Operator Address List (full)
Version 271 - 6th January 2021
Database Updated: 13th January 2021
Not for commercial publication or use.
| Company Name | Address | Telephone | External Link |
| (aq) Ltd | 13-15 Hunslet Road, Leeds LS10 1JQ | 0113 320 3040 | https://aql.com/ |
| 001 Ltd | 4 Cedar Court, Parkway, Porters Wood, St Albans, Hertfordshire AL6 3PA | 0845 389 2001 | |
| 001 International Telecom | |||
| 01 Telecom Ltd | The Old Factory, 31-32 Devonshire Place, Brighton BN2 1QB | 020 7186 0101 | https://www.01t.co.uk/ |
| 03 Numbers For Free | 54 Langham Road, Blackburn BB1 8BH | 033 0606 0023 | https://www.03numbersforfree.co.uk/ |
| 08 UK Ltd | Gibsons Court, 5 Gibsons Road, Stockport SK4 3HR | 08444 939 444 | |
| 0800 Numbers Ltd | Arun House, Hurst Road, Horsham, West Sussex RH12 2DN | ||
| 0844 Calls | https://www.0844calls.co.uk/ | ||
| 08Direct Ltd | Mazhar House, 48 Bradford Road, Stanningley, Leeds LS28 6DF | 0844 504 4000 | https://www.08direct.co.uk/ |
| 08numbers.com | 23 New Mount Street, Manchester M4 4DE | 0800 950 0800 | https://www.08numbers.com/ |
| 1 Office Equipment Ltd | Unit 10-11 Riverside Court, Mayo Avenue, Dundee DD2 1XD | 01382 644362 | |
| 1 Red Cube Ltd | Suite 55, 33 Queen Street, Wolverhampton, West Midlands WV1 3AP | 01902 583 990 | |
| 1 Touch Telecoms Ltd | Office 11, Hyde Park Business Centre, Glasgow G21 4SF | 0141 550 4747 | |
| 100 Percent IT Ltd | Wessex House, Oxford Road, Newbury, Berkshire RG14 1PA | 01635 814440 | |
| 101 Computers | 6 Halvergate Road, Reedham NR13 3HN | 07747037235 | |
| 101 Data Solutions Ltd | Somer Valley Enterprise Park,, Paulton House, Old Mills, Paulton BS39 7SX | 01761 568141 | |
| 10ACT Ltd | 8 Waldegrave Road, Teddington, Middx TW11 8HT | 020 3131 3111 | https://trackback.net/ |
| 10thCloud Ltd | James Taylor House, St-Albans Road East, Hatfield AL10 0HE | 0208 0901300 | |
| 110 Telecoms Ltd | 4 St Meryl Suite, Watford WD19 5BE | 08447701101 | |
| 118 Ltd | Sterling House, Malthouse Avenue, Cardiff Gate Business Park, Cardiff CF23 8RA | 029 2055 0000 | https://www.conduitglobal.com/ |
| 118 777 | https://switchingon.com/ | ||
| 121 Communictions | 4 Firmin Aveune, Boughton Monchelsea, Maidstone ME17 4NN | 01622 474730 | |
| 121 IT Services Ltd | Unit 6 Westbrook Court, 2 Sharrow Vale Road, Sheffield S11 8YZ | 01142685121 | |
| 123Telecom Ltd | 25 BSC Centre, Innovation Quarter, Hood Road, Barry CF62 5QN | 030 3030 0123 | https://123telecom.co.uk/ |
| 123vISP.co.uk | https://www.123visp.co.uk/ | ||
| 127 Solutions Ltd | The Heath Business & Technical Park, Runcorn, Cheshire WA7 4QX | 0845 8621 127 | |
| 1310 Ltd | Second Floor, Chester House, Farnborough Aerospace Centre, Farnborough GU14 6TQ | 03333001310 | |
| 18185.co.uk | https://www.18185.co.uk/ | ||
| 1823 Group Ltd | 4a Church Court, Richmond TW9 1JL | +44 (0)20 3691 5551 | |
| 1899.com | https://www.1899.com/ | ||
| 1AffordableCall Ltd | Woodley Business Centre, 166 Nightingale Road, Reading, Berks RG5 3LZ | 01189 014403 | https://www.1affordablecall.co.uk/ |
| 1-Fix Ltd | Unit 14 Falcon Business Park, Ivanhoe Road, Hogwood Lane Industrial Estate, Finchampstead RG40 4QQ | 01189260084 | |
| 1st Advance Ltd | |||
| 1st Byte IT Solutions Ltd | 5 Clifton Moor Business Village, James Nicholson Link, York YO30 4XG | 01904 890690 | |
| 1st Call Communications Ltd | Station House 6a Station Road Eckington Sheffield South Yorkshire S21 4FX | 01246 439 800 | https://1call.co.uk/ |
| 1st Callcom Ltd | 01246 439800, Ravenshorn Way, Renishaw S21 3WY | https://www.1call.co.uk/ | |
| 1st Communications Ltd | 15 Bowling Green Lane, London EC1R 0BD | 020 7553 4488 | |
| 2 Advanced IT Ltd | Unit 4 145 Great Ancoats Street, Manchester M4 6DH | 01613936204 | |
| 2 Circles Communications Ltd | Ver House, 23-25 High Street, Redbourn, Herts AL3 7LE | 0845 6200 200 | |
| 2 Way Radio Shop | https://www.2wayradioshop.co.uk/ | ||
| 20 Telecom Ltd | 101 Finsbury Pavement, Moorgate, London EC2A 1RS | 0333 45678 20 | |
| 21 Plus Telecom Ltd | Evans Business Centre, Manchester Road, Bolton BL3 2PY | 01204 368 636 | http://www.21plustelecom.co.uk/ |
| 21st Century LAN Ltd | 7 The Drive, Southwick BN42 4RR | 01273 270996 | |
| 21st Century Network Solutions Ltd | Hoghton St, Southport PR9 0NS | 01704540547 | |
| 21st CENTURY SOLUTIONS LTD | 263 Burnt Oak Broadway EDGEWARE, LONDON HA8 5ED | 0800 4334423 | |
| 21st Webb Ltd | Unit 1, Spencer Trading Estate, Rhyl Road, Denbigh LL16 4EU | 03333 661289 | |
| 24 Seven Cloud Communications Ltd | Telecoms House, 4 Sheepscar Court, Leeds LS7 2BB | 0800 024 7247 | https://24seven.co.uk/ |
| 24 Seven Communications Ltd | Telecoms House, 4 Sheepscar Court, Leeds LS7 2BB | 0800 024 7247 | https://24seven.co.uk/ |
| 24/7 Business Support Ltd | Planet House, Northumbrian Way, Killingworth, Newcastle upon Tyne NE12 6EH | 01912303247 | |
| 25sevenit Ltd | 1 Stephen Street, London W1T 1AL | 02074948620 | |
| 287 Comms | 75 Shelton Street, Covent Garden, London WC2H 9JQ | 03338884041 | |
| 2Abroad Ltd | 138 Wayside Green, Woodcote, Reading RG8 0QJ | https://2abroadsecure.azurewebsites.net/ | |
| 2Ergo | |||
| 2fourseven | The Trees, Sulhamstead Road RG7 4EE | 08456385224 | |
| 2LOGIC Ltd | Four Ashes House, Four Ashes Business Park, Station Road, Wolverhampton WV10 7DB | 03302232340 | |
| 2MITC | 30 Kintullagh Court, Ballymena BT43 5JG | 07917886772 | |
| 2-Sell-It | |||
| 2x2 Support Ltd | 143 Henley Road, Bedford MK40 4FZ | 07478911984 | |
| 3 Technology Ltd | 124 Anlaby Road, Kingston upon Hull HU3 2JH | 01482240005 | |
| 360 Office Ltd | 100, Lime Street, Hull HU8 7AR | 03333580511 | |
| 360 Solutions (UK) Ltd | 360 House, 1 Faraday Court, Centrum 100, Burton on Trent, Staffs DE14 2WX | 0845 223 6360 | |
| 360coms Ltd | 1 Cabot House, Stocks Bridge Way, Compass Point Business Park, St Ives PE27 5JL | 01480 468000 | https://www.360group.co.uk/ |
| 360CRM Ltd | 80 St Vincent Street, Glasgow G2 5UB | 0141 433 0500 | http://www.ersconnect.co.uk/ |
| 360ctrl Ltd | Fair Trade House, 3 Whittle Avenue, Fareham, Hampshire PO15 5SH | 03300947561 | |
| 365 Itms Ltd | Napolean House, Riseley Business Park, Riseley, Reading RG7 1NW | 01189885558 | |
| 365ICT Ltd | 6 Tadworth Parade, Hornchurch, Essex RM12 5AS | 013750275001 | |
| 3aIT | 51 Bishopric, Horsham, West Sussex RH12 1QJ | 020 3384 3932 | |
| 3c Technology Ltd | Network House, Hawkins Road, Colchester CO2 8LA | 01206 790 060 | |
| 3C Tele.com | https://www.3ctele.com/ | ||
| 3D Komputers | 1 Broom Place, Portree, Isle of Skye IV51 9HL | 01478 613 576 | |
| 3D Telecom | Broseley House, 81 Union Street, Oldham OL1 1P | 0161 622 1845 | https://3dtelecom.co.uk/ |
| 3dsl ltd | 11 new road, chippenham SN15 1HJ | 01246 460766 | |
| 3gi Technology Ltd | Whitegates Business Centre, Alexander Lane, Shenfield, Essex CM15 8QF | 02035882584 | |
| 3it Ltd | 2 Forbes Business Centre, Kempson Way, Bury St Edmunds, Suffolk IP32 7AR | 08456 424333 | |
| 3Net Office Solutions Ltd | 3 Chuaucer Street, BOLTON BL1 3HR | 08445860786 | |
| 3R Telecom Ltd | 28 Lindsey Street, Epping, Essex CM16 6RD | 01992 564644 / 07958 562413 | |
| 3TEC Ltd | Home Farm Office, Wrotham Business Park, Barnet, Hertfordshire EN5 4SB | 020 8275 1120 | |
| 4 Business Calls Ltd | 282 Heywood Old Road, Middleton, Manchester M24 4QG | 0807 300 4299 | |
| 4 Oceans Telecom Ltd | 6 Lilies, High Street, Weedon, Bucks HP22 4NS | 020 3397 0491 | |
| 42 Com Telecommunication Gmbh | Friedrichstrabe 231, D-10969, Berlin | +49 (0)30-340 605 907 | |
| 447 Services Ltd | 37 High St, Huntingdon PE29 3AQ | 01480 455156 | |
| 46trees Ltd | Keepers Cottage, Hallaton Road, Tugby, Leicester LE7 9WB | 01858555600 | |
| 4Com PLC | Loewy House, 11 Enterprise Way, Aviation Park West, Christchurch, Dorset BH23 6EW | 0844 375 0000 | https://www.4com.co.uk/ |
| 4D Data Centres Ltd | Sirius 2, 122 Oyster Lane, Byfleet KT14 7JU | 02071830602 | |
| 4D Interactive Ltd | Orega Business Centre, 1 Hardwicks Square, London SW18 4AW | 020 7966 0115 | http://www.4dinteractive.co.uk/ |
| 4G Mobiles and Data Ltd | Suite 38, Europa House, Barcroft Street, Bury, Manchester BL9 5BT | 0161 764 5240 | |
| 4G Voice and Data Ltd | Suite 8, Penistone 1, Regent Court, St Mary's Street, Penistone S36 6DT | 01977529555 | |
| 4Net Technologies Ltd | Maclaren House, Talbot Road, Manchester M32 0FP | 0845 055 6366 | |
| 4s Systems Ltd | Shepperton Studios, Studios Road, Shepperton, Middlesex TW17 0QD | 01932572345 | |
| 4Sight Communications Ltd | 4 Ingate Place, London SW8 3NS | 020 3668 0444 | |
| 4site IT Solutions Ltd | THE FIRS, GREENFIELDS LANE, ROWTON, CHESTER CH36AU | 08442499886 | |
| 4tel Communications | 1st Floor, Carrick Business Centre, Commercial Road, Penryn, Cornwall TR10 8AR | 0870 750 6300 | https://www.4telgroup.com/ |
| 4th Platform Ltd | Principal House, Parsonage Business Park, Horsham RH12 4AL | 0333 240 8130 | |
| 4ward Communications | Unit G35, Hastingwood Trading Estate, Harbet Road, LONDON N18 3HT | 08700 411 005 | https://www.4ward-communications.co.uk/ |
| 4way Solutions | https://www.4waysolutions.co.uk/ | ||
| 4way Support Services LTD | 21 Station Close, Potters Bar EN6 1TL | 01707 648 580 | |
| 4xl Professional Services Ltd | 152-160, City Road, London, London EC1V 2NX | 03003030710 | |
| 5 Rings Telecom Ltd | Unit 14, Triangle Business Park, 95 Commerce Way, Lancing Business Park, West Sussex BN15 8UP | 0844 575 0550 | https://www.5ringsgroup.co.uk/ |
| 500 Ltd | Unit 500, 17 Holywell Hill, St Albans, Hertfordshire AL1 1DT | 0845 0000 500 | http://www.500.uk.com/ |
| 5050partnership | 32 Finsbury Park, Widnes, Cheshire WA8 9WN | 07885746249 | |
| 52Degrees Telecom Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 0207-965-7352 | |
| 5C Services Ltd | 10d Broad Street, The Courtyard, Buith Wells, Powys LD2 3DT | 01982 552 239 | |
| 5G Communications Ltd | Phoenix House, Desborough Park Road, High Wycombe, Buckinghamshire HP12 3BQ | 01494 833 833 | https://www.5gcomms.com/ |
| 5iB Ltd | 1 Church Street, Stourbridge DY8 1LT | 0333 577 1555 | |
| 5miles Communications Ltd | 67 London Road, Bognor Regis, West Sussex PO21 1DF | 08452 249 041 | |
| 5Tel Ltd | 69 Wansford Road, Woodford Green IG8 7AD | 02084828017 | |
| 6G | https://www.6ginternet.com/ | ||
| 6G Internet Ltd | Lockside Office Park, Lockside Road, Riversway, Preston PR2 2YS | 01282777711 | |
| 7 Telecommunications Ltd | Suite 15732, 145-147 St John Street, London EC1V 4PW | 0845 894 9773 | |
| 7-6 Comms Ltd | 12 Fratton Road, Portsmouth PO1 5BX | 02392006401 | |
| 800Comms | 85 Tottenham Court Road, London W1T 4TQ | 020 3744 3292 | https://www.800comms.co.uk/ |
| 802 Works Ltd | Atrium Business Centre, North Caldeen Road, Coatbridge ML5 4EF | 0845 278 8800 | |
| 8020 Ltd | 38 George Street, Dumfries DG1 1EH | 01387 250008 | |
| 8086 IT Solutions Ltd | Foxhall Lodge, Foxhall Road, Nottingham NG7 6LH | 08704018086 | |
| 815it Ltd | 815 IT, Greyshott Avenue, Fareham, Portsmouth PO143AS | 01489854895 | |
| 81G Ltd | 2 Venture Road, Southampton Science Park, Southampton, Hampshire SO16 7NP | 0845 3030819 | |
| 848 I.T Services Ltd | 41a Eastgate Street, Stafford ST16 2LY | 07868 848 848 | |
| 848 IT Services | https://848.co/ | ||
| 868 Ltd | 307 Forton Road, Gosport PO12 3HD | 03333359868 | |
| 8X8 UK Ltd | Oxford House, Bell Business Park, Aylesbury, Bucks HP19 8JR | 020 7096 6000 | https://www.8x8.com/ |
| 9 Group Ltd | Unit 900 The Hub, Sperry Way, Stonehouse Business Park, Stonehouse GL10 3UT | 08000685939 | |
| 900telecom Ltd | 34 Market Place, Devizes SN10 1JG | 01380724400 | |
| 999 Network Services | PO Box 9019, Sudbury, Suffolk CO10 0BX | 0345 004 3579 | |
| 9Eons Ltd | 5 Bilbrook Lane, Furzton Lake, Milton Keynes MK4 1LU | 020 7160 9700 | https://www.9eons.com/ |
| A & A Technology | Delta House, 4 The Village, Keele, Newcastle Under Lyme ST5 5AR | 01782 620330 | |
| A & C Computers Ltd | 7 Progression Centre, Mark Road, Hemel Hempstead HP2 7DW | 01442620063 | |
| A & K Communications Ltd | 408 Little Wakering Road, Barling Magna, Southend on Sea, Essex SS3 0LP | 01702 218620 | |
| A P Systems (NW) Ltd | Systems House, 6 Millbank Road, Rhyl, Denbighshire LL184NY | 01745 353501 | |
| A P Systems (Scotland) Ltd | 16 GRANT STREET, CULLEN, Cullen, BUCKIE AB56 4RS | 01542841121 | |
| A&M Systems Ltd | 54 Wargrove Drive, College Town, Sandhurst, Berkshire GU47 0DU | 01344 750 884 | |
| A.& S. Donaldson (Northern Ireland) Ltd | Systems House, 12 Enterprise Crescent, Lisburn BT28 2BP | 02892675114 | |
| A.K.Robinson Ltd | Caxton Point, Caxton Way, Stevenage SG1 2XU | 01438 535322 | |
| A1 Comms Ltd | Contract House, Turnpike Business Park, Alfreton DE55 7AD | 01773522300 | |
| A1IT Solutions Ltd | Network House, Southbourne Business Park, Eastbourne BN22 8UY | 01323 400 300 | |
| A2B Telecom Ltd | 1 Emperor Way, Exeter Business Park, Exeter, EX1 3QS | 0845 652 1333 | https://www.a2btelecom.com/ |
| A2Z Computing Ltd | The Old Chapel, Hereford Street, Newport NP19 8DT | 01633 676543 | |
| A2z Technologies Ltd | 1 Blackhorse Lane, Bristol BS16 6TR | 07771700337 | |
| A4 IT Solutions Ltd | 54A Chuch Road, Ashford, Middlesex TW15 2TS | 07785738222 / 07808707404 | |
| A41 IT Services Ltd | PO Box 1136, St Albans AL1 9UJ | 01727515980 | |
| A8C Ltd | KEMP HOUSE, 160 CITY ROAD, London EC1V 2NX | 02037737869 | |
| Aabyss Ltd | 19 Meridian Business Village, Hansby Drive, Hunts Cross, Liverpool L24 9LG | 01517333223 | |
| AAC Services Ltd | Manton Lane, Bedford, Beds MK41 7TL | 01234 227 788 | |
| Aardvark Installation Services | 2 Bell Lane, Lanner, Redruth, Cornwall TR16 6AP | 01209 214 287 | |
| Aardvark IT | Flat 2, 10 Saffrons Road, Eastbourne BN21 1DU | 0870 224 0166 | |
| Aastha Ltd | 353A York House, Harrow HA1 1LN | 02037510000 | |
| AAV Systems Ltd | 15 Doveridge Road, Brizlincote, BURTON-ON-TRENT DE15 9GB | 01283 80 81 82 | |
| AB Internet Ltd | 62 Sewell Road, Lincoln, Lincolnshire LN2 5QX | 01522 821 111 | |
| Abacus Communications | 45 Beetham Road, Milnthorpe, Cumbria LA7 7QN | 01539 898048 | |
| Abacus Systems Ltd | Cartbridge House, Broadmead Road, Send, Woking GU23 7AD | 01483 740047 | |
| Abbey Telecom Ltd | Logic House, Ordnance Street, Blackburn, Lancashire BB1 3AE | 01254 272000 | https://www.abbeytelecom.co.uk/ |
| Abbeycomp IT Solutions Ltd | 86 Gloucester Place, London W1U 6HP | 0207 487 4817 | |
| ABC Networking Ltd | 15 Barnack Business Centre, Blakey Road, Salisbury SP1 2LP | 01722 411999 | |
| Abc Service | Flat 1, 2 West Street, Tavistock, Devon PL19 8AD | 01822613154 | |
| Abel & Co (Scotland) | |||
| Aberconwy Phone Services | https://www.pacetelecom.co.uk/ | ||
| ABI Business Services Ltd - | 228 Widdrington Road, Coventry CV1 4PB | 024 7601 1433 | |
| Abica Ltd | 72 Elderslie Street, Glasgow G3 7AL | 0845 373 3622 | |
| Able Ict Ltd | 87a High Road, Ickenham, Uxbridge UB10 8LH | 01895540035 | |
| ABM Computer Solutions Ltd | Unit 8-9 Temple Bar Business Park, Strettington, Chichester PO18 0TU | 01243773113 | |
| About IT Ltd | Unit S14 Allen House, The Maltings, Sawbridgeworth, Herts CM21 9BN | 01279 461 910 | |
| ABS Computer Systems Ltd | James House, 40 Lagland Street, Poole BH15 1QG | 01202 770900 | |
| Absolute Networks Ltd | Friar Gate Studios, Derby DE1 1EE | 01332291992 | |
| Absolute Technology UK LTD | Enterprise House, Ocean Way, Southampton SO14 3XB | 023 8057 4741 | |
| ABtec Computer Solutions LTD | Unit 8 Armstrong Point, Swan Lane, Wigan WN2 4AU | 01942 209060 | |
| Abtec Network Systems Ltd | Barents House, Compass Point, Market Harborough, Leicestershire LE16 9HW | 01858 438 510 | https://www.abtecnet.com/ |
| Abussi Ltd | 1 Victoria Square, Birmingham B1 1BD | ||
| Abzorb Systems Ltd | Armytage Road, Brighouse HD6 1QF | 01484 405 300 | |
| Academia Ltd | 8 Kinetic Crescent, Innova Park, Enfield EN3 7XH | 01992703900 | |
| Accelerator Ltd | Studio at 46, The Brooks Shopping Centre, Middlebrook Street, Winchester SO23 8QY | 02079933102 | |
| Accent Telecom UK Ltd | PO Box 328, Witney OX28 1ZR | 0870 950 1630 | |
| Accent Voice & Data Ltd | 180 Markfield Road, Leicester LE60FS | 01530244933 | |
| Accentiva Ltd | 145-157 St John Street, London EC1V 4PY | 020 8916 9292 | |
| Accentuate Comms Ltd | Rickleton 2c, Bowes Business Park, Chester-le-Street, County Durham DH3 4AN | 0191 4489444 | |
| Access Control People Ltd | Office 2 Winnings Court Yard, Walbottle Road, Newburn, Newcastle upon Tyne NE15 9RU | 03333580331 | |
| Access Denied Worldwide Ltd | 8 Morley Court, River Lane, Fetcham KT22 9RZ | 03330112658 | |
| Access Telecommunications Retail Ltd | |||
| Accesspoint Technologies Ltd | Unit 7 Ashton Gate, Ashton Road, Romford RM3 8UF | 0203 189 2645 | |
| Accounts Centre | |||
| Accounts Computers Ltd | 11 London Road, Sevenoaks TN13 1AH | 01732466666 | |
| ACE IT BUSINESS SOLUTIONS LLP | Chrysalis Way, Eastwood, Nottingham NG16 3RY | 01773719748 | |
| Ace IT Services LTD | 5 Anderton Street, Morecambe LA4 5DA | 01524 411666 | |
| Ace IT Services LTD | Ace Telecoms Ltd, 52 Drumlish Rd, Omagh BT783EN | 02882898007 | |
| Acerola | 2 Claremont Villas, Old Bristol Road, Nailsworth GL6 0LH | 01453 834430 | |
| Ackacs Ltd | 13 The Slade, Oxford OX3 7HL | 01865594733 | |
| ACL Telco Ltd | Communication Centre, 10 Penllyn Works, Plassey Street, Bala, Gwynedd LL23 7SW | 0800 004 8687 | |
| ACM Energy Consultants Ltd | 204 Brooklands Road, Sale, Cheshire M33 3PH | 07599 072251 | |
| Acme Uc Ltd | 7D Dragoon House, Hussar Court, Waterlooville PO7 7SF | 020 3880 2810 | |
| ACN European Services Ltd | Tower 42, 25th Floor, 25 Old Broad Street, London EC2N 1HQ | 020 7949 0102 | https://acneuro.co.uk/ |
| Acomys Ltd | 2 Church Street, Wiveliscombe, Taunton TA4 2LR | 01984 678 150 | |
| Acomz Networks Ltd | Basepoint Business Centre, Bromsgrove Technology Park, Bromsgrove B60 3ET | 01527529922 | |
| Acorn Networks Services Ltd | 68 Great Eastern Street, London EC2A 3JT | 020 7643 5900 | https://www.acorn.uk.com/ |
| ACR Networks Ltd | Unit 3 Landscape Close, Weston-on-the-Green, Bicester, Oxon OX25 3SX | 01869 342142 | https://www.connect2tele.com/ |
| Acronyms Ltd | Tamar Science Park, Derriford, Plymouth, Devon PL6 8BX | 01752 606553 | |
| Acropolis Online Ltd | 29 harley street, LONDON W1G 9QR | 03301240329 | |
| ACS Computer Services Ltd | 44-45 Market Place, Chippenham SN15 3HU | 01249 470070 | |
| ACS Solutions Ltd | 18a Rolle Street, Exmouth, Devon EX8 1NJ | 01395 548 210 | |
| ACS Systems Uk Ltd | Oxwich Close, Brackmills Ind Est, Northampton NN4 7BH | 01604 704000 | |
| ACT (Comms) Ltd | Bronzeoak House, Stafford Road, Caterham, Surrey CR3 6JG | 01883 779 948 | |
| Activ Communications | |||
| Active Business Communications Ltd | Active House, 11 Bredbury Business Park, Bredbury Park Way, Bredbury, Stockport SK6 2SN | 0161 355 1717 | |
| Active Comm.Solutions | |||
| ACTIVE Computers (UK) Ltd | 1-4, The Granary,, Wem SY4 5PJ | 01939 550040 | |
| Active Digital Communications | Actove Digital Communications Ltd, Active House, Transfesa Road, Paddock Wood,, Kent TN12 6UT | 01892 835522 | |
| Active Information Systems Ltd | 40 Ann Street, Worthing BN11 1NX | 01903 257070 | |
| Active Office Scotland Ltd | 22 Douglas Street, Kilmarnock KA1 1RB | 01563 545977 | |
| Active Voice & Data Ltd | Units 7 & 9 Kendray Business Centre, Thornton Road, Barnsley, South Yorkshire S70 3NA | 0800 542 5390 | |
| activereach Ltd | Prospect House Business Centre, Crendon Street, High wycombe HP13 6LA | 08456259025 | |
| Activtelecom Ltd | Hadrian House, Balliol Business Park West, Cramlington, Newcastle Upon Tyne NE12 8EW | 0191 244 9400 | |
| Acton-Tec Services Ltd | Rural Enterprise Centre, Stafford Drive, Shrewsbury SY1 3FE | 0845 174 0010 | |
| Acturis Ltd | 100 Hatton Garden, London EC1N 8NX | 0207 079 4090 | |
| Acuiti Solutions Ltd | The Laurels, Trewyn Road, Holsworthy, Devon EX22 6HX | 01409 259196 | |
| Acuity Unified Communications Ltd | 2nd Floor, 2235-2243 Coventry Road, Birmingham B26 3NW | 0333 344 3030 | https://acuityuc.com/ |
| Acutec Ltd | St Peters House, Church Hill, Coleshill, West Midlands B46 3AL | 01675 469020 | |
| Acutel Ltd | PO Bov 186, Heathfield TN21 1AS | 0845 612 9880 | |
| Acuutech Ltd | 5/6 York House, Langston Road, Loughton, Essex IG10 3TQ | 020 8502 2155 | |
| AD Network Solutions Ltd | 10 River Court, Brighouse Road, Riverside Park, Middlesbrough TS2 1RT | 01642 248750 | |
| ADA Networks Ltd | 3 Mill Court, Mill Lane, Newbury, Berks RG14 5RE | 01635 523131 | |
| Adam Phones Ltd | https://www.adamphones.com/ | ||
| Adam Telecom Ltd | 6 Brook Hey Close, Rochdale OL129TA | 01706550487 | |
| Adaptive Communication Solutions Ltd | 72 King Street, Southport PR8 1LG | 0800 634 8889 | |
| Adaptivecomms | https://www.adaptivecomms.co.uk/ | ||
| Add Technology Ltd | UNIT 3,200A BURY RD, TOTTINGTON, BURY BL83DX | 01204888184 | |
| Addcom IT Ltd | 1 waverley lane, Farnham GU9 8BB | 01252856061 | |
| Addooco IT LTD | Dundee House, Millennium Way, Dunston Road, Chesterfield S41 8ND | 01246887887 | |
| ADECS Ltd | 6 Coventry Innovation Village, Cheetah Road, Coventry CV1 2TL | 02476995930 | |
| Adept Communications Ltd | Link House, 140 The Broadway, Tolworth, Surrey KT6 7HT | 020 8339 8888 | |
| Adept Communications And Technology Ltd | Azure Business Centre, Newcastle upon Tyne NE15 8LN | 01913410123 | |
| Adept Computer Services Ltd | 45 Byron Street, LEEDS LS2 7QJ | 01132237300 | |
| Adept IT Ltd | Granville House, Granville Road, Maidstone ME14 2BJ | 01622 809590 | |
| Adept Systems (Hull) Ltd | 20 Wright Street, Hull HU2 8HU | 01482935934 | |
| Adept Telecom | 1st Floor, 27 Mount Ephraim, Tunbridge Wells TN4 8BS | 0870 190 9100 | https://www.adept.co.uk/ |
| Adept Telecom Business Call Plans | https://www.adept.co.uk/ | ||
| Adept Telecom Workwise | https://www.adept.co.uk/ | ||
| Adept4 Managed IT Ltd | 7750 Daresbury Business Park Daresbury Office Village Warrington, Cheshire WA4 4BS | 0808 252 4444 | https://www.adept4.co.uk/ |
| Adepteo Ltd | 24 Market Street, Tottington, Manchester BL8 4AD | 0161 710 3000 | https://www.adepteo.net/ |
| Adeza Systems Ltd | Jubilee House, Merrion Avenue, Stanmore HA7 4RY | 0203 0044775 | |
| Adharasi Ltd | 18, Woodstock Way, Mitcham, Surrey CR4 1BA | ||
| ADI Telecom | 66 Melchett Road, Kings Norton Business Centre, Kings Norton, Birmingham B30 3HX | 0121 451 2255 | |
| ADK Communications | 7a The Maltings, Railway Place, Hertford, Herts SG13 7JT | 0845 345 9212 | |
| ADM Computing Services Ltd | 4 Tabley Court Moss Lane, Knutsford WA16 0PL | 01565 755200 | |
| ADM Computing Services Ltd | Chaucer Road, Canterbury CT1 1HH | 01227473500 | |
| Admiral Managed Networks | Victory House, Chobham Street, Luton, Beds LU1 3BS | 0870 330 7500 | https://www.workflow-group.co.uk/ |
| Workflow Managed Networks Ltd | Victory House Chobham Street Luton Bedfordshire LU1 3BS | 0845 270 5071 | http://www.admiral-group.com/ |
| Admiral Telecom | |||
| Nine Telecom Ltd | Victory House Chobham Street Luton Bedfordshire LU1 3BS | 01582 557 925 | |
| Adodo Consultancy Services Ltd | 26 Cropwell Road, Radcliffe-on-Trent, Nottingham NG12 2FS | 0115 970 1471 | |
| Adoltis Ltd | Whiteley Mill, Nottingham Road, Stapleford, Nottingham NG9 8AD | 0800 6122 848 | |
| Adooa Ltd | 26 London Road, St Albans AL1 1NG | 03300948018 | |
| Adrian James | The Chambers, Market Place, Chapel-en-le-Frith, High Peak SK23 0EN | 08445042986 | |
| Adsi Ltd | Alexander House, Christy Court, Basildon SS15 6TL | 01268495555 | |
| ADSI Technology Ltd | Alexander House, Christy Court, Basildon SS15 6TL | 01268495566 | |
| ADSL24 Internet Ltd | 24 Media House, Gatehead Business Park, Delph New Road, Oldham OL3 5DE | 01457 6000 24 | |
| ADT Systems Ltd | 4 Donald Road, Bristol BS13 7DG | 0117 941 0930 | https://www.adtsystems.co.uk/ |
| Adtrak Services Ltd | Wayside, 1 Hallfields, Edwalton, Nottingham NG12 4AA | 0800 542 0116 | |
| Advance Computer Services Ltd | Brewery House, High Street, WESTERHAM TN16 1RG | 01959730460 | |
| Advance IT Group Ltd | Advance House, 9 Waterfall Lane Trading Estate, Old Hill, Birmingham B64 6PU | 01215012288 | |
| Advance Network Services Ltd | |||
| Advanced 365 Ltd | 230 City Rd, London EC1V 2TT | 02078808888 | |
| Advanced Computer Systems (UK) Ltd | Unit 6, Hayfield Business Park, Doncaster, South Yorkshire DN9 3FL | 01302 774 820 | |
| Advanced Computer Technologies Ltd | 23 Saltergate Drive, Harrogate HG3 2YE | 01423 858064 | |
| Advanced Data Systems | Oaston House, Oaston Road, Nuneaton, Warwickshire CV11 6JZ | 0845 2260 960 | |
| Advanced Health and Care Ltd | Advanced Health and Care Limited, Munro House, Portsmouth Road, Cobham, Surrey KT11 1TF | 07825 266668 | |
| Advanced IT Services | http://www.advanceditservices.co.uk/ | ||
| Advanced Media Engineering Ltd | Sannerville Chase, Exminster, Exeter, Devon EX6 8AT | 01392 824 022 | |
| Advanced Technology Consultants Ltd | 106 Church Lane, Marple, Stockport, Cheshire SK6 7AR | 0161 426 0404 | |
| Advancery Ltd | 19 Victoria Mews, Cottingley Business Park, Bingley BD16 1PY | 01274 45 22 22 | |
| Advant Consultancy Ltd | 38 Cemetery Road, Audenshaw, Manchester M34 5AH | 03303452745 | |
| Advantage Communications (UK) Ltd | Eden House, Hartlebury Trading Estate, Hartlebury, Worcestershire DY10 4JB | 01299 252 377 | |
| Advantage Networks (UK) Ltd | 4th Floor, 45 Conduit Street, London W1S 2YN | 0845 310655 | |
| Advantedge IT Solutions Ltd | AdvantEdge IT Solutions Ltd, Aldershot Enterprise Centre, Gallwey Road, Aldershot GU11 2PW | 03303503830 | |
| Advantex Network Solutions Ltd | 16B Follingsby Close, Gateshead, Tyne and Wear NE10 8YG | 0845 222 0666 | |
| Advoco Solutions Ltd | Unit 11, Thatcham Business Village, Colthrop Way, Thatcham, Berkshire RG19 4LW | 08452 608801 | |
| Adwconnect Ltd | Stirling House, Breasy Place, 9 Burroughs Gardens, Hendon London NW4 4AU | 020 8089 1111 | |
| Aecsys Technologies Ltd | Unit 5, 1000 North Circular Road, London NW2 7JP | 0870 974 2922 | |
| Aeon Converged Voice And Data Ltd | Nelson House, Motherwell Way, West Thurrock, Grays RM20 3XD | 0800 849 8458 | |
| Aerial Direct Ltd | Unit B Quay West Business Centre, Quay Lane, Gosport PO12 4LJ | 02392603055 | https://www.aerial-direct.co.uk/ |
| Aerial Telephones Ltd | 10-12 Rodney Road, Portsmouth PO4 8SY | 02392 737 513 | |
| Aeriandi Ltd | Prama House, Banbury Road, Oxford OX2 7HT | 0845 108 0308 | https://www.aeriandi.com/ |
| Aero Networks Ltd | The Axis Building, Maingate Team Valley Trading Estate, Kingsway North, Gateshead, Tyne and Wear NE11 0NQ | 0845 6430 595 | |
| Aerofinity Ltd | Framlingham Technology Centre, Station Road, Framlingham IP13 9EZ | 08000465182 | |
| Aertel Ltd | 13 Stamford Close, 324-326 Regent Street, London N15 4PX | 02075866660 | |
| Affinicom Ltd | Leeds Farm House, Poplar Road, Wittersham, KENT TN30 7NT | 01797 270 441 | |
| Affiniti Integrated Solutions Ltd | 37 Carr Lane, Hul, HU1 3RE | 01482 602100 | https://www.kcom.com/ |
| Affinity Communications Ltd | 19 Brunswick Road, Altrincham WA14 1LP | 01618706377 | |
| Affinity IT Services Ltd | Unit 24 President Buildings, Savile Street East, Sheffield S4 7UQ | 01143627000 | |
| Affinity Network Solutions Ltd | Wayland House, High Street, Watton IP256AR | 01953202003 | |
| Affinity Systems Ltd | Sunderland Software Centre, Tavistock Place, Sunderland SR1 1PB | 0191 5808858 | |
| Affinity Technology Ltd | 8 viceroy House, Mountbatten Business center, Millbrook road east, Southampton SO15 1HY | 02380981008 | |
| AFF-IT Ltd | Suite 7.4, Fairways House Offices, Mount Pleasant Road, Southampton SO14 0QB | 02380000770 | |
| af-it ltd | 129 South Street, Crewkerne TA18 8AA | 01460298197 | |
| AFP Technology Ltd | Unit 2, College Court, Gildersome, Leeds LS277WF | 01924201737 | |
| AG Computer Services | 30 Equity Road, Earl Shilton LE9 7FD | 01455841674 | |
| Agaara Ltd | Flat 2, 59 Battersea Bridge Road, London SW11 3AU | 020 7078 9010 | |
| Agape Communications Ltd | 142 Craigs Road BT38 9XA | 02893 212 020 | |
| Agenda IT Ltd | Great Bowden Road, Market Harborough LE16 7DE | 01858450470 | |
| Agila Ltd | Geddes House Business Centre, Kirkton North, Livingston EH54 6GU | 01506 204832 | |
| Agile Communications Ltd | Qnet House, Malleable Way, Stockton-On-Tees TS18 2QX | 0871 700 4790 | |
| Agile ICT Ltd | Agile House, 2 Manor Court, Barnes Wallis Road, Fareham PO15 5TH | 01329801801 | |
| Agile IT Ltd | Elsinore House, 43 Buckingham Street, Aylesbury, Bucks HP20 2NQ | 01296 399237 | |
| Agnito UK Ltd | 7200 The Quorum, Oxford Business Park, North Garsington Road, Oxford OX4 2JZ | 01865 524 524 | |
| Agritalk Ltd | The Paddocks, Millington Lane, Kilnwick Percy, York YO42 1UF | 01904500575 | |
| AGT (UK) Ltd | Railway Arch 447, Wickwood Street, London SE5 9DW | 020 3745 4303 | |
| Agurtso Holdings Ltd | Business First Centre, Goodlass Road, Garston, Liverpool L24 9HJ | 0845 120 5440 | |
| Ahead4 Ltd | 117 Hullbridge Road, South Woodham Ferrers, Essex CM3 5LL | 01245 426 163 | |
| AI Networks Ltd | Unit H-K Gateway 1000, Whittle Way, Arlington Way Business Park, Stevenage SG1 2FP | 020 7183 1042 | |
| AIC-IT Ltd | The Lodge, Stadium Way, Harlow CM19 5FP | 01279 306677 | |
| Aindale BMS Ltd | 31-33 Chapel Hill, Huddersfield, West Yorkshire HD1 3ED | 01484 518899 | |
| Air Broadband Ltd | Old Sunday School, Chapel Street, Waterbeach, Cambridge CB25 9HR | 01223 653400 | https://airbroadband.co.uk/ |
| Air IT Ltd | H3 Ash Tree Court Mellors Way, Nottingham Business Park, Nottingham NG8 6PY | 0845 004 5029 | https://www.air-it.co.uk/ |
| Air Net Services Ltd | 62 St Philips Road, Keyingham, Hull HU12 9TD | 0800 916 8570 | |
| Air Telecom UK Ltd | Air Telecom UK Ltd, Avon House, 435 Stratford Road, Solihull B90 4AA | 08447 703804 | |
| Airangel Ltd | Unit A, The Beacons, Birchwood, Cheshire WA3 6GP | 0844 974 4006 | |
| Airevalley Solutions Ltd | 16 - 18 Devonshire Street, Keighley BD21 2DG | 01535 279135 | |
| Airmart Ltd | 32 Shoreditch High Street, London E1 6PG | 020 7247 0101 | |
| Airphone Telecom Solutions Ltd | Number One Forder Way, Cygnet Park, The Hamptons, Peteborough PE7 8GX | 0844 967 8888 | |
| Air-Rite Systems (UK) Ltd | 8 Friday Street, Minehead TA24 5UA | 01643 707381 | |
| Air-Talk Ltd | Kemp House, 152-160 City Road, London EC1V 2NX | 03300883352 | |
| Airtime Solutions | https://www.airtimesolutions.co.uk/ | ||
| Airwave Solutions Ltd | Charter Court, 50 Windsor Road, Slough SL1 2EJ | 0800 011 3399 | https://www.airwavesolutions.co.uk/ |
| Airx Technologies Ltd | 16 St Martin Le Grand, London, London EC1A 4EU | 07827625943 | |
| AJ Business Solutions Ltd | 16 Browning Street, Stafford ST16 3AX | 08707 518 900 | |
| AJ Hill Ltd | Unit A7, Imperial Business Park, West Mill, Gravesend DA110DL | 01474559078 | |
| AJ Systems Ltd | Moorgate Crofts, Rotherham S60 2DH | 08450941161 | |
| AJ Technology Ltd | Unit 844 Birchwood Boulevard, Birchwood, Warringotn WA3 7QZ | 01925 931140 | |
| AJ225 Media Ltd | First Floor, 108 Balmoral Road, Gillingham ME7 4QE | 08000437225 | |
| AJP IT Services | International House, Cray Avenue, Orpington, Kent BR5 3RS | 01689 422 522 | |
| AK Comms Ltd | 6 Hamels Park Barns, Hamels Park, Hamels Lane, Buntingford SG9 9NE | 0844 847 4447 | |
| AK Computer Services Ltd | 1st Floor Bank House, Bank Street, Bishops Waltham SO32 1GP | 01489-897760 | |
| AK Connections Ltd | C/O Stafford and Co, 2nd Floor Nelson Mill, Gaskell Street, Bolton BL1 2QE | 08444 128533 | |
| AKA Internet Ltd | PO Box 1195, Sanhurst, Berkshire GU47 7DD | 01344 778 645 | |
| AKAL Computer Systems Ltd | AKAL House, 54a Longthornton Road, London SW16 5QD | 020 8765 1115 | |
| Akita Systems Ltd | Unit 5, Chaucer Business Park, Watery Lane, Kemsing TN15 6PL | 01732 762675 | |
| Alamo Business Systems Ltd | Alamo House, Sessions House Yard, Pontefract WF8 1BN | 0845 500 2050 | |
| Albacore Systems Ltd | The Mill Yard, Nursling Street, Southampton SO16 0AJ | 023 8073 7100 | |
| Albion Business Ltd | 9 Howard Place, Shelton, Staffordshire ST1 4NN | 01782 269494 | |
| Albion Business Computers Ltd | Unit 3, Ashwyn Business Centre, Burgess Hill, West Sussex RH15 8QY | 01444 871 200 | |
| Albion Computers Plc | 112 Strand, London WC2R 0AG | 020 7212 9090 | |
| Alchemist Technologies Ltd | Alchemist House, Brownrigg Loaning, Dumfries DG1 3JU | 01387 269 888 | |
| Alchemy Systems International Ltd | Alchemy House, Band Lane, Egham TW20 9LN | 01784 223100 | |
| Alchemy79 Ltd | 10 woodlands Drive, Beverley HU17 8BZ | 01482 772169 | |
| Alcom Enterprises Ltd | 84 The Broadway, Chesham, Bucks HP5 1EG | 01494 784 784 | |
| AldenWeb | 64, Campernell, Close, Brightlingsea CO7 0TA | 07747845783 | |
| Alertacall Ltd | Pit Farm Farmhouse, Haggs Lane, Cartmel, Grange-Over-Sands LA11 6HE | 0845 094 5201 | |
| Alex Polglase | 7 Fore Street, Calstock PL18 9RN | 07545 872667 | |
| Alexsys Communications Ltd | The Coach House, Manor Farm, Chewton Mendip, Radstock BA3 4LL | 01761 241695 | |
| Alfatronix | https://alfatronix.com/ | ||
| Alfred Ashley Group Ltd | (Business Phone Systems), 38 High Street, Northwood, Middlesex HA6 1BN | 08708 711 003 | https://www.alfred-ashley.co.uk/ |
| Alfred Ashley Group Ltd | (Business Phone Systems) 38 High Street Northwood Middlesex HA6 1BN | 08708 711 003 | |
| Alfs Tech Ltd | 18 Heol Twyn Du, Merthyr Tydfil CF48 1LU | 01685330001 | |
| ALITE SYSTEMS | 19-21 NURSERY ST, KILMARNOCK, AYRSHIRE KA1 1RQ | 07850793500 | |
| Alka IT Services Ltd | 36 Derby Road, Borrowash, Derby DE723HA | 01332548550 | |
| All Communications | 1 Ashley Road, Altrincham, Cheshire WA14 2DT | 0161 257 3595 | |
| All Networks Ltd | 12 The Sanctuary, Manchester M155TR | 07780686756 | |
| Allandale IT | 85 South Knighton Road, Leicester LE2 3LS | 07977 217196 | |
| Allcooper Ltd | Connect Division, 7 Hucclecote Road, Gloucester GL3 3TQ | 01452 565 758 | |
| Allen Computer Services Ltd | 27 South Street, Crewkerne TA18 8DA | 01460298036 | |
| Allenwood Enterprises Ltd | Bourne House, Milbourne Street, Carlisle, Cumbria CA2 5XF | 01228 635554 | |
| Alliance Business Communications Ltd | 2 Excahnge House, Thomas Way, Lakesview International Business Park, Canterbury CT3 4NH | 08448 878 878 | |
| Alliance Communication Solution Ltd | Milton Heath House, Westcroft Road, Dorking, Surrey RH4 3NB | 0870 770 7370 | |
| Alliance Communications Ltd | Kestrel Court, Harbour Road, Portishead BS20 7AN | 0870 300 2022 | https://www.alliancecoms.com/ |
| Alliance Netserve Ltd | Innovation House, Innovation Way, Sandwich CT13 9FF | 01227643001 | |
| Alliance Solutions Ltd | 5 Viewpoint Office Village, Babbage Road, Stevenage SG1 2EQ | 0800 292 2100 | |
| Alliance Strategies Ltd | 25a Clewer Fields, Windsor SL4 5BW | 03300883200 | |
| Alliance Systems Ltd | 5 Westbury Mews, Westbury-on-Trym, Bristol BS9 3QA | 0117 9898110 | |
| Alltek Solutions Ltd | 3 St Andrews Hall, Broadway, Shifnal TF11 8AZ | 01952 463727 | |
| Allware Systems Ltd | 30 The Street, Capel, Surrey RH5 5LE | 01306 711625 | |
| Almada Ltd | 120 Carstairs Street, Strathclyde Business Centre, Dalmarnock, Glasgow G40 4JD | 07970211788 | |
| Alnitak GmbH | Friedrichstraße 78, 10117 Berlin, Germany | +49 30 223 850 50 | https://dialogagroup.com/en/ |
| Alnwick Computerware | Market Place, Alnwick NE661HS | 01665604816 | https://www.alncom.co.uk/ |
| Aloha Telecommunications Ltd | The GTI Suite, Ty Mentre, Navigation Park, Aberycnon CF45 4SN | 0845 031 0200 | https://alohatelecom.co.uk/ |
| Alpha Business Communications Ltd | Network Centre, High Carr Business Park, Newcastle-Under-Lyme, Staffordshire ST5 7XE | 01782 576 000 | |
| Alpha Internet Ltd | 8 Rose Tree Meadow, Northwich CW9 7PA | 0161 399 0489 | |
| Alpha Omega Computers Ltd | Batley Business Park, Grange Road, Batley WF17 6ER | 0843 453 2820 | |
| Alpha Scan Computers Ltd | Unit 5 Brickfield Trading Estate, Brickfield Lane, Chandlers Ford, Southampton SO53 4DR | 02380253008 | |
| Alpha Technology Systems LTD | Unit 40 Metcalfe Road,, Woodstock Way,, Skippers Lane Ind Estate, Middlesbrough TS6 6PT | 01642 309767 | |
| Alpha Telecommunications & Services Ltd | 28 Ridsdale Close, Salford Priors, Nr Evesham, Worcestershire WR11 8XA | 07919180609 | |
| Alphatalk Ltd | Digbeth Court, 162-164 High Street, Deritend, Birmingham B12 0LD | 020 7177 5000 | https://alphatalk.com/ |
| Alsi Consulting Ltd | Communications House, 26 York St, London W1U 6PZ | 0845 8676586 | |
| Alternative Comms Ltd | Acer Court, North Leigh Business Park, Nursery Road, North Leigh, Witney, Oxon OX29 6SW | 01993 880 720 | |
| Alternative Enterprises Ltd | Avocet House, Trinity Park, Trinity Way, London E4 8TD | 02084984300 | |
| Alternatum Retained Services Ltd | G19 Waterfront Studios, 1 Dock Road, London E16 1AG | 08713157570 | |
| Alternit One Ltd | 14 Cullum Street, London EC3M 7JJ | 02070688999 | |
| Altiatech Ltd | 9, Devonshire Mews, London, London W4 2HA | 08008491522 | |
| Alto Comms Ltd | 317 GOLDEN HILL, LEYLAND, PRESTON PR252YJ | 01772558868 | |
| Alt-Technologies Ltd | 4 Malvern Drive, Bowdon, Altrincham WA14 4NQ | 07485292347 | |
| AM CSS Ltd | RM 41, The Mansion,, Wrest Park, Silsoe MK45 4HR | 08458381670 | |
| AM Networking Ltd | 12 Wickford Street, London E1 5QN | 02070997753 | |
| Ama Business Communications Ltd | 130 Old Street, London EC1V 9BD | 02037948840 | |
| AMA Business Systems Ltd | The Old Tabernacle, Palmyra Road, Bedminster, Bristol BS3 3JQ | 0117 923 1133 | |
| amatis Networks Ltd | 58 Portman Road, Reading RG30 1EA | 01183219944 | |
| Amber Computing & IT Services Ltd | North Wing Officw, Deeside Activity Park, Dess, Aboyne, Aberdeenshire AB34 5BD | 01224 676 945 | |
| Amber Green IT LTD | Chambers Business Centre, Chapel Road, Oldham OL8 4QQ | 01457 597 597 | |
| Amberworks Ltd | 1-5 The Downs, Altrincham, Cheshire WA14 2QD | 0161 929 6617 | |
| Ambient Computer Services Ltd | Unit 2, Twelvetrees Business Park, Twelvetrees Crescent, London E3 3JQ | 0207 537 7080 | |
| Amcall Communications Ltd | |||
| Amcomp Ltd | 9 Boltons Close, Brackley, Barns Green, Northants NN13 6ND | 0845 1292 911 | |
| AMD Environmental Ltd | Design House, 33 Banstead Road, Caterham CR3 5QG | 01883347829 | |
| Amelix Ltd | 67 John Wilson Business Park, Whitstable CT53QT | 01227281333 | |
| Amelix Telecom | Amelix House, 8 City Business Park, Marshwood Close, Canterbury CT1 1DX | 0870 063 2010 | https://amelixtelecom.co.uk/ |
| Ameris Ltd | 8-12 Camden High Street, London NW1 0JH | 020 7387 0473 | |
| Amica Business Solutions Ltd | Unit 6, 116 Putney Bridge Road, Putney SW15 2NQ | 020 8099 3122 | |
| Amica Solutions | https://amicasolutions.co.uk/ | ||
| Amica Technology Ltd | 3 Strides Lane, Ringwood BH24 1ED | 01425 600066 | |
| Amicus Networks Ltd | Regency House, 61a Walton Street, Walton-on-the-Hill, Surrey KT20 7RZ | 01737 833 334 | |
| Amillan Ltd | Connection House, 3 The Parkway Centre, Heneage Street, Birmingham | 0121 260 8100 | |
| Amity IT Services Ltd | 2 Lower Barn Road, Croydon CR8 1HQ | ||
| AMJ IT Ltd | Bridge Road, EPPS Building, Ashford, Kent TN23 1BB | 01233 663 205 | |
| AML (Midlands) Ltd | Suite 3, Charlton House, Raynesway, Derby DE21 7BF | 01332650009 | |
| Aml IT Services Ltd | 182 LOWER KIRKGATE, WAKEFIELD WF1 1UD | 01924387168 | |
| Ammnet Ltd | Ammnet House, 3 Lichfield Road, Burntwood WS7 0HQ | 01543305133 | |
| AMP Information Systems Ltd | Riverside, Old Lancaster Rd, Catterall, Preston PR3 0HN | 01995 600 700 | |
| Ampito Ltd | Portanor House, Manor Court, Manor Royal, Crawley, West Sussex RH10 9PY | 0870 352 1004 | |
| Amplefuture | 22 Stephenson Way, London E14 2HD | http://www.amplefuture.com/ | |
| Amplified IT Ltd | 130 Old Street, London EC1V 9BD | 02074382025 | |
| Amshire Solutions Ltd | Amshire House, 4 Oak Green, Stanley Green Business Park, Cheadle Hulme SK8 6QL | 0330 2020 340 | |
| Amvia Ltd | Aizlewoods Mill, Nursery Street, Sheffield S3 8GG | 0333 733 8050 | |
| Ancar B Technologies Ltd | Unit 16, Victoria Spring Business Park, Wakefield Road, Livesedge, West Yorkshire WF15 6BE | 01924 511118 | |
| Anchor IT Solutions Ltd | The New Bungalow, Cartgate Preesall, Poulton-le-Fylde, Lancashire FY6 0NP | 01253 807783 | |
| AnDa Communications Ltd | 7 The Triangle, Gloucester GL2 0NE | 07474245761 | |
| Andreas Menzies Associates | 12a Mill Street, Oakham, Rutland LE15 6EA | 01572 770653 | |
| Andrew Gethin | Suite 36 Imex Business Centre, Shobnall Road, Burton on Trent DE142AU | 01283531613 | |
| Andrew Woollard | 2 Waterside, Peartree Bridge, Milton Keynes MK6 3DG | 01908696968 | |
| Andrews & Arnold Ltd | Enterprise Court, Downmill Road, Bracknell RG12 1QS | 01344 400000 | https://www.aa.net.uk/ |
| Andrews & Arnold (Numbers) Ltd | Enterprise Court, Downmill Road, Bracknell RG12 1QS | 01344 400000 | https://www.aa.net.uk/ |
| Andrews Computer Services Ltd | Nash House, London Road, Apsley, Hemel Hempstead HP3 9SR | 01442 241 200 | |
| Andy's Technical Services Ltd | The Old Workshop, Station Road, Nailsworth GL6 0AJ | 01453 835791 | |
| Angel Energy Supplies Ltd | 100 Rooley Avenue, Bradford BD6 1DB | 01274 758 010 | |
| Angel IT Systems Ltd | 38 Churchill Park, Colwick, Nottingham NG4 2HF | 0115 9517055 | |
| Anglia Computer Solutions Business Ltd | 7A Montague Road, Sheringham NR26 8LN | 01263340690 | |
| Anglia IT Solutions | 35 Turbine Way, Swaffham PE377XD | 01760725555 | |
| Anglia Telecom Centres PLC | 166 Hanford Road, Ipswitch, Suffolk IP1 2BH | ||
| Anglian Communications | 2 Portal Avenue, Corsham SN13 0LQ | 01493 266266 | |
| Anglian Internet Ltd | Technology House, Roundtree Way, Norwich NR7 8SH | 01603 400200 | |
| Anim8te Ltd | School house, Selborne Road, Croydon, London CR0 5JQ | 02080993777 | |
| Animated Networks Ltd | Paragon House, Lord Street South, Leigh, Lancashire WN7 1YB | 01942 770 070 | |
| Annecto Telecom | WestWorld, West Gate, W Gate, London W5 1DT | 020 7077 8800 | https://www.annecto.com/ |
| Annodata Business Communications | |||
| Anova London Ltd | 33-35 Daws Lane, London NW7 4SD | +44 (0) 203 773 1333 | |
| Anova Technology Ltd | 27 Westwood Road, Birmingham B73 6UP | 01213539170 | |
| ANS Group LTD | Synergy House, Manchester M15 6SY | 01612271000 | |
| ANT Telecoms Ltd | Swift House, Peregrine Business Park, Gomm Road, High Wycombe, Buckinghamshire HP13 7DL | 01494 833 100 | |
| Antar Information Technology Ltd | 78 Cross Street, Sale, Cheshire M33 7AN | 0161 973 3079 | |
| Antechs Business Support Ltd | First Floor, 27 Edison Road, Cambridgeshire, St Ives PE27 3LF | 03333443332 | |
| antennaPRO | https://www.procomuk.co.uk/ | ||
| Antheus Telecom Ltd | Unit 6, Salisbury House, Salisbury Road, Newton Abbot TQ12 2DF | 01626 832 423 | https://antheus.co.uk/ |
| Anthian Computer Systems Ltd | 24 Brookmans Close, 24 Brookmans Close, Upminster RM14 1SJ | 01277650645 | |
| Anvil Mobile Ltd | Unit B, Blois Meadown Business Centre, Steeple Bumpstead, Suffolk CB9 7BN | 01799 252 000 | |
| Anyit Ltd | 9 Station Yard, Needham Market IP6 8AS | 01449 798 088 | |
| Anywhere Cloud Ltd | 63 Waddington Road, Clitheroe BB7 2HN | 03333230230 | |
| Anywhere Sim Ltd | Grindleton Business Centre, Grindleton, Clitheroe, Lancs BB7 4DH | 01200 400010 | https://anywheresimbusiness.com/ |
| AOL (UK) Ltd | Shropshire House, 11-20 Capper Street, London WC1E 6JA | https://www.aol.co.uk/ | |
| AOL Europe Services SARL | IDA Business Park, Cork Road, Waterford | 0800 376 5432 | |
| Aonix (UK) Ltd | Select House, Popes Lane, Oldbury, West Midlands B69 4PA | ||
| APB Mobile Installations | https://www.apb-ltd.co.uk/ | ||
| APC Communications Solutions | https://www.apcsolutionsuk.com/ | ||
| aPC Networx Ltd | Bakewell Walk, Gamelsey, Glossop SK13 0AX | 01457 339100 | |
| APComms Ltd | Larchwood, Westfields,, Hazler Road, Church Stretton, Shropshire SY6 7AF | 0845 4740379 | |
| Apex Computer Services Wales Ltd | Unit 2, St Michaels Court, Church Street, Newport NP20 2BY | 01633215123 | |
| Apex Computing Services Ltd | 2nd Floor, Laser House, Salford M50 3XW | 01612330099 | |
| Apex Networks Ltd | 2nd Floor, Dundee House, 23-26 Albion Place, Ramsgate, Kent CT11 8HQ | 0871 522 3141 | |
| Apex Radio Systems | https://www.apexradio.co.uk/ | ||
| Apex Systems Consultancy Ltd | 6A Station Road, London SE25 5AJ | 020 8771 7711 | |
| API Infrastructure Ltd | 2nd Floor Astra House, Christy Way, Basildon, Essex SS15 6TQ | 020 7183 6359 | |
| API Telecom Ltd | Oxford House Bell Business Park, Smeaton Close Aylesbury, Bucks HP19 8JR | ||
| APNET Ltd | 103 Palace Road, Bromley, Kent BR1 3JX | 020 8315 5820 | |
| Apogee Corporation | https://www.apogeecorp.com/ | ||
| Apollo I.T. Ltd | Unit 5, Collingwood Road, Townstal Industrial Estate, Dartmouth TQ6 9JY | 01803839480 | |
| Apollo Technology Solutions Ltd | 6 The Street, Radstock, Bath BA3 3PL | 01761347198 | |
| Appcaption Ltd | 71-75, Shelton Street, Shelton Street, London WC2H 9JQ | 07943550553 | |
| Apple Group Holdings Ltd | Building 397 Aviation Park West, Bournemouth International Airport, Christchurch BH23 6NW | 08081376312 | |
| Apple Telecom Europe | |||
| Applecheck (Essex) Ltd | Summer House, 10 Park Terrace, Westcliff on Sea SS07PH | 01702680005 | |
| Applescot Ltd | 28 Church Street, Inverness IV1 1EH | 01463 896777 | |
| Applied Interactive Media Ltd | Goodyear Business Park, Mawdesley L40 2QP | 01704823700 | |
| Applied Network Computing Ltd | 71 Church Street, Audley, Stoke-on-Trent, Staffs ST7 8EE | 01782 478 658 | |
| Applied Voice and Data Solutions | Cathedral House, 23/31 Waring Street, Belfast BT1 2DX | 028 9043 6618 | |
| Apponotec Ltd | 16 Philip Avenue, Swanley, Kent BR8 8HG | 0845 388 4763 | |
| Approach IT | Suite 9, Unit 1B, Cragg Vale HX7 5TT | 03452221510 | |
| Apptel Ltd | Unit 4, Yarnbury Court, Wylye, Warminster BA12 0QE | 01985851297 | |
| APR Telecoms (Maintenance) Ltd | Appointment House, Philip Ford Way, Silfield Road, Wymondham NR18 9AQ | 01953713333 | http://www.aprtelecoms.co.uk/ |
| Aptanet Ltd | 39 The Thicket, Widley, Waterlooville PO7 5JL | 02392380001 | |
| Aptum Technologies (UK) Ltd | 30-31 The Mall, Town Quay, Southampton SO14 3TG | 014168403485 | |
| AQLl Wholesale Ltd | 13-15 Hunslet Road, Leeds LS10 1JQ | 0113 320 3040 | https://aql.com/ |
| Aqua IT Support Ltd | 14 Cartleburn Gardens, Grangewood, Kilwinning KA13 7ND | 0141 5302007 | |
| Aquila Computer Systems Ltd | 27-28 King Street, Weymouth DT4 7BQ | 01305 303030 | |
| Aquilative Technologies Ltd | 83 Essex Road, Leyton, London E10 6EG | 020 3432 3257 | |
| Aquiss Ltd | PO Box 4710, Bridgnorth, Shropshire WV16 9AN | 01746 708090 | https://www.aquiss.net/ |
| Ar It Support Ltd | 21 Great Oaks Park, Rogerstone, Newport, Newport NP109AT | 01633891261 | |
| Everything Comms Ltd | 65 Gibfield Park Avenue, Atherton M46 0SY | 03301224250 | |
| Arbury Systems Ltd | Wellington House, Birmingham International Park, Solihull B37 7HB | 01215163300 | |
| Arbury UK Ltd | 123 New Zealand Avenue, Walton-on-Thames KT12 1QA | 0330 002 0222 | |
| ARC Computer Systems Ltd | 18 Elmwood Cl, Wakefield WF2 6LP | 07766477733 | |
| arc IT Solutions Ltd | Thornton House, Cemetery Road, Stoke on Trent, Staffordshire ST4 2DL | 01782 202 529 | |
| Arc Telco Ltd | 20-22, wenlock road, london, london N1 7GU | 07875141948 | |
| Arcade UK Ltd | Arcade House, Kym Road, Bicton Industrial Park, Kimbolton PE28 0LW | ||
| Arcom IT Ltd | Export House, Cawsey Way, Woking GU21 6QX | 01483 505055 | |
| Arcus Technology Ltd | 1 Great Cliffe Court, Great Cliffe Road, Dodworth, Barnsley, South Yorkshire S75 3SP | 01226 900111 | |
| Ardencom Ltd | Wellington House, Starley Way, Birmingham Int. Park, Solihull B37 7HE | 0870 264 6465 | |
| Ardent Group 365 Ltd | Unit 6, Herne Business Park, Herne Bay, Kent CT6 7FE | 01227 774 850 | |
| Argo Facilities Ltd | Floor 5, Green Lane, Bridgtown, Cannock WS11 0NH | 01543231010 | |
| Aria Communications Ltd | 12 Helens Gate, Thomas Rochford Way, Cheshunt EN8 0SQ | 01992470057 | |
| Arid Systems Ltd | 34 Victoria Road, Kirkcaldy KY1 1DR | 01592858042 | |
| Ark ICT Solutions Ltd | Unit 6 Venture Court, Pinchbeck, Spalding PE11 3BG | 01775 720252 | |
| Arkadin UK Ltd | 26-28 Hammersmith Grove, LONDON W6 7JA | 020 8742 6398 | |
| ARL Mobile | http://www.arlmobile.com/ | ||
| ARM IT Solutions Ltd | Lancaster Court, 8 Barnes Wallis Road, Segensworth, Fareham PO15 5TU | 0800 080 5005 | |
| Armco IT Consulting Ltd | 10 The Maltings, 7 Castlegate, Malton, North Yorkshire YO17 7DP | 01653 699513 | |
| Armstrong Bell Ltd | Office 13, Greenbox, Westonhall Road, Stoke Prior, Bromsgrove B60 4AL | 0845 050 5757 | https://www.armstrongbell.co.uk/ |
| Arotec Ltd | 1 Heather Gardens, Waltham Abbey EN9 3YF | 03302020223 | |
| ARP Electrical Ltd | 21 Glynswood, High Wycombe HP13 5QL | 01494 300100 | |
| Arqiva Ltd | Crawley Court, Winchester, Hampshire SO21 2QA | 01962 822 161 | |
| Arrandigital LLP | The Old Hay Barn, Park Terrace, Lamlash, Isle of Arran KA27 8NB | 01770460024 | |
| Arrow Business Communications Ltd | 1st Floor, The Wharf, Abbey Mill Business Park, Lower Eashing, Godalming GU7 2QN | 0333 240 9880 | https://arrowcommunications.co.uk |
| Arrow Comms Ltd | Unit 2 Gosforth Park Avenue, Longbenton NE12 8EG | 08081643040 | |
| Arrow Computing Solutions Ltd | The Glebe House, Cockpen, Bonnyrigg, Edinburgh EH19 3HT | 01315168520 | |
| Arrow Converged Solutions Ltd | Stourside Place, Station Road, Ashford, Kent TN23 1PP | 0808 141 1010 | |
| Arrow IT Solutions Ltd | Fort Dunlop, Fort Parkway, Birmingham B24 9FE | 0121 295 1305 | |
| Artemis Communications Ltd | Artemis Business Centre, The Old Great North Road, Ferrybridge, West Yorkshire WF11 8PG | 01977 679 044 | |
| Artemis Internet Marketing Ltd | Danworth Farm, Cuckfield Road, Haywards Heath, Hurstpierpoint BN69GL | 01444645018 | |
| Artemis Network Services Ltd | 147a High Street, Walthamcross EN8 7AP | 02084490651 | |
| Arubic Communications Ltd | Lady Lovell Cottage, Beech Grove, Fulbrook, Burford OX18 4DE | 01993764324 | |
| Arun Tech Support Ltd | Game Larder, London Road, Arundel BN18 9AU | 01903 357002 | |
| Arwisp Ltd | 37 Saddleton Road, Whitstable, Kent CT5 4JQ | 07546867805 | |
| Arxsis Ltd | 203 West Street, Fareham PO16 0EN | 02078469560 | |
| Asa Grp Ltd | Mill Mead Business Centre, Mill Mead Road, London N17 9QU | 03333444334 | |
| Ascent Global Services Ltd | 7-10 Adam Street, London WC2N 6AA | 020 7871 1590 | |
| ASDA Stores Ltd | Asda House, Great Wilson Street, Leeds LS11 5AD | 0113 243 5435 | https://www.asda.com/ |
| Ash Telecommunications Ltd | 14a The Broadway, Woodbridge Road, Guildford, Surrey GU1 1DY | 0844 846 7707 | |
| Ashbury SatCom | https://www.ashburysatcom.co.uk/ | ||
| Ashdown Solutions Ltd | 22 Garden Wood Road, East Grinstead RH19 1NL | 01342 318 022 | |
| Ashgill Communications & Media | 4 Mauldslie Place, Ashgill ML9 3BE | 0141 4321 274 | |
| Ashgoal Ltd | Unit C, Queens Road, Barnet, Herts EN5 4DJ | 020 8275 5100 | |
| Ashleigh Consulting | Ashleigh, Hillfarrance, Taunton TA4 1AW | 01823461491 | |
| Ashley-Clarke Consultants Ltd | 9 Endcliffe Grove Avenue, Sheffield S10 3EJ | 07469 118203 | |
| Ashtag Cloud LTD | 66 Canterbury Venue, London IG1 3NG | 02077250816 | |
| Ashton Office Supplies Ltd | 204-208 Stockport Road, Ashton-Under-Lyne, Lancashire OL7 0NS | 0161 330 2348 | |
| Ask Global Solutions Ltd | 71-75 SHELTON STREET, Covent Garden, LONDON WC2H 9JQ | 01494 727546 | |
| Ask IT Solutions Ltd | 32 Church Street, Willingham, Cambridge, Cambridgeshire CB24 5HT | 01223606600 | |
| Ask4 Ltd | Devonshire Green House, 14 Fitzwilliam Street, Sheffield S1 4JL | 01143033200 | |
| Asl Holdings Ltd | The Oaks, Spring Hill office PK, Harborough Road, Pitsford NN6 9AA | 0+441604883880 | |
| Aspect Business Communications Ltd | Unit 28 Brynmenyn Business Centre, St Theodores Way, Bridgend CF32 9TZ | 08458 277 328 | |
| Aspect International Telecoms Ltd | Claredon House, High Street, Stockbridge SO20 6EY | 0845 634 5566 | |
| Aspect IT Ltd | Unit 4 County End Business Centre, Jackson Street, Springhead, Oldham OL4 4TZ | 0161 241 9050 | |
| Aspect Managed Services Ltd | 3rd Floor, The Bone Mill, Charfield GL128ES | ||
| Aspen Solutions Ltd | 2 Napier Way, Ward Park, Cumbernauld, Glasgow G68 0EH | 01236786111 | |
| Aspen Technologies Ltd | 16 The Office Village, North Road, Loughborough, Leics LE11 1QJ | 01509 212 202 | |
| Aspire 4 Technology Group Ltd | Dunham House, Brooke Court, Lower Meadow road, Handforth, Stockport SK9 3ND | 03333 443324 | |
| Aspire Consulting Ltd | 19-20 Amber Business Village, Amber Close, Tamworth B77 4RP | 0330 313 0243 | |
| Aspire IT Services Ltd | 8 Albert Rd, Cheadle Hulme, Stockport SK8 5DA | 01616695522 | |
| Aspire Net Solutions Ltd | 9 Thrasher Road, Aylesbury, Buckinghamshire HP19 0LP | 01296 748 583 | |
| Aspire Technology Solutions Ltd | Heworth Hall, Shields Road, Gateshead NE10 0UX | 0845 6439200 | https://www.aspirets.com/ |
| Assembly Channel Services Ltd | Chancery House, 53-64 Chancery Lane, London WC2A 1QU | 0844 243 0222 | |
| Assembly Global Networks Ltd | 45 Conduit Street, London W1S 2YN | 0844 871 8430 | |
| Assembly Managed Services ltd | Chancery House, London WC2A 1QU | 02037956880 | |
| Assign IT Ltd | Unit 17, Brick Knoll Park, Ashley Road Industrial Estate, St Albans, Herts AL1 5UG | 01727 843888 | https://www.assign-it.co.uk/ |
| Assimilated Communications Ltd | Eleanors Cross, Dunstable, Bedfordshire LU6 1SU | 0845 468 1212 | |
| Assist Networks Tin Ltd | Unit 20 Applins Park, Farrington, Blandford Forum DT11 8RA | 01258808332 | |
| Associated Networks (UK) Ltd | Unit 20 Bumpers Enterprise Centre, Vincients Road, Chippenham SN14 6QA | 02071270500 | |
| Assume Nothing Ltd | 52-54 Shannon Drive, Walsall WS8 7LA | 0872 048 4800 | |
| Assuract Ltd | 258 Belsize Road, 26 York Road, London NW6 4BT | 0333 240 0621 | |
| Assured Communications (Leicester) Ltd | Park House, 37 Clarence Street, Leicester LE1 3DW | 01509 348 010 | |
| Assured Telecoms Ltd | 43 Great Eastern Road, Buckie AB56 1SR | 08003168268 | |
| AST Connections | https://www.theastgroup.com/ | ||
| AST Wales | Perch Buildings, 9 Mount Stuart Sq, Cardiff CF10 5EE | 029 2002 0001 | |
| Astec Computing (UK) Ltd | Astec House, Sedlescombe Road South, St Leonards on Sea, East Sussex TN38 0TA | 01424 460 721 | |
| Aston Barclay UK Ltd | 38 Billing Road, Northampton NN1 5DQ | 01604 603 066 | |
| Aston Berkeley Systems | Berkeley, Aston Berkeley House, Lymm, Warrington, Cheshire WA13 9AR | 01925 751100 | |
| Astrix Integrated Systems Ltd | Venture House, Navigation Park, Abercynon CF45 4SN | 0845 22 66 572 | |
| Astro Communications Ltd | 41 High Street, Swanley, Kent BR8 8AE | 01322 610 111 | |
| Astrofox IT Consultancy Ltd | Town Hall Chambers, High Street East, Wallsend, Newcastle Upon Tyne NE28 7AT | 0800 098 871 | |
| Astute Communications Ltd | 323 Wilmslow Road, Manchester M14 6NW | 0844 4068 714 | |
| Astutium Ltd | 1st Floor, Number One Poultry, London EC2R 8JR | 020 3475 2555 | |
| As-Voip Communications | 20 Fletcher Gate, Nottingham NG1 2FZ | 01159 838795 | |
| Asygma Ltd | 71-75, Shelton Street, Covent Garden, London WC2H 9JQ | 02070912954 | |
| Asylia Ltd | 64 Hillsbrough Road, Lisburn, County Antrim BT28 1JJ | 0800 840 2039 | |
| AT On Line Computing Ltd | 4th Floor 33 Cannon St, London EC4M 5SB | 02074541254 | |
| AT Telecommunications Ltd | 154 Nightingale, London N8 9PT | 02030962222 | |
| AT Telecoms Ltd | Heather Park Drive, Heather Park Parade, Wembley, Middlesex HA0 1SL | 020 8902 2773 | |
| AT&T Global Network Services (UK) B.V. | AT&T Global Network Services (UK) B.V, Highfield House, Headless Cross Drive, Redditch, Worcestershire B97 5EQ | 0118 916 8608 | |
| ATB Computing Services Ltd | 1st Floor, 1 Invicta House, Invicta Park, Sandpit Road, Dartford, Kent DA1 5BU | 0845 634 6261 | |
| Ateb Ltd | Hengwm, Rhayader, Powys LD6 5LD | 01597 811 822 | |
| A-Tech Data Solutions Ltd | Unit 2, Ermine Point Business Centre, Westmill Road, Ware SG12 0EF | 0844 561 1772 | |
| Atech Network Services Ltd | Unit 5 Rotherbrook Court, Bedford Road, Petersfield, Hampshire GU32 3QG | 0844 854 0054 | |
| A-Tech Services Ltd | 37 Spur Hill Ave, Poole, Dorset BH14 9PJ | 01202 255830 | |
| Atech Support Ltd | Unit 9, Treadaway Technical Centre, Treadaway Hill, Loudwater, Bucks HP10 9RS | 01628648777 | |
| Atema Ltd | 1 West End, Gastons Road, Malmesbury SN16 0BD | 01453704299 | |
| ATG-IT Ltd | Unit 3,, Buntsford Hill Business Park, Buntsford Park Road, Bromsgrove B60 3DX | 01527570535 | |
| ATH Ltd | |||
| Athena Telecom Ltd | 33 Wigeon Lane, Walton Cardiff, Tewkesbury GL20 7RS | 0844 332 9955 | |
| Atkins | https://www.atkinsglobal.com/ | ||
| Atlantic Communications Corporation Ltd | Business First Centre, Millennium City Park, Preston PR2 5DB | ||
| Atlantic Data Ltd | Atlantic House, Snowdon Drive, Winterhill, Milton Keynes MK6 1BU | 03333207307 | |
| Atlas Business Group of Companies Ltd | Globe Works, 79 Hosipital Street, Nantwich, Cheshire CW5 5RL | 0333 666 3332 | |
| Atlas Comms LTD | 3 Stamford Road, Corby NN17 3JL | 01536 618199 | |
| Atlas Communications (UK) Ltd | 1 West Bank Close, Harbour Ind Estate, Belfast BT3 9LD | 028 9078 6868 | https://www.atlas-comms.com/ |
| Atlas Communications NI Ltd | 1 West Bank Close, Harbour Industrial Estate, Belfast BT3 9LD | 028 9078 6844 | |
| Atlas Interactive Group Ltd | 47 Welbeck St, London W1G 9XA | 0870 800 8000 | |
| Atmos Technology Ltd | The Mansion, Bletchley Park, Milton Keynes MK3 6EB | 01908889750 | |
| Atom IP Ltd | 3 college place, hampshire, Southampton SO152FB | 03300881012 | |
| Atom IT Solutions Ltd | Unit 1 Coverdale Point, Lower Oakham Way, Mansfield, Nottingham NG18 5BY | 08009078609 | |
| Atomos Networks Ltd | AIREDALE HOUSE 423 KIRKSTALL ROAD, LEEDS LS4 2EW | 0113 323 7711 | |
| Atomstream Ltd | 11 St Michael Street, Malton, North Yorkshire YO17 7LJ | https://www.atomstream.com/ | |
| Atomwide Ltd | 2/3 Ravensquay Business centre, Cray Avenue, Orpington, Kent BR5 4BQ | 01689 814 700 | |
| Atos IT Services Uk Ltd | Mid City Place 71, London WC1V 6EA | 08007833040 | |
| Atrium Telecom Ltd | TOPs Business Centre, 22 Hind Hill Street, Heywood, Lancs OL10 1AQ | 08449803373 | |
| ATS Telecom Ltd | Repton House, Bretby Business Park, Ashby Road, Burtin-Upon-Trent DE15 0YZ | 01283 220 688 | |
| Atsol Ltd | Unit 10, Beta Terrace, West Road, Ransomes Industrial Estate, Ipswich IP3 9FE | 01473760200 | |
| Attaro Ltd | Office 8, The Hollies, Chester Road, Whitchurch SY13 1LZ | 01948759379 | |
| Attend 2 It Ltd | Unit 8, Park Farm Ind. Estate, Ermine Street, Buntingford SG9 9AZ | 01763878086 | |
| Attend IT Ltd | 80 High Street, Brentford TW8 8AE | 020 8626 4485 | |
| Attend 2 It Ltd | Unit 8 Park Farm Ind. Estate Ermine Street Buntingford, SG9 9AZ | 01763878086 | |
| Attivo Business Group Ltd | 190 Dover Drive, Dunfermline KY11 8HB | 0141 370 8165 | |
| Aubury Computer Systems Ltd | York House, 40 York Road, Tewkesbury GL20 5HG | 01684 299 007 | |
| Audent Ltd | 1 Eghams Court, Boston Drive, Bourne End, Buckinghamshire SL8 5YS | 02071939486 | |
| Audio Visual Machines Ltd | 1-3 Old Lodge Place, St Margarets, Twickenham TW1 1RQ | 0845 262 6200 | https://www.avmi.com/ |
| Aujla Business Systems Ltd | 34 Hercules Way, Aerospace Boulevard, Farnborough GU14 6UU | 01252413700 | |
| Aura Technology Ltd | 15-17 Cumberland House, Grosvenor Square, Southampton, Southampton SO14 3TJ | 03333208601 | |
| Auracall Ltd | Britannia House, 960 High Road, London N12 9RY | 020 8497 4622 | https://www.auracall.com/ |
| Aurae Telecom Ltd | Bowmans Cottage, Ower, Southampton SO51 6AE | 07872383963 | |
| Aurora Kendrick James Ltd | 7 Sherwood House, Walderslade Centre, Chatham, Kent ME5 9UD | 01634 673800 | https://aurora.io/ |
| Aurora Networks Ltd | 84-85 Long Lane, London EC1A 9ET | 0870 410 0910 | |
| Aurora Technologies Ltd | Leicester Business Centre, 111 Ross Walk, Leicester LE4 5HH | 0845 009 9099 | |
| Aurora Telecom UK Ltd | Suite D2, The Quadrant, Mercury Court, Chester CH1 4QR | 01244573150 | |
| Aushi Ltd | 17 Summit Close, Edgware, London HA8 6EJ | 07872478247 | |
| Auto Design Systems Ltd | 6 Woodlinken Close, N/A, N/A, Verwood BH31 6BS | 03300881460 | |
| Autodata Products Ltd | The Holywell Centre, 1 Phipp Street, London EC2A 4PS | 020 7749 7949 | |
| Automated Business Systems Ltd | 7 Station Approach, Wendover HP22 6BN | 01296 696700 | |
| Automation Software Ltd | 10 Lower Church Street, Ashby de la Zouch LE65 1AB | 03337330011 | |
| AV Telecoms | 1st Floor, 228 Widdrington Road, Coventry, Warwickshire CV1 4PB | 02476 011435 | |
| Avagio I.T.S LtD | 4A Lansdowne Court, Chippenham SN14 6RZ | 01249654871 | |
| Avalle LLP | Unit 7 Silverdale In Estate, Meadow Road, Worthing BN11 2RZ | 0844 811 9211 | https://www.avalle.co.uk/ |
| Avalon IT Services Ltd | Unit 2 Marine Studios, Burton Lane End, burton waters, LINCOLN LN1 2UA | 03333442482 | |
| Avandda Ltd | 820 Birchwood Boulevard, Birchwood, Warrington WA3 7QZ | 01925 250010 | |
| Avantek Computer Ltd | St Peters Road, ARNESBY LE8 5WJ | 0330 300 3000 | |
| Avanti Broadband | https://www.avantiplc.com/ | ||
| Avaya UK | Avaya House, Cathedral Hill, Guildford GU2 7YL | 01483 308000 | https://www.avaya.com/en/ |
| AVC One Ltd | AVC House, Bessemer Drive, Stevenage, Herts SG1 2DT | 0870 243 0555 | https://www.avcone.net/ |
| Avec Systems Ltd | 27 Mill Street, Bedford MK40 3EU | 08701251300 | |
| Avec Telecom Ltd | Salamander House, 2-10 St. Johns street, Bedford, Beds MK42 0DH | 02036211033 | |
| Avensys Networks Ltd | 180 Attercliffe Road, Sheffield S4 7WZ | 0114 224 3390 | |
| Avenue UK Ltd | 60 Charlotte Road, London EC2A 3QT | 020 7729 2857 | |
| Avian Mobile Ltd | Unit 1 Winkhurst Farm, Coopers Corner, Sevenoaks TN14 6LB | 01732750744 | |
| Avid Computers Ltd | South Suffolk Business Centre, Alexandra Road, Sudbury CO10 2ZX | 01787 881783 | |
| Avie Networks Ltd | Cloudbase Studios, 43 South Walsham Road, Acle, Norwich NR13 3ER | 01603590480 | |
| Avita Tech Ltd | 1 Clock House Road, Beckenham, Kent BR3 4JS | 020 8663 0077 | |
| Avocet Telecom Ltd | Suite 3 Pine Court, 36 Gervis Road, Bournemouth, Dorset BH1 3DH | 01202 789 977 | |
| Avongate Ltd | Sheepcote Farmhouse, Sheepcote Lane, Orpington, Kent BR5 4ET | 01689 890600 | https://www.avongate.com/ |
| Avonline Plc | |||
| AVT Systems (UK) Ltd | 44 Paul Street, London EC2A 4LB | 020 7490 7977 | |
| AW Communication Systems t/as AWCSL | https://www.awcsl.com/ | ||
| Awaken IT Ltd | Market Weighton Business Center, York Road, Market Weighton, York YO433GL | 01904375000 | |
| Awareness Software Ltd | 104 Palmerston Street, Bollington, Macclesfield SK10 5PW | 0845 862 0350 | |
| AWE | https://www.awe.co.uk/ | ||
| Awkcomputers Ltd | 59 Market Street, Westhoughton BL5 3AG | 01942 812 099 | |
| Axe Telecom Ltd | 19-20 Belle Grove Terrace, Newcastle Upon Tyne NE2 4LL | 033 0177 3492 | https://www.axetelecom.co.uk/ |
| Axia Computer Systems Ltd | 111 St Albans Road, Watford, Hertforshire WD17 1UH | 01923 333111 | |
| Axiom Business Systems Ltd | Wardens House, 4 Broad Street, Stamford, Lincolshire PE9 1PB | 01780 484 160 | |
| Axione UK Ltd | Waterloo Centre, Elizabeth House, 39 York Road, London SE1 7NQ | 020 7401 0020 | |
| Axis Telecom Ltd | Suite E, Shirethorn House, Prospect Street, Kingston Upon Hull HU2 8PX | 0844 875 1950 | http://www.axistelecom.co.uk/ |
| Axle Broadband Internet Ltd | 10 Chapel Street, Huddersfield HD4 6HL | 01484 970 862 | |
| Axonex Ltd | Sixth Floor, Eagle Tower, Montpellier Drive, Cheltenham, Gloucestershire GL50 1TA | 01242 535 700 | |
| Axon-IT.com Ltd | Charter House, Charter Way, Macclesfield, Cheshire SK10 2NG | 0845 313 0025 | |
| AY Security | https://www.aysecurity.co.uk/ | ||
| Ayat Solutions Ltd | 331 Paisley Road West, Glasgow G51 1LU | ||
| Ayida Telecom Ltd | BIP Building, Tat Bank Road, Oldbury B69 4NH | 01216614820 | |
| AYJ Ltd | 15 Saltash Road, Swindon, Wilts SN2 2EB | 07785 557772 | |
| Aylesbury Vale Broadband Ltd | The Gateway, Gatehouse Road, Aylesbury HP19 8FF | 01296910221 | |
| Ayo Telecom Ltd | 54 Washington Street, Glasgow G3 8AZ | 01414030072 | |
| Ayrtel Ltd | Suite 2C Tower House, Hale Leys, High Street, Aylesbury HP20 1ST | 01296336466 | https://ayrtel.co.uk/ |
| Azel Ltd | Innovation Warehouse, 1 East Poultry Avenue, London EC1A 9PT | 02032393181 | |
| Azro Ltd | Ashfield Lodge, 12 Torquay Road, Newton Abbot TQ12 1AH | 08458052740 | |
| Aztec Computers Ltd | 5 & 5A The Courtyard, Trident Business Park, Selsey PO20 9DY | 01243 200175 | |
| Aztec Telecom Ltd | Vanguard Suite, Broadcasting House, Newport Road, Middlesbrough TS1 5JA | 01642 919 880 | |
| Aztek Comms Ltd | The Chapel (Offices), Chapel Road, Tuckingmill, Camborne TR14 8QX | 01209712816 | |
| Aztek Computers Ltd | The Chapel Offices, Chapel Road, Tuckingmill, Camborne TR148QX | 01209712816 | |
| Aztek Holdings Ltd | The Chapel (Offices), Chapel Road, Tuckingmill, Camborne TR14 8QX | 01209 712816 | |
| Azure Internet | 42 Hall Lane, Leeds LS18 5JF | 07947672417 | |
| Azzurri Communications Ltd | Azzurri Hous, Walsall Business Park, Walsall Road, Aldridge, West Midlands WS9 0RB | 01922 650111 | |
| B 2 Business Systems Ltd | Armitage House, Thorpe Lower Lane, Robin Hood, Wakefield WF3 3BQ | 03452228282 | |
| B C Computing Ltd | The Studios, Colarado Way, Castleford WF10 4TA | 01977 667777 | |
| B.R. Fleming (Site Services) Ltd | 33-37 South College Street, Aberdeen AB11 6LE | 01224 588 844 | |
| b1Services Ltd | First Floor, 44 East Street, Bromley, Kent BR1 1QW | 020 3301 6920 | |
| B2b Communications Ltd | scottish provident building, 7 Donegall square west, belfast BT127GJ | 02890228401 | |
| B2B IT Ltd | 23 Wigan Road, Ashton-in-Makerfield, Wigan WN4 9AR | 03333660077 | |
| B2B Lead Agency Ltd | Innovation House, Basingview, Basingstoke RG214HG | 0844 870 7256 | |
| B3 IT Consulting Ltd | 3 Fournier House, 8 Tenby Street, Birmingham B1 3AJ | 0121 699 9900 | |
| B4B Telecoms Ltd | Boucher Buisness Studios, Belfast BT12 6QH | 02890748844 | https://www.b4btelecoms.com/ |
| B4RN | https://www.b4rn.org.uk/ | ||
| B4U Telecom | Units 42-44, North City Business Centre, Belfast BT15 2GG | 028 9074 8844 | https://www.b4btelecoms.com/ |
| Bache Consultancy Ltd | Georgia House, Chatham Street, Macclesfield SK11 6ED | 08003760333 | |
| Backbone (UK) | https://www.backbone.uk.com/index.html | ||
| Backbone Connect Ltd | Kings House, 36-37 King Street, London EC2V 8BB | 020 3130 9444 | https://www.backboneconnect.co.uk/ |
| Backbone UK Ltd | 47 Kingsway Place, London EC1R 0LU | 02031309400 | |
| Baglio International Trading Ltd | 20-22 Wenlock Road, London N1 7GU | 07516508097 | |
| Baker Stone Systems Ltd | 20 - 22 Wenlock Road, London N1 7GU | 020 7193 9691 | |
| balsallcommon.net LLP | Suites 1&2, 21 Wilton Road, Balsall Common, West Midlands CV7 7QW | 01676 530 540 | |
| Baltic Broadband Ltd | 321 Mariners House, Norfolk St, Liverpool L1 0BG | 01512791000 | |
| Bamboo Distribution | https://www.bamboodistribution.com/ | ||
| Bamis Tech Solutions Ltd | C/o Rose, Chartered Accountants, Prospect House 121 Bury Old Road, Whitefield, Manchester,, Bolton M45 7AY | 01204 689940 | |
| Band Telecom Ltd | Unit 28 Trade City, Avro Way, Brooklands, Weybridge, Surrey KT13 0VF | 01932 303100 | |
| Bandwidth Technologies Ltd | Bank House, 129 High Street, Needham Market, Ipswich IP6 8DH | 02036566105 | |
| Baniftec Ltd | Farley Edge, Farley Lane, Westerham, Kent TN16 1UB | 01959 564 526 | |
| Banner Business Supplies | o2o House, Bilton Road, Kingsland Business Park, Basingstoke, Hampshire RG24 8LJ | 0845 129 7230 | |
| Barclay Digital Services Ltd | 145-149 Donegall Pass, Belfast BT7 1DT | 02890960365 | |
| Barclay Telecom | 145-149 Donegall Pass, Belfast BT7 1DT | 0845 4504650 | |
| Barcode Communications Inc | 2 Wembury Drive, Torquay TQ2 8DT | 07481949299 | |
| Barefoot Technology Ltd | 2a, Heigham Road, East Ham, london E62JG | 02077025000 | |
| Bargain Deals Direct Ltd | Flat Laubobange, Hill Lane, Kilgetty SA68 0QT | 01834218807 | |
| Barker Telecommunications Ltd | Eagle Street, Bury New Road, Bolton BL2 2BU | 01204 380 002 | https://www.barkertelecoms.co.uk/ |
| Barkers Internet Ltd | Unit 1, Chapleton Lodge, East Winch Road, Blackborough End PE32 1SF | 01760629401 | |
| Barley Group Ltd | White House, Bucks Green, Bedingfield IP23 7LL | 020 3167 1716 | |
| Barritec Ltd | Building 3, Riverside Way, Camberley, Surrey GU15 3YL | 0333 550 0325 | https://www.barritec.com/ |
| Barritel Ltd | Building 3, Riverside Way, Camberley, Surrey GU15 3YL | 0845 388 7744 | https://www.just0845numbers.co.uk/ |
| BarTel | https://www.barkertelecoms.co.uk/ | ||
| Barton Technology Ltd | Trident Court Business Centre, 1 Oakcroft Road, Chessington, Surrey KT9 1BD | 0203 301 0003 | |
| Barton Telecom Services Ltd | Unit 3 Mallard Court, Off Mallard Close, Earls Barton, Northampton NN60GA | 01604 812813 | |
| Base 16 Technology Ltd | Unit 5 The Ash Lane Centre, Worcester RoadWorcester Road, Kidderminster, Worcestershire DY10 1JR | 01562 829 875 | https://www.base16technology.com/ |
| Base Wholesale NW Ltd | Unit 2B, Moorgate Point, Moorgate Road, Liverpool L33 7XW | 01515450808 | |
| BaseComm40 | Unit 2B, Moorgate Point, Moorgate Road, Knowsley, Liverpool L33 7XW | 01515450808 | |
| BaseServ Ltd | Suite 524, 109 Vernon House, Friar Lane, Nottingham NG1 6DQ | 03302207048 | |
| Basic Business Systems Ltd | Brookside road, Ruddington, Nottingham NG11 6AT | 0115 940 5000 | |
| Bates IT Ltd | 4 Flitch Industrial Estate, Chelmsford Road, Great Dunmow, Essex CM6 1XJ | 01371 875522 | |
| Bath & West Technical Services Ltd | Unit 2 Second Avenue, Westfield Trading Estate, Radstock BA3 4BE | 01225311970 | |
| BAU Systems Ltd | Albert Buildings, 49 Queen Victoria Street, London EC4N 4SA | 020 3828 1800 | |
| Bay Telecom Ltd | Suite 18 Henley House, Queensway, Swansea SA5 4DJ | 0844 66 99 111 | |
| Bayt Ltd | 52 Hope Street, Lancaster LA1 3BQ | 0843 557 2450 | |
| Ubiquitous Communication Ltd | Unit 21, Teignbridge Business Centre Cavalier Road, Heathfield Industrial Estate Newton Abbot Devon TQ12 6TZ | 01626 833139 | |
| BazTel Ltd | The Coach House, Mallory Park, Kirkby Mallory, Leicestershire LE9 7QE | 020 3519 8193 | |
| Bbportal Ltd | Kemp House, 160 City Road, London EC1V 2NX | 01234889911 | |
| BC technologies LLP | Holy Loch Marina, Sandbank, Dunoon PA23 8FE | 01369706656 | |
| BCH Digital Ltd | 16A Portland Tower, Portland Street, Manchester M1 3LD | 0844 556 7676 | https://www.bchdigital.com/ |
| BCN Group Ltd | Trident 3, Trident Business Park, Styal Road, Manchester Airport M22 5XB | 03450957000 | |
| BCS Computers Ltd | Woodland Business Park, Torquay TQ2 7AT | 01803 613486 | |
| BDI Systems Ltd | 305 Hook Road, Chessington KT9 1EH | 02083904588 | |
| BDM Voice Ltd | The Priory Centre, Franklynn Road, Haywards Heath, West Sussex RH17 5DS | 0845 373 4100 | |
| BDR Voice & Data Solutions | Caspian House, Timothy's Bridge Road, Stratford-upon-Avon, Warcs CV37 9NR | 0845 313 6020 | https://bdrgroup.co.uk/ |
| Be Communications Ltd | 8 East Kent Avenue, Northfleet DA11 9HU | 02080501563 | |
| BE IP Ltd | West 44, 44-60 Richardshaw Lane, Pudsey, Leeds LS28 7UR | 0843 515 7340 | |
| Be Logical UK Ltd | 132 Lindsell Road, Timperely, Cheshire WA14 5NZ | 0161 928 5157 | |
| Be Smart Broadband Ltd | Steate Place, St Peters Road, Bournemouth, Bournemouth BH1 2LT | 01202064040 | |
| Be Un Ltd | 260 Bath Road, Slough SL1 4DX | 0113 388 1010 | |
| BEA Solutions Ltd | 10a Dragoon House, Hussar Court, Westside View Waterlooville, Hampshire PO7 7SF | 023 9298 8855 | |
| Beacon Broadband Ltd | 1 Buncrana Road, Pennyburn, Derry BT48 7QP | 02871878777 | |
| Beacon IT Ltd | 54 Thorpe Road, Norwich NR1 1RY | 01603905420 | |
| BeaconSeek Ltd | Hithermailes, 212 Mancroft Rd, Aley Green, Luton LU1 4DR | 01582 842717 | |
| Beaming Ltd | Hanover House, Marine Court, St Leonards on Sea, East Sussex TN38 0DX | 0800 082 2868 | https://www.beaming.biz/ |
| Beanstalk Telecom Ltd | 100 High Ash Drive, Leeds LS17 8RE | 0845 130 5211 | |
| Bear Coms Ltd | 16 Farquhar Street, Bengeo, Herford, Hertfordshire SG14 3BP | 07785 298857 | |
| BEC Consultants Ltd | 15 Warren Park Way, Enderby, Leicester LE19 4SA | 0116 2848350 | |
| Be-Connect Ltd | BIZNIZ POINT CROWN HOUSE, HOME GARDENS, Dartford, DARTFORD DA1 1DZ | 02085073333 | |
| Beehive Telecom Ltd | 79 Thomas Street, Manchester M41LQ | 01613001600 | |
| Beeline Broadband Ltd | Brawby Grange, Brawby, Malton YO17 6PZ | 01751 458075 | |
| Beewise Ltd | Ground Floor East, 30-40 Eastcheap, London EC1M 1HD | 07305776850 | |
| Bejawn Ltd | 40 Beresford Road, Kingston upon Thames KT2 6LR | ||
| Belgacom International Carrier Services SA | Rue Lebeau 4, 1000 Brussels, Belgium | +32 2 547 5210 | https://bics.com/ |
| Bell UK communications Ltd | Suite 6 Belmont Business Centre,, 7 Burnett Street, Little Germany, Bradford BD1 5BJ | 01274 405932 | |
| Bellcom Communications Ltd | 199 Godstone Road, Whyteleafe CR3 0EL | 02033930000 | |
| Bellingham Telecommunications Ltd | Unit 7, 2 Exchange Court, London WC2R 0PP | 020 7183 6226 | https://belltel.co.uk/ |
| Bells IT Support LTD | Chislehurst Business Centre, 1 Bromley Lane, Kent BR76LH | 02038839620 | |
| Bellview Comms Ltd | 22 Newlands Woods, Bardolph Avenue, Croydon CR0 9JR | 07734 046654 | |
| Bellview Communications Ltd | 47 Cressex Enterprise Ctr, Lincoln Road, High Wycombe HP12 3RL | 08000 093063 | |
| BeLogical UK | https://www.belogicalltd.com/main/ | ||
| Belt And Road Consultants Ltd | 4 Kirton Close, Hornchurch, ESSEX, Hornchurch RM12 6TU | 07925174250 | |
| Bvrcomm Ltd | Main Street, Marston Lincs NG32 2HH | 01400 251607 | |
| Beme Isp Ltd | 91 boundary st, southport PR8 5EJ | 07909454909 | |
| Benington Ltd | Slapton Hill Farm, Slapton, Northant NN12 8QD | 01327 860864 | |
| Benitech Ltd | 32 Byron Hill Road, Harrow on the Hill, Harrow HA2 0HY | 02071014492 | |
| Bennett Brooks IT Ltd | St George's Court, Winnington Avenue, Northwich CW8 4EE | 0330 055 3660 | |
| Bennett Technology Ltd | Thornleigh, Whitchurch Road, Prees SY133JZ | 07976666671 | |
| Ben's Telecoms | 139 somerfield road, bloxwich, walsall, west-midlands WS32EN | 03330147743 | |
| Bentek Ltd | 28 Foxtail Road, Ransomes Europark, Ipswich IP3 9RT | 01473 271 123 | |
| Bentley Systems UK Ltd | 9th floor 20 Gracechurch Street, london EC3V 0BG | 02078610999 | |
| Bentley Walker | https://www.bentleywalker.com/ | ||
| Berkeley De Vere (EC) Ltd | Falcon House, 7 Oxhill Road, Shirley, Solihull, West Midlands B90 1LR | 0121 624 3434 | |
| Berry Telecom Ltd | Sterling House, Old Sarum, Salisbury, Wiltshire SP4 6EB | 0844 257 8075 | https://www.berrytelecom.co.uk/ |
| BES Telecom Ltd | Parkside Strand, Fleetwood Town FC, Park Avenue, Fleetwood FY7 6TX | 0844 5678427 | |
| Bespoke Computing Ltd | Unit 28 A3, Stafford Park 4, Telford TF3 3BA | 0845 004 3025 | https://www.bespokecomputing.com/ |
| Bespoke Connected Ltd | 19 Sartoris Close, Southampton SO31 9EW | 01489565873 | |
| Bespoke Systems Ltd | Southbank House, Black Prince Road, London SE1 7SJ | 08451275500 | |
| Bespoke Telecoms Ltd | 6 Spur Road, Cosham, Portsmouth PO6 3EB | 023 9222 1222 | |
| Bespoke Telephony Solutions Ltd | Woodland Lodge, Dunston Business Village, Dunston, Stafford ST189AB | 08000210777 | |
| Best 4 Business Communications Ltd | Sheldon Chambers, 2235-2243 Coventry Road, Sheldon, Birmingham B26 3NW | 0870 300 3008 | https://www.b4bc.co.uk/ |
| Best Communicatons Ltd | Garden Cottage, Old Road, Oulton Heath, Stone ST15 8UT | 0845 6038356 | |
| Best Deals Telecom Ltd | 253 Alcester Road South, Branston Street, Birmingham B14 6DT | 08452093477 | |
| Best Practice IFA Group Ltd | Old Bank Chambers, 109-111 High Street, Hurstpierpoint, West Sussex BN6 9PU | 01273 837600 | |
| Best4net Ltd | Britannia House, 11 Glenthorne Road, Hammersmith, London W6 0LH | 02080906699 | |
| Bestway Communications | |||
| Betasafe Information Services Ltd | 9 Almond Place, Huntingtowerfield, Perth PH1 3FA | 03300436561 | |
| Bethel-Ay Ltd | 6 MANTON ROAD, LIVERPOOL L6 6BL | 07419672908 | |
| Better Connections (Solutions) Ltd | The Coach House, Cole Hill Bank, Congleton CW12 3AD | 0333 320 4131 | |
| Better Telecom Ltd | Unit 5 & 6 Greenline Business Park, Wellington Street, Burton-On-Trent, Staffordshire DE14 2AS | 0845 652 0248 | |
| Better-IT Ltd | 920A Melton Road, Thurmaston, Leicester LE4 8GR | 08712710125 | |
| Beyond Telecommunications Ltd | Suckings Yard, Church Street, Ware SG12 9EN | 0844 225 2970 | |
| BGreen Telecom Ltd | 31 Park Avenue, Eastwood, Leigh on Sea, Essex SS9 5XB | 01268 740 556 | |
| BHFM Ltd | 12 Killyman Road, Dungannon BT71 6DH | 07894434870 | |
| Bicom Systems EURL | Unit 5 Rockware Business Centre, 5 Rockware Avenue, Greenford UB6 0AA | 020 3399 8800 | https://www.bicomsystems.com/ |
| Big Blue Rocket Ltd | Castledine House, Heanor Road, Ilkeston DE7 8DY | 01332404303 | |
| Big Fast Web | http://www.bigfastweb.net/ | ||
| Bigfoot Networks Ltd | Clavering House, Newcastle Upon Tyne, Newcastle NE13NG | 01916404783 | |
| Billing Better Ltd | 152-160 Kemp House, City Road, London EC1V 2NX | 02034883571 | |
| Binary IS Ltd | Copthall Bridge House, Station Bridge, Harrogate HG1 1SP | 01423 223 511 | |
| Bink Networks Ltd | 48 Boston Road, London W7 3TR | 03307888999 | |
| Birchenallhowden Ltd | 178 Shoreham Street, Sheffield S1 4SQ | 0114 321 0555 | |
| Birchills Telecom | https://www.birchills.net/ | ||
| Birmingham Fibre Ltd | Faraday Wharf, Holt Street, Birmingham B7 4BB | 01216381000 | https://www.birminghamfibre.co.uk/ |
| Birmingham Telecommunications Ltd | Unit 14, The Courtyard,, Gorsey Lane, Coleshill B46 1JA | 01675 432 100 / 07712 835 308 | https://www.birminghamtelecom.co.uk/ |
| BIS Ltd | 38 St Mary Axe, London | ||
| Bistech Managed Services Ltd | 137 Victoria Road, Ferndown, Dorset BH22 9HX | 033 3011 2255 | https://www.bistech.co.uk/ |
| BIT Solutions Ltd | The Old Dairy, Bucklers Hall Farm, Much Hadham, Hertfordshire SG10 6EA | 0845 459 4172 | |
| Bit4 Ltd | Unit6, Karlsruhe House, Queens Bridge Road, Nottingham NG2 1NB | 0330 088 2733 | |
| Bitech Digital Ltd | Festival House, 39 Oxford Street, Newbury RG14 1JG | 01635905976 | |
| Bitenet Ltd | 6 Oakmeade Park, Bristol BS4 2ET | 0117 9831782 | |
| Bitsol Telecom Ltd | Hunters Lodge, 372 Palatine Road, Manchester M22 4FZ | 0161 711 1880 | |
| Bitz(UK) Ltd | 1 Spark Terrace, Stoke-on-Trent ST47QA | 08444101782 | |
| Bizitel Ltd | Unit 2 The Boscombe Centre, Mills Way, Amesbury SP4 7SD | 020 7148 6333 | |
| Bizz Telecom Ltd | 291 Bradford Road, Huddersfield HD1 6ER | 01484 515154 | |
| Black & White Network Services | Creditors voluntary liquidation November 2017 | ||
| Black & Yellow Ltd | 1 Morton Terrace, Gainsborough DN21 2RF | 0330 333 9090 | |
| Black Box Network Services (Uk) Ltd | 3 Bennet Court, Bennet Rd, Reading RG2 0QX | 07757010268 | |
| Black Cat IT Support Ltd | B3 Laser Quay, Culpeper Close, Rochester ME2 4HU | 01634914074 | |
| Black Sheep Business Communications Ltd | Meridian House, 5 Longworth Road, Horwich, Bolton BL6 7BA | 01204 206 013 | |
| Black Sheep Communications | https://www.blacksheepzone.com/ | ||
| black widow ltd | 137 brent street, Hendon, London NW4 4DJ | 08719506000 | |
| Blackbird Ltd | 5 Avro Court, Ermine Business park, Huntingdon PE29 6XS | 01480222942 | |
| Blackbird Solutions Ltd | 5 Avro Court, Ermine Business Park, Huntingdon PE29 6XS | 01480222942 | |
| Blackbox Document Solutions Ltd | 3-5 Medway Street, Maidstone ,Kent ME14 1JS | 0845 565 2026 | |
| Blackhouse Global Ltd | Hadleigh Business Centre, Crockatt Road, Hadleigh, Suffolk IP76RH | 08000149148 | |
| Blackmist Media Ltd | 272 Bath Street, Glasgow G2 4JR | 03300100981 | |
| Blackmore Business Solutions Ltd | 110 Whitehedge Road, Garston, Liverpool L19 1RZ | 0151 280 0180 | |
| Blackstar Solutions Ltd | 6th Floor Broad Quay House, Bristol BS1 4DJ | 03331232123 | |
| Blackwood IT Ltd | Unit 5C Newton Court, Westrand, Pendeford Business Park, Wolverhampton WV9 5HB | 01902711777 | |
| Blagdon IT Ltd | Coombe Lodge, Blagdon BS40 7RG | 01761250029 | |
| Blake Telecom Ltd | Blake House, 131 Stooperdale Avenue, Darlington DL3 0RP | 0843 309 1044 | |
| BlakeLAN Communications Ltd | Railway Cottage, Mill Road, Brighton BN1 8ZF | 01273 564092 | |
| Blastnet Communications Ltd | Station House, 7 Station Road, Pill, North Somerset BS20 0AD | 07799 661817 | |
| Blaucomm Ltd | 34 Tower Close, Abingdon OX14 5US | 08000062262 | |
| Blaze Networks Ltd | Beechfield House, Lyme Green Business Park, Winterton Way, Macclesfield, Cheshire SK11 0LP | 01625 511475 | |
| Ble Creative World Ltd | 3 MILL STREET, GLASGOW G40 1LT | 07563783161 | |
| Bleckfield Ltd | Thorncroft Manor, Thorncroft Drive, Leatherhead, Surrey KT22 8JB | 01372 700 007 | |
| Bleckfield Broadband | http://www.bleckfield-broadband.com/ | ||
| Blee International Ltd | Dragon Enterprise Centre, 4 Cullen Mill, Braintree Road, Witham, Essex CM8 2DD | 01376386854 | |
| Bleepers | Box 71, Barnet EN4 0QD | 02084408024 | |
| Blend Telecom Ltd | 2nd floor, East Wing, Ivor House, Bridge Street, Cardiff CF10 2EE | 02920456789 | |
| Blink Telecom Ltd | 3 Lewis Road, Sidcup, Kent DA14 4NB | 020 3327 5000 | |
| Blissful Futures Ltd | 6 Cown Road, Quay West, Business Village, Sunderland SR5 2AS | 01919172065 | |
| Blizzard Telecom Ltd | Swan Court, Waterhouse Street, Hemel Hempstead, Hertfordshire HP1 1DS | 0845 8737950 | http://www.blizzardtelecom.co.uk/ |
| Bloomberg Llc | 39-45 Finsbury Square, City Gate House, London EC2A 1PQ | 020 7330 7500 | |
| Blowfish Technology Ltd | West Lancashire Investment Centre, Skelmersdale WN8 9TG | 01695 351778 | |
| Bloxham Computers Ltd | Ayres Drive, Bloxham OX154FT | 01295404055 | |
| Bloxham Mill Services Ltd | Bloxham Mill, Barford Road, Bloxham, Banbury OX15 4FF | 01295 724545 | |
| Bloxxi Ltd | 103 Valley Road, Leamington Spa CV32 7RX | 08008021600 | |
| Blu Circle Communications Ltd | 8 Kensington Close, Oadby, Leicester LE2 5UL | 07726555556 | |
| Blue Castle Business Services Ltd | Warwick House,, Long Bennington Business Park, Long Bennington, Newark NG23 5JR | 01400 283888 | |
| Blue Cherry Telecom Ltd | Blue Cherry Telecom Ltd, Norfolk House East Entrance, 499 Silbury Blvd, Milton Keynes MK9 2AH | 01908 849 849 | |
| Blue Chip Data Systems | 19-25 Nuffield Road, Poole BH17 0RU | 0845 034 7222 | |
| Blue Leaf Network Solutions | 4325 Evergreen Dr, Dale City 22193 | +1 (916) 538-4651 | |
| Blue Letter Ltd | Peel House, 30 The Downs, Altrincham WA14 2PX | 08001217707 | |
| Blue Line Communications | Trewen, The Street, Motcombe, Shaftsbury, Dorset SP7 9PF | 01747-854410 | |
| Blue Logic Computer Systems Ltd | Bramley Grange, Skeltons Lane, Thorner, Leeds LS14 3DW | 0113 273 9040 | |
| Blue Ocean IT Hosting Ltd | 3 Bircham Rd, Southend-on-Sea SS2 5DN | 01702411244 | |
| Blue Penguins | Communications House, 290 Moston Lane, Manchester M40 9WB | 0161 713 2867 | https://www.bluepenguins.co.uk/ |
| Blue Planet IT Ltd | 2 Hamilton Terrace, Leamington OX16 9SD | 01295533977 | |
| Blue Planet Networking Ltd | The Springboard Centre, Mantle Lane, Coalville, Leicestershire LE67 3DW | 01530 817 217 | |
| Blue Planet Networks Ltd | Windmill Hill Business Park, Whitehill Way, Swindon SN56QR | 0117 3139420 | |
| Blue Profile Ltd | Braemar Court, 1311D Melton Road, SYston, Leicester LE7 2EN | 01162183000 | |
| Blue Ridge Telecom Systems LLC | 164 Walkden Road, Walkden, Manchester M28 7DP | 0800 932 1890 | |
| Blue Saffron Ltd | Shakespeare House, 168 Lavender Hill, Battersea, LONDON SW11 5TF | 0870 891 0202 | https://www.bluesaffron.com/ |
| Blue Sky I-Tech Solutions Ltd | Penbwch Isaf Farm, Penycoedcae Road, Pontypridd CF37 1PU | 02922409777 | |
| Blue Sky Management Services Ltd | 11 Gibbsyard, Auchincruive Country Estate, Ayr KA6 5HN | 0345 194 8250 | http://www.blueskymanagement.co.uk/ |
| Blue Sky Telecom UK Ltd | 51 Clarkegrove Road, Sheffield S10 2NH | 061415568400 | |
| Blue Square Telecoms Ltd | 1a Bow Lane, London EC4M 9EE | 020 7618 1980 | |
| Blue Telecom | Market Chambers, The Parade, Neath SA11 1PU | 0333 444 5558 | https://bluetelecoms.com/ |
| Blue Tiger Solutions Ltd | Regal House, 4-6 Station Road, Marlow SL7 1NB | 0203 019 2930 | |
| Blue Tree Communications Ltd | 5a Telford Close, Aylesbury, Buckingham HP19 8DS | 01280730004 | |
| Blue Water Telecoms LTD | 157 High Street, Prestatyn LL19 9AY | 08458387486 | |
| Bluebell | http://www.bluebelltelecom.com/ | ||
| Bluebell Cloud Solutions Ltd | Suite 221-223 I-Centre, Howard House, Howard Way, Newport Pagnell MK16 9PX | 01908299066 | |
| Bluebell Telecom Ltd | Murlain House, Union Street, Chester CH1 1QP | 0870 770 8998 | |
| BlueBill Ltd | 57 London Road, Enfield, Middx EN2 6DU | 020 8370 8370 | |
| BlueBuoy IT Support Ltd | First Floor, 39 Gay Street, Bath BA1 2NT | 01225 830667 | |
| Bluecherry Telecom Ltd | Queensway House, 207-209 Queensway, Bletchley MK2 2ED | 01908 632 943 | |
| Bluecloud IT LTD | Walker Davidson House, Newcastle NE158NL | 01915007130 | |
| Bluecube Technology Solutions Ltd | Blackhill Drive, Wolverton Mill, Milton Keynes MK12 5TS | 0845 2578010 | |
| Bluecube Telecom | http://www.bluecubetele.com/ | ||
| Bluecube Telecommunications Ltd | 1 Whitefriars Business Centre, High Street, Lincoln LN5 7DQ | 0845 3713 939 | |
| Blueloop Ltd | Blueloop House, Ilchester Road, Yeovil BA21 3AA | 01460 271055 | |
| Bluemast Communications LTD | 1st 27 Kirkgate, Leeds LS2 7DR | 0845 643 59 84 | |
| BlueMoon Solutions Ltd | Brook House, Edmonds Close, Wellingborough NN8 2QY | 0845 0043202 | |
| Bluesky Telecom | 40 Alder Drive, Timperley, Altrincham, Cheshire WA15 7YG | 0161 466 0606 | |
| Bluesource Information Ltd | 122 Tooley Street, London SE1 2TU | 0845 319 2100 | |
| Bluestone Solutions Ltd | 1a Bridge Street, Bedale, North Yorkshire DL8 2AD | 01677 424285 | |
| Bluetone Ltd | Top Floor Suite, 81 Church Road, Hove, East Sussex BN3 2BX | 0845 410 0005 | |
| Bluewave Communications Cymru Ltd | 103 Lammas Street, Carmarthen, Carmarthenshire SA31 3AP | 01267 610061 | |
| Blu-Sky-Solutions Ltd | Radway Green Business Centre, Radway Green, crewe CW2 5PR | 03301241238 | |
| Blutel Communications Ltd | Tutnall Farmhouse, Tutnall Close, Tutnall, Nr, Bromsgrove, Worcs B60 1NB | 01527 576 872 | |
| Bluu Sky Connections Ltd | Manor Farm House, London Rd, Shardlow, Derby DE72 2GR | 01332 799 716 | |
| Bluwave Cloud Ltd | 34 High Street, Aldridge, Walsall, West Midlands WS9 8LZ | 01633987151 | |
| BMCA Solutions Ltd | BMCA Sloutions Limited, CIDO Innovation Centre, 73 Charlestown Road, Portadown, Co Armagh BT63 5PP | 028 3886 8723 | |
| BMS Systems Ltd | Trussalls, Van-der-breen st., Bisley, Stroud GL6 7BP | 01452770500 | |
| Boffins (Wycombe) Ltd | Thame House, Thame Road, Haddenham, Buckinghamshire HP17 8HU | 01844 291110 | |
| Bogons Ltd | 39 Woolpitch Wood, Chepstow NP16 6DR | 0330 088 1040 | https://www.bogons.net/ |
| Boingo Wireless | https://www.boingo.com/ | ||
| Boldfield Ltd | Cambridge House, 91 High Street, Longstanton, Cambridge CB24 3BS | 01954 789 978 | |
| Bolton-Wand Computers Ltd | BWCL House, Brook Farm Estate, Kimbolton, LEOMINSTER HR6 0ES | 01568 750365 | |
| BOM Group Ltd | Clue House, Central Park Business Estate, Petherton Road, Hengrove, Bristol BS14 9BZ | 01275890100 | |
| BON.net | St George House, George Street, Huntingdon, Cambs PE29 3BD | 0845 660 5480 | https://www.bon.net/ |
| Bondgate IT Services Ltd | Newham House, 3 Dudley Court, Dudley Road, Darlington DL1 4GG | 01325 369 950 | |
| Bongo IT Ltd | 20 Littlemore Road, Oxford OX4 3SU | 01865988217 | |
| Bonhomie Ltd | 54 High Street, Seveonoaks, Kent TN13 1JG | 01732 762 762 | |
| bOnline Ltd | Unit 01, Rudolf Place, London SW8 1RP | 020 3617 9950 | |
| Boosh 365 Ltd | 5 Great Bramshot Farm Barns, Bramshot Lane, Fleet GU51 2SF | 0800 285 1680 | |
| Bootcamp Media Ltd | 7 Mary Street, Birmingham B3 1UD | 01216302350 | |
| Bootup Pc Ltd | Victoria House, Victoria Street, Taunton TA1 3FA | 01823 210010 | |
| Borderlink Broadband Ltd | Blackadder West Farm House, Blackadder, Duns TD11 3LX | 07917757319 | |
| Boss Telecom Ltd | 61 Rowson Road, Bolton BL1 4JQ | 01618702417 | |
| Boston IT Ltd | 20 Leybourne Avenue, Bournemouth BH10 6HF | 01202 530114 | |
| North SV Ltd | Titanium 1, King's Inch Place, Braehead, Renfrew PA4 8WF | 0141 892 2001 | |
| Boundary Communications Ltd | Indigo Forward, 148 Leadenhall Street, London EC3V 4QT | 0800 032 3621 | |
| Boundary IT Services Ltd | Columbia House, Columbia Drive, Worthing, West Sussex BN13 3HD | 01903 263 771 | |
| Boundless Communications Ltd | Southside Aviation Centre, Leeds Bradford International Airport, Leeds LS19 7UG | 01257752555 | |
| Bourke Telecomunicaoese Servicos LDA | Unit 21, Park Royal Metro Centre, Britannia Way, London NW10 7PA | 020 8965 8964 | |
| Bourne Computer Services | 4 Chesire Cottages, Charndon, Bicester OX27 0BT | 01296 738 420 | |
| Bourne Technologies Ltd | 124 Edgehill Road, Regal House, 70 London Road, Twickenham, Bournemouth BH9 2PU | 01202 530114 | |
| Bowker IT Ltd | Whitegate, White Lund Industrial Estate, Morecambe, Lancashire LA3 3BS | 0844 880 0737 | |
| Box Ltd | First Avenue, Minworth, Sutton Coldfield B76 1BA | 0121 202 0000 | |
| Box Telecoms | 126 Duffield Road, Little Eaton, Derby DE12 5DU | 0845 303 2775 | |
| Boxer Communications Ltd | Linwood, St Peters Road, Arnesby, Leicester LE8 5WJ | 0844 583 8668 | |
| Boxing Clever Soloutions LTD | Millennium House, 198 Winchester Road, London E4 9JP | 02085310680 | |
| Boxx Communications Ltd | Norfolk House, East Entrance, 499 Silbury Blvd, Milton Keynes MK9 2AH | 01908 615791 | https://www.boxxcomms.co.uk/ |
| Boyns Information systems Ltd | Unit 12, Clwydfro Business Centre, Ruthin, Denbighshire LL15 1NJ | 01824 702211 | |
| BP Networks | https://www.bpnetworks.co.uk/ | ||
| Brandan Computer Solutions Ltd | 10 Higher Kingsdown Road, Teignmouth TQ14 9AT | 01626 333335 | |
| Branderson Group Ltd | 283 Green Lanes, London, London, London N13 4XS | 07789873708 | |
| Braunton Utilities Ltd | 4 Cross Tree Centre, Caen Street, Braunton EX33 1AA | Simon Scott | |
| Breakwater IT Ltd | 20 Meridian Way, Meridian Business Park, Norwich NR7 0TA | 01603709300 | |
| Breathe Internet Ltd | 3rd Floor, 207 Regent Street, London W1B 3HH | 0871 424 0102 | https://breatheinternet.com/ |
| Breathe Technology Ltd | The Work Place Camboro Business Park, Oakington Road, Girton, Cambridge CB3 0QH | 01223209920 | |
| Breeze Broadband Ltd | 103 Cranbrook Road, Ilford IG14PU | 07581491889 | |
| Breeze Networks Ltd | Castle Court, 41 London Road, Reigate RH2 9RJ | 01737735185 | |
| Breeze telecommunications Ltd | Moulsham Mill Parkway, Chelmsford, CM2 7PX | 0845 888 7800 | |
| Breeze telecommunications Ltd | Suite 9 Boarman House, 64 Broadway, Stratford E15 1NT | 02085226655 | |
| Breezr Ltd | 26 Bakehouse Close, Wigan, Lancashire WN5 9BD | 07825788332 | |
| Brent Telecom | 1 Coalisland Road, Dungannon, Co Tyrone BT71 6JT | 02887 729580 | |
| Briant Broadband Ltd | unit 3, Worthing BN11 3EZ | 07796308197 | |
| Briant Communications (Sussex) Ltd | 3 Stanford Square, Worthing BN11 3EZ | 01903 208998 | |
| BrianYoung | 26 Steed Crescent, Colchester CO2 7SJ | 07949336206 | |
| Bridge 1 Solutions Ltd | 12 Gladstone Road, Hockley SS5 4BT | 020 7099 1631 | |
| Bridge Fibre Ltd | Jeffreys Building, St John's Innovation Park, Cowley Road, Cambridge CB4 0DS | 01223 755 055 | https://www.bridgefibre.co.uk/ |
| BridgeOne Telecom Ltd | 1st Floor, 22 Bevis Marks, London EC3A 7JB | 020 7871 0370 | |
| Bridger Group International Ltd | 20, Magazine Road, Ashford, Ashford TN24 8NN | 07938312951 | |
| Bright Cloud Ltd | 39-41 Carrholm Road, Leeds LS7 2NQ | 0207 127 6952 | |
| Bright Future Computers | 10 Paxton Close, Harwood Park, Bromsgrove, Worcestershire B60 2HB | 01527832120 | |
| Bright Orange Outsourcing Ltd | West1, West Dock Street, Hull HU3 4HH | 01482 900909 | https://brightorange.co.uk/ |
| Brighter Bills Ltd | Manor House, Manor Lane, Holmes Chapel, Cheshire CW4 8AF | 0843 221 1133 | |
| Brighter IT Solutions Ltd | Onsite Lodge, 9 Mansfield Road, Eastwood NG16 3AR | 08449800722 | |
| Brighter Telecoms Ltd | 21 Cormie Close, Stoke on Trent ST6 6QN | 07886007542 | |
| Brighton CCTV Ltd | 27 Beaconsfield Road, Portslade, Brighton BN41 1XA | 01273 782323 | |
| Brightridge Technology Ltd | Unit 6A Nasmyth Court, Houston Industrial Estate, Livingston EH54 5EG | 0131 202 0777 | |
| BrightServe Ltd | 41-42 Southgate, Chichester PO19 1ET | 01329800003 | |
| BrightSkye Ltd | Kelvin House, 87 Calder St, Coatbridge ML5 4EY | 0141 212 2240 | |
| Brightsolid Online Technology Ltd | Gateway House, Luna Place, Dundee Technology Park, Dundee DD2 1TP | 01382 429000 | |
| Brightstar Ltd | 4 Metro Business Centre, Kangley Bridge Road, London SE26 5BW | 0845 004 5600 | |
| BrightVisions Ltd | 6 Eaton Court Road, Colmworth Business Park, St.Neots, Cambridgeshire PE19 8ER | 01480 708888 | |
| Brightvue Media Ltd | Norfolk Street, Liverpool L1 0BG | 0151 329 2166 | |
| Brill Computers | Unit 7, Brook Farm Barns, Dorton, Bucks HP18 9NQ | 01844237009 | |
| Brilliancepay Ltd | 28, Kansas Avenue, Media City, Manchester M50 2GL | 07506 972745 | |
| Brilliant IT Ltd | C5 C6 Harlow Business Centre, Lovet Road, Harlow, Essex CM19 5AF | 01279316431 | |
| Bring IT Together Ltd | seitani, main road, whiteshill, glos GL6 6JS | 07854585253 | |
| Bristol & West Copiers | 196-198 Cheltenham Road, Bristol BS6 5QZ | 01179 232323 | |
| Bristol IT Company | Castlemead,, Lower Castle, Bristol BS1 3AG. | 01173 700777 | |
| Bristol IT Management Ltd | 11, Milton Park, Bristol BS5 9HQ | 07769672118 | |
| Bristol Technology Group Ltd | 255 Coronation Road, Bristol BS3 1RS | 0117 3900040 | |
| Brit Fibre Networks Ltd | 7, Chestnut Court, Parc Menai, Bangor LL574FH | 01248663720 | |
| Britannia Comms Ltd | 1 Meadow Close, GODALMING, Surrey GU8 5HN | 02033888000 | |
| Britannia IT Services Ltd | 66 Eastbourne Road, Birkdale, Southport PR8 4DU | 01704320640 | |
| Telesis Ltd | 15 Bishops Grange, Rugeley, Staffordshire WS15 3JY | 0800 012 6336 | |
| Britannic Technologies Ltd | Britannic House, Merrow Lane, Guildford, Surrey GU4 7BN | 01483 242 555 | https://www.btlnet.co.uk/ |
| Britclick Telecom | 40 Huddersfield Road, Meltham, Huddersfield, West Yorkshire HD9 4AG | 0845 1 292922 | |
| Britelec Network Services Ltd | 39 London Road, Braintree CM7 2LD | 01376321330 | |
| Briteyellow Ltd | Cranfield Innovation Centre,, University Way,, Cranfield MK43 0BT | 08455570520 | |
| British Broadcasting Corporation | Research & Devlopment Dept, 56 Wood Lane, London W12 7SB | 0303 040 9888 | |
| British Telecommunications PLC | 81 Newgate Street, London, EC1A 7AJ | 020 7356 5000 | https://home.bt.com/ |
| Brittalk | 2 Pevensey Road, Bedford MK41 8HW | 01234 818 948 | |
| Brix Secure Ltd | 88a Northampton Road, Brixworth, Northampton, Northampton NN6 9DY | 01604882456 | |
| BRL Consulting Ltd | Paynes Place Barn, New Road, Shaftesbury SP7 8QL | 01747 859257 | |
| Broad Access Services Ltd | unit 419, houldsworth mill, houldsworth street, stockport SK56DA | 07305987718 | |
| Broad Oak Consultants Ltd | Sun Cottage, High Street, Hatfield Broad Oak, Bishops Stortford CM22 7HE | 01279 718 596 | |
| Broadband & Hosting UK Ltd | Kemp House, 160 City Road, London EC1V 2NX | 07979288913 | |
| Broadband Cloud Solutions Ltd | Suite 1, 2 Commercial Street, Edinburgh EH6 6JA | 0845 838 1710 | |
| Broadband Computer Co Ltd | Amazing Towers, Church Street, Gateshead NE82AT | 01912614271 | |
| Broadband For Rural Kent Ltd | Foxhill Stud, Fox Lane, Boughton-under-Blean, Faversham ME139PF | 01227807404 | |
| Broadband Saver Ltd | Terminus House, Terminus Street, Harlow CM20 1XA | 02037737404 | |
| Broadband Visual Communications Ltd | BS3 4LZ | 0117 373 5302 | |
| Broadband Wherever | Unit C4, Grovelands Avenue, Winnersh, Wokingham RG41 5LB | 0800 068 3358 | https://www.broadbandwherever.net/ |
| Broadband Wifi Ltd | Unit 2, The Boscombe Centre, Mills Way, Amesbury SP4 7SD | 02071004550 | |
| Broadband9 Ltd | 3 Hope Street, Haslingden, Lancashire BB4 6NS | 07864601301 | |
| Broadbase Consulting Ltd | 3A Quay View Business, Barnards Way, Lowestoft NR32 2HD | 01394421389 | |
| Broadcentric Ltd | Suite 20,, 13 Upper High Street, Thame, Oxfordshire OX9 3ER | 01844272727 | |
| Broadcom Ltd | Pelican House, 83 New Street, Andover SP10 1DR | 01264338110 | |
| Broadway Partners Ltd | Tempest Building, Tithebarn Street, Liverpool L2 2DT | +44 (0) 141 465 8500 | |
| Brodynt Global Services SL | Gran Via Carles III, 84, 3rd floor, Barcelona 8028 | 034933801549 | |
| Brogan Business Services Ltd | 10 Brooklands Court, Kettering Venture PArk, Kettering NN15 6FD | 07801253771 | |
| Bromley Jacobs (UK) Ltd | 1 The Crescent, Much Wenlock TF136JF | 07909505755 | |
| Brontel Ltd | Unit 29 Dalton Mills, Dalton Lane, Keighley BD21 4JH | 01535 602 221 | https://brontel.com/ |
| Brookfield ICT Ltd | Bridge of Weir, Renfrewshire PA11 3SX | 01505 612229 | |
| Brookland Computer Services Ltd | Kent House, Upper Mulgrave Road, Sutton, Surrey SM2 7AY | 020 8652 2610 | |
| Bruin Communications Ltd | PO Box 98, Leominster, Herefordshire HR6 6AY | 0844 493 0455 | |
| Brunel Microscopes Ltd | Unit 2 Vincients Road Bumpers Farm Chippenham, SN146NQ | 01249705000 | |
| Brunel IT Ltd | Woodlands Grange, Woodlands Lane, Bradley Stoke, Bristol BS32 4JY | 07816142660 | |
| Brunel Microscopes Ltd | Unit 2, Vincient Road, Bumpers Farm Industrial Estate, Chippenham, Wiltshire SN14 6NQ | 01249 705000 | |
| Brunswick Computers Ltd | The Bridgewater Complex, Canal Street, Liverpool L20 8AH | 01512032032 | |
| BS Infrastructure Solutions Ltd | 49 Queen Victoria Street, London EC4N 4SA | 0207 653 1945 | |
| Bs42 Ltd | 2 Walmagate Road, Perivale, Greenford, London UB6 7LH | 020 3418 0206 | |
| BSAS Telecoms Ltd | Systems House,, Chippenham Hill, Moulton, Newmarket, Suffolk CB8 7PL | 01638 552 888 | https://www.bsas.co.uk/ |
| BSKYB LLU Assets Ltd | Grant Way, Isleworth, Middx TW7 5QD | https://www.sky.com/ | |
| BSKYB Telecommunications Services Ltd | Grant Way, Isleworth, Middx TW7 5QD | https://www.sky.com/ | |
| BT Broadband Talk | https://home.bt.com/ | ||
| BT Business Broadband Voice | https://home.bt.com/ | ||
| BT Business Plan | https://home.bt.com/ | ||
| BT Calling Plans | https://home.bt.com/ | ||
| BT Customer Commitment | https://home.bt.com/ | ||
| BT Lancashire Services Ltd | County Hall, Fishergate, Preston, Lancashire PR1 8RE | 01524 586 500 | |
| BT OnePhone Ltd | 81 Newgate Street, London, EC1A 7AJ | 020 7356 5000 | https://home.bt.com/ |
| BT Standard Business | https://home.bt.com/ | ||
| BT Standard Residential and Payphone | https://home.bt.com/ | ||
| Bta Ltd | Unit 1 Delta Park, Smugglers Way, Wandsworth SW18 1EG | 02088714240 | |
| Btel Communications | Warth Business Centre, Warth Road, Bury BL9 9TB | 01615071570 | |
| Btl Network Ltd | 29 Oxgate Court, Coles Green Road, London NW2 7EU | 02071172520 | |
| BTT Network Solutions LTD | Five Willows Farm, Old Thrapston Road, Cranford, Northampton NN14 4AW | 01536 211100 | |
| BTUK Ltd | 10 Cranfield Close, Manchester M40 7AY | 07425232503 | |
| Bucks IT Solutions Ltd | 5 Main Street, Chilthorne Domer, Yeovil BA22 8RD | 0845 524 0970 | |
| Bucks Net Services Ltd | 1 Alton House Office Park, Gatehouse Way, Aylesbury HP19 8XU | 01296 432 486 | |
| Budget Numbers Ltd | Imex Building Maxted Road, Hemel Hempstead Industrial Estate, Hemel Hempstead HP2 7DX | 0333 3222123 | https://www.budgetnumbers.co.uk/ |
| Budgetcom | https://www.budgetcom.co.uk/ | ||
| Building Zones Ltd | 85-87 Bayham Street, London NW1 0AG | 020 3475 2185 | |
| Burnt Orange Solutions Ltd | BCR Building, 3 Bredbury Business Park, Stockport, Cheshire SK6 2SN | 0844 740 1632 | |
| Burstfire Networks Ltd | Davenport House, 16 Pepper Street, London E14 9RP | 020 7127 4922 | |
| Burway Computer Services | 34 Essex Road, Church Stretton SY6 6AY | 01694240024 | |
| Business Broadband and Communications Ltd | Pendle Innovation Centre, Brook Street, Nelson, Lancashire BB9 9PU | 01282 560 500 | |
| Business Broadcast Communications Ltd | Gilbert Wakefield, 67 Bewsey Street, Warrington WA2 7JQ | 0161 246 6052 | https://www.businessbroadcastcommunications.com/ |
| Business Comms Solution Ltd | Telecom House, 158 The Marlowes, Hemel Hempstead, Hertfordshire HP1 1BA | 01442 353 100 | |
| Business Communicate Ltd | Carrwood Park, Selby Road, Leeds LS15 4LG | 07803117944 | |
| Business Computing and Network Services Ltd | 11 Kingswood Court, Long Meadow, South Brent TQ10 9YS | 01752 547150 | |
| Business Edge Technologies Ltd | 13 Station Road, Hailsham BN27 2BE | 01323400370 | |
| Business Efficiency Ltd | 8 Robin Crescent, London E6 5XA | 07933 361504 | |
| Business Energy Direct Ltd | 52 nevin crescent, cardiff CF3 3NW | 07946411624 | |
| Business Equipment Centre (Systems) Ltd | 10 Prospect Place, East Pimbo, Skelmersdale, Lancashire WN8 9QD | 0844 264 0430 | |
| Business I.T. Support Team Ltd | 4 Fairfax House, Cottingley Business Park, Bingley BD16 1PY | 01274518789 | |
| Business IT & Accounting Solutions Ltd | Bavard House, Darnaway Drive, GLENROTHES KY7 6GL | 07968721255 | |
| Business Network Services | |||
| Business Performance Management | First Floor, Barclays House, Gatehouse Way, Aylesbury HP19 8DB | 0871 223 6220 | |
| Business Phone Calls Ltd | 49a Main Street, Woodborough, Nottingham NG14 6EA | 0808 180 1122 | https://www.businessphonecalls.com/ |
| Business Phone Systems Ltd | Centurion House, Western Avenue Business Centre, Kendal Avenue, London W3 0XA | 0870 811 1141 | |
| Business Phones & Networks Ltd | The Stables, Wassell Grove Lane, Hagley, Stourbridge DY9 9JH | 0844 822 1212 | |
| Business Serve Plc | |||
| Business Solutions Ltd | 21 Barrington Road, Altrincham, Cheshire WA14 1HP | 0161 925 4900 | |
| Business Systems (Scotland) | 2 Glenpark Ave, Glasgow G46 7JF | 07850 760966 | |
| Business Technologies NI | 12 Seymour Park, Lisburn BT27 5BQ | 02892443424 | |
| Business Technology Partners Ltd | 32-34 Leigh Rd, Eastleigh SP509DT | 08451308595 | |
| Business Telecom Ltd | Dissolved on 5 February 2014 | ||
| Business Telecoms Direct Ltd | 123 High Street, Rainham, Kent ME8 8AN | 0844 822 3188 | |
| Business Telecoms Solutions Ltd | 28 CHURCH ROAD, STANMORE, MIDDLESEX, LONDON HA7 4XR | 08450 344 542 | |
| Hub Business Solutions Ltd | 5 Fewster Road Nailsworth, Glos GL6 0DH | 01453 833 684 | |
| Business Telephony Ltd | 73 cornhill, london EC3V 3QQ | 07793 590645 | |
| Business Transfer Communications Ltd | |||
| BusinessCall | Newhaven, Pyrford Woods, Woking, Surrey GU22 8QR | 01932 356 222 | |
| Businessip Solutions Ltd | 702 Romford Road, London E125AJ | 02070999133 | |
| Businessmovers.Tech Ltd | Office F, Business Centre West, Avenue One, Letchworth SG6 2HB | 02039098200 | |
| BusinessWatch UK Fire & Security Ltd | Unit 9, Swan Court, Forder Way, Peterborough PE7 8GX | 0845 290 3733 | |
| Businesswise Solutions Ltd | Lomeshaye Business Village, Suite 103-105, Nelson, Lancashire BB9 7DR | 01282 611329 | |
| Busted Networks Ltd | PO Box 103, Bognor Regis, West Sussex PO22 0WB | 0845 527 5888 | |
| Buy Trade Phones Ltd | 4 Brooklands Road, Broadfield, Crawley, West Sussex RH11 9QQ | 07799 766 020 | |
| Buzz Connex Ltd | PO Box 10262, Harwich CO12 9AB | 0845 643 4287 | |
| Buzz Networks Ltd | Unit 11 Leanne Business Park, Sandford Lane, Wareham, Dorset BH20 4DY | 01929 775000 | https://www.buzzconnect.co.uk/ |
| Bvrcomm Ltd | Main Street, Marston, Lincs NG32 2HH | 01400 251607 | |
| By Us Group Ltd | 3 & 4 Brittens Court, Clifton Reynes, Milton Keynes MK46 5DX | 03300161920 | |
| Bytefetch Ltd | Charwell House, Wilsom Road, Alton, Hampshire GU34 2PP | 0844 704 8560 | |
| BYTEiT | Chy Gwidden, Tregurthen Road, Camborne TR14 7DZ | 01872300190 | |
| Bytemark Ltd | 2 Opus Avenue, York YO26 6BL | 01904890890 | |
| C M Y K Digital Solutions Ltd | Unit 9 Butlerfield Industrial Estate, Bonnyrigg EH19 3JQ | 01875 825100 | |
| C S Technical Services Scotland LTD | 83 North Street, Levan, Fife KY8 4LY | 01333 439 977 | |
| C&J Group Ltd | 19 Spruce Park, Ayr KA73PL | 07948994362 | |
| C.G.Murray & Son Ltd | PO Box 2256, Stourbridge DY8 1WT | 01384 445600 | |
| C.I.D Fire and Security Ltd | Unit 10, Canvin Court, Somerton Business Park, Somerton TA11 6SB | 01458274555 | |
| C2C Ltd | 3 Gower Street, 1st Floor, London WC1E 6HA | 01279 841079 | |
| C2-UK Communications Ltd | Business First Business Centre, Liverpool Road, Burnley BB12 6HA | 0844 854 2700 | http://www.c2-uk.com/ |
| Computer and Communications Co Ltd | The Jeffreys Building St. Johns Innovation Centre Cowley Road Cambridge CB4 0WS | 01223 427700 | |
| C4 Secure Ltd | Hillside, The Wharf, Braunston, Daventry NN11 7JQ | 01604439303 | |
| CAB IT Services Ltd | 1 Lyons Court, Long Ashton Business Park, Long Ashton, Bristol BS41 9LB | 01275394600 | |
| Cable & Wireless Communications | 26 Red Lion Square, London, WC1R 4HQ | 020 7315 4000 | https://www.cwc.com/ |
| Cable Telcommunications Ltd | 15 The Broadway, Woodford Green, Essex IG7 6LU | 020 8506 6481 | |
| Cable Telecom Ltd | 40 Willoughby Road, London N8 0JG | 08000 901 558 | |
| Cabled Solutions Ltd | All Fairoaks Airport, Cobham, Surey GU24 8HU | 01932 500650 | |
| Cablestream Ltd | Glamorgan House, Cardiff Gate Business Park, Cardiff CF23 8RD | 02920 545 945 | https://www.cablestream.co.uk/ |
| Cablestreet Ltd | Office 7, 35-37 Ludgate Hill, London EC4M 7JN | 02034226900 | |
| Cablewise Communications & Systems Ltd | The Old Smithy, 4 School Road, Kidlington, Oxon OX5 1RG | 01865 841 166 | https://www.commswise.co.uk/ |
| Cactus Backup Ltd | 3 Hawksworth Street, Ilkley LS299DU | 01943666711 | |
| Cactus Business Solutions Ltd | 16-20 South Street, Hythe, Hampshire SO45 6EB | 0333 333 2333 | |
| Cadence Networks Ltd | 61 Oaklands Avenue, Brighton BN2 8PB | 02034756800 | |
| Cadenza Communications Consulting UK Ltd | 27 Old Gloucester St, London WC1N 3XX | 07788 975996 | |
| Cadmus Distribution Group Ltd | 32 Writtle Road, Chelmsford CM13BX | 03300880195 | |
| CAE Communications Ltd | CAE House, Colonial House, Watford, Herts WD24 4PT | 08708 500 510 | |
| Caerus Solutions Ltd | 20 Queens Road, Warsash, Southampton SO31 9JY | 01489480808 | |
| Caiman Information Technology Services Ltd | Paragon House, 59 Palmerston Road, Aberdeen AB115QP | 01224937070 | |
| Calcom Holdings, t/as G6 | https://www.g6-global.com/ | ||
| Calder IT Ltd | Suite F5 Trinity House, Blackwall, Halifax HX1 2QR | 03300020088 | |
| Caldera IT Ltd | 32 Meadway, Hildenborough, Kent TN11 9HA | 0843 2241000 | |
| Calibre Connections LLP | St Davids's House, 48 Free Street, Brecon, Powys LD3 7BN | 01874 640 040 | |
| Calibre Network Ltd | |||
| Calibre Telecoms Ltd | The Barn, Langtye Lane, Ripe, East Sussex BN25 4QL | 01323 815 015 | |
| Calidore Computer Systems Ltd | Waterside Drive, Gateshead NE11 9HU | 0191 487 9558 | |
| Call Collective Ltd | 5th Floor Oxford Place, 61 Oxford Street, Manchester M1 6EQ | ||
| Call Connect Ltd | PO Box 8026, Reading RG6 9DR | 0800 197 3545 | |
| Call Discounts Lmited | 97 Rowan Drive, Highcliffe, Christchurch BH23 4SH | 01202795700 | |
| Call Flow Solutions Ltd | Suite 2, Branbridges Industrial Estate, Branbridges Road, East Peckham, Kent TN12 5HF | 0800 280 0590 | https://www.callflow.co.uk/ |
| Call Handling Services Ltd | Bakerloo Chambers, 304 Edgware Road, London W1 1DY | 0333 3210888 | |
| Call Happy | https://www.callhappy.co.uk/ | ||
| Call Monitor | https://www.callmonitor.com/ | ||
| Call Plan Solutions Ltd | 36 College Road, Ripon, North Yorkshire HG4 2HA | 0333 3230050 | |
| Call Stream | Bordesley Hall, The Holloway, Alvechurch, Birmingham B48 7QA | 0870 787 7868 | |
| Call Telecom | 90 Blunden Drive, Slough SL3 8WQ | ||
| Call08 | https://www.callready.co.uk/ | ||
| Call118866 | PO Box 44714, London SW1Y 4XD | 0844 861 8040 | https://www.call18866.co.uk/ |
| Call27 Telecommunications Ltd | 86-90 Paul Street, London EC2A 4NE | 01915802727 | |
| Call27 Telecommunications Ltd | 18 Riverside Studios, Newcastle Business Park, NEWCASTLE UPON TYNE NE4 7YL | 01915802727 | |
| Call2Abroad | 138 Wayside Green, Woodcote, Reading RG8 0QJ | https://www.call2abroad.com/ | |
| Call2Call | https://www.call2call.co.uk/ | ||
| Callagenix Ltd | Top Lodge, Harleyford Estate, Henley Road, Marlow, Bucks SL7 2DX | 0870 626 0626 | http://www.callagenix.com/ |
| CallAngels | https://www.callready.co.uk/ | ||
| Callblocker Ltd | 2 Cromwell Street, Worcester WR4 9EN | 01905 388 000 | |
| Callgen Ltd | 431 London Road, Camberley, Surrey GU15 3HZ | 0845 475 7700 | https://www.callgen.co.uk/ |
| Callger ltd | 12 Fortrose Street, Glasgow, Glasgow G11 5LP | 01413425460 | |
| Callidus Communications Ltd | 132-134, Great Ancoats, Manchester M4 6DE | 07708177791 | |
| Callitech Ltd | Moneypenny House, Western Gateway, Wrexham LL13 7ZB | 0333 202 1005 | https://www.moneypenny.com/uk/ |
| Call-Link Communications Ltd | 14 Hemmells, Laindon, Essex SS15 6ED | ||
| Callmaster Ltd | Wrecclesham Road, Wrecclesham, Fernham, Surrey GU10 4PS | 01252 711 053 | |
| Callmaster Mobile Ltd | C3 Endeavour Place, Coxbridge Business Park, Farnham SURREY | 01252854352 | |
| Callmonitor Ltd | 207 Regent Street, London W1B 4ND | 020 7120 0000 | https://www.callmonitor.com/ |
| CallReady | https://www.callready.co.uk/ | ||
| Calls 4 Business Ltd | The Stables, Potlocks Farm, Willington Road, Findern DE65 6AS | 0844 908 0080 | |
| The Calls Warehouse Ltd | 23 New Mount Street, Manchester M4 4DE | 0161 212 7373 | |
| Callstream | https://www.callstream.com/ | ||
| Callswitch Technologies Ltd | (in liquidation, December 2013) | ||
| Calltracks Ltd | 2 Redhouse Square, Duncan Close, Northampton NN3 6WL | 020 3199 3701 | https://www.calltracks.com/ |
| Calteq Ltd | 4a The Lanterns, Melbourn Street, Royston, Herts SG8 7BX | 0808 146 7000 | https://www.calteq.co.uk/ |
| Calyx Networks Ltd | The Pavilion, Tower Business Park, Wilmslow Road, Didsbury M20 2LS | 0870 055 0000 | |
| CAM (Scotland) Ltd | 2 Glenpark Ave, Glasgow G467JF | 01415776515 | |
| CAM Systems Ltd | Draycott Business Park, Cam, Dursley, Gloucestershire GL11 5QD | 01453 891 000 | |
| Cambconnect Ltd | 126C Mill Road, Cambridge CB12BQ | +44 (0)330 350 1122 | |
| Cambrian Communications Cyf | https://www.pacetelecom.co.uk/ | ||
| Cambrian Connect Ltd | 168, City Road, Roath, Cardiff CF24 3JE | 07980985940 | |
| Cambridge Computer Consultants Ltd | Hercules House, Pierson Road, Enterprise Campus, Alconbury Weald PE28 4YA | 01480262262 | |
| Cambridge Computer Systems Ltd | 25 Rosemary House, Lanwades Business Park, Kentford, Newmarket CB8 7PN | 01638751485 | |
| Cambridge Fibre Networks Ltd | 21 Signet Court, Cambridge CB5 8LA | 01223 446000 | |
| Cambridge Support Ltd | 4 Fenice Court Phoenix Business Park, Eaton Socon, St. Neots, St. Neots PE19 8EP | 01223 736200 | |
| cambridge telecom | 38 Grove lane, Ipswich IP41NY | 01223661636 | |
| Camloc Security Ltd | 11 Millbrooke Close, St James, Northampton NN5 5JF | 08456893008 | |
| Campingconnect Ltd | Unit 10/12, 250 Carmarthen Road, Swansea SA1 1HG | 01792 277230 | |
| Can - Solutions Ltd | Electra House, Crewe CW1 6GL | 03300240223 | |
| Cancom Managed Services Ltd | Concourse Building 1, Queens Road, Belfast BT3 9DT | 028 9081 7171 | |
| candasys | Ashlar House, 115 Walsall Road, Aldridge, Walsall WS9 0AX | 01213234455 | |
| Candy Communications Ltd | 42A Cardiff Road, Caerphilly CF83 1JQ | 03300883341 | |
| Candy Telecom Ltd | 71 King George V Drive, Cardiff CF14 4EF | 07956378750 | |
| CANetworks Ltd | |||
| Capita IT Services Ltd | 540 Bristol Business Park, Coldharbour Lane, Bristol BS16 1EJ | 0117 311 3311 | |
| Capital Network Solutions Ltd | Cardiff House, Cardiff Road, Barry, Vale of Glamorgan CF63 2AW | 0845 3054118 | |
| Capital Networks Ltd | 65 Liscard Village, Wallasey, Merseyside CH454JL | 08454705704 | |
| Capital Services Corporation Ltd | 129, Bromley Gardens, Dunstable LU5 5RJ | 07800826161 | |
| Capital Support Ltd | 3 Harbour Exchange Square, London E14 9GE | 020 7458 1250 | |
| Capital Telecom (London) Ltd | 81 Chevening Road, London SE19 3TD | 0845 688 3997 | |
| Capital Telecom (WowTel Ltd) | Suite 3, Richmond House, Richmond Hill, Bournemouth BH2 6EZ | 0800 228866 | https://capitaltelecom.co.uk |
| Capito Holdings Ltd | Caputhall Road, Deans, Livingston EH54 8AS | 0845 644 3601 - 01506 472 492 | |
| Capstan Communications Ltd | Unit B, Blatchford Road, Horsham, West Sussex RH13 5QH | 01403 221728 | |
| Capstone Intelligent Solutions UK Ltd | 2 London Wall Buildings, London Wall, London EC2M 5UU | 020 7993 9395 | |
| Carden I.T Services Ltd | Ingleby House, Crowhurst Road, Brighton, East Sussex BN1 8AF | 01273 552059 | |
| Care Computers and Services Ltd | Power House, Oak Lane, Windsor, Berkshire SL4 5EU | 01753 833 177 | |
| Care Software Ltd | TechHub, 221 High Street, Swansea SA1 1NW | 01792685568 | |
| Carefree Communications Ltd | Brunel House, Ediva Road, Kent DA13 0ND | 0844 801 3384 | |
| Carlton Reece Ltd | 145-157 St John Street, London EC1V 4PW | 0845 163 99 88 | |
| Caroleo Technology Ltd | 1a Woodland Road, London SE19 1NS | 020 3137 6492 | |
| The Carphone Warehouse Group PLC | 1 Portal Way, London W3 6RS | 020 8896 5000 | https://www.carphonewarehouse.com/ |
| Carr Royd Parks Ltd | Sower Carr Lane, Hambleton, Lancs FY6 9EQ | 01253 724 000 | |
| Carrera UK Ltd | 1000 Lakeside, North Harbour, Portsmouth PO6 3EZ | 02392610123 | |
| Carreras Communications Ltd | Carreras House, 10 Tawe Business Village, Pheonix Way, Llansamlet, Swansea SA7 9LA | 01792 368111 | |
| Carritech Ltd | Hedgerows, Horam, East Sussex TN21 0LJ | 01435 812 306 | |
| Carrot Technology Group Ltd | 5 Southview Close, Swanley BR8 8BP | 07949083400 | |
| Carter Utilities Ltd | 40 The Badgers, St Georges, Weston Super Mare BS22 7RF | 01934 315300 | |
| Cartridges Direct (Altrincham) Ltd | 31 Tatton Street, Knutsford, Cheshire WA16 6AE | 01565 650022 | |
| Case Communications Ltd | Unit 12E Norths Estate, Old Oxford Road, Piddington, High Wycombe HP14 3BE | 0845 643 0800 | |
| Cashbacktele.Com Ltd | Graphical House, Wharf Street, Leeds LS2 7EQ | 03333444901 | |
| CasperTech Ltd | St John's Innovation Centre, Cowley Road, Cambridge CB4 0WS | 01273930269 | |
| Cassidy Web Services Ltd | Unit 48 Canterbury Innovation Centre, University Road, Canterbury, Canterbury CT2 7FG | 03304455960 | |
| Castleton Technology Managed Services Ltd | Blackbrook House, Dorking RH4 1HJ | 01306 888000 | |
| CAT 5 Communication Ltd | 2 White Horse Yard, Towcester, Northampton NN12 6BU | 01604 924 631 | |
| CAT Communications Ltd | 3 Ashley Court, Henley, Marlborough, Wiltshire SN8 3RH | 01672 812 100 | |
| Cat5 Networks | 13 Victoria Road, South Woodham Ferrers, Chelmsford, Essex CM3 5LR | 01277244610 | |
| Catalyst Communications Networks Ltd | 88 Wood Street, London EC2V 7RS | 020 7871 3030 | |
| Catalyst2 | https://www.catalyst2.com/ | ||
| Catch IT Services Ltd | Unit 2a Herne Business Park, Herne Bay CT6 7FE | 01227 206989 | |
| Catch Telecom Ltd | Westward House, Glebeland Road, Camberley, Surrey GU15 3DB | 01276 590 000 | |
| Caultex Technology Ltd | Dingle House, Blackpond Lane, Farnham Royal, Bucks SL2 3EA | 0844 804 0123 | |
| Causeway Telecom Ltd | 70 Ballyrashane Road, Coleraine BT52 2LL | 02870326623 | |
| Cavaravan Warehouse UK Ltd | St Michaels Farm, Skegness Road, Burgh le Marsh, Skegness, Lincs PE24 5AA | 0845 127 8777 | |
| Cavendish Communications Ltd | Cavendish House, New Road, Newhaven, East Sussex BN9 0ES | 01273 615600 | https://www.cavcoms.com/ |
| Cavendish Maintenance Ltd | |||
| CB Comms Direct Ltd | 14 Ambergate Road, Liverpool L19 9AU | 07715640725 | |
| CBG Telecom Ltd | Amtech House Suite 5 and 6, Samson Close, Newcastle NE12 6DX | 08449672630 | |
| CC Engineering Ltd | 215 HIGH STREET, YIEWSLEY, WEST DRAYTON UB7 7QP | 0333 800 8800 | |
| Concept Coders Ltd | Grosvenor House, 3 Chapel Street, Congleton, Cheshire CW12 4AB | 07722566565 | |
| Cc360 Ltd | PINEWOOD HOUSE, CHINEHAM PARK, BASINGSTOKE RG24 8AL | 01256698355 | |
| Cchs Computer Services Ltd | 22 Sandfields Road, Aberavon, Port Talbot SA126LP | 01639509988 | |
| CCOMM IT Solutions | Media House, 2 Sandridge Park, Porters Wood, St Albans AL3 6PH | 01727758008 | |
| CCS Leeds Ltd | Unit A, Seacroft Trade Park, Coal Road, Leeds LS14 2AQ | 0113 294 6699 | |
| Ccs Media Ltd | Old Birdholme House, Derby Road, Chesterfield, Derbyshire S40 2EX | 01246 200 200 | |
| CCS2000 Ltd | 6 Brewery Close, Barker Business Park, Melmerby, Ripon HG4 5NL | 01765 606700 | |
| CCT Infotech Ltd | Matrich House, Goulton Street, Hull HU3 4DD | 01482 647 044 | |
| Cctech Cloud Ltd | 25 Miles East, Harwell, Didcot OX11 6EE | 07412678577 | |
| Ccuk (Sw) Ltd | The Dairy, Walls Lane, Crickham, Somerset BS28 4JT | 01934818440 | |
| CCW Solutions Ltd | 23 Chalybeate Street, Aberystwyth, Ceredigion SY23 1HX | 01970 600 006 | |
| CDK Global (UK) Ltd | Cygnet Way, Charnham Park, Hungerford RG17 0YL | 01635 215 003 | |
| CDN Networks Ltd | Warrington Lane, Lymm, Warrington WA130SW | 01612410556 | |
| CDS Networks Ltd | Broadfold Business Centre, Broadfold Road, Bridge of Don, Aberdeen AB23 8EE | 01224707360 | |
| CDS regeneration Ltd | 1 westminster road, macclesfield, cheshire SK10 3AH | 07889875014 | |
| CE Services Ltd | Martin Dawes House, Europa Boulevard, Warrington WA5 7WH | 01925 467 572 | |
| CECOM | 11 Pyle Road, Bishopton, Swansea SA3 3HH | 0800 019 8333 | |
| CED Services Ltd | 6070 Birmingham Business Park, Birmingham B37 7BF | 01217899646 | |
| Cedar Telecom Ltd | Innovation House, Mill Street, Oxford OX2 0JX | 01865 458 609 | https://www.cedar-telecom.co.uk/ |
| CELCOMS Ltd | 3l Bluebell CLose, Thornton-Cleveleys FY5 2ZJ | 01253 859242 | |
| CellCall Ltd | |||
| Cellcast UK | https://www.cellcast.tv/index.aspx | ||
| Cellhire PLC | , Park House, Clifton Park, York YO30 5PB | 01904 610 610 | https://www.cellhire.co.uk/ |
| CellPipe Ltd | Compass House, 7 Rook Road, Wooburn Green HP10 0PY | 01628 529 568 | |
| Cellsite Communications Ltd | 7 Station Road, Yate, Bristol BS37 5HT | 01454 881 821 | |
| Cellular Solutions & Services Ltd | Solutions House, Knoll Business Park, Old Shoreham Road, Hove BN3 7GS | 01273 424220 | |
| Cellular Solutions (North East) Ltd | Ferryboat House, Ferryboat Lane, Sunderland SR5 3JN | 01915165990 | |
| Cellular Solutions Network Services Ltd | Solutions House, Knoll Business Park, Old Shoreham Road, Hove BN3 7GS | 01273 424 220 | |
| Cellular UK Ltd | 8C & D HIGH STREET, POTTERS BAR EN65AF | 03338009888 | |
| Centerprise International Ltd | Lime Tree Way, Basingstoke RG24 8GQ | 01256 378000 | |
| Central Communications Ltd | 37 Antony Road, Birmingham B90 2NX | 03333661110 | |
| Central IT Ltd | Unit 18 Pottery Court, Pottery Way, Bulwell, Nottingham NG6 8GN | 0845 888 4634 | |
| Central IT Solutions Ltd | AMCO House, Acanthus Road, Redditch B98 9EX | 01527 908 679 | |
| Central Networks and Technologies Ltd | Sandbrook Way, Sandbrook Park, Rochdale OL11 1LQ | 01706747474 | |
| Central Support Technologies Ltd | The Pump House, Stag Place, Wooburn Town, Wooburn Green HP10 0TT | 01628 531400 | |
| Central Technology Ltd | The Bridge Business Park, Beresford Way, Chesterfield, Derbyshire S41 9FG | 01246 266130 | https://www.ct.co.uk/ |
| Central Telecommunications Ltd | 50 Hagley Road, Halesowen B63 4RH | 0121 271 0200 | |
| Centralinc Systems Ltd | 22 Park Road, Holbeach, Spalding PE12 7EE | 01406426768 | |
| Centrepoint Technology Solutions Ltd | Southbridge House Southbridge Place, Croydon CR0 4HA | 020307409225 | |
| Centriq Ltd | 8 The Square, Stockley Park, Uxbridge, Middlesex UB11 1FW | 03302207115 | |
| Centriware Technologies Ltd | Kemp House, 152 - 160 City Road, London EC1V2NX | 02074594457 | |
| Centrix Ltd | Winchfield Lodge, Old Potbridge Road, Winchfield, Hampshire RG27 8BT | 0870 143 4343 | |
| Centro Webnet Ltd | 17 Union Street, Bridgtown, Cannock WS11 3BY | 01543 574 422 | |
| Century Systems Solutions Ltd | ground floor bury house, 31 bury street, london EC3A 5AR | 0203 002 3583 | |
| CenturyLink Communications UK Ltd | 230 Wharfedale Road, Winnersh Triangle, Wokingham Berks RG41 5TP | 0800 496 5000 | https://www.centurylink.com/ |
| CER Associates Ltd | 34 Beaufort Avenue, Blackpool, Lancashire FY2 9HG | 01253 500 555 | |
| Cerberus Networks Ltd | 9 Walmagate Road, Greenford, Middlesex UB6 7LH | 0845 2571333 | https://cerberusnetworks.co.uk/ |
| Cerl Networks Ltd | Suite 13, 7 Beach Road, South Shields, Tyne and Wear NE33 2QA | 0191 406 0400 | |
| Certum Ltd | 201 Bath Street, Glasgow G24HZ | 0345 872 9728 | |
| Certus Communications Ltd | Suite 3.2, 111 Union Street, Glasgow G1 3TA | 0845 520 5999 | |
| Certus IT Ltd | Redcliff House, Hazell Drive, Celtic Springs, Newport NP10 8FY | 0333 370 8090 | |
| Cerulean Solutions Ltd | Solar House, 282 Chase Road, London N14 6HA | 0845 230 6670 | |
| Cervantes Telecom Ltd | 79 College Road, Harrow HA1 1BD | 0330 088 3200 | |
| CESG | |||
| CETSAT Ltd | Telstar House, Mead Avenue, Houndstone Business Park, Yeovil BA22 8RT | 08450948777 | |
| CF Systems Ltd | Stanley Way, Cardrew Industrial Estate, Redruth, Cornwall TR15 1SP | 01209 340 040 | |
| CFL Communications Ltd | Abbey House 25 Clarendon Road Redhill RH1 1QZ | 0845 186 0000 | http://www.cflmedia.com/ |
| Cgeeks Ltd | Orchard Street Business Centre, 13-14 Orchard Street, Bristol BS1 5EH | 01173250370 | |
| CH Business Resources Ltd | 34 Homlesdale Road, Highgate N6 5TQ | 020 8341 0111 | |
| Chain Telecom Ltd | 21 West Street, Storrington, West Sussex RH20 4DZ | 0844 887 7000 | http://www.chaintelecom.co.uk/ |
| Challenger Mobile Communications Ltd | Parkway, Deeside Industrial Park, Deeside, Flintshire CH5 2NS | 01244837837 | |
| Challenger Technology Ltd | 10 Mercury Rise, Altham Business Park, Altham BB5 5BY | 01282560486 | |
| Chalvington Communications Ltd | Units 6&7 Apex Business Park, Diplocks Way, Hailsham, East Sussex BN27 3JU | 01323 440 555 | https://www.chalvingtoncomms.co.uk/ |
| Chambers Technology Support Ltd | 15 New Bridge Street, London EC4V 6AU | 0845 621 9800 | |
| Chameleon Codewing | https://www.thechameleongroup.co.uk/ | ||
| Chameleon Support Ltd | The Business Place, Unit 8,, Park Road, Mansfield NG19 8ER | 08443 575837 | |
| Chandler Computers Ltd | 45 Anstey Fields, Birmingham B23 5RL | 01213644545 | |
| Change Connect Ltd | 27, Wootton Street, Southwark, London SE1 8TG | 02079236032 | |
| Channel IP | https://www.channelcomms.co.uk/ | ||
| Channel IT | https://www.channelcomms.co.uk/ | ||
| Channel Network Services | https://www.channelcomms.co.uk/ | ||
| Channel Networks Services Ltd | Channel House, 127 Duckmoor House, BRISTOL BS3 2BJ | 0117 900 5000 | |
| Channel Partners Ltd | The Bothy, Albury Park, Albury GU5 9BH | 01483 205011 | |
| Channel Telecom Ltd | Channel House, 78 High Street, Epping CM16 4AE | 0845 330 0015 | https://www.channeltelecom.com/ |
| Channel Utilities Ltd | CT, House, Hertfordshire, HARPENDEN AL5 5NT | 08001444465 | |
| Charles Briscoe-Smith - | 150 Westway, London SW20 9LS | 020 8542 0505 | |
| charles hutchinson consultancy ltd | TITANIC OFFICES, 55-59 ADELAIDE STREET, BELFAST BT2 8FE | 0289033999 | |
| Charles Street Communications Ltd | 6 Duke Street, St Jame's, London SW1Y 6BN | 020 7451 1313 | |
| Charles Street Solutions Ltd | 28 Throgmorton Street, 2nd Floor, London EC2N 2AN | 02072562288 | |
| Charlton Networks Ltd | The Canterbury Business Centre, 18 Ashchurch Road, Tewkesbury, Gloucestershire GL20 8BT | 001684 856830 | |
| Charter Software Ltd | The Coach House, Summerhill, Smallhythe Road, Tenterden TN30 7NB | 0117 230 6992 | |
| Charterhouse Voice & Data PLC | Gate House, 5 Chapel Place, Rivington Street, London EC2A 3DQ | 020 7613 7395 | https://www.cvd.plc.uk/ |
| Chase Telecom Ltd | 2/7 Canon Lane, Edinburgh EH3 5HD | 0131 557 2771 | |
| Chat Network (UK) Ltd | 71-75 Shelton Street, London WC2H 9JQ | 08443510661 | |
| Chata TS Ltd | The Whitbread Centre, Rhymney NP225XE | 01495491001 | |
| Chauhan Ltd | 3 Mercia Village, Torwood Close, Westwood Business Park, Coventry CV4 8HX | 02476998229 | |
| Cheap Calling | https://www.cheapcalling.co.uk/ | ||
| Cheap Calls | Haarlemmerstraatweg 32, 2343 LB Oegstgeest, The Netherlands | http://www.cheapcalls.co.uk/ | |
| Cheaper International Calls | https://cheaperinternationalcalls.co.uk/ | ||
| CheapestChat | PO Box 20338, London NW11 9ZW | 0870 041 2214 | https://www.cheapestchat.com/ |
| Check Communications Ltd | |||
| Checkmybills Ltd | 189a Rochdale Road, Oldham OL1 2HX | 07791976455 | |
| Cherry Call | Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ | 0344 332 1444 | https://cherry-call.co.uk/ |
| Cheshire Business Services (2008) Ltd | 89-91 Buxton Road Heaviley, Stockport SK2 6LR | 0161 487 3332 | |
| Chess Ltd | Bridgford House, Heyes Lane, Alderley Edge, Cheshire SK9 7JP | 0844 770 6000 | https://chessict.co.uk/ |
| Chesterfield Associates | Fitzroy House, Lynwood Drive, Worcester Park, Surrey KT4 7AT | 020 8715 0200 | |
| Chi Technology Ltd | Hilken House, 10 Shottery Brook Office Park, Timothys Bridge Road, Stratford-upon-Avon CV37 9NR | 01789404707 | |
| Chicane Internet Ltd | Pegasus 1 Orion Business Park, Gt.Blakenham, Ipswich, Suffolk IP6 0LW | 020 3137 4445 | |
| Chilli Comms Ltd | 14 Pennycress, Lyde Green, Bristol BS16 7GG | 01173 700 247 | |
| Chilli Telecom Ltd | New Chartered House, Centuriion Way, Cleckheaton, West Yorkshire BD19 3QB | 0844 8710181 | |
| Chillitalk Ltd | 54 Marsh Wall, London E14 9TP | 020 7179 9980. | https://www.chillitalk.com/ |
| Chiltern Telecom Ltd | 13 St Mary's Glebe, Edlesborough LU6 2RB | 01582 604 040 | https://www.chilterntelecom.co.uk/ |
| Chime Telecom Ltd | |||
| China Mobile International Ltd | Level 30, Tower 1, Kowloon Commerce Center, 51 Kwai Cheong Road, Kwai Chung, Hong Kong | (852) 3155 6986 | https://www.cmi.chinamobile.com/ |
| China Mobile International (UK) Ltd | 90 Cannon Street, London EC4N 6HA | 0044-2079339190 | |
| China Telecom (Europe) Ltd | 2nd Floor Bellerive House, 3 Muirfield Crescent, London E14 9SZ | 020 7536 8340 | |
| Chitt-Chatt Communications Ltd | 160 CITY ROAD, LONDON EC1V2NX | 08438860008 | |
| Choice Numbers Ltd | Oakfield, Wrotham Hill Road, Wrotham, Sevenoaks, Kent TN15 7PT | 020 7047 4446 | |
| Choice Telecommunications Ltd | Ground Floor, 11 Pelham Court, Crawley, West Sussex RH11 9SH | 0800 875 88 88 | |
| Cholty35 Holdings Ltd | 1 Adam Street, London WC2N 6AB | 02038661750 | |
| Choose Broadband Ltd | Top Apartment, 33 South Road, Lancaster LA1 4XJ | 0152466909 | |
| Chorus IT Ltd | 1 Serbert Way, Portishead, Bristol BS20 7GD | 01275 398 900 | |
| Christian James Ventures Ltd | 309 London Road, Camberley, Surrey GU15 3HE | 01276 817 444 | |
| christopher henson | 1 Kemps Close, Kettering NN141GQ | 07979693699 | |
| Christopher Stephenson | Craigdarroch, Abbey Gardens, Fort Augustus PH32 4BG | 01320366256 | |
| Chrome Telecom Ltd | 106 Kiln Road, Fareham PO16 7UN | 01329 482 516 | |
| Chrono Web Ltd | 16 Wilson Close, York YO433NW | 07502369597 | |
| CHS Networks | 88 Judd Road, Tonbridge, Kent TN9 2NJ | 0845 644 1566 | |
| ChunkyChips.net Ltd | ChunkyChips.net Ltd, Units 1-2 Cornell Estate, Navigation Road, Chelmsford,Essex CM2 6HE | 0870 255 8000 | |
| Chur Holdings Ltd | 38 Sailacre House, London SE10 0JD | 001323 470 2143 | |
| CIMS Networks Ltd | Halifax House, 93-101 Bridge Street, Manchester M3 2GX | 0161 6694672 | |
| Cinos Ltd | Unit 4.9 Hitech, Frimley 4 Business Park, Frimley, Camberley GU16 7SG | 02038802026 | |
| Cinos Communications Services ltd | Cranfield Innovation Centre, University Way, Cranfield MK43 0BT | 0203 841 9970 | |
| Cipher IT Services Ltd | 100 Ock Street, Abingdon OX14 5DH | 01235884797 | |
| Ciptex Ltd | Unit 2, Woodingdean Business Park, Sea View Way, Brighton BN2 6NX | 0845 880 8080 | https://www.ciptex.com/ |
| Circle Cloud Communications Ltd | 32 Queens Terrace, Southampton SO14 3BQ | 03330436600 | |
| Circle Communications Ltd | 23 Goodrich Grove, Coedkernew NP10 8SY | 0800544644 | |
| Circle Computers Ltd | Chipping Court, 1 Chipping Hall Barns, Chipping, Herts SG9 0DP | 01707 818 085 | |
| Circle IT Solutions Ltd | 2 Lime Tree Court, Mulberry Drive, Cardiff Gate Business Park, Cardiff CF23 8AB | 0330 333 8001 | |
| Circle LCR Ltd | 2 Limetree Court, Mulberry Drive, Cardiff Gate Business Park, Cardiff CF23 8AB | 0333 323 0380 | |
| CircleNet LLP | 12, Horne Close, West End, Southampton SO18 3AE | 02380476645 | |
| Cirrus 3 Ltd | 145-157 St John street, London EC1 4PW | 08451800936 | |
| Cirrus Blue Ltd | 19 Canonsfield, Werrington, PETERBOROUGH PE4 5AQ | 01733235000 | |
| Cirrus IT Services (UK) Ltd | 6 Smirthwaite Street, Burnley BB11 4AZ | 03303500252 | |
| Cirrus Response Ltd | 3-5 Red Lion Street, Richmond, Middx TW9 1RJ | 0330 404 2150 | https://www.cirrusresponse.com/ |
| Cisilion Ltd | Guildford Road, Leatherhead KT22 9UT | 087 0152 5750 | |
| Citrus Networks UK Ltd | Orchard House, 85 Mosslea Road, Whyteleafe, Surrey CR3 0DS | 020 7100 2410 | |
| Citrus Telecommunications Ltd | 99 Holdenhurst Road, Bournemouth BH8 8DY | 01202 317657 | https://www.citrustelecom.com/ |
| City Business Solutions UK Ltd | High Holborn House, 5th Floor, 49-51 Bedford Row, London WC1R 4LR | 02033557334 | |
| City Communications Ltd | 64 Amy Street, Leicester LE3 2FB | 0116 303 3234 | https://www.city-communications.co.uk/ |
| City Numbers Ltd | 1st Floor, 2 Marlin Office Village, 1250 Chester Road, Birmingham B35 7A | 0845 366 6555 | https://www.citynumbers.co.uk/ |
| city properties management ltd | 100a Northwold Rd, London E5 8RL | 02075027447 | |
| City Voice & Data Ltd | 152-160 City Road, London EC1V 2NX | 0845 5192622 | |
| Citycom Technologies Ltd | 70 St Mary Axe, London EC3A 8BE | 02078704841 | |
| Citytalk Communications Ltd | Unit 8 Bridgegate Business Park, Gatehouse Way, Aylesbury, Bucks HP19 8XN | 0845 618 9828 | https://www.citytalk-comms.co.uk/ |
| Citytalk Group Ltd | Hewgate House, Rabans Lane, gatehouse ind est, Aylesbury HP19 8RT | 01296744310 | |
| Citytalk Midlands Ltd | 7 The Hayes, Lye, West Midlands DY9 8NX | 01384 887733 | https://www.citytalk-mids.co.uk/ |
| Citytel Telecommunication Ltd | fernhills house, Todd Street, Bury, Gtreater Manchester BL9 5BJ | 02030115118 | |
| Civica UK Ltd | Vanguard House, Dewsbury Road, Leeds LS11 5DD | 0113 244 1404 | |
| CIX (ICUK Computing Services Ltd) | Suite 5, Metropolitan House, 38-40 High Street, Croydon CR0 1YB | 033 0053 8548 | https://cix.uk/ |
| CIX Online Ltd | 1-3 Pampisford Road, Purley, Surrey CR8 2NG | 08450 099175 | |
| CJ Systems Ltd | Exchange House, Taunton TA1 4EB | 01823478515 | |
| CJP Telecoms LTD | 6 Kelvin Close, Old Basing, Basingstoke RG247AP | 07725829930 | |
| CKA Telecoms Ltd | 3 High Street, Eastchurch, Sheerness ME12 4BN | 01795602123 | |
| CL Servers Ltd | Unit 67, Stirling Enterprise Park, Stirling FK7 7RP | 01786388618 | |
| claireLOGIC Corporate Ltd | 11 Vineyard, Abingdon OX14 3PX | 01865989144 | |
| CLANNET Broadband Ltd | The Gale, Stockbridge House, Cawood, Selby YO8 3UJ | 01757 668179 | |
| Claranet | 21 Southampton Row, London WC1B 5HA | 020 7685 8310 | |
| Claranet Soho | https://www.claranetsoho.co.uk/ | ||
| Clarion Communication Management Ltd | Unit 5, 107 Freston Road, London W11 4BD | 08456 444 585 | https://www.clarioncomms.com/ |
| Clarion Information Systems Ltd | Unit M26 Hastingwood Ind Park,, Wood Lane, Erdington, Birmingham B24 9QR | 01216631214 | |
| Claritas Solutions Ltd | Bowcliffe Hall, Bramham, Wetherby LS23 6LP | 01937 849966 | |
| Claritel Ltd | Suite 19, Blackburn Rovers Enterprise Centre, Nuttall Street, Blackburn BB2 4JF | 0844 412 8050 | |
| Clarity Document Solutions (Bham Regional) | 100 Hagley Road,, Birmingham B16 8QQ | 0330 123 2254 | |
| Clarity Telecom Ltd | Number One, Lanyon Quay, Belfast BT1 3LG | 028 9027 0050 | https://claritytele.com/ |
| Clarity voice & data communications Ltd | 100 Harringdale Road, High Harrington, Cumbria, Workington CA14 4NU | 01697320011 | |
| Clark Computers Ltd | Auchterless, Turriff, Aberdeenshire AB53 8EP | 01888 511 441 | |
| Claro Communications Ltd | 4 Sceptre House, Hornbeam Square North, Hornbeam Park, Harrogate HG2 8PB | 01423535333 | |
| Clarus Communications Ltd | Hudson House, 8 Albany Street, Edinburgh EH1 3QB | 01312734688 | |
| Class Affinity Projects Ltd | The White House, Church Road, Leatherhead, Surrey KT22 8BB | 0870 770 0321 | |
| Cleanline Installations Ltd | Terminal House, Station Approach, Shepperton, Middlesex TW17 8AS | 01932 260490 | |
| Clear Business Ltd | Universal House, Longley Lane, Manchester M22 4SY | 0333 014 3131 | https://www.clearbusiness.co.uk/telecoms/ |
| Clear Computing Ltd | 14b Brookside Business Park, Brookside Avenue, Rustington, West Sussex BN16 3LP | 01903 786 702 | |
| Clear Connections Europe Ltd | 3rd Floor, 207 Regent Street, London, London W1B 3HH | 02037288790 | |
| Clear Picture Services Ltd | 351b Northdown Road, Margate CT9 3PB | 01843380750 | |
| Clear Telecom and Data Ltd | 41 Progress Road, Leigh-on-Sea, Essex SS9 5PR | 01702 512 990 | https://www.cleartelecom.co.uk/ |
| Clearbase Solutions Ltd | Clearbase Solutions Ltd, Globe Works, Penistone Road, Sheffield S6 3AE | 0845 3710289 | |
| Clearcall 2000 Ltd | Unit 40, The Enterprise Centre, Cranbourne Road, Potters Bar, Hertfordshire EN6 3DQ | 0800 027 7066 | |
| Clearchoice Telecom Ltd | 326, Greenway Road, Rumney, Cardiff CF3 1QR | 0+447869749494 | |
| Clearer Solutions Ltd | 1a West Kent Avenue, Northfleet DA119HL | 07495561197 | |
| ClearlyIP Distribution | Regus House, 400 Thames Valley Park Drive, Thames Valley Park, Reading RG6 1PT | 01184640868 | |
| Clearstream technology Ltd | Tredomen Innovation & Technology Centre, Tredomen Business Park, Ystrad Mynach, Hengoed CF82 7FN | 0845 867 4075 | |
| Cleartalk Telecom (UK) Ltd | 48 Claredon Road, Audenshaw, Manchester M34 5QB | 0161 355 8836 | |
| Cleartech Communications Ltd | 2nd Floor, 1 Atlas House, St Georges Square, Bolton BL1 2HB | 03333603861 | |
| Cleartone Communications Ltd | 78 York Street, London, W1H 1DP | 020 7101 4045 | https://www.cleartonecommunications.co.uk/ |
| Clearview Network Ltd | Unit 3,, 1a Northinch Court, Glasgow G14 0UG | 01412510040 | |
| Clearwave Enterprise Solutions Ltd | 5 Audax Court, York YO30 4RB | 01904 409 940 | |
| Clearway Telecom Ltd | Calverley House, 55 Calverley Road, Tunbridge Wells, Kent TN1 2TU | 01892 74166 | |
| ClevaGroup Ltd | Mill Studio, Ware SG12 8PY | 03333 448 300 | |
| Clevernet Uk Ltd | Direct Line Communication, 64 Upper Mulgrave Road, Cheam, Sutton SM2 7AJ | 03308087777 | |
| Click Right Ltd | 16 Gretton House, 305 Globe Road, London E2 0NT | 02089835727 | |
| Clickifi Ltd | Graphic House, 14-16 Sussex Road, Haywards Heath RH16 4EA | 01444 225900 | |
| Clicknetworks Ltd | 1 Tennant Avenue, College Milton, South East Kilbride G74 5NA | 0141 530 9116 | |
| Clickphone Communications Ltd | Unit 9 17 Piries Place Horsham West Sussex RH12 1BF | 01403 339 809 | |
| Clickphone Communications Ltd | Castleton House, Heathside, Esher, Surrey KT10 9TB | 020 3434 2711 | |
| Clifton Computer Care Ltd | CCCit The Waterfront, Welsh Back, Bristol BS14SB | 01173700050 | |
| Clik3 Ltd | SUITE 7, CENTRAL OFFICE BUSINESS DEVELOPMENT CENTRE, STAFFORD PARK 4, TELFORD, SHROPSHIRE TF3 3BA | 08449951989 | |
| Clocom UK Ltd | 111 Wilmslow Road, Handforth, Wilmslow, Cheshire SK9 3ER | 03333446677 | |
| Clogher Valley Communications | 24 Main Street, Augher, Co Tyrone BT77 0BD | 028 855 49869 | |
| Cloud & Fibre Ltd | Communication House, Parkway, Deeside CH5 2NS | 0161 260 0196 | https://www.cloudandfibre.co.uk/ |
| Cloud 4 Sure Ltd | 3 Lawrence Avenue, Rustington BN16 3HU | 01903339955 | |
| Cloud 9 IP Ltd | 4 Beechfield House, West Bar street, Banbury OX16 9RR | 0333 210 8990 | |
| Cloud 9 Technology Solutions Ltd | 1st Floor, 114 Ashley Road, St Albans, Hertfordshire AL1 5JR | 01727 834 252 | |
| Cloud Business | 8 North Street, Guildford, Surrey GU1 4AF | 0845 680 8538 | |
| Cloud Business Communications Ltd | Stratton House, 14 Shirley Road, Ripley, Derbyshire DE5 3HB | 01773 768888 | |
| Cloud Cambridge Ltd | 5 The Quay, St Ives, Cambridgeshire PE27 5AR | 01480262222 | |
| Cloud Geeks Ltd | 82A, Singer Way, Woburn Rd Ind Estate, Kempston MK42 7PU | 01234 889988 | |
| Cloud Intellect Ltd | Unit 16, Eckland Lodge Business Park, Desborough Road, Market Harborough LE16 8HB | 03336 661036 | |
| Cloud IT Ltd | Wenta Business Centre, Colne Way, Watford WD24 7ND | 01923 606 268 | |
| Cloud Nine Telecom Ltd | Moulsham Mill, Parkway, Chelmsford, Essex CM2 7PX | 0800 988 7473 | |
| Cloud Nine Voice And Data Ltd | 4th Floor,, Victoria House, Victoria Road, Chelmsford CM1 1JR | 08082505000 | |
| Cloud Nu Ltd | 3 Ryder Avenue, Altrincham, Cheshire WA14 1LX | 01618706377 | |
| Cloud One IT Ltd | 152-154 Coles Green Road, London NW2 7HD | 0203 051 2521 | |
| Cloud Phone Co Ltd | Humberdale Farm, South Farm Road, Sunk Island, Hull, East Yorkshire HU12 0AT | 01482770393 | |
| Cloud Shepherd Ltd | Unit 3, Elgar Business Centre, Moseley Road, Hallow, Worcester WR2 6NJ | 0800 368 7373 | |
| Cloud Software Systems Ltd | 5 Crown Street, Aberdeen AB116HA | 01224 518400 | |
| Cloud Space (UK) Ltd | Metropolitan Wharf Building, 70 Wapping Wall, London E1W 3SS | 020 7749 6898 | |
| Cloud Telecom Ltd | Unit 3 Kingfisher House, New Mill Road, Orpington, Kent BR5 3QG | ||
| Cloud Voice And Data Ltd | 57a Church Street, Seaford, East Sussex, East Sussex BN25 1LD | 01323407775 | |
| Cloud Zion Ltd | Office F1, 49-50 Bradford Street, Birmingham WS1 3QD | 03300437212 | |
| Cloud1990 Ltd | Standroyd Mill, Cottontree Lane, Colne BB8 7BW | 08009101990 | |
| Cloud2tel Ltd | 14 Mall Chambers, Kensington Mall, London W8 4DY | 07776222101 | |
| Cloud38 Ltd | Suite 42, Shenley Pavilions, Milton Keynes MK5 6LB | 03300947580 | |
| Cloud4 Computers Ltd | Acorn Business Centre, Acorn Court, Butt's Street, Leigh WN7 3DD | 01618501264 | |
| Cloud9 Communications Ltd | Pinewood, Chineham Business Park, Crockford Lane, Chineham, Basingstoke, Hants RG24 8AL | 01277 779100 | https://www.cloud9mobile.co.uk |
| Cloud9 Telephony Ltd | Darwin House, The Innovation Centre, Kingswinford, West Midlands DY6 7YB | 0121 546 0405 | https://www.cloud9.uk.com/ |
| Cloud9ine Communications LTD | 71-75 Shelton Street, London WC2H 9JQ | 03333583353 | |
| Cloudamour Ltd | 5 Hercules Way, Leavesden Park, Watford WD25 7GS | 020 3002 4111 | |
| CloudCall Ltd | 1 Colton Square, Leicester LE1 1QH | 033 0335 0000 | https://www.cloudcall.com/ |
| Cloudcell Technologies Ltd | 9 GREEN CLOSE, GREEN CLOSE, LONDON NW9 8AT | 02036675490 | |
| Cloudcoco Ltd | One Aire Street, Leeds LS1 4PR | 03330503990 | |
| Cloudconnx Ltd | 1 Grove Road, Eastbourne BN21 4TW | 0845 450 0550 | |
| CloudCover IT Services Ltd | 131 - 133 Minerva Street, Glasgow G3 8LE | 0141 280 2882 | |
| Cloud-Everywhere | https://www.cloud-everywhere.co.uk/ | ||
| Cloudnet Computing Ltd | 411 Scott House, The Custard Factory, Gibb Street, Birmingham B94DT | 08452007767 | |
| Cloudnet Infinity Ltd | Suite 1209, 109 Vernon House, Friar Lane, Nottingham NG16DQ | 02089383513 | |
| Cloudnet IT Solutions Ltd | Quoygrew, Tankerness, Orkney KW17 2QR | 01856 520 138 | |
| CloudScape Connect Ltd | Unit Q, Troon Way Bus Ctr, Humberstone Lane, Leicester LE4 9HA | 0116 274 7360 | https://www.cloudscapeconnect.com/ |
| Cloudscape Network Systems Ltd | 47 Oxford Drive, London SE1 2FB | 020 7403 3705 | |
| Cloudsteps Ltd | 69 Farmleigh Drive, Crewe CW1 3PY | 01270440044 | |
| Cloudtelephones Ltd | Harvey House, St Edwards Court, London Road, Romford RM7 9QD | 01708756555 | |
| CloudVPS Ltd | 83 Duice Street, Manchester M1 2JQ | 03303541231 | |
| Clouvider Ltd | 88 Wood Street, London EC2V 7RS | 0800 566 8160 | |
| Clover IT Contracts Ltd | 15 Union Street, Melbourne, Derby DE73 8FY | 01332650670 | |
| Clovertec Ltd | 4330 First Floor, Park Approach, Leeds LS15 8GB | 0113 887 3710 | |
| Clq Telecoms Ltd | 21, Wingfield Avenue, Maulden, Bedford MK45 2DU | 07419811195 | |
| Club Communications Ltd | The Hub, Stonehouse Business Park, Stonehouse, Glos GL10 3UT | http://www.club-comms.co.uk/ | |
| Club Talk Ltd | Ailesbury Close, Chippenham, Wiltshire SN15 3TX | 08712 310 410 | |
| ClubWizard Ltd | 67-69 Whitfield Street, London W1T 4HF | 0844 991 3786 | |
| CLX CommunicationsLtd | Cap House, 9-12 Long Lane, London EC1A 9HA | 020 8033 7761 | https://www.clxcommunications.com |
| Clyde Jordaan | St Peters way, Cambridge PE280AX | 07912532788 | |
| Clyde Solutions Ltd | 22 Payne Street, Glasgow G4 0LF | 0141 353 4350 | |
| CM Comms ltd | Westercroft Cottage, Symington KA29AT | 07743359321 | |
| CMC Digital Ltd | Unit 1, Forest Road Industrial Estate, South Sheilds, Tyne and Wear NE33 1PT | 0191 427 9244 | |
| CML Microcircuits (UK) | https://www.cmlmicro.com/ | ||
| CMM Telecoms Ltd | C3 Endeavour Place, Coxbridge Business Park, Farnham GU10 5EH | 01252854352 | |
| CMR Consultants Ltd | |||
| CMS Broadband | https://www.cmsbroadband.net/ | ||
| Cms Managed Services Ltd | Briar Cottage, South Street, Normanton on Trent NG23 6RQ | 07823389928 | |
| CMT | http://www.cmtelecom.info/ | ||
| CN Telecom Ltd | 17 Nobel Square, Basildon, Essex SS13 1LP | 01268 720 190 | |
| CNS Communications Ltd | 47 Oxford Drive, London SE1 2FB | 020 7403 3705 | |
| CNS Computer Networks Ltd | Transport Hall, Gloucester Road, Avonmouth, Bristol BS11 9AQ | 01179829666 | |
| CNS IT Ltd | 4 The Courtyard, Mollington Grange, Chester CH1 6NP | 01244 851 866 | |
| CNW Communications Ltd | |||
| Coactive ICT Ltd | Unit 14, Meridian House, Road One, Winsford CW7 3QG | 0330 200 0554 | |
| Coast Technology Ltd | Wellwood House, Dark Lane, Morpeth, Northumberland NE61 1SU | 0191 580 0220 | |
| Coastal Telecom Ltd | Colonial House, Station Road, Leiston IP16 4JD | 01728 635141 | |
| Coates Consulting Ltd | 11 Leven Road, Lundin Links, Fife KY8 6AQ | 01333 329 118 | |
| Cobak Communications Ltd | 882-A Alum Rock Road, Birmingham B8 2TY | 07454964634 | |
| Cobalt & Silver Ltd | 16 Oakhill Road, Doncaster DN2 5NX | 0333 2100 345 | |
| Cobalt Communication Solutions Ltd | 2a North Street, Heavitree, Exeter, Devon EX1 2RH | 0139 290 8888 | |
| CoBIT South West Ltd | Chy Melyn, Shortlanesend TR4 9DE | 0845 6422652 | |
| Cobus Ltd | Empire House, 22 Strickland Street, Hull, East Yorkshire HU3 4AQ | 01482 421070 | |
| Coconnect Ltd | Harbour House, Hamilton Road, Portsmouth PO6 4PU | 02392 322 500 | |
| Code Zero Ltd | 47 Coach Road, Hamble, Southampton SO31 4LA | 07900243985 | |
| Codeblue Communications Ltd | 2 Spring Bank, Huddersfield HD15NB | 01484 441469 | |
| Cognito Software Ltd | 31 Church Street, Oldbury B69 3AG | 0121 314 7745 | |
| Cohesion Communications Ltd | 3 The Green, Stratford Road, Solihull B90 4LA | 0121 794 9297 | |
| Colbek Systems Ltd | 1 Colbek Court, Haunchwood Park Drive, Galley Common, Nuneaton CV10 9SP | 024 7639 7070 | |
| Colemans of Bedford | 28 High Street, Higham Ferrers, Wellingborough NN10 8PA | 07860 774411 | |
| Colins IT Ltd | Unit 1 Curriers Close, Coventry CV4 8AW | 02476960946 | |
| CoLocker Ltd | Cedar House, Vine Lane, Hillingdon UB10 0NF | 01908 886560 | |
| Colt Technology Services Ltd | Beaufort House, 15 St. Botolph Street, London EC3A 7QN | 020 7390 3900 | https://www.colt.net/ |
| Coltel Communications Ltd | Unit 1, Tyseal Base, Craigshaw Crescent, Aberdeen AB12 3AW | 01224899299 | |
| Columbus Telecom Ltd | Milngavie Enterprise Centre, Ellangowan Court, Glasgow G62 8PH | 0870 060 3602 | https://www.columbusuk.com/ |
| Columbus Telecom Solutions Ltd | 1 Colquhoun Drive, Bearsden, Glasgow G61 4NQ | 0141 943 1943 | |
| Columbus UK | https://www.columbusuk.com/ | ||
| Com Management Inc | |||
| Comart Holdings Ltd | Technology House, Ridge Road, Rotherham S65 1NS | 01709 363418 | |
| Combat I.T Solutions LTD | 423 Lancaster Road, Morecambe LA46NB | 01524489101 | |
| ComBination IT Solutions Ltd | Hope Park Business Centre, Bradford BD5 8HH | 08452575853 | |
| Combined Outsourcing Ltd | 86 motherwell road, hartlepool TS25 3QX | 07595944057 | |
| Combitel Ltd | 37 Rhos Road, Rhos-on-Sea, Conwy LL28 4RS | 01492542421 | https://www.combitel.co.uk/ |
| Comcen Computer Supplies Ltd | Bruce Road, Swansea West Ind Park, Swansea SA5 4HS | 01792 515 566 | |
| Comex IT Ltd | County House,, Beaufort Road, Swansea SA6 8JG | 08447 706262 | |
| Comis Technology Ltd | 162-168 Regent St, London W1B 5TD | 02037407190 | |
| Commercial Ltd | Commercial House, Liddington Park, Old Station Drive, Leckhampton, Cheltenham GL53 0DL | 01242 703 400 | |
| Commercial Business Communications Ltd | 26 Hastings Road, Leyland PR25 3SP | 03333447769 | |
| Commercial Networks Ltd | Hill Quays, 14 Commercial Street, Manchester M15 4PZ | 03334443455 | |
| Commercial Technology and Development Services Ltd | The Lodge, Tannery Court, Tanners Lane, Warrington, Cheshire WA2 7NA | 01925 563 678 | |
| Commexchange Ltd | Unit 2, Knowl Piece, Wilbury Way, Hitchin SG4 0TY | 01462 426 500 | |
| Commi Holdings Ltd | Overdene House, 49 Church Street, Theale, Reading RG7 5BX | ||
| Commify UK Ltd | 20 Wollaton Street, Nottingham NG1 5FW | 0345 356 5758 | https://www.commify.com/ |
| Commplete Ltd | The Custom House,, Barnstaple EX311EU | 0333 2226644 | |
| Commpliment Ltd | Commpliment House, Upcott Park, Pottington Business Park, Barnstaple, Devon EX31 1AD | 0800 019 2217 | https://www.zeroseventelecom.com/ |
| Commpoint Ltd | 56 CHRISTIAN FIELDS, LONDON SW16 3JZ | 02086960299 | |
| comms 365 | https://www.comms365.com/ | ||
| Comms Coefficient Ltd | 3, Tannery House, Tannery Lane, Send GU23 7EF | 02034189000 | |
| Comms Consulting Ltd | 30a Elm Hill, Norwich NR3 1HG | 01603 483730 | https://www.comms-consulting.co.uk/ |
| Comms FM | https://www.commsfm.com/ | ||
| Comms Group (UK) Ltd | Unit 2 IO Centre, Barn Way, Lodge Farm, Northampton NN5 7UW | 01604 589000 | https://www.commsgroup.com/ |
| Comms IP Ltd | Senator House, 2 Graham Road, London NW4 3HF | 020 8266 2800 | |
| Comms Management Ltd | Connaught House, Riverside Business Park, Benarth Road, Conwy, North Wales LL32 8UB | 0845 450 3040 | https://www.commsmanagement.co.uk/ |
| Comms Management Wales | https://www.commsmanagement.co.uk/ | ||
| Comms Network Ltd | Unit 2, 26 Clayton Crescent, Brentford, Middlesex TW8 9PT | 0844 410 8201 | |
| Comms Provider LLP | The Continuum, Moderna Business Park, Mytholmroyd, West Yorkshire HX7 5QQ | 0845 855 0700 | |
| Comms Recycling Ltd | Unit 87 Thomas Way, Lakesview International Business Park, Hersden, canterbury CT34NH | 01227200318 | |
| Comms Review Ltd | 37 The Marlowes, Hemel Hempstead HP1 1LD | 01582872180 | |
| Comms Solutions Ltd | 1 Sherman Road, Bromley, Kent BR1 3JH | 020 8313 6684 / 6680 | |
| Comms Solve | 1a Church Lane, Sarratt, Hertfordshire WD3 6HN | 0845 345 1454 | |
| Comms Source Ltd | 96 Darwen Street, Blackburn BB2 2AJ | 01254 661 100 | |
| Comms Uk Ltd | Unit 8 Victory Close, Woolsbridge Industrial Park, 3 Legged Cross, Wimborne Dorset BH21 6SX | 01202 823400 | https://www.comms.uk.com/ |
| Comms Unite Ltd | 1A Summit Business Park, Langer Road, Felixstowe, Suffolk IP11 2JB | 01394 799 001 | |
| Comms Wholesale | 26 park road, worthing BN11 2AS | 01903231587 | |
| Comms365 Ltd | South House 3, Bond Estate, Bond Avenue, Milton Keynes MK1 1SW | 01234 865880 | https://www.comms365.com/ |
| Commsbill | https://www.triangletelecom.co.uk/ | ||
| Commscare Group Ltd | Cheshire Avenue, Cheshire Business Park, Lostock Gralam, Northwich CW9 7UA | 01606811339 | |
| CommsFM Ltd | 5 Royal Exchange Square, Glasgow G1 3AH | 0800 975 0700 | https://commsfm.com/ |
| CommsNet Solutions Ltd | 60 Carberry Way, Stoke on Trent ST3 5QU | 03300 555855 | |
| Commsplus Ltd | 51 Gazelle Road, Weston-Super-Mare, North Somerset BS24 9ES | 01934 882 200 | https://www.commsplus.co.uk/ |
| CommsResources | Number One, Sherman Roiad, Bromley, Kent BR1 3JH | 0208 313 6680 | |
| Comms-Sense Ltd | 27 Old Gloucester Street, London WC1N 3AX | 0203 002 6076 | |
| Commsworld Ltd | Commsworld House, Peffer Industrial Estate, Peffer Place, Edinburgh EH16 4BB | 0800 073 2233 | https://www.commsworld.com/ |
| Bellview Communications Ltd | 47 Cressex Enterprise Centre Lincoln Road High Wycombe Bucks HP12 3RL | 01494 538858 | |
| Comm-Tech Services (UK) Ltd | 37 Newbold Close, Dukinfield SK16 4SP | 01618500480 | |
| Comm-Tech Telecom Solutions Ltd | Communication Centre, 33 King Street, Norwich NR1 1PD | 01603 218 600 | |
| Comm-Tech Voice & Data Ltd | Communications Centre, 33 King Street, Norwich NR1 1PD | 01603 218 600 | https://www.comm-tech.co.uk/ |
| Communicate & Control Ltd | 3A St Leonards Road West, St Annes, Lancashire FY8 2PF | 0845 055 8230 | |
| Communicate Better | https://www.communicatebetter.co.uk/ | ||
| Communicate Better Business Solutions | 222 Manchester Road, Worsely, Walkden, Manchester M28 3LU | 0845 273 6666 | |
| Communicate Business Solutions Ltd | 6 Hill Road Clevedon, North Somerset, BS21 7NE | 01275 871 122 | https://www.triangletelecom.co.uk/ |
| Communicateuk Ltd | 5 Ashby Place, Hoole, Chester CH2 3AG | 07876860496 | |
| Communication Networks Ltd | 3 Bishops Grove, Sketty, Swansea SA2 8BE | 07766066342 | |
| Nine Telecom Ltd | 1 Rhiw Road Colwyn Bay Conwy North Wales LL29 7TE | 0845 2700 672/3 | |
| Communications Networking Services (UK) | BT Regulatory Affairs, Postpoint 204, 5 Cheapside, London EC2V 6AA | 020 7356 5313 | |
| Nine Telecom Ltd | Unit 4, The Exchange 9 Station Road Stansted Mountfitchet Essex CM24 8BE | 0844 854 6996 | |
| Communications Solution Providers Ltd | 35 Worrin Road, Flitch Green, Dunmow CM6 3FU | 0845 127 9898 | |
| Communications Solutions UK Ltd | 5 Woodside Business Park, Whitley Wood Lane, Reading RG2 8LW | 0118 920 9420 | |
| Communications South Ltd | 284 Hayling Avenue, Portsmouth, Hampshire PO3 6EF | 02392 833 993 | |
| Communications South East Ltd | East Malling Business Centre, East Malling, Maidstone, Kent ME19 6BJ | 01622 320 280 | |
| Communication-Stem | 15-16 Lower Park Row, Bristol BS1 5BN | 0845 2410000 | https://www.c-stem.co.uk/ |
| Communicoms Ltd | Suite 1, Swan Park Business Centre, Kettebrook Road, Tamworth, Staffordshire B77 1AG | 0845 017 8811 | |
| Communitec Ltd | 79a York Street, London W1H 1QQ | 0203 700 8585 | |
| Community Action Suffolk | Brightspace, 160 Hadleigh Road, Ipswich IP2 0HH | 01473345305 | |
| Community Fibre Ltd | 2 Eastbourne Terrace, London W2 6LG | 0800 082 0770 | https://www.communityfibre.co.uk/ |
| CommunityUK.net Ltd | Unit 5 Trafalgar House, 223 Southampton Road, Portchester PO6 4PY | 0845 287 1658 | |
| Company Communication UK Ltd | 58 Buckinham Road, Weston Industrial Estate, West Super Mare, North Somerset BS24 9BG | 0845 4021277 | |
| company system ltd | 345 high road, London E11 4JT | 02034908180 | |
| Comparison Systems Ltd | 5-9 Eden Street, Kingston Upon Thames KT1 1BQ | 01892538290 | |
| Compatel Ltd | 6th Floor, 94 Wigmore Street, London W1U 3RF | 020 7558 8132 | https://www.compatel.com/ |
| Compatibility Ltd | Park road, Crowborough TN6 2QX | 01892665326 | |
| Compcontrol Ltd | Northumberland House, 11 The Pavement, Popes Lane, Ealing W5 5NG | 020 8832 7407 | |
| Compex IT Ltd | 140 Cheston Road, Aston, Birmingham B7 5EH | 0121 296 2500 | |
| Complete Business Solutions (NW) Ltd | 40 Devonshire Road, Bolton BL1 4PQ | 01204-848414 | |
| Complete Computer Solutions (Derby) Ltd | 65a Friar Gate, Derby DE1 1DJ | 08448844945 | |
| Complete IP Solutions Ltd | St Johns Innovation Centre, Cowley Road, Cambridge CB4 0WS | 0845 512 1234 | |
| Complete IT Ltd | 7 The Courtyard, Glory Park, Wooburn Green, Bucks HP10 0DG | 01628 552860 | |
| Complete IT Solutions Ltd | 118 High Street, Swainby, Northallerton DL6 3DG | 020 7856 9000 | |
| Complete IT Systems | Gumption Business Centre, Glydegate, Bradford, West Yorkshire BD5 0BQ | 0845 873 9631 | |
| Complete Network Services Ltd | The Ground Floor, The Portal, Bridgewater Close, Network 65 Business Park, Burnley BB11 5TT | 0844 209 4512 | |
| Complete Networks Ltd | The New Media Center, 36-42 New Tythe Street, Long Eaton, Nottingham NG10 2DB | 0845 070 4440 | |
| Complete Security Services | 72A Townfield Lane, Frodsham, Cheshire WA6 7RL | 01928 732549 | |
| Complete Systems | Manor House Avenue, Millbrook, Southampton SO15 0LF | Unit 9 | |
| Complete Tech Solutions (Nw) Ltd | 181 hartsbourne avenue, Liverpool L25 2RX | 0151 601 8323 | |
| Complete Voice & Data Solutions Ltd | Suite 40 Lymedale Business Centre, Hooters Hall Road, Lymedale, Newcastle-Under-Lyme ST5 9QF | 03337729544 | |
| Complex Online Ltd | 130 Handsworth Road, Sheffield S9 4AE | 0114 256 1010 | |
| Complogic Ltd | Unit 21, John Baker Close, Llantarnam Business Park, Cwmbran,, Torfaen NP44 3AX | 0845 177 0000 | |
| Compower | 101 Mercer street, Newton-le-Willows, Merseyside WA12 9TL | 01925 594 040 | |
| Comprehensive Computer Supplies Ltd | 165, Moorside, The Moor, Coleorton LE67 8GD | 0845058 9803 | |
| Compucare Computer Servicing Ltd | Petitor House, Nicholson Road, Torquay, Devon TQ2 7TD | 01626 324 029 | |
| Compuserve Ltd | European Business Park, Taylors Lane, Oldbury B69 2BN | 03330069203 | |
| Compuserve Services Ltd | Northdown Road, Woldingham, Surrey CR3 7AA | 08707406563 | |
| Computacall Ltd | THB House, 12 Raymonds Close, Welwyn Garden City, Hertfordshire AL7 4TH | 01707 351380 | |
| Computaccount (UK) Ltd | 11 High Street, Harborne, Birmingham B17 9NT | 0121 428 1111 | |
| Computations | 16 Grove Orchard, Highworth SN6 7LB | 01793861927 | |
| Computeam Ltd | Broadstone Mill, Stockport SK5 7DL | 08008620123 | |
| Computec Computers Ltd | 210 Manor Lane, Lee, London SE12 0UA | 02084730678 | |
| Computecuk Ltd | 6 Clarence Street, Cleckheaton BD19 5HJ | 01138980103 | |
| Computer & Network Consultants Ltd | Unit 9 Riverside Business Centre, Brighton Road, Shoreham-By-Sea, West Sussex BN43 6RE | 01273 384 100 | |
| Computer and Communications Co Ltd | Stirling House, Denny End Road, Waterbeach CB259PB | 01223427700 | |
| Computer Cavern | Westhorpe Farm, Westhorpe Farm Lane, Marlow Road, Little Marlow SL73RQ | 01628891101 | |
| Computer Depot Ltd | 16 Robert Templeton Drive, Cambuslang, Glasgow G72 7NE | 0141 439 1613 | |
| Computer Integrated Manufacturing Services Ltd | Park House, Franconia Drive, Nursling, Southampton SO16 0YW | 08448711669 | |
| Computer Marketing Services Software Ltd | 10 Saxon House, Upminster Trading Park, Warley Street, Upminster, Essex RM14 3PJ | 01708 640382 | |
| Computer Network Solutions (Scotland) Ltd | 9-11 Maritime Street, Edinburgh EH6 6SB | 08701186900 | |
| Computer Smart Ltd | Unit 10, Creamery Ind Est, Kenlis Road, Preston PR3 1GD | 0845 508 2210 | |
| Computer Software & Peripherals Ltd | 41 Market Street, Watford WD18 0PN | 01923447711 | |
| Computer Solutions | 136 Cavendish Street, Barrow-in-Furness, Cumbria LA14 1DJ | 0845 6012831 | |
| Computer Solutions Cymru Ltd | 18 Wynnstay Road, Colwyn Bay LL29 8NB | 01492535000 | https://www.compsoluk.com/ |
| Computer Strategies Ltd | 4 Saxton, Parklands, Guildford GU2 9JX | 01483 238260 | |
| Computer Supply Lines Ltd | 104 Lancaster Road, New Barnet EN4 8AL | 02084415577 | |
| Computer Surgeon Ltd | 4 Mere Close, Chichester PO20 8AG | 01243887434 | |
| Computer Systems Integration Ltd | Garden Suites 1-4, Coleshill Manor, South Drive, Coleshill B46 1DL | 08001088301 | |
| Computer Systems Solutions Ltd | Alacrity, Bowl Road, Ashford TN27 0NH | 01622863272 | |
| Computer Systems UK Ltd | 15 Southmill Trading Centre, Southmill Road, Bishops Stortford, Herts CM23 3DY | 0870 3866 222 | |
| Computer2cloud Ltd | Unit 5, Wharf Road, Eastbourne BN21 3AW | 02033888666 | |
| Computercentric Ltd | Anchor House, Anchor Road, Aldridge, Walsall WS9 8PW | 01922 324010 | |
| ComputerDr | 2 Gorefeld, Bishops Stortford CM22 6TL | 01279 871719 | |
| Computerease Ltd | 4 Bramble Street, Derby DE1 1HU | 0870 444 5414 | |
| Computer-eyez (south) Ltd | Enterprise Centre, Denton Island, Newhaven, Easy Sussex BN9 9BA | 01273 806211 | |
| Computerised Business Systems Ltd | 554-556 Barton Road, Stretford, Manchester M32 9TD | 0161 755 9441 | |
| Computerman UK Ltd | T-mex House, Bircholt Road, Maidstone ME15 9XY | 01622677677 | |
| Computers Madeasy Ltd | St.Johns Innovation Centre, Cowley Road, Cambridge CB4 0WS | 01223850800 | |
| Computers365 Ltd | Bundorin Lea, Highbury Road, Weston-super-Mare, North Somerset BS23 2DR | 01934 310 010 | |
| Computersales Direct | https://www.computersales-direct.co.uk/ | ||
| Computersmiths Ltd | 3 Fishweir Fields, Bridport, Dorset DT6 3HE | 020 3327 4049 | |
| Computing Information Systems Ltd | Unit 1 RAC Estate, Park Road, Faringdon SN7 7BP | 01367 700 555 | |
| Computors Ltd | Creative Industries Centre, Wolverhampton Science Park, Glaisher, Wolverhampton WV10 9TG | 01902 203001 | |
| CompuWeb Communications Services Ltd | Bowden Drive, Beeston, Nottingham NG9 2JY | 01157401234 | |
| Comsave Ltd | Network House, 2 Connaught Avenue, London E4 7AA | 0844 8114455 | |
| ComShop Ltd | 68 York Road, Peterlee, County Durham SR8 2DP | 0191 586 3710 | |
| Comspec IT Solutions Ltd | Comspec House, Meadland Grove, Bolton BL1 8TQ | 01204 898 055 | |
| Comstar Services Ltd | 400 Thames Valley Park Dr, Thames Valley Park, Reading, Reading RG6 1PT | 0118 402 5550 | |
| Comtact Ltd | 46-48 East Smithfield, London E1W 1AW | 08452 757575 | https://www.comtact.co.uk/ |
| Comtec Business Equipment Ltd | |||
| Comtec Enterprises Ltd | 46A Albert Road North, Reigate RH2 9EL | 0800 008 7599 | https://www.comtec.com/ |
| Comtec Ict Services Ltd | Fairbairn House, Higher Lane, Plymouth PL1 2AN | 0441752422950 | |
| Comtec Telecom and Data Ltd | |||
| Comtec Telecom Lines Ltd | Comtec House, 1 Church Street, Merthyr Tydfil CF47 0BA | 01685 354550 | |
| Comtech Consultancy Ltd | County House, Beaufort Road, Plasmarl Ind Est, Swansea SA6 8JG | 01792709249 | |
| COM-TEL Telecom Ltd | Portland Place, 16 Portland Street, Lincoln LN5 7JX | 03302201234 | |
| Comtxt Ltd | Cavell House, Stannard Place, St Crispins Road, Norwich NR3 1YE | 01603 821 013 | |
| Comverged Ltd | Barclays House, Gatehouse Way, Aylesbury HP19 8DB | 01296343430 | |
| Comvista Ltd | Suite Six Buko Tower, Dalton Road, Glenrothes, Fife KY6 2SS | 0845 130 2585 | |
| Comvista Networks Ltd | Baird House, 10 Newark Road South, Eastfield Industrial Estate, Glenrothes KY74NS | 01592210210 | |
| ComWales Ltd | 19 Market Street, Pontypridd, South Wales CF37 2ST | 01443 403333 | |
| Comxo TRIDrading Ltd | Pippin Grove, 628 London Road, Colnbrook, Berkshire SL3 8QH | 01753 710 430 | |
| Concept Coders | 105B The Big Peg, 120 Vyse Street, Hockley, Birmingham B18 6NF | 0121 638 0000 | |
| Concept IT Services Ltd | F8-F9 Tanfield Lea Business Centre, Stanley DG9 9DB | 08458382248 | |
| Conceptex Ltd | 51 Waterloo Road, Wolverhampton WV1 4QJ | 01902711777 | |
| Conceptual Management Ltd | 7 Stratford Place, London W1C 1AY | 020 3574 4042 | |
| Conceptunet Ltd | Unit 1 Flockton Park, Holbrook Avenue, Holbrook Industrial Estate, Sheffield S20 3FF | 0114 276 4960 | |
| Concert Audio Communications Ltd | First Floor, Gibralter House, Crown Square, First Avenue, Burton upon Trent DE14 2WE | 07831658120 | |
| Concert Networks Ltd | 3 Tabley Court, Moss Lane, Knutsford, Cheshire WA16 0PL | 01565 781 070 | https://www.concertnetworks.co.uk/ |
| Concise IP Ltd | Newlands,, The Fen,, Fenstanton,, Cambridgeshire PE28 9JT | 0844 848 7447 | |
| Concise Technologies Ltd | No2 Royal Court, Gadbrook Park, Northwich, Cheshire CW9 7UT | ||
| Concise Technologies Ltd | No2 Royal Court, Gadbrook Park, Northwich, Cheshire CW9 7UT | 01606 336200 | |
| Concorde I Ltd | Unit 4 Merlin Business Park, Exeter Airport, Exeter EX5 2UL | 01392 362088 | |
| Concorde Informatics Technology Group Ltd | Concorde House, Wakefield Road, Ossett WF5 9JS | 08432480000 | |
| Condie IT Solutions LTD | 10 Abbey Park Place, Dunfermline KY12 7NR | 0844 247 1144 | |
| Conduit Enterprises Ltd | Sterling House, Malthouse Avenue, Cardiff Gate Business Park, Cardiff CF23 8RA | 029 2054 8000 | https://www.118118money.com/ |
| Conduit Networks Ltd | 4th Floor, 22 Buckingham Gate, London SW1E 6LB | 020 7100 5522 | |
| Conexion Communications Ltd | The Coach House, 1 Manor Courtyard, Aston Sandford, Bucks HP17 8JB | 01844 296 530 | |
| Confabulate | |||
| Config Computer Services Ltd | 1B Fareham Park Road, Fareham, Hampshire PO15 6LA | 01329 310451 | |
| Configures IT Solutions Ltd | 51 Pinfold Street, Birmingham B24AY | 0121 392 2468 | |
| Connal & Co LTD | 1 Mackenzie Place, Falkirk FK1 5UJ | 01324631927 | |
| Connate Ltd | 52 Norman Road, London E11 4PX | 03333352020 | |
| Connaught Communication Systems Ltd | 14 Systems House, Reddicap Trading Estate, Sutton Coldfield, Birmingham B75 7BU | 0121 311 1010 | |
| Connaught Communication Systems Ltd | Systems House, The Courtyard, Reddicap Trading Estate, Sutton Coldfield, Birmingham B75 7BU | 0121 311 1010 | https://www.connaughtltd.co.uk/ |
| Connect 4 Voice And Data Ltd | 308 Melton Road, Leicester LE4 7SL | 0116 308 7780 | |
| Connect B2B | https://www.connectb2b.co.uk/ | ||
| Connect Business Systems Telecommunications Ltd | Connect House, Waterside, Stoke Prior, Bromsgrove B60 4FD | 01527 556363 | |
| Connect Communication Solutions LTD | 355 - 367 Lisburn Road, Belfast BT9 7EP | 080 058 2855 | |
| Connect Communications Group Ltd | Hertford House, 1 Cranwood Street, London EC1V 9QP | 020 7950 3200 | |
| Connect Communications UK Ltd | Stobo House, Midlothian Innovation Centre, Roslin EH25 9RE | 01314407777 | |
| Connect Digital Security Ltd | Clockbarn, Tannery Ln, Woking GU237EF | 01483802988 | |
| Connect It Communications Ltd | Innovation Centre, Medway, Maidstone Road, Chatham, Kent ME5 9FD | 0845 688 5122 | |
| Connect Managed Services (UK) Ltd | 5 Thomas More Square, London E1W 1YW | 02079503200 | |
| Connect Systems LLP | The Island, Moor Road, Chesham HP5 1NZ | 01494 810 900 | |
| Connect Telecom UK Ltd | 1 The Green, Richmond, Middx TW9 1PL | 020 8228 1832 | https://www.call18866.co.uk/ |
| Connect The World Ltd | Suite 12 Towerside, 148 Wapping High Street, Wapping, London E1W 3PF | 0870 174 8575 | |
| Connect U Ltd | 137 Snargate Street, Dover CT17 9DA | 01304 389888 | |
| Connectalk Ltd | The Old Rectory, Main Road, Ombersley, Droitwich WR9 0EW | 01905 677999 | |
| Connected Systems Solutions Ltd | Kevin Harvey, Antenna, Beck Street, Nottingham NG1 1EQ | 0115 8813456 | |
| Connected World | https://www.connectedworld.co.uk/ | ||
| Connected World Communications Ltd | 6 Webster Court, Warrington WA5 8WD | 01925 467 500 | |
| Connectincloud Ltd | 43-A, Mansfield Road, Ilford IG1 3BB | 07500500354 | |
| Connecting London Ltd | 16 Anning Street, London EC2A 3HB | 0800 2800 365 | |
| Connective Technologies | 12 Marlborough Road, Sutton SM1 2PF | 020 3468 7883 | |
| Connectngo Ltd | Kemp House, 160, City Road, London EC1V 2NX | 02045064474 | |
| Connects2 | https://www.connects2.com/ | ||
| Connectus Business Solutions Ltd | 53 Ullswater Crescent, Coulsdon, Surrey CR5 2HR | 0844 887 1100 | |
| Connectus Group | https://connectus.org.uk/ | ||
| Connetu Ltd | 3rd Floor, 207 Regent Street, London W1B 3HH | 02033686848 | |
| Connex Group | Unit 14771, PO Box 6945, London W1A 6US | 01603908122 | |
| Connexin Ltd | 15 The Elms, Thicket Road, Houghton, Huntingdon, Cambridgeshire PE28 2FQ | 020 7148 8777 | https://www.connexin.co.uk/ |
| Connexinet LTD | 5 & 7 Station Hill, Oakengates, Telford TF2 9AA | 01952 617535 | |
| Connexion Ltd | 2 Cutbush Court, Danehill, Lower Earley, Reading RG6 4UW | 01189209600 | |
| Connexions (Group) Ltd | Marconi Road, Burgh Road Ind Est, Carlisle, Cumbria CA2 7NA | 01228 514 369 | https://www.connexionsgroup.co.uk/ |
| Connexions 4 London | 22 St Peters Road, Bournemouth, Dorset BH1 2LE | 01202 299799 | |
| Connexis Ltd | 5 Pearson Road, Anchorage Aveneue, Shrewsbury Business Park, Telford TF2 9TX | 01952528000 | https://www.connexis.co.uk/ |
| Connexus Networks Ltd | Suite 2 Sperry House, Bonds Mill, Stonehouse, Gloucestershire GL10 3RF | 0870 607 2121 | https://www.connexusnetworks.co.uk/ |
| Connx Ltd | 42 Lytton Road, New Barnet EN5 5BY | 07956654220 | |
| Conosco Ltd | The Plaza, 535 Kings Road, London SW10 0SZ | 08702202301 | |
| Consega Ltd | 7 Beechwood Road, West Moors, Dorset BH22 0BN | 01202 873783 | https://www.consega.com/ |
| Consider I.T. Solutions Ltd | 4 Jones Street, Mountain Ash CF45 3UL | 01443472684 | |
| Consider IT Ltd | 27 Queen Charlotte Street, Edinburgh EH6 6AX | 0131 510 0110 | |
| Consilium U.K. Ltd | Consilium UK, 4020 Mile End Abbey Mill, 12 Seedhill Road, Paisley PA1 1JS | 01418471545 | |
| Consolidated Telecommunications Ltd | The Octagon, Middleborough, Colchester CO1 1TG | 0844 892 1498 | |
| Consorte UK Ltd | Pallinghurst, Guildford Road, Rudgwick, West Sussex RH12 3BQ | 01403 824018 | |
| Consortia Communications Ltd | 3, College Place, Southampton SO15 2FB | 03300885044 | |
| Constant Technology | Unit 18, Building G1, Dace Rd, London E3 2NG | 020 7193 0408 | |
| Consulting Networks Ltd | Customer Services Team, 40 March Road, Wimblington, Cambridgeshire PE15 0RN | 0870 036 1234 | |
| Contact Centre Communications Ltd | Bolney Place, Cowfold Road, Bolney, West Sussex RH17 5QT | 01444 880 301 | |
| Contact Scotland Ltd | |||
| Contact Systems Ltd | Atlantic Business Centre,, Atlantic Street, Altrincham, Manchester WA14 5NQ | 01618041500 | |
| Contedia Ltd | 35 Southgate, Pontefract WF8 1LN | 0845 388 0845 | |
| Content Guru Ltd | Eastern Road, Bracknell RG12 2UP | 01344 852350 | https://www.contentguru.com/ |
| Continental Ltd | Unit C2, Staverton Technology Park, Cheltenham GL51 6TQ | 01452 855222 | |
| Contingent Works Services Ltd | Elmfield Rd, Bromley BR1 1LW | 02037375864 | |
| Continuity Assured Ltd | The Springboard Centre, Mantle Lane, Coalville, Leicestershire, LE67 3DW | 0800 8404142 | https://www.continuityassured.co.uk/ |
| Continuitycloud Ltd | Unit 8 The Springboard centre, Mantle Lane, Coalville LE67 3DW | 08000210502 | |
| Continum Ltd | Mossfield House, Chesham Fold Road, Bury BL9 6JZ | 0161 885 2000 | |
| Control CCTV Ltd | Unit CG1A, Clarence Mill, Bollington, Macclesfield SK10 5JZ | 0333 101 4410 | |
| Converga Ltd | Spring Vale Works, Elland Road, Brookfoot, Brighouse, West Yorkshire HD6 2RN | 01484 818 354 | |
| Converge Technology Ltd | Herrick Close, Staverton Technology Park, Cheltenham GL51 6TQ | 01452 858030 | |
| Converged Business Solutions Ltd | Oakwood House, Taylor Business Park, Warrington WA3 6BH | 01625 800170 | |
| Converged Comms | 2 Kindale Road, Prenton, Wirral CH43 3AT | 0151 601 5377 | |
| Converged Communication Solutions Ltd | Converged House, Spires Business Park, Mugiemoss Road, Aberdeen AB21 9BG | 01224 656380 | https://www.converged.co.uk/ |
| Converged IT Ltd | International House, 24 Holborn Viaduct, London EC1A 2BN | 07827943085 | |
| Converged Tek Ltd | Carlton House, 19 West Street, London KT187RL | 03330063322 | |
| Converged Voice Solutions | 20 Eden Way, Winnersh, Wokingham, Berkshire RG41 5PQ | 0870 4050115 | |
| Converge-IT.net Ltd | Barnett House, 53 Fountain Street, Manchester M2 2AN | 0870 770 0790 | |
| Convergence Ltd | Aldershot Enterprise Centre, Mandora House, Gallwey Road, Aldershot GU11 2PW | 03333110100 | |
| Convergence (Group Solutions) Ltd | 2 Lammas Centre, Budbrooke Road, Budbrooke Industrial Estate, Warwick CV34 5WQ | 0845 270 2709 | |
| Convergence Communications Ltd | 21 & 22 Hall Barn Road, Isleham, Cambridgeshire CB7 5RD | 08700 332400 | |
| Convergence Group Networks Ltd | One Cranmore, Cranmore Drive, Shirley, Solihull B90 4RZ | 0845 270 2709 | |
| Convergent Networks Ltd | |||
| Converse Business Solutions Ltd | Navson House, Crabtree Office Village, Eversley Way, Egham TW20 8RY | 08458739900 | |
| Converse Telecom Ltd | Old Bank House, 57 Church Street, Staines, Middx TW18 4XS | 0845 8739900 | |
| Converse4u Ltd | 25 John Shelton Drive, Coventry CV6 4PE | 07980076224 | |
| Conxdigital Ltd | 3rd Floor, 207 Regent Street, London W1B 3HH | 03333445911 | |
| Conxserv Ltd | 9B Arun Business Park, Bognor Regis PO22 9SX | 03333441520 | |
| Cool Fish Communication Ltd | 8 Avenue Road, Stratford upon Avon CV37 6UW | 07899921327 | |
| Cooper Covell Communications Ltd | Unit 3a Westpoint, 39 - 40 Warple Way, London W3 0RG | 020 7501 6580 | |
| Copiertec Ltd | 3 browells lane, Feltham TW13 7EQ | 08447362401 | |
| Copytel Ltd | 5 Pasture Drive, Whitwood, Castleford, West Yorkshire WF10 5TL | 01977 512 330 | |
| Cor Solutions Ltd | 68a Hermitage Road, Hitchin SG5 1DB | 01462 434082 | |
| Coralbridge Ltd | 13-15 Hunslet Road, Leeds LS10 1JQ | 0113 320 3040 | https://aql.com/ |
| Corbel Solutions Ltd | 53-57 Knightsdale Road, Ipswich IP1 4JQ | 01473 241515 | |
| Corbridge Computing Ltd | 1 Hill Street, Corbridge NE45 5AA | 01434633200 | |
| Core Communication Services Ltd | 6–7 Ludgate Square, London EC4M 7AS | 0808 130 0808 | http://www.coretel.co.uk/ |
| Core Digital | 22 Mill Road Avenue, Littlehampton BN16 4HS | 01903 786 117 | |
| Core Educational Ltd | The Centre of Reburbishment Excellence, Normacot Road, Longton, Stoke-on-Trent ST3 1PR | 0330 22 35 229 | |
| Core Team One Ltd | 3 Lister Street, Brighouse HD6 2AH | 01484612756 | |
| Core Telecom Ltd | Mazhar House, 48 Bradford Road, Stanningley, Leeds LS28 6DD | 0844 504 0000 | https://www.coretelecom.co.uk/ |
| Core Telecommunications International Ltd | 18 Edward Square, Bloomfield Avenue, Dublin 4. Ireland | 020 3171 1777 | http://www.coretelinternational.com/ |
| Coretek Ltd | 7 Gardeners Business Park, Sherfield English Road, Plaitford, Hampshire SO51 6EJ | 01794 325 920 | |
| Coretx Protect Ltd | Kings Reach, 38-50 Kings Road, Reading RG1 3AA | 0118 338 3000 | http://www.coretx.com/ |
| Corgi Telecoms Ltd | Tannery Court, Tanners Lane, Warrington, Cheshire WA2 7NR | 01925 401 702 | |
| Corinthian Technical Solutions Co Ltd | Southern Counties House, 27-43 Ifield Road, Crawley, West Sussex RH11 7AT | 01293 434224 | |
| Cornerstone Business Solutions Ltd | MAP House, 3 George Stephenson Court, Off Westland Way, Preston Farm Ind Estate, Stockton on Tees, Middlesbrough TS18 3TG | 0845 223 2400 | |
| Cornerstone Business Solutions And Services Ltd | 22 Fernhurst Drive, Brierley Hill DY5 4PU | 03333002522 | |
| Cornwall Broadband Ltd | 20A Belle Vue, Bude, Cornwall EX23 8JL | 01288255301 | |
| Corporate Communications Europe Ltd | 42 Old Broad St, London EC2N 1HQ | 020 7920 2000 | |
| Corporate Finance Associates Ltd | 10 New Road, Raye, Braintree CM77 6TG | 01376333823 | |
| Corporate Information & Communication Technology Ltd | 31 Tileyard Studios, Tileyard Road, London N7 9AH | 020 7503 3000 | |
| Corporate Management Telecom Ltd | 4 Oak Park, Hunsdon, Nr Ware, Herts SG12 8QA | 08707 526 050 | |
| Corporate Mobile Communications Ltd | 11 - 13 Wharfside, Fenny Stratford, Milton Keynes MK2 2AZ | 01908 369 010 | |
| Corporate Mobile Connections Ltd | Moorate Point, Moorgate Road, Liverpool L33 7XW | 015154508058 | |
| Correct Group Ltd | 10-14 Interlink House, 73A Maygrove Road, West Hampstead, London NW6 2EG | 020 7372 4106 | |
| Cortex Communications | Whitehall Emine Way, Arrington, Cambridgeshire SG8 0AG | 0844 858 9223 | |
| Cotswold Community Networks Ltd | Unit G Donkeywell Farm, Cirencester GL7 5DH | 08448040484 | |
| Cotswold Connect Ltd | 1 St Aidans Close, Cheltenham GL51 0HL | 08002702007 | |
| Cotswold PC | 14 Oddfellows Terrace, Moreton In Marsh, Gloucestershire GL56 0HA | 01608 812 386 | |
| Couno Ltd | 19 Station Road, Southend-on-Sea SS1 3JY | 02035534696 | |
| Count7 Ltd | Flat 56, Offenbach House, Mace Street, London E2 0RB | 02035000590 | |
| Country Connect Ltd | 52a Westgate, Nottinghamshire NG25 0JX | 01633 530519 | |
| Country Kit Ltd | Audley House, New Road, Moreton, Congleton CW12 4RX | 01260 299451 | |
| Countrywide Farmers Energy | Utilities Dept, Defford, Earls Croome, Worcs WR8 9DF | 01386 757 333 | |
| County Broadband Ltd | Old Bourchiers Hall, New Road, Aldham, Colchester CO6 3QU | 01376562002 | https://www.countybroadband.co.uk/ |
| County Consultancy Services Ltd | Innovation Centre, University Way, Cranfield MK43 0BT | 01908 410041 | |
| Covlink (Uk) Ltd | 1 Goldsmith Ave, Warwick CV346JA | 01926495416 | |
| Covue IT Ltd | Unit 6, Bybow Farm, Dartford DA2 7ER | 02071002244 | |
| Cowley Computer Solutions | Keepers House, Kingscroft Lane, Havant, Hampshire PO9 3JE | 0239 248 6956 | |
| CP Media Solutions | 26 Charles road, clitheroe BB71FR | 08448842981 | |
| CPW IT | Holy Trinity Rectory, Seafield Avenue, Keith AB55 5BS | 01463896304 | |
| CR Network Solutions | 3 Reymerstone Road, Garvestone, East Dereham, Norwich NR9 4QX | 01603672626 | |
| Craig Wright | 3 station terrace, Mountain ash CF453SS | 07534812657 | |
| Cranberry Communications Ltd | 78 Chapel Street, Kings Lynn, Norfolk PE30 1EF | 01553 666 111 | |
| Crazy Pages | 125 Holymoor road, Holymoorside, Chesterfield S42 7DR | 01246384063 | |
| Crazy Web Service Ltd | 15 Lakewood Drive, Barlaston, Stoke on Trent ST12 9BH | 01782499293 | |
| Crea8ive Network Solutions Ltd | Unit 1b Roundhouse Court, Southrings Business Park, Bamber Bridge, Preston, Lancashire PR5 6DA | 01772 558868 | |
| Create IT Ltd | Unit 5, Thatcham Business Village, Colthrop Way, Thatcham RG19 4LW | 01635277500 | |
| Creative Network Consulting Ltd | 320 City Road, London EC1V 2NZ | 02076822820 | |
| Creative Networks Ltd | Regal House, Miall Street, Rochdale OL11 1HY | 01706 396496 | |
| Creative Telecoms Ltd | Studio 229, Great Gulidford Business Square, 30 Great Guildford Street, London SE1 0HS | 0871 222 7150 | |
| Creativezones Solutions Ltd | Victoria Embankment, London EC4Y 0HJ | 02073776509 | |
| Creed Management Ltd | 43 Vicarage Lane, London E15 4HG | 02081230862 | |
| Creed Travel Ltd | 466 Cranbrook Road, Essex IG2 6LE | 02030869730 | |
| Crimzon Communications Ltd | The Railway Offices, 36 King Street, Sileby, Loughborough LE12 7NA | 01509 815 398 | |
| CritchCorp Computers Ltd | 11 Murray Street, Camden, London NW1 9RE | 0800 612 1029 | |
| Criterion Systems Ltd | 116 Wellington Street, Stockport, Cheshire SK1 1YH | 0161 429 4910 | |
| Crius Technologies Ltd | The Turbine, Coach Close, Worksop S81 8AP | 01909 776655 | |
| Cromarty Firth Wireless Networks | http://www.cfwn.co.uk/ | ||
| Crosby Fax | https://www.crosbyfax.com/ | ||
| Crossbill Telecoms Ltd | Cash's Business Centre, 228 Widdrington Road, Coventry CV1 4PB | 03442596020 | |
| Crosscom Ltd | 3 Brook House, Old Wool Lane, Cheadle SK8 2PE | 0161 491 5571 | |
| Crown Telecom Solutions Ltd | The Oil Centre, Heap Bridge, Bury BL9 7HY | 08444 150 140 | |
| Crowthorne Associates Ltd | Wigglesworth House, 69 Southwark Bridge Road, London SE1 9HH | 0845 634 7000 | |
| CRU Technologies Ltd | 1 Station Hill, Oakengates, Telford TF2 9AA | 03331 017 100 | |
| Crwstech | Crwstech, Ty Gwyn, Station Road, Llanrwst LL26 0EH | 01492437001 | |
| Cryle Trading Ltd | 2 Stanley Cottages, London Road, Hartley Wintney, Hants RG27 8RT | 01252 843 228 | |
| Crystal Clear Telecom Ltd | Unit 5, 6 North Road, Poole BH14 0LY | 01202941040 | https://www.crystalcleartelecom.co.uk/ |
| Crystaline Communications Ltd | Boston House Business Centre, 69-75 Boston Manor Road, Brentford, Middlesex TW8 9JJ | 0844 846 4222 | |
| Crystaline Solutions Ltd | 69-75 Boston Manor House, Brentford, Middlessex TW8 9JJ | 0844 8464 222 | |
| CS Malbrook | Unit 7, Ancells Court, Rye Close, Fleet GU51 2UY | 020 3478 3141 | |
| CS Technical Support Ltd | 21 Novus, Spectrum 7, Spectrum Business Park, Seaham SR7 7TT | 08005677529 | |
| CSC IT Ltd | 19 Meridian Way, Norwich, Norfolk NR7 0TA | 01603 431 200 | |
| CSCM Ltd | 1B Swallowfield Courtyard, Wolverhampton Road, Oldbury B69 2JG | 08431 668866 | |
| CSD Ltd | 10 New Road, Rayne, Braintree, Essex CM77 6TG | 01376 333820 | http://www.csd.co/ |
| CSD Computer Solutions Ltd | 22 Cambridge Street, Wolverton, Milton Keynes MK12 5AJ | 01908 311336 | |
| CSE Vitman Ltd | 57 Atlantic Business Centre, Atlantic Street, Altrincham, Cheshire WA14 5NQ | 0844 800 1286 | |
| CSG Computer Services Ltd | CSG House, Bridgend CF32 9SQ | 01656725505 | |
| CSL Dualcom Ltd | Salamander Quay West, Park Lane, Harefield, Middlesex UB9 6NZ | 01895 474474 | |
| CSL Group Services Ltd | 17b, Retford DN227PX | 01777507578 | |
| CSN Solutions Ltd | P13A Photographic Block, Cheltenham GL516PN | 01242571775 | |
| CSQUARED Systems Ltd | The Walled Garden Office, Eleveden Estate, Eleveden, Norfolk IP24 3TJ | 01842 890001 | |
| CSS Computers Ltd | 43 North Quay, Great Yarmouth, Norfolk NR30 1JE | 01493 334 800 | |
| CSS Telecoms | 72a Townfield Lane, Frodsham WA6 7RL | 01928 444100 | https://csstelecoms.co.uk/ |
| Cst Int Ltd | 1 St Marys Place, Bury BL9 0DZ | ||
| CT Networks Ltd | 3 The Maltings, Wetmore Road, Burton-on-Trent, Staffordshire DE14 1SF | 01283 560 500 | |
| CT Wholesale | http://www.ctwholesale.net/ | ||
| Ctalk Ltd | Darwin House, Lakhpur Court, Staffordshire Technology Park, Stafford ST18 0FX | 01785 336 666 | |
| CTC Professional Systems | 5 The Woodlands, Esher KT10 8DD | 02076177502 | |
| CTel Ltd | County House, Beaufort Road, Plasmarl Ind Est, Swansea SA6 8JG | 01792709249 | |
| CTExcelbiz | https://www.ctexcel.com/ | ||
| CTMG Ltd | 68 Brackendale, Potters Bar EN6 2LX | 01707665511 | |
| CTR Communications Ltd | 10 Westprink Crescent, Stoke on Trent ST3 5JB | 0333 456 0314 | |
| Ctrl Telecom Ltd | Elizebeth House, 30-32 Boulevard, Weston-Super-Mare BS23 1NF | 01934217021 | |
| Cube 6 IT Ltd | The Old School House, Colchester Road, Wakes Colne, Colchester CO6 2BY | 01206 804734 | |
| Cube Technology IT Services Ltd | Neptune House, Unit B1a, Neptune Road, Harrow HA1 4HX | 02073430000 | |
| Cubit Technology Ltd | 115 High Holborn, London WC1V 6JJ | 02035350680 | |
| Cuckoo Internet Ltd | 68 Hanbury Street, Spitalfields, London E1 5JL | 07919862574 | |
| Culminet | 30 Ennerdale, Washington, Sunderland NE37 1BW | 07983748473 | |
| Cumulus Business Solutions Ltd | 127 Gorefield Road, Wisbech PE13 5BB | 01223455655 | |
| Curatrix Managed Security Ltd | B6000, Langstone Technology Park, LANGSTONE ROAD, PORTSMOUTH PO9 1SA | 03332412226 | |
| Curveball Solutions Uk Ltd | Suite 5, Enterprise House, Moorgate Point, Moorgate Road, Liverpool L33 7XW | 0151 547 4321 | |
| Cu-St Ltd | 27 Old Gloucester Street, London WC1N 3AX | 01915514848 | |
| Custard Technical Services Ltd | Goldcrest Lodge, Hexgreave Hall, Farnsfield, Nottingham NG228LS | 01623687650 | |
| Custodiandc Ltd | Vinters Business Park, New Cut Road, Maidstone, Kent ME14 5NZ | 01622 230382 | |
| Custom Computer Services (Wales) Ltd | Priory House, Beignon Close, Cardiff CF24 5PB | 03330144544 | |
| Custom Networks Ltd | Greencroft, Three Pears Road, Merrow, Guildford GU1 2XU | 01306 734 120 | |
| Customer Calls Ltd | 71-75 Shelton Street, Covent Garden, London, London WC2H 9JQ | 07568068659 | |
| Customer Care Company Ltd | 40 Kay Brow, Ramsbottom, Lancashire BL0 9AY | 0844 811 8900 | |
| Customer Connection Service Ltd | 1st Floor, 2 Woodbury Grove, Finchley, London N12 0DR | 08000499981 | |
| Customer Services Uk Numbers Ltd | The Junction, Charles St, Horbury, Wakefield WF4 5FH | 08001448844 | |
| Cut Cost Telecoms Ltd | 2 thornton drive, Narborough, Leicester LE19 2GX | 07493547166 | |
| Cutec Ltd | 20 Branson Court, Plymouth PL7 2WU | 01752 231760 | |
| Cutpay Merchant Services Ltd | Suite2, Buddle House, Buddle Road, Newcastle upon Tyne NE4 8AW | 0191 5006575 | |
| Cuttelecoms Ltd | Buddle House, Buddle Road, Newcastle upon Tyne NE4 8AW | 07986283392 | |
| cwc tele.com Ltd | Turnpike House, 1208/1210, London Road, Leigh-on-Sea SS9 2UA | 01702 460200 | |
| cwl systems Ltd | Progress house, Alington Road, St Neots PE19 6WL | 01480 217777 | |
| CWNETWORKS Ltd | |||
| Cyan Solutions Ltd | Unit 14b The Briars, Waterberry Drive, Waterlooville, Hampshire PO7 7YH | 0845 894 9685 | |
| Cyara Solutions | 5 Merchant Square, Paddington, London W2 1AY | ||
| Cyber Threat Security Ltd | 76-80 Old Road, Churwell, Morley, Leeds LS27 7TH | 03339874549 | |
| Cyber Ware Ltd | Litton House, Saville Road, Peterborough PE3 7PR | 01733 646079 | |
| Cybergroup London Ltd | cybergroup london ltd, 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 07940525961 | |
| Cybermo LLP | Charwell House, Wilsom Road, Alton GU34 2PP | 01962 676 450 | |
| Cyberscream Ltd | 3 Pallas Road, Hemel Hempstead HP2 5NR | 01442 256722 | |
| Cybertill Ltd | Clock Tower Court, Knowsley Park, Knowsley L34 4AQ | 08448551600 | |
| Cygnet Telecom Ltd | Warwick House, 41 Spring Road, Hall Green, Birmingham B11 3EA | 0870 787 4710 | |
| Cygnet Total Communications Ltd | 10 Bailey Court, Colburn Business Park, Catterick Garrison, North Yorkshire DL9 4QL | 01748 835 599 | |
| Cymru 1 Ltd | Cymru 1 Limited, P.O.Box 30, Porthmadog, Gwynedd LL49 9ZR | 08000 112244 | |
| Cyta (UK) Ltd | 56A Haverstock Hill, London NW3 2BH | 020 7428 1000 | https://www.cytauk.com/ |
| Cyteluk Telecom Ltd | 8, Ashfield Parade, Southgate, London N14 5AB | 0800 036 0078 | |
| Cytringan Ltd | Unit 11, Enterprise Road, Raunds, Northamptonshire NN9 6JE | 0333 101700 | |
| CzWorks Ltd | 19 Belper Street, Blackburn BB1 5HA | 01254 694 400 | |
| D & G Consultancy Services Ltd | 18-19 Griffin House, Birmingham B3 1DW | 0800 088 4330 | |
| D G Tel Communications Ltd | 23 Great Lime Kilns, Southwater, Horsham RH13 9JL | 01403 803003 | |
| D K Networks | 23 Woodman Avenue, Whitstable, Kent CT5 2RB | 01227 200 020 | |
| D R Communications Ltd | 10 Kingsclere Business Park, Kingsclere, Newbury, Berkshire RG20 4SW | 01256 895895 | |
| D&D Network Services Ltd | County House, St Marys Street, Worcester WR1 1HB | 0845 299 7828 | |
| D. H Technical Services Ltd | The Old Bakery, Garfield Place, Faversham, Kent ME13 8AB | 01795342700 | |
| D2 Network Associates Ltd | Lymedale Business Center, Hooters Hall Road, Newcastle Under Lyme ST5 9QF | 03301595969 | |
| D2See | |||
| dabs.com plc | |||
| Daffodil IT Ltd | 2 Queens Road, WFI House, Sheffield S2 4DG | 0845 200 185 | |
| DAINA Systems Ltd | 5 Cornfield Terrace, Eastbourne BN21 4NN | 0333 344 0507 | |
| Daisy Group PLC | Daisy House, Suite 1, Linred Road Business Park, Nelson, Lancs BB9 5SR | 0845 450 4520 | https://daisygroup.com/ |
| Daisy Group Holdings Ltd | Natwest House , Hampshire House, Templars Way, Chandler's Ford, Eastleigh SO53 3RY | 0330 100 1233 | |
| Daisy Networks Ltd | 3A Alexander House, Castlereagh Business Park, 478 Castlereagh Road, Berlfast BT5 6BQ | 0845 450 4520 | https://daisygroup.com/ |
| Daisy Group Holdings Ltd | Natwest House , Hampshire House Templars Way Chandler's Ford Eastleigh, SO53 3RY | 0330 100 1233 | |
| Digital Wholesale Solutions Worldwide Ltd | 31 Commerce Road, Lynch Wood, Peterborough PE2 6LR | 0333 006 6332 | |
| Dalecom | Unit 1C, Toll Bar Workshops, Station Road, Sedbergh, Cumbria LA10 5HA | 01539 622 300 | |
| Dalton Net Service Ltd | 417a Birmingham Road, Sutton Coldfield, Birmingham B72 1AU | 01212683320 | |
| Daly Telecom Ltd | The Point, Granite Way, Mountsorrel, Leicester LE12 7TZ | 01509 410 410 | |
| Dalycom | The Point, Granite Way, Mountsorrel, Leicestershire LE12 7TZ | 01509 410410 | https://www.dalycom.uk.com/ |
| DAM Telecommunications Ltd | DAMtel Telecommunications Ltd, DAMtel House, 18 Soho Square, London W1D 3QL | 0871 995 5222 | |
| Damovo UK Ltd | Broadlands Business Park, Langhurstwood Road, Horsham, West Sussex RH12 4QP | 01403 244000 | |
| Damson (UK) Ltd | Unit 11, Willow Mill, Fell View, Lancaster LA2 9RA | 01524238622 | |
| Nine Telecom Ltd | 18 Soho Square, London, W1D 3QL | 0844 505 1700 | |
| Danish Telecom Ltd | 123, Ashburnham Road, Luton LU1 1JW | 01582213157 | |
| Danixa Ltd | 7 Joydens Wood Road, Bexley, Kent DA5 2HS | 020 7871 2620 | |
| Danoli Solutions Ltd | 56 New Court Way, Ormskirk L39 2YT | 01695 576387 | |
| Dantec Enterprises | |||
| Dantech IT Solutions Ltd | 32 Robinia Road, Broxbourne EN10 6GE | 07866 591234 | |
| Daotec Ltd | 145-157 St John Street, London EC1V 4PY | 020 7037 7777 | https://www.daotec.com/ |
| Dark Group Ltd | St Lawrence, 98 Southleigh Road, Havant, PO9 2PR | 01428 404040 | https://www.dg.uk/ |
| Darkwater Solutions Ltd | Grendon House Farm, Warton Lane, Grendon, Atherstone CV9 3DT | 01827215705 | |
| Darnell Communications Ltd | 30 Green Drive, Clitheroe BB7 2BB | 01200405013 | |
| Darwin Itc Ltd | Unit 6, Yeomanry Road, Battlefield Enterprise Park, Shrewsbury SY1 3EH | 01743303290 | |
| Dash Telecom Ltd | 95 Wilton Road, Suite 3, London SW1V 1BZ | 020 3318 4204 | |
| Dasuni Ltd | Boundry House, Boston Road, London W7 2QE | 020 3393 6186 | |
| Data Backup Solutions Ltd | 7 Maxwell Court, Grimsby DN34 5TX | 0800 840 6559 | |
| Data Computer Services | 27 Portobello High Street, Edinburgh EH151DE | 01316571666 | |
| Data Consulting Services Ltd | Morgans Orchard, Whitecroft Lane, Byfield NN11 6UW | 01905 388 831 | |
| Data Management Associates Ltd | Systems House, Unit 13, Lower Trostre, Llanelli Carms SA15 2EA | 01554 741 144 | |
| Data medik Systems Ltd | 43 Ingham Road, Bawtry, Doncaster DN10 6NN | 07931182091 | |
| Data One Ltd | Unit 12, Technology Centre, Epinal Way, Loughborough LE113GE | 01509215662 | |
| Data Pacific Ltd | 10 Wilkinson Court, Wilkinson Business Park, Wrexham LL13 9AE | 01987 666900 | |
| Data Systems (Computers) Ltd | 21 Wellington Business Park, Dukes Ride, Crowthorne RG45 6LS | 01344755000 | |
| Data Technical (Glasgow) ltd | 2371 Paisley Road West, Glasgow G52 3QB | 0141 530 7664 / 08456 341 437 | |
| Data_Net Services | 57A Noakes Avenue, Great Baddow, Chelmsford CM2 8EW | 01245 478578 | |
| Database for Business Ltd | Talavera Court, Darnell Way, Moulton Park, Northampton NN3 6RW | 0870 442 4924 | |
| Databax Ltd | Delta House, Wavell Road, Manchester M22 5QZ | ||
| Datablox Internet Ltd | Crown Buildings, Halifax Road, Ripponden HX6 4DA | 01422 825 050 | |
| DataBroadband UK | 1 Marr Close, Minster on Sea, SHEERNESS ME122RQ | 01795859298 | |
| Datacentres Ltd | Quay House, Admirals Way, Docklands E14 9XG | 0845 862 0919 | |
| DataConnectivity Ltd | Cowley Road, Cambridge CB4 0PP | 01223750000 | |
| Datadam Ltd | 1 Abbey Street, Eynsham OX29 4TB | 01865 920 103 | |
| Datafish UK Ltd | 68 Queen Street, Sheffield S1 1WR | 01142391849 | |
| Dataflex Design Communications | |||
| dataIP Ltd | Austin House, 151 Eccleshall Road, Stafford, Staffordshire ST16 1PD | 01785 609 520 | |
| Datakom Ltd | 4 Old Field Road, Bocam Park, Pencoed, Bridgend CF35 5LJ | 01656 33 44 55 | https://www.datakom.co.uk/ |
| DataMaster Ltd | Unit 1 New Cut Lane, Warrington WA1 4AG | 01925850717 | |
| Datanet Installation Services UK Ltd | Unit 6 Milbanke Way, Bracknell, Berks RG12 1RP | 01344 354 949 | |
| Datanet.Co.Uk Ltd | Aspen House, Barley Way, Ancells Business Park, Fleet, Hampshire GU51 2UT | 0845 130 6010 | |
| Datanetex Ltd | Unit 32, The Wincombe Centre, Windcombe Business Park, Shaftesbury, Dorset SP7 9QJ | 01722 440660 | |
| Dataphone Services Ltd | Riverside House, Southend Road, Woodford Green IG8 8HQ | 020 8550 8844 | https://www.dataphone.co.uk/ |
| Datapro Services Ltd | The Old Courthouse, Orsett Road, Grays RM17 5DD | 01375756500 | |
| Dataquest UK Ltd | 87A Worship Street, London EC2A 2BE | 020 7392 8886 | |
| DataSafe Services Ltd | United House, North Road, London N7 9DP | 02076072262 | |
| Datasharp East Anglia Ltd | 443 Earlham Rd, NORWICH NR4 7HL | 01603452999 | |
| Datasharp Independent Solutions Ltd | Primary House, Pepperbox Works, Alton Road, Herriard, Basingstoke RG252PQ | 01256811519 | |
| Datasharp UK Ltd | Woodland Court, Truro Business Park, Truro, Cornwall TR4 9NH | 01872 266 666 | https://www.datasharp.co.uk/ |
| Datatech UK LTD | Prospect House, Fishing Line Road, Redditch, Worcestershire B97 6EW | 01200 400 600 | https://www.datatechuk.com/ |
| Datatel Networks Ltd | 19 Peel Road, Douglas, Isle of Man IM1 4LS | 0870 333 4947 | https://www.datatel-networks.com/ |
| datatel solutions ltd | 10 lockside office park, preston PR22YS | 01772910400 | |
| Datavoice Ltd | Bynea House, Bynea Business Park, Llanelli SA14 9SU | 0870 870 5097 | |
| DataVox Solutions Ltd | Saddleworth Business Centre, Delph, Oldham OL3 5DF | 01457 820055 | |
| Datcom LLP | Lynx House, Elmer St South, Grantham, Lincs NG31 6QY | 0845 521 2405 | |
| Datec Business Systems Ltd | Martyn House, Shenstone Drive, Aldridge, Walsall WS9 8PT | 01922 455 692 | |
| Datel Business Systems Ltd | Penmaen House, London Road, Ashington, West Sussex RH20 3JR | 01903 705 900 | |
| Datrix Ltd | 29 Boundary Street, London E2 7JQ | 020 7490800 | |
| Datum Technology Ltd | Suite 2, Focal House,, Ensor Way, New Mills SK22 4NQ | 01663898091 | |
| David Allen IT Ltd | Dalmar House, Barras Lane Estate, Dalston, Carlisle, Cumbria CA5 7NY | 01228 711 888 | |
| David Brown Consulting Ltd | Pinnacle House, Suite 17, Mill Road Enterprise Park, Linlithgow EH49 7SF | 01506 848848 | |
| David Buckingham | PO Box 1185, Spalding PE11 2SN | 07904 129533 | |
| David Morris | Higher Coombe Farm, Coombe Lane, Teignmouth TQ14 9EY | 01626 776042 | |
| David Wyatt | 3 Mansion View, 20-22 Oldway Road, Paignton TQ3 2TF | 07526376681 | |
| Daviker Ltd | City View House, Union Street, Ardwick, Manchester M12 4JF | 0845 250 8060 | |
| Davis Ground IT Services Ltd | Unit 19 Mercia Business Park, Coventry CV4 8HX | 02476920075 | |
| Davitek | Willow Garth, Back Lane, Hemingbrough, Selby YO8 6QP | 01757638013 | |
| Db Data Comms Ltd | 41 Lower Manor Lane, BURNLEY BB12 0EB | 07971264614 | |
| DBL Software Ltd | PO Box 2235, Salisbury SP2 2FE | 01980 863505 | |
| DCFM Telecom Ltd | DCFM Telecom Ltd, 1 Bridge Street, Boston PE21 8QF | 01205 310644 | |
| Diazone Computer Services Ltd | C/o 69 Lane Field Road Bideford, Devon EX39 3RD | 07950 371041 | |
| DCS Voice & Vision Ltd | Unit 7 Titan Court, Laporte Way, Luton, Bedfordshire LU4 8EF | 0870 871 7373 | |
| DD.PC.Services. | 2 Talbot Road, Margate, Kent CT9 2AR | 01843 228904 | |
| Deans Computer Services PLC | Boston Lodge, High Street, Boston Spa, Wetherby LS23 6EA | 01937 541411 | |
| Decorum Connect | |||
| dEdge Telecom and Technologies Ltd | Suite 2, Stafford Court, 178 Stafford Street, Wolverhampton WV1 1NA | 03302000188 | |
| Deep Blue Networks | Marston House, Walkers Court, Audby Lane, Wetherby, West Yorkshire LS22 7FD | 0333 240 9100 | https://www.deepbluetelecom.co.uk/ |
| Deep Blue Solutions Ltd | 28 Waterer Gardens, Tadworth, Surrey KT20 5PB | 01737 370 484 | |
| Deepdale Technical Services Ltd | 33a Scalby Road, Scarborough, North Yorkshire YO12 5PZ | 01723 370 689 | |
| Deepsense Ltd | 33 Longman Road, Barnsley S70 2LD | (0845) 3313333 | |
| deeserve Ltd | 2 Cedars Office Park, Butt Lane, Normanton on Soar LE12 5EE | 01509808586 | |
| Defaultroute | https://www.defaultroute.co.uk/ | ||
| Define Telecommunications and Data Ltd | Stirling Way, Borehamwood, Borehamwood WD6, 2HP | 0208 736 0444 | |
| Definitive Networks Ltd | The Beacon, Llanelli Gate, Dafen, Carmarthenshire SA14 8LQ | 01554 253 003 | |
| Dellmont Sarl | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | https://www.dellmont.com/ |
| Delta 365 Ltd | 3000 Hillswood Drive, Hillswood Business Park, Lyne KT16 0RS | 01932504900 | |
| Delta Comtech LTD | Artillery House, Heapy Street, Macclesfield SK11 7JB | 0844 412 8102 | |
| Delta Sound Inc UK Ltd | Unit C, Imber Court Trading Estate, Orchard Lane, Molesey KT8 0BY | 020 8339 3869 | |
| Delta2 Communications | unit 1 , woodlands farm, kirk deighton LS224EJ | 07984527713 | |
| Deltabit IT | 8 Lloyds Court Manor Royal, Crawley RH10 9QU | 02070847400 | |
| Dental IT | 2 The Barn, Hathersage Hall, Business Centre, Hathersage S32 1BB | 01433 377 977 | |
| Dentech IT Ltd | Courtwood House, Silver St Head, Sheffield S1 2DD | 01142792820 | |
| Denver IP Ltd | 71-75 Shelton Street, COVENT GARDEN, LONDON WC2H 9JQ | 08002545000 | |
| Denwa Ltd | Lancashire Digital Technology Centre, Bancroft Road, Burnley, Lancashire BB10 2TP | 01282 471857/0845 0761001 | |
| DERBYSHIRE COMMUNICATIONS Ltd | 1 Coupe Street, Ripley DE5 3QD | 01246912015 | |
| Derek Law Associates | Stonebridge House, Main Road, Hawkwell SS54JH | 01702810060 | |
| Derek Wildman | 5 St Monica's Drive, Bootle, Liverpool L30 2RN | 07913349102 | |
| Design and Management Systems | Highwood, Old Dartford Road, Farningham DA4 0EB | 01322 420140 | |
| Design Communications (UK) Ltd | Freedom House, 5 Abbeyfields, Bury St Edmunds IP33 1AQ | 01787 249 444 | https://www.designcom.co.uk/ |
| Design IT Solutions Ltd | High Edge Court, Heage, Belper, Derbyshire DE56 2BW | 01252 360480 | |
| Design Telecommunications | http://www.dtelecom.co.uk/ | ||
| Design Telecoms Networks Ltd | 14 Foxhunt Grove, Calcot, Reading RG317PE | 02083359003 | |
| Desk Comms Ltd | 207-209, Southwark Bridge Road, London SE1 0DN | 02034342068 | |
| Destar Ltd | Innovation House, Molly Millars Close, Wokingham, Wokingham RG41 2RX | 07785506661 | |
| DestiNet Ltd | Bradley House, Exeter EX2 7HU | 01392 441941 | |
| Destiny Business Solutions Ltd | Unit 20, Boardman House, 64 Broadway, Stratford E15 1NT | 02033840914 | |
| Development Machine Ltd | The Fleets, Fleets Lane, Rylstone, Skipton BD23 6NA | 01756730123 | |
| Deverill Ltd | Phoenix House, Poole BH17 7AG | 01202785000 | |
| Dg Uk Ltd | 97 HARROW ROAD, LEICESTER LE3 0JY | 07825705224 | |
| DG Wholesale Ltd | The Hemmel, Blagdon Lan, Cramlington NE23 8AU | 08002 800030 | |
| Dgtal-Mind Ltd | 30 Tyndall Gardens, 60 Tyndall Road, London E10 6QL | 02086373121 | |
| Diacom Networks Ltd | The Springboard Centre, Mantle Lane, Coalville LE67 3DW | 01332404202 | |
| Dial 123 | 1st Flloor, 2 Woodberry Grove, London N12 0DR | 0333 555 9372 | https://www.dial123.co.uk/ |
| Dial 9 | https://www.dial9.co.uk/ | ||
| Dial 9 Communications Ltd | Unit 9, Winchester Place, North Street, Poole, Dorset BH15 1NX | 033 0088 0900 | https://www.dial9.co.uk/ |
| Dial Around | https://www.dialaround.co.uk/ | ||
| Dial Associates Ltd | Millbrook, High Bickington, Umberliegh, Devon EX37 9BX | 0845 458 6994 | |
| Dial Direct UK Ltd | 17 Fairway, Branston, Burton on Trent, Staffordshire DE143EH | 01283517999 | |
| Dial Tone Ltd | 3 ST CRISPINS COURT, 40-42 ST CRISPINS CLOSE, LONDON UB1 2UT | 01582505020 | |
| Dial-A-Code | http://www.dialacode.com/ | ||
| Dialect Telecom Ltd | Whitworth Chambers, George Row, Northampton NN1 1DF | 01604 212 258 | |
| DialWise | https://www.dialwise.co.uk/ | ||
| Diamond Communications | https://www.diamond-group.net/ | ||
| Diamond Communications (NE) Ltd | 1 St. Bede's, Station Road, East Boldon, Tyne and Wear NE36 0LE | 0844 412 2033 | |
| Diamond Communications (UK) LTD | 13 Rochester Court, Anthony's Way, Medway City Estate, Kent ME2 4DN | 01634290879 | |
| Diamond Solutions (Uk) Ltd | 45 Knowsley Street, Bury BL9 0ST | 03304004455 | |
| Diazone Computer Services Ltd | Exeter House, 1 Amor Way, Letchworth, Herts SG6 1UG | 01462 489 700 | |
| DIDWW Ireland Ltd | 10/13 Thomas Street, The Digital Hub, Dublin 8, Ireland | 020 8099 5011 | https://www.didww.com/ |
| Difference Corporation Ltd | Merlin House, Langstone Business Park, Newport NP18 2HT | 0844 4931100 | |
| Digi Toolbox Ltd | Suite 7, Unit 4,, IO Centre,, Stephenson Road,, Fareham PO15 5RU | 01489 297070 | |
| Digicom Telecom Ltd | Unit D2, Tariff Road, London N17 0EB | 020 3500 0450 | |
| Digicomm 360 Ltd | 468 Halliwell Road, Bolton BL1 8AN | 03704446540 | |
| Digiquip Group Ltd | Unit 4 Wayside, 7 Commerce Way, Lancing Business Park, Lancing, West Sussex BN15 8SW | 0844 499 4810 | https://www.digiquip.co.uk/ |
| Digit Info-Tec Ltd | The Hydra Building, Unit 3 Warren Road, Indian Queens Industrial Estate, St Columb, Cornwall TR9 6TL | 01726 390 020 | |
| Digit Telecom | ELmsdale House, Mansfield NG18 5AJ | 07814933525 | |
| Digita1 LTD | 49 Muirhead Road, Stenhousemuir, Falkirk FK5 4JD | 01324876365 | |
| Digital Angel Radio Communications | https://www.da-rc.co.uk/ | ||
| Digital Communication Systems Ltd | 7 - 8 Benton Terrace, Sandyford Road, Newcastle Upon Tyne NE2 1QU | 0191 209 4444 | |
| Digital Continuity Ltd | 2nd Floor, Old Inn House, 2 Carshalton Road, Sutton, Surrey SM1 4RA | 0845 177 7171 | |
| Digital Craftsmen | https://www.digitalcraftsmen.net/ | ||
| Digital Dragons IT Ltd | Cardiff House, Cardiff Road, Barry CF63 2AW | 01446327329 | |
| Digital Eden Ltd | 2 Rosewood Drive, Crews Hill, Enfield, Middlesex EN2 9BT | 0203 369 3789 | |
| Digital Evolutions Ltd | 72B Wollaton Road, Beeston, Nottingham NG9 2NZ | 08458054870 | |
| Digital Exchange Ltd | President Park, President Way, Sheffield S4 7UR | 0114 221 2000 | |
| Digital Exchange Products Ltd | Paragon House, Lord Street South, Leigh, Lancashire WN7 1YB | 01942 770000 | |
| Digital Highway LTD | Raven House, Kingsgate, Bradford BD1 4SJ | 01274 200400 | |
| Digital interactive Ltd | 4 Montgomery Mews, Commercial Road, EASTBOURNE BN213GA | 07707704215 | |
| Digital ip | |||
| Digital Mail Ltd | 70-74 City Rd, London EC1Y 2BJ | 020 7060 2000 | https://www.digitalmail.com/ |
| Digital One Network Services LLP | 4 Holly Court, 17 Florence Road, Bournemouth BH5 1EH | 0844 742 2037 | |
| Digital Orchard IT Ltd | 10 York Place, Edinburgh EH1 3EP | 01312080080 | |
| Digital Origin Solutions Ltd | Chandos House, School Lane, Buckingham MK18 1HD | 01280 823904 | |
| Digital Phone Company Ltd - | 16 Southgates Road, Great Yarmouth, Norfolk NR30 3LJ | 0845 000 6000 | |
| Digital Select Ltd | Rowan House, 28 Queens Road, Hethersett, Norwich NR9 3DB | 033 0377 7700 | https://www.digitalselect-uk.com/ |
| Digital Telecom Ltd | llanthony Industrial estate, Gloucester GL2 5HL | 01452 382382 | http://www.digital-telecom.co.uk/ |
| Digital Telecom Airtime Ltd | Unit 28 Leslie Hough Way, Salford University Park, Salford M6 6AJ | 0845 873 8994 | |
| Digital Telecom Uk Ltd | 2B Crown Business Park, Rochdale OL11 2PU | 01706 507356 | |
| Digital Torque Ltd | Unit f Pentagon Park., Lodge farm estate, Duston, northampton NN5 7UW | 01604 319393 | |
| Digital Utilities Ltd | The Sharp Project, Thorpe Road, Manchester M40 5BJ | 08450521354 | |
| Digital Voice & Data | Walnut Farm Science Park, Lockgate Road, Sidlesham Common, Chichester,, West Sussex PO20 7QQ | 01243 510 904 | |
| Digital Wholesale Solutions Worldwide Ltd | 31 Commerce Road, Lynch Wood, Peterborough PE2 6LR | 0333 006 6332 | |
| Digital World Direct Ltd | Bramble Well, Rye Road, Rye Foreign, East Sussex TN31 7SX | 08453 456 575 | |
| Digital WWW Ltd | 29 Kestrel Avenue, London SE24 0ED | 020 7147 7001 | |
| Digitall Comms Ltd | The Old Clockhouse, 46-48 Odsal Road, Bradford BD6 1AQ | 01274602504 | |
| Digitalphobia Ltd | 1 Hinksey Business Centre, North Hinksey Lane, Oxford OX2 0NR | 01865322100 | |
| Digitech Solutions Global Ltd | The Business Centre, 1 Finway Luton LU1 1TR | 0800 0771060 | http://www.digitechsolutions.com/ |
| Digitel Ltd | 9 Arlington Avenue, Worthing, West Sussex BN12 4SX | 01903 503893 | |
| Digitel Europe Ltd | Communications Centre, 1 Ivy Street, Priory Industrial Estate, Birkenhead, Merseyside CH41 5EE | 0151 6500065 | |
| Digitel Europe T/A iNET | https://www.digiteleurope.co.uk/ | ||
| Digitel Technology Ltd | 7 Cross Street, Barnstaple, Devon EX31 1BA | 0870 750 0551 | |
| Digitrol Ltd | Digitrol House, Cronet Way, Enterprise Park, Swansea SA6 8RH | 01792 796000 | |
| Digiweb Ltd | IDA Business & Technology Park, Dundalk, Co. Louth, A91 KR80, Ireland | 1800 28 58 28 | https://www.digiweb.ie/ |
| Dimasoft Ltd | Amron House, Borough Road, North Shields NE29 6RN | 01912704371 | |
| Dimension Data Visual Communication Ltd | Laser House, 132-140 Goswell Road, London EC1V 7DY | 02072517000 | |
| Dimentum Ltd | 145-157 St. John Street, London EC1V 4PW | 08005202320 | |
| Direct 2 Door Ltd | 143 Loughborough Road, Leicester LE4 5LR | 07417582911 | |
| Direct Connect Telecom Ltd | Kemp House, 160 City Road, London EC1V 2NX | 08443510661 | |
| Direct Data Systems Ltd | 38 Prescott Street, Halifax, West Yorkshire HX1 2QW | 01422 253 094 | |
| Direct Line Communications Ltd | Unit 1, Evans Way, Rowleys Park, Shotton, Flintshire CH5 1QJ | 01244 819944 | https://www.dlc.co.uk/ |
| Direct Market Services Ltd | Harvey House, St Edwards Court, London Road, Romford RM7 9QD | 01708756555 | |
| Direct Response Ltd | 9 Winchester House, Kennington Business Park, Cranmer Road, London SW9 6EJ | 0870 414 9000 | |
| Direct Save Telecom | Hartcran House, Gibbs Couch, Carpenders Park, Herts WD19 5EZ | 0800 027 3930 | https://www.directsavetelecom.co.uk/ |
| Direct Telecommunications Systems Ltd | 2D Belle Walk Moseley Birmingham West Midlands B13 9DF | 0121 552 6624 | |
| Direct Telecom Network Ltd | The Quadrant, 99 Parkway Avenue, Sheffield S9 4WG | 0844 598 4488 | http://www.direct-telecom.com/ |
| Direct Telecommunications (London) Ltd | 5 Drakes Courtyard, 291 Kilburn High Road, London NW6 7JR | 020 7328 0040 | http://www.dtll.co.uk/ |
| Direct Telecommunications Systems Ltd | 16 Commercial Road, Skelmanthorpe, Huddersfield HD8 9DA | 01484 867 867 | |
| Direct Telecoms Ltd | Suite 3 Anson Court, Horninglow Street, Burton upon Trent DE14 1NG | 0844 815 6604 | |
| Direct Telephone Services Ltd | Alexandra House, Talbot Road, Manchester M16 OPG | ||
| Direct Voice and Data | https://www.direct-voiceanddata.com/ | ||
| Direct2Internet AB | |||
| Directory Business Services | Health Farm, Wellingore, Lincoln LN5 0DW | 01522 811 688 | |
| Direct-Tec Communications Ltd | Churchill court, Hortons Way, Westerham, Kent TN16 1BT | 0844 4142123 | |
| Direct-tec Solutions Ltd | Churchill Court, Hortons Way, Westerham, Kent TN16 1BT | 01959 568303 | |
| Direct-tec UK Ltd | Churchill Court, Hortons Way, Westerham TN16 1BT | 01959568300 | |
| Disconsulting IT Ltd | Unit 10, Priestley Road, Basingstoke KT15 1HJ | 01256479700 | |
| Discount Dial | https://www.discountdial.co.uk/ | ||
| Discount VoIP | https://www.discountvoip.co.uk/ | ||
| Discus Systems Plc | Patrick Farm Barns, Meriden Road, Hampton-in-Arden B92 0LT | 0800 880 3360 | |
| Diskovery Associates Ltd | 123 Bournemouth Road, Parkstone, Poole, Dorset BH14 9HR | 01202 733 365 | |
| Diskovery Business Services | 123 Bournemouth Road, Poole, Dorset BH14 9HR | 01202 733 620 | |
| Distant Voice Ltd | Unit 4, Circuit Centre, Avro Way, Brooklands Ind Park, Weybridge KT13 0YT | 033 3700 3331 | https://distantvoice.co.uk/ |
| Distinct Connections Ltd | The Old Bakery, 10 Back Road, Sidcup DA4 6HA | 020 8302 2200 | |
| Diva Telecom Ltd | Unit 4 Bramley Grange, Skeltons Lane, Leeds LS14 3DW | 0330 333 0330 | |
| Diving Monkeys Ltd | Internation House, 12 Constance Street, London E16 2DQ | 07957581568 | |
| DL I.T. Solutions Ltd | 571 Southmead Road, Filton, Bristol BS10 5NL | 0117 9895969 | |
| DM Business Solutions | Patrick House, 5 Maney Corner, Sutton Coldfield, West Midlands B72 1QL | 08707 525 354 | |
| Dm Office Solutions Ltd | The squirrels, Hexton Road, Lilley, Luton LU2 8LU | 07708 808808 | |
| DMV Communications Ltd | Fairgate House, 205 Kings Road, Tyseley, Birmingham B11 2AA | 0845 649 0786 | |
| DMV TECHNOLOGY Ltd | 35, Ladycross Road, Hythe, Southampton SO453JW | 02380004154 | |
| Docklands Telecom Centre Ltd | (being dissolved September 2014) | ||
| Document XL | XL House, Crown Business Park, Cowm Top Lane, Rochdale OL11 2PU | 0845 644 8600 | |
| Docutech Office Solutions Ltd | Suite 225 275 Great Northern House, Deansgate, Manchester M3 4EN | 08442596155 | |
| Doditec Automation Weighing Solutions Ltd | 12 TROW CLOSE, BEDFORD MK45 3BF | ||
| doetaylor Ltd | Business Design Centre, 52 Upper Street, London N1 0QH | 0800 881 8881 | |
| Doherty IT Solutions Ltd | 3 Water Lane, Richmond, Surrey, London TW9 1TJ | 02089871150 | |
| Dolphin Com Ltd | P.O. Box 157, Nantwich, Cheshire LW5 7XD | 0800 195 2544 | |
| Dolphin Com T/a Callready | https://www.callready.co.uk/ | ||
| Dolphin Communications LTD | Llwyn onnen, Dryslwyn SA32 8RJ | 07855750727 | |
| Dolphin ICT Ltd | US15a, Armstrong House, First Avenue, Robin Hood Airport, Doncaster DN93GA | 01302638722 | |
| Dolphin ONE Communications LLP | Unit 23 Blundells Road, Bradville Industry, MILTON KEYNES MK13 7HB | +44 1908 222122 | |
| DOM Computer Services | Adams Plain, Bakers Lane, Garway Hill, Herefordshire HR2 8RT | 01989 941 033 | |
| Domino Networks Ltd | 3 Nile Close, Nelson Court Business Centre, Preston PR2 2XU | 01772 760700 | |
| Domy Ventures Ltd | 20-22 Wenlock Road,, London N1 7GU | 03306060844 | |
| Doncaster Telecom | https://www.1call.co.uk/ | ||
| Doodles Direct Ltd | Hadleigh Business Centre, Crockatt Road, Hadleigh, Ipswich IP76RH | 08006921515 | |
| Dorydale Ltd | 20 Miles Street, London SW8 1SD | 020 7793 0395 | |
| Double Edge Professional Services Ltd | 38-40 Artillery Lane, London E1 7LS | 020 3137 8460 | |
| DoubleDial | 4 Paradise Street, Sheffield S1 2DF | https://www.doubledial.co.uk/ | |
| Dove Computer Solutions Ltd | Unit 1, Henmore Trading Estate, Mayfield Road, Ashbourne DE6 1AS | 01335818081 | |
| Dover Technology LTD | Kemp House, 160 City Road, London EC1V2NX | 01227392668 | |
| Dovetail IT Support Ltd | 16 Cedarville Gardens, London SW16 3DA | 020 3370 9720 | |
| DP | Beckett House, Soverign Court, Wyrefields, Poulton-le-Fylde FY6 8JX | 08436 366755 | |
| DPS Technology Group LLP | First Floor, 3 Cromwell Court, Greyfairs Road, Ipswich IP1 1UP | 01473 283 283 | |
| Dr Bios Computer Services | Hutton Grove, Richmond DL11 7UB | 0844 8842851 | |
| DR Data Ltd | 15 Dairylands Road, Church Lawton, Stoke on Trent STAFFORDSHIRE | 01782478916 | |
| Dragon Wifi Ltd | Willow Cottage, HAVERFORDWEST SA62 3NN | 01437763333 | |
| DragonMicro Ltd | 1 Brickfields Buisness Park, Woolpit, Suffolk, IP30 9QS, Bury St Edmunds IP30 9QS | 01359 243830 | |
| Drakonim Ltd | Suite 1A Post House, Adelaide Street, Swansea SA1 1SB | 08435158844 | |
| DrayTEL | Pyramid House, 956 Hight Road, London N12 9RX | 0845 557 5570 | https://www.draytel.org/ |
| DRD Communications Ltd | No 1 Croydon, 12-16 Addiscombe Rd, Croydon CR0 0XT | 020 8288 1234 | http://www.drd.co.uk/ |
| Dreckly Digital CIC | Calstock Village Hall, Calstock PL18 9QA | 01822 834418 | |
| Drogon Systems | 19 fore Street, Buckfastleigh TQ11 0BT | 01365 698 123 | |
| Dromaeus Ltd | 960 Capability Green, LUTON LU1 3PE | 0330 124 4340 | |
| Dronfield Computers | 27 Burns Drive, Dronfield, Chesterfield S18 1NJ | 01246580185 | |
| Dropjaw UK Ltd | 20 Main Street, Kimberley, Nottingham NG16 2LL | 0844 770 3806 | |
| Drum Brae Solutions Ltd | 7 Drumbrae Avenue, Edinburgh EH12 8TE | 0131 202 0330 | |
| DRWebhosting | Ellary, Lochgilphead, Argyll PA31 8PA | 0845 458 2503 | |
| DSH Electronics Ltd | 206 Idle Road, Bradford BD2 4JT | 01274 626 261 | |
| DSL Plus Ltd | 3 Prospect Court, Courteenhall Road, Blisworth, Northampton NN7 3DG | 01604 879 330 | |
| Dspritchard IT Solutions Ltd | 40, Middleton Avenue, Rothwell, Leeds LS26 0SE | 01134679128 | |
| DTech IT Ltd | Lynton House, Golden Hill, Leyland PR25 3NN | 01772454447 | |
| DTP Consultants Ltd | 3 The Courtyard, Warners Farm, Main Road, Chelmsford CM3 1BL | 0345 437 4442 | |
| DTS.Solutions (U.K) | https://www.direct-telecom-svs.co.uk/ | ||
| Dtx Telecommunications Ltd | Unit 2c Harewood Yard, Harewood, Leeds, West Yorkshire LS17 9LF | 0844 8870 700 | |
| du Pré plc | Vo-Tec Centre, Hambridge Lane, Newbury, Berkshire RG14 5TN | 01635 555 555 | |
| Dual Energy Direct Ltd | Premium House, The Esplanade, Worthing, West Sussex BN11 2BJ | 0845 521 4291 | |
| Dualtone Communications Ltd | 389 Ringwood Road, Poole BH12 4LT | 01202935001 | |
| Dub IT Solutions Ltd | Unit 2 Houghton Square, 378 Clapham Road, LONDON SW9 9AN | 02038174835 | |
| Duchy Network Solutions Ltd | Chy Jenner, Newham Road, Truro TR1 2DP | 01872 243113 | |
| duka PC UK Ltd | 1 Commercial Road, Eastbourne BN21 3XQ | 0330 223 2272 | |
| Dunblue Ltd | 8 Byford Court, Crockatt Road, Hadleigh, Suffolk IP7 6RD | 0845 680 6806 | |
| Dunedin IT Ltd | 22 Young Street North Lane, Edinburgh, Midlothian EH2 4JD | 0131 225 2215 | |
| Dunkers Ltd | Dunkers Limited, Duncairn, Doles Lane, Wokingham RG14 4EA | 0118 978 6259 | |
| Dunluce Communications Ltd | Whitehall Road, Leeds LS1 4AW | 07957527734 | |
| Dunston Business Village Ltd | Barn 2B, South Courtyard, Dunston Business Village Ltd, Dunston ST189AB | 01785711600 | |
| Dunston IT | Solutions House, 161 High Street, Aldershot, Hampshire GU11 1TT | 01252 406 420 | |
| DuoCall Communications Ltd | Unit 8, Genesis Business Park, Sheffield Road, Rotherham, South Yorkshire S60 1DX | 0333 313 5000 | https://www.duocall.co.uk/ |
| Du-Tel Ltd | |||
| DV Support | Suite 224, 29 - 30 Horsefair, Banbury OX16 0BW | 01295271545 | |
| DV02 Ltd | 4 Acorn Business Centre, Northarbour, Cosham, Portsmouth PO6 3TH | 0844 770 99 55 | |
| Dvi Utilities Ltd | COTTON PLACE, 2 IVY STREET, BIRKENHEAD CH41 5EF | 07702482319 | |
| Dvs Voice & Data Ltd | Stourbridge Road Ind Estate, Farday Drive, Bridgnorth WV15 5BA | 03301110044 | |
| Dwarf Ltd | 60 Regent Place, Birmingham B3 1UG | 0121 236 1888 | |
| Dwb Media Ltd | Kemp House, 160 City Road, London EC1V 2NX | 07710686537 | |
| Dwebs Ltd | 207 Preston New Road, Marton, Blackpool FY3 9TU | 0330 22 90 666 | |
| DWG Telecoms LTD | The Old Workshop, Kennerleys Lane, Wilmslow SK9 5EQ | 08450177806 | |
| Dwlb Ltd | 61 Dunsmore Road, Walton on Thames, Surrey KT12 2LJ | 07423634606 | |
| Dyfed IT Solutions Ltd | Llysarad, Aberarad, newcastle emlyn SA389DB | 01239 545033 | |
| Dynamic Edge Communications Ltd | 7 Waverley Place, Aberdeen AB10 1XH | 0845 680 9660 | |
| Dynamic Mobile Billing Ltd | 12th Floor, Lyndon House, 58–62 Hagley Road, Birmingham B16 8PE | 0808 206 0808 | https://www.dynamicmobilebilling.com/ |
| Dynamic Networks Group Ltd | Junxion House, Headingley, Leeds LS5 2HR | 03334441231 | |
| Dynamics Computer Consultants Ltd | 5e Longrock Industrial Estate, Penzance, Cornwall TR20 8HX | 01736-888123 | |
| DyslexiaFriends Ltd | 130 old street, London EC1V 9BD | 01916455511 | |
| Dytex Technology Ltd | Treverbyn, Bray Shop, Callington PL17 8QA | 01579370359 | |
| E & S Computers | 24a Ditton Street, Ilminster TA19 0BQ | 01460 259999 | |
| E.S. Systems Ltd | Systems House, Fulforth Farm, Witton Gilbert, Durham DH7 6TU | 01913712392 | |
| E164 | Berrycentre, Chiltern Drive, Surbiton, Surrey, KT5 8LS | ||
| e247 Ltd | 85 London Road, Cheltenham GL52 6HL | 01392 247247 | |
| E2BN Protex Ltd | Unit 1-2 Saltmore Farm, New Inn Road, Hinxworth, Baldock SG7 5EZ | 01462 834588 | |
| E2E Technologies Ltd | 19a Barnstone Lane, Moreton, Wirral, Merseyside CH46 7TN | 0151 203 2040 | |
| E7even UK Ltd | Suite C9, Powerhub Business Centre, St. Peters Street, Maidstone ME16 0ST | 0870 224 5122 | |
| EA Systems & Support Ltd | East Wing, 3 Lorne Park Road, Bournemouth, Dorset BH1 1AH | 01202 614 061 | |
| Eagle Promotions Ltd | Unit 1 Clearway Court, 139-141 Croydon Road, Caterham, Surrey CR3 6PF | 01883 344 244 | |
| Eagle Telecoms Ltd | 130 Chilton street, Bridgwater TA6 3HZ | 01278258021 | |
| Earley Consulting Ltd | 18 Tudor Close, Carleton, Poulton-le-Fylde FY67TD | 03335776166 | |
| Easi-tel Ltd | Eagle Tower, Montpellier Drive, Cheltenham GL50 1TA | 0333 772 9878 | |
| East Devon IT Ltd | The Hub, York Street, Sidmouth, Devon EX10 8BW | 01392 908 000 | |
| East Finchley Electrical Contractors Ltd | 115 High Road, East Finchley, London N2 8AG | 0208 883 9098 | |
| East London Small Business Centre Ltd | Universal House, 88-94 Wentworth Street, London E1 7SA | 02073778821 | |
| East Midlands Online Ltd | Suite 4 Onsite Lodge, Mansfield Road, Eastwood, Nottingham NG16 3AR | 0843 330 2194 | |
| East Point Business Services Ltd | Hamilton House, Battery Green Road, lowestoft NR321DE | 01502445400 | |
| Eastern IT LTD | 207 Regent Street, London W1B 3HH | 08458340300 | |
| Eastern Telephones Ltd | Wensum Mount Business Park, Low Road, Hellesdon, Norwich NR5 9AA | 01603 743 388 | |
| Eastern Voice | https://www.easternvoicedata.co.uk/ | ||
| Eastern Voice and Data Hosted | 1-2 Bowthorpe Works, Bowthorpe Hall Road, Norwich, Norfolk NR5 9AA | 01603 743388 | |
| Eastfield.Online Ltd | 18, Eastway, Eastfield, Scarborough YO11 3LT | 07525783895 | |
| Eastquayit Ltd | Unit 1 Jupiter COurt, Orion Business Park, North Shields NE29 7SE | 03302020408 | |
| Easy Digital Solutions Ltd | 17 Webster Road, AYLESBURY HP21 7FL | 0333 358 0160 | |
| Easy Fibre Ltd | 140-142, St John Street, Farringdon, London EC1V 4UA | 01413751987 | |
| Easy IT Ltd | Dial Barn, Holly Bush Hill, Great Bentley CO7 8RN | 01206 804758 | |
| Easy Networks Ltd | unit 1.1 Central Point, Kirpal Road, Portsmouth PO3 6FH | 02392778800 | https://www.easy.co.uk/ |
| Easy Utilities Ltd | Suite 6, Bridgewater House,, Surrey Road, Nelson BB9 7TZ | 0844 4120002 | |
| Easy Wi-Fi Ltd | Office 8, Maylands Business Center, Redbourn Rd, Hemel Hempstead HP2 7ES | 01442531040 | |
| Easycallnow | https://www.easycallnow.net/ | ||
| easyCloudIT Ltd | 2 Blenheim Road, Ramsey PE26 1AL | 01480 878619 | |
| Easycontactnow | https://easycontactnow.com/ | ||
| Easycopiers Ltd | Innovation House, Presley Way, Crownhill, Milton Keynes MK80ES | 08445832800 | |
| Easy-Dial | PO Box 8213, Chiswick, London W4 3WR | 020 8987 9552 | https://www.easy-dial.com/ |
| Easynet | 5 Thomas More Street, Thomas More Square, London E1W 1YW | 020 7032 5000 | |
| Easynet Network Services Ltd | Easynet Ltd, St James House, Oldbury, Bracknell RG12 8TH | 01344 543 700 | |
| Easypc Ltd | Unit 1, Europa Way, Norwich NR12EN | 01603 670582 | |
| Eaton IT Ltd | 54 Gathurst Lane, Shevington, Wigan WN6 8HW | 01772 285285 | |
| Eav Group Ltd | Unit 3, Jacks Park, Cinque Ports Road, New Romney TN28 8AN | 07789930119 | |
| EBB Wholesale | 9 Ashton Gate, Ashton Road, Romford, Romford RM3 8UF | 01708932911 | |
| Ebbe Fone Galleria Ltd | 1-2 Kingsway Buildings, Kingsway, Burnage, Manchester M19 1PH | 0161 442 2000 | https://www.ebbe.co.uk/ |
| EBC Group (UK) Ltd | 221 Hagley Road, Halesowen B63 1ED | 0121 585 4400 | |
| Ebor Operations Ltd | The Saddlers, Lodge Farm, Appleby, Brigg DN15 0DB | 0333 344 3033 | |
| Ebrey IT | Chase End, Shrewsbury Road, Shropshire SY4 5PP | 0333 240 7310 | |
| EBS Europe Ltd | 3a Dublin Meuse, Edinburgh EH3 6NW | 07789 434 106 | |
| EBS Solutions | 74 Maldon Road, Southend on sea SS2 5AZ | 01702668203 | |
| Ebstar Ltd | Ebstar, Hanover Street, stoke-on-trent ST5 1HD | 01782 557700 | |
| EBT Maintenance Ltd | 4 Farrington Way, Eastwood, Nottingham NG16 3BF | 0800 840 4181 | |
| EC Computers Ltd | The Granary at Hortham Farm, Hortham Lane, Almondsbury BS32 4JW | 0117 200 1000 | |
| EC Technical Services Ltd | Swithin House, 37Norton Road, Stourbridge, West Midlands DY8 2AG | 0845 141 0080 | |
| E-Cable Subscriptions Ltd | 160, City Road, Kemp House, London EC1V 2NX | 07766304087 | |
| Eckoh UK Ltd | Telford House, Corner Hall, Hemel Hempstead HP3 9HN | 01442 458300 | https://www.eckoh.com/ |
| Eclarity Solutions Ltd | Network House, 10g Buntsford Park Road, Bromsgrove, Worcs B60 3DX | 01527 908 865 | |
| Eclipse Networking Ltd | Osprey House, Osprey Road, Exeter EX2 7WN | 0845 122 4333 | |
| Eclipse Broadband Ltd | Global House, 60B Queen Street, Horsham RH13 5AD | 01392 330 296 | |
| Eclipse Internet Communications Ltd | 1 Longacre, Clevedon BS21 7YX | 07897755886 | |
| Eclipse IT Services Ltd | 75 CANAL STREET, n/a, n/a, BARNSLEY S71 1LR | 07734460958 | |
| Eclipse Office Technologies Ltd | Pacific House, Parkhouse, Carlisle, Cumbria CA3 0LJ | 0844 887 5050 | |
| Eclipse Technology Services Ltd | 9 Minet Drive, Hayes UB3 3JN | 020 8797 7799 | |
| Eclipse Telecom Networks Ltd | |||
| Eco Communications Ltd | Unit 4 Creca Sawmill, Creca Industrial Estate, Annan DG12 6RP | 01461500206 | |
| Eco IP Communicayions Ltd | The Bristol Office, 2 Southfield Road, Bristol BS9 3BH | 0117 911 2992 | |
| Eco Isp Ltd | 21, Ffos Y Cerridden, Nelson, Treharris CF46 6HQ | 07774318840 | |
| EcoDial Ltd | Alexander Business Park, St Helens WA10 3TP | 08000465098 | |
| eConker.com Ltd | 6 Soho Road, Nishkam Centre, Birmingham B21 9BH | 03333354320 | |
| Economy Calls | Churchill House, Churchill Way, Cardiff CF10 2HH | 0845 234 0200 | |
| Ecosse | https://www.ecosse.net/ | ||
| Ecosse Group Ltd | PO Box 16279, Glasgow G13 9BE | 0870 403 0140 | |
| Ecosse Technology and Communications Ltd | 11 Maybole Road, Ayr KA7 2PZ | 0141 950 2640 | |
| Ecotalk Ltd | Lion House, Rowcroft, Stroud GL5 3BY | 0333 800 5500 | |
| Ecotel Networks (Ireland) | http://ecotelnetworks.com/ | ||
| Ecotel Networks Ireland Ltd | 6 Greenburn River Mews, 23 Ballynure Road, Ballyclare, Northern Ireland BT39 9AG | 08444 41880 | |
| Ecotele | http://www.ecotele.co.uk/ | ||
| Ecovoip Ltd | 20, WENLOCK ROAD, LONDON N1 7GU | 03330237845 | |
| ECS Computers Ltd | 98-99 London Road, King?s Lynn, Norfolk PE30 5HA | 01553 692 727 | |
| Ecservers Ltd | 38 kensington gardens square, London W2 4BQ | 02036036456 | |
| Edanpower Ltd | Unit 4B Great Barr Business Park, Baltimore Road, Great Barr, Birmingham B421DY | 01213990023 | |
| Eden Currie Business Technology Ltd | Pegasus House, Solihull Business Park, Solihull B90 4GT | 0330 822 0133 | |
| Eden Services Scotland | 43 Ellens Glen Road, Edinburgh EH17 7QJ | 01316643906 | |
| Eden Telecom Ltd | Axiom House, Moorfield Business Park, Moorfield, Yeadon, Leeds LS19 7YA | 0113 892 1115 | |
| Edge Telecommunications Ltd | Global House, Allenby Business Village, 2a Crofton Close, Lincoln LN3 4NT | 0870 6071038 | |
| Edgecoms Ltd | Unit 13, Waterwells, Gloucester GL2 2AP | 08456448310 | |
| Edinburgh Computers Ltd | 4 South Clerk Street, Edinburgh EH89JE | 0131 6629955 | |
| Edinburgh Network Technologies Ltd | 12 Dock Place, Edinburgh EH6 6LU | 0845 119 9970 | |
| Edison Networks Ltd | 7 Whimbrel Close, Sanderstead, South Croydon CR2 0RW | 07826871878 | |
| Ed-IT Solutions (UK) Ltd | Unit 1, Willow Mill, Fell View, Caton, Lancaster LA2 9RA | 01524771950 | |
| Edmondsons IT Services Ltd | Unit 8G, Ponderosa Business Park, Heckmondwike WF16 0PR | 01924666660 | |
| Educom Ltd | 60 Nore Road, Dublin Ind Estate, Glasnevin, Dublin DUBLIN 11 | 018601995 | |
| Edward Martin Computer Services | Unit 1, Roughmoor Industrial Estate, Wilton, Somerset TA4 4RF | 01984 633603 | |
| Everything Everywhere Ltd | Hatfield Business Park, Hatfield, Herts AL10 9BW | 0845 412 5000 | https://ee.co.uk/ |
| Everything Everywhere Ltd | Hatfield Business Park, Hatfield, Herts AL10 9BW | 0845 412 5000 | https://ee.co.uk/ |
| eemits Communications | https://www.eemits.co.uk/ | ||
| eeZee IT Ltd | Suite 2A, Gatwick House, Peeks Brook Lane, Horley RH6 9ST | 01293771123 | |
| EEZPC Ltd | Mearns House, Kirkton of Auchterless, Turriff, Aberdeenshire AB53 8BG | 01888 511552 | |
| Efar Ltd | The Old Library, 6 Linden Road, Clevedon BS21 7SN | 01275 797900 | |
| Effbee Telecoms Ltd | 20-22 Wenlock Road, London N1 7GU | 07904568535 | |
| Effective Communication Solutions Ltd | 43 Bradford Road, Tingley, Wakefield WF3 1RG | 08450 515 030 | |
| EG Technologies Ltd | 1 Andromeda House, Calleva Park, Aldermaston, Reading RG7 8AP | ||
| Egton Medical Information Systems Ltd | Fulford Grange, Micklefield Lane, Rawdon, Leeds LS19 6BA | 0113 380 3000 | |
| EHL Networks Ltd | 10 Railton Road, Wolseley Business Park, Kempston, Beds MK42 7PN | 01234 851 167 | |
| Eight Networks Ltd | Skirsgill Business Park, Penrith CA11 0FA | 0845 456 9889 | |
| eInfinity Ltd | Tredomen Business and Technology Centre, Tredomen Park, Hengoed, Caerphilly CF82 7FN | 01443813535 | |
| Eipsys Ltd | 60 Shalford Road, Rayne, Braintree, Essex CM77 6BY | 020 7100 2599 | |
| Eircom (UK) Ltd | Davenport House, 16 Pepper Street, Glengall Bridge, London E14 9RP | 0800 039 2000 | https://www.eir.co.uk/ |
| Eircom NI Ltd | Forsyth House, Cromac Square, Belfast BT2 8LA | 028 9000 2100 | http://www.eircomni.co.uk/ |
| EIS Computing Ltd | 82 Goldings Road, Loughton IG10 2QN | 08432891449 | |
| Eison Ltd | 18 The Embankment, Vale Road, Stockport SK4 3GN | 08448009213 | |
| e-know.net Ltd | Datapoint House, 400 Queensway Business Park, Queensway, Telford TF1 7UL | 01952 225000 | |
| Eko-Sys Ltd | Redcare, West Burnside, Laurencekirk, Kincardineshire AB30 1UY | 03444 099880 | |
| EKTE Ltd | The Old School House, Bridge Road, Hunton Bridge, Herts WD4 8RQ | 0333 344 6501 | |
| Elanet Ltd | 6 St John's Court, Vicars Lane, Chester CH1 1QE | 03333583595 | |
| Elara Technology Group Ltd | Unit 17 Tromso Close, Tyne Tunnel Trading Estate, North Shields NE29 7XH | 01914661600 | |
| Electrodune | Flat 33 Halyard House, Manchester Road, London E14 3HD | 02030111020 | |
| Electronic Business Systems Ltd | 852 Tyburn Road, Erdington, Birmingham B24 9NT | 01213842513 | |
| Electronic Data Processing PLC | Fourth Floor, Fountain Recinct, Balm Green, Sheffield S1 2JA | 01142622000 | |
| Electronic Media Services Ltd | Passfield Business Centre, Lynchborough Road, Liphook GU30 7SB | 01428 751655 | |
| Electronic Security Phone Systems ltd | 3 Chapman Lane, Bourne End SL8 5PB | 01628 531531 | |
| ElemenTel Ltd | 2 Mountbatten Business Centre, Millbrook Road East, Southampton SO15 1HY | 02381 103333 | https://www.elementel.co.uk/ |
| Eleven IT Consulting Ltd | 17, Church Lane, Husbands Bosworth, Lutterworth LE176LS | 01858455101 | |
| Eleven Utilities Ltd | 15 Alicia Way, Gwent, Newport NP20 2FL | 07538375730 | |
| Elexaar Ltd | 78 Trym Side, Bristol BS9 2HQ | 07454243247 | |
| Elite Business Systems UK Ltd | 26-27 Chartergate, Quarry Park Close, Moulton Park, Northampton NN3 6QB | 0870 899 3355 | |
| Elite Cloud Solutions Ltd | 41 Burnt Oak Lane, Sidcup, Kent DA15 9BZ | 020 7148 7680 | |
| Elite Group | |||
| Elite Telecom Solutions Ltd | 5a Scylla Business Park, Winnall Valley Road, Winchester SO23 0LD | 01962 864332 | |
| Elite Telecoms (Dorset) Ltd | Suite 2, Cleveland Court, Cleveland Road, Bournemouth, Dorset BH1 4QB | 01202 392 970 | |
| EliteCalls | https://www.elitecalls.com/ | ||
| Elitetele.com PLC | Matrix Industrial Park, Eaton Ave, Buckshaw Village, Chorley Lancs PR7 7NA | 0344 875 8880 | https://www.elitegroup.com/ |
| Elitex Ltd | 26 Beeches Walk, Sutton Coldfield B73 6HN | 0121 321 2121 | |
| Elmbrook Computers Ltd | Alpha Place, Garth Road, Testing Ave, Morden SM4 4TS | 02084104444 | |
| Eloquent Technologies Ltd | Calyx House, South Road, Taunton, Somerset TA1 3DU | 0800 2100106 | |
| ElpaTech Ltd | 33 London Street, Andover SP10 2NU | 01264748043 | |
| Elro Electronics Ltd | 408a Wokingham Road, Earley, Reading RG6 7HX | 07702159140 | |
| Eltham Communications Ltd | 159 Eltham High Street, London SE9 1TW | 020 8850 2233 | |
| EMA IT SOLUTIONS LLP | 136, Sandwich Road, Whitfield, Dover CT163JP | 07976600976 | |
| Emedia Telecom | 32 Grove Place, Bedford MK40 3JJ | 0845 226 0260 | |
| Emerald Telecommunications Ltd | 184 greenheath road, hednesford, cannock, Cannock WS12 4AZ | 01543425045 | |
| Emerito Ltd | Church Road, Crockenhill BR8 8JY | 0870 2336840 | |
| Empanda | |||
| Empela Ltd | Lytchett House 13 Freeland Park Wareham Road, Lytchett Matravers, Poole BH16 6FA | 01484959727 | |
| Empower IT Solutions Ltd | 11 Broad Meadow, Ipswich, Suffolk IP8 3SP | 01473 557 203 | |
| E-mpower.IT Ltd | Suite J, KBF House, 55 Victoria Road, Burgess Hill RH159LH | 01444 250404 | |
| Empowered Solutions Ltd | The Old School HOuse, Tamworth Road, Long Eaton NG101BE | 01159460033 | |
| EMS | https://ems-uk.com/ | ||
| Emtel Ltd | Renewal Trust Business Centre, 3 Hawksworth Street, Nottingham NG3 2EG | 0115 947 5952 | |
| Emysea UK Ltd | 145-147 St John Street, London EC1V 4PW | 01992 666 525 | |
| Enable Advisors Ltd | Kenwood House, 77a Shenley Road, Borehamwood WD6 1AG | 03337722123 | |
| ENABLE GAMING CIC | 44, Church View, Winchburgh, Broxburn EH526SZ | 07538852266 | |
| Enables IT Ltd | Unit 5, Mole Business Park, Randalls Road, Leatherhead KT22 7BA | 01372453232 | |
| e-nasc eireann teoranta | Hamilton house, limerick V94 TRW8 | 035361274000 | |
| Enbel | |||
| Enbiz Ltd | 4 Shakespeare Avenue, Hawarden, Deeside CH5 3TB | ||
| End To End Telecoms Ltd | Unit 3, Artex Avenue, Rustington, Littlehampton BN16 3LN | 01903866443 | |
| Energy Angels Group Ltd | Kings House, St James Square, Wolverhampton WV2 4DT | 01902585500? | |
| Energy Prices Direct Ltd | 272, Bath Street, Glasgow G2 4JR | 01413541694 | |
| Energy Simple Ltd | Unit 3, Netherton Court, Infirmary Walk, Worcester WR1 3AU | 01905384222 | |
| Energy Telecom Ltd | Freepost Energy Telecom, PO Box 6918, Derby DE1 9EL | 0870 755 6699 | |
| Enet Telecommunications Networks Ltd | hamilton house, national tech park, plassey, limerick V94TRW8 | ||
| Engaged CRM | https://www.engagedcrm.co.uk/ | ||
| Engineering Intelligence Ltd | 4 Torr Street, Glasgow G22 5ED | ||
| Enhanced Computer Solutions Ltd | 3 New Fields, Stinsford Road, Poole BH17 0NF | 01202 308 000 | |
| Enhanced IT Ltd | Adelaide House, Perth Trading Estate, Slough SL1 4XX | 020 7122 1227 | |
| Enhanced Networks Ltd | 54, Hunters Close, Oakley, Basingstoke RG23 7BG | 07932843577 | |
| Enlinea Ltd | 278 St Vincent Street, Glasgow G2 5RL | 0141 285 6677 | |
| Enlinea Networks Ltd | 278 St Vincent Street, Glasgow G2 5RL | 0141 285 6677 | |
| Ensign Communications Ltd | Unit 20/21 Sandford Lane, Wareham BH20 4DY | 01929 556553 | |
| Entamedia Ltd | Stafford Park 6, Telford, Shropshire TF3 3AT | 0333 101 5000 | |
| Entanet International Ltd | Stafford Park 6, Telford TF3 3AT | 0330 100 3550 | https://www.enta.net/ |
| Entegraty Professional Services Ltd | Unit 7 Peckleton Business Park, Peckleton LE9 7RN | 02083355910 | |
| Entelligent Value Enhancement Ltd | 107-109 Towngate, Leyland PR25 2LQ | 01772888000 | |
| Enter-at | 2 Bader Drive, Upper Heyford OX255TN | 01869220280 | |
| Enterprise Carrier Services Ltd | https://www.ecscomms.co.uk/ | ||
| Enterprise Ip Solutions Ltd | 1 Belmont House, Deakins Business Park, Egerton, Bolton BL7 9RP | 01204937133 | |
| Enterprise Solutions (E-Sol) LTD | Suite 13, ELE CENTRE LINK WALK, EASTFIELD, Scarborough YO11 3LR | 01723364444 | |
| Enterprise Systems UK Ltd | 2 East Mathers, St Cyrus, MONTROSE DD10 0DW | 07920746493 | |
| Enterprise Telecoms Ltd | Office 69, Holland Park, Cyttir Road, Holyhead LL65 2PU | 01407760909 | |
| Entigy Ltd | Imperial Chamber, Prince Albert Street, Crewe, Cheshire CW1 2DX | 01270 212199 | |
| Entire IT Solutions Ltd | 85, Slateford Road, Edinburgh EH11 1QR | 01314666886 | |
| Entropia Digital Ltd | 8 Northumberland Avenue, London WC2N 5BY | 02036332333 | |
| Entropie Ltd | 18 Walker Avenue, Wolverton Mill East, Milton Keynes MK12 5TW | 0845 3305539 | |
| Entrust IT Ltd | Unit 1, The Doughty Building, Crow Arch Lane, Ringwood BH24 1NZ | 0330 0020045 | |
| Envera Telecom | https://www.envera.co.uk/ | ||
| Enviz Ltd | Unit 1-3 Mebourne Farm, Liddington, Swindon SN4 0EY | 0800 0822 420 | |
| Envizage I.T. Ltd | Redmond House, 28 Yarm Road, Stockton, Stockton-on-Tees TS183NG | 08445763091 | |
| Eossystems Ltd | 100 Ladas drive, Belfast BT6 9FH | ||
| E-Partner Telecom Ltd | Marathon House, Olympic Business Park, Drybridge Road, Dundonald,Kilmarnock KA2 9AE | 01563 852230 | |
| Epic Integration Ltd | 8th Floor, 6 Mitre Passage, Greenwich Peninsula, London SE10 0ER | 02031501685 | |
| e-plenish Ltd | Unit 12, Barnes Wallis Road, Segensworth, Hampshire PO15 5TT | 0845 505 5544 | |
| Epoq IT Ltd | Unit 9 Anglo Office Park, Lincoln Road, Cressex Business Park, High Wycombe HP12 3RH | 01494 444065 | |
| Epsilon Telecommunications Ltd | Telephone House, 69-77 Paul Street, London EC2A 4NW | 020 7096 9600 | https://www.epsilontel.com/ |
| EQ Systems (t/a E-centriQ Ltd) | 8 Leopold Road, London NW10 9LP | 020 8453 0700 | |
| EQPI Software Ltd | Ingleside House, The Drive, IFOLD RH14 0TB | 07976246287 | |
| Equasys IT Solutions Ltd | 850 Birchwood Boulevard, Birchwood, Warrington WA3 7QZ | 01925357957 | |
| Equate Business Solutions Ltd | Cardiff House, Cardiff Road, Barry, Vale of Glamorgan CF63 2AW | 0845 085 0053 | |
| Equate Group Plc | 3 Watermill Way, Weston Turville, Bucks HP22 5SR | 01296 612 427 | |
| Equations Technology Ltd | PO Box 125, Bridgeland St, Bideford EX39 2WZ | 01237420010 | |
| Equiinet Technologies Ltd | Edison House, Edison Road, Dorcan, Swindon SN3 5JX | 01793 603700 | https://www.switchconnect.co.uk/ |
| Equip-IP Ltd | Albany House, 14 Shute End, Wokingham, Berkshire RG40 1BJ | 0118 3231674 | |
| Equipment Distribution Ltd | 24 Picton House, Hussar Court, Waterlooville, Hampshire P07 7SQ | 0800 612 5972 | |
| Equitalk.co.uk Ltd | 5th Floor, Britannia House, 960 High Road, London N12 9RY | 0800 161 3837 | https://www.equitalk.co.uk/ |
| Equitalk.co.uk Ltd | Innovation Centre, Heyford Park, Upper Heyford, Oxon OX25 5HD | 0800 161 3837 | |
| Equity Networks Ltd | Boundary House, Cricket Field Road, Uxbridge, Middlesex UB8 1QG | 01753 668 668 | https://equitynetworks.co.uk/ |
| j2 Global Ireland Ltd | Unit 3, Woodford Business Park, Santry, Dublin 17, Ireland | 020 3070 1000 | https://www.ereceptionist.co.uk/ |
| eRIGHT Ltd | Red Lane, Blyth Road, Worksop S81 8BP | 01909 541155 | |
| Erud IT Ltd | Trinity House, Wharf Farm, Coventry Road, Hinckley LE10 0NF | 01455 611557 | |
| ESAT Telecommunications Ltd | c/o Norton Rose, Kemson House,PO Box 570 Camomile Street, London EC3A 7AN | ||
| Esben Business IT Solutions Ltd | ESBEN business IT soloutions, Autumn Park Business Centre, Dysart Road, Grantham NG31 7EU | 01476500150 | |
| Esc IT Ltd | The Boot Shop, High Street, Blagdon, Bristol BS40 7TA | 01275595859 | |
| Esendex Ltd | 20 Wollaton Street, Nottingham NG1 5FW | 0345 356 5758 | https://www.esendex.co.uk/ |
| Eskimo Intelligent Solutions | 62 Queens Road, Aberdeen AB15 4YE | 01224 208820 | |
| ESP Global Services Ltd | 5 Acre Road, Reading RG2 0SU | 01189169300 | |
| Esp Projects Ltd | Unit 7 Edmund Road Business Centre, 135 Edmund Road, Sheffield S24ED | 03302020118 | |
| eSpida Ltd | 111-113 Fort Dunlop, Birmingham B249FD | 03448806140 | |
| Espirit Telecom UK Ltd | Minerva House, Valpy Street, Reading
RG1 1AR |
0118 951 4000 | http://www.esprittele.com |
| Espok IT Solutions LTD | 20-22 Wenlock Road, London N1 7GU | 0800 010 6216 | |
| E-Squire Business Solutions Ltd | 84 Billingham Road, Stockton on Tees TS20 2SA | 01642040616 | |
| Essanet Ltd | 8 Cromwell Business Centre, Howard Way, Newport Pagnell, Milton Keynes MK16 9QS | 01908 888327 | |
| Esscom Communications Ltd | Century House, Westcott Venture Park, Westcott, Bucks HP18 0XB | 08704 232 320 | |
| Essensys Ltd | Centre Point, 103 New Oxford Street, London WC1A 1DD | 020 3102 5252 | https://www.essensys.co.uk/ |
| Essential Security (UK) Ltd | 151 Sheen Lane, London SW14 8LR | 0844 484 2572 | |
| Essex Business Machines Ltd | 166 EnterpriseCourt, Eastways Industrial Estate, Witham CM8 3YS | 01376 521575 | |
| Essex WiFi | http://www.essexwifi.co.uk/ | ||
| ETC Telecom Ltd | 16 Shearway Business Park, Folkstone, Kent CT19 4RH | 0872 048 4848 | https://www.etctelecom.co.uk/ |
| E-Tel Communications Ltd | Suite 14 Hattersley House, 1 Hattersley Court, Burscough Road, Ormskirk L39 2AY | 01695 575 217 | |
| E-Telegence.com Ltd | 166 Grahams Road, Falkirk FK2 7BY | 01324 808 741 | |
| Ethcom Ltd | |||
| Etherlive Ltd | Custom House, Templar?s Way Industrial Estate, Royal Wootton Bassett, Wiltshire SN4 7SR | 07590680191 | |
| Ethertek LTD | 8 Crown Wood Court, Bamfurlong, Wigan WN25LY | 01618831514 | |
| Ethos IT Solutions And Services Ltd | 3/2 46, Mavisbank Gardens, Glasgow, Glasgow G51 1HL | 0141 343 8373 | |
| Ethos Voice and Data Ltd | 72 Leadenhall Market, London EC3V 1LT | 020 7253 4882 | |
| ETS Communications Ltd | Stonebridge House, Wakefield Road, Horbury, Wakefield, West Yorkshire WF4 5HQ | 01924 237000 | |
| Ets Networks Ltd | 12 Station Court, Station Approach, Wickford SS11 7AT | 01206656001 | |
| Ettl Ltd | Unit 3c Bridgeview Estate, 799 London Road, Grays, Essex RM20 3LH | 07403555434 | |
| EUNA Ltd | The Enterprise Hub, Edinburgh Way, Harlow, Essex CM20 2NQ | 0843 216 8910 | |
| Euro Business Solutions Ltd | Euro House, Satellite Park, Macmerry, East Lothian EH33 1RW | 0800 328 1372 | |
| Euro Systems (Scotland) Ltd | 7000 Academy Park, Gower Street, Glasgow G51 1PR | 08445675029 | |
| Eurocoms (UK) Ltd | Unit D11, Alison Business Centre, Sheffield S2 1AS | 01142835825 | |
| Eurodexx Ltd | 86-90 Paul Street, London EC2A 4NE | 02031501808 | |
| Eurolink Connect Ltd | 21 High Street, Stonehouse, Gloucestershire GL10 2NJ | 01453 700 800 | https://www.eurolinkconnect.com/ |
| Eurolink Telecom Ltd | Swan House Bonds Mill Estate Stonehouse Glos GL10 3RF | 08450 755 500 | https://www.eurolinktelecom.com/ |
| Europacom.net Ltd | The Rectory, Stoneham Park, Eastleigh S050 9NW | 023080 646 305 | http://www.europacom.net/ |
| European Communications - | Communications House, 17 Chesham Avenue, Flixton, Manchester M41 8SS | 01617420063 | |
| European Computer Units Ltd | Units B&C Station Road Estate, Newcastle Emlyn, Carmarthenshire SA38 9BY | 01239 710 823 | |
| European Strategic Advisory Services Ltd | 21 Hurst Park, Midhurst GU29 0BP | 0203 603 4635 | |
| European Telecom Solutions | PO Box 104, Neath SA11 2WZ | 01639 814 800 | |
| Eurosoft Tech Ltd | S3 Rays House, North Circular Road, London NW10 7XP | 02082081502 | |
| Eurotech Services (UK) Ltd | 5 Marchmont Gate, Boundary Way, Hemel Hempstead HP2 7BF | 01442 217099 | |
| Eurotel Communications Ltd | HB House, Foleshill Enterprise Park, Courtaulds Way, Coventry CV6 5NX | 0870 750 9999 | |
| Eurowide Telecoms | |||
| Evacom Line Solutions | 6 Highfield Close, Pentrepiod Road, Pontnewynydd, Pontypool NP4 6RP | 07809576043 | |
| Evak Technologies Ltd | Lime Tree House, 15 Lime Tree Walk, Sevenoaks, Kent TN13 1YH | 0560 385 2686 | |
| Eventura Ltd | St Georges House, 23-27 Bolton Road, Westhoughton, Bolton BL5 3DG | 03332409945 | |
| Evercom Technology | 5 Knuway house, Cranborn Road, potters bar EN63JN | 01707620245 | |
| Everon Ltd | The Lodge, 87 Harrogate Road, Chapel Allerton, Leeds LS7 3QQ | 0113 225 7193 | |
| Everycomm Ltd | Suite 216, Lombard House, 12/17 Upper Bridge Street, Canterbury, Kent CT1 2NF | 01795 342 424 | |
| Everyday Communications Ltd | 330 High Holborn, London WC1V 7QT | 08009202555 | |
| Everything Comms Ltd | 65 Gibfield Park Avenue, Atherton M46 0SY | 03301224250 | |
| Everything Everywhere Ltd | Hatfield Business Park, Hatfield, Herts AL10 9BW | 0845 412 5000 | https://ee.co.uk/ |
| Everything Tc Telecom Ltd | 4, Islay Close, Arnold, Nottingham NG5 8FL | 01158708000 | |
| Everything Telecoms Ltd | 4 Tesla Court, Lynchwood, Peterborough PE2 6FL | 01733 590 401 | |
| Everything Voice Ltd | 17 Howley Park Business Village, Morley, Leeds LS27 0BZ | 0330 055 3570 | |
| Everything Voip Ltd | 8 Shaw Heath View, Knutsford, Cheshire WA16 8HP | ||
| Evolve BG Ltd | 704 Merlin Park, Burscough, Lancashire L40 8JY | 0845 612 0442 | |
| e-volve solutions LTD | 83 Friar Gate, Derby DE1 1FL | 08452 870685 | |
| Evolve Telecom Ltd | Evolution House, New Garrison Road, Shoeburyness, Essex SS3 9BF | 01702 411 512 | |
| Evolving Networks Ltd | Datum House, 3 Commerce Road, Lynch Wood, Peterborough PE2 6LR | 0845 652 2212 | |
| Evorio Ltd | 3-4 Crumplins Business Court, Odiham RG29 1DU | 01256 704518 | |
| EvoSoft | Windrush Millennium Centre, 70 Alexandra Road, Manchester M16 7WD | 01618508008 | |
| Evrocom.UK Ltd | 277 Anlaby Road, Hull HU3 2SE | 01482273030 | |
| EW Communications Ltd | Linton House, Highgate Road, London NW5 1RS | 020 7428 7733 | http://www.ewcoms.com/ |
| Exa Networks Ltd | 100 Bolton Road, Bradford BD1 4DE | 0345 145 1234 | https://www.exa.net.uk/ |
| Exabytes Ip Ltd | 140 Landseer Avenue, Bristol BS7 9YR | 07393870937 | |
| Exactive | Exactive House, Pitreavie Court KY11 8UU | 0844 561 1577 | |
| Example IT Ltd | Floor 8, Network House, Basingstoke RG21 4HG | 03303309174 | |
| Exascale Ltd | Hilton Hall, Hilton Lane, Wolverhampton WV11 2BQ | 0330 010 0140 | |
| Excalibur Communications | http://www.ex-c.co.uk/ | ||
| Excalibur IT | Dauntsey House, Westlea, Swindon SN5 7HB | 01793 438 881 | |
| Excel Business Communications Ltd | Whitfield Business Centre, 188-200 Pensby Road, Heswall, Wirral CH60 7RJ | 0333 358 3331 | |
| Excel Office Communications LTD | 66-69 Pegholme Mill, Wharfebank Business Centre, Otley LS213JP | 01943858404 | |
| Excel Telecom Ltd | First Floor, Braemar House, 127 Main Street, Garforth, Leeds LS25 1AF | 0113 286 3299 | https://www.exceltelecom.co.uk/ |
| Excel Telecommunications Network Ltd | Greenlands Business Centre, Studley Road, Redditch B98 0NZ | 01527 527 747 | |
| Excell Business Systems Ltd | 4-6 Langford Arch, London Road Industrial Estate, Sawston, Cambridgeshire CB22 3FX | 01223 505050 | |
| Excell Group | 9 Lower John Street, London W1F 9DZ | 020 7292 8600 | https://www.excellgroup.com/ |
| Excell Network Solutions Ltd | https://www.excellgroup.com/ | ||
| Excellence IT (UK) Ltd | Unit 8 Swanbridge Court, Bedwas House Industrial Estate, Bedwas, Caerphilly CF83 8DW | 02920887362 | |
| Exchange Communications Ltd | Exchange House, Kerr Street, Kirkintilloch, Glasgow G66 1LF | 0141 776 5851 | https://www.exchangecommunications.co.uk/ |
| Exchange Communications Network Services Ltd | Prime House, 14 Porters Wood, St Albans, Herts AL3 6PQ | 01727 858 449 | |
| Exclusive Lifestyle Ltd | 8 white meadow close, shrewsbury, shropshire SY1 3SU | 07826516248 | |
| Exec-IT | 264 Ravenswood Avenue, Ipswich IP3 9TQ | 01473 550793 | |
| Exeid Ltd | St Nicholas Court, 27 Castle Gate, NOTTINGHAM NG1 7AR | 0115 8241444 | |
| Exeltel Ltd | Hyde Park House, Cartwright Street, Hyde SK14 4EH | 01614140180 | |
| Exemplar Technologies Ltd | Forum 3, Solent Business Park, Fareham PO15 7FH | 03300539506 | |
| Exigo Technologies Ltd | Unit 1a Sandown Road Industrial Estate, Sandown Road, Watford WD24 7UB | 02030962220 | |
| Eximus Solutions Ltd | 53 Ullswater Crescent, Coulsdon, Surrey CR5 2HR | 0844 887 1100 | http://www.eximussolutions.com/ |
| Exmos Ltd | Epoch House, Falkirk Road, Grangemouth, Stirlingshire FK3 8WW | 01324 486 844 | |
| Exonet Systems Ltd | 17 Dainton Business Park, Newton Abbot TQ12 6RG | 07919237173 | |
| EXOS IT Ltd | International House, 12 Constance Street, London E16 2DQ | 01603 334000 | |
| Expanse (UK) Communications Ltd | The Old Rectory, Church Road, Sevington, Ashford, Kent TN24 0LD | 0870 242 1718 | |
| Expat Email Ltd | Cross Keys House, Queen Street, Salisbury SP1 1EY | 01722 777 999 | |
| Expedite Solutions Ltd | 3rd Floor, 72 Shaftesbury House, Culver St East, Colchester CO1 1LF | 02032876320 | |
| Expedite Total Office Solutions Ltd | 9 Lynx Crescent, Weston Super Mare BS24 9DJ | 01934 422 222 | |
| Expert Systems Ltd | The Meeting Rooms, Boothroyd Lane, Dewsbury WF13 2LP | 01924488612 | |
| Expert Tech IT Ltd | Cardiff House, Cardiff Road, Barry CF63 2AW | 01446327329 | |
| Expert Telecom Ltd | 40 Regent Street, Strood ME2 4WQ | 07949550761 | |
| Exponential-e Ltd | 100 Leman Street, London E1 8EU | 020 7096 4100 | https://www.exponential-e.com/ |
| Express Telephony Ltd | 9 Perowne Way, Puckeridge, Ware SG11 1SZ | 0800 052 2323 | |
| Exstream Networks Ltd | The Studio, 377-399 London road, Camberley, Surrey GU15 3HL | 01420 562929 | |
| Extech Ltd | Delta House, Bridge Road, Haywards Heath, West Sussex RH16 1UA | 01444 443200 | |
| Extera Ltd | 10 Manor Park, Banbury OX16 3TB | 0800 10 77 655 | |
| External Reality Ltd | Unit C, 24 Longman Drive, Inverness IV1 1SU | 03330438676 | |
| Extraordinary Managed Services Ltd | 6 The Clocktower Estate, Flassches Yard, Edinburgh EH12 9LB | 08707437408 | |
| ExtraScope Ltd | Unit 19 Woodlands Workshops, Pontyclun CF72 9DW | 01443 606111 | |
| Eze Talk Ltd | Kingsley House, Eaton street, Crewe, Cheshire CW2 7EG | 0845 017 9878 | |
| Ezecoms Ltd | 35, Hillcrest, Drive, Ashington RH20 3LB | 02392983444 | |
| Ezee Business Solutions Ltd | The Old Barn, Pury Hill Business Park, Nr Alderton, Towcester NN12 7LS | 01327 810062 | |
| eZe-Talk Ltd | Kingsley House, Eaton Street, Crewe CW2 7EG | 0845 017 9878 | https://www.eze-talk.com/ |
| Ezis Ltd | 31a Clerkenwell Close, London EC1R 0AT | 03332020444 | |
| EZPC Ltd | 2 Cross Way, Petts Wood, Kent BR5 1PF | 07828252201 | |
| E-Zu Solutions Ltd | Matrix House, Mill Green, Congleton CW121JG | 01260715020 | |
| F & W Networks Ltd | Elscot House, Arcadia Avenue, London, London N3 2JU | 07740009277 | |
| F H Brown Office Technologies Ltd | |||
| F One Technologies Ltd | Arena Business Centre, 25 Barnes Wallis Road, Fareham, Hampshire PO15 5TT | 08000 389 345 | https://fonetechnologies.co.uk/ |
| F&M Telecommunications Ltd | 170 Walkwood Road, Redditch B97 5NS | 020 7625 2999 | |
| F.O.I.T Ltd | Unit 501, Millview Barn, Grange Road, Southampton SO31 8GD | 02031376727 | |
| F1 Help Ltd | Kingsley Road, Lincoln Fields, North Hykeham, Lincoln LN6 3TA | 01522 508080 | |
| F1 Internet | http://www.f1it.co.uk/ | ||
| F4RN | https://f4rn.org.uk/ | ||
| F6 Consulting Ltd | 71 Rochelle Way, Northampton NN5 6YJ | 01604592011 | |
| F8 Solutions Ltd | 13 Columbia Road, Bournemouth, Dorset BH10 4DZ | 01202 901 530 | |
| Fab Spider | Ripponden Mill, Mill Fold, Ripponden HX6 4DH | 01422 825712 | https://www.fabspider.com/ |
| FAB-ITRescue Ltd | Heath House, 19a Heath Ridge, Long Ashton BS41 9EW | 01179 118094 | |
| Fabric Technologies | 222 Grays Inn Road, London WC1X 8HB | 020 7841 6700 | |
| Face To Face Digital | The Old Gasworks, 2 Michael Road, London SW6 2AD | 020 7384 9121 | |
| Faces UK Ltd | 16 Bulwark Avenue, Bulwark, Chepstow NP16 5QG | 01291 620 189 | |
| Factco Ltd | Unit 6, Century Building, Brunswick Business Park, Liverpool L3 4BJ | 03333057560 | |
| Factotum Ltd | 8 Swan Lane Business Park, Newmarket, Suffolk CB8 7FN | 01638 576 403 | |
| Faelix Ltd | The Yard, 11 Bent Street, Manchester M21 9WR | 01617102800 | |
| Fair Isaac (Adeptra) Ltd | International Square, Starley Way, Birmingham B37 7GN | 020 7940 8718 | https://www.fico.com/ |
| Fair Pricing 4 Business Ltd | 2nd Floor Offices, 71A High Street, Rushden, Northamptonshire NN10 0QE | 01933 201 111 | |
| Fairford Communications Ltd | Millhouse Business Centre, Station Road, Castle Donington, Derbyshire DE74 2NJ | 08454 595 595 | |
| Fairland Consulting Ltd | Abbey House, 25 Clarendon Road, Redhill RH1 1QZ | 01737852198 | |
| Fairlea Online Ltd | Unit 12, Trident Ind Estate, Blackthorne Road, Colnbrook, Slough SL3 0AX | 01753 287882 | |
| Faith Telecommunications Ltd | 54 Norfolk Gardens, Littlehampton BN17 5PF | 07484079484 | |
| Farm Out IT Ltd | 4 Nicola Mews, Hainault, Ilford IG6 2QE | 02031371747 | |
| Farndale Free Range Ltd | Farndale, Kirkbymoorside, York YO62 7LH | 01751 430 323 | |
| Faros Engineering Ltd | Look House, Aldon Road, Poulton Ind Estate, Poulton-le-Fylde FY6 8JL | 01253886665 | |
| Fast Connect Media Ltd | 12 Tatsfield Close, Gillingham ME8 6AU | 01634 505003 | |
| Fast Network Solutions | 20 Great Smith Street, Level 4, samctuary Buildings, London SW1P 3BT | 07081206297 | |
| Fast Systems Consultants Ltd | Hermitage Tower, Hurstwood Road, Uckfield TN22 4BH | 02082971776 | |
| Fast2host Ltd | Silvaco house, Compass Point, St Ives PE27 5JL | 01480260000 | |
| Faster Telecoms Ltd | D96, Central Quay, 33 Alma Street, Sheffield S3 8RZ | 07506698924 | |
| fasthosts | https://www.fasthosts.co.uk/ | ||
| Fasthosts Internet Ltd | Discovery House, 154 Southgate Street, Gloucester GL1 2EX | 0333 0142700 | |
| Fastnet Ltd | Shaftsbury Court, 95 Ditchling Road, Brighton, East Sussex BN1 4ST | 01273 662 888 | https://www.fastnet.co.uk/ |
| Fastnet Ltd | Shaftsbury Court 95 Ditchling Road Brighton East Sussex, BN1 4ST | 01273 662 888 | |
| Fast-Track Telecom Ltd | 232 Buckingham Road, Bicester OX26 4EL | 01869 327991 | |
| Fastvision Ltd | Pillar House, 113/115 Bath Road, Cheltenham GL53 7LS | 08447766999 | |
| Fat Hosting Ltd | 12 Spring Garden Street, Lancaster LA11RQ | ||
| Faultbasic Ltd | |||
| Fax2Mail Ltd | Venture West, New Greenham Park, Newbury, Berks RG16 6HN | 0870 114 1140 | |
| Faxtastic | 23B High Street, Tring, Herts HP23 5AH | 01442 927397 | https://www.faxtastic.co.uk/ |
| FCL Ltd | Unit 1 Western Business Park, Brixham Road, Paignton, Devon TQ4 7BR | 01803 663 338 | |
| FCP Communications | 19-20 Bourne Court, Southend Road, Woodford Green, Essex IG8 8HD | 01279 60 32 91 | |
| FCP Technologies Ltd | 3B Wixford Park, Georges Elm Park, Bidford on Avon B50 4JS | 01789 868190 | |
| FEBO Telecom Ltd | 232 Arch Makariou III Avenue, Limassol 3030, Cyprus | +357 25 030468 | https://www.febotele.com/ |
| Fellcroft Computing | 13 Hallstile Bank, Hexham NE46 3PG | 01434606417 | |
| Feltech Electronics Ltd | Feltech House, 7 Long Spring, St Albans, Hertfordshire AL3 6P | 01727834888 | |
| Fenetre Ltd | Friargate Studios, Derby DE1 1EE | 01332 460640 | |
| Fenix Solutions Ltd | 3A Alexander House, Castlereagh Business Park, Castlereagh Road, Belfast BT5 6BQ | 02890 400 400 | |
| FGL Telecom Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 020 3129 6111 | |
| FGS Services UK Ltd | Suite 1 Morley Carr House, Morley Carr Road, Low Moor, Bradford, West Yorkshire BD12 0RA | 01274 973 600 | |
| FHJ Computer Support Ltd | 6 Queens Lane, Bromfield Industrial Estate, Mold CH7 1JR | 01352836596 | |
| Fi Real Estate Management Ltd | Canal Mill, Botany Bay, Botany Brow, Chorley PR69AF | 01257263010 | |
| Fibernet (UK) Ltd | Olympus House, Calleva Park, Aldermaston, Berks RG7 8SA | 0118 881 9122 | |
| Fibre Broker UK Ltd | Brixham Town Hall, New Road, Brixham TQ5 8TA | 0800 6343260 | |
| Fibre Options | https://www.fibre-options.com/ | ||
| Fibre Telecoms ( UK ) Ltd | 51 Nobes Avenue, Hampshire PO13 0HS | 03339398220 | |
| Fibre1 Ltd | 4 North Guildry Street, Elgin IV30 6RN | 01343811110 | |
| Fibregig Ltd | 6 The Pastures, WELWYN GARDEN CITY AL7 4PX | 07891511239 | |
| Fibreway Ltd | 10 Hillside Crescent, Midsomer Norton BA3 2NB | 01373756816 | |
| FibreWifi | https://www.fibrewifi.com/ | ||
| Fiddle Fingers Ltd | 27 Chingley Bank, Henley in Arden B95 5LX | 07730895360 | |
| Fidelity Group Ltd | Newton House, Newtown Road, Henley on Thames, OXON RG9 1HG | https://www.fidelity-group.co.uk/ | |
| Fidget Ltd | 85-91 West Wycombe Road, High Wycombe HP112LR | 01494448252 | |
| Fido Telecom Ltd | Palladium House, 1-4 Argyll Street, London W1F 7LD | 020 3519 0000 | https://www.fido.net/telecoms/ |
| FidoNet Registration Services Ltd | 10-16 Tiller Road, London E14 8PX | 0845 004 5045 | https://www.fido.net/ |
| Fieldgate Data Services Ltd | Standsure House, Billings Road, Dalton-in-Furness, Cumbria LA13 0PF | 01229 808133 | |
| Fifosys Ltd | Unit 7 Hampstead West, 224 Iverson Road, West Hampstead, London NW6 2HL | 020 7644 2600 | |
| Fifteen Communications Ltd | Park Hall Business Village, Stoke on Trent, Staffordshire ST3 5XA | 01782 337898 | |
| FiftySeven57 Ltd | 25 White Lion Road, Amersham HP79HZ | 07912787175 | |
| File Sanctuary Ltd | Boho One, Bridge Street West, Middlesbrough TS2 1AE | 01642688088 | |
| Finarea SA | Viale Carlo Cattaneo 1, Lugano 6900, Switzerland | +41 91 922 5431 | https://www.finarea.ch/ |
| Fincomp Services Ltd | 103 Woodland Way, Winchmore Hill, London N21 3PY | 020 8099 7301 | |
| Fine Line Telecommunications Management Ltd | Global House, Harfreys Road, Harfreys Ind Estate, Great Yarmouth NR31 0LS | 01493 441114 | |
| Fine Memorials Ltd | 18 St Mary Street, Bridgwater TA6 3LY | 01278456119 | |
| Fineline Communications Ltd | Third, Melrose, Roxburghshire TD6 9DR | 08700 505 015 | |
| Finesse Ict Ltd | Director Generals House, 15 Rockstone Place, Southampton SO15 2EP | 07757631032 | |
| Finn Telecom Ltd | Units 9 & 10 Croft Street, Cheltenham GL53 0ED | 01242584901 | https://www.finntelecom.co.uk/ |
| Firbanks PC Maintenance Ltd | 4 Paxton Close, Hedge End, Southampton, Hampshire SO30 0PB | 01489 858 109 | |
| Fire IT Ltd | Wilton House, 3-5 Cowbridge, Hertford, Hertfordshire SG14 1PG | 01992 660350 | |
| Firefly Enterprises Ltd | Unit 12 Beckford Business Centre, Beckford Street, Hamilton ML3 6NN | 0870 141 7114 | |
| Firefly IT Solutions Ltd | Horizon Scotland, Forres Enterprise Park, Forres, Moray IV36 2AB | 01309 676 151 | |
| Firewave Technology Services Ltd | 354 Omega Court, Cemetery Road, Sheffield S11 8FT | 0203 475 7870 | |
| First 4 It Ltd | The Tower, Fourth Avenue, Hornbeam Park, Harrogate HG2 8QT | 01423 859370 | |
| First Alert Security Training Ltd | 132 Barkerend Road,, Bradford BD3 9BD | 01274710911 | |
| First Base Solutions Ltd | Pebworth Barn, Back Lane, Pebworth, Stratford-upon-Avon CV378XA | 01789721746 | |
| First Choice PCs Ltd | 27F Pennygillam Way, Pennygillam, Launceston, Cornwall PL15 7ED | 01566777627 | |
| First Class Comms Ltd | The Hive, 6 Beaufighter Road, Weston super Mare, North Somerset BS24 8EE | 0845 180 1000 | |
| First Class Comms T/a FCC | https://www.firstclasscomms.co.uk/ | ||
| First Comms Ltd | 10 glenmarsh close, Higher Bebington, wirral CH63 2LB | 01514887494 | |
| First Computer Services Ltd | Crown Yealm House, Pathfields Business Park, South Molton EX36 3LH | 01271 446105 | |
| First Eleven Player Ltd | 25, St. Andrews Street, Hertford SG14 1HZ | 01992949525 | |
| First European Telecom Ltd | Ramsay Court, 111 Ecclesall Road South, Sheffield S11 9PH | 0800 195 9200 | |
| First For Energy Group Ltd | Arrowe Brook rd, Wirral CH490AB | 01513633966 | |
| First Line Support Ltd | Hamilton House, 1B Howard Street, Oxford OX4 3AY | 01865 260 220 | |
| First Media Ltd | 23 Castalia Square, London E14 3NG | 416 847 5240 (ext 5271) | |
| First Office Systems Ltd | 14-16a Albion Road, Royal Tunbridge Wells, Kent TN1 2NH | 01892 676000 | https://www.firstoffice.co.uk/ |
| First Rate Telecom Ltd | 1st Floor Kent House, Romney Place, Maidstone, Kent ME15 6LH | 0844 779 2250 | |
| First Rate Telecom Solutions Ltd | 38 Potter Street, Workshop S80 2AQ | 03332005126 | |
| First Solution Technologies Ltd | County House, St Mary's Street, Worcester WR1 1HB | 01905 729992 | https://www.firstsolution.co.uk/ |
| First4coms Ltd | 10 Hatherley Road, Gloucester GL1 4PN | 01452 314 000 | |
| Firstcom Ltd | 66 Medway, Crowborough TN6 2DN | 01892 578666 | |
| Firstcom Europe UK Ltd | St Edburg’s Hall, Priory Road, Bicester, Oxon OX26 6BL | 0333 023 7000 | https://firstcom.co.uk/ |
| Firstnet Solutions Ltd | Saville Mount, Leeds LS7 3HZ | 08452160001 | |
| Firstsound Ltd | Forge House, 39/41 Cambridge Road, Stanstead, Essex CM2 8BX | ||
| Fitsystems Ltd | B4 Enterprise Point, Melbourne Street, Brighton, East Sussex BN2 3LH | 01273 773 302 | |
| Fitzrovia IT Ltd | 29/30 Fitzroy Square, London W1T 6LQ | 020 7874 8845 | |
| Fivebars Mobile Ltd | 111a Winchester Road, Eastleigh SO53 2GH | 03332402345 | |
| Fivenines UK Ltd | 19 Howley Park Business Village, Morley, Leeds LS27 0BZ | 0113 201 2130 | |
| FJC Systems Ltd | Allied Business Centre, Potter Place, Skelmersdale, Lancashire WN8 9PW | 01695 550907 | |
| Flair 4 IT | 155 Whiteladies Road, Bristol BS8 2RF | 0117 959 5143 | |
| Flamble Ltd | 131 St. Peters Court, High Street, Chalfont St. Peter SL9 9QJ | 02089975000 | |
| Flaming Ltd | Cambrai Court, 1229 Stratford Road, Birmingham, West Midlands B28 9AA | 0121 655 2730 | |
| Flash Comms Ltd | Flash Comms Limited, Kestrel Keep, Dunston Business Village, Dunston ST18 9AB | 08002545094 | |
| Flat Telecom | (dissolved November 2013) | ||
| Fleet Telecom Ltd | Cranford House, 24A Longley Road, Rainham, Kent ME8 7RU | 01634 264751 | |
| Fletchers Business Solutions Ltd | 332 marsh lane, Birmingham B23 6HP | 0121 752 3779 | |
| Fletchtec IT Ltd | 15 Leaze close, Thornbury, Bristol, Bristol BS35 2FH | 07795192081 | |
| Fleur Telecom Ltd | Mitchell House, Southampton Road, Eastleigh, Hants SO50 9XD | 033 3320 4020 | https://fleurtelecom.co.uk/ |
| Flex Information Technology Ltd | Harvard House, Grove Technology Park, Wantage, Oxon OX12 9FF | 0333 101 7300 | |
| Flex Managed Services Ltd | 1 Brassey Road, Old Potts Way, Shrewsbury, Shropshire SY3 7FA | 01743 235 000 | |
| Flexgrid Ltd | One Gloucester Place, Brighton BN1 4AA | 0203 1371877 | |
| Flexible Communication Ltd | 26 Badger Close, Palace Fields, Runcorn WA7 2QW | 07590510016 | |
| Flexible Services Ltd | 9 Nuneaton Road, Fillongley CV7 8EZ | 024 7692 0050 | |
| Flexicomm (UK) Ltd | Unit 2 Corinium Industrial Estate, Raans Road, Amersham HP6 6JQ | 01494 412635 | |
| Flexifi Ltd | 107 Abercorn Street, Paisley, Glasgow PA3 4AT | 07863207875 | |
| FlexOn LTD | 17 Victoria Road East, Thornton Cleveleys FY5 5HT | 0845 263 8239 | |
| FleXtel Ltd | FleXtel House, The Commons, Sandbach,
Cheshire CW11 1EG |
0870 3210 1000 | https://www.flextel.com/ |
| Flex-Telecom Ltd | The Workshop off Princess Street, Sandal, Wakefield, West Yorkshire WF1 5NY | 0845 180 1414 | |
| Flip Connect | https://www.flipconnect.co.uk/ | ||
| Flip Solutions Ltd | The Maltings, Bridge Street, Hitchin, Herts SG5 2DE | 01462 417100 | |
| Flonet Ltd | 291 HITCHIN ROAD, BEDFORDHIRE, LUTON LU2 7SL | 02036170260 | |
| Flonix Ltd | Unit 2,, InverAlmond Way, Perth PH1 3UQ | 0333 101 0000 | |
| Flow Networks Ltd | 40 Dee Lane, Wirral CH480QA | 07739583138 | |
| Flower Telecom Ltd | The Big Peg, 120 Vyse Street, Birmingham B18 6NF | 033 3700 0444 | https://flowertelecom.uk/ |
| FLR Spectron Ltd | Unit 4 Orpington Trade Centre, Murray Road, Orpington, Kent BR5 3SS | 0845 899 9900 | https://flrs.co.uk/ |
| Fluency Communications Ltd | Commsworld House, 37-45 Peffer Place, Edinburgh EH16 4BB | 0845 874 7000 | https://www.commsworld.com/our-network |
| Fluent Communications Ltd | The Estate Yard, New barn, Eridge road, Tunbridge wells, Kent TN3 9JR | 01892532373 | |
| Fluent Voice & Data Solutions | https://www.fluent-group.co.uk/ | ||
| Fluent Voice and Data Solutions Ltd | New Barn, The Estate Yard, Eridge Road, Tunbridge wells TN3 9JR | 01892532373 | |
| Fluent2 Ltd | 42-44 Bishopsgate, London EC2N 4AH | 020 7430 6690 | |
| Fluid (Em) Ltd | Bourn Hall, High Street, Bourn, Cambridge CB23 2TN | 01954700010 | |
| Fluid IT Ltd | Old Poplar Library, 45 Gillender Street, London E14 6RN | 08454740770 | |
| Fluid Network Solutions Ltd | Communications House, Unit 11 Keel Row, The Watermark, Metro Riverside, Gateshead NE11 9SZ | 0845 345 4313 | https://www.fluidns.co.uk/ |
| Fluid Tech Support Ltd | 3 Summerfield Close, Walton Le Dale, Preston PR5 4NP | 01772314676 | |
| Fluidbb Ltd | 65 Garnet Grove, Leeds LS11 5JU | 07754187142 | |
| Fluidity Connect Ltd | 2a, Herne Business Park, Herne Bay CT6 7FE | 01227 206989 | |
| Fluidone Ltd | 5 Hatfield, London SE1 9PG | 0845 868 7848 | https://www.fluidone.com/ |
| Flyford Connect Ltd | Spark House, Rope Walk, Lincoln LN6 7DQ | 01522 300056 | |
| Flying Dragon Ltd | 121 Strathdon Drive, London SW17 0PS | 0845 021 2688 | |
| FMI Ltd | Voice Support, Queens House, 1 Leicester Place, London WC2H 7BP | 020 7758 0848 | |
| Fns Ltd | Unit 4\5 Monaco Works, Station Road, Kings Langley WD4 8LQ | 01923634182 | |
| Focus Group | Europa House, Southwick Square, Southwick, West Sussex BN42 4FJ | 0800 054 6100 | https://www.focus-grp.co.uk/ |
| Focus IT Managed Services Ltd | S6 Adelphi Mill, Bollington SK105JB | 01625221077 | |
| Foehn Ltd | Goodwin House, 5 Union Court, Richmond, Surrey TW9 1AA | 0844 846 2323 | https://www.foehn.co.uk/ |
| Fone World Ltd | 19 Leicester Road, Manchester M7 4AS | 01617922503 | https://www.myfoneworld.com/ |
| Fone WorldWide Ltd | 342 Great Cheetham Street East, Salford M7 4UF | 0330 088 7447 | |
| Foneberry Ltd | 80 Winston Close, Stone, Greenhithe DA9 9DG | 07809441041 | |
| Fonehouse Business Ltd | 421 New Kings Road, London SW6 4RN | 0207 384 3636 | |
| Fonezone Telecommunications Ltd | Grove House, 145 Donegal Pass, Belfast BT7 1DT | 02890960366 | |
| Fonix Mobile Ltd | 23 Heddon Street, London W1B 4BQ | 020 8114 7000 | https://www.fonix.com/ |
| Fonnax Ltd | 2 Chorlton Grove, Stockport SK1 4PT | 08000588228 | |
| Footprint Ltd | 33 Gloucester Road, Hampton TW12 2UQ | 02080508624 | |
| Force 36 Ltd | Unit 2, Saffron Business Centre, Elizabeth Close, Saffron Walden CB10 2NL | 01799523265 | |
| Force9 | https://www.plus.net/ | ||
| Forces Communications Ltd | Bradley Court, Off Maple Road, Castle Donington DE74 2UT | 0845 270 2476 | |
| Fordata LTD | Office L2a, 23 Leafield Industrial Estate, Corsham SN13 9RS | 0800 098 8145 | |
| Forefront IT Ltd | Suite 205, 28A Queensway, Bayswater, London W2 3RX | 0203 1986021 | |
| Foresee Fixed Line Ltd | Sony UK Technology Centre, Pencoed Technology Park, Pencoed, South Wales CF356 5HZ | ||
| Foreseer Technology Ltd | 61A Newington Green, London N16 9PX | 07960 933403 | |
| Foresight Business Solutions Ltd | Hollinwood Business Centre, Albert Street, Failsworth, Manchester OL8 3QL | 08456210076 | |
| Forest Communications Ltd | Stable Block, Warwick House, 116 Palmerston Road, Buckhurst Hill, Essex IG9 5LQ | 0844 844 0691 | https://www.forestcommunications.co.uk/ |
| Forest Rock Systems Ltd | Charnwood Building, Holywell Park, Ashby Road, Loughborough LE11 3AQ | 0330 660 0567 | |
| Forever Systems Ltd | 204 Sutton Park Road, Kidderminster, Worcs DY11 6LE | 0843 515 0011 | https://www.forever-group.co.uk/ |
| Formative IT Services Ltd | Flat 2, Bakers Mews, 2A Underhill Street, Bridgnorth WV16 4BB | 07767334313 | |
| Formidable Integrated Solutions (Formis) Ltd | Formiable Integrated Solutions Ltd, 25 Mary Street, Jewellery Qtr, Birmingham B3 1UD | 07762295711 | |
| Fort House Systems Ltd | 100 East Street, South Molton EX36 3DF | 01769574603 | |
| Forteon Technology Ltd | Security House, Lismirrane Industrial Park, Elstree Road, Elstree WD6 3EE | 02083494488 | |
| Fortitude Wifi Ltd | 51 Lansbury Crescent, Dartford DA1 5DQ | 07999686553 | |
| Forward Space Ltd | The Old Church School, Butts Hill, Frome BA11 1HR | 03333 448850 | |
| Four County Services Ltd | The Thatched Cottage, 14 Ring Street, Stalbridge, Dorset DT10 2LZ | 01963 363 639 | |
| Four Nations Business Services | 5 wakeford rd, Bristol BS16 6UW | 01179198226 | |
| Fourteen IP Communications | https://fourteenip.com/ | ||
| Fourteen Network Services Ltd | Emerald House, Meadowcrodt Way, Leigh, Lancs WN7 3XS | 01942 369 196 | |
| Fox ITC | 47 Tyler Road, Ratby, Leicester LE6 0NQ | 03301241827 | |
| Foxguard Ltd | Unit 9C Charles Industrial Estate, Stowmarket IP14 5AH | 01473 8 58810 | |
| FP Cloud Networks Ltd | Berkshire House 39-51 High Street, Ascot, SL5 7HY | 0333 241 4077 | https://www.fpcloud.net/ |
| Fp Mailing (West End) Ltd | 14-18, Heddon Street, London, London W1B 4DA | 08443181212 | |
| Fractal Telecom Services Ltd | 240 Branston Road, Burton Upon Trent DE14 3BT | 0870 410 8989 | |
| Fram Broadband Ltd | The Technology Centre, Station Road, Framlingham IP13 9EZ | 01728 726507 | |
| FRAME MEDIA GLOBAL Ltd | 72, Chase Side, Suite 2, London N14 5PH | 07478689032 | |
| Franzcom Ltd | 11 Winwell Field, Wadebridge, Cornwall PL27 6UJ | 0808 117 6736 | https://www.franzcom.co.uk/ |
| Free Fax To Email | https://www.freefaxtoemail.net/ | ||
| FreeCall | https://www.freecall.com/ | ||
| Freeclix Ltd | Waterside Building, Old Chapel Way, Broadland Business Park, Norwich NR7 0WG | 01603 703 340 | |
| Freecom Internet Services Ltd | Freecom Internet Services Limited, E4 Hagley Court North, The Waterfront, Level Street, Brierley Hill DY5 1XF | 08444 720022 | |
| Freecomm Services | 64 Fairfield Green, Whitley Bay, Tyne & Wear NE25 9SD | 0191 252 1543 | |
| Freedom Air Conditioning Ltd | Unit 5, St Georges Ind Estate, Goodwood Road, Eastleigh SO50 4NT | 07974319614 | |
| Freedom Communications (U.K.) Ltd | Olds Approach, Tolpits Lane, Watford WD18 9RX | 01923654321 | |
| FreedomCall Ltd | Hampton House, High Street, East Grinstead, West Sussex RH19 3AW | 0800 279 6050 | http://www.freedomcall.co.uk/ |
| Octotech Ltd | 30 Worthing Road, Horsham RH12 1SL | 01403 603103 | |
| Freeola Ltd | 92-102 East Street, Braintree, Essex CM7 3JW | 0333 003 0505 | https://www.freeola.com/ |
| Freerunner Net Ltd | 16 Mortimer Street, London W1T 3JL | 02074360509 | |
| Freestyle Communications | 37 Alexander Gibson Way, Motherwell ML1 3FA | 0870 403 0121 | |
| Freestyle IT Ltd | 2 Murrell Green Business Park, London Road, Hook RG27 9GR | 01256 760922 | |
| Freetime Communications Ltd | |||
| Fresh PCs Consultancy Ltd | 36 Livesey Avenue, Ludlow SY8 1HN | 01584 517234 | |
| Fresh phase Ltd | 200 St Helens Road, Bolton BL3 4EB | 01204 855977 | |
| Fresh Tech Ltd | 54-58 Tanner Street, London SE1 3PH | 02033973123 | |
| FrogBox IT Ltd | Mercury House, Shipstones Business Centre, Nottingham NG7 7FN | 01158220600 | |
| Frogmore Solutions Ltd | Fistral, Heath Road, Brixham TQ5 9BH | 01803 22 00 40 | |
| Frontier Telecom LTD | Office 8, Rake House Farm, Rake Lane, North Tyneside NE29 8EQ | 0800 124 4348 | |
| Frontier Voice and Data Ltd | Longleys, Rye Road, Sandhurst, Cranbrook, Kent TN18 5PG | 0845 301 4100 | |
| Ft Hardware Solutions Ltd | 7 Thurlow Close, Stevenage SG1 4SD | 07973815815 | |
| FT Security Systems Ltd | Unit 9, Westlink, Belbins Industrial Estate, Romsey SO51 7AA | 01794339906 | |
| FTB Communications Ltd | Buntsford Drive, Bromsgrove B60 3DJ | 01527 519820 | |
| FTTC Ltd | 4 Queen Street, Uppingham, LE15 9QR | 01572 858858 | |
| Fuaddeen Ltd | Bay Hall, Miln Road, Birkby, Huddersfield HD1 5EJ | 07548884070 | |
| Fubra | |||
| Fuel Mobile Ltd | 231 High Street, Exeter EX4 3NE | 08000931961 | |
| Fujitsu Services Ltd | 22 Baker Street, London W1U 3BW | 0843 354 9777 | |
| Fulcrum Data Systems Ltd | Building 307, Aviation Park West, Bournemouth Airport, Dorset BH23 6NW | 01202596361 | |
| Fulcrum Technology Ltd | 22 Crane Terrace, Wolverhampton WV6 9LX | 08432897252 | |
| Full Fibre Ltd | 11 Gandy Street, Exeter EX4 3LS | 01392793127 | |
| Fullspeed | Unit 14, Louis Pearlman Centre, Goulton Street, Hull HU3 4DL | 01482778440 | |
| Funview | |||
| Furness Internet Ltd | Trinity Enterprise Centre, Furness Business Park, Barrow in Furness LA14 2PN | 01229 877111 | |
| Fuse 2 Communications Ltd | Croft House, St George’s Square, Bolton BL1 2HB | 033 0088 0333 | https://www.fuse2.net/ |
| Fuse Technologies Ltd | The Old Church, 48 Verulam Rd, St Albans, Hertfordshire AL3 4DH | 02071184551 | |
| Fuse Telecom Ltd | RMT Gosforth Park Avenue, Newcastle Upon Tyne NE12 8EG | 03303 331160 | |
| Fusion Care Solutions Ltd | 12 Fusion Court, Garforth, Leeds, West Yorkshire LS25 2GH | 0113 286 3056 | |
| Fusion Event Production Ltd | Unit 23 Lichfield Business Village, Lichfield WS13 6QG | 01543 225 877 | |
| Fusion IT Management Ltd | Oakley House, 1 Hungerford Road, West Yorkshire HD3 3AL | 0845 122 1240 | |
| Fusion Media Networks Ltd | 33/41 Thamesgate House, Victoria Avenue, Southend on Sea, Essex SS2 6DF | 08707 709101 | |
| Fusion Networks Ltd | imperial works, london NE53ED | 02074288409 | |
| Fusion Systems Ltd | York House, Outgang Lane, York YO195UP | 01904436604 | |
| Fusion Telecom Ltd | Shelton Street, Covent Garden, London WC2H 9JQ, | 0330 660560 | https://www.fusion-telecom.co.uk/ |
| FusionWiFi Ltd | Unit 1 St Stephens Court, Bournemouth BH2 6LA | 01202912202 | |
| Futter Ltd | 76 Cricklade Street, Cirencester GL7 1JN | 01285 700 012 | |
| Future Comms (Fareham) Ltd | Trinity Court 2-4 West Street, Fareham PO160BH | 01329557730 | |
| Future Communication Specialists Ltd | Unit 4 The Mill, Weevil Lane, Gosport PO12 1AX | 02393873344 | |
| Future Reliance Ltd | 119 Richmond Road, Kingston Upon Thames, Surrey KT2 5BX | 0845 450 3880 | |
| Future Technologies | Waterside House, Cliffe Commercial Park, Huddersfield HD1 3JD | 01484 345400 | |
| Future Voice and Data Ltd | 3120 Park Square, Birmingham Business Park, Birmingham B37 7YN | 03300 555 222 | |
| Futuretel Ltd | 145-157 St Johns Street, London EC1V 4PW | 03330040041 | |
| Futuretel Scotland Ltd | Suite 23, Ellismuir House, Ellismuir Way, Tannochside Park, Uddingston G71 5PW | 03330040041 | |
| Fuzion Systems Ltd | Unit 16 Brooke Business Park, Brooke, Norwich NR15 1HJ | 08445891000 | |
| Fxsec Ltd | 20-22 Wenlock Road, London N1 7GU | 074993482863 | |
| Fylde Computer Solutions Ltd | 4 St Georges Avenue, Thornton Cleveleys FY5 3NH | 01253 821 691 | |
| G K M Technical Services Ltd | Denmark St, Darlington DL3 0LP | 01325286348 | |
| G Lawson Agricultural Technologies Ltd | 2 Top Row, Sledmere, Driffield YO25 3XL | 01377258153 | |
| G Network | https://www.g.network/ | ||
| G T Business Solutions Ltd | 6 Swan Close, Whitchurch, Aylesbury HP22 4LF | 01844291656 | |
| G?Force Communications Ltd | Vale House Business Centre, Aston Lane North, Whitehouse Vale, Runcorn WA7 3PA | 01928 715 724 | |
| G2 Support | Unit h, Hove Technology Centre, St Josephs Close, Hove, Sussex BN3 7ES | 0845 307 3443 | |
| G2 Voice Ltd | Alpha Tower, Suffolk Street, Queensway, Birmingham B1 1TT | 0333 666 5000 | |
| G3Comms Ltd | Harling House, 47-51 Great Suffolk Street, London SE1 0BS | 020 7075 1472 | |
| G5 Technologies Ltd | 5 Abercrombie Court, Prospect Road, Westhill, Aberdeenshire AB32 6FE | 01224 443 896 | https://www.g5tech.com/ |
| Gaia Technologies Plc | Woodlands House, Parc Britannia, Parc Menai, Bangor LL574FA | 01248675800 | |
| Gainsborough Communications Ltd | Gainsborough House, Sheering Lower Road, Sawbridgeworth CM21 9FL | 01279 932 101 | |
| Galactech Ltd | 10 High Street, Poole BH15 1BP | 01202973800 | |
| Galaxy Bizsoul Ltd | 7 Bellyard, London WC2A 2JR | 020 3397 8990 | |
| Galaxy Numbers Ltd | IMEX Building, 575-599 Maxted Road, Hemel Hempstead HP2 7DX | 0845 056 7777 | https://www.galaxynumbers.co.uk/ |
| Galaxy Telecoms & Networks Ltd | Oakwwod Court, City Rd, Bradford BD8 8JY | 01274449009 | |
| Galip Systems Ltd | 5a Willowbank Business Park, Willowbank Road, Larne BT40 2SF | 028 28272827 | |
| Game Network BV | Postbus 14717 Amsterdam 1001LE, Netherlands | https://www.gamenetworkbv.com/ | |
| Games And Computers (Uk) Ltd | Inside Unit, East End,, Pannier Market, Market Road, Tavistock PL19 0AL | 01822 616288 | |
| Gamma Business Communications Ltd | 2 Manor Court, Barnes Wallis Road, Segensworth, Fareham, Hants PO15 5TH | 0845 521 5000 | https://www.gamma.co.uk/ |
| Gamma Metronet Ltd | Kings House, Kings Road West, Newbury, Berkshire RG14 5BY | 0808 168 3838 | |
| Gamma Network Solns | Kings House, Kings Road West, Newbury, Berkshire RG14 5BY | 0333 240 3000 | |
| Gamma Telecom Holdings Ltd | Kings House, Kings Road West, Newbury RG14 5BY | 0333 240 3000 | https://www.gamma.co.uk/ |
| Gap Telecom | 12 Ryder Crescent, Southport PR8 3AE | 01704 330 690 | |
| Garc Ltd | Unit 3A, Parkway Trading Estate, Alba Way, Trafford Park, Manchester M32 0TL | 0161 8651925 | |
| Garnell Corporate Communications Ltd | Arundel House, Garnell Business Park, Brownfields, Welwyn Garden City, Herts AL7 1AY | 01707 321100 | |
| Garnell Technologies Ltd | Arundel House, Garnell Business Park, Brownfields, Welwyn Garden City, Herts AL7 1AY | 01707 321 100 | |
| Gary Page | 15 shelley ave, bristol BS21 6HD | 01275875616 | |
| Gatenby Services Ltd | Keward Court, Jocelyn Drive, Wells, Somerset BA5 1DB | 01749 685 151 | |
| Gateway Community Media CIC | C/O Gateway Community Media CIC, 125 - 128 Eastgate Centre, Basildon SS14 1AN | 01268 833978 | |
| Gateway of Technology Ltd | Acorn House, Lindum Business Park, Lincoln LN6 3FE | 0800 122 3051 | |
| Gather Technology Ltd | 3 Lombard Street, London EC3V9AA | 020 3870 4301 | |
| Gb Integrated Systems Ltd | Unit 3, Vivary Mill, Vivary Way, Colne BB8 9NW | 01282451300 | |
| GB Technologies ltd | Galamoor House, Netherdale, Galashiels TD1 3EY | 01896 752 607 | |
| Gbiz IT Ltd | 9 The Wynd, Redcar TS11 7LD | 01642 477200 | |
| GCC Innova LTD | Henley House, Gloucester GL4 3RT | 01452371441 | |
| GCI Network Solutions Ltd | Global House, 2 Crofton Close, Lincoln LN3 4NT | 0844 443 4433 | https://www.gcicom.net/ |
| GCI Telecom Group Ltd | Global House, 2 Crofton Close, Lincoln LN3 4NT | 0844 443 4433 | https://www.gcicom.net/ |
| GCIS (UK) Ltd | Crompton Road, Stevenage SG1 2EE | 01438 347090 | |
| GCM Services Ltd | Unit 40, Greenway Business Centre, Harlow, Essex CM19 5QE | 01889 574476 | |
| GDS Digital Services Ltd | Queen Square House, 18-21 Queen Square, Bristol BS1 4NH | 01179214000 | |
| Gecom Solutions Ltd | 91 Marlpool Lane, Kidderminster DY11 5HP | 01562639963 | |
| GeekCast Media | 20 Marine Close, Leigh on Sea SS9 2RD | +44 20 8144 0029 | |
| Geekee Ltd | Eventus Business Centre, Sunderland Road, Market Deeping PE6 8FD | 01778 243000 | |
| Gekko IT LTD | 46, Quebec, Street, Brighton BN2 9UZ | 01273921939 | |
| GEL Holdings Ltd | Suite 6 4th Floor, Alperton House, Bridgewater Road, wembley Middlesex HA01EH | 020 3137 6201 | |
| Gelada Networks Solutions Ltd | 26 York Street, London W1U 6PZ | 02034752234 | |
| Gelcomm Ltd | 637 Kenton Road, Harrow Middx HA3 9RY | 02031376201 | |
| Gema Tech Uk Ltd | Telford House, Hamilton Close, Houndmills, Basinstoke, Hants RG21 6YT | 0845 3458888 | |
| Gemfish IT Ltd | 838 Eccleshall Road, Sheffield S11 8TD | 0845 225 5646 | |
| GemHadar Software Ltd | 5 Falcon Way, Yately, Hampshire GU46 6NY | 01252 683554 | |
| Gemini TML Ltd | Unit 11,, Harraby Green Business Park, Carlisle, Cumbria CA1 2SQ | 01228 516500 | |
| GEN Telecom Ltd | PO Box 539, Nottingham NG3 1BR | 02080992341 | |
| Gencom Technologies Ltd | Charter House 8-10 Station Road, London E12 5BT | ||
| General Communications UK LTD | 33 Lambourne Crescent, Cardiff CF14 5GF | 02920752628 | |
| General Technology Ltd | 5 Fairchild Place, London EC2A 3EN | 020 7375 0000 | |
| General Telecom (UK) Ltd | P.O. Box 126, St Helens WA11 7FL | 0870 758 5555 | |
| General Telephone & Telegraph | |||
| Generation Telecom | |||
| Genesis Computers UK | 9 Severn Street, Newtown POWYS | 07401648147 | |
| Genesis IT & Telecommunications Ltd | Francis House, Meadowcroft Business Park, Pope Lane, Whitestake PR4 4BA | 0845 050 8950 | |
| Genesis Telecom Ltd | BT9 7GU | 02890 662 500 | https://genesistelecom.co.uk/ |
| GeneSys Developments Ltd | 41 Riviera Drive, Southend-on-Sea, Essex SS1 2QT | 01702 462 385 | |
| Genius Software Solutions Ltd | Cityview, 6 Eagle Street, Glasgow G4 9XA | 0141 280 0275 | |
| Genius Software Solutions Ltd | Cityview, 6 Eagle Street, Glasgow G4 9XA | 0141 280 0275 | |
| Genius Technical Support Services Ltd | 1439 Cumbernauld Road, Glasgow G33 1AN | 0141 2126135 | |
| Genius Technology Solutions Ltd | Rollestone House, 20-22 Bridge Street, Horncastle LN9 5HZ | 03330110512 | |
| Geniyisis | Geniyisis House, Berkeley Close, Ross Court Estate, Ross-on-Wye, Herefordshire HR9 7XL | 01989 566 893 | |
| Genmar (UK) Ltd | Unit 12, The links,, Raynham Road, Bishops Stortford, Hertfordshire CM24 8NJ | 01279 210088 | |
| Gentoo Construction Ltd | Ravensworth House, Gateshead NE110HF | 01914870505 | |
| Gentoo Tolent Ltd | Ravensworth House, Gateshead NE110HF | 01914870505 | |
| Genuine IT Solutions Ltd | 10 Fig Court, Woodmill Road, London E5 9GH | 020 3411 1866 | |
| Genuine Solutions | https://www.genuine-solutions.co.uk/ | ||
| Genxsolutions Ltd | 27 Gloucester Place, London W1U 8HU | 020 8099 5813 | |
| Geoborders | https://www.geoborders.com/ | ||
| Geostream Solutions Ltd | Suite 17 Brunts Business Centre, Samuel Brunts Way, Mansfield NG18 2AH | 01623423615 | |
| GeoTech Solutions | 20-22 Wenlock Road, London N1 7GU | 08447760976 | |
| Geotel Communications Ltd | 8 Sycamore Drive, Bury St Edmunds, Suffolk IP32 7PW | 01284 705 339 | |
| Get A Faster Broadband | 41 Priory Lane, Penwortham, Preston PR1 0AS | 01772743853 | |
| Get Business Solutions Ltd | Building 4 Argosy Court, Scimitar Way, Coventry CV3 4GA | 07769166473 | |
| Get Comms Right Ltd | Britannia House, 11 Glenthorne Road, Hammersmith W6 0LH | 02080902971 | |
| GET Communications | Pendle Innovation Centre, Brook Street, Nelson, Lancashire BB9 9PU | 0845 838 9840 | |
| Get Dotted | https://www.getdotted.com/ | ||
| Get Support IT Services Ltd | Unit B, Oakwood, Oakfield Industrial Estate, Eynsham OX29 4TH | 01865594000 | |
| Getech Ltd | Solutions Centre, Knightsdale Road, Ipswich IP1 4JQ | 01473 240470 | |
| Getfirst Ltd | 6 Beechwood, Bowdon, Altrincham, Cheshire WA14 3DW | 0161 928 8840 | |
| Gfr Tech Ltd | The Ligthbox, Willoughby Road, Bracknell RG12 8FB | 01344 266360 | |
| Ggr Communications Ltd | De Salis House, De Salis Drive, Droitwich WR9 0QE | 01905825900 | |
| Ghekko Ltd | Amtri House, Hulley Road, Macclesfield SK10 2NE | 01625 617138 | |
| GHM Communications Ltd | 5 The Boundary, Wheatley Road, Garsington, Oxford OX44 9EJ | 0845 058 4668 | https://www.ghmcommunications.com/ |
| GHOST | 82, Celsus Grove, Old Town, Swindon SN1 4GT | 07944221084 | |
| Ghost IT Services Ltd | Run Way House, North Weald Airfield, North Weald, Essex CM16 6HR | 01708390371 | |
| Ghs (Uk) Ltd | 707-708 Welton Road, Delta Business Park, Swindon SN5 7XS | 01793 528549 | |
| Giacom World Networks Ltd | 1 Priory Court, Saxon Way, Hessle HU13 9PB | 0333 332 0555 | |
| Giant Computers Ltd | The Old Cobblers, The Green, Elstead GU8 6DD | 08448470251 | |
| Gigabair Ltd | Unit 2, Brook Street, Syston, Leicester LE7 1GD | 01162438948 | |
| Gigabit Networks Ltd | 5 Merryweather Street, Aylesbury HP18 0YB | 01157270315 | |
| Gigaclear (also covered Rutland Telecom) | https://www.gigaclear.com/ | ||
| Gigalink Ltd | International House, Barking Road,, London E13 9PJ | 0333 577 9440 | |
| Gigaquad IT Solutions LTD | 3 Staples Close, clevedon BS21 5BL | 07954801606 | |
| Giotech Ltd | Bryson House, 1st Floor, 131 Church Elm Lane, Dagenham, Essex RM10 9RR | 020 7183 2494 | |
| Giraffe Connected Solutions Ltd | Fusion Hive, North Shore Road, Cleveland TS18 2NB | 01642 939730 | |
| Givemedata Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 07503875568 | |
| GJ Beckett and Associates Ltd | Gj Beckett & Associates Limited, Units 6-7 Saturn House, Calleva Park, Aldermaston, Berkshire RG7 8HA | 0118 9409000 | |
| glantel | https://www.glantel.com/ | ||
| GlemNet | Unit 1/2 Thayers Farm Road, Beckenham, Kent BR3 4LZ | 020 8639 0230 | https://www.glemnet.com/ |
| Glenfield Software Ltd | 7 Eaton Court Road, Colmworth Business Park, St Neots, Cambridgeshire PE19 8ER | 01480 407 700 | |
| Glide Business Ltd | The Venture Centre, Sir William Lyons Road, Coventry CV4 7EZ | 024 7699 7222 | |
| Glide Business Solutions Ltd | Union Building, 51-59 Rose Lane, Norwich, Norfolk NR11BY | 01603616300 | |
| Glide Student and Residential Ltd | Unit 1 Rivermead Court, Kenn Business Park, Windmill Road, Clevedon BS21 6FT | 01275 793 400 | https://glidegroup.co.uk/ |
| Glide Utilities Ltd | Alpha Tower, Suffolk Street, Queensway, Birmingham B1 1TT | 08006 348 631 | https://www.glide.uk.com/ |
| Global 4 Communications Ltd | Global House, Rusper Road, Horsham RH12 4QR | 01403 272 910 | |
| Global Biz Solutions Ltd | 30 craig road, london TW10 7JT | 02037239009 | |
| Global Cable Installations LTD | 16 Othello Drive, Salford M30 0QX | 07840873183 | |
| Global Connect Uc Ltd | 30 Armstrong Quay, Liverpool L3 4EF | 07711 917694 | |
| Global Crossing (UK) Telecommunications Ltd | 5th Floor, 9 St. Clare Street, London EC3N 1LQ | ||
| Global Electroteks Ltd | 37 High Street, London W3 6ND | 07747 867885 | |
| Global Gossip LTD | 62 Britton Street, London EC1M 5UY | 0203 215 0600 | |
| Global Networks International | 16 Commercial Way, Abbey Road, London NW10 7XF | 0845 2418000 | |
| Global Nomi Telecomunicacoes E Servicos LDA | Global Nomi, c/o 4th Floor, The Tower Building, 11 York Road, London SE1 7NX | 020 7620 0700 | |
| Global Phones Ltd | 18 Victoria Square, Droitwich WR9 8DS | 01905774545 | |
| Global Reach Networks Ltd | 6/F Exchequer Court, 33 St. Mary Axe, London EC3A 8AA | 020 7173 1700 | https://www.pccwglobal.com/ |
| Global Telecom Ltd | PO Box 2059, Watford, Herts WD17 1XR | 08700 55 56 57 | |
| Global Telecom Group Ltd | 140 Bushey Mill Lane, Watford WD24 7PB | 033 0440 1000 | https://global-telecom.co.uk/ |
| Global Telecommunications Ltd | Palamos House, 67 High Street, Lymington SO41 9AL | 0800 953 4050 | http://www.gt.uk.com/ |
| Global Telecoms Ltd | Unit 11 Mallusk Enterprise Park, 2 Mallusk Drive, Newtownabbey, Co. Antrim BT36 4GN | ||
| Globalcharge | |||
| Globalgig Ltd | 1 Quality Court, Chancery Lane, London, London WC2A 1HR | 03333010103 | |
| Globalnet IT Innovations Ltd | 1 Cedar House, Chandlers Way, Southend on Sea SS2 5SE | 02030059650 | |
| Globe2 Ltd | 33 York Rd, Leicester LE15TT | 03333 446441 | |
| Globecom International | 5904 18th Ave, Brooklyn, NY 11204, USA | (212) 380-1828 | https://www.globecoms.com/ |
| Globetouch | https://www.globetouch.com/ | ||
| GLOCOM Ltd | 1 Abbey Street, Eynsham OX29 4TB | 01865880000 | |
| G-Logic Ltd | 105 Church Road, London SE19 2PR | 02086595931 | |
| Glo-Networks Ltd | 6 Old Meadow Hill, Bridgend CF31 5EW | 03302230033 | |
| Gloucester Telecom Ltd | Kemp House, 160 City Road, London EC1V 2NX | 01452348640 | |
| Glow Networks Ltd | Unit 2, Palace Court,, 250 Finchley Road, London NW3 6DN | 02036757160 | |
| GML Networking Technologies | Mumford Buildings, 27-29 Thorpe Road, Kirby Cross, Essex CO13 0LT | 01255 851 999 | |
| GO Telecom Ltd | Towerpoint, 44 North Road, Brighton BN1 1YR | 03332220888 | |
| Go Unlimited Ltd | 4 ST MARYS PLACE, KILGETTY SA68 0UH | 08005244163 | |
| go2 Convergence Ltd | Taylor Business Park, 1 Cedar Court, risley, Warrington WA3 6BT | 01925 768250 | |
| Go4 Communications Ltd | Building 5, Dane Road, Sale, Manchester M33 7BZ | 01614462772 | |
| Go4Customer - Cyfuture UK Pvt Ltd | 44 West Exe South, Tiverton, Devon EX16 5DH | 0800 279 6225 | https://www.go4customer.co.uk/ |
| Go52 LTD | 123 Clapton Common, London E5 9AB | 02035191818 | |
| Gocloud Ltd | 1-5 St Georges Road, Hull HU3 6ED | 01482 751133 | |
| Gold Telecom Ltd | Unit 1 St John's Mews, 13 St John's Road, Hampton Wick, Kingston Upon Thames KT1 4AN | 020 8614 4860 | https://www.goldtelecom.co.uk/ |
| Golden Technology | 115 Innovation Forum, Frederick Road, Salford, Manchester M6 6FP | 01612800085 | |
| Goldfield Computing Lrd | Unit 8 Griffin House, 24 Station Road, Morley, Leeds LS27 8JW | 0845 900 7801 | |
| Goldmicro Ltd | 2 Broad Street, Wells, Somerset BA5 2DN | 01749 678 997 | |
| Goliath Technical Solutions Ltd | Lodge Farm, Little Staughton MK44 2TA | 07766 777999 | |
| Gomango Ltd | 14 Hazelwood, Lower Warberry Road, Torquay TQ11TU | 01803 368304 | |
| Gopal Consulting Ltd | 26 York Street, London W1U 6PZ | 0330 050 7575 | |
| Gordon Kirk Ltd | 1 Orchard Gardens, Floyds Lane, Ledbury, Herefordshire HR8 1LR | 01531 636 281 | |
| Goscomb Technologies | http://www.goscomb.net/ | ||
| Gould Electronics Two Way Radio Ltd | 7 Scorrier House Workshops, Scorrier, Redruth, Cornwall TR16 5AU | 01209 821804 | https://www.gouldelectronics.co.uk/ |
| Gower Business Systems Ltd | 2 New Mill Court, Enterprise Park, Swansea SA7 9FG | 01792762646 | |
| Gower Coast IT Solutions Ltd | 29 Waterloo Place, Brynmill, Swansea SA20DE | 01792687120 | |
| GP Network Solutions Ltd | 56a Albury Road, Merstham, Surrey RH1 3LS | 01737 646 770 | |
| GPD Communications Ltd | Unit 3 Landscape Close, Weston-on-the-Green, Bicester, Oxon OX25 3SX | 01869 342142 | https://www.connect2tele.com/ |
| GPS Telecoms Ltd | Suite 9 Stowmarket Business Centre, Ernest Nunn Road, Stowmarket, Suffolk IP14 2ED | 0870 730 7000 | |
| Grace Solutions Ltd | 5 Iceni Way, Cambridge CB4 2NZ | 01223 909802 | |
| Grade Computer Solutions Ltd | 12 Mallard Way, Pride Park, Derby DE24 8GX | 01332369087 | |
| Gradwell Communications Ltd | Westpoint, James St West, Bath BA1 2DA | 01225 800800 | https://www.gradwell.com/ |
| Gradwell Communications Ltd | First Floor, Westpoint, James Street West, Bath BA1 2DA | 01225 800800 | https://www.gradwell.com/ |
| GRAFX DIGITAL TECHNOLOGIES Ltd | Unit 3, Montpellier House, Montpellier Drive, Cheltenham GL50 1TY | 01242 787878 | |
| Granero Data Systems | The Threshing Barn, Elberton, BRISTOL BS35 4AG | 01454 416769 | |
| Grant McGregor Ltd | The Merchants Hall, 22 Hanover Street, Edinburgh EH2 2EP | 01316037910 | |
| Grantbrook services | 83 ducie street, manchester M1 2JQ | 08454747883 | |
| Grapevine Connect Ltd | Unit 2 Office A, Greendale Business Park, Woodbury Salterton, Exeter EX5 1EW | 01392345678 | https://www.grapevineconnect.co.uk/ |
| Grapevine IT Ltd | The Old Workhouse, Higher Union Road, Kingsbridge TQ7 1EQ | 01548898183 | |
| Grapevine Telecom (Bath) Ltd | 19-25 Nuffield Road, Poole BH17 0RU | 0845 123 6677 | |
| Graphtek Networks Ltd | 71-75 Shelton Street, London WC2H9JQ | 01252279499 | |
| Gravitas ICT Ltd | 8 Locke King Close, Weybridge KT13 0TA | 0333 320 3425 | |
| Greatit Co Ltd | Riverside Innovation Centre, Castle Drive, Chester CH1 1DS | 03301310966 | |
| GreatValue Telecom | 6 Harbour Court, 6 Cliff Street, Bridlington YO15 2NH | 0330 3500 690 | |
| Greaves Solutions Ltd | Laddenbrook, Bagstone Road, Bagstone, Wotton under Edge GL12 8BD | 01454809010 | |
| Greaves West & Ayre Ltd | 1-3 Sandgate, Berwick Upon Tweed, Northumberland TD15 1EW | 01289 306688 | |
| Green Cloud IT Ltd | Lower Whittle Farm, Heywood OL10 2QE | 01612505000 | |
| Green Duck Ltd | Technology House, Western Way, Bury St Edmunds, Suffolk IP33 3SP | 01284 700015 | |
| Green Fields Technology | 93-99 Upper Richmond Road, London SW15 2TG | 0845 200 7800 | |
| Green ISP | Unit 7 Victoria Works, Victoria Road, Hebden Bridge, West Yorkshire HX7 8LN | 0845 058 0659 | https://www.greenisp.net/ |
| Green Lane Solutions Ltd | 1 Lyric Square, London W6 0NB | 020 3008 6049 | |
| Green Mobile | https://www.greenmobile.co.uk/ | ||
| Green Net Ltd | 56-64 Leonard Street, London EC2A 4LT | 020 7065 0935 | |
| Green Ocean Technology (Uk) Ltd | 27 Old Gloucester Street, London, London WC1N 3AX | 02045091446 | |
| Green Tel Ltd | CEME, Launchpad centre, Marh Way, Rainham, London RM13 8EU | 020 3150 2586 | |
| Green Telecom Ltd | Seven, The Power House, Higham Mead, Chesham HP5 2AH | 0149 477 5500 | https://greentelecom.co.uk/ |
| Green To Talk Ltd | 14 Church Street, Braunton, North Devon EX33 2EL | 07599 991 515 | |
| Green WebHost | https://www.greenwebhost.net/ | ||
| Greenbeam Orion Ltd | Orion House, Heath Lane, Tiverton EX16 8LU | 01884 221122 | |
| Greenfrog Computing Ltd | The Coach House at the Old Rectory, Swathwick Lane, Wingerworth, Chesterfield S426QW | 01246520000 | |
| Greenlight Innovation Ltd | Unit A Tayside Software Centre, Prospect Business Centre, Dundee DD2 1TY | 01382843843 | |
| Greenpoint Computer Services Ltd | 109 Cove Road, Farnborough, Hants GU14 0HF | 01252 544 788 | |
| Greenses Farm Ltd | Greenses Farm, Angram, Muker, Richmond DL11 6DY | 01748886269 | |
| Greenstream IT Services Ltd | 13 Quad Road, East Lane Ind Estate, East Lane, Wembley HA9 7NE | 03302231760 | |
| Greg Brown and Lucy Blake | 97a Sprowston Road, Norwich NR3 4QJ | 01603451810 | |
| Gregory Micallef Associates Ltd | 8th Floor, Yeoman House, 63 Croydon Road, London SE20 7TS | 020 8778 7759 | |
| Group 3 Technology Ltd | Hogan House, 20 High Street, Aldridge, West Midlands WS9 8LZ | 01922 453394 | https://www.group3technology.net/ |
| Grove Business Solutions Ltd | Wyrehurst, George Lane, Wyre Piddle, Pershore WR10 2HX | 01905 700710 | |
| Grove Information Systems Ltd | 32 Portland Terrace, Newcastle Upon Tyne NE2 1QP | 07870212533 | |
| GTEQ Solutions Ltd | Eden Point, Three Acres Lane, Cheadle Hulme, Cheshire SK8 6RL | 0844 811 0844 | |
| GTI Computers Ltd | 219 Victory Business Centre, Somers Road North, Portsmouth, Hampshire PO1 1PJ | 0845 543 8077 | |
| GTMobile | https://www.lycamobile.co.uk/ | ||
| GTPC Ltd | 10 Dodmoor Grange, Telford TF3 2AW | 03331017100 | |
| Gtt-Emea Ltd | 6 St Andrew Street, LONDON EC4A 3AE | 00 44 20 7489 7200 | |
| Gtt-Emea Ltd | 6 St Andrew Street, LONDON EC4A 3AE | 00 44 20 7489 7200 | |
| Guaranteed Telecom Ltd | 2 Bridge Avenue, Berkshire SL6 1RR | 0203 039 3910 | |
| Guernsey Airtel | |||
| Guerrilla Telecom Ltd | Flat 1 Lindon Court, Grayshott Road, Southsea, Portsmouth PO48BP | 02081257950 | |
| Guru Technology Ltd | Penthouse Kg House, H6l, Kingsfield Close, Dallington, Northampton NN5 7QS | 03334440448 | |
| GVX Telecom Ltd | Business Cube,, 2 - 7 Clerkenwell Green, London EC1R 0DE | 02071833603 | |
| Gyrocom Ltd | 8 Station Road, Chertsey KT16 8BE | 08456123994 | |
| Gzilch Ltd | 31 Museum Street, London WC1A 1LG | 020 7692 2650 | |
| Hackfive Broadband | 27 Windermere Avenue, Billingham TS231JL | 07494774826 | |
| Halcyon Networks Ltd | 8c-10 Kirkstone Road North, Liverpool L21 7NS | 01516784545 | |
| Hale Communications Europe Ltd | 23 Ashley Road, Altrincham WA14 2DP | 01619291580 | |
| Halifax Computers Ltd | 55 Pellon Lane, Halifax, West Yorkshire HX1 5SP | 01422 257 777 | |
| Hallamhills Ltd | 1 ST MARYS HOUSE, SHEFFIELD S2 4LA | 0114 327 8853 | |
| Hallsy Ventures Ltd | 3 Tazetta House, 40 Victory Parade, London E20 1GG | 05603844577 | |
| Halo Communications Ltd | Unit5 Block5, Moorfield Industrial Estate, Kilmarnock, Ayrshire KA2 0DP | 01563 558 844 | https://www.thinkhalo.co.uk/ |
| Halo Digital Ltd | 17 Greatchesters, Bancroft, Milton Keynes MK13 0PB | 01908887117 | |
| Halo Finance LLP | Unit 5 Newhouse Bus Ctr, Old Crawley Rd, Faygate RH12 4RU | 03454501966 | |
| Halstone Technology Ltd | Unit 4, Brock Way, Newcastle-Under-Lyme, Staffordshire ST5 6AZ | 01782557937 | |
| Hampshire Business Computers Ltd | 1 Park Court, Premier Way, Abbey Park Industrial Estate, Romsey SO51 9DN | 01794 830 326 | |
| Hampton Communications Ltd | 10-12 Rodney Road, Portsmouth PO4 8SY | 02392006380 | |
| Hamsterbird Ltd | 73 Aston Ave, Fallowfield, Manchester, Manchester M14 7HL | 07447483268 | |
| Hanbury Group Ltd | Unit 5b, Church End Farm, Little Hadham SG11 2DY | 02031535050 | |
| Hancox IT Solutions Ltd | Bridge House, Derby Road, Long Eaton, Nottingham NG10 1NL | 0115 7959493 | https://www.hancoxit.co.uk/ |
| Handel Capital Ltd | 73 The Common, Parbold, Lancashire WN8 7AE | 01257806298 | |
| Handling UK Ltd | 21 Bucklersbury, Hitchin, Hertfordshire, Hitchin SG4 7HP | 01462615107 | |
| Hands-on Computers ltd | 104 high street, Carshalton SM53AE | 0208 694 9911 | |
| Hanhaa Ltd | International House, 1 St Katharine's Way, London E1W 1UN | https://www.hanhaa.com | |
| Hanndi Ltd | 2 Elm Mews, Horbury, WAKEFIELD WF4 5HB | 01924 274093 | |
| Hannon Telecom Ltd | Dissolved on 26 April 2016 | ||
| Haptic Networks Ltd | Unit 3 Orion Park, Orion Way, Kettering, Northampton NN15 6PP | 01536 316870 | |
| Hard Hat Media Ltd | 33a Kingfisher Court, Hambridge Road, Newbury, Berkshire RG14 5SJ | 07557681841 | |
| Harry Shaw Business Computers | 29-31 Leicester Street, Bedworth, Warwickshire CV12 8GG | 024 7645 5444 | |
| HARTLEPOWER C.I.C. | Hartlepower Energy Hub, 81 Stranton, Hartlepool TS24 7QT | 07599312652 | |
| Harwood Brittain Technology Ltd | Castle Malwood, Minstead SO43 7PE | 023 8081 2888 | |
| Hash Tag Tech and Games | 119 York Road, Hartlepool TS26 9DL | 07900801803 | |
| Hastingwood Securities Ltd | Docklands Business Centre, 10-16 Tiller Road, London E14 8PX | 020 7345 5000 | |
| Hathats Coffee Company Ltd | 67 John Wilson Business Park, Whitstable CT53QT | 01227282902 | |
| Haven Communications | 97 Charles Street, Milford Haven, Pembrokeshire SA73 2HL | 0870 78 79 700 | |
| Haventrust Ltd | Suite 501, 417 Wick Lane, London E3 2JJ | ||
| The Hawkify Group Ltd | The Workstation 15 Paternoster Row, SHEFFIELD S1 2BX | 01143863233 | |
| Hayes IT Consultancy Ltd | M25 Business Centre, 121 Brooker Road, Waltham Abbey EN9 1JH | 020 3515 5150 | |
| HB Telecom (UK) Ltd | HB House, Foleshill Enterprise Park, Courtaulds Way, Coventry CV6 5NX | 0870 750 3666 | |
| HBP Systems | Enterprise House, Woodhouse Road, Scunthorpe DN16 1BD | 01724 400 300 | |
| HBS Consultants Ltd | 11 Mill Lane, Barrowden, Oakham, Rutland LE15 8EH | 08000 199 850 | |
| HBT Communications | https://www.hbtcommunications.com/ | ||
| HD Information Technology Ltd | Stratum House, Stafford Park 10, Telford TF3 3AB | 07502312345 | |
| Headstart Enterprises Ltd | 29 Sutton Road, Kidderminster DY11 6QN | 01562 740 375 | |
| Headwave Ltd | BM Howarth, Springwell Court, Leeds LS12 1AL | 03300 945545 | |
| Headway Technology Services | Shaw House, Shaw Road, Wolverhampton WV10 9LE | 01543 888 150 | |
| Health In Touch Ltd | Sucklings Yard, Church Street, Ware, Herts SG12 9EN | 01920 459 800 | https://www.healthintouch.co.uk/ |
| Healthcare Computing Ltd | Unit 10, millstream Trading Estate, Ringwood BH24 3SB | 01425483865 | |
| Heart Business Systems Ltd | Unit 314/315F The Big Peg, Vyse Street, Birmingham B18 6NF | 0844 556 7076 | |
| Heartwood Computer Services Ltd | 7 Field View, Halifax, West Yorkshire HX3 5LT | 01422 330662 | |
| Heliocentrix Ltd | Beech House, Thorn Road, Marden TN12 9EJ | 01732600170 | |
| Helios IT Ltd | Blaris Industrial Estate, 5 Altona Road, Lisburn BT27 5QB | 028 9094 5542 | |
| Hello Internet | Hello Internet 2619, Chenoweth House, Blackwater, Truro TR48UN | 01305300700 | |
| Hello Telecom (UK) PLC | 19 Musters Road, West Bridgford, Nottingham NG2 7PP | 0115 852 6600 | https://www.hello-telecom.co.uk/ |
| Help Internet Ltd | Help Internet, Ultratec House, 1 Stevenage Business Park, Stevenage SG1 4SZ | 01438983003 | |
| Help IT Consultancy Ltd | 43 Whitefriars Crescent, Westcliff on Sea SS0 8EX | 01702804001 | |
| HELP4IT Ltd | 61 Queen Street, London EC4R 1AF | 0845 257 4448 | |
| Helpdesk Communications Ltd | 21 Court Lane, Erdington, Birmingham B23 6NS | 0845 872 1316 | |
| Helpdesq Ltd | Leith Lodge, Horsham Road, Beare Green, Dorking RH5 4PF | 01306 711 112 | |
| Hemshore Ltd | 30 Leeming Road, Borehamwood, Herts WD6 4DU | ||
| Henderson Morgan Ltd | 163 Station Road, Addlestone KT15 2BA | 07506733166 | |
| Hex Communications Ltd | 24 Abbey Dale, Appley Bridge, Shevington, Wigan WN6 9HX | 07576104540 | |
| Hexsol Ltd | Sophia House, 28 Cathedral Road, Cardiff CF11 9LJ | 02920026291 | |
| HFC Systems Ltd | 1 Roseberry Court, Stokesley Business Park, Stokesley TS9 5QT | 01642 712393 | |
| HFH Communications | |||
| Hi Tel UK Ltd | 26 Waldegrave Road, Dagenham, London RM8 2QD | 020 7137 1719 | |
| HIBU (UK) Ltd | One Reading Central, Forbury Road, Reading RG1 3YL | 0118 358 3300 | https://business.yell.com/ |
| High City IT Ltd | Kemp House, 160 City Road, London EC1V 2NX | 02033556516 | |
| High Span Networks Ltd | 14 Alban Park, Hatfield Road, St. Albans, Herts AL4 0JJ | 01727 810 860 | |
| High Tide Consulting Ltd | Dimension House, 81 Stranton, Hartlepool TS24 7QT | 01429818332 | |
| Highgate IT Solutions Ltd | 33, Lythcoe Avenue, Fulwood, Preston PR23SB | 01489 535 901 | |
| Highland IT Ltd | 24 Redwood Cr, inverness IV2 6HB | 01463221189 | |
| Highland Network Ltd | 10 Lotland Street, Inverness IV1 1PA | 0808 168 0088 | https://www.highnet.com/ |
| Highland Wireless & IT Solutions Ltd | Admirals Farm, Edderton IV19 1LQ | 01862808077 | |
| Highlander Computing Solutions Ltd | Systems House, Shepcote Office Village, 333 Shepcote Lane, Sheffield S9 1TG | 0114 2923800 | |
| HighSpeed Office Ltd | 50 Leman Street, London E1 8HQ | 020 7847 4500 | https://www.hso.co.uk/ |
| Highworth UK Ltd | Rowan House, 28 Queens Road, Hethersett, Norwich NR9 3DB | 01603 813 924 | |
| Hiline Communications Ltd | Woodgates, Pardhouse Lane, Stanford Bridge, Worcester WR6 6RX | 01886 812731 | |
| Hill Data Systems Ltd | 39 Oldfield Road, Salisbury SP1 3GQ | 01722 448 888 | |
| HindSight IT & Telecoms Ltd | Chapel Street, Pontnewydd, Newport NP441DL | 01633 740046 | |
| HIPTAC Services Ltd | Basepoint Business Centre, Basepoint Centre, Lincoln Road, Highwycome,, Bucks HP12 3RL | 0844 335 6398 | |
| Hi-Tech Installations | Shaw Park Office Centre, Silver Street, Huddersfield HD5 9AF | 01484 550 760 | |
| Hiteishee Ltd | 24-26 Arcadia Avenue, London N3 2JU | 08009998080 | |
| Hive Technology and Digital Consultancy Services Ltd | 145 edge lane, wavertree, Liverpool L7 2PL | 03303500501 | |
| Hive Telecom Ltd | Global House, 2 Crofton Close, Lincoln LN3 4NT | 01256 857000 | https://www.hivetelecom.com/ |
| HiWiFi | http://hiwifi.co.uk/ | ||
| Hixon Group Ltd | Unit 3 Carlton House, Stoke on Trent ST4 1JP | 01782694288 | |
| HJS Essentia Ltd | 12-14 Carlton Place, Southampton SO15 2EA | 023 8023 4222 | |
| HJS Technology | https://www.hjsessentia.co.uk/ | ||
| Hka Trading And Marketing Ltd | 23 Bourne Avenue, BASILDON, LONDON SS15 6DX | 0+442081333230 | |
| HM Network Ltd | Cotton Court, Church Street, Preston PR1 3BY | 01772 508121 | |
| Hogan Communications Ltd | Unit 15, Ahead House, Sandbeds Trading Estate, Ossett WF59ND | 01924907147 | |
| Holdfast Systems Ltd | 4 Duffins Orchard, Ottershaw KT16 0LP | 01932 497990 | |
| Holistic Technologies Ltd | DBIC, Ten Pound Walk, Doncaster, South Yorkshire DN4 5HX | 01302 235 050 | |
| Holker Network Solutions Ltd | Holker Business Centre, Burnley Road, Colne, Lancs BB8 8EG | 01282 859 806 | https://www.holkerit.co.uk/ |
| Holler Technology Ltd | Landmark House, Station Road, Hook RG27 9HA | 01256 962 200 | |
| Hollinbay Consultancy Services Ltd | Unit 4 Cliffe Park, Bruntcliffe Road, Morley, Leeds LS27 0RY | 01132508006 | |
| Home Group Ltd | Home Group Ltd, 2 Gosforth Parkway, Gosforth NE12 8ET | 0845 1553222 | |
| Home Office | |||
| homelineuk | 22 MILBANK, DURHAM TS248NF | 01429 293012 | |
| Home-save.co.uk Ltd | Kathleen House, 10 James Road, Birmingham B11 2BA | 0845 263 6943 | |
| Honey Telecom Ltd | 1 Trinity Place, Midland Drive, Sutton Coldfield, West Midlands B72 1TX | ||
| Hooper Technical Solutions Ltd | 17 MARKET HILL, COGGESHALL CO6 1TS | 07398209465 | https://www.hoopertechnical.co.uk/ |
| Hopkins Network Services Ltd | Hopkins Network Services LTD, 18 Montague Way, Somerset, Chard TA20 2BY | 07817687582 | |
| Horizon Telecom Networks Ltd | Unit 4, Longwood Court, Love Lane, Cirencester, Gloucester GL7 1YG | 01285 656 421 | https://www.horizontelecom.co.uk/ |
| Horizon Telecom UK | https://www.horizontelecom.co.uk/ | ||
| Horizon Telecoms International Ltd | 130 Old Street, London EC1V 9BD | 07734255596 | |
| Horizone Ltd | Futura House, Station Road, Maldon, Essex CM9 4LQ | 01621 843 366 | |
| Horsebridge Network Systems Ltd | Unit 4, Herrick Way, Staverton Technology Park, Cheltenham GL51 6TQ | 08448150510 | |
| Hospedia Ltd | Landmark Place, 1-5 Windsor Road, Slough SL1 2EJ | 0845 414 6000 | https://www.hospedia.com/ |
| Hospitality Networks and Services Plus UK Ltd | 126-128 New Kings Road, London SW6 4LZ | 020 7348 6770 | |
| Host My Office Ltd | Calverley House, 55 Calverley Road, Tunbridge Wells TN1 2TU | 03333110020 | |
| Hosted Clouds Ltd | 4 The Green, Blackboys TN22 5LP | 02086297499 | |
| Hosted Connections Ltd | 13 Widecombe Close, Bedford MK403BL | 01234860055 | |
| Hosted Desktop Uk Ltd | Unit 24, Basepoint Business Centre, Yeoford Way, Marsh Barton Trading Estate, Exeter EX2 8LB | 02032396181 | |
| Hosted Phones Ltd | The Old Courthouse, Chapel Street, Dukinfield, Cheshire SK16 4DT | 0161 885 2085 | |
| Hosted Scotland Ltd | 15D Skye Road, Walker House, Prestwick, Prestwick KA9 2TA | 01412630012 | |
| Hosted Technology Ltd | 25 LIme Street,, London EC3M 7HS | 020 7952 6666 | |
| Hosted Telco Ltd | Electric Works, 3 Concourse Way, Sheffield S1 2BJ | 01143122700 | |
| Hosted Telco (South) Ltd | Access House, Manor Road, Ealing, London W139RD | 02030268655 | |
| Hosted Telephone Systems Ltd | 150 Minories, London EC3 1LS | 020 7098 2544 | |
| Hosting Systems Ltd | Bellringer Road, Stoke on Trent, Staffs ST4 8GB | 0845 888 8001 | |
| Hosting Techniques Ltd | 5 Chancery Gate Business Centre, Twyford RG10 9LT | 01189241412 | |
| Simulant Systems Ltd | Popeshead Court Offices Peter Lane, York YO1 8SU | 08712663676 | |
| Hostingit4u Ltd | 3rd Floor, 207 Regent Street, London, London W1B 3HH | 02038806985 | |
| Hostingus | https://www.hosting.us.com/ | ||
| Hosts-Un Ltd | Unit 12, Beech Court, Wokingham Road, Hurst RG10 0RQ | 0118 334 1399 | |
| Hotality IT Solutions Ltd | View Point, Basing View, Basingstoke RG21 4RG | 01256 592150 | |
| Hotech Ltd | 11 Approach Road, London SW20 8BA | 020 8544 9321 | |
| Hotel Guest Technology Ltd | The Ridge, Blunsdon, Swindon SN26 7AD | 03302020530 | |
| Hotel Technology Management (HTM) Ltd | 56 Alston Drive, Milton Keynes MK13 9HB | 01908 525 140 | |
| Hotline Energy Plc | |||
| Hotlinks Internet Services | https://www.hotlinks.co.uk/ | ||
| HotSpot Drive | https://www.hotspotdrive.com/ | ||
| Houxou | https://www.houxou.com/ | ||
| Howsons Ltd | Kirkshead, Westhouse, Ingleton, North Yorkshire LA6 3NJ | 01524 241 422 | |
| HP Networks Ltd | 2 Lislasley Road, Dungannon BT71 6TA | 02890538411 | |
| HPCB.co.uk | Unit 8 Wisdom facilities Centre, 42 Hollands Rd, Haverhill CB9 8SA | 08718712100 | |
| HQ Telecom Ltd | Unit 51, Waterside Trading Centre, Trumpers Way, London W7 2QA | 0844 901 0044 | |
| HTL Telecom Ltd | 23 Nether Hall Avenue, Great Barr, Birmingham B43 7EU | 0121 360 4824 | |
| Hub Business Solutions Ltd | 5 Fewster Road, Nailsworth, Glos GL6 0DH | 01453 833 684 | |
| Hub Network Services Ltd | St Brandons House, 29 Great George Street, Bristol BS1 5QT | 01179200045 | |
| Hubbnet Ltd | Nelson Street, HULL HU11XE | 01964 207207 | https://hubbnet.net/ |
| Hubtel Communications Ltd | Unit C6 HRS House, Garretts Green Lane, Garretts Green, Birmingham BB33 0UE | 0870 7744075 | http://www.hubtelcomms.co.uk/ |
| Huddle Business Solutions Ltd | 8 Giles Close, Hedge End, Southampton SO30 2TH | 07528807247 | |
| Hudson Hill Consulting Ltd | Lovell House, Birchwood Park, Warrington WA3 6FW | 01925294780 | |
| Hugh Symons | Alder Hills Park, 16 Alder Hills Park, Poole, Dorset BH16 4AR | 01202 714316 | |
| Hughes Consortium Ltd | The Technology Suite, 6A Lines Street, Morecambe LA4 5ES | 01524238999 | |
| Hughes Network Systems Ltd | Sunrise Parkway, Linford Wood, Milton Keynes MK14 6LS | 01908 425300 | |
| Hughes Network Systems Ltd | 57 partick road, sunderland, sr49bg | 01915512778 | |
| Hull and East Yorkshire Communications Group Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 03300101300 | |
| Hull Telecoms Ltd | Systech IT Solutions, Skilling's Lane, Hull HU151EN | 01482778703 | |
| Hullabaloo Communications Ltd | Nelson House, 1a Church Street, Epsom KT17 4PF | 0845 612 8585 | |
| HulloMail Ltd | 27-33 Paul Street, London, EC2A 4JU | https://www.hullomail.com/ | |
| Humology Ltd | 33-35 Daws Lane, London NW7 4SD | 03300103030 | |
| Hutchinson Networks Ltd | 3 Wester Shawfair, Edinburgh EH22 1FD | +44 (0)131 554 3438 | |
| Hutchison 3G UK Ltd | Star House, 20 Grenfell Road, Maidenhead SL6 1EH | 0333 300 3333 | https://www.three.co.uk/ |
| Hutchison Ports UK Ltd | Tomline House, The Dock, Felixstowe IP11 3SY | 01394 604611 | |
| Hutchison Technologies Ltd | Innovation Centre, 1 Harrison Road, Dundee, Angus DD2 3SN | 01328 835013 | |
| Huteleven Ltd | 65 Rosamond Road, Bedford MK40 3UG | 01234581060 | |
| HW Technology Ltd | 120-124 Towngate, Leyland PR25 2LQ | 0845 5048989 | |
| Hybrit LLP | Royal Ordnance Depot, Weedon Bec, NORTHAMPTON NN7 4PS | 07890266864 | |
| Hyde Park Corner Installations | https://www.hydeparkcorner.net/ | ||
| Hydra Communications Ltd | C/O Blenheim, Elm House, 10 Fountain Court, Bradley Stoke, Bristol BS32 4LA | 08000803330 | |
| HYPE Comz Ltd | 16th Floor Terminus House, Terminus Street, Harlow CM201XA | 01279677010 | |
| Hyper 1 Digital Solutions Ltd | 3 Foxmire Grove, Barnsley S753TT | 01226 610240 | |
| Hyper Communications Ltd | 71-75 Shelton Street, London WC2H 9JQ | 01392333314 | |
| Hyperoptic Ltd | 200 Shepherds Bush Road, London W6 7NL | 0333 332 1111 | https://www.hyperoptic.com/ |
| I Aberdeen Ltd | Navigator House, 77 Waterloo Quay, Aberdeen AB11 5DE | 01224 418 238 | |
| I Active | 225, Norberry Road, Norberry, London SW16 4TU | 07932 017 575 | |
| i Data Com | https://www.idata.uk.com/ | ||
| iData Solutions (UK) Ltd | Parkgate House, Welsh Road, Deeside, Flintshire CH5 2LR | 084444 180266 | |
| I Want Stuff Ltd | 2 Parnall Road, Fishponds, Bristol BS16 3JG | 0844 893 2151 | |
| I.A.Z.F.S Ltd | 15 Peckover Street,, Bradford BD1 5BD | 01274 405932 | |
| I.net Internet Services Ltd | 1B Market Place, Grantham, Lincolnshire NG31 6LQ | 01476 512 920 | |
| I.R.I.S. | http://www.iris-incar.co.uk/ | ||
| I.T Communications Ltd | 20-24 High Street, Rayleigh, Essex SS6 7EF | 01702 668836 | https://www.it-communicationsltd.co.uk/ |
| i4commsltd | County House, St Marys Street, Worcester WR1 1HB | 03333600055 | |
| I7 Technologies Ltd | Hampton Heath Industrial Estate, Malpas, Cheshire SY14 8LU | 01948 820787 | |
| Ian Dart Consulting Ltd | 14 Abbey Heights, Askam in Furness LA16 7HT | 01524 805550 | |
| Ian Johnston | 59 Malmesbury Park, Runcorn WA7 1XD | 07436151000 | |
| Ian Renwick | Argyle House, 2a Venetia Road, London W5 4JD | 02082800380 | |
| IAP(UK) Ltd | Old Bakehouse, Woodend Road, Coalpit Heath, Bristol BS36 2LN | 0117 911 4390 | |
| IB2I Ltd | 145-157 St John Street, London EC1V 4PW | 0333 305 8100 | |
| iBasis | Regina House, 4th Floor, 1 Queen Street, London EC4N 1SW | 020 3451 4211 | https://ibasis.com/ |
| Ibcos Computers Ltd | Abacus House, Acorn Business Park, Ling Road, Poole, Dorset BH12 4NZ | 01202 714 200 | |
| IBIT Solutions Ltd | Enterprise House, Courtaulds Way, Coventry CV65NX | 02476687042 | |
| iBrowse Ltd | Sovereign House, 212-224 Shaftesbury Ave, London WC2H 8HQ | 0845 508 2537 | |
| IBSC | |||
| IBTS Ltd | The Old Church, Quicks Road, London SW19 1EX | 0330 323 0152 | |
| Ibub Communications Ltd | Glenone Business Park, Kilrea Road, Portglenone, Ballymena BT44 8PE | 028 2765 7309 | https://www.ibub.co.uk/ |
| iCard European Telecommunications (Ireland) | Dissolved on 15 September 2015 | ||
| ICC Networks Ltd | Monarch House, 7 Queen Street, Leeds LS1 2TW | 0113 350 5030 | http://www.iccnetworks.com/ |
| Ice Media (London) Ltd | 24-26 Arcadia Avenue, Finchley, Finchley, London N3 2JU | 020 3358 0000 | |
| Ice Telecommunications Ltd | Crewe House,4 Oak Street, Crewe CW2 7BX | 03332025000 | |
| Icewyche Ltd | 178 Monton Road, Monton, Manchester M30 9GA | 0871 200 2280 | |
| iCloud Support Ltd | Melfort Road, The Laurels, The Laurels, Crowborough TN6 1QT | 01273906609 | |
| Icloud Telecom Ltd | 61 Collingwood Road, Southsea PO5 2QZ | 02393 812 050 | |
| Icom | Unit 3, Brent Mill Business Park, South Brent TQ10 9YT | 01364 649310 | |
| ICOM Network IP Ltd | 2M Trade Park, Beddow Way, Aylesford ME20 7BT | 01622797600 | |
| Icom Telecommunications Ltd | 3 Kings Row, Armstrong Road, Maidstone, Kent ME15 6AQ | 01622 655218 | |
| iComm Communications Ltd | 37 Caxton House, Kings Park Road, Northampton NN3 6LG | 0333 006 5254 | |
| Icomm Protect & Connect Ltd | 109 Festing Grove, Southsea PO4 9QE | 02392006581 | |
| ICON I.T Services Ltd | 9 Devonshire Square, London EC2M 4YF | 0844 4780533 | |
| Iconism Ltd | Priory Road, Rochester ME2 2EG | 01634 715571 | |
| Iconnect Telecom Ltd | 8, Jasper Avenue, Rochester, Medway ME1 2LA | 07454810181 | |
| Iconology Ltd | The Old Barn, Park Farm, Brabourne, Ashford, Kent TN25 6RG | 01303 813 700 | |
| IcoSys Computers & Communications Ltd | Harman House, Dunlop Road, Ipswich IP2 0UG | 01473 211 330 | |
| Icron Network Ltd | 58 Marsh Wall, London E14 9TP | 020 7170 0400 | https://www.vectone.com/ |
| ICS 1989 Ltd | |||
| iCS Communications | https://www.icscomms.co.uk/ | ||
| iCS Connect | https://www.icscomms.co.uk/ | ||
| Intelligent Communication Services Ltd | Norlands Colham Green Road, Hillingdon, Middlesex UB8 3QQ | 01895 232 917 | |
| iCS Network Services | https://www.icscomms.co.uk/ | ||
| ICS Networks | |||
| ICS&M Ltd | Unit D3 Bath Bridge Business Park, Bath Road, Bridgwater TA6 4SZ | 0845 006 0886 | |
| Ict Infrastructure Ltd | Kemp House, 152-160 City Road, London EC1V 2NX | 02085141410 | |
| ICT PROFESSIONALS Ltd | Sheffield Business Centre, Europa Link, Tinsley, Sheffield S9 1XZ | 07961290891 | |
| ICT Studio Ltd | 9 Eton Place, Plymouth PL1 5DT | 01752 710810 | |
| iCT4 Ltd | Pool Innovation Centre, Trevenson Road, Redruth TR15 3PL | 01209 311312 | |
| Ictn ltd | Unit 1 MW Power Building, Sandbach Road, Staffordshire ST7 3RA | 01782 406406 | |
| ICUK Computing Services Ltd | Suite 5, Metropolitan House, 38-40 High Street, Croydon CR0 1YB | 0345 009 9175 | https://www.icuk.net/ |
| ICUK Computing Services | 1-3 Pampisford Road, Purley, Surrey CR8 2NG | 0845 0099175 | https://www.icukhosting.co.uk/ |
| ICUK Hosting | https://www.icukhosting.co.uk/ | ||
| ICUK Net | https://www.icukhosting.co.uk/ | ||
| Icytea Ltd | Unit 1, The Old Print Works, FIshponds Road, Wokingham RG41 2QX | 01189360084 | |
| iDance LTD | 2 Rowantree Road, Enfield EN2 8QA | 02083661987 | |
| Idaq | https://www.idaq.com/ | ||
| Idaq Networks | https://www.idaqnetworks.com/ | ||
| i-dash Ltd | Suite 3, Orchard House, Tebbutts Road, St Neots Cambs PE19 1AW | 0845 026 1145 | |
| iData Com Ltd | Vision House, Denbigh Road, Mold CH7 1FT | 08448476766 | |
| IDE Group Manage Ltd | Napoleon House, 7 Riseley Business Park, Riseley, Reading RG7 1NW | 03448741000 | |
| IDE Group Voice Ltd | Interchange, 81–85 Station Road, Croydon CR0 2RD | 0344 874 1000 | https://idegroup.com/ |
| Idea Data Services LTD | Basepoint Tewkesbury, Oakfield Close, Tewkesbury Business Park, Tewkesbury GL20 8SD | 01684 773857 | |
| Ideal Unified Communications Ltd | Suite C 411 Warrington Road Culcheth Warrington, WA3 5SW | 08432 120 060 | |
| IDEAL PC Solutions Ltd | 114 Hither Green Lane, REDDITCH B98 9BW | 01527591493 | |
| Ideal Telecoms Ltd | HPF House, Park Road, Toddington, Bedfordshire LU5 6HG | 08006 529 863 | |
| Ideal Unified Communications Ltd | 22 Bold Street, Warrington, Cheshire WA1 1JL | 08432 120 060 | |
| IDN Ltd | 25-27 Thames Street, Hampton, Middx TW12 2EW | 020 8408 8899 | https://www.idnltd.com/ |
| IDNet Studio | Bridge House, Bridge Street, Hitchin, Herts SG5 2DF | 01462 656700 | https://www.idnet.net/ |
| IDT Global Ltd | Telephone House, 69-77 Paul Street, London EC2A 4NQ | 020 7549 6000 | https://www.idt.net/ |
| IDT Support Solutions Ltd | Suite 5, Southworth Business Suites, Southworth Road, Newton Le Willows WA120HS | 01925363600 | |
| Iface Comms | 1st Floor, Victoria Foundry, 11 Marshall Street, Leeds LS11 9EH | 03301002500 | |
| iFace Solutions Ltd | 81,High street, Lincoln LN1 2HA | 08001 448844 | |
| IGC Fixed Line Ltd | 8-9 Horsted Square, Bellbrook Business Park, Uckfield, East Suusex TN22 1QG | 01825 768 118 | |
| Ignite Service Provider Ltd | 3 Buckingham Court, Rectory Lane, Loughton, Essex IG10 2QZ | 0845 9000 417 | |
| iHub 2 Ltd | The Innovation Centre, Milton Park, 99 Park Drive, Milton Park, Oxon OX14 4RY | 020 3019 0000 | https://www.ihub.co.uk/ |
| iHub UK Ltd | In administration June 2015 | ||
| IITAC Ltd | Suite 306, Warth Business Centre, Bury BL9 9NB | 0161 763 0300 | |
| IITL Ltd | Heath House, Cheadle Road, Uttoxeter, Staffordshire ST14 7BY | 0843 2891247 | |
| IJNetworks Ltd | 2 Eastview, St Cuthberts Lane, Hexham NE46 2ES | 01434 603 999 | |
| Ikiji Ltd | The Idea Factory, 20 Mearns Street, Aberdeen AB11 5AT | 03450950050 | |
| IKM Network Communications Ltd | Intec House, St Nicholas Close, Fleet GU51 4JA | 01252 365700 | |
| Ikona (I.T.) Ltd | The Coach House, Leckwith Road, Cardiff CF11 8AU | 0845 226 3070 | |
| IKONIX Telecoms Ltd | IKONIX House, Chart Hill Road, Staplehurst, Kent TN12 0RW | 0844 576 3459 | |
| ilicomm Technology Solutions Ltd | Vincent Court, Hubert Street, Aston Lock, Birmingham B6 4BA | 0121 289 3434 | |
| Ilkley IT Services Ltd | 4 Strathmore Road, n/a, n/a, Ilkley LS29 8PQ | 01943 601601 | |
| Illumini communications | 69 Millhouse Road, Antrim, Antrim BT412UP | ||
| iLomond Ltd | East Dualt, Killearn, Glasgow G63 9QW | 03333 445500 | |
| Ilux Ltd | 3 Cabot House, Compass Point Business Park, Stocks Bridge Way, St Ives PE27 5JL | 01480 501500 | |
| IM Software Ltd | PO Box 219, Orpington, Kent BR6 0WJ | https://www.im-software.co.uk/ | |
| Image Logistics Ltd | Unit 15 Fisherrow Ind.Est, Newhailes Road, Musselburgh EH21 6EH | 0131 653 1300 | |
| Imagine Broadband | https://www.imagine.ie/ | ||
| Imbil Consultancy Services Ltd | Flat 1, 12 -14, ST Mary's Road,, London SE15 2DW | 07861474856 | |
| Imdad Hussain | Toller Business Centre, 451 Toller Lane, Bradford BD9 5NX | 08455046511 | |
| Imerja Ltd | Hallmark House, Paragon Business park,, Chorley New Road, Horwich, Bolton BL6 6HG | 0870 8611488 | |
| IMEX Technical Services LTD | The Threshing Barn, Cowage Farm Business Centre, Foxley, Malmesbury, Wiltshire SN16 0JH | 01666 827600 | |
| Imicro UK LTD | 25 Sturdee Avenue, Gillingham KENT | 01634 280795 | |
| IMImobile Europe Ltd | Tempus Court, Bellfield Road, High Wycombe HP13 5HA | 01494 750500 | |
| Immedia Broadcast Ltd | 7 - 9 The Broadway, Newbury RG14 1AS | 01635572800 | |
| Immervox Ltd | 22-24 Hornsby Square, Southfields Business Park, Basildon, Essex SS15 6SD | 0800 652 4012 | https://www.immervox.com/ |
| Impact Computing and Consulting Ltd | Karlynda House, Blackpool Road, Kirkham, Lancashire PR4 3RE | 01772 684 282 | |
| Impact IT Solutions UK Ltd | Unit 27B Osprey Court, Hawkfield Business Park, Whitchurch, Bristol BS14 0BB | 0117 2020200 | |
| Impelling Solutions Ltd | Unit 16 Treeton Enterprise Centre, Rother Crescent, Rotherham S60 5QY | 03333444459 | |
| Imperial Telecom Ltd | 46 Syon Lane, Isleworth, Middlesex TW7 5NQ | 020 8144 1786 | |
| Impirius Ltd | The Croft, Bascote Heath, Southam, Warwickshire CV47 2DW | 01926 812163 | |
| Ims Health Ltd | 7 Harewood Avenue, London NW1 6JB | 020 3075 4555 | |
| IMS Technology Services Ltd | Carillon House, Chapel Lane, Wythall, Birmingham B47 6JX | 01564 821630 | |
| Imsp Ltd | The Coach House, Bear Lane, Hare Hatch, Reading RG10 9XR | 08451392000 | |
| Imtex Technologies Limied | 18 Linford Forum, Rockingham Drive, Milton Keynes, Buckinghamshire MK14 6LY | 08447 644444 | |
| In 2 Networks | 1 South Road, Newton Abbot TQ12 1HQ | 01626331756 | |
| In2com Ltd | Kandoy House, 2 Fairview Strand, Dublin 3, Ireland | 1800 911 800 | https://in2tel.ie/ |
| Incedit Ltd | The Saltings, Church Street, Goldhanger, Maldon CM9 8AR | 01245905456 | |
| Incito Ltd | 9 Bankhead Drive, Sighthill Industrial Estate, Edinburgh EH11 4EJ | 0131 202 5732 | https://www.incito.co.uk/ |
| Inclarity Communications Ltd | 1 Lyric Square, London W6 0NB | 0800 987 8080 | https://www.inclarity.co.uk/ |
| inCloudOne Ltd | inCloudOne House, 1 North Poulders Farm, Sandwich, Kent CT13 9JE | 0800 0546 111 | |
| Incom Business Systems | Waterside, Trafford Wharf Road, Manchester M17 1WD | 0161 876 5353 | https://www.incom-business-systems.co.uk/ |
| Incommsec Ltd | 780-790 Finchley Road, London NW11 7TJ | 020 3368 6301 | |
| Incovo Ltd | 5 Nasmyth Court, Houston Industrial Estate, Livingston West Lothian EH54 5EG | 0845 450 1780 | https://www.incovo.com/ |
| INDEPENDENT COMPUTERS OWNERS NETWORK P.L.C. | Albright House, 156 St Albans Road, St Albans AL4 9LP | 01727730000 | |
| Independent Fibre Networks Ltd | Driscoll 2, Ellen Street, Cardiff CF10 4BP | 0845 051 1669 | |
| Independent Fibre Retail Ltd | Driscoll 2, Ellen Street, Cardiff CF10 4BP | 0800 331 7638 | https://www.seethelight.co.uk/ |
| Independent Telecom Brokers Ltd | ISDN Buildings, Ingatestone Road, Stock, Essex CM4 9PD | 08456 126 123 | |
| Independent Telecommuications Consultants Ltd | Chaucer House, 4-6 Upper Marlborough Road, St Albans, Hertfordshire AL1 3UR | 08451 270 270 | |
| Independent Telephone Service | Richmond House, Tontine Street, Blackburn BB1 7ED | 01254 244920 | |
| Indexscope Ltd | Hillingdon House, 386-388 Kenton Road, Harrow, Middlesex HA3 9DP | 0845 004 6006 | |
| Indigo Data | 14 Paragon, Ramsgate CT11 9JX | 01332959000 | |
| Indigo Ecommerce Digital Ltd | 4 Royston Road, 2 Moorpark Avenue, Livingston EH54 8AH | 01414420202 | |
| Boundary Communications Ltd | 148 Leadenhall Street, London EC3V 4QT | 0800 032 3621 | |
| Indigo Intergrated Solutions Ltd | Units C3 and C4, Romany Works Business Park, Wareham Road, Poole BH16 6JL | 01202 237205 | |
| Indigo IT Ltd | The Office, 92 Guildford Road, Lightwater, Surrey GU18 5RP | 01483 472 200 | |
| Indigo IT Solutions | 58 Tattenham Way, Tadworth KT20 5NJ | 0203 0044789 | |
| Indigo Marketing Ltd | Winchester House, Deane Gate Avenue, Taunton TA1 2UH | 01823 704050 | |
| Indigo Telecom Group | Castlegate Business Park, Caldicot, Monmouthshire NP26 5AA | 01291 435500 | |
| Industrial Environment Ltd | LCP House, Kingswinford DY67NA | 01384697992 | |
| Industrial Networks Ltd | LCP House, Pensnett Estate, Kingswinford, Dudley DY6 7NA | 01384697992 | |
| Industrial Webs Ltd | 282 LICHFIELD ROAD FOUR OAKS, Birmingham B74 2UG | 02030067800 | |
| Indy Ware Ltd | Ground Floor, Media House, 31 Freehold Street, Northampton NN2 6EW | 0845 034 6499 | |
| Ineedbroadband Ltd | 385 Newbrook House, Alfreton rd., Nottingham NG7 5LR | 01158718379 | |
| Inenco Group Ltd | |||
| i-Net Communications Group Plc | 68 Lombard Street, Suite 608, London EC3V 9LJ | 0800 810 0100 | https://www.inetplc.com/ |
| i-Net Communications UK Ltd | 25 Ribbesford Avenue, Oxley, Wolverhampton WV10 6DU | 0800 270 7676 | |
| i-net Solutions | The Technology Centre, Station Road, Framlingham, Woodbridge IP13 9EZ | 01728666140 | |
| iNet Telecoms Ltd | Sovereign House, 227 Marsh Wall, London E14 9SD | 020 7043 5555 | https://www.voipfone.co.uk/ |
| Inetwork Ltd | 320a Romford Road, London E7 8BD | 020 7100 0830 | |
| Inevso Ltd | 8 Connaught Place, Hale Barns WA15 8SP | 01614084800 | |
| Infiniguard Ltd | International House, 12 Constance Street, London E16 2DQ | 01942415105 | |
| Infinite Codeworks Ltd | 231 The Vale, London W3 7QS | 0203837 1340 | |
| Infinitel Communications Ltd | Unity House, Westwood Park, Wigan WN3 4HE | 03339960029 | |
| Infinitelimits Ltd | 52 Oaks Drive, HIGHAM FERRERS, Rushden NN10 8EY | 07905772999 | |
| Infiniti-e Ltd | Karlsruhe House, 18 Queensbridge Road, Nottingham NG2 1NB | 0845 226 1914 | |
| Infinity Business Solution Ltd | Shinfield Grange, Cutbush Lane, Reading, Berkshire RG2 9AF | 0330 2020 278 | |
| Infinity Business Systems Ltd | Tara House, Hilltop Road, Hamilton Business Park, Leicester LE5 1TT | 0844 779 8779 | |
| Infinity Direct Ltd | Bramingham Business Centre, Enterprise Way, Luton, Bedfordshire LU3 4BU | 01582 705060 | |
| Infinity System Solutions Ltd | Innovation Centre, Festival Drive, Ebbw Vale NP23 8XA | 0330 9000 009 | |
| Infinity Technology Group Ltd | 34 Frederick Street, Sunderland SR1 1LP | 03300539151 | |
| Infinity Technology Solutions Ltd | The Coach House, Camden Road, Tunbridge Wells TN1 2PY | 0845 450 4600 | https://www.infinitygroup.co.uk/ |
| Infinity Tracking Ltd | London Court, 39 London Road, Reigate, Surrey RH2 9AQ | 033 3122 2600 | https://www.infinity.co/ |
| INFLECTION POINT MSP Ltd | West Combe Stables, Tytherton, Lucas, Chippenham SN15 3RN | 08444142611 | |
| Influential Computers Ltd | PO Box 5025, Checkendon, Reading RG8 OWX | 01491 680036 | |
| Info Sec Partners | The Long Barn, Tufton Warren, Hampshire RG28 7RH | 0845 257 5903 | |
| Infologic Telecom Ltd | 45 Alston Drive, Bradwell Abbey, Milton Keynes MK13 9HB | 01908 711330 | |
| Infomatics Support Services Ltd | C/O ACCOLOGY, USN BOLTON ARENA ARENA APPROACH, HORWICH, BOLTON BL6 6LB | 01244940942 | |
| Inform Billing Solutions Ltd | Unit E The Barton Fields Centre, Barton Blount, Church Broughton, Derbyshire DE65 5AP | 01889 220531 | https://www.informbilling.co.uk/ |
| Inform Telecom Ltd | Unit E The Barton Fields Centre, Barton Blount, Church Broughton, Derbyshire DE65 5AP | 01889 220531 | |
| Information Technologies First Associates Ltd | 16 Willow House, Newhouse Business Park, Grangemouth FK3 8LL | 01324 664713 | |
| Infosystems Ltd | The Barn, Bridge Farm, Holt Lane, Ashby Magna, Lutterworth, Leicestershire LE17 5NJ | 01455 201 000 | |
| Infotech Solutions (UK) Ltd | 2 Ashford House, Beaufort Court, Medway City Estate, Rochester, Kent ME2 4FA | 0845 466 6500 | |
| Infra Dynamic Ltd | 450 Brook Drive, Green Park, Reading RG2 6UU | 01189919345 | |
| Inframatic Ltd | 5 Oakway, Shortlands, Bromely, Kent BR2 0LJ | 077 1180 9709 | |
| Infrasys Ltd | Suite 2 2nd Floor Colman House, Solihull B930HL | 01217949363 | https://infrasys.co.uk/ |
| Ing Telecom Ltd | Unit 10, Berol House, 25 Ashley Road, London N17 9LJ | 02088015555 | |
| Ingenious Ltd | Park House, 22 Park Street, Croydon CR0 1YE | 020 8662 4620 | |
| Ingenitech Ltd | 11a ladybridge Road, Cheadle Hulme, Cheshire SK8 5LL | 0161 485 5464 | |
| Ingenium Ltd | 9 Westcot, Wantage, Oxfordshire OX12 8QB | 01235 751 155 | |
| inIT Together Ltd | 44 Northfield Gardens, Highwoods, Colchester, Essex CO4 9SS | 01206 804874 | |
| Initial IT Services Ltd | Kings House, St Johns Square, Wolverhampton WV2 4DT | 0330 380 1138 | |
| Initial Technologies Ltd | 12 Whittingham Road, Longridge, Preston PR3 2AA | 01772 780 296 | |
| Inkspotwifi Ltd | 3A Dublin Meuse, Edinburgh EH3 6NW | 0131 556 4034 | |
| Innov@te Ltd | 25 Stanely Hill, Amersham, Buckinghamshire HP7 9HP | 01494 727 546 | |
| Innovacom Ltd | Bridgford House, Heyes Lane, Alderley Edge, Chesire SK9 7JP | 0800 019 4522 | |
| Innov@te Ltd | Unit A Acorn Business Parl Ling Road Poole Dorset BH12 4NZ | 0330 999 1000 | |
| Innovated IT Ltd | 52 Hillgate Place, London SW12 9ES | 02039232524 | |
| Innovation IT Consultants | 4 Saffon Way, Whiteley, Fareham, Hampshire PO15 7LQ | 01489 605 504 | |
| Innovation Productions Ltd | Unit 5 Claycliffe Business Park, Canon Way, Barnsley S75 1JU | 01484 865111 | |
| Innovative Cloud Services Ltd | Keepmoat Stadium, Stadium Way, Doncaster DN4 5JW | 01302247530 | |
| Innovative Energy Solutions Ltd | 1st Floor, Beech House, 58, Commercial Gate, Mansfield NG18 1EU | 01623627879 | |
| InnovTech Ltd | Evolve Business Centre, Cygnet Way, Houghton Le Spring, Tyne & Wear DH4 5QY | 0333 344 9800 | |
| Innzone Ltd | Premier House, 112 Station Road, Edgware, Middx HA8 7BJ | 0870 9919205 | |
| Inside I.T. Solutions Ltd | 11 Market Hill, Southam CV47 0HF | 0845 475 5549 | |
| Inside View Ltd | Charwell House, Wilsom Road, Alton GU34 2PP | 01420 388200 | |
| Insight ICT Ltd | 34 Singer Way, Woburn Road Industrial Estate, Kempston, Bedford MK42 7AF | 01234 400190 | |
| Insight Network Solutions Ltd | 87 North Road, Poole, Dorset BH14 0LT | 07545845732 | |
| Insight Networking Solutions Ltd | THE TECHNOLOGY BUILDING, INSIGHT CAMPUS, TERRY STREET, Sheffield S9 2BU | 0845 642 4642 | |
| Inspira Technology Group Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 0843 462 0085 | |
| Inspire Telecom Ltd | 4a Castle Hill View, Rochester ME1 1LA | 03301 373666 | |
| Inspired IT Ltd | Hazelhurt Farm, Valley Road, Hayfield, High Peak SK22 2JP | 01663 308 676 | |
| Inspired Technology Services Ltd | 80 Harvey Drive, Whitstable CT5 3QT | 03333201021 | |
| Inspires Technology Ltd | The Apex, 2 Sheriffs Orchard, Coventry CV1 3PP | 07917014507 | |
| Instafone PLC | Taylor House, Bradford Road, Dewsbury WF13 3EG | 01924 514 4444 | |
| InstallingIT | A116 The Business Park, Runcorn, Cheshire WA7 4QX | 01925 398 666 | |
| Instant On IT Ltd | 63-66 Hatton Garden, 7th Floor, London EC1N 8LE | 02038550055 | |
| Intacloud Ltd | 1 Fore Street, London EC2T 9DT | 0203 773 4445 | |
| Intalect Ltd | Centurion House, Station Approach, Hinckley LE10 1UE | 08456448860 | |
| Intalex Ltd | 167 Great Portland Street, London W1W 5PF | 02086777764 | |
| Intavoice Ltd | Unit 4, Sweetlake Business Village, Longden Road, Shrewsbury SY3 9EW | 01743232316 | |
| Intec Business Solutions Ltd | 23 Ashley Road, Altrincham, Cheshire, Manchester WA142DP | 01616417350 | |
| Intec Microsystems Ltd | 5 The Quadrant, Coventry CV1 2EL | 01217834477 | |
| Intech Ltd | Link House, 273 Crown Lane, Horwich, Bolton BL6 7DG | 01204 675675 | |
| Intech Fusion Ltd | Millworks, Field Road, Busby G76 8SE | 0845 680 8903 | |
| In-Tech Telecom Ltd | Victory Close, Chandlers Ford Industrial Estate, Chandlers Ford, Hampshire SO53 4BU | 02380 242525 | |
| InTechnology Plc | Cardale House, Cardale Court, Beckwith Head Road, Harrogate HG3 1RY | 01423 877400 | https://www.intechnologyplc.com/ |
| Integer Computers Infrastructure & Consultancy Solutions Ltd | 111 Mill Race, Abercarn NP11 4TP | 07771722574 | |
| Integer Telecom Ltd | Oaklands,Trehafod, Pontypridd CF37 2NU | 07772223494 | |
| Integra Telecommunications Ltd | 28 Stephenson Road, Leigh-on-Sea, Essex SS9 5LY | 0800 254254 | |
| Integra-ICT Ltd | T/A Anglia Telecoms, Gateshead Close, Sandy, Beds SG19 1RS | 01767 692 792 | |
| Integral IT Services Ltd | 8 Honey Garth, Melmerby, Ripon HG4 5FA | 01423206996 | |
| Integralcomm.co.uk Ltd | 5-6 Titan Way, Britannia Enterprise Park, Lichfield, Staffordshire WS14 9TT | 01543 412 250 | |
| Integrate Tech LTD | Unit 2 The Ferguson Centre, Manse Road, Newtownabbey, Belfast BT366RW | 02036951010 | |
| Integrated Building Infrastructure Consulting Ltd | 8 Barnes Wallis Road, Fareham PO15 5TU | 01489 285140 | |
| Integrated Business Systems Ltd | 24 Cottesbrooke Park, Heartlands Business Park, Daventry, Northamptonshire NN11 8YL | 01327 302999 | |
| Integrated Business Telecommunications Ltd | 2 Viewpoint, Office Village, Babbage Road, Stevanage SG1 2EQ | 01438 355 355 | |
| Integrated Digital Services Ltd | Grange Court, Raby Mere Road, Raby, Wirral CH63 4JH | 0151 353 3838 | |
| Integrated Digital Solutions Ltd | 30 Abbey Mead Close, Dartford, Dartford DA1 5UQ | 02038709800 | |
| Integrated Marketing Consultants Ltd | Sea Lake Road, Oulton Broad, Lowestoft NR32 3LQ | 01502806150 | |
| Integrated Media Solutions Ltd | 40 BLOOMSBURY WAY, LONDON WC1A 2SE | 00353878122298 | |
| Integrated Network Services Ltd | Room C022 The Heath Boulevard The Heath Business Park, Runcorn WA7 4QX | 01928238390 | |
| Integrated Open Network Systems Ltd | Venture West, Greenham Business Park, Newbury, Berkshire RG19 6HX | 0845 003 9470 | |
| Integrated Telecom Ltd | 9 Downsway, Northampton NN4 0TD | 0774 007 3685 | |
| Integrating Systems Ltd | Fresh Wharf Estate, Quay Road, Barking IG11 7BW | 03333447337 | |
| Integrity IT Ltd | Unit 2, Hope House Farm, Martley WR6 6QF | 01886887811 | |
| Integrity Link Services Ltd | 17 Greenbrae Circle, Bridge of Don, Aberdeen AB23 8NB | 01224794711 | |
| Integrity Office Ltd | Unit 14 Montgomery Way, Rosehill Industrial Estate, Carlisle CA1 2RW | 01228 594 682 | |
| Integritytech Ltd | Unit 30, Moor Park Industrial Centre, Tolpits Lane, Watford WD18 9SP | 01923 297430 | |
| Integrum IT Recruitment Ltd | CAPITAL TOWER BUSINESS CENTRE, CARDIFF CF10 3AG | 07429112314 | |
| Intelesis Ltd | Units 30 & 31, Petre House, Petre Street, Sheffield S4 8LG | 0844 844 4555 | https://www.intelesis.co.uk/ |
| Inteleweb Ltd | Flat 1, Grosvenor Court, Park Lane, Salford M7 4JZ | 03303540321 | |
| InteliCall Ltd | The Barn, Rickstones Road, Rivenhall CM8 3HQ | 01245 807109 | |
| Intelligent Business Group Ltd | Marlowe Business Centre, Orange Street, Canterbury CT1 2JA | 01227314218 | |
| Intelligent Communication Services Ltd | Norlands, Colham Green Road, Hillingdon, Middlesex UB8 3QQ | 01895 232 917 | |
| Intelligent Communitycations 125 | 1 Bath Street, Frome BA11 1DG | 07859062200 | |
| Intelligent IT Solutions Ltd | The Counting House, Dunleavy Drive, Cardiff CF11 0SN | 02920100070 | |
| Intelligent Mesh Technology Ltd | 126C Mill Road, Cambridge CB1 2BQ | 01223 573 170 | |
| Inter Telecommunications Ltd | Didsbury Sports Ground, Ford Lane, Manchester M20 2RU | 07792061427 | |
| Interact Communications Ltd | 16-18 Monument Street, London EC3R 8AJ | 0845 8733110 | |
| Interactive Advertising ltd | 9 Greenacres Avenue, Wokingham RG41 5SX | 01189773763 | |
| Intercity Technology Ltd | 101-114 Holloway Head, Birmingham B1 1QP | 033 0332 7933 | https://www.intercity.technology/ |
| Intercity Telecom Ltd | 101-114 Holloway Head, Birmingham B1 1QP | 033 0332 7933 | https://www.intercity.technology/ |
| Intercommunications Ltd | Unit 8, Cryd Yr Awel, Colomendy, Denbigh LL165YH | 01745813669 | |
| Intercontec Ltd | Basepoint Business Centre, Bromsgrove B60 3ET | 01527 907 650 | |
| Interdata Ltd | 141a Bury New Road, Whitefield, Manchester M45 6AA | 0161 740 7400 | |
| Interface (DCB) Technology Ltd | Tyler Close, Normanton, West Yorkshire WF6 1RL | 01924 224929 | |
| Interface Advantage Ltd | Abbey House, 1650 Arlington Business Park, Theale, Reading RG7 4SA | ||
| Interfuture Systems Ltd | Kemps Farm Business Park, London Road, Balcombe RH17 6JH | 08455210822 | |
| Interhost LLP | MTB House, North Farm Road, Tunbridge Wells TN2 3DH | 0208 150 1459 | |
| Internal Comms (Installations) Ltd | 33 Roman Way, Longridge Road, Preston, preston PR2 5BD | 01772 701002 | |
| Internal Communications Ltd | 33 Roman Way, Longridge Road, Preston, Lancashire PR2 5BD | 01772701002 | |
| Internal Systems Ltd | Verulam House, 110 Luton Road, Harpenden, Herts AL5 3BL | 0845 894 4906 | http://www.isl.com/ |
| International Equipment Ltd | Unit 1 Lawson Hunt Industrial Park, Broadbridge Heath, West Sussex RH12 3JR | 01403 224450 | |
| Internet Central Ltd | Innovation Centre, Keele Science Park, Keele, Staffordshire ST5 5NB | 01782 667788 | https://www.ic.uk/ |
| Internet Connections Ltd | The Chapel, Villa Road, Cheddleton ST13 7EA | 0800 2888 680 | |
| Internet Direct (Chichester) Ltd | Fernhurst House, Clayton Road, Selsey, West Sussex PO20 9DB | 0845 638 7171 | |
| Internet Engineering Ltd | Unit 24 Ffordd Richard Davies, St Asaph Business Park, St Asaph LL17 0LJ | 01745586070 | |
| Internet For Business Ltd | 387 Union Street, Aberdeen, Aberdeenshire AB11 6BX | 0800 027 0110 | |
| Internet For Everything Ltd | Unit 8 Padgate Business Park, Green Lane, Warrington WA1 4JN | 01925818448 | |
| Internet of Things Ltd | 49 Jamaica Street, Liverpool L1 0AH | 0333 315 3333 | https://www.telecomscloud.com |
| Internet Services (EU) Ltd | Regus House, Falcon Drive, Cardiff Bay, Cardiff CF10 4RU | 0844 555 5490 | |
| Internet Software Solutions Ltd | Whateleys Drive, Kenilworth, Warks CV8 2GY | 01926 678407 | |
| Internet Strategies (UK) Ltd | Bon Accord House, Riverside Drive, Aberdeen AB11 7SL | 01224213995 | |
| Internet Technology Products Ltd | 2 Magellan Terrace, Gatwick Road, Crawley RH10 9PJ | 0845 052 4949 | |
| Internetty Ltd | Unit2, High Street, Stone, Staffs ST15 8AU | 0333 102 0000 | https://www.internetty.uk/ |
| Internetworks Mobile Ltd | Maxi House, Halesfield 20, Telford TF7 4QU | 01952 684 333 | |
| Internexus Networks Ltd | 15 Esplanade, St Helier, Jersey JE1 1RB (Dissolved June 2020) | ||
| Internic Ltd | 3 Stratfield Saye, 20-22 Wellington Road, Bournemouth BH8 8JN | 01202 232101 | |
| Interop Solutions Ltd | 9 Minet Drive, Hayes UB3 3JN | 020 7690 0333 | |
| Interoute Communications Ltd | Walbrook Building, 195 Marsh Wall, London E14 9SG | 020 7025 9000 | |
| Interpro Technology Solutions Ltd | Unit F8 Fareham Heights, Fareham PO168XT | 03301133330 | |
| Intersys Ltd | 1 Bourne Court, Southend Road, Woodford Green IG8 8HD | 08450948924 | |
| Interware Ltd | 4 ALEXANDRA ROAD, HALESOWEN B63 4DJ | 01216302000 | |
| Intime Consultants Ltd | 6 The Parade, Prince's Street, Nuneaton CV11 5NR | 02476998863 | |
| Intinfra Ltd | 222 Chorley New Road, Horwich, Bolton BL6 5QD | 0844 824 6060 | |
| Intouch Advance Ltd | Mercury Quays, Ashley Lane, Shipley, West Yorkshire BD17 7DB | 0844-5680000 | |
| IN-Touch Calls Ltd | M25 Business Centres, 121-Brooker Road, Waltham Abbey, Essex EN9 1JH | 020 8507 1693 | |
| InTouch Communication Services Ltd | Olympic House, 28-42 Clements Road, Ilford IG1 1BA | 020 7377 8464 | https://www.phonate.co.uk/ |
| Intouch Communications Ltd | Centaur House, Ancells Business Park, Ancells Road, Fleet, Hants GU51 2UJ | 01252 241000 | https://www.intouchcomms.co.uk/ |
| InTouch Systems | https://www.intouchsystems.co.uk/ | ||
| IntraLAN | https://www.intralan.co.uk/ | ||
| IntraLAN Group Ltd | Kings Avenue House, Kings Avenue, New Malden, Surrey KT3 4DY | 020 8401 7000 | |
| IntraLAN Group Ltd | Kings Avenue House Kings Avenue New Malden Surrey KT3 4DY | 020 8401 7000 | |
| Intrascape Communications Ltd | POBOX 16563, LONDON SW16 4ZT | 0845 638 1052 | |
| Intrasource Ltd | Redcliff Court, Redcliff Road, Hessle HU13 0EY | 01482628800 | |
| Intricall Ltd | 8 Buckingham Road, Epping CM16 5AG | 07793314412 | |
| Intrinsic Technology Ltd | Haydock, Merseyside WA12 0JQ | 14 The Parks | |
| intuitive | Cradley Enterprise Centre, Halesowen B63 2QB | 01384 913914 | |
| Intuitive IT (UK) Ltd | Benedon Rd, Birmingham B26 2UR | 07970 416008 | |
| Intuitive Systems & Networks Ltd | PO Box 6215, Greenham, Thatcham, Berkshire RG19 9GD | 020 3276 2476 / 01635 490 42 | |
| intY Ltd | 170 Aztec West, Bristol BS32 4TN | 01454 640 500 | |
| Invade International Ltd | Orchard Street Business Centre, 13-14 Orchard Street, Bristol BS1 5EH | 033 3344 0784 | https://www.invade.net/ |
| Invatech IT Solutions Ltd | Invatech House, 12 Keane Close, Blidworth, Nottinghamshire NG21 0QY | 0845 258 1600 | |
| Invest IT Ltd | Unit 1, George Street, Huddersfield, West Yorkshire HD3 4JD | 03301331071 | |
| Investroute Ltd | The Old Barrel Store, Draymans Lane, Marlow SL7 2FF | 08453 700 800 | |
| Invew Telecom Ltd | 1st Floor Swan Building, 20 Swan Street, Manchester M4 5JW | 0161 833 1811 | |
| Invicta Telephone Sales Ltd | 12 Montacute Road, Tunbridge Wells TN2 5QR | 01622870550 | |
| Invictanet Ltd | PO Box 206, Pevensey, East Sussex BN24 9FX | 0333 101 4400 | https://www.invictawiz.com/ |
| Invictus At Home Ltd | Enterprise House, Tenlons Road, Warwickshire, Nuneaton CV10 7HR | 01922665522 | |
| Invo Solutions Ltd | Montpellier House, Montpellier Drive, Cheltenham GL50 1TY | 01200 833880 | https://www.integr8.net/ |
| Invoco Ltd | 55-57 High Street, Bromsgrove, Worcs B61 8AJ | 01527 306000 | https://www.invoco.net/ |
| Invomo Ltd | Global House, 2 Crofton Close, Lincoln LN3 4NT | 0844 443 4433 | https://www.gcicom.net/ |
| Invosys Ltd | New Bridgewater House, Mayfield Avenue, Worsley, Manchester M28 3JF | 0161 444 3333 | https://www.invosys.com/ |
| Inzelo Ltd | 87 Stoke Poges Lane, Slough, Berkshire SL1 3NY | 02033280000 | |
| Iomart Hosting Ltd | Lister Pavilion, West of Scotland Science Park, Glasgow G20 0SP | 01419316400 | |
| ion IT Ltd | Office 7, 180 Attercliffe Road, Sheffield S4 7WZ | 08449911963 | |
| IOVOX Ltd | 153 Westbourne Grove, Notting Hill, London W11 2RS | 020 7099 1070 | https://www.iovox.com/ |
| IP Exchange Ltd | Chester House, 150-154 Cross Street, Sale M337AQ | 03300580699 | https://www.ip-ex.com/ |
| Ip Eye Ltd | Unit3, Vivary Mill, Vivary Way, Colne BB8 9NW | 0+441282451301 | |
| IP Infrastructures Ltd | Denby Dale Road, Calder Grove, Wakefield WF4 3QZ | 0870 160 3537 | |
| IP Integration Ltd | Intergration House, Turnhams Green Business Park, Pincents Lane, Reading RG31 4UH | 0118 918 4640 | |
| IP Labs Communications Ltd | Unit 9490, 13 Freeland Park, Wareham Road, Poole BH16 6FH | 02033558988 | |
| IP Logic LTD | 50 Ardlough Road, Londonderry BT47 5SP | 02871343430 | |
| IP Network Communications Ltd | IPNC, 7 Joydens Wood Road, Bexley, Kent DA5 2HS | 0845 1651 360 | |
| IP Office Northwest Ltd | Richmond House, 120 Victoria Road, Wallasey, Wirral CH45 2JF | 0845 009 5544 | |
| IP Phone Solutions Ltd | Beck House, 77a King Street, Knutsford, Cheshire WA16 6DX | 0844 474 9000 | https://www.ipphonesolutions.com/ |
| IP River Ltd | Park Barns, Ruleholme,, Irthington CA6 4NQ | 03300 553 554 | http://www.ipriver.co.uk/ |
| IP Solutions UK Ltd | 24 Monument Street, London EC3R 8AJ | 08000 928 128 | |
| IP Voice Networks Ltd | 57 High Street, Rowley Regis, West Midlands B65 0EH | ||
| IP Wholesale Ltd | Collingbourne House, Spencer Court, 140-142 Wandsworth High Street, London SW18 4JJ | 0333 360 0333 | http://www.ipwholesale.co.uk/ |
| IPCortex Network Services | https://www.ipnsl.co.uk/ | ||
| iPinnacle Ltd | 60 Southwark Bridge Road, London SE1 0AS | 020 7401 4780 | |
| Iportalis Ltd | 4th Floor the Exchange, Station Parade, Harrogate, Harrogate GL1 1TS | 03308089500 | |
| ipsolutionsni Ltd | 152 Albertbridge Road, Belfast BT5 4GS | 02895622110 | |
| Ipswich Computer Services Ltd | Unit 1 Hill Farm Barns, Ashbocking Road, Henley, Ipswich IP6 0SA | 01473 785 845 | https://www.ipswichcomputers.com/ |
| IPV6 Ltd | Berrycentre, Chiltern Drive, Surbiton, Surrey KT5 8LS | 070 4000 1111 | https://ipv6.ltd.uk/ |
| IPX Telecom Ltd | Hallmark House, Downham Road, Ramsden Heath RM11 1PU | 0808 178 8940 | |
| IPX Voice Ltd | IPX Voice Ltd, 11-13 Watling Street, Fenny Stratford, Milton Keynes, Buckinghamshire MK2 2BU | 020 3348 8770 | |
| IP-Xchange Ltd | 3 Wesley Gate, Queens Road, Reading RG1 4AP | 020 3006 1414 | |
| IQ Broadcast Ltd | 7th Floor Crown House, North Circular Road, London NW10 7PN | 02089653920 | |
| IQ in IT LTD | Vine House, 143 London Road, Kingston Upon Thames, Surrey KT2 6NH | 020 8166 8716 | |
| iQela mobile | https://www.iqelamobile.co.uk/ | ||
| iQual Ltd | Crown House, Home Gardens, Dartford DA1 1DZ | 08447704206 | |
| Iqunity Ltd | Building 114, Bedford Technology Park, Thurleigh, Bedford, BEDFORDSHIRE MK442YP | 08704792754 | |
| iRack Ltd | Elizabeth House, Victoria Street, Openshaw, Manchester M11 2NX | 01617110537 | |
| IRG Computers Ltd | Unit 14 Cross Hands Business Workshops, Cross Hands, Llanelli SA14 6RE | 01269 500 055 | |
| Iridium Assets Ltd | Lansdowne house, 57 berkeley Square, Mayfair, London W1J 6ER | 02072909540 | |
| Iris Global Telecom LLP | Europa House, Southwick Square, Hawley Road, Dartford, Southwick BN42 4FJ | 01273874100 | |
| IRL Consulting Ltd | 24 Crosby Hill Drive, Camberley, Surrey GU15 3TY | 01276 516319 | |
| Iron Dome Ltd | 10 Armstrong Close, Walton on thames KT12 2JQ | 02033580203 | |
| IRQ Systems Ltd | 15 Montgomery Close, Ivybridge PL21 0FG | 01752895797 | |
| IS Logic Ltd | Rowlands House, The Rowlands, Coleorton, Coalville LE67 8GH | 08445002160 | |
| ISC Networks Ltd | Solar House, Stukeley Business Centre, Huntingdon, Cambridgeshire PE29 6EF | 01480 421000 | |
| isdn datacom Ltd | |||
| iSimplicity Ltd | 45 Stockmans Way, Belfast BT9 7ET | 02890664002 | |
| ISL Initiative Solutions Ltd | Victory House, 400 Pavilion Drive, Northampton Business Park, Northampton NN4 7PA | 01604 641000 | |
| Isometry Ltd | 10 Wroxham Close, Helsby WA6 0PZ | 03336786666 | |
| Isomob Ltd | Global House, 1 Ashley Avenue, Epsom KT18 5AD | 01372740763 | |
| Ispitt Ltd | 13 Castlecombe Drive, London SW19 6RR | 020 8789 7523 | |
| It & Telecoms Security Ltd | 117 Chorley Road, Swinton, Manchester M27 4AA | 07976951208 | |
| IT 4 Offices Ltd | 166 EnterpriseCourt, Eastways Ind. Est, Witham CM8 3YS | 03333326600 | |
| IT All Figures Ltd | 3 Rosemary Lane, Lower Stondon SG16 6NG | 01462418641 | |
| IT Ambulance | Units 3A/3B, St Martins Courtyard, Chapel Lane, Zeal, Nr. Warminster, Wiltshire BA12 6NZ | 08000 214 999 | |
| IT Answers (UK) Ltd | Second Floor, 29 Parliament Street, Liverpool L8 5RN | 08001707979 | |
| IT Assist | The Tek-Centre, 187 Baker Street, Enfield, Middx EN1 3JT | 0870 7771763 | |
| It Assist Services Ltd | Office 1 Denaby Point, Coalpit Road, Doncaster DN12 4LH | 01709464323 | |
| IT at Work Ltd | 80-100 Gwynne Road, London SW11 3UW | 020 7100 6956 | |
| IT Backbone Ltd | Unit 55 Victoria Industrial Park, Victoria Road, Dartford, Kent DA1 5AJ | 0845 474 7602 | |
| IT Builder Ltd | Pantile Barn, Waterfall Farm, Lower Hatfield Road, Hertford, Herts SG13 8LE | 020 3137 0026 | |
| IT Buzz Ltd | 70 Rothwell Road, Dagenham, Essex RM9 4JA | 0844 484 1017 | |
| IT Champion Ltd | 33 Southernhay East, Exeter EX1 1NX | 01392 454750 | |
| IT Clinic London Ltd | 38 Goodge Street, London W1T 2QW | 02034684052 | |
| IT Connected Ltd | 17 MARKET HILL, COGGESHALL CO6 1TS | 0330 055 2560 | |
| IT Cubed Solutions Ltd | Lower Dean Farm, Parracombe EX31 4PJ | 0330 20 20 321 | |
| It Farm Ltd | Kilburn House, Manchester Science Park, Lloyd Street North, Manchester M15 6SE | 0161 227 0581 | |
| IT First Ltd | Americas House, 273 London Road, Burgess Hill, West Sussex RH15 9QU | 01444 237 219 | |
| IT Genie Ltd | Zurich House, East Park, Crawley RH10 6AS | 0845 0945 333 | |
| IT House Comms Ltd | 39 Brookmill Road, London SE8 4HU | 02071839393 | |
| It In Business Ltd | 720 Centennial Avenue, Elstree, Borehamwood, London WD63SY | 02030211222 | |
| IT Just Done Ltd | 58 Berwick Road, Buxton SK17 9PE | 01246386116 | |
| IT Kept Simple LTD | Apartment 9, 4 Potternewton Mount, Leeds LS7 2FJ | 0113 827 2336 | |
| IT Lab Ltd | Big Studios, 1 East Poultry Avenue, London EC1A 9PT | 020 7030 3111 | |
| IT Lettings ltd | Office E5 Clover House, John Wilson Business Park, Harvey Drive, Whitstable CT5 3QZ | 03303326262 | |
| IT Managed 247 Ltd | 1 Fore Street, Moorgate, London EC2Y 9DT | 02081236681 | |
| IT Managed Services Ltd | West Lancashire Investment Centre, Maple View, White Moss Business Park, Skelmersdale WN8 9TG | 0845 527 8333 | |
| IT Matters | 40, Wentworth Crescent, Mayals, Swansea SA3 5HT | 07454539222 | |
| It Me Services Ltd | 207 Regent Street 3rd Floor, London W1B 3HH | 03333444100 | |
| IT Needs Ltd | 43 Moorland View, Rotherham S63 6DH | 07866 464 403 | |
| IT Norwich Ltd | Burton Road, Norwich NR6 6AT | 01603 554000 | |
| IT Planning | 14 Forge Steading, Banstead SM7 2DT | 01737373212 | |
| IT Positive LTD | Unit 3 Little Braxted Hall, Little Braxted CM8 3EU | 01376653115 | |
| IT Professional Partners Ltd | 25 Harrier Way, Bracknell RG12 8AU | 0118 3914356 | |
| IT Professional Services Ltd | Axwell House, Waterside Drive, Gateshead, Tyne and Wear NE11 9HU | 0191 442 8300 | |
| IT Protocol Ltd | Unit 3 Weston Farm, The Street, Albury, Guildford, Surrey GU5 9BZ | 01483 203 000 | |
| IT Pursuit Ltd | 1 Pegasus House, Peagasus Court, > Tachbrook Park, Warwick CV346LW | 01572504170 | |
| It Qed Ltd | Unit 3, Merchants Court, Knowl Hill, Reading RG10 9UR | 01628825015 | |
| IT Resource Management Ltd | Thames House, St Johns Road, Sidcup DA14 4HD | 02083083300 | |
| IT Services Grimsby Ltd | 22 Wintringham Road, Grimsby DN32 0PA | 01472236221 | |
| IT Services Support Ltd | 92 Wheat Street, Nuneaton CV11 4BH | 01455554708 | |
| IT Simplified Ltd | 192 London Road, Burgess Hill, West Sussex RH15 9RD | 01444 848 160 | |
| IT Solutions | 26 Fosse Road Central, Leicester LE3 5PR | 0116 262 4825 | |
| It Sonix Uk Ltd | Unit 2 Heritage Business Centre, Derby Road, Belper, Derbyshire DE56 1SW | 0844 589 9509 | |
| IT Support Ltd | 5th Floor, Hampton by Hilton, 42-50 Kimpton Road, Luton LU2 0FP | 01582262111 | |
| IT Support 365 | Carlton House, Maundrell Road, Porte Marsh Industrial Estate,, Calne, Wiltshire SN11 9PU | 01793 744100 - 0845 0510800 | |
| It Support Business Ltd | ITSB, Richmond House, Yelverton Road, Bournemouth BH2 6EZ | 03333442204 | |
| IT Telecoms Ltd | OLD TRANSCO DEPT, OSWALD STREET, BURNLEY BB12 0BY | 01254394608 | |
| IT Trouble Free Ltd | Chalfont Hall, Gravel Hill, Chalfont st Peter SL9 0NP | 01753336226 | |
| IT Workhouse Ltd | The Old Workhouse, Higher Union Road, Kingsbridge TQ7 1EQ | 01548898183 | |
| it3000 Ltd | The Barn Bridge Farm, Holt Lane, Ashby Magna, Lutterworth, Leicestershire LE17 5NJ | 01202 830 830 | |
| IT4Automation Ltd | Unit 3 Eclipse Estate, 30 West HIll, Epsom KT198JD | 01372888025 | |
| Italik Ltd | Unit 2B Rudgate Court, Walton, Wetherby LS23 7BF | 01937 848 380 | |
| italk Ltd | Unit 6, Gemini Centre, 136/140 Old Shoreham Road, Hove BN3 7BD | 0845 373 4290 | https://www.italktelecom.co.uk/ |
| Italk Affiliate Telecommunications Ltd | Unit 6, Gemini Business Centre, 136/140 Old Shoreham Road, Hove, East Sussex BN3 7BD | 0845 373 4290 | |
| iTalk247 | http://www.italk247.com/ | ||
| ITB | https://www.itbcomms.co.uk/ | ||
| ITC Communication Services Ltd | 30 Orchard Road, St Annes, Lancashire FY8 1PF | 01253 783 990 | |
| ITC Service Ltd | 39 Swan Road, Swan Indunstrial Estate, Washington NE38 8JJ | 0191 416 2002 | |
| Itc Telecoms Simplified Ltd | Unit 3, Campus Road, Listerhills Science Park, Bradford BD1 1HR | 08456 520450 | |
| Itchen Stationers Ltd | Unit 7 Claylands Park, Bishops Waltham SO32 1QD | 08450213141 | |
| Itconsec Ltd | ITCONSEC LTD, Midlands Technology Centre, Broadlands, Wolverhampton WV10 6TA | 07551153186 | |
| ITCS UK Ltd | 1 NORTH RD, BRIDGEND IND EST, BRIDGEND CF313TP | 01656660016 | |
| iTec BG Ltd | 11 Andrew Terrace, Llanhilleth, Abertillery, Blaenau Gwent NP13 2JL | 01495707810 | |
| ITEC Connect Ltd | ITEC House, Hawkfield Way, Bristol BS14 0BL | 01179511500 | |
| Itec Support Ltd | Suite 2, Prospect House, Bath Road Trading Estate, Stroud Gloucester GL5 3QF | 0845 057 0570 | https://itec-support.co.uk/ |
| Itek Computer Solutions Ltd | iTek Computer Solutions, 114-116, Kirkland, Kendal LA9 5AP | 01539898125 | |
| Itek Systems Management Ltd | 1 Newark Road South, Eastfield, Glenrothes KY7 4NS | 01592 321207 | |
| ITF Tech Ltd | LP4, CEME, Marsh Way, Rainham RM13 8EU | 01708 209 924 | |
| ITG Ltd | Unit 9, J2 Business Park, Bridge Hall Lane, Bury BL9 7NY | 0161 402 3277 | |
| IT-Initiative Ltd | 5 Dicker Mill, Hertford, Hertfordshire SG13 7AE | 0844 933 0735 | |
| ITJ Contracting LTD | 16 Weymouth court, London SW22SH | 02086710765 | |
| It-Logix Ltd | Devonshire House, 582 Honeypot Lane, London, Stanmore HA7 1JS | 02030055848 | |
| IT-MK Ltd | 10 Wren Close, Towcester, Northamptonshire NN12 6RD | 01908880677 | |
| IT-Moneywise Ltd | 64 Upper Mulgrave Road, Cheam SM2 7AJ | 020 8408 7135 | |
| ITPlusIT Ltd | 6 Bayley Street, London WC1B 3HE | 0207 637 9843 | |
| ITS Digital Ltd | 50 Bengeo Street, Bengeo, Hertford SG14 3ET | 01992 515850 | |
| ITS Technology Group Ltd | Elm House Farm, Chester CH3 6EN | 01928 291000 | |
| ITS Telecoms Ltd | Communications House, 26 York Street, London W1U 6PZ | 0844 887 0877 | |
| ITSOS Broadband | Lower Twitchen Farm, Huntshaw EX38 7HQ | 01271446466 | |
| ITsynergy Ltd | PO Box 50283, London EC2P 2WS | 0800 583 9103 | |
| ITVET Ltd | 4 London Road, Bishops Stortford, Herts CM23 5ND | 0870 423 2757 | |
| ITWiser Comms Ltd | New Chartford House, Centurion Way, Cleckheaton BD19 3QB | 01274 868 924 | |
| ITWister LLP | New Chartford House, Centurion Way, Cleckheaton, West Yorkshire BD19 3QB | 01274 868924 | |
| IT-Works 2012 Ltd | 19 College Walk, Kidderminster, Worcestershire DY10 1PL | 0121 270 0808 | |
| ITWorks Computer Systems Ltd | Rivington House, Rockfield Road, Oxted, Surrey RH8 0EL | 01883 722 227 | |
| itxpressuk | 3-5 Alma Road, Carlton House, Headingley, Leeds LS6 2AH | 01133504271 | |
| IV Response Ltd | 57-61 Mortimer Street, London W1W 8HS | 0800 883 0800 | https://www.call2call.co.uk/ |
| Iview Comms Ltd | 413 Leabridge Road, London E10 7EA | 02033226611 | |
| IVOCA Ltd | Suite 106, City House, 131 Friargate, Preston PR1 2EF | 01772311959 | |
| Ivocom Ltd | 51 Pure Offices, Kembrey Park, Swindon SN2 8BW | 01793208050 | |
| Ivy Ltd | The Bakehouse, Bradwell Abbey, Milton Keynes MK13 9AP | 01908 552 900 | |
| IX Wireless Ltd | Lockside Office Park, Lockside Road, Preston PR2 2YS | 01772 921921 | https://www.ixwireless.co.uk/ |
| IZR Solutions | http://www.izr.com/ | ||
| J & E Computers Ltd | 3 Owler Ings Road, Brighouse, Yorkshire HD6 1EJ | 01484 402030 | |
| J & J Systems Uk Ltd | Systems House, 14 Downs Park, Herne Bay, Kent CT6 6BY | 01227371375 | |
| J and V Data Services Ltd | 358 London Road, Hadleigh, Essex SS7 2DD | 01702 410 043 | |
| J.G Fenn Ltd | Second Floor West Court, Riverside Park, Campbell Road, Stoke-on-Trent ST4 4FB | 01782 344 000 | |
| j2 Global Ireland Ltd | Unit 3, Woodford Business Park, Santry, Dublin 17, Ireland | 0800 066 9939 | https://www.j2global.com/ |
| J4zz Consulting Ltd | 25 HILLINGDON RISE, 25 HILLINGDON RISE, 25 HILLINGDON RISE, SEVENOAKS TN133RE | 07475551414 | |
| JabbaTalk Ltd | Unit 2, Riverside Park, Caton Road, Lancaster LA1 3PE | 01524 39212 | https://jabbatalk.com/ |
| jabez200 | Unit 2A, The Ferriers Ind Estate, Annscroft SY58AN | 01743860478 | |
| JAD Logic | Bush House, Seveock, Greenbottom, Truro TR4 8QH | 01872 561 234 | |
| Jada Group Ltd | Office 7 35-37, Ludgate Hill, London EC4M 7JN | 0330 223 6020 | |
| Jade Solutions Ltd | Laurel House, Woodlands Park, Ashton Road, Newton-le-Willows WA12 0HF | 01925 295 400 | |
| Jade Telecom Ltd | 4 Brunel Way, Fareham PO15 5TX | 07850045966 | |
| Jadod IT Ltd | Unit 1, Six Ways Industrial Estate, Malvern WR14 3NB | 01684565709 | |
| Jaeger& Co | 12, Ryder Crescent, Southport PR8 3AE | 03333444534 | |
| Jagger Systems Ltd | 1 The Links, Herne Bay CT6 7GQ | 0203 880 0199 | |
| Jaguar Telecom Ltd | 2nd Floor, Titan Court, 3 Bishop Square, Hatfield AL10 9NE | 020 3829 6000 | |
| Jaintel Ltd | 27 Gloucester Road, London WC1N 3AX | 03306060666 | |
| James Janicki | 67 Church Rd, Tilbury RM18 7AJ | 08452573810 | |
| James Thomason & Co | 17 Hampshire Court, Stanton Road, London SW13 0ES | 07956 220 882 | |
| JamesCash.co.uk Ltd | Suite 2 Winwood Court, Norton Road, Stourbridge, West Midlands DY8 2AE | 01384 880 660 | |
| Jameson Lomax | 6 Wilford Lane, West Bridgford, Nottingham NG2 7QX | 0115 982 5255 | |
| Jandu Technologies Ltd | SB210, Telford Innovation Campus, Telford TF2 9NT | 01952257554 | |
| Janua Hortorum Ltd | 10 Park Gate, Bradford BD15BS | 01274 701150 | |
| Jasmine IT | 28 Forge Close, South Muskham, Newark NG236EG | 01636-679301 | |
| Jason Clark | 253 Kings Road, Ashton under Lyne OL6 9EG | 07446059659 | |
| Jason Moore | 40 beaford road, manchester M22 0AG | 07715665930 | |
| Jaytag Computer Ltd | Maddison House, 226 High Street, Croydon CR9 1DF | 02087614452 | |
| JBC Computer Systems (Coventry) Ltd | Bayley House, Coventry CV1 5RJ | 02476 433402 | |
| JC Telecom Consultants Ltd | 144a Springvale Road, Winchester SO23 7RB | 03300431953 | |
| JC&C Bowers Telecoms Ltd | Arena Business Centre, Lime Tree Gate, Basingstoke RG24 8WH | 0330 159 8102 | |
| JCmicro Ltd | 30 musters road, nottingham NG2 7PL | 01159825599 | |
| Jcom UK Ltd | 63-67 High Street, Teddington, Middlesex TW11 8HA | 020 8943 2222 | |
| Jcs (Uk) Ltd | 66 Armour Rd, Tilehurst, Reading RG31 6HF | 01189677817 | |
| JCS-COM-SOL Ltd | 19 Hillneuk Ave, Bearsden, Glasgow G61 3PZ | 0141 942 8437 | |
| JCWORKS Ltd | 36 Market Place, Selkirk TD7 4BL | 01750725007 | |
| Jd Innovates Ltd | 6 Top Road, Kempsford, Fairford, Gloucestershire GL7 4EG | 07789942042 | |
| Jd Telecom Ltd | 71-75 Shelton Street, Greater London, London WC2H 9JQ | 08009871987 | |
| Jelly Communications Ltd | 44 Barwell Business Park, leatherhead Road, Chessington, Surrey KT9 2NY | 0808 161 0000 | |
| Jeremy Sutton Consultancy Ltd | 112 Oakdene Crescent, Weddington, Nuneaton CV10 0DT | 07973 861817 | |
| Jersey Airtel | Le Masurier House, La Rue Le Masurier, St Helier, Jersey JE2 4YE | 07829 700121 | https://www.airtel-vodafone.com/ |
| Jet Telecom Ltd | Richmond Court, 216 Capstone Road, Bournemouth, Dorset BH8 8RX | 0845 070 0808 | |
| JG Communication Services Ltd | 1 Abbeyfields Close, Southampton SO31 5GR | 02380 454 455 | |
| Jga Enterprises Ltd | 5, phoenix lane, fernwood, newark NG24 3UA | 07920022440 | |
| JHCS Ltd | 27-29 Kirkgate, Newark NG24 1AD | 01636 682244 | |
| JHL Communications Ltd | 16 Fitzroy Place, Sauchiehall Street, Glasgow G3 7RW | 0141 572 1624 | https://www.jhlcomms.com/ |
| Jido Ltd | The Dock, Wilbury Villas, Hove BN3 6AH | 01273830333 | |
| Jim McCarthy | Unit 1G, South Hams Business Park, Churchstow, Kingsbridge TQ7 3QH | 01548312888 | |
| Jimico Ltd | Barleycroft,, Hemsby, Great Yarmouth, Norfolk NR29 4NS | 01603 673160 | |
| Jireh Solutions Ltd | Unit 4d Hampton Street Industrial Estate, Tetbury GL8 8LD | 01666500311 | |
| Jitterbyte Software Development Ltd | Unit 5, Cross Business Park, Rockey Lane Aston, Birmingham B6 5RQ | 01212893434 | |
| JL Reg Net | 3 The Quadrant, Coventry CV1 2DY | 0844 391 3500 | |
| Jl Telephone Engineers Ltd | 96 Longfellow Close, Walkwood, REDDITCH B97 5HN | 01527450536 | |
| JLB IT Solutions Ltd | 103 Paxton Road, Fareham PO141AD | 01329 517380 | |
| JLCIT Ltd | Unit 1, 8 Blue Lion Place, London SE1 4PU | 08002922230 | |
| JLCom Ltd | Rolland House, Newbridge Industrial Estate, Clifton Hall Rd, Edinburgh EH28 8PW | 0844 257 0400 | |
| Jmd IT Services Ltd | New Douglas Park, Cadzow Avenue, Hamilton ML3 0FT | 01357 578 459 | |
| JMV Solutions Ltd | Benedicts Bridge, Liverton, Newton Abbot TQ12 6HQ | ||
| Jns Telecom Ltd | 36 Court Parade East Lane, Wembley HA0 3HS | 02030266980 | |
| John Graham Construction Ltd | 5 Ballygowan Road,, Hillsborough, County Down BT26 6HX | 02892681778 | |
| John Lewis Broadband | The Balance, 2 Pinfold Street, Sheffield S1 2GU | 0800 022 3300 | https://www.johnlewisbroadband.com/ |
| John Pemberton | 43 Sylvan Av, Birmingham B31 2PG | 01216433220 | |
| John Ramsey | 35 Croft Avenue, Carnlough, Ballymena BT44 0EN | 02828885644 | |
| Johnson Technical Systems Ltd | Unit 201 - Waterhouse Business Centre, 2 Cromar Way, Chelmsford CM1 2QE | 01277 888799 | |
| Join5g Telecommunications Laboratories Ltd | 1 Northumberland Avenue, Trafalgar Square, London WC2N 5BW | 02031030240 | |
| Join-IT Ltd | 26 Bridge Road East, Welwyn Garden City AL7 1HL | 02034688180 | |
| JOKG Ltd | Victoria House, 2 Grove Road, Fareham PO16 7TE | 02380000088 | |
| JOLA Cloud Solutions Ltd | Cambridge House, 16 High Street, Saffron Walden, Essex CB10 1AX | 0115 888 2585 | |
| Jp Broom Ltd | 18 Newgate, Stevenage SG2 9DS | 07557996038 | |
| JPC InfoNet Ltd | Suite 2 Bryer Ash Business Park, Bradford Road, Trowbridge, Wiltshire BA14 8AW | 01225 77655 | |
| JPS Technical Services LTD | 28 Cathedral Road, Cardiff CF11 9LJ | 02921510260 | |
| JPTF Services Ltd | 6B Belgic Square, Peterborough PE1 5XF | 01733 563900 | |
| JRW Developments | 11 Westfield Drive, Worksop S81 0JS | 01909 484 511 | |
| Js Comms Ltd | America House, Rumford Place, City Centre, Liverpool L3 9DD | 01244 757192 | |
| Js Solutions Ict Ltd | 4 Cyrus Way, Cygnet Park, Peterborough PE7 8HP | 01733667755 | |
| JSL Computers | The Old Post Office, Wycombe Road, Studley Green,High Wycombe, Buckinghamshire HP14 3XA | 01494 410777 | |
| JT (Global) Ltd | PO Box 53, No 1 The Forum, Grenville Street, St Helier, Jersey JE4 8PB | 020 7920 2000 | https://www.jtglobal.com/ |
| JT (Guernsey) Ltd | 24 High Street, St Peter Port, Guernsey GY1 2JU | 01481 882882 | https://www.jtglobal.com/ |
| JT (Jersey) Ltd | PO Box 53, No 1 The Forum, Grenville Street, St Helier, Jersey JE4 8PB | 01534 882882 | https://www.jtglobal.com/ |
| Jt Strategic Consultants Ltd | 4 Taylor Close, Harlow CM20 2NW | 07896752982 | |
| J-Taku Ltd | 133 Larcombe Road, St Austell PL25 3EY | 07833495319 | |
| Jtec IT Solutions | 5 Carndale Meadows, Ballymena BT43 5NX | 028 2563 1767 | |
| Jtec UK Ltd | 15 Hunts Mill Crispin Place, Wallingford, Oxon OX10 0DR | https://jtechltd.com/ | |
| J-Tech Systems Ltd | 26 Breakfield, Coulsdon CR5 2HS | 0203 326 7329 | |
| JTML.com | Clomar House, Jubys Hill, Witnesham, Ipswich IP6 9EN | 01473 286666 | |
| Jtrs Ltd | 7 St Petersgate, Stockport, Cheshire, Stockport SK1 1EB | 03302230500 | |
| Juddo Ltd | 31 Rutley Close, London SE17 3NP | 020 3239 6688 | |
| Juice Telecoms Ltd | 33 King Street, Norwich NR1 1PD | 0844 357 1111 | |
| Julian Barnett | Brook Fields Close, Bromsgrove B60 1EP | 0845 475 0050 | |
| Junction Computers LTD | Unit 4C Woodley Park Estate, Reading Road, Woodley, Reading RG5 3AW | 01189268585 | |
| Jungle IT Ltd | 2 Feast Field, Horsforth, Leeds LS18 4TJ | 0113 258 4433 | |
| Jungle Networks Ltd | The Granary, 4 Stebbing Farm, Fishers Green, Stevenage, Hertfordshire SG1 2JB | 07973 164 628 | |
| Juno Corporation Ltd | 10A Frankham House, Frankham Street, London SE8 4RL | 09752 590520 | |
| Jurassic Fibre Ltd | Sowton Business and Technology Centre, Capital Court, Bittern Road, Sowton, Exeter EX2 7FW | 01392 345600 | https://jurassic-fibre.com/ |
| Just Call | http://www.justcall.co.uk/ | ||
| JUST IT Computer Services Ltd | 41 Buttercup Road, Desborough, Northamptonshire NN142JP | 01536765687 | |
| Just Networks UK Ltd | 28 Yarm Road, Stockton on Tees TS18 3NG | 01642 888899 | |
| Just Utilities Ltd | Gibson House, Gibson Road, Hemswell Cliff, Gainsborough, Lincolnshire DN21 5TL | 01427 800 310 | |
| Just Voice & Data Ltd | 105 Hall Street, Hamilton ML3 6RY | 01698 897 475 | |
| Just2Connect Ltd | 2 The Cottage, Archive Mews, Kingshill Way, Berkhamsted HP43TN | 01442573030 | |
| Just-Dial Instant | PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY | 033 3321 8705 | http://www.just-dial.com/ |
| Jutel Ltd | Suite G, Quadrant House, 31-65 Croydon Road, Caterham, Surrey CR3 6PB | 03330069696 | |
| JW and M Clarke | Unit 15, Harlescott Barns, Harlescott Lane, Shrewsbury SY1 3SZ | 01743 442 376 | |
| K Lowther & Co Ltd | 18 Middle Hillgate, Stockport SK1 3AY | 0161 480 7385 | |
| Kaizen Telecom Ltd | 2-6 Townend Road, Sheffield S35 9YY | 0845 141 1401 | |
| Kalamath Consultancy Ltd | Thistle House, Inchinnan Road, Paisley PA3 2RE | 01415309460 | |
| Kalnet4u Ltd | 81 St Modwen Road, Parkway Ind Estate, Plymouth PL6 8LH | 01752 548143 | https://www.tamartelecommunications.co.uk/ |
| Kanj Technologies Ltd | Unit 5, Waverley Industrial Estate, Hailsham Drive, Harrow HA1 4TR | 020 3056 7531 | |
| Kanzen Solutions | sheepfield close, little sutton CH66 1HP | 01513481166 | |
| Kaptec Telecoms Services Ltd | 49 London Road, Maidstone, Kent ME16 8JE | 00 353 94 904 8900 | |
| Karma Computing Ltd | 20 Brady & Martin Court, Northumberland Road, Newcastle upon Tyne NE1 8SG | 020 3095 1759 | |
| KAT Communications Ltd | 1, Watervole Way, Doncaster DN4 5JP | 01302260195 | https://www.katcommunications.co.uk/ |
| Kazzoo Ltd | 18 Moat Street, Leicester LE18 2GD | 0844 3729893 | |
| KBS Communications | |||
| KCOM Group PLC | 37 Carr Lane, Hul, HU1 3RE | 01482 602100 | https://www.kcomplc.com/ |
| KCS Total Solutions Ltd | Unit 2 Heron Business Park, Eastham Way, Hemel Hempstead, Hertfordshire HP2 7DU | 01442 251 514 | |
| KDDI Europe Ltd | Atlas House, 1 King Street, London, EC2V 8AU | 020 7507 0001 | https://www.kddi.com/english/ |
| Keba Computer Services Ltd | Unit 4 Baird Close, Daventry NN11 8RY | 01327300311 | |
| Keeley Travis Business Solutions Ltd | Canal Side Lodge, George Street, Failsworth, Manchester M35 9BW | 0161 683 4247 | |
| Keen IT Solutions Ltd | Unit 8, St George Industrial Estate, Wilton Road, Camberley, Surrey GU15 2QW | 01276 818461 | |
| Kelsey Networks Ltd | 18 Bold Street, Warrington WA1 1HP | 01925 231 482 | |
| kelway UK Ltd | 10 Fleet Place, London EC4M 7RB | 020 7791 6000 | |
| Kencomp Internet Ltd | Kerian House, 64 Stramongate, Kendal, Cumbria LA9 4BD | 01539 898 145 | |
| Kensington Steele Ltd | Hilton House, Lord Street, Stockport, Cheshire SK1 3NA | 0161 241 1679 | |
| Kent CCTV & Data Ltd | UNIT 3F, REAR of 2-4 HIGH STREET, WEST MAILING ME19 6QR | 0800 6126714 | |
| Kent IT Maintenance LTD | Chart Hills Golf Club, Weeks Lane, Biddenden, Kent TN27 8JX | 01580 761456 | |
| Kent Laptops Ltd | Unit 49 John Wilson Business Park, Harvey Drive, Whitstable CT5 3QY | 01227200321 | |
| Kent MSP | 33 Tritton Fields, Kennington, Ashford TN24 9HE | 07887731811 | |
| Kent PCs | Rosedene, Canterbury Road, Challock, Ashford TN25 4DW | 01233 740306 | |
| Kent Tec | 351 Northdown Road, Margate, Kent CT9 3PB | 01843 232777 | https://kenttec.co.uk/ |
| Kent Technologies Ltd | 351 Northdown Road, Margate, Kent CT9 3PB | 01843 232 777 | |
| Kenton Research Ltd | Innovation House, Unit 19 Bourne Ind Park, Crayford, Kent DA1 4BZ | 01322 552000 | |
| Kenwood Electronics UK | https://www.kenwood-electronics.co.uk/ | ||
| Keolia Ltd | The Balance, Floor 7 Pinfold Street, Sheffield S1 2GU | 0800 652 0589 | |
| Kerchan Ltd | 92 The Crestway, East Sussex, Brighton BN1 7BN | 01273 311300 | |
| KES | Unit 7 Kilnbridge Works, Lower Road, East Farligh ME15 0HD | 01622 524160 | |
| Kesher Communications Ltd | 21 Rochester Avenue, Prestwich, Manchester M25 0LF | 0161 820 8353 | http://www.keshercommunications.com/ |
| Kestrel IT Ltd | Unit 3 Severnside, Brue Avenue, Colley Lane Ind Est, Bridgwater TA6 5LT | 01278411980 | |
| Keswick Computer Services Ltd | 5 Packhorse Court, Keswick, Cumbria CA12 5JB | 017687 75526 | |
| Kevin James Ltd | 16 Seax Court, Southfields Industrial Estate, Basildon, Essex SS15 6BB | 01268 546 594 | |
| Kew Solutions IT Ltd | 25 Great Bowden Road, Market Harborough LE16 7DE | 07811349593 | |
| Key Computer Applications Ltd | Cavan House, Ellesmere Street, Leigh, Greater Manchester WN7 4LQ | 01942 261 671 | |
| Key Skills | Staple Barton, Torrington EX38 8JD | 01805 628060 | |
| Key Solutions Ltd | 5 Clifton Square, Lytham, Lytham St Annes, Lancashire FY8 5JP | 01253 731 888 | |
| Key Tech Services Ltd | 9 Boundary Farm Road, Leeds LS17 5JA | 07860250039 | |
| Key Telecoms Ltd | The Old County Police Station, Newhey Road, Milnrow, Lancas OL16 3PS | 0161 353 2000 | https://www.keytelecoms.co.uk/ |
| KEY2 Computer Services Ltd | 2 The Courtyard, Penkridge, Staffs, Staffordshire ST19 5DE | 01785 719097 | |
| Keyfort Ltd | 6 Stratfield Saye, 20 - 22 Wellington Road, Bournemouth BH88JN | 08448014580 | |
| Keystone IT Ltd | Unit 3 Byron Business Centre, Duke Street, Hucknall, Nottingham NG15 7HP | 01158249777 | |
| Keysystems EC2 Ltd | 7 Cuckoo Hill Road, Pinner, Middlesex HA5 1AS | 020 8866 5698 | |
| Keytech Networks Ltd | Barttelot Court, Barttelot Road, Horsham, West Sussex RH12 1DQ | 01403 620 600 | |
| Keytel Direct Ltd | The Levels, Redbrook Lane, Rugeley, Staffordshire WS15 1RD | 0844 669 3666 | |
| Khalil Telecom Pvt | |||
| Khan Systems Ltd | 292a chapter road, London NW2 5NE | 07881552537 | |
| Khodtech Ltd | 37th Floor, One Canada Square, Canary Wharf, London E14 5AA | 02035880009 | |
| Kia Fire Safety Ltd | 236 Wharf Road, Ealand, North Linconshire DN17 4JN | 01724 711 280 | |
| Kick Ict Group Ltd | Solais House, Bellshill Industrial estate, Bellshill ML4 3NJ | 03450349600 | |
| Kiiro Ltd | 131 Lichfield Street, Walsall WS1 1SL | 0121 796 6778 | |
| Kijoma Broadband | http://www.kijoma.net/tiki-view_articles.php/ | ||
| Kimcell Ltd | Gild House, Norwich Avenue West, Bournemouth BH2 6AW | 01202755375 | |
| Kinetic Internet Ltd | Kinetic Internet Limited, Lodge Park, Lodge Lane, Langham, Colchester CO4 5NE | 01702 808957 | https://www.kinetic-internet.co.uk/ |
| King Comms | 145-157 St John Street, London EC1V 4PW | 02892 646 097 | |
| Kingsley Networks | 12 fairview drive, Watford WD17 4ST | ||
| Kingstar Services Ltd | 23 Richmond Road, Southampton SO15 3FT | 02381 157731 | |
| Kingston Technologies Group | https://www.ktgl.co.uk/ | ||
| Kingston Telecom Solutions Ltd | 5 Kew Road, Richmond TW9 2PR | 02035516600 | |
| Kinspeed Ltd | Albion House, Ravenshorn Way, Renishaw, Sheffield S21 3WY | 01246 437 000 | |
| KIPCOM Ltd | Maritime House, Kingston Street, Hull HU1 2DB | 01482 238 328 | |
| KIS Technologies Ltd | 86-90 Paul Street, London EC2A 4NE | 02038794784 | |
| Kiss Telecom Ltd | (dissolved February 2011) | ||
| Kits (Hull) Ltd | 21, Marina Court, Castle Street, Hull HU1 1TJ | 01482429800 | |
| Kiwi IT Solutions Ltd | Unit 8 Darwin House, Innovation Centre, Pensnett Estate, West Midlands, Kingswinford DY67YB | 08432249301 | |
| Kiwi Voice And Data Ltd | Surrey House, 196 Barnett Wood Lane, Ashtead, Surrey KT21-2LW | 03330-110490 | |
| Kixo Ltd | 5 Sycamore Court, Birmingham Road, Allesley, Coventry CV5 9BA | 02476920500 | |
| Kliker IT Services Ltd | New House, South Grove, Petworth GU280ED | 08455442033 | |
| KM IT Solutions Ltd | 31-35 Kirby Street, London EC1N 8TE | 02032827111 | |
| KMW IT Services | Mayview, Street End Lane, Broadoak, Heathfield TN218TS | 01435862622 | |
| knect IT Ltd | 13 Sampson Close, Collingwood Manor, Morpeth NE612FN | ||
| Knight ICT | 15 Medwin Street,, Clapham North, London SW4 7RT | 07947565585 | |
| Knight IT Group Ltd | 354 Mare Street, London E8 1HR | 07789549453 | |
| Knowall IT Ltd | 18 Spring Street, London W2 3RA | 0844 264 1109 | |
| Knowledge Generation Bureau (jgb) | 655 Madison Avenue, New York, NY 10065, USA | https://www.kgb.com/ | |
| Known Communications Ltd | (dissolved May 2011) | ||
| Koala IT Ltd | 11 Boundary Business Park, Garsington, Oxford OX44 8EJ | 01993 650213 | |
| Kogo Ltd | Unit 1 Charlwoods Road, East Grinstead RH19 2HG | 01342333000 | |
| Kohima Consultants Ltd | Leigh House, 28-32 St Pauls Street, Leeds LS1 2JT | 0845 450 6161 | https://www.kohimacl.com/ |
| Koicoms Ltd | 160 Hope Street, Glasgow G2 2TJ | 0141 433 1265 | |
| Komputer Consultancy Services Ltd | 8 Chess Business Park, Chesham HP5 1SD | 01494773722 | |
| Konnectiv Technology Ltd | 3 Blackburn Road, Sheffield S61 2DW | 01142997986 | |
| Koris Ltd | 1 Poultry, London EC2M 8JR | 0845 094 8484 | |
| Kraft Telecom Ltd | 27 Old Gloucester Street, London WC1N 3AX | 0800 112 0096 | |
| Krome Technologies | 246 Station Road, Addlestone, Surrey KT15 2PS | 01932 232 345 | |
| KromeTech | Krome House, 246 Station Road, Addlestone KT15 2PS | 01932 232345 | |
| Krypton Global Networks Ltd | Lincoln Building, Eckland Lodge Business Park, Market Harborough LE16 8HB | 08000420999 | |
| Krypton IT Solutions Ltd | , Unit 4, Kibworth Business Park, Leicester LE8 0EX | 01858791122 | |
| KS Services Ltd | Prince William House, 3 Clifton Villas, Bradford BD87BY | 01274 772244 | |
| KSD Communications LLP | Patcham Place, London Road, Brighton BN1 8YD | 01273 559 293 | |
| KSL Connect | https://www.kslconnect.co.uk/ | ||
| KSM Telecom | 1A St Hermans Road, Hayling Island, Hampshire PO11 9NA | 02392 290 500 | |
| Kube Network Services Ltd | Building 4000, Academy Park, Gower Street, Glasgow G51 1PR | 0844 873 4488 | |
| Kube Networks Ltd | Building 4000, Academy park, Gower Street, Glasgow G51 1PR | 0844 873 4488 | |
| Kuiper Technology Ltd | Unit 4 Leaford Way, Leaford Road, Kitts Green, Birmingham B33 9TX | 0121 389 5080 | |
| Kyonet-It Ltd | 6 Stafford Park, Telford TF3 3AT | 0333 101 0000 | |
| L A Comms Ltd | Ribble Court, 1 Meadway, Padiham BB12 7NG | 0844 776 7564 | https://www.lacomms.com/ |
| L.E.A.D Services Ltd | Wyvern Court, Wyvern Business Park, Stanier Way, Derby DE21 6BF | 01332861956 | |
| L.UK/Euro (Brighton) Ltd | Broseley House, 81 Union Street, Oldham OL1 1PF | 0161 622 1845 | |
| L2MC Ltd | Beech House, 35 Beech Avenue, Radlett WD7 7DD | 0800833599 | |
| LA Connect Ltd | 39/40 The Arches, Alma Road, Berkshire SL4 1QZ | 01753 625 111 | |
| LA ICT Services Ltd | C/O Baldwin Gravestock & Owen Limited, St David's Court, Union Street, Wolverhamption WV1 3JE | 01922211600 | |
| Laboc Communications Ltd | Clarion Lodge, West Chevin Road, Menston, Leeds LS29 6BG | 07507068191 | |
| Labtech Systems Ltd | 1 Lislaynan, West St, Ballycarry, Carrickfergus BT38 9GZ | 07711821012 | |
| Labyrinth Computers Ltd | Unit 3, Lufton Heights Commerce Park, Boundary Way, Yeovil BA22 8UY | 01935 421299 | |
| Labyrinth Technology Ltd | 184 Lower Road, Surrey Quays, London SE16 2UN | 02030029603 | |
| Ladarnas Ltd | 8 Rutland Square, Edinburgh EH1 2AS | 01312300160 | |
| Ladybird Communications Ltd | Unit 3, 2 Laureate Paddocks., Newmarket CB8 0AP | 01638 640000 | |
| Ladybird Voice Solutions Ltd | The Latton Bush Centre, Southern Way, 2 Laureate Paddocks, Harlow CM18 7BL | 01279 268268 | |
| Lagan Communications Ltd | Forsyth House, Cromac Square, Belfast BT2 8LA | 02890511240 | |
| Lake Technologies Ltd | Inspiration House, 21 De Havilland Drive, Estuary Business Park, Liverpool L24 8RN | 0151 432 5600 | |
| Lakul Communications Ltd | JVF House, 76 Leicester Road, Mountsorrel, Loughborough LE12 7AN | 01162964898 | |
| Lambit Ltd | Hill View, Pound Lane, Donyatt, Ilminster TA19 0RR | 07917620397 | |
| LAN Support Ltd | Stonebridge House, Catteshall Road, Godalming, Surrey GU7 1NJ | 01483 413 360 | |
| Lancashire County Council | Lancashire County Council, PO Box 78 County Hall, Fishergate, Preston PR1 8XJ | 0300 123 6701 | |
| Lancaster University Network Services Ltd | Lancaster University Network Services Ltd (LUNS Ltd), Infolab21, Bailrigg, Lancaster, Lancashire LA1 4WA | 08450 505550 | |
| Lancehawk Ltd | 11a Regent Street East, Briton Ferry, Neath SA11 2RR | 01639-814800 | |
| Unitel Utilities Ltd | The Catalyst York Science Park Baird Lane York YO10 5GA | 0333 577 0600 | |
| Landmark Technologies (UK) Ltd | 4 Lombard St, London EC3V 9HD | 02079777707 | |
| Lanix UK Ltd | 6 The Metro Centre, St Johns Road, Isleworth, Middlesex TW7 6NJ | 020 8232 8008 | |
| Lanmark Technical Services Ltd | Warnford Court, 29 Throgmorton Street, London EC2N 2AT | 020 7947 9656 | |
| Lanonyx Telecom Ltd | Office 3, 111 Piccadilly, Manchester M1 2HX | 0844 740 7450 | https://www.lanonyx-telecom.com/ |
| Lansafe Ltd | East Quarry, Appley Lane North, Appley Bridge, Wigan WN6 9AE | 01257 758222 | |
| Lansalot Ltd | Securehold Business Centre, Studley Road, Redditch B98 7LG | 01527908316 | |
| Lansdowne Telecom Ltd | 3 Bowood Close, Derry Hill, Calne, Wilts SN11 9QZ | 0845 241 1166 | http://www.lansdownetelecom.co.uk/ |
| LAN-Serve IT Solutions Ltd | The Innovation Centre, Norden House, Basing View, Basingstoke, Hants RG21 4HG | 0845 453 0101 | |
| LANtec Services Ltd | 381 Carlton Hill, Nottingham NG4 1HW | 0844 844 0660 | https://www.lan-tec.co.uk/ |
| Lantec Systems | 4 The Studios, 322 Chorley Old Road, Bolton, Lancashire BL1 4JU | 01204 467 440 | |
| Lanway Coporate Business Systems Ltd | Bridgewater Close, Network 65 Business Park, Hapton BB11 5TE | 01282 418 888 | |
| Lanworks IT Services Ltd | 13 Robjohns Road, Chelmsford CM13AG | 01245 251500 | |
| Larch Computer Services Ltd | Unit 3 Compton Place Business Centre, Surrey Avenue, Camberley GU15 3DX | 08452609040 | |
| Larrytech Ltd | Calverley House, 55 Calverley Road, Tunbridge Wells TN1 2TU | 01892 888 011 | |
| LARS Communications | https://www.lars.co.uk/ | ||
| Lascom Communications | Second Floor, One Crown Square, Church Street East, Woking, Surrey GU21 6HR | 0870 890 1156 | http://www.lascom.co.uk/ |
| Lascom Solutions Ltd | North Wing, Barmere House, Bickley, Whitchurch SY13 4HH | 08444127009 | |
| Lastnet Ltd | Enterprise Zone, 210 Portobello, Sheffield S1 4AE | 0114 3210300 | |
| Launceston College | Hurdon Road, Launceston, Cornwall PL15 9JR | 01566 772 468 | |
| Laurel Consultancy Services Ltd | 20 Main Road, Washingborough, Lincoln, Lincolnshire LN4 1AT | 01522 718 396 | |
| Law & You Consultancy Ltd | 5-7 Pellow Arcade, 5 Teign Street, Teignmouth, Teignmouth TQ14 8EB | 01626 339009 | |
| Lawdeck Ltd | 86-90 Paul Street, London EC2A 4NE | 07961448432 | |
| Laws Hosting | Flat 12 Clover Court, 280 Scotland Green Road, North Enfield, Middlesex EN3 4SE | 0333 112 6288 | |
| Lawson Park LLP | The Oakley, Kidderminster Road, Droitwich WR9 9AY | 08432898230 | |
| Lawyers On Line Ltd | Hereford House, 3 Offa Street, Hereford, Herefordshire HR1 2LL | 0845 388 6891 | |
| Layer3 Data Services Ltd | Vicar Lane, Sheffield S1 2EX | 01142238332 | |
| LBTS Ltd | 117 Preston Grove, Yeovil BA20 2DB | 01935410377 | |
| LCC Communications Ltd | Pragnell House, Sopwith Close, Preston Farm Industrial Estate, Stockton-on-Tees TS18 3TT | 0800 6522256 | http://www.lcccommunications.com/ |
| Lcs Group Ltd | Riverside House, 1 Alexandra Road, Grimsby DN31 1RD | 01472501234 | |
| LDE SmartAlarms Ltd | The Stables, Braydon Manor, Braydon, Swindon SN5 0AG | 01666 800800 | |
| Le Noir Coms Ltd | 2 Elizabeth Road, Marlow SL73JQ | 01628308700 | |
| Leadgen Uk Marketing Ltd | 130 Old Street, London, London EC1V 9BD | 02034780701 | |
| Leading Edge Technology Ltd | 5 The Atrium, 31 Church Road, Ashford, Middlesex TW15 2UD | 08456 447 949 | |
| LeadTec Ltd | Eventus, Sunderland Road, Market Deeping, Peterborough PE6 0HL | 01733600700 | |
| Leaf Consultancy Ltd | 17a Weavers Court, Linfield Road, Belfast BT12 5GH | 028 9089 7650 | |
| Leanwood Communications Ltd | Bath Road, Slough, Berkshire SL1 4DX | 01753 360151 | |
| LEARNING DIGITAL CIC | 113 The Green, Welling DA16 2PB | 07779 481654 | |
| Legend | https://legendtelecom.co.uk/ | ||
| Legend Telecom Ltd | 167-169 Sunbridge Road, Bradford BD1 2HB | 01274288222 | |
| Legendary Internet LTD | Granville Hall, Granville Road,, Leicester LE17RU | 07894053027 | |
| Leisure Link Group Ltd | 3 The Maltings, Wetmore Road, Burton-on-Trent, Staffordshire DE14 1SE | 01283 512777 | |
| Leisure Park Internet Solutions LTD | 5 Greengate, Cardale Park, Harrogate HG3 1GY | 01423 295001 | |
| Lemon Computing Ltd | Unit 9, 26-28 Priests Bridge, London SW14 8TA | 020 8878 2138 | |
| Leon World UK Ltd | 39 Barling Road, Barling SS30QD | 07538824617 | |
| Lets Just Do IT Ltd - | 4 Upper Mulgrave Road, Cheam, Surrey SM2 7AZ | 08445 430900 | |
| Leversedge Telecom Services | https://www.leversedge.co.uk/ | ||
| Leverstock Ltd | 17 Avebury Court, Mark Road, Hemel Hempstead, Hertfordshire HP27TA | 01442800800 | |
| Levi Telecommunications Ltd | 203 Timberlog Lane, Near Vange, Basildon SS14 1PB | 0845 504 8778 | |
| Liberation Telecom Ltd | 237 Glenhills Blvd, Leicester LE2 8UJ | 07908557295 | |
| Liberty Computer Services Ltd | 3 Challenger Way, Edgerley Business Park, Peterborough PE1 5EX | 01733 302970 | |
| Liberty Global PLC | 38 Hans Crescent, London SW1X 0LZ | 020 7190 6300 | https://www.libertyglobal.com/ |
| Liberty i-zone | http://www.liberty-izone.com/ | ||
| Liberty Solutions (Swansea) Ltd | 11 Pyle Road, Swansea SA3 3HH | 03303 337300 | |
| Liberty-Izone Ltd | Rivendell House, 10 Church Road, Guildford, Surrey GU1 4NG | 0870 243 0465 | |
| Lifeline Communication Services Ltd | The Innovation Centre,, Festival Drive, Ebbw Vale NP238XA | 08458692183 | |
| LifestyleIT Ltd | 106 High Street, Harrow on the Hill, Middlesex HA1 3LP | 020 8423 2244 | |
| Lightning Fibre Ltd | Suite 24, 1 Commercial Road, Eastbourne BN21 3XQ | 01323380260 | |
| Lily Communications Ltd | Unit 3, Headway Business Centre, Knowles Lane, Bradford BD4 9SN | 0843 507 1111 | |
| Lily Systems Ltd | Bedders Lodge, Leicester Lane, Great Bowden, Leicestershire LE16 7HA | 01858 450441 | |
| Lima Solutions | http://www.limasolutions.co.uk/ | ||
| Limbtec Ltd | 77 Erlstoke Close, Eggbuckland, Plymouth PL6 5QN | 01752 546 967 | |
| Limitless Mobile Ltd | Commencement of winding up 10 November 2016 | ||
| Limpio Office Solutions Ltd | 5 East Park, Crawley RH10 6AN | 08452412007 | |
| Linc Telecom Ltd | 7 Merevale, Dinas Powys, Vale of Glamorgan, Cardiff CF64 4HS | 02920098000 | |
| Linctel Ltd | 12 Hillsway Cres, Mansfield, Notts NG18 5DS | 0845 331 3200 | https://www.linctel.com/ |
| Line UK Internet Ltd | Unit 33, 10 Barley Mow Passage, Chiswick, London W4 4PH | 03300 882 884 | |
| Lineal Software Solutions Ltd | Unit 7 Riverside Court, Castle Street, Barnstaple, Devon EX31 1DR | 01271 375 999 | |
| Linear Telecoms Ltd | Unit 70 The Base, Dartford Business Park, Victoria Road, Dartford DA1 5FS | 020 8114 9849 | http://lineartelecoms.com/ |
| lineUP Networks Ltd | Unit 6, Eversden Court, Salford M7 1AY | 01618060806 | |
| Linix Ltd | Unit 88, Venture Point West, Liverpool L24 9PB | 0870 838 0700 | |
| Link Broadband | 3a Prestige House, North Shields NE296QU | 07984942899 | |
| Link Cloud Solutions Ltd | Hounds Rest, 5 Limpenhoe Road, Reedham, Norwich NR13 3HS | 01603964288 | |
| Link Connect Services Ltd | Frensham House, Farnham Business Park, Weydon Lane, Farnham, Surrey GU9 8QT | 01252 740 800 | |
| Link Ip Networks Ltd | 20-22 WENLOCK ROAD, London N1 7GU | 0161 826 2464 | |
| Link Mobility UK Ltd | 1C Alba Pavilions, Livingston EH54 7HG | 01506 605260 | https://linkmobility.co.uk/ |
| Link-Connect Services | https://www.link-connect.com/ | ||
| Linked Comms Ltd | 85 Great Portland Street, London W1W 7LT | 01273 256956 | |
| LinkedUp Communications Ltd | Hill Quays, 14 Commercial St, Manchester, Manchester M15 4PZ | 01613272969 | |
| Linknet Communications Ltd | 16 Torgate Lane, Bassingham, Lincoln, Lincoln LN5 9HF | 08453881712 | |
| Linkorg Networks Ltd | 2 kings road, Chalfont St Giles HP8 4HU | 02033998399 | |
| Links Business Solutions Ltd | 11 Boston Road, Glenrothes KY6 2RE | 01592 770751 | |
| Link-Tel Communications | https://twowayradio.co.uk/ | ||
| Linkup Comms & Data Ltd | Churchgate House, Churchgate, Bolton BL1 2RF | 01204528756 | |
| LinkUP Mitaka - T/A The Big Word | |||
| LinkUp Technology Ltd | Unit 9 Whitwick Business Centre, Stenson Road, Coalville, Leicester LE67 4JP | 01158240042 | |
| Linkup Telecoms & IT Ltd | 32-26 Chorley new road, bolton BL1 1HL | 01204528756 | |
| Linten Technologies Ltd | 792 Wilmslow Road, Manchester M20 6UG | 0800 612 7125 | https://www.linten.co.uk/ |
| Linx Telecom Ltd | Unit 14, Darlaston Central Trading Estate, Wednesbury WS10 8XB | 01216951067 | |
| Lion House (UK) Ltd | 1 The Granary, Court Lodge, Horton Road, Horton Kirby, Dartford DA4 9BN | 01322 868606 | |
| Liongate electronics ltd | 27 Trevelyan Crescent, Middlesex HA30RN | 02083571468 | |
| Lipo Experts Ltd | 37 Kew Road, Richmond TW9 2NQ | 02083321019 | |
| Liquid 11 Ltd | Sea Lake Road, Lowestoft, Suffolk NR32 3LQ | 020 7856 0433 | https://www.liquid11.co.uk/ |
| Liquid Telecommunications Ltd | 1 Kingsway, London WC2B 6XF | 0845 241 4252 | |
| Liquid Voice Ltd | Matrix House, Goodman Street, Leeds LS10 1NZ | 0113 200 2020 | |
| Lister Comms Ltd | Sandwell Industrial Estate, Spon Lane South, Smethwick B66 1QJ | 0121 553 2411 | |
| Lister Communications Ltd | Brunel Way, Stonehouse, Gloucester GL10 3SX | 01453 829 200 | https://www.lister-communications.co.uk/ |
| Litenet Ltd | 19, Ashgrove Gardens, Whitchurch, Aylesbury HP22 4JL | 07967577427 | |
| Lithium Systems Ltd | Unit 5 Block 7, Cooperage Way Business Village, Alloa FK10 3LP | 01259 727847 | |
| Liugo Ltd | Liugo Ltd, Endeavour House, Saville Road, Peterborough PE3 7PS | 07756629251 | |
| LIV Unified Comms LTD | 179 Parr Lane, Unsworth, Bury, Lancs BL98JW | 01613597020 | |
| Live WiFi Ltd | Liverpool Science Park,ic1, 131 Mount Pleasant, Liverpool L3 5TF | 08451306246 | |
| LIVEWIRE | 87-89 Chapel Street, Salford, Manchester M3 5DF | 0870 750 760 | |
| Livewire Digital Ltd | Units 1 & 2 The Axis Centre, Cleeve Road, Leatherhead KT22 7RD | 01372 386100 | |
| Livewire Telecom t/as c cirillo | 87/89 Chapel Street, Salford M3 5DF | 07904007007 | |
| Livvys Consultants Ltd | Matrix House, Basing View, Basingstoke, Hampshire RG21 4DZ | 0333 240 4000 | |
| Lizardstudio Ltd | Weston, Herne Road, Crowborough TN6 2NX | 01892 801509 | |
| LJT Systems Ltd | First Floor, 3 All Hallows Road, Bispham, Blackpool FY2 0AS | 01253966060 | |
| LKS Communications Ltd | 7 School Walk, Papworth Everard, Cambs CB23 3XW | 07790 498 850 | |
| LL Guru Ltd | 71-75 Shelton Street, London WC2H 9JQ | 02081233319 | |
| Lleida.net Serveis Telematics | |||
| Llewellyn Technical Services | Unit 52 Staughton Airfield Ind Est, Little Staughton, Bedfordshire MK44 2BN | 01234 376 848 | |
| Lloyd Bunday Consultants | 14St Cecilias Close, Kettering, Northants NN15 5HX | 01536 523842 | |
| Lloyd Technology Ltd | 20 Miller Street, Dumbarton G82 2JA | 0333 311 1002 | |
| Lloyds Business Communications Ltd | 109 Mere Grange, Elton Head Road, Leaside, St Helens WA9 5GG | 0844 855 0400 | |
| Lloyds Business Networks Ltd | 109 Mere Grange, Elton Head Road, Leaside, St Helens WA9 5GG | 0844 855 0400 | |
| Lloyds TSB Bank plc | Customer Care, Ideal from Lloyds TSB, PO Box 5875, Forres IV36 2YB | 0845 900 9000 | |
| Lloyds-IP (Communications) | https://www.lloyds-ip.co.uk/ | ||
| LLU Communications Ltd | Unit H, Gateway 1000, Whittle Way, Stevenage SG1 2FP | 02030263206 | |
| Lmc Technologies Ltd | Storage World, 40-46 Ashton Old Road, Manchester M12 6LP | 01617144400 | |
| Lmd Telecom Ltd | Suite 4, 48 Westgate, Skelmersdale WN8 8AZ | 07899849575 | |
| LMG Networks | Office 3 Margaret House, Huyton Road, Adlington PR7 4HD | 01257 786200 | |
| LMS Computer Services Ltd | Unit 2 The Sussex Business Village, Lake Lane, Barnham, West Sussex PO22 0AL | 0330 088 2565 | |
| LN Communications Ltd | Hangar 1, Southside Aviation Centre, Leeds Bradford International Airport, West Yorkshire LS19 7UG | 0845 643 5811 | |
| Local Expert Services Ltd | Unit 10b, CockRidden Industrial Estate, Brentwood Road, Brentwood CM13 3LH | 01708 203 040 | |
| Local Planet Solutions Ltd | The Building Design Centre, 125 Muir St, Hamilton, Lanarkshire ML3 6BJ | 01698 426143 | |
| Local Telecom Ltd | 1 Royal Terrace, Southend-on-sea SS1 1EA | 01702460200 | |
| Local Telecom Service Ltd | 2 Chessingham Court, George Cayley Drive, York YO30 4WQ | 01904 330 331 | |
| Local Voice and Data LTD | 2 Magnolia Way, Norwich NR8 5EH | 01603855122 | |
| Locall Communications Ltd | 20 Weymouth Drive, Biddick Woods, Houghton Le Spring DH4 7TQ | 08435572906 | |
| LocallNet Ltd | Piercefield Road, Formby, Liverpool L37 7DG | 0845 688 2999 | |
| Localphone Ltd | 4 Paradise Street, Sheffield S1 2DF | 033 3555 3555 | https://www.localphone.com/ |
| Locate-Group Ltd | Unit 33, The Business Exchange, Rockingham Road, Kettering, Northamptonshire NN16 8JX | 03330502389 | |
| Lochnet | 2 Woodgrove Drive, Inverness IV2 5HP | 01463630110 | |
| Lock 42 Ltd | 2-4 Frog Island, Leicester LE3 5AG | 0116 2230303 | |
| Lodge Information Services Ltd | 2a Gate Street, Maldon, Essex CM9 5QF | 01621 878 600 | |
| Logic 1st Ltd | Unit 4, William Booker Yard, The Street, Walberton, Arundel BN18 0PF | 01273 784900 | |
| Logic Business Systems Ltd | Logic House, Allenbrook Road, Rosehill Industrial Estate, CARLISLE CA1 2UT | 01228527676 | |
| Logical Focus Ltd | |||
| Logical Microsystems | 538 Great Horton Road, Bradford, West Yorkshire BD7 3HG | 01274 522131 | |
| Logicalis UK Ltd | 110 Buckingham Avenue, Slough, Berks SJ1 4PF | 01753 777 200 | |
| Logicomms Ltd | Office 1/2, 59 Main Street, The Village, Cumbernauld G67 2RT | 03452411305 | |
| Logics Technologies Ltd | 41 East Street Bromley BR11QQ Greater London, Bromley BR1 1QQ | 02030111987 | |
| LogicStar Ltd | |||
| LogicTel Ltd | 209 Grindley Lane, Blythe Bridge, Stoke on Trent ST11 9JS | 07779 219078 | |
| Logix Business Software Ltd | Conavon Court, 12 Blackfriars Street, Manchester M3 5BQ | 0161 669 4671 | |
| Logixal Document Solutions Ltd | 17a Micawber Street, London N1 7TB | 02070140100 | |
| Loho Ltd | 141 Kings Hedges Road, Cambridge CB4 2PL | 01223 750 165 | https://www.loho.co.uk/ |
| London Central Communications Ltd | 42 Southwark Street,London SE1 1UN | 020 3179 3179 | https://www.lcc.co.uk/ |
| London Computer Solution Ltd | Vixen House, Josephs Road, Guildford GU1 1DN | 01483599700 | |
| London Data Cabling Ltd | 10 Kennedy Close, London Colney, St Albans AL2 1GR | 02077900491 | |
| London Executive | 65 York Street, London W1H 1PQ | 0870 334 4550 | |
| London Facilities Ltd | |||
| London Fibre Group Ltd | 1, 57 HORNSEY LANE, HIGHGATE, LONDON N6 5LE | 07555428981 | |
| London Gateway Networks Ltd | Junction Lodge, Port of Tilbury, Tilbury, Essex RM18 7EH | 01375 363263 | |
| London Telephones NS Ltd | 37 Stanmore Hill, Stanmore HA7 3DS | 02071481120 | |
| London Voice and Data Exchange | |||
| London Web Ltd | Security House, Lismarrine Industrial Park, Elstree Road, Elstree WD6 3EE | 020 8349 4500 | |
| Long Range Systems UK Ltd | 1880 Link House, Leek Road, Stoke on Trent ST2 7AH | 01782 53 7000 | |
| Longfield Hospice | Burleigh Lane, Minchinhampton, Stroud GL5 2PQ | 01453886868 | |
| Lonsdale Network Services Ltd | Lowther, Penrith CA10 2HH | 01228 808002 | |
| Loop Network Services Ltd | Network House, Stubs Beck Lane, West 26, Cleckheaton BD19 4TT | 07827817027 | |
| Loop Scorpio | https://www.loopscorpio.net/ | ||
| LoopUp | https://www.loopup.com/ | ||
| Loud Mouth Phones Ltd | Unit 3, Shires House, Hussey Road, Battlefield, Shrewsbury SY1 3TE | 01743291731 | |
| Louis And Pal Ltd | International House, 12 Constance Street, London, London E16 2DQ | 07538676739 | |
| Louis Lobban | 6 Garfield Close, Eldene, Swindon SN3 6BZ | 07725759030 | |
| Louiscomm Networks Ltd | 49 Gildredge Road, eastbourne BN21 4RY | 01323411200 | |
| LSA Systems Ltd | 20 Radford Crescent, Billericay, Essex CM12 0DU | 0845 230 2940 | |
| Lte Telecommunication Ltd | 25 Scarr Lane, Shaw, Oldham, Manchester OL2 8HQ | 01270814814 | |
| LTT UK Ltd | Suite 315, 2 Old Brompton Road, London SW7 3DQ | ||
| Lucid Computer Solutions Ltd | Office 1&2 Midland Glass Works, Charles Street, Redditch, Worcs B97 5AA | 01527908646 | |
| Lucid IT Solutions Ltd | Suite 4 The Willows, Ransom Wood, Southwell Road West, Mansfield NG21 0HU | 0333 3208041 | |
| Lucid Networks (Contracts) Ltd | Greenheys Building, Manchester Science Park, Pencroft Way, Manchester M15 6JJ | 0800 862 0059 | |
| Lucid Systems Ltd | Felaw Maltings, 44 Felaw Street, Ipswich IP2 8SJ | 0845 452 0000 | |
| Lugo Ltd | 422 Baltic Chambers, 50 Wellington Street, Glasgow G2 GHJ | 0141 285 0900 | |
| Luke Derbyshire | 28 The Chase, Boroughbridge YO51 9JT | 07500787864 | |
| Luma-IT CIC | 5 Redwood Place, East Kilbride G74 5PD | 0141 611 5085 | |
| Lumic Ltd | 24 Peters Road, Chadwell St Mary, Essex RM16 4LA | 020 3301 3800 | |
| Lumina Technologies Ltd | 1 Marchmont Gate, Maxted Road, Hemel Hempstead HP2 7BE | 01442 500 890 | |
| Luminet Solutions Ltd | 2 Angel Square, London EC1V 1NY | 0207 400 6300 | |
| Luminite IT Services Ltd | Lymedale Business Centre, Hooters Hall Road, Newcastle-under-Lyme, Staffordshire ST5 9QF | 01782 454 128 | |
| Lux Communications Ltd | 145 OAKWOOD AVENUE, WAKEFIELD WF2 9JU | 01482429366 | |
| Lyca Home Ltd | Lyca Home Limited, 3rd Floor, Walbrook Building, 195 Marsh Wall, London E14 9SG | 020 7536 6450 ext 6354 | |
| Lycamobile | https://www.lycamobile.co.uk/ | ||
| Lycamobile UK Ltd | Walbrook Building, 195 Marsh Wall, London E14 9SG | 020 7132 0132 | https://www.lycamobile.com/ |
| LycaTalk | http://www.lycatalk.com/ | ||
| Lycatel Ltd | Walbrook Building, 195 Marsh Wall, London E14 9SG | 020 7101 2228 | http://www.lycatel.co.uk/ |
| Lycatel (Ireland) Ltd | Dominick Court, 41 Lower Dominick Street, Dublin D01 YX44, Ireland | +353 1 876 936556 | http://www.lycatel.co.uk/ |
| Lylacom Ltd | 15 Cowper Crescent, Colchester CO4 5XT | 02036336099 | |
| Lyonsdown | 10 A Millway, London NW7 3RE | 020 8906 9011 | |
| M & A Mckeag | 11 Windmill Business Park, Saintfield BT24 7DX | 02897510991 | |
| M 12 Solutions Ltd | 6 Manor Court, Barnes Wallis Road, Fareham, Hants PO15 5TH | 0845 408 1212 | |
| M T Voice And Data Ltd | 11 Milton Street, Maidstone ME16 8JT | 07884023324 | |
| M&M Information Technologies Ltd | March Road/King Street, Longton, Stoke on Trent, Staffordshire ST3 1HD | 01782 342 228 | |
| M12 Solutions | https://www.m12solutions.co.uk/ | ||
| M2 Technical Services Ltd | 18 Glebe St, Glasgow G4 0ET | 01415523877 | |
| M247 Ltd | Ball Green, Cobra Court, Manchester M32 0QT | 0161 615 1270 | https://www.m247.com/ |
| M247 Estates | https://www.m247.com/ | ||
| M3 Networks Ltd | Inveralmond Business Centre, Auld Bond Road, Perth PH1 3FX | 01738237001 | |
| M3st Ltd | 105 Great North Road, St Neots PE19 8EL | 01480471086 | https://www.m3st.co.uk/ |
| M4siz Ltd | 31 The Green, Writtle, Chelmsford CM1 3JE | 02082421788 | |
| M7 Managed Services Ltd | Unit 2, Cefn Coed Business Park, Nantgarw, Cardiff CF15 7QQ | 01443 657 100 | |
| M9 Holdings (IT) Ltd | Epworth House, 25 City Road, London EC1Y 1AA | 020 3667 8266 | |
| Mac Consultants Ltd | SE11 5JH | 020 7091 9999 | |
| Mac Event Telecoms | https://www.macsystems.co.uk/ | ||
| Mac Systems Ltd | Newlands House 3 Carmunnock Road, Glasgow G44 4TZ | 08718 711 992 | https://www.macsystems.co.uk/ |
| MacAce Ltd | Westcountry House, Victoria Square, Bodmin PL31 1EB | 01208220010 | https://www.macace.net/ |
| MacD IT Ltd | 62 East Main Street, Armadale EH48 2NS | 01501 731 919 | |
| Macfarlane Telesystems Ltd | 22-26 Albert Embankment, London SE1 7TJ | 020 7314 1300 | https://www.macfar.co.uk/ |
| MacGregor IT Solutions Ltd | 103 East Stirling Street, Alva, Clackmannanshire FK12 5HB | 01259 928631 | |
| Macintosh Electronics Ltd | 5 Brook Drive, Whitefield, Manchester M45 8FR | 0161 796 5272 | |
| Maclean Data Comms Ltd | Suite D, Lancaster House, Enderby Road, Leicester LE8 6EP | 0116 277 4020 | |
| MacLellan IT Ltd | Kathellan House, Home Farm, Kelty KY4 0JR | 0845 833 1677 | |
| Macnamara ICT Ltd | 2.1 Hoxton Works, 128 Hoxton Street, London N1 6SH | 020 3102 2140 | |
| MacNeil Training & Developments Ltd | 3 Carmunnock Road, Glasgow G44 4TZ | 01415838800 | |
| Madasafish | http://www.madasafish.com/ | ||
| MADJUBA Ltd | 47 Royal Earlswood Park, Redhill RH1 6TJ | 020 7101 6368 | |
| Magcomm Ltd | branston court, birmingham B18 6BA | 07930381603 | |
| Magdalene Ltd | Magdalene House, Compass Point Business Park, Stocks Bridge Way, St Ives PE27 5JL | 01480357777 | |
| Magenta Solutions Ltd | Unit 14B The Briars, Waterberry Drive, Waterlooville, Hants PO7 7YH | 0845 894 9685 | |
| Magma IT Services Ltd | 12 Far Brook, Brixworth, Northampton NN6 9UN | ||
| Magna Communications Ltd | Unit 3 Sunningdale Trading Estate, Dixon Close, Lincoln LN6 7UB | 01522287777 | |
| Magnetic North Software | |||
| Magnus Telecom Ltd | 53 GILLSCROFT ROAD, BIRMINGHAM B33 9PS | 01213267116 | |
| Magrathea Telecommunications Ltd | 5 Commerce Park, Brunel Road, Theale, Berkshire RG7 4AB | 0345 004 0040 | https://www.magrathea-telecom.co.uk/ |
| Maincoms Ltd | 61 Longmynd Drive, Fareham, Hants PO14 1SR | 08447012050 | |
| Mainframe Computer Services Ltd | 17a Upper Aughton Road, Southport PR8 5NA | 01704562333 | |
| Mainframe Group Ltd | 24 Old Station Way, Wooburn Green HP10 0HZ | 02071838978 | |
| Mainline Internet Services Ltd | Staxford Villa, Stacksford, Attlboroug, Norfolk NR17 1PD | 01953 860 225 | |
| Mainlink Communications Ltd | Unit 19, Hedge End Business Centre, Botley Road, Southampton, Hampshire SO30 2AU | 0845 345 3995 | |
| Mainstream Digital Ltd | Cirencester Business Park, Love Lane, Cirencester, Glos GL7 1XD | 01285 884310 | https://www.msdigital.com/ |
| Main-Tel (Ne) Ltd | Thorntree Farm, Bassleton Lane, Thornaby, Stockton on Tees TS17 0PN | 01642 762202 | |
| Maintel Europe Ltd | 160 Blackfriars Road, London SE1 8EZ | 0344871112 | |
| Maintel UK Ltd | House Of Needham, Alkington Rd, Whitchurch SY13 1SR | 01948660000 | |
| Maintel Voice & Data Ltd | 61 Webber Street, London SE1 0RF | 0870 401 5600 | |
| Majestic Ventures Group Ltd | 1st Floor, 34 south Molton Street, Mayfair, London W1K 5RG | 02071939290 | |
| Maker Technologies Ltd | West View, 11 Carrs Crescent, Formby, Merseyside L37 2EU | 01704 832 626 | |
| Makinson Security Systems Ltd | 405 Wigan Road, Ashton in Makerfield WN4 0AR | 07730394228 | |
| Mala Communications Ltd | Suite F, Breakspear Park, Breakspear Way, Hemel Hempstead HP2 4TZ | 03300 240 444 | |
| Mallott Installations | 28 Milton Avenue, Braintree, Essex CM7 1AD | 0870 444 1041 | |
| Managed Business Communications Ltd | Unit 2, Tennis Court, Little Tennis Street, Nottingham NG2 4EW | 0871 222 2290 | |
| Managed Connections Ltd | Worting House, Church Lane, Basingstoke RG23 8PX | 03335777247 | |
| Managed Networks Ltd | 6-8 Bonhill Street, London EC2A 4BX | 020 7496 8000 | |
| Managed247 Ltd | Technology House, 151 Silbury Boulevard, Milton Keynes MK9 1LH | 0845 519 5390 | |
| Manchester Metronet Ltd | |||
| Mandate Utilities Ltd | 15a Marsh Mill Village, Fleetwood Road North, Thornton Cleveleys, Lancashire FY5 4JZ | 01253 851 818 | |
| Mango Com Ltd | 1075 Finchley Road, London NW11 0PU | 020 3026 1120 | |
| Mango Technologies Ltd | 19 Over Ashberry, Altrincham WA14 5ZN | 07538791726 | |
| Mangrove Services | 453 Cowbridge Road West, Cardiff CF5 5TF | 029 2132 3485 | |
| Mann Telecom Ltd | Bawnmore Park, Rugby CV226JW | 01788 461668 | |
| Mansys UK Ltd | Hope Park Business Centre, Trevor Foster Way, Bradford BD5 8HH | 01274 395222 | |
| Manta9 Ltd | 63 Collingwood Court, The Strand, Brighton BN2 5WJ | 01273 652300 | |
| Mantech | 191A Warwick Avenue, Littleover, Derby DE23 6HN | 01332 737 752 | |
| Mantracom Ltd | Claylands House, Alders Way, Yalberton Industrial Estate, Devon TQ4 7QL | 0844 264 1442 | |
| Manx Telecom Trading Ltd | Isle of Man Business Park, Cooil Road, Braddan, Isle of Man IM99 1HX | 01624 624624 | https://www.manxtelecom.com/ |
| Maple Communications | 73 Northease Drive, Hove BN3 8PP | 01273 417 170 | |
| Marathon Telecom Ltd | 28 Halkett Place, St Helier, Jersey JE2 4WG | ||
| Marches Media Ltd | Orchard Cottage, Woodseaves, Eardisley HR3 6LY | 01544 327001 | |
| Marchfont Ltd | Station Road, Stratford-Upon-Avon CV378JW | 01217269185 | |
| Marcus Ltd | 62 Bagleys Lane, Farsley, Leeds LS28 5LY | 0113 236 2626 | |
| Marina Telecom Ltd | 23 Ocean View, Jersey Marine, Neath SA10 6HR | 01792 651 000 | http://www.marinatelecom.co.uk/ |
| Mark Adams | Norwood, Meirion St, Aberdare CF44 8NH | 01685 700040 | |
| Marke Solutions | 6 Captains Hill, Alcester, Warwickshire B49 6QW | 0121 270 6554 | |
| Marketing Initiatives | |||
| Marketing Technology Group Holdings Ltd | 19152, Chynoweth House, Trevissome Park, Truro, Cornwall TR4 8UN | 02036103940 | |
| Marks and Spencer | https://www.marksandspencer.com/ | ||
| Marley Communications Ltd | Studio F, Caddsdown Business Support Centre, Clovelly Road, Bideford EX39 3DX | 01237423445 | |
| Mars Communications Ltd | Forest House, Forest Road, Ilford IG6 3HJ | 020 7455 3000 | https://www.marscomms.co.uk/ |
| Mars Telecom Ltd | 6 Station Parade, Northolt Road, Harrow, London HA2 8HB | 02080048811 | |
| Marstons | https://www.marstons.co.uk/ | ||
| Marstons Telecoms Ltd | IT and Telecoms Dept, Marston's House, Brewery Road, Wolverhampton WV1 4JT | 01902 711811 | |
| Martin Dawes Solutions | Martin Dawes House, Europa Boulevard, Westbrook, Warrington WA5 7WH | 01925 713 888 | |
| Martin Docherty | 99 Onslow gardens, Wallington SM6 9PX | 02087731780 | |
| Martley Web Mesh | The Berrow, Martley, Worcester, Worcestershire WR6 6PQ | 01886 821 237 | |
| Martrel Ltd | Fairfield Enterprise Centre, Lincoln Way, Louth LN11 0LS | 01507222009 | https://www.martrel.co.uk/ |
| MAS Networks Ltd | Sandstone Barn, Handcross Road, Plummers Plain, Horsham, West Sussex RH13 6NU | 0800 0124 285 | |
| Masergy Communications Uk Ltd | 29 Finsbury Circus, Salisbury House, 5th Floor, London EC2M 5QQ | 44 (0) 207-173-6900 | |
| Mason Infotech Ltd | 29 Bridgford Rd, West Bridgford, Nottingham NG2 6AU | 0333 2400484 | |
| Matrix 4G Ltd | 9th Floor, South Tower, 26 Elmfield Road, Bromley, Kent BR1 1WA | 020 8290 9861 | |
| Matrix IT Solutions Ltd | 15 Fareham Enterprise Centre, Hackett Way, Fareham PO14 1TH | 01329 888444 | |
| Matrix Logic Comnet Ltd | Unit 4, Stephenson Court, Stephenson Way, Newark NG24 2TQ | 01636 642 450 | |
| Matrix Network | 6 Little Copse Chase, Chineham, Basingstoke RG24 8GL | https://www.matrixdial.co.uk/ | |
| Matrix Platinum Ltd | https://www.matrix247.com/ | ||
| Matthew Brain | gethiniog cottage, cross oak, talybont on usk, brecon LD37UQ | 01874676362 | |
| Matthew Cramer | 23 St. Lawrence Way, Bricket Wood, St. Albans AL2 3XN | 02030210820 | |
| Matthews Computer Services | 140 windsor Road, Maidenhead, Berkshire SL6 2DW | 01628 626352 | |
| Maven IT Services Ltd | 154 The Rocks Road, East Malling ME19 6AX | 01622230053 | |
| Maverick Connect Ltd | Lavenham Business Centre, Admiral House, Parsons Street, Oldham OL9 7AH | 01613001283 | |
| Maw Telecoms Ltd | 20-22 Wenlock Road, London N1 7UG | 07515667626 | |
| MAX IT Ltd | 36 East Street, Nottingham NG10 2DH | 01159465227 | |
| Max Telecom | http://www.max-telecom.co.uk/ | ||
| Max Telecom UK Ltd | PO Box 608, Stalybridge SK15 2WB | 0161 304 7731 | |
| Maxadie Ltd | 16 Eskdale Gardens, Maidenhead SL6 2HE | ||
| Maxim Solutions Ltd | 36 Bruton Street, Mayfair, London W1J 6QZ | 020 7016 5180 | |
| Maxima Managed Services Ltd | Service Management Centre, 24 Chiswell Street, London EC1Y 4TY | 020 7579 8299 | |
| Maxima Telecom Ltd | 9 Tegan Close, Sutton SM2 GS | 020 3514 6814 | https://www.maximatel.com/ |
| Maximum Maintenance Uk Ltd | Holly House, Shady Lane, Great Barr, Birmingham B44 9ER | 0121 3603775 | |
| Maximum Networks (UK) Ltd | |||
| Maximus Communications | Enterprise House, Unit 4 Orpington Trade Centre, Murray Road, Orpington, Kent BR5 3SS | 08704 445 560 | |
| MaxIT Solutions Ltd | The Old House, 30 Hastings Road, Pembury TN2 4PD | 01892823779 | |
| Maxnett Ltd | Rockware Business Centre, 5 Rockware Ave, Greenford UB6 0AA | 0845 868 0000 | |
| Maxxwave | https://www.maxxwave.co.uk/ | ||
| Maya Solutions Ltd | 135 Salusbury Road, London NW6 6RJ | 02031119878 | |
| Mayflower plc | Communications House, 61-65 Chapel Street, Billericay, Essex CM12 9LT | 01277 630 444 | |
| MazingTree Ltd | 47 Thornhill Road, Plymouth PL3 5NF | 01752 540540 | |
| MB System Networks Ltd | https://www.mbtelecom.co.uk/ | ||
| MBCS.NET Ltd | 231 Leach Green Lane, Rednal, Birmingham B45 8EB | 0121 460 1231 | |
| MBE Communications | Midland House, 58 Carlton Road, Nottingham NG3 2AP | 0115 9599 555 | |
| MBT Communications Ltd | 48a Northview Road, Luton LU2 7LF | 0844 880 2275 | |
| MCG Systems Ltd | The Stables, Condover Mews, Condover, Shrewsbury SY5 7BG | 01743 875150 | |
| Mci 4 Service Ltd | Suite 6, Albion House, Savile Street, Sheffield S4 7UD | 0114 280 3980 | |
| MCL Services (NI) Ltd | The Innovation Centre, Northwest Regional Science Park, Derry BT48 7TG | 02871277814 | |
| Mclwebco Ltd | 28 Kineton Road, Wellesbourne CV35 9LQ | 01789471541 | |
| MCNtelecom GmbH | Lindengasse 56, Wien 1070 | 03614900999 | |
| Mcom Systems Ltd | The Office Fence Avenue, Macclesfield, Cheshire SK10 1LT | 01625 460 012 | |
| MCS Global Ltd | Ashwood, Grove Business Park, Maidenhead SL6 3LW | 01628828000 | |
| MCS Systems | 45 Preston Road, London E11 1NL | 020 8530 7803 | |
| MCSa Group Ltd | Maindec House, Holtspur Lane, wooburn Green HP100AB | 01628810977 | |
| MDI Networks Ltd | 17-18 The Oakwood Center, Downley Road, Havant, Hants PO9 2NP | 0845 226 8371 | |
| MDNX Managed Services Ltd | Sugarbond, 2 Anderson Place, Edinburgh EH6 5NP | 0870 9061111 | |
| MDR Interfaces Ltd | Forest Hollow, Nursery Lane, Nutley, East Sussex TN22 3NP | 01825 790294 | |
| MDRTech | 6 Lyndridge Court, okehampton EX201JG | 01392 580966 | |
| MDS telecom ltd | unit 1 sovereign business centre, wigan WN1 3AB | 01942310287 | |
| Mear Technology Ltd | The Alba Business Centre, The Alba Campus, Livingston EH54 7EG | 01506668613 | |
| Medhurst (North West) Ltd | Frodsham Business Centre, Bridge Lane, Frodsham WA6 7FZ | 01928 290101 | |
| Medhurst Communications Ltd | |||
| Media & Communications Ltd | Unit 10, Riverside Business Centre, Brighton Road, Shoreham-by-Sea, West Sussex BN43 6RE | 0870 770 1890 | |
| Media Centre Network Ltd | Media Centre Network Ltd, 7 Northumberland Street, Huddersfield HD1 1RL | 0870 990 5049 | |
| Media Fields Ltd | Mediafields, 42-44 Rhosddu Road, Wrexham LL11 2NT | 01978361666 | |
| Media Hawk Ltd | Power House, Harrison Close, Knowlhill, Milton Keynes MK5 8PA | 0800 046 4011 | https://www.mediahawk.co.uk/ |
| Media Logic Ltd | Lydgate House, 9 Lydgate Lane, Sheffield, South Yorkshire S10 5FH | 0114 266 2222 | |
| Media Telecom Ltd | 26 Calthorpe Road, Edgbaston, Birmingham B15 1RP | 0844 258 8521 | http://www.media-telecom.co.uk/ |
| MediaBlaze Hosting Ltd | 31 Station Road, Charing, Ashford, Kent TN27 0JA | 03333350166 | |
| Mediatel (Sound Advertising Ltd) | 4 Cumbrian House, Meridian Gate, 217 Marsh Wall, London E14 9FJ | 020 7308 5555 | https://www.mediatel.com/ |
| Medway Council | Gun Wharf, Dock Road, Chatham, Kent ME4 4TR | 01634 336318 | |
| Meerkat Comms Ltd | No 1 Nottingham Science Park, Jesse Boot Avenue, University Boulevard, Nottingham NG7 2RU | 0115 8800 088 | |
| Meetingzone Ltd | Oxford House, Oxford Road, Thame, Oxon OX9 2AH | 02920 022 203 | |
| Megganet | 151 Tattysallagh Road, Drumqiuin, County Tyrone, N. Ireland BT78 4RQ | 028 8283 1111 | |
| Meibion Maesycastell Ltd | Parc Morgan, Crosshands Bus Park, Llanelli, Carmarthenshire SA14 6RB | 01269 842 242 | |
| Meidan Ventures Ltd | 20 William James House, Cowley Road, Cambridge CB4 0WX | 020 3129 2062 | |
| Melbek Technology Ltd | Unit 7, Leiston Enteprise Service, Leiston, Suffolk IP16 4US | 0871 236 680 | |
| Melbek Telecom | Bay House, 20-22 Market Place, Saxmundham, Suffolk IP17 1AG | 0151 326 2240 | |
| Melius Group Ltd | Corburg Street, Gateshead NE8 1NS | 01912171384 | |
| Mellow Marsh Software Ltd | Wolverhampton Self Storage Ltd, Unit A114, Vulcan Road, Bilston WV14 7LF | 01902 544135 | |
| Melonite UK Ltd | North Sands Business Centre, Liberty Way, Sunderland SR6 0QA | 0191 640 2400 | |
| Melrose IT Solutions Ltd | Melrose House, Upper High Street, Cefn Coed, Merthyr Tydfil CF48 2HW | 01685 388880 | |
| Melrose Next Ltd | Cambridge House, 67-69, Woodham Lane, New Haw, Surrey KT15 3ND | 0870 111 8080 | |
| Memset Ltd | Building 87, Dunsfold Park, Stovolds Hill, Cranleigh GU6 8TB | +44 (0)1483 608010 | |
| Menai Communications Ltd | Bronydd, Llanfairpwllgwyngyll LL61 6YD | 07375321104 | |
| Meraki Communications Ltd | 106 Kiln Road, Fareham PO16 7UN | 07825779257 | |
| Merchant Global Assistance, Ltd | 219 Kensington High Street, Kensington W8 6BD | 03333390006 | |
| Mercia Business Systems | 46 Belmont Road, Wolverhampton WV4 5UD | 01902 500 989 | |
| Mercia Computing Ltd | Laurus House, First Avenue, Centrum 100, Burton on Trent DE14 2WH | 01283 260001 | |
| Mercia Facilities Management Ltd | 169 Torrington Avenue, Tile Hill, Coventry CV4 9AP | 02476 645975 | |
| Mercury Talk Ltd | 713 Cranbrook Road, Grants Hill, Essex IG2 6RJ | 020 8550 6677 | |
| Mercury UK | 3 Rosewood, Westhoughton, Bolton BL5 2RX | 0844 412 8580 | |
| Mercury3 Ltd | 206 White Lane, Sheffield S12 3GL | 0870 4204858 | |
| Mercuryavs Ltd | 10 Chatsworth Avenue, Chesterfield S40 3JU | 01246 900900 | |
| MergedComms Ltd | 444 Royal Exchange, Manchester M2 7EP | 03301222220 | |
| Mergence Ltd | Unit M-6, Clifton Trade Centre, 6 Greatorex Street, London E1 5NF | 0330 122 9119 | |
| Meridian Computer Systems Ltd | Unit 2 Keelan Close, Norwich NR6 6QZ | 01603340172 | |
| Meridian IP Communications Ltd | Unit 18 Freemantle Business Park, Southampton SO15 1JR | 0845 313 0987 | |
| Merlin Business Software Ltd | Chatsworth House, 1 Millennium Way, Chesterfield S41 8ND | 01246 457 150 | |
| Merlin Telecommunications Ltd | 3 Cook Close, Brompton on Swale, Richmond DL10 7TY | 0800 8778 810 | https://www.merlin-telecom.co.uk/ |
| Merr I.T Ltd | Unit 3, Maundrell Road, Porte Marsh Industrial Estate, Calne SN11 9BW | 01249477000 | |
| Merseygrid Ltd | Fairfield House, 56 Binns Road, Liverpool L7 9NE | 0151 473 5975 | |
| Merula | 25-31 Huntingdon Street, St Neots, Cambridgeshire PE1 1BG | 01480 222940 | https://www.merula.net/ |
| Mesco Consulting Ltd | 11 Woodhill Park, Portishead BS20 7DR | 07973 174 147 | |
| Mesla Ltd | 57 Cecil Crescent, Hatfield AL10 0HG | 01707 892695 | |
| Messenger Telecom Ltd | Eden Point, Three Acres Lane, Cheadle Hulme, Cheshire SK8 6RL | 03332228880 | |
| Met Technologies Ltd | 2 Bridge Avenue,, Maidenhead, Berkshire, SL6 1RR | 0800 0588 233 | |
| Metavoxx Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 02075844055 | |
| Metfusion Ltd | Unit 1B, First Floor,, Lakeview Business Park, Lamby Way, Cardiff CF3 2EP | 02922 680 669 | |
| Method B Ltd | The Werks, 45 Church Road, Hove BN3 2BE | 03302230864 | |
| Metier IT | 5 Palatine Suite, Coppull Enterprise Centre, Mill lane, Coppull PR7 5BW | 0161 818 4886 | |
| Metro Switch Ltd | Royal Mews, St Georges Place, Cheltenham GL50 3PQ | 02038823200 | |
| Metrodata Ltd | Fortune House, Eversley Way, Egham, Surrey TW20 8RY | 01784 744 700 | |
| Metronet | https://www.metronet.co.uk/index.html?mnsession=9fc32835a09ab61f6da92707f08a96e7 | ||
| Metronet (UK) Ltd | Unit 1-4 Greenheyes Data Centre, Manchester Science Centre, Pencroft Way, Manchester M15 6JJ | 0161 822 2560 | https://www.metronet-uk.com// |
| Metrotech Solutions Ltd | St Georges House, 2 St Georges Road, Bolton, Bolton BL1 2DD | 01619740860 | |
| MF Communications UK Ltd | Unit 30, Chapman Way, Tunbridge Wells, Kent TN2 3EF | 01892 514687 | https://www.mfcomm.co.uk/ |
| MF Telecom Services Ltd | Unit 30, Chapman Way, Tunbridge Wells, Tunbridge Wells TN2 3EF | 01892577577 | |
| MFG Communications Ltd | Unit 19, Theale Lakes Business Park, Sulhamstead, Berkshire RG7 4GB | 01189 148 800 | |
| MFM-IT Ltd | 15-17 Lawn Avenue, Stourbridge DY8 3UR | 01384 880000 | |
| MFX Systems Ltd | Crown House, Home Gardens, Dartford DA1 1DZ | 0203 405 1750 | |
| Mg Computer Services Ltd | 145B, Hastings Road, Pembury, Tunbridge Wells TN2 4JU | 01892826130 | |
| Mh Computers Ltd | MH Computers Ltd, Trident House, Milner Way, Ossett WF5 9JE | 07931877257 | |
| mi cloud 365 Ltd | Silent House, 69 Baltimore Road, Great Barr, Birmingham B42 1DD | 01216876828 | |
| Mi Telecom Ltd | 14 Hemmells, Basildon, Essex SS15 6ED | 0800 810 8000 | https://www.mi-telecom.co.uk/ |
| Michael Milano | 35 Orion Road, Rochester ME1 2UL | 01634778434 | |
| Mick George Telecom Ltd | 6 Lancaster Way,, Ermine Business Park, Huntingdon PE29 6XU | 01480464106 | |
| Micom Systems | Micom House, 4A Bilton Lane, Dunchurch, Rugby CV22 6PY | 01788 220 022 | |
| Micro Computer Consultants Ltd | 27-31 Earle Street, Newton Le Willows WA12 9LW | 01925444499 | |
| Micro Engineering Ltd | 155 Kingston Rd., New Malden KT3 3NS | 02089492191 | |
| Micro Minder Ltd | Unit1, 8A Wadsworth Road, Perivale, Greenford UB6 7JD | 08450941090 | |
| Micro Plus Computers Ltd | Unit 8 Trade Stop, Oswestry SY10 8NU | 01691 670960 | |
| Micro-Business Maintenance Ltd | 8a Windmill Bank, Wombourne, Wolverhampton WV5 9JD | 01902324494 | |
| Microbyte Business Solutions Ltd | The Annexe, Victoria Mill, Worrall Street, Congleton CW12 1DT | 01260 275381 | |
| Microbyte Solutions Ltd | 10 Commerce Road, Lynchwood, Peterborough PE2 6LR | 01733 577 055 | |
| Microcare Systems Ltd | Microcare Systems Ltd, Hamilton Systems Ltd, Warth Road, Bury, Lancs BL9 9NB | 0800 515513 | http://www.microcare-systems.co.uk/ |
| Microcomms Professional Services Ltd | Pool Innovation Centre, Trevenson Road, Pool, Redruth TR15 3PL | 01209 843 636 | |
| Microcomputer Workshops Ltd | The E-Business Centre, Davy Way, Llay, Wrexham LL12 0PG | 01978 858300 | |
| Microcoms Telephone Management Ltd | Mayfair Business Centre, Garvaghy Rd, Portadown BT62 1HA | 02894420600 | |
| microform | 5 Kingsdale Close, Walton le Dale, Preston PR54BT | 07989115251 | |
| Microlease PLC | Unit 1, Waverley Industrial Estate, Harrow HA1 4TR | 02084200200 | |
| MicroMart Europe Ltd | Kingswick House, Kingswick Drive, Sunninghill SL5 7BH | 01344875385 | |
| Micromat International | 8 High Street, Tilbrooke, Cambridgeshire PE28 0JP | 01480 860584 | |
| Micromax Computer consultancy Ltd | 275 Meadgate Avenue, Chelmsford CM2 7NJ | 01245 929 121 | |
| Micron Communications | Unit 5&6, Bartlett Court, Lynx Trading Estate, Yeovil, Somerset BA20 2NZ | 0870 787 2001 | |
| Micronet Infotech Ltd | 32 Metro Centre, Dwight Road, Watford WD18 9SB | 01923 800614 | |
| Micro-P Ltd | Shorten Brook Way, Altham Business Park, Accrington, Lancashire BB5 5YJ | 01282 776 776 | |
| Microsis Ltd | 2 Countrymans Way, East Goscote, Leicester LE7 3WU | 07595 021206 | |
| Microsmiths Ltd | 9 Linford Forum, Rockingham Drive, Linford Wood, Milton Keynes MK14 6LY | 01908 546500 | |
| Microtalk Europe Ltd | 4th Floor, West World, West Gate, Ealing, London W5 1DT | 0800 814 4404 | http://www.microtalk.co.uk/ |
| Microtalk UK Ltd | 4th Floor, West World, West Gate, Ealing, London W5 1DT | 0800 814 4404 | http://www.microtalk.co.uk/ |
| Microtalk Wholesale Ltd | 4th Floor, West World, West Gate, Ealing, London W5 1DT | 0800 814 4404 | http://www.microtalk.co.uk/ |
| Microtech Sales UK Ltd | The Portfolio Centre, St Georges Avenue, Northampton NN2 6FB | 01604779014 | |
| Microtech Support Ltd | Portland House, 38 Portland Road, Kilmarnock, Ayshire KA1 2DL | 01563 530 480 | |
| Microtechnics Consultants Ltd | The School House, Cowpen Bewley, Billingham, Cleveland TS234HS | 01642 562835 | |
| Microtest Ltd | 18 Normandy Way, Bodmin PL311EX | 01208261600 | |
| Microtrading Ltd | System House, 158 Church Road, Yardley, Birmingham B25 8UT | 0121 784 0077 | |
| Microworld (Yorkshire) Ltd | Unit 1, Gatehouse Enterprise Centre, Albert Street, Huddersfield HD1 3QD | 0800132201 | |
| Midas Communications Ltd | 4, Upper Pavenhill, Purton, Swindon SN5 4DQ | 01793279551 | |
| Midas Telecom Ltd | 82-84 York Road, Bristol BS3 4AL | 0117 963 8249 | https://www.midastelecom.com/ |
| Midas Telecom Solutions | Number One, Waterton Park, Bridgend CF31 3PH | 0844 225 7979 | |
| Midland Communications Company Ltd | Orchard Works, Backfields, Upton upon Severn, Worcestershire WR8 OJH | 0800 138 3227 | |
| Midland Networks Group Holdings Ltd | 140 Stourbridge Road, Halesowen, Halesowen B63 3UL | 01212708700 | |
| Midland Phone Services Plc | Shaw House, Wychbury Court, Brierley Hill, West Midlands DY5 1TA | 0330 333 6400 | |
| Midland Tech Solutions Ltd | Office 3, 82A High Street, Bridgnorth, Shropshire WV16 4DS | 01746 767 676 | |
| Midland Telecom Networks Ltd | 140 Stourbridge Road, Halesowen, Birmingham B63 3UL | 0121 270 8700 | https://www.midlandnetworks.co.uk/ |
| Midland Telecommunications Management Ltd | 14 Edward Street, Birmingham B1 2RX | 0121 214 1100 | https://www.midlandtelecom.co.uk/ |
| Midland Telecommunications Management Ltd | 255 Hospital Street, Birmingham B19 2YG | 0121 333 3488 | |
| Midlands Pro IT Services Ltd | 41 Buttercup Road, Kettering, Northampton NN14 2JP | 01536 765 687 | |
| Midlands Tel.co Ltd | Forward House, 34 High Street, Sutton Coldfield B72 1UP | 01213458333 | |
| Midnight-online (UK) Ltd | Midnight-online (OK) Ltd, 16 Greenlands, Flackwell Heath, Bucks HP10 9PL | 07958 103764 | |
| Midpoint Communications Ltd | 19 Grosvenor Street, Chester CH1 4JE | 01908665200 | https://www.midpointcommunications.co.uk/ |
| Midshire Business Systems (Communications) Ltd | 95-97 Cato Street, Nechells, Birmingham B7 4TS | 0121 359 5559 | https://www.midshire.co.uk/ |
| Midshire Telecom | https://www.midshiretelecom.co.uk/ | ||
| Midsys IT Ltd | Beaumont Enterprise Centre, Boston Road, Leicester LE41HB | 03331014224 | |
| Midus Communications Ltd | Midus House, 9 Hummingbird Close, Bury St Edmunds, Suffolk IP32 7GR | 01284 704 339 | |
| Miele Company Ltd | Fairacres, Marchem Road, Abingdon OX14 1TW | 01235233263 | |
| Might Ltd | Suite 114, 116 Ballards Lane, Finchley, London N3 2DN | 02034118936 | |
| MigTech IT Solutions Ltd | TEDCO Business Centre, Viking Industrial Park, Jarrow NE32 3DT | 01914282443 | |
| Mikrotek Solutions Ltd | 10 Shelley Close, Bicester, Oxon OX26 2YZ | 01869 360 006 | |
| Miles Better Media Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 07718582285 | |
| Millbeck Communications Ltd | Archway House, 30 High Street, Wetherby LS22 6LT | 01937 280 027 | |
| Millbridge Systems Ltd | Millbridge Cottage, Stump Lane, Hucclecote GL3 2LT | 01452347380 | |
| Millennium Telecom Ltd | 17 Midland Court, Oakham, Rutland LE15 6RA | 0870 179 0870 | https://www.millennium.ltd.uk/ |
| Miller Solutions Ltd | Matilda House, Carrwood Road, Chesterfield S41 9QB | 01246 266 039 | |
| Miller Waite Ltd | Unit 12 Lightburn Trading Estate, Lightburn Road, Ulverston LA12 7NE | 01229 588114 | |
| Miller Waite Broadband | https://www.millerwaite.com/ | ||
| Millgate Connect Ltd | 7 Vantage Drive, Sheffield S9 1RG | 0114 242 7310 | |
| Mills Electrical | 17 Eastfield Close, Worcester WR3 7TS | 08455088916 | |
| Milne Craig Technology Solutions Ltd | 79 Renfew Road, Paisley PA3 4DA | 0141 847 5828 | |
| Milonic Ltd | 28 Cold Hatton, TELFORD TF6 6PZ | 07811330643 | |
| Milton Keynes Cabling Ltd | 12 Treefields, Buckingham MK181GP | 01908769823 | |
| MIMASM Ltd | Boho One, Bridge Street West, Middlesbrough TS1 2AE | 0843 224 9088 | |
| Mimesis Solutions Ltd | 7 Cherry Orchard Estate, Higham-on-the-Hill CV136AF | 03302233198 | |
| Minotaur IT Ltd | 6 Meadslade, Hartwell, Northampton NN7 2ES | 01604 808708 | https://www.minotaur.it/ |
| Minotaur Telecom Ltd | 10 Cheyne Walk, Northampton NN1 5PT | https://www.minotaurtelecom.com/ | |
| Minster Micro Computers Ltd | 115 Worcester Road, Kidderminster, Worcestershire DY101HU | 0156268211 | |
| Mint Chilli IT Consulting | 28 Harness Way, St Albans AL4 9HA | 07977520683 | |
| MINT network Ltd | 10 Beaumont, 6 St. John's Avenue, London SW15 2AF | 07810 433 939 | |
| Mintaka Ltd | 2 More London Riverside, London SE1 2AP | 020 3499 5050 | https://www.dialogagroup.com/ |
| Minute One Ltd | Harlow Enterprise Hub, Hockham Building, Edinburgh Way, Harlow CM20 2NQ | 020 3096 1240 | |
| MinuteBuyer Corporate Services Ltd | 64 Lower Mount Street, Dublin 2, Ireland | +353+1 661 4697 | |
| Minutes Telecom | Imperial Court, 124 Exchange Street East, Liverpool L2 2AB | 0151 421 2600 | |
| Miracom Ltd | Miracom Limited, Unit 2 Office 2, Morelands Trading Estate, Bristol Road, Gloucester GL1 5RZ | 08448 248777 | |
| Mirotel Ltd | 147 Albert Road, Portsmouth PO4 0JW | 03300881082 | |
| Mirus IT Solutions Ltd | Carina House, Sunrise Parkway, Linford Wood, Milton Keynes MK14 6NJ | 01908257353 | |
| Mirus Telephony Ltd | Carina House, Sunrise Parkway, Linford Wood, Milton Keynes MK14 6NJ | 01908 257 365 | |
| Misl Ltd | 19 Pindar Road, Hoddesdon, Hertfordshire, England EN110DE | 01992470060 | |
| Missing Link Communications Ltd | Communications House, Bradley Hall Trading Estate, Bradley Lane, Standish, Wigan WN6 0XQ | 01257 473445 | |
| Mission Labs Ltd | C/o Crowe Clark Whitehill Llp, 3rd Floor, The Lexicon, Mount Street, Manchester M2 5NT | ||
| Mitec Computer Solutions Ltd | Unit 5 AJA Business Centre, Laker Road, Rochester ME1 3EZ | 03333231616 | |
| Mitec Telecom Solutions Ltd | Unit 5 AJA Business Centre, Laker Road, Rochester ME1 3EZ | 03333231616 | |
| Mitel Networks Ltd | Castlegate Business Park, Portskewett NP26 5YR | 01291430000 | https://www.mitel.com/ |
| Miteq Ltd | Unit 5 Lansdowne Court, Bumpers Way, Chippenham SN14 6RZ | 01225 255216 | |
| Mix Telematics UK | https://www.mixtelematics.com/ | ||
| MJD Systems Ltd | 1 The Steadings, Spey Bay IV32 7QX | 01343 821 784 | |
| MJH Computer Services | Maycot, Quay Lane, Kirby le Soken, Frinton on Sea CO13 0DP | 01255 675515 | |
| MJRCC Ltd | 138 Worksop Road, Swallownest, Sheffield S26 4WE | 01142878825 | |
| MJS IT Services Ltd | The Royal Stores, 152 Offmore Road, Kidderminster DY10 1SB | 01562 748573 | |
| Mknet Ltd | 71-75 Shelton Street, London, London WC2H 9JQ | 07847775749 | |
| MLCS Ltd | 1 Chestnut Close, St Ives, Cambs PE27 6UQ | 01480 371 600 | |
| M-Line Telecom Ltd | 12 Trinity Crescent, London SW17 7AE | 0800 980 5090 | https://www.mlinetelecoms.com/ |
| M-Line Telecoms Ltd | https://www.mlinetelecoms.com/ | ||
| MLL Telecom Ltd | Park House, 5 Mere Park, Dedmere Road, Marlow, Bucks SL7 1FJ | 01628 474737 | https://www.mlltelecom.com/ |
| Mm Business (Uk) Ltd | Office 23, Gloucester House, 72 Church Road, Stockton-On-Tees TS18 1TW | 01325809635 | |
| MMC Broadband | https://www.mmcbroadband.com/ | ||
| MMR UK Ltd | 11-21 Paul Street, London EC2A 4JU | 020 7300 1100 | |
| MMS Comms Ltd | Hermes House, 5 Heritage Park, Hayes Way, Cannock WS11 7LT | 01902 544 135 | |
| MNT Consultancy Ltd | Discovery House 3.6, Gemini Crescent, Technology Park, Dundee DD2 1SW | 01382250101 | |
| Mobifon Communication Ltd | Bradley Court, Off Maple Road, Castle Donington, Leicestershire DE74 2UT | 0845 2702476 | |
| Mobifon Communication Ltd | Bradley Court, Off Maple Road, Castle Donington, Leicestershire DE74 2UT | 0845 2702476 | |
| Mobile 5 Ltd | Kingfisher House, 21-23 Elmfield Road, Bromley, Kent BR1 1LT | 0845 302 1900 | |
| Mobile Account Solutions Ltd | Suckling's Yard, Church Street, Ware, Hertfordshire SG12 9EN | 01920 466 466 | |
| Mobile Account Solutions (Holdings) Ltd | Sucklings Yard, Church Street, Ware SG12 9EN | 01920466466 | https://www.mobileaccountsolutions.co.uk/ |
| Mobile Business Solutions Ltd | C4 Moorfield Point, Moorfield Road, Slyfield Industrial Estate, Guildford, Surrey GU1 1RU | 01483 563 999 | |
| Mobile Cellular Ltd | 195 London Road, Burgess Hill, West Sussex RH15 9RN | 01444 242 200 | |
| Mobile Edge Uk Ltd | 71-75 Shelton St, Covent Garden, London WC2H 9JQ | 0203 384 2727 | |
| Mobile Solutions (Herts) Ltd | 4 Viewpoint, Babbage Road, Stevenage SG1 2EQ | 01438 745574 | |
| Mobilefirstiot Ltd | 4a Gypsy Street, Belfast BT7 3FW | 07900462722 | |
| Mobiweb Telecom Ltd | Third Floor, 207 Regent Street, London W1B 3HH | 020 3318 3618 | https://www.solutions4mobiles.com/ |
| Mobo Broadband Ltd | 4th Floor, 115 George Street, EDINBURGH EH2 4JN | 07922670677 | |
| MOCKINGBIRD CONSULTING Ltd | Drybridge House, Drybridge Park, Monmouth NP25 5AS | +44 (0) 1600 717142 | |
| Modbury Marketing Computer | Sentinel House, Poundwell, Modbury, Devon PL21 0XX | 01548 830 710 | |
| Modern Communications Ltd | 26 Grays Inn Road, London WC1X 8HR | 0870 444 9891 | |
| Modrus Ltd | Midland House, 2 Poole Road, Bournemouth BH2 5QY | 020 3371 6666 | |
| Modulation Telecom Ltd | 65 Hawkhurst Close, Newtown, Southampton SO19 9AX | 08443307704 | |
| Module IT Ltd | Bdg 8/1 Vantage Point Business Village, Mitcheldean, Gloucestershire GL17 0DD | 01594 887 399 | |
| MogIT | 26, Trevince Road, Carnon Downs, Truro TR3 6FN | 07973199968 | |
| Mojocom Systems Ltd | Birchwood Cottage Woldingham Road, Woldingham, CATERHAM CR3 7LR | 020 3411 6319 | |
| MoJoU Ltd | 17 Plover Close, Fareham PO143PX | 01932508844 | |
| Monaghan Consultants Ltd | 19 Wellington Rd, stevenage SG2 9HR | 0207 0433142 | |
| Mondial Services Ltd | Unit 112, 94 Londno Road, Headington, Oxford OX3 9FN | 01865 750 869 | |
| Monex Telecom Ltd | 32 Spring Street, London W2 1JA | 02074022900 | |
| Money Saver Telecom Ltd | Tannery Court, Tanners Lane, Warrington, Cheshire WA2 7NR | 01925 401 702 | |
| Moneyplus Telecoms Ltd | Riverside, New Bailey Street, Manchester M3 5FS | 0161 509 4777 | |
| Monitor Ltd | Atrium Court, the Ring, Bracknell RG12 1BW | 03455191811 | |
| Monkey Tree Hosting Ltd | 9 Brooklands Court, Kettering Venture Park, Kettering NN15 6FD | 02033580210 | |
| Monster Utilities Ltd | 28 Woodlands Road, Bookham, Leatherhead, Surrey KT23 4HF | 07717667788 | |
| Castleton Technology Managed Services Ltd | Blackbrook House, Dorking RH4 1HJ | 01306 888000 | |
| Moodfield Ltd | Floor 8, 6 Mitre Passage, Greenwich, London SE10 0ER | 02034755364 | |
| Moonshado Inc | |||
| MoorTalk Ltd | Suite 3, 9 Park Street, Congleton, Cheshire CW12 1EY | 01782 510 500 | |
| Moortek | Moortek, The Old Police Station, Kerries Road, South Brent TQ10 9BZ | 01364 700290 | |
| Moose Group Ltd | 3 Silverwood, Alderbury SP53TN | 07540351449 | |
| Moose Internet Services | Electra house, Wiggenhall Ind Est, Wiggenhall Road, Watford,, Herts WD18 0FG | 01923 238248 | |
| Morcan Ltd | 1-3 Snow Hill, London EC1A 2DH | 0845 260 5606 | |
| More Solutions Ltd | 21 Drakes Mews, Crownhill, Milton Keynes MK8 0ER | 08442511450 | |
| More Talk Communications Ltd | Inspire Centre, 747 Stockport Road, Manchester M19 3AR | 0161 375 0123 | |
| Morecom Ltd | 25 Clarence Street, Pontypool, Torfaen NP4 6LG | 01495 755555 | |
| Moremicro Ltd | 69 Steward Street, Birmingham B18 7AF | 01213888999 | |
| morethanit | Hoskins Barn, Bampton OX18 2EP | 01367870545 | |
| Morita Telecom ltd | UNIT 3,ASHLONE WHARF,, EMBANKMENT, PUTNEY, LONDON SW15 1LB | 02035970056 | |
| Morpheus Integrated Technologies Ltd | Liss BusinessCentre, Station Road, Liss, Hampshire GU33 7AW | 01730 894 834 | |
| Morscot Utilities Ltd | 57 Queen Street, Lossiemouth IV31 6PY | 01343544444 | |
| Mosaic Business Systems Ltd | The Lodge, Tannery Court, Tanners Lane, Warrington, Cheshire WA2 7NA | 01925 563 678 | |
| Mother Technologies Ltd | Davidson House, Campus 1, ASTP, Balgownie Road, Aberdeen AB22 8GT | 01224 350 000 | |
| Motion Communications | 11 Whitley Avenue, Amington, Staffordshire B77 3QU | 0182751114 | |
| Motion IT Consulting Ltd | Unit S3,Keighley Business Centre, South Street, Keighley BD21 1SY | 01535 358161 | |
| MotoScotland.com | The Maltland, Inveraray, Argyll PA32 8XG | 01499 320 460 | |
| Movoda Telecom Ltd | Saville Court, Saville Place, Clifton, Bristol BS8 4EJ | 0117 40 30 750 | https://www.movoda.co.uk/ |
| MPL Systems Ltd | Innovation Centre, Warwick Technology Park, Warwick CV34 6UW | 01926623500 | |
| MPR IT Solutions Ltd | Unit 1, Wotton Trading Estate, Wotton Road, Ashford TN236LL | 0800 0 302030 | |
| MPS Networks | https://www.mpsplc.co.uk/ | ||
| Mps-Multiple Prime Solutions Ltd | 12, Darley Abbey Drive, Darley Abbey, Derby DE22 1DZ | 07477844223 | |
| MPSS | 3 Knowsley Street, Rochdale OL12 0PY | 07460653918 | |
| MR Cloud Ltd | 10 Larkspur Gardens, Hedge End, Southampton SO30 0GS | 07769110272 | |
| Mr George Group Ltd | 3 Mill Street, Glasgow G40 1LT | 03301174427 | |
| Mrd Technologies Ltd | Swan House, Wincham Lane, Wincham, Northwich CW9 6GG | 01606 532853 | |
| MRT | Millstone Barn, Grovewood Vew, Main Road, Wharncliffe Side, Sheffield S35 0DQ | 01144910799 | |
| MRT Technologies Ltd | 67 Chorley Old Road, Bolton BL1 3AJ | 01204 306 357 | |
| MS Bath IT LTD | 30 Gay Street, Bath BA1 2PA | 01225 486100 | |
| Ms3 Networks Ltd | Owen House, Owen Avenue, Priory Park West, Hessle HU13 9PD | 01482221721 | https://www.ms-3.co.uk/ |
| MSA Systems Ltd | Chemix Buildings, Dudley Road, Halesowen B62 8EB | 0121 585 0662 | |
| Msc IT Solutions Ltd | Richmond House, 1 Lowthian Road, Hartlepool, Hartlepool TS24 8BH | 01429225300 | |
| MSH Group Ltd | 4 Farthing Court , Cambridgeshire,, St Ives PE27 5JJ | 07375497173 | |
| Microtalk Europe Ltd | Westworld West Gate, London W5 1DT | 02084972000 | |
| MT Services Computer Systems Ltd | 1 Sandy Hill Park, Amington, Tamworth B77 4DU | 0182762155 | |
| MTC Communications | King Buildings, 152 Albertbridge Road, Belfast BT5 4GS | 02890 460 440 | |
| Mtech Communications Ltd | Church Lane, West Parley BH22 8TR | 03333233888 | |
| M-Tech Systems Ltd | Red Lion House, Magham Down, Hailsham BN27 1PN | 08450 511155 | https://www.mtechsystems.co.uk/ |
| Mulraney Group Ltd | Inchview House, Kelliebank, Alloa FK10 1NT | 01259 720 444 | |
| Multidata (Europe) Ltd | Unit 2, Orchard Business Park, Shrivenham, Swindon SN6 8EY | 0845 555 3322 | |
| Multi-Mix IT Ltd | Archer House, Britland Estate, Nortbourne Road, Eastbourne BN22 8PW | 01273284300 | |
| Multinetwork Ltd | Hawthorns House, Halfords Lane, West Bromwich B66 1BB | 0870 861 0048 | |
| MultiPRO Ltd | 1 Blomfield Dale, Binfield, Berkshire RG42 1FY | 01344 641 627 | |
| Murphx Innovative Solutions Ltd | Eastleigh House, Upper Market Street, Eastleigh, Hants SO50 9FD | 0870 034 9100 | |
| Murro Brothers Ltd | 56 Captain Street, GREENOCK PA15 4LQ | 01475 788200 | |
| Musicboxset Ltd | 33 Church Lane, Bolton BL5 3PP | 01473599019 | |
| Mutu Ltd | Mutu Ltd, Herons Way, Chester Business Park, Chester CH4 9QR | 0844 4457500 | |
| MWC Communications Ltd | 8 Belbins Business Park, Cupernham Lane, Romsey SO51 7JF | 02037279530 | |
| Mxn Communications Ltd | 18 Marshland Grove, Stoke on Trent ST6 6UT | 0333 3580049 | |
| My Business Communications Ltd | 3 Acorn Business Park, Northarbour Road, Cosham, Portsmouth PO6 3TH | 0333 444 0556 | |
| My Comms Technical Services Ltd | Unit 9c Swan Lane Business Park, Newmarket CB8 7FN | 084444101021 | |
| My Communications Ltd | 27 Old Gloucester Street, London WC1N 3AX | 08444 100 015 | |
| My IT Wizard Ltd | 48 Elmshurst Gardens, Tonbridge TN10 3QU | 01732361234 | |
| My Network Point Ltd | 451 Stoneleigh Avenue, newcastle NE12 8XR | 07932717997 | |
| My Phone Company (UK) Ltd | South Court, Sharston Road, Manchester M22 4SN | 01613580060 | |
| My Telecom Group LTD | 902 Victory Business Centre, somers road north, portsmouth PO1 1PJ | 0333 123 1383 | |
| MyComms Ltd | Borough Hill Farm, Daventry NN11 4NG | 01327828281 | |
| MyDigitalMedia Ltd | Unit 1B, HB House, Ditton Road, Widnes, Cheshire WA8 0WS | 0151 601 9515 | |
| myITDepartment | Unit 16 Crescent Business Park, Lisburn BT282GN | 02890998792 | |
| myphonebox.net | 26 Westgate, Old Malton, Malton YO177HE | 07772240982 | |
| MyServerNetworks Ltd | 17 High Street, Olney Office 8, 17 High Street, Olney MK46 4EB | 07479637253 | |
| Myson Consulting Ltd | Saddleworth Business Centre, Huddersfield Road, Delph, Oldham OL3 5DF | 03452605525 | |
| Mystar Seven Ltd | 82 Hindrey Road, London E5 8HQ | 02085337225 | |
| Mysuperfast Ltd | 3, Barfleur Crescent, Newport NP20 2QU | 07980985940 | |
| MyVoipTraffic | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | https://www.myvoiptraffic.com/ |
| N.I Technology Ltd | 58 Howard Street, Belfast BT1 6PJ | 02890994995 | https://www.ni.technology/ |
| N.I. Business Communications Ltd | Unit 1E Plaskets Close, Kilbegs Business Park, Antrim BT41 4LY | 03309000900 | |
| NAC Engineering Services UK Ltd | 1-2 Thistle Court, Thistle Street, Edinburgh EH2 1DD | 0131 240 8200 | |
| Naglotech Ltd | Clacton Road, St Osyth CO16 8PA | 01255 745745 | |
| Naked Servers Ltd | Unit 9 Holbrook Commerce Park, Holbrook Close, Sheffield S20 3FJ | 01142945369 | |
| Naked Telecom Ltd | 70 West Coker Road, Yeovil BA20 2JA | 01935200210 | |
| NAlexis&Co Ltd | 28, Townson Avenue,Northolt, London UB5 6PP | 07949248435 | |
| Names.co.uk | https://www.names.co.uk/ | ||
| Namesco Ltd | Acton House, Perdiswell Park, Worcester WR3 7GD | 0845 3633630 | |
| Nammit Networks Ltd | Unit 21 Daish Way, Dodnor Industrial Estate, Newport PO30 5XJ | 01983770000 | |
| NAS UK Ltd | South Court, Sharston Road, Manchester M22 4SN | 0870 8034654 | |
| NatCon Network Services | NatCon House, 41 Godsey Lane, Market Deeping, Peterborough PE6 8HY | 01778 341613 | |
| Nathan Gallimore-King | 179 Wellington road, Liverpool L8 4TX | 01512161997 | |
| Nation Wilcox Systems Ltd | St. Michaels House, 196 Boldmere Road, Sutton Coldfield B73 5UE | 01213544345 | |
| National Business communications Ltd | International house, 12 constance street, London E16 2DQ | 07491962079 | |
| National Power Energy Company | Windmill Hill Business Park, Whitehill Way, Swindon SN5 6PB | ||
| Nationwide Telephone Assistance Ltd | Ivy Lodge Farm, 179 Shepherds Hill, Harold Wood, Romford RM3 0NR | 0800 170 0000 | https://www.nta.co.uk/ |
| Nationwide Telephone Assistance Ltd | Ivy Lodge Farm, 179 Shepherds Hill, Harold Wood, Romford RM3 0NR | 01708 320000 | https://www.nta.co.uk/ |
| Natpoint Ltd | Edgware House, 389 Burnt Oak Broadway, Edgware HA8 5TX | 02089510050 | |
| Natural Enterprise LTD | Natural Enterprise, Northwood House, Ward Avenue, Cowes, Isle of Wight PO31 8AZ | 01983 201560 | |
| Natural Retreats | 51 Water Lane, Wilmslow SK9 5BQ | 01625 533 370 | |
| Navertech Ltd | Naver House, Thurso KW14 7QA | 01877 892892 | |
| Navisite Europe Ltd | DST House, 5th Floor, St Mark's HIll, Surbiton, London KT6 4QD | 01225840538 | |
| NBCN plc | Unit 8, Scotlands Industrial Estate, London Road, Coalville LE67 3JJ | 0844 375 5730 / 01332 647716 | |
| NCI Systems Ltd | 2 Rydens Road, Walton-on-Thames, Surrey KT12 3BS | 01932 260 505 | https://www.nci.co.uk/ |
| NCI Technologies Ltd | 8A Waterside House, Falmouth Road, Penryn, Falmouth, Cornwall TR10 8BE | 01326 379 497 | |
| NCS Group Ltd | 65 Rodney Street, Glasgow G4 9SQ | 0141 353 0000 | |
| NCS Network Communications Solutions | https://www.ncs-ltd.com/ | ||
| NCS Support Services Ltd | St John's Court, Bacup Road, Rawtenstall, Lancashire BB4 7PA | 01706 239 000 | |
| Ndeavours Ltd | 79a Wilslow Road, Handforth, Wilmslow, Cheshire SK9 3EN | 01625 528867 | |
| NDG Technology Ltd | Reginson House, Whitacre Industrial Estate, Whitacre Road, Nuneaton CV11 6BX | 01162983168 | |
| NE Network Solutions | 113 Colling Avenue, Seaham SR7 8AQ | 07521183400 | |
| NE Solutions Ltd | Technical Centre, Derwent Street, Chopwell, Tyne & Wear NE17 7HY | 01207 565 950 | |
| Nebula IT Services Ltd | Unit 10a, Church Farm Business Park, Corston, Bath BA2 9AP | 01454 534009 | |
| Nebular Cloud LTD | 5 Arbour Close, Macclesfield SK10 2JA | 01625837990 | |
| Nectar Cloud Ltd | 54A High Street, Redbourn, St Albans AL3 7LN | 0845 060 3030 | https://nectarcloud.co.uk/ |
| Need More Time Ltd | Amphenol Business Complex, Thanet Way, Whitstable, Kent CT5 3SB | 020 3303 3303 | https://www.needmoretime.co.uk/ |
| NEG Technologies Ltd | Framlingham Technology Centre, Station Road, Framlingham IP13 9EZ | 01728 726 633 | |
| Nemo Group (UK) Ltd | Unit 8 Whittle Court, Knowlhill, Milton Keynes MK5 8FT | 08000092112 | |
| Neo12 Ltd | Empire House, Empire Way, Wembley HA9 0EW | 08444142502 | |
| Neon Digital Document Solutions Ltd | Suite 301 Mill Studio Business Centre, Crane Mead, Ware SG12 9PY | 01920 444 220 | |
| NEON360 Ltd | Neon 360 Ltd, 240 Grove Lane, Handsworth, Birmingham B20 2EY | 08448733302 | |
| Neos Comms | 207 Liverpool Road, Cadishead, Manchester M44 5BZ | 0161 7778 8111 | |
| Neos IT Ltd | 2nd Floor, 123 Minories, LONDON EC3N 1NT | 02074886150 | |
| Neo-Tel Ltd | Newton Hall, Town Street, Newton, Cambridge CB2 7ZE | 01223 872 055 | |
| Neoteric Networks Ltd | Building 67, Europa Business Park, Bird Hall Lane, Stockport SK3 0XA | 0161 393 5700 | |
| Nep Connect Ltd | Unit 1/2 Whitehall Av, Kingston, Milton Keynes MK10 0AX | 01908 865500 | |
| Nerdster Ltd | Suite 153 Milton Keynes Business Centre, Foxhunter Drive, Linford Wood, Milton Keynes MK14 6GD | 020338587191 | |
| Net Builder Ltd | 7 Beecham Court, Pemberton Business Park, Wigan WN3 6PR | 01905770882 | |
| Net Essence Ltd | 129 Arlington Drive, Carshalton SM5 2EU | +44 (0)20 3137 3719 | |
| Net Platforms Ltd | 86-90 Paul Street, London EC2A 4NE | 02079939035 | |
| Net Pro | 1 Carnany Court, Ballymoney BT53 7ER | 07783 793606 | |
| Net Solutions Europe Ltd | 870 The Crescent, Colchester CO4 9YQ | 020 3161 6000 | https://www.nse.co.uk/ |
| Net Support UK Ltd | Riverside Court, Beaufort Park Way, Chepstow NP16 5UH | 02920 022 300 | |
| Net Technical Solutions Ltd | The Millennium Centre, Crosby Way, Farnham, Surrey GU9 7XX | 01252 235235 | |
| Net Technics Comms Ltd | 49a Essendene Road, Caterham CR3 5PB | 01883708480 | |
| Net Telecoms Ltd | Narramore House, Waterrow, Taunton, Somerset TA4 2BG | 0845 5199 380 | |
| Net1 (NI) | https://net1.co.ni/ | ||
| Net365 Ltd | 167-169 Sunbridge Road, Bradford BD1 2HB | 01274900100 | |
| Net3Security Ltd | 152-154 Coles Green Road, London NW2 7HD | 0845 130 4680 | |
| Netarcs Ltd | 8-10 pembroke buildings, scrubs lane, london NW10 6RE | 07714758293 | |
| Netavo Global Communications Ltd | The Old Hall, Market Place, Hornsea, Hull HU18 1AW | 03331 123 111 | |
| Netcalibre Ltd - | Unit F53, Waterfront Studios, 1 Dock Road, London E16 1AH | 020 3026 2626 | |
| Netcall Solutions Ltd | 1st Floor, 14 Church Street, Iikley, West Yorks LS29 9DS | 01202 065065 | https://www.netcallsolutions.co.uk/ |
| Netcall Telecom Ltd | 1st Floor, Building 2, Peoplebuilding Estate, Maylands Avenue, Hemel Hempstead HP2 4NW | 03303336100 | |
| Netcentral Solutions Ltd | Unit 3G, Snetterton Business Park, Harling Road, Snetterton NR16 2JU | 01953859805 | |
| Netcloud9 | https://www.netcloud9.co.uk/ | ||
| Netco Consulting Ltd | 2 Mulberry Place, Pinnell Road, London SE9 6AR | 02033580500 | |
| Netco IT Services Ltd | 2 Mulberry Place, Pinnell Road, London SE9 6AR | 02033580500 | |
| Netco Networks Ltd | 101 High Street, Tring, Herts HP23 4AB | 01442 381 381 | |
| Netcom Solutions & Services Ltd | Coveham House, Downside Bridge Road, Cobham, Surrey KT11 3EP | 01932 588774 | |
| Netcom Technologies Ltd | 141-145 Abbeydale Road, Sheffield S7 1FE | 0114 321 6146 | |
| Easiphone Ltd | https://www.netcommgrp.com/ | ||
| Netcoms.co.uk Ltd | One Dunston Court, Dunston Road, Chesterfield S41 8NL | 0844 887 0287 | |
| Netcoms.co.uk (Holdings) Ltd | Dunston Court, Dunston Road, Chesterfield S41 8NL | 0844 887 0287 | |
| Netconnection Systems Ltd | Green Dragon House, 64-70 High Street, Croydon CR0 9XN | 020 8649 6200 | |
| Netconsult Ltd | Holden House, Rathbone Place, London W1T 1JU | 02033936476 | |
| Net-Ctrl Ltd | Comms House, Cromwell Court, 5 GreyFriars Road, Ipswich IP1 1UP | 01473 281 211 | |
| Netdatatel Ltd | 4 North Guildry Street, Elgin IV30 1JR | 01343 811 800 | |
| NETECH IT Solutions LTD | 15 The Glade, North Walbottle, Newcastle upon Tyne NE15 9XJ | 01912676766 | |
| Neteffekt Ltd | Unit 1 Park Farm Barns, Packington Lane, Stonebridge CV7 7TL | 0333 939 0013 | |
| Netfuse Telecom Ltd | Unit 11 Hove Business Centre, Fonthill Road, Hove, Sussex BN3 9HA | 056 0004 5001 | https://www.netfuse.net/ |
| Neticonic Ltd | 75 Corporation Street, St Helens, Merseyside WA10 1SX | 01744 762 020 | |
| Netifi | 12 Beauly Place, West Mains, East Kilbride G74 1DD | 07858933780 | |
| NetISP LTD | c/o NetISP Ltd, 5 SheepMarket, Spalding PE11 1BH | 01775 757 000 | |
| Netitude Ltd | Unit H1 Baywell House,, Tucker Close, Frome BA11 5LS | 01373547036 | |
| Netknow Ltd | 4 Gatchell Meadow, Trull, Taunton, Somerset TA3 7HY | 01823 257240 | |
| Netkonect Communications PLC | Dissolved January 2011. | ||
| Netmatters Ltd | Unit 11 Penfold Drive, Wymondham NR18 0WZ | 01603704020 | |
| Netmetix Ltd | 4 Sycamore Court, Birmingham Road, Allesley, Coventry CV5 9BA | 024 7640 8100 | |
| Netnorth Ltd | Unit 7 Queensbrook, Bolton Technology Exchange, Bolton, Lancashire BL1 4AY | 01204900700 | |
| NetOmnia Ltd | 31 Radley road, Abingdon OX14 3PL | https://netomnia.com/ | |
| Netonda Ltd | 71-75, Shelton Street, London WC2H 9JQ | 01483388500 | |
| Netopian Ltd | Unit 50, Louis Pearlman Centre, Goulton Street, Hull HU34DL | 01482333170 | |
| Net-Phone | https://www.net-phone.net/ | ||
| Netphone Communications Ltd | Office 220, 321-323, High Road, Chadwell Heath RM66AX | 02031501717 | |
| Netplan Internet Solutions Ltd | The Techno Centre, Puma Way, Coventry CV1 2TW | 08707 518 345 | |
| Netpremacy Ltd | 100 Wellington Street, Leeds LS1 4LT | 0113 237 3072 | |
| Netpresto Ltd | 9-11 Wellington Street, Gateshead, Tyne & Wear NE8 2AJ | 0191 478 2233 | |
| Netresult.uk.com Ltd | The Old Post Office, Upton, Andover, Hants SP11 0JS | 01264 736 770 | |
| Netronix Ltd | Netronix House, Wigeon Grove, Apley, Telford, Shropshire TF1 6GZ | 01952 898 666 | |
| Netserv Internet Solutions Ltd | 51a Station Road, Birmingham B377AB | 01217703730 | |
| Netserve Ltd | Bellevue House, 4 Bellevue Road,, Southampton SO152AY | 02380000999 | |
| Netservers Ltd | 21 Signet Court, Swann Road, Cambridge, Cambridgeshire CB5 8LA | 01223 446000 | |
| NetServices Plc | 30 Mowden Rd, Sandpiper Quay, Salford M3 3EZ | 0870 1630 143 | |
| Netstar UK Ltd | Jameson House, 146-148 Clerkenwell Road, Farringdon, London EC1R 5DG | 020 7101 0545 | |
| Netteam Tx Ltd | 12 Kingfisher Court, Hambridge Lane, Newbury, Berkshire RG14 5SJ | 01635 262 560 | |
| Netteam Tx Ltd | 12 Kingfisher Court, Hambridge Lane, Newbury, Berkshire RG14 5SJ | 01635 262 560 | |
| Nettel Ltd | 35 Farrow Fordh, Roche, St Austell PL26 8FP | 07957065908 | |
| Net-Telco | https://www.net-telco.net/ | ||
| nettelecom Communications Services Ltd | Block A Southgate Office Village, 284 Chase Road, Southgate, London N14 6HF | 02089205270 | |
| Nettitude Ltd | 1 Jephson Court, Tancred Close, Leamington Spa CV31 3RZ | 08455200085 | |
| Netuity Networks Sp. z o.o. | al. Wincentego Witosa 16, Lublin 20-315 | 0+1.888.890.8905 | |
| NetVector Consulting Ltd | Chequers Barn, Bough Beech, Edenbridge, Kent TN8 7PD | 01732 743 300 | |
| NetvisionIP Ltd | 15 Kings Road, Calf Heath, Wolverhampton WV10 7DU | 01902 585 301 | |
| Netvisl | Core, Brown St, Manchester M2 1DH | 03308080155 | |
| Net-Voice | http://www.net-voice.net/ | ||
| NetWeaver.com Ltd | Unit 11, Mead Way, Padiham, Burnley BB12 7NG | 01282901000 | |
| Network 79 Ltd | Office 6b KPC House, Canterbury Road, Ashford TN24 0BP | 01233270270 | |
| Network and Internet Management Services | Thorntree House, Springholm, Castle Douglas, Dumfriesshire DG7 3LP | 01556 510030 | |
| Network Billing Services Ltd | Exchange House, 1 Selden Hill, Hemel Hempstead HP2 4TN | 0800 508 8880 | http://networkbillingservices.co.uk/ |
| Network Billing Services (NBS) Ltd | Network House, 36-38 Thornhill Park Road, Southampton SO18 5TQ | 023 8047 5900 | |
| Network Bridge Solutions Ltd | Unit G38B Waterfront Studios, 1 Dock Road, London E16 1AH | 02036960535 | |
| Network CCTV Ltd | 316, Blackpool Road, Fulwood, Preston PR2 3AE | 01253533555 | |
| Network Communications Group | https://www.netcomms.co.uk/ | ||
| Network Communications Solutions Ltd | 65, Rodney Street, Glasgow G49SQ | 01413530000 | |
| Network Connect Ltd | Egret Mill, 162 Old Street, Ashton Under Lyne, Lancashire OL6 7ST | 0161 2142000 | http://www.networkconnect.co.uk/ |
| Network Consolidation & Infrastructure Services Ltd | Unit 12, Swan Lane Business Park,, Swan Lane,, Exning, Newmarket CB8 7FN | 01638578913 | |
| Network Cube Ltd | Holly Cottage, Farm Road, Great Oakley CO125AL | 0844 249 2854 | |
| Network Data Services Ltd | Unit 18 Centenary Park, Skylon Central, Rotherwas, Hereford HR26FJ | 01432266364 | |
| Network Europe Group Ltd | 14 The Capricorn Centre, Cranes Farm Road, Basildon, Essex SS14 3JJ | 08444 771 771 | |
| Network Extender Technologies Ltd | Meridian House, Road One, Winsford, Cheshire CW7 3QG | 01606 868100 | |
| Network Fusion LLP | The Hopkiln, Bury Court, Bentley, Farnham GU10 5LZ | 02031312220 | |
| Network I Ltd | 227 Berwick Avenue, Slough, Berkshire SL1 4QT | 020 8230 2113 | |
| Network Integration Technologies LLP | carrwood park, leeds LS154LG | 01133410123 | |
| Network Integrity Services Ltd | PO Box 102, Bramhall, Stockport, Cheshire SK7 1YJ | 0345 004 7258 | https://www.nis-it.co.uk/ |
| Net-Work Internet Ltd | Technology House, Rhewl Ruthin, Denbighshire, North Wales LL15 1TN | 033 0220 2253 | https://net-work.net/ |
| Network IT Professionals Ltd | 45 Cattistock Road, London SE9 4AW | 02030517570 | |
| Network IT Systems Ltd | 1 North St, Dudley DY2 7DT | 08452 600 286 | |
| Network Maintenance Ltd | Unit 4, Snowhill Business Centre, Copthorne RH10 3EZ | 01342714301 | |
| Network Needs Ltd | Airmed House, Edinburgh Way, Harlow, Essex CM20 2ED | 0845 8059383 | |
| Network Rail Infrastructure Ltd | 1 Eversholt Street, London NW1 2DN | 020 7557 8000 | https://www.networkrail.co.uk/ |
| Network ROI Ltd | Stobo House, Midlothian Innovation Centre, Edinburgh EH25 9RE | 01315102210 | |
| Network Sales & Solutions Ltd | Nycomm Agecroft Road, Pendlebury, Swinton, Manchester M27 8SB | 0161 925 1900 | |
| Network Services | Sarisbury Business Park, 33a Painswick Close, Sarisbury, Southampton SO31 7EQ | 08000 747700 | |
| Network Services.com Ltd | Riverside House, 1 Place Farm, Wheathampstead AL4 8SB | 0845 678 6656 | https://www.nsltelecom.co.uk/ |
| Network Services.com t/a NSL Telecom Management | https://www.nsltelecoms.co.uk/ | ||
| Network Strategy Ltd | 330 High Holborn, London WC1V 7QT | 020 7566 1185 | |
| Network Support London LTD | Southbridge House, Southbridge Place, Croydon, Surrey CR0 4HA | 0844 884 5196 | |
| Network Support Solutions Ltd | Suite A, Mercury House, Shrewsbury Business Park, Shrewsbury SY2 6LG | 01743 290 588 | |
| Network Telecom (UK) Ltd | Communications House, Hadley Park, Telford TF1 6QJ | 0800 097 6543 | https://www.networktelecom.co.uk/ |
| Network Telecom Solutions LLP | Communications House, Hadley Park, Hadley, Telford TF1 6QJ | 0345 4500333 | |
| Network Xperts Ltd | Booths Hall, Booths Park, Chelford Road, Knutsford WA16 8GS | 01616942300 | |
| Network999 ltd | 59 breck lane, sheffield S25 2LJ | 01909518275 | |
| Net-workedcouk Ltd | Unit 5F, Bestwood Business Park, Off Park Road, Bestwood Village, Nottingham NG6 8TQ | 0115 822 0036 | |
| Net-Work-M Ltd | Saffron House, Gaddum Road, Altrincham, Cheshire WA14 3PD | 0870 444 6564 | |
| Networks Direct PLC | P.O. Box 378, Peterborough PE2 6FY | 08708 100 000 | |
| Networks First Ltd | Number One Paper Mill Drive, Church Hill South, Redditch, Worcestershire B98 8QJ | 0845 850 1177 | |
| Networth Telecom | 33 Avenue Duquesne, Paris 75007 | +33 144 117115 | |
| Networx3 | https://www.networx3.co.uk/ | ||
| Netwrx Ltd | The Old Cow Barn, Fearby Cross, Ripon HG4 4NE | 08002707980 | |
| Neutrality Managed Services Ltd | 4.2.2, The Leathermarket, Weston Street, London SE1 3ER | 07736561981 | |
| Neutrino Networks Ltd | 1 Cornhill, London EC3V 3ND | https://www.neutrinonetworks.co.uk/ | |
| Nevcom Ltd | 8 Dungoil Avenue, Glasgow G68 9BQ | 08456436451 | |
| Nevis Computers Ltd | 16 Wool Gate, Cottingley Business Park, Bingley, West Yorkshire BD16 1PE | 01274 550910 | |
| New Call Telecom Ltd | 3rd Floor, 27A Floral Street, London WC2E 9EZ | 020 7195 5050 | |
| New Forest Telecom | 1st Floor, Coronation House, Queen Street, Lymington, Hampshire SO41 9NH | 01590 688 666 | |
| New Image Communications Ltd | 505 PINNER ROAD, HARROW HA2 6EH | 01895450622 | |
| New Land Solutions Ltd | 102 Marmion Road, Southsea PO5 2BB | 0845 130 4289 | https://newland.solutions/ |
| New Media Software Ltd | 1 Canute Road, Southampton SO14 3FH | 02380 382 903 | |
| New Prospect Business Solutions Ltd | 29 Welbeck Road, Maidenhead, Berkshire SL6 4EB | 0870 116 7676 | |
| New Star Networks Ltd | Unit 9, 14 Station Road, Henley-on-Thames, Oxfordshire RG9 1AY | 08000 546200 | |
| New Vision Telecom Ltd | 466 Cranbrook Road, Ilford, Essex IG2 6LE | 02081236322 | |
| New Wave IT Consulting Ltd | 18 Brigantia Gardens, Scarborough YO12 4LH | 01723 643001 | |
| New World Netcom Ltd | Brackendale House, The Street, Ashford, Kent TN25 5PF | 01233 668 690 | |
| New World Network Services Ltd | 177 Hook Road, Surbiton, Surrey KT6 5AR | 0208 407 5757 | |
| Newark Solutions Ltd | 14 Oldbridge Way, Bilsthorpe, Newark NG22 8UY | 01636362361 | |
| Newbury Internet Services | 23 Kingsland Grange, Newbury RG14 6LH | 01635 569123 | |
| Newcmi Ltd | 6 Pilot House, Pilots View, Heron Road, Belfast BT3 9LE | 02890735600 | |
| Newenden Associates Ltd | 57 Bower Place, Maidstone, Kent ME16 8BG | 01622 620 800 | |
| NewFox Ltd | 20 Baildon Mill, Northgate, Baildon, West Yorkshire BD17 6JX | 01274 294 074 | |
| Newgen IT Services Ltd | Unit 2 The Stables, 130 High Street Irchester, Irchester NN29 7AB | 01933 426129 | |
| Newman Business Solutions | Newman House, Farningham Road, Crowborough, East Sussex TN6 2JR | 01892 664155 | |
| Newmarket Computer Services Ltd | 84 The Street, Kirtling, NEWMARKET CB89PB | 01638590455 | |
| Newreg Ltd | Recycling Lives Centre, Essex Street, Preston PR1 1QE | 01772665942 | |
| Newt Communications Ltd | Newt Communications Ltd, 20-22, Wenlock Road, London N1 7GU | 07340755685 | |
| Newton Allan Ltd | 6 Hart Hill Crescent, Full Sutton, York YO41 1LX | 0+441904261110 | |
| NewVoiceMedia Ltd | NewVoiceMedia House, Jays Close, Basingstoke, Hants RG22 4BS | 020 7785 8888 | https://www.newvoicemedia.com/ |
| Nexbridge Communications Ltd | 5th Floor, Oxford Place, 61 Oxford Street, Manchester M1 6EQ | 0345 680 0800 | https://nexbridge.co.uk/ |
| Nexcom Communications (Mobile) Ltd | 18-20 Stoke Road, Slough SL2 5AG | 020 7517 0990 | |
| Nexet Ltd | 14 Sandringham Close, Seaford BN253EB | 01323897307 | |
| NexGen Business Ltd | 38 First Avenue, Bexleyheath, Kent DA7 5SX | 0203 362 4318 | |
| NexGen IT Solutions Ltd | The Apex, 2 Sheriffs Orchard, Coventry CV1 3PP | 0121 270 4984 | |
| Nexsis Comms Ltd | 59 Longfield Lane, IIkeston, Derby DE7 4DX | 08000 803080 | |
| Next Business Telecom Ltd | Level 2, 48-54 Moorgate, London EC2R 6EJ | 0800 054 6642 | |
| Next Communications | https://www.nextcomms.co.uk/ | ||
| Next Communications and Security Ltd | 449 Millbrook Road West, Millbrook, Southampton, Hampshire SO15 0HX | 02380 764 454 | |
| NeXT I.S. Ltd | Cambridge House, 67-69 Woodham Lane, New Haw, Surrey KT15 3ND | 0870 111 8080 | |
| Next Telecom | https://www.nexttelecom.co.uk/ | ||
| Next Theme Ltd | 5 Pine Hill, Worle, Weston-super-Mare, North Somerset BS22 9DN | 01934404045 | |
| Next Vision Ltd | 1 Mann Island, 3rd Floor, Liverpool L3 1BP | 0151528 9333 | |
| Nextcall Telecom PLC | 10 Stratton Street, London, W1X 5FD | 020 7731 3300 | https://www.nextcall.co.uk/ |
| Nextec (UK) Ltd | Tithe Barn, Salwarpe, Droitwich, Worcester WR9 0AH | https://www.nextec.uk.com/ | |
| Nextgen Digital Ltd | 58 Strawberry Ave, Leeds LS251EE | 01133506116 | |
| NextGenAccess Ltd | The Orangery, Seckford Hall Road, Woodbridge, Suffolk IP12 4DA | 020 8778 7338 | |
| Nextiraone UK Ltd | Aldershaw Hill, Claypit Lane, Lichfield WS14 0AQ | 01276 804 074 | |
| Nexus GS Ltd | C11 Generator Wharf, Electric Wharf, Coventry CV1 4JL | 024 7622 3865 | |
| Nexus IP Ltd | 278 Chase Road, Southgate N14 6HA | 0345 200 1770 | https://nexusip.com/ |
| Nexus IP Network Services LLP | 278 Chase Road, London N14 6HA | 03452001770 | |
| Nexus Open Systems Ltd | Vale House, Pynes Hill, Rydon Lane, Exeter EX2 5AZ | 01392205095 | |
| Nexus Psl Ltd | 30 Stamford Street, South Bank, London SE1 9LQ | 020 3397 6868 | |
| Nexus Technology Services Ltd | 126 Great Lime Road, Newcastle upon Tyne NE126RU | 01914661050 | |
| Nexus Telecommunications Ltd | Zicon House, Belgrave Street, Leeds LS2 8DD | 0844 414 2001 | https://www.nexusuk.com/ |
| NFON UK Ltd | 140 Wales Farm Road, London W3 6UG | 020 3740 6740 | https://www.nfon.com/ |
| NG Bailey IT Services Ltd | 7 Brown Lane West, Leeds LS12 6EH | 0845 126 1266 | |
| ng experts ltd | 329-339 Putney Bridge Road, London SW15 2PG | ||
| NG Network Consultancy | 13 Titmuss Avenue, Thamesmead, London SE28 8DH | ||
| Ng Telecom Ltd | Aldgate Tower, Leman Street, London E1 8FA | 0207180900 | |
| NGC Network Services Ltd | 1285 Century Way, Thorpe Park, Leeds LS15 8ZB | 0844 980 0340 | https://www.ngcnetworks.co.uk/ |
| NGN Communications Ltd | Salisbury House, 81 High Street, Potters Bar, Herts EN6 5AS | 01707 291250 | |
| NGN Telecoms Ltd | 52 Grosvenor Gardens, London SW1W 0AU | 020 7824 5152 | |
| NGO Consulting Ltd | Carlow, Heathview Road, Milford, Godalming GU8 5DF | 01428 792 222 | https://www.ngoconsulting.com/ |
| Nice Network Ltd | Comms House, Hylton Rd, Sunderland SR4 9EN | 0191 534 0140 | |
| Niftytec Ltd | 2 Herbert terrace, newport NP115BB | 08009176172 | |
| Nigel Bateman | 5 Pasture Way, Sherburn in Elmet, Leeds LS25 6LQ | 01977689630 | |
| Nike Consultants Ltd | 62-70 Tettenhall Road, Tettenhall, Wolverhampton, Wolverhampton WV1 4TH | 01902394670 | |
| Nimans Ltd | 1st Floor, Unit 6 Temple Point, Finch Drive, Leeds LS15 9JL | 0844 848 0965 | https://www.nimans.net/ |
| Nimbos Communications Ltd | First Floor, 9 Radford Crescent, Billericay CM120DU | 02071832614 | http://www.nimbos.co.uk/ |
| Nimbus Computer Solutions Ltd | Unit 3c, Heron Wharf, Heron Road, Belfast BT3 9LE | 02890080030 | |
| Nimbus Medical Ltd | Suite 4, Eastham hall, Eastham Willage, Wirral CH62 0AF | 01513280286 | |
| NimbusWeb Ltd | Talbot House, 204 Imperial Drive, Harrow HA2 7HH | 0208 845 7777 | |
| Nimvelo | https://www.nimvelo.com/ | ||
| Nine Hundred Communications Ltd | White Rose Way, Doncaster Carr, Doncaster DN4 5JH | 0845 600 4900 | |
| Nine Telecom Ltd | Pegasus House, Unit 602 Stonehouse Business Park, Stonehouse, Glos GL10 3UT | 0800 970 2999 | https://www.ninetelecom.co.uk/ |
| Nine Telecom Wholesale Ltd | Marbridge House, Enterprise Way, Edenbridge, Kent TN8 6HF | 0800 970 2999 | |
| Nine Hundred Communications Ltd | White Rose Way Doncaster Carr, Doncaster, DN4 5JH | 0845 600 4900 | |
| Ninex Telecom Ltd | 12 Marion Street, Oldham OL82AW | 07460501130 | |
| Ninja Communications Ltd | 132 St Teilo, Pontarddulais, Swansea SA4 8RE | 01792884488 | |
| Ninja Unified Communications Ltd | Cammach Business Centre, Greenbank Road, East Tullos, Aberdeen AB12 3BN | 01224 945555 | |
| Nippy Gecko IT Ltd | Block E, 286A Chase Road, London N14 6HF | 02033842135 | |
| Nirvana Intelligent Systems Ltd | Nirvana House, 89-99 High Street, Little Lever, Bolton BL3 1NA | 01204706000 | |
| NITEL | |||
| Nitrex LTD | 1 Enterprise Court, Lakes Road, Braintree, Essex CM7 3QS | 0800 612 2110 | |
| NivaCom Ltd | 6 Iona Road, Leicester LE7 1QP | ||
| Nix Communications Group Ltd | Unit 8 Wichester Hill Business Park, Winchester Hill, Romsey, Hants SO51 7UT | 0844 318 5000 | |
| Nix Networks Ltd | Unit 1, Winchester Hill Business Park, Winchester Hill, Romsey SO51 7UT | 08443185000 | |
| Nixe Ltd | Citypoint, 1 Ropemaker Street, London EC2Y 9HT | 02083707900 | |
| Nizatto Ltd | 8 Enterprise Court, Metcalf Way, Crawley RH11 7RW | 01293769823 | |
| NJK Computer Services Ltd | Fernden House, Chapel Lane, Stockton Heath, Warrington WA4 6LL | 01925 634407 | |
| Nk Computer Services Ltd | 11 WOODSIDE END, ALPERTON, WEMBLEY, MIDDX HA0 1UR | 02089036770 | |
| NKIT Systems Ltd | 1 Ladythorne Drive, Manchester M25 9RP | 01619370435 | |
| No Fuss IT Ltd | Fernhills Business Centre, Todd St, Bury, Manchester BL9 5BJ | 03300577449 | |
| No Problem Managed IT Services Ltd | 6-8 PAXTON PLACE, LONDON SE27 9SS | 02086764441 | |
| No Worries | Glanrafon Fawr, Caernarfon LL54 7PY | 01286805004 | |
| Antheus Telecom Ltd | Summersong Ashburton Road Bovey Tracey Newton Abbot TQ13 9BZ | 0845 868 5140 | |
| Noble Telecom Ltd | (dissolved January 2013) | ||
| Node4 Ltd | Millennium Way, Pride Park, Derby DE24 8HZ | 0845 123 2222 | https://www.node4.co.uk/ |
| Nodemax Ltd | 75 Springfield Road, Chelmsford CM2 6JB | 0333 990 9000 | https://www.nodemax.com/ |
| Noise Comms Ltd | 23 Salisbury Road Business Park, Salisbury Road, Pewsey SN9 5PZ | 01672565430 | |
| Nomical Ltd | First Floor, No.1 Spinningfields, Quay Street, Manchester OL16 5RD | 08443 843000 | |
| Nomis Connections Ltd | 11a Kings Road, Connections House, Fleet, Hampshire GU51 3AA | 08448 809900 | |
| Norcom Ltd | Unit 37 Old Brewery Lane, Newtownards BT23 4AD | 02891 310048 | |
| Norfolk Cloud Ltd | The Union Building, Rose Lane, Norwich, Norwich NR1 1BY | 01603574998 | |
| Norgent Ltd | 311 baldwins lane, Watford, Hertfordshire, Croxley Green WD33LA | 07814890241 | |
| Norisco Ltd | 60 Tabernacle Street, London EC2A 4NB | 020 7324 2200 | |
| Normanton Telecom Ltd | Le Fort, Church Lane, Normanton WF6 1SA | 07450359875 | |
| Normanton Telecoms Group PLC | Le Fort Church Lane, Normanton WF6 1SA | 07450359875 | |
| Normanton Telecoms Group PLC | Le Fort, Church Lane, Normanton WF61SA | 03304450078 | |
| Norsa Ltd | Unit 2 Manor Farm, Aust, Bristol BS36 4AT | 01454 632 344 | |
| North American Gateway Ltd | 140-142 King's Cross Road, London, WC1X 9DX | 020 7575 7500 | |
| North American Science Associates Ltd | Medvance House, Burn Grange, Doncaster Road, Burn, Selby YO8 8LA | 01757 270964 | |
| North East Business Systems Ltd | Unit 8, Tundry Way, Blaydon, Newcastle upon Tyne NE21 5SJ | 01916913300 | |
| North SV Ltd | Titanium 1, King's Inch Place, Braehead, Renfrew PA4 8WF | 0141 892 2001 | |
| North West Telecom Ltd | New Brunswick Street, Horwich, Bolton BL6 7JB | 0870 872 4130 | |
| Northamber PLC | |||
| Northarbour Ltd | Kao Hockham Building, Edinburgh Way, Harlow, Essex CM20 2NQ | 0845 862 0762 | |
| Northdoor plc | 1-3 Dufferin Street, London EC1Y8NA | 02074488500 | |
| Northern Parking Services (North East) Ltd | 22 Wenlock Road, London N1 7GU | 01914250317 | |
| Northern Retail Services (Scarborough) Ltd | 4c Dunslow Court, Eastfield, Scarborough YO11 2JD | 01723 581559 | |
| Northern Telecom Consultants Ltd | Suite 8, Bedale Hall, North End, BEDALE DL7 9TA | ||
| Northern Telecommunications Ltd | |||
| Northern Voip Ltd | 1 Weyland Park, Kirkwall KW15 1LP | 01856480130 | |
| Northsat Ltd | 22 Westfield Drive, Inverness IV2 5TR | 01463 795365 | |
| Northway Communications Services (UK) Ltd | Unit 1 Stations Drive, Bredon, Tewkesbury, Gloucestershire GL20 7HH | 01684 878060 | |
| Norwich City College of Further and Higher Education | IT Services, Ipswich Road, Norwich NR2 2LJ | 01603773038 | |
| Nos Communicare' Ltd | 40A Market Square, St Neots PE19 2AF | 08455240238 | |
| Not Just Computers Ltd | Broadway House, 3-5 High Street, Bromley, Kent BR1 1LF | 020 3004 2050 | |
| NoticeBoardTv Ltd | Didcot Enterprise Centre, Hawksworth, Southmead Industrial Park, Didcot OX11 7PH | 01635 881 188 | |
| Nouveau Solutions Ltd | Technology House, 15 Headley Road, Woodley, Berks RG5 4JB | 0845 055 6066 | |
| Nova Communications Ltd | Bridge Street, Derby DE1 3LA | 0845 413 0128 | |
| Nova IT Solutions | 73 Watling Street, London EC4M 9BJ | 02031028342 | |
| Nova Telecom | |||
| Novahub Ltd | Sheraton House, Castle Park, Cambridge CB1 2JD | 0845 634 1472 | |
| Novatech Ltd | Harbour House, Hamilton Road, Cosham, Hampshire PO6 4PU | 023 9232 2762 | |
| Novem Ltd | Alexandra Court, Carrs Road, Cheadle, Stockport SK8 2JY | 0800 046 9957 | |
| Novus IT Ltd | 14 Scotstoun street, Glasgow G140UL | 01419595525 | |
| Novus Networks Ltd | The Old Corn mill, Congleton Road, Siddington, Macclesfield SK11 9JR | 01260292500 | |
| Now Mobile | https://www.nowmobile.co.uk/ | ||
| Nowcomm Ltd | The Nowcomm Building, Stanier Way, Wyvern Business Park, Derby DE21 6BF | 01332 821 100 | |
| Nowtel Wholesale Ltd | Anchor Brewhouse, 50, Shad Thames, London SE1 2LY | 0871 332 9189 | http://www.nowtelcards.com/ |
| NowYoYo Ltd | 1 North Poulders Farm, Sandwich, Kent CT13 9JE | 0800 0546 111 | |
| Npower Ltd | Windmill Hill, Business Park, Whitehill Way, Swindon SN5 6PB | 01793 877777 | https://www.npower.com/ |
| NRG Telecom Ltd | Lower Ground Floor, 33 Princess Street, Rochdale OL12 0HA | 0845 120 0270 | |
| NS Optimum Ltd | Unit 7a, Jenton Road, Leamington Spa CV31 1XS | 01926880300 | |
| NSIS Systems LLP | 405 Strand, London WC2R 0NE | 020 7240 4942 | |
| NSM (Sidcup) Ltd | 1-4 The Mews, Hatherley Road, Sidcup DA14 4BH | 02083022626 | |
| NT Independent Networks Ltd | Unit 12 H20 Businsss Park, Lake View Drive, Nottingham NG15 0HD | 01159 517 000 | https://www.ntvoiceanddata.co.uk/ |
| NTE Ltd | 7 Camberwell Way, Moorside Park, Doxford International Business Park, Sunderland SR3 3XN | 0345 034 6622 | http://www.ntecoms.com/ |
| Ntel Communications Ltd | Network House, 2 Connaught Avenue, London E4 7AA | 0844 887 1688 | |
| nTrust Systems Ltd | 26 Holmethorpe Avenue, Redhill, Surrey RH1 2NL | 03331 506070 | |
| NTS Technology Partners Ltd | Deer Park House, Network Point, Range Road, Witney OX290YN | 01993777780 | |
| Nuage Communications Ltd | 20 Canal Reach, Andwell, Hook, Berks RG27 9QN | 01628 906 074 | |
| Nubiacom Ltd | Corby Enterprise Centre, Corby NN17 5EU | 01536737282 | |
| Nuco Technologies Ltd | Unit 1 Northampton Science Park, Kings Park Road, Moulton Park, Northamptonshire NN3 6LG | 0844 745 1300 | |
| Nueon IT Solutions LTD | 5 Elm Grove, Grotton, Oldham OL4 4LL | 01618832050 | |
| Number Cloak | http://www.numbercloak.com/ | ||
| Number Partner | Olympia House, Armitage Road, London NW11 8RQ | 0330 700 0123 | https://www.numberpartner.com/ |
| Number Services Ltd | Unit 3 Newton Business Centre, Newton Chambers Road, Sheffield S35 2PH | 0333 773 5060 | https://www.port5060.net/ |
| Number Solutions | |||
| Numbergroup Network Ltd | Unit 1, Ansty Court, 31 Caroline Street, Birmingham B3 1UQ | 0800 310 1010 | https://www.numbergroup.com/ |
| Numbers Direct Ltd | |||
| Numbers Directory Ltd | Delta House, Wavell Road, Manchester M22 5QZ | 0844 979 8892 | |
| Numbers Plus Ltd | Manor Coach House, Bristol Road, Keynsham, Bristol BS31 2BB | 0333 301 2233 | https://www.numbers-plus.com |
| Numbers Telecom Ltd | 43 Berkeley Square, Mayfair, London W1J 5FJ | ||
| Numbersales.com | Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ | 0800 449966 | https://numbersales.com/ |
| TelecomIQ Ltd | Upper Level, Turnbridge Mills, Quay Street, Huddersfield HD1 6QT | 033 0990 0000 | https://www.numbersiq.co.uk/ |
| Numeric Futures Ltd | 168 Holiday Street, Birmingham B1 1TJ | 0333 300 0300 | |
| Nuvoli Ltd | Home Farm House, Church Road, Elford, Staffordshire B79 9DA | 020 3375 4999 | |
| NV Integration Ltd | 242 Acklam Road, London W10 5JJ | 020 7205 2325 | |
| Nviron Ltd | Unit B, Chester Road, Runcorn WA7 3FR | 01928 809000 | |
| Nvoy Technologies Ltd | 3rd Floor News Building, 3 London Bridge Street, London SE1 9SG | 02039659631 | |
| NW Systems Group Ltd | Claddagh Business Centre, New Hall Lane, Hoylake, Wirral CH47 4BP | 0151 633 2111 | |
| NWIMS Communications Ltd | Wasdale Close, Kendall, Cumbria LA9 7JQ | 01539 234050 | |
| NWP Spectrum Ltd | PO Box, Hemel Hempstead, Herts HP2 4WA | 01442 205 500 | |
| Nxcoms Ltd | 33 Conisbrough Place, Whitefield, Manchester M45 6EJ | 01617663629 | https://nxcoms.co.uk/ |
| Nxtgen Consulting Ltd | Office 4, 19 Market Square, Sandbach CW11 1AT | 08458050901 | |
| Nycom Business Services Ltd | 8 Horizon Court, Clifton Moor, York, North Yorkshire YO30 4RB | 01904 653 383 | |
| Nye-Uk Ltd | Unit 6 Lower Edgebold, Shrewsbury SY5 8NY | 01743 861290 | |
| NYnet Ltd | Douris House, Roecliffe Business Centre, Roecliffe, Boroughbridge YO51 9NE | 01423 323 961 | |
| Nynex Communications Ltd | 4 Cromwell Court, Oldham OL1 1ET | 01616335423 | |
| Oak Telecom Ltd | 7 Albany Park, Cabot Lane, Poole, Dorset BH17 7BX | 01202 607 000 | |
| Oakford Internet Services Ltd | 9-10, Prince Maurice Court, Devizes SN10 2RT | 03302 230 230 | |
| Oakhill Voice Solutions Ltd | AU30, The Innovation Centre, Bletchley Park, Milton Keynes MK3 6EB | 01908 889490 | |
| Oakleaf Telecoms Ltd | Unit 27, Kilwee Business Park, Belfast BT17 0HD | 0800 2055576 | |
| Oasis Communication Services Ltd | 27 Nevill Street, Abergavenny NP7 5AA | 029 2061 5588 | |
| Oasis I.T. Company Ltd | Unit 17 Goldthorpe Industrial Estate, Commercial Road, Goldthorpe S63 9BL | 01709891529 | |
| Oasis Technology Ltd | 17 Ambleside Way, Nuneaton, Warwickshire CV11 6AT | 01455 240 140 | |
| O-Bit Telecom Ltd | Park House, 38 Station Road, High Wycombe, Bucks HP10 9UN | 0800 849 4949 | |
| Objective Technologies Ltd | Energy House, Crow Arch Lane Industrial Estate, Ringwood BH24 1PD | 01425205200 | |
| Oblivion Media | 184 Well Hall Road, London SE9 6SR | 01797 208037 | |
| Obsidian Networks Ltd | Chantry Court, Chester CH1 4QN | 01244569928 | |
| Ocean Data & Voice Services Ltd | 2 Ocean Quay Marina, Belvidere Road, Southampton SO14 5QY | 0845 050 5656 | |
| Ocean Digital Ltd | Clifton House, 10 Poole Hill, Bournemouth BH2 5PS | 01202 788496 | |
| Ocean Telecom Ltd | 10 Woodside Business Park, Thetford Road, Ingham, Suffolk IP31 1NR | 01284 771555 | https://www.oceantelecom.com/ |
| Ocean Telecom UK Ltd | Unit 1, Glovers Meadow, Oswestry, Shropshire SY10 8NH | 01691 661 177 | |
| Ocean Unified Communications Ltd | 110 Clifton Street, London EC2A 4HT | 0845 006 6800 | |
| Ocean Voice and Data Ltd | 6 The Matlings, Hoe Lane, Ware, Hertforshire SG12 9LR | 0870 2202768 | |
| OCM Communications Ltd | Forward House, 17 High Street, Henley in Arden B95 5AA | 01564 420 980 | https://www.ocmcommunications.co.uk/ |
| OCS-UK IT Ltd | 9 Well Lane, Barnwell, Peterborough PE8 5PF | 0844 991 0036 | |
| Octagon Communications Ltd | Octagon House, 2 Astley Court, Lockett Road, Ashton-in-Makerfield WN4 8DE | 08456 787878 | |
| Octagon Technology Ltd | 13, High Street, Branston, Lincoln LN1NB | 01522797520 | |
| Octagon Telecom Ltd | Sterling House, Langston Road, Loughton, Essex IG10 3TS | 020 3651 8000 | |
| octavian it ltd | 175 Huntingdon Street, Nottingham NG1 3NL | 0115 77 88 409 | |
| Octet Solutions Ltd | Floor 3, 35-37 Ludgate Hill, London EC4M 7JN | 07969543196 | |
| Octex | 10 Horseshoe Business Park, Lye Lane, Bricket Wood, St. Albans AL2 3TA | 07801882835 | |
| Octopus Enterprises Ltd | , 8, Sand Furrows, Ketton, Stamford PE9 3SS | 01572724185 | |
| Octopus Telecom Ltd | 8 Lombard Road, Wimbledon, London SW19 3TZ | 0800 0283 166 | https://www.octopustelecom.co.uk/ |
| Octotech Ltd | 30 Worthing Road, Horsham RH12 1SL | 01403 603103 | https://www.octotech.co.uk/ |
| Ocucon Ltd | The Old Pub, Albion Row, Newcastle upon Tyne NE61LR | 01912442444 | |
| Odigo | 40 Holborn Viaduct, London EC1N 2PB | 0330 588 8000 | https://www.odigo.com/ |
| Odyssey Systems | Lockheed Court, Preston Farm, Stockton-on-Tees TS18 3SH | 01642 661800 | https://www.odyssey-systems.co.uk/ |
| OEM Computer Systems Ltd | St Helens Lodge, 3 Parsons Lane, Sharnford LE10 3PY | 07976724833 | |
| OERS Ltd | 32 Birchdale Avenue, Heald Green, Cheadle, Stockport SK8 3ST | 0161 436 0625 | |
| Office Machine Repairs Ltd | 2 Lessingham Avenue, Clayhall, Ilford, Essex IG5 0BJ | 02085503433 | |
| Office Pro Telecoms | 139 Rooley Lane, Bradford BD5 8JH | 07548884070 | |
| Office Ready Technology Ltd | Honeycomb South, Honeycomb, Chester Business Park, Chester CH4 9QJ | 02030319800 | |
| Office Ready Technology Ltd | Honeycomb South, Honeycomb, Chester Business Park, Chester CH4 9QJ | 02030319800 | |
| Office Unlocked Ltd | 41 Lordsmead, Cranfield, Lidlington, Beds MK43 0HP | 03333 209 020 | |
| OfficeAnyplace Ltd | 42 Tamworth Road, Croydon CR0 1XU | 02082537253 | |
| OfficeTek Solutions Ltd | First Floor, 131 High Street, West Bromwich B70 6NY | 0121 525 0016 | |
| Offline GSM Ltd - | 47 Prior Street, Lewes, East Sussex BN7 1HJ | 0870 7584465 | |
| Offord Group Ltd | 58A Wisewood Road, Sheffield S6 4WD | 03333580161 | |
| Offsite IT Ltd | Unit 3, Monument offices,, Maldon Road, Woodham Mortimer, Maldon CM9 6SN | 01621 850550 | |
| Ogilvie Communications | Ogilvie Communications, Ogilvie House, 200 Glasgow Road, Stirling FK7 8ES | 01786 810 810 | |
| Ogl Computer Support Ltd | OGL Computer, Worcester Road, Worcester Road, Stourport on Severn DY13 9AT | 01299873873 | |
| Ohso Technical Ltd | Eternity House, 21-24 Hickman Avenue, Office 6, London E4 9GA | 02039635533 | |
| Oi ! Business Telecoms Ltd | Ashgrove Green Lane, Tutbury, Burton on Trent, Staffordshire DE13 9NN | 08442 470101 | |
| Olive Fixed Line Services Ltd | 1st Floor, Tal House, 575 North End Road, Wembley, Middx HA9 0UU | 0870 444 1083 | |
| Olive Unifield Communications Services Ltd | Olive House, Kings Square, High Wycombe HP11 1RX | 020 8166 4466 | |
| Ollesso Ltd | 3 Hop Gardfen Way, Garston, Watford, Hertfordshire WD25 0JN | 07809893600 | |
| OllyCom | 30 Cuerdale Sreet, Burnley BB102EP | 07486914391 | |
| Omnes Loquantur Ltd | Beacon House, Newtown, West Pennard BA6 8NL | 03333 407 710 | |
| Omni3 Communications Ltd | 2 Masons Way, Codmore Hill, Pulborough RH20 1DZ | 02039987027 | |
| Omnia Communications Ltd | 1 Eastdale Road, Liverpool L15 4HN | 01925598550 | |
| Omniis Ltd | 121 High Street, Berkhamsted HP4 2DJ | 01442299282 | |
| On Air Telecom Ltd | Westpoint, 501 Chester Road, Manchester M16 9HU | 0161 9060845 | |
| On Direct Business Services Ltd - | The Tramshed, Beehive Yard, Walcot Street, Bath BA1 5BB | 0800 0789438 | |
| On Line Systems (Northern) Ltd | |||
| On Line Systems Northern | https://www.online-systems.co.uk/ | ||
| On Telecom (UK) | http://www.ontelecomuk.com/ | ||
| On2net (Uk) Ltd | Centrix House, Keys Park Road, Hednesford WS12 2HA | 01543270215 | |
| Onbrand Group Ltd | 29-45 High Street, 4th Floor Middlesex House, Edgware HA8 7UU | 02089319300 | |
| On-Communications Ltd | The Quadrant, 99 Parkway Avenue, Sheffield S9 4WG | 08704 296745 | |
| One (UK) Ltd | Unit H3A, Dawkins Road Industrial Estate, Poole, Dorset BH15 4JY | 01202 596 520 | |
| One Big Solution | 3 Onslow Avenue, Sutton SM2 7ED | 0845 413 2600 | |
| One Call Telecom Ltd | 170 Midsummer Boulevard, Milton Keynes MK9 1BP | 03333052234 | |
| ONE CLOUD TELECOM Ltd | 71-75, Shelton Street, London, London WC2H 9JQ | 020 33 888 555 | |
| One Communication Solutions Ltd | 5 Hunters Walk, Witherley, Atherstone, Warwickshire CV9 3SU | 07872468781 | |
| One Connectivity Ltd | 10 Glover Road, Castle Donington, Derbyshire DE74 2GL | 01332 811890 | https://www.oneconnectivity.co.uk/ |
| One Education Ltd | Universal Square, No 1 Devonshire Street North, Ardwick, Manchester M12 6JH | 0844 967 1113 | |
| One Horizon Group Plc | Third Floor, Russell Square House, 10-12 Russell Square, London WC1B 5LF | 020 7509 9345 | https://www.onehorizongroup.com/ |
| One Link | 26 BURN BRAE GREEN, BANBRIDGE BT32 4GG | 07902847759 | |
| One Network Ltd | (dissolved May 2009) | ||
| One Point Telecom | One Point Telecom, 9 Sundial Court, Tolworth Rise, Tolworth, Surrey KT5 5RN | 08704 424 343 | |
| One Source Communications Ltd | 16 Commerce Road, Peterborough PE2 6LR | 0845 127 1421 | |
| One Step Telecom Ltd | 5 Jupiter House, Calleva Park, Aldermaston, Reading, Berkshire RG7 8NN | 0118 373 2015 | |
| One Stop Computers (STOKE) LTD | 173-175, London Road, Stoke on Trent ST4 5RW | 01782 847208 | |
| One Stop Itm Ltd | 49 Queen Victoria Street, London EC4N 4SA | 07944192640 | |
| One Tek Business Solutions Ltd | Merdian House, Winsford, Cheshire CW7 3QG | 0844 993 4147 | |
| One2call Ltd | Unit 16, Longacre Close, Halfway, Sheffield S20 3FR | 0800 9555 866 | |
| One36 Computing Ltd | 136 Comiston Road, Edinburgh EH10 5QN | 0131 466 7748 | |
| OneBill Telecom Ltd | PO Box 72283, London SW1P 9NW | 0844 880 0444 | https://www.onebilltelecom.com/ |
| Onebyte Ltd | 27 St Andrews Street, Norwich, Norfolk NR2 4TP | 0845 034 7760 | |
| OneCloud Networks Ltd | 302B Regal House, 70 London Road, Twickenham TW1 3QS | 020.3909.8600 | https://www.onecloudnetworks.co.uk/ |
| Onecom Ltd | Onecom House, 4400 Parkway, Solent Business Park, Fareham, Hants PO15 7FJ | 03300 240 000 | https://www.onecom.co.uk/ |
| Onega Ltd | Studio H, Container City 2, Trinity Buoy Wharf, Orchard Place, Docklands, London E14 0JY | 0870 060 1310 | |
| Onestop ITS Ltd | 32/6 Hardengreen Industial Estate, Dalhousie Road, Eskbank, Midlothian EH22 3NX | 0131 510 0100 | |
| Digital Phone Company Ltd - | Onecom House, Fareham PO15 7FJ | 01489 587200 | |
| Onetechuk Ltd | 1st floor morgan reach house, 136 hagley road, Birmingham B16 9NX | 03338001313 | |
| OneTel Telecommunications | |||
| ONEX Solutions LTD | Radford Business Centre, Radford Cres, Billericay CM12 0DP | 02030111445 | |
| onezo ltd | Ely House, Wyvern Business Park, Stephensons Way, Derby DE21 6LY | 01332207848 | |
| ONI Plc | 24 Crawley Green Road, Luton LU2 0QX | 01582 429 999 | |
| Online Assistance Ltd | White Hart Lane S/Stn, White Hart Lane, Tottenham, London N17 7RP | 020 8889 9545 | |
| Online Communications Ltd | 19-21 Kents Hill Road, Benfleet, Essex SS7 5PN | 01268 881 001 | |
| On-Line Marketing & Sales Ltd | 30 Greenlands Business Centre, Studley Road, Redditch, Worcestershire B98 7HD | 0121 222 0500 | |
| Online Support Computing | 67a Boston Manor Road, Brentford TW8 9JQ | 020 8232 1190 | |
| Online50 Ltd | Unit 57,, Sklylines Village, Limeharbour, London E14 9TS | 020 7536 7749 | |
| Onsite Connect Ltd | 40-44 Arundel Street, Portsmouth PO1 1RT | 0845 077 7071 | |
| Ontech Solutions Ltd | 4 Langford Court, Ongar Road, Kelvedon Hatch, Essex CM15 0LB | 0871 221 2671 | |
| ontel services Ltd | Unit 6, Chess Business Park, Moor Road, Chesham HP5 1SD | 01494372211 | |
| OnTime IT & Comms Ltd | Unit 3, Rigs Road, Stornoway HS1 2RF | 01851702039 | |
| Ontraq Ltd | 74 Duke Street, Chelmsford CM1 1JP | 01245 265100 | |
| Onwave UK Ltd | The Oasts, Charmans Farm, Beggars Lane, Westerham, Kent TN16 1QP | 0845 413 5999 | https://www.onwave.co.uk/ |
| Onyx Business Systems Ltd | 100 Hellesdon Park Industrial Estate, Drayton High Road, Norwich NR6 5DR | 01603414142 | |
| Oojie Ltd | 11 Redstart Avenue,, Maidstone ME15 6ZY | 02070991390 | |
| Oosha Ltd | Suite 2, The Chubb Buildings, Fryer Street, Wolverhampton WV1 1HT | 01902 702233 | |
| Oozle | https://oozle.co.uk/ | ||
| Opal IT Ltd | Media Exchange One, Coquet Street, Newcastle upon Tyne NE1 2QB | 0330 2233011 | https://www.opal-it.co.uk/ |
| Opal Telecom Ltd | Stanford House, Garrett Field, Birchwood, Warrington WA3 7BH | 0845 330 3456 | https://www.talktalkbusiness.co.uk/ |
| Opals (UK) Ltd | 10 Tesla Court, Innovation Way, Lynchwood, Peterborough PE26FL | 01733305451 | |
| Open Access Ltd | Colonial House, Station Road, Leiston IP16 4JD | 01728 832712 | |
| Open by Nature Ltd | 112-114 High Street, Rickmansworth, Hertfordshire WD3 1AQ | 0330 828 0725 | |
| Open Fibre Networks Ltd | Driscoll 2, Ellen Street, Cardiff CF10 4BP | 029 2167 8550 | https://www.ofnl.co.uk/ |
| Open IP Ltd | CPA House, 49 Bolton Road, Famworth, Bolton BL4 7JN | 0845 868 7263 | |
| Open Network Services Ltd | Windsor House, Clovelly Road, Southbourne, Emsworth, Hampshire PO10 8PF | 0845 225 3389 | |
| Open Telecom Ltd | Siddeley House, 50 Canbury Park Road, Kingston upon Thames, Surrey KT2 6LX | 020 3388 8888 | https://www.opentelecom.co.uk/ |
| Open Telecom International Ltd | |||
| OpenAIR Systems Ltd | 1 Holmbury Grove, Croydon CR0 9AN | 02081233090 | |
| OpenIP Services Ltd | Office 617,6th Floor, 120 Bark St, Bolton BL1 2AX | 03332413150 | |
| OpenITC | 44 Moorhead, Newcastle upon Tyne NE5 3AP | 0333 340 6736 | |
| Open-Link Technology Ltd | Open-Link Technology Limited, Archway House, Padworth, Near Reading RG7 5HR | 08700 500 771 | |
| OpenVoice Ltd | Tadcaster Enterprise Park, Commer House, Station Road, Tadcaster LS24 9JF | 01904 202500 | |
| Opex Hosting Ltd | 462 London Road, Isleworth, Middx TW7 4ED | 020 8326 8326 | https://www.opexhosting.co.uk/ |
| Opious Ltd | The Old School House, 9 Court Road, Cranfield MK43 0DR | 01234 819 819 | |
| Opta Networks | 2 Vincent Close, Corringham SS17 7QL | 07931111680 | |
| OptaNet Ltd | Tower Point, 44 North Road, Brighton BN11YR | 02034753611 | |
| Optic Networks Ltd | Knaresborough Technology Park, Mansa Lane, Knaresborough, Yorkshire HG5 8LF | 01423297892 | |
| Optics Internet Ltd | 4 Lockside Office Park, Lockside Road, Riversway, Preston PR2 2YB | 03300232323 | |
| Optify Mediaforce Ltd | Suite 1, 3rd Floor 11-12 St James’s Square, London SW1Y 4LB | 0333 308 0090 | https://www.optifyyourworld.com/ |
| Optimal Projects Ltd | 50 Lime Tree Avenue, Worthing BN14 0DP | 03301227220 | |
| Optimised IT Ltd | 5 Foxcovert Lane, Lower Peover, Knutsford, Cheshire WA16 9QP | 01565 722280 | |
| Optimity Ltd | https://www.optimity.co.uk/ | ||
| Optimum Calls | https://www.optimumcalls.com/ | ||
| optimus networks LTD | 19 Vernon Close, Manchester SK8 6AN | 01618505065 | |
| Optinet U.K. Ltd | Monometer House, Rectory Grove, Leigh on Sea, Essex SS9 2HL | 07825432757 | |
| Option One Communications Ltd | 4, Wilton Cottages, Doctors Hill, Ashley, Box SN13 8AT | 01225744947 | |
| Option Telecom Plc | Elstree Business Centre, Elstree Way, Borehamwood, Hertfordshire WD6 1RX | 0208 238 7873 | |
| Optionbox Ltd | Unit 5F, Carr Mills Business Centre, 919 Bradford Road, Birstall WF17 9JX | 0333 200 4680 | https://www.optionbox.co.uk/ |
| Optix Software Ltd | Poppleton House, Rose Avenue, York YO26 6RU | 01904 606 606 | |
| Opton Telecom Ltd | 255-261 Hornlane, Acton, London W3 9EH | 05603 669 724 | https://www.optontelecom.co.uk/ |
| Opus Network Services Ltd | 1st Floor, 16, South Park, Sevenoaks, Kent TN13 1AN | 01732 446644 | https://www.opusnetworks.co.uk/ |
| Opus Telecom Ltd | (Voluntary liquidation March 2018 | ||
| Opus UK Ltd | 10 Clock Court, Campbell Way, Sheffield S25 3QD | 01909 518 811 | |
| Opus Wifi Ltd | The Old Vicarage, Market Street, Castle Donington DE74 2JB | 01163440118 | |
| Orange Business Holdings UK Ltd | 217 Bath Road, Slough SL1 4AA | 020 8321 4000 | https://business.ee.co.uk/ |
| Orange Peel Intellectual Ltd | 3 Stone Pine Road, Bromham, Bedford MK43 8GF | ||
| Orange Stripe Consultancy Ltd | 39 Pure Offices, Kembrey Park, Swindon SN2 8BW | 01793 700 536 | |
| Orb Communications Ltd | |||
| Orbex Solutions Ltd | Accurist House, 44 Baker Street, London W1U 7AL | 0870 0411 411 | https://www.orbex.co.uk/ |
| Orbiss Ltd | Lowen House, Greenbottom, Truro, Cornwall TR4 8QQ | 01872 561 656 | |
| Orbital Net Ltd | County House, Station Approach, Bekesbourne, Canterbury CT4 5DT | 01227 668900 | https://www.orbital.net/ |
| Orbital Networks Ltd | 130 Cassini Drive, Swindon SN25 2LW | 0845 880 2634 | |
| OrbitalNet | https://www.orbital.net/ | ||
| Orbix UK Ltd | Old Stable Yard, 123a Station Road, Hamption TW12 2AL | 0844 875 0108 | |
| Orbtalk Ltd | Unit 4, Hove Technology Centre, Hove BN3 7ES | 033 0045 0111 | https://www.orbtalk.co.uk/ |
| Orca Telecom Ltd | 2nd Floor, 5 St John Street, Perth PH1 5SP | 0844 224 7373 | |
| Orchard Electronics (Computer Specialists) Ltd | 5 turnberry, amington, Tamworth, Tamworth B77 4NR | 07850629040 | |
| Orchard House Computers Ltd | Wood Farm Barn, The Street, Flixton NR35 1NZ | 01986 891000 | |
| Orchard ICT Ltd | Barham House, Wedhampton, Wiltshire SN10 3PZ | 01380 848 294 | |
| Orchid Electronics Ltd | Ridlington Park Farmhouse, Holygate Road, Ridlington, Oakham LE15 9AR | 01572717888 | |
| Orchid Telecom Ltd | Holygate Road, Ridlington, Oakham LE15 9AR | 01572717888 | |
| Orderly Telecoms Ltd | 27 Tamar House, Kennington Lane, London SE11 4XA | 0845 004 5413 | https://www.orderlyq.com/ |
| Organic Telecoms Ltd | ONE Cathedral Square, Blackburn BB1 1EX | 0333 023 8080 | |
| Oricom Ltd | Unit 4, 2 Cunninghame Road, Kyle Business Park, Irvine KA12 8JJ | 0844 4154888 | |
| Origin Broadband Ltd | 5 Thorne Road, Doncaster DN1 2HJ | 01302 235 060 | |
| Origin Broadband Services Ltd | Old Town Hall, Rotherham, Rotheham S60 1QX | 07595177907 | |
| Origin Solutions Ltd | 1st Floor, 2 Woodberry Grove, Finchley, London N12 0DR | 08432894116 | |
| Original Mobiles New Lcds & Parts Ltd | Suite 3 Maple House, Queensway Business Park, Queensway, Telford TF1 7UL | 07795964603 | |
| Orion Control Systems Ltd | Treetops Farm, Measham Road, Oakthorpe DE12 7RG | 01530 274455 | |
| Ortiga Support Ltd | Fairgate House, 205 Kings Road, Birmingham B11 2AA | 0333 567 7700 | |
| OryxAlign Ltd | The Shepherds Building, Rockley Road, London W14 0DA | 020 7608 7890 | |
| Oscatel Ltd | Charnwood House, Marsh Road, Bristol BS3 2NA | https://www.oscatel.co.uk/ | |
| Otra Dia Ltd | 2nd Floor, 145-157 St John Street, London EC1V 4PY | 0800 0336 444 | |
| Our IT Department Ltd | 128 - 132 Station Road, Chingford, London E4 6AB | 02037808896 | |
| Our Tech Team Ltd | Nations House, 103, Wigmore Street, London W1U1QS | 02037941414 | |
| Outersight (UK) Ltd | Unit 28, Mary Seacole Road, The Millfields, Plymouth PL1 3JY | 01752220860 | |
| Outfit Digital Ltd | 2/1 348 Cumbernauld Road, Glasgow G31 3NQ | 0141 345 0543 | |
| OutofHours | 16 Durward, East Kilbride G74 3PB | 0141 433 0492 | |
| Outsource Online LLP | 3 Plasketts Close, Antrim BT41 4LY | 02894485112 | |
| Outsourced IT Ltd | 35 Tansey End, Biggleswade SG188WL | 01767600604 | |
| Outsourced Telecom Ltd | 4 Falcon Way, Shire Park, Welwyn Garden City, Herts AL7 1TW | 0845 408 2283 | |
| OutsourceOperations Ltd | Eagle Tower, Montpellier Drive, Cheltenham GL50 1TA | 01242 244 843 | |
| Outsourcery PLC | 1 The Avenue, Spinningfields, Manchester M3 3AP | 0843 366 6060 | https://www.outsourcery.co.uk/ |
| Outsourcery Group Ltd | 1 The Avenue, Spinningfields, Manchester M3 3AP | 0843 366 6060 | |
| Outsourcevoice Ltd | Eagle Tower, Montpellier Drive, Cheltenham, Gloucestershire GL50 1TA | 01242 244843 | https://www.outsourcevoice.com/ |
| Over The Web Ltd | 22 Bower Road, Harrogate HG1 5BW | 01423789040 | |
| Overline | https://www.overline.com/ | ||
| Overline Network Consultants | Unit 8, The Quoin Estate, Marlborough Road, Lancing Business Park, Lancing, West Sussex BN15 8AD | 0870 891 9001 | |
| OVH Ltd | 3 Southwark Street, London SE1 1RQ | 020 7357 6616 | https://www.ovh.co.uk/ |
| OVO (S) Retail Telecoms Ltd | 1 Rivergate, Temple Quay, Bristol BS1 6ED | 0345 026 7045 | https://www.sse.co.uk/ |
| OVO Broadband | https://www.ovoenergy.com/ | ||
| Owl Technical Services Ltd | 22 Gibson Road, Booker, High Wycombe HP12 4QW | 01494 627001 | |
| OX365 Ltd | 1 Oxford Road, Garsington, Oxford OX44 9DA | 03304455365 | |
| Oxagon Ltd | 125 Cherry Orchard Road, Croydon CR0 6BE | 0208 4072 570 | |
| Oxford Macintosh Solutions Ltd | Macintosh House, 50 Acre End Street, Eynsham, Oxfordshire OX29 4PD | 01865 882 504 | |
| Oxygen8 Communications UK Ltd | 12th Floor, Lyndon House, 58-62 Hagley Road, Birmingham B16 8PE | 0121 621 2000 | http://www.oxygen8.com/ |
| Oyatech Ltd | 71-75 Shelton Street, Covent Garden, London WC2H 9JQ | 02071128690 | |
| Oyatelecom Ltd | 71-75, Shelton Street, Covent Garden, London WC2H 9JQ | 02033010201 | |
| OZ Cloud Ltd | 421 High Road, London N12 0AP | 0845 056 3450 | |
| P&C Communications Ltd | 10 Pilkington Road, Southport PR8 6PD | 01704542420 | |
| P2C Communications Ltd | Suite 16, The Granary, 1 Waverley Lane, Farnham GU98BB | 01252823161 | https://www.p2c-communications.com/ |
| P2p IT Ltd | Gemini House, Hargreaves Road, Swindon SN25 5AZ | 01793 680088 | |
| P3 Computer Services Ltd | , 2 HEALEY WOOD ROAD, BURNLEY, LANCASHIRE BB11 2HJ | 01282 424041 | |
| P9T Cloud Ltd | 30 Kirkwood Close, Aspull, Wigan WN2 1DZ | 07751207970 | |
| PABX Solutions Ltd | Holly Grove, Framfield Road, Framfield TN22 5RP | 0845 450 8900 | |
| Pace Telecom Ltd | 33 High Street, Wrexham LL13 8HY | https://www.pacetelecom.co.uk/ | |
| Paceweb | 23A Clifton Road, London SE25 6PX | 03333359371 | |
| Pacit Technical Services Ltd | 57 Dumas Drive, Whiteley, Fareham PO15 7LU | 01489668866 | |
| Packet Bee Ltd | 20-22 Wenlock Road, London N1 7GU | 020 3435 8080 | |
| Packet Media Ltd | Enterprise House, Trentham Business Quarter, Trentham Lakes South, Stoke on Trent ST4 8GB | 01782 463838 | |
| Packnet Ltd | Greenheys Business Centre, Pencroft Way, Manchester M15 6JJ | 0845 004 4994 | https://www.pack-net.co.uk/ |
| Page Computer Company Ltd | 8 Clayford, Dormansland, Lingfield, Surrey RH7 6PR | 01342 835603 | |
| PageOne Communications Ltd | 2th Floor GW1, Great West House, Great West Road Brentford TW8 9DF | 0333 200 5033 | https://www.pageone.co.uk/ |
| Pageworks Ltd | 15 Gosditch Street, Cirencester GL7 2AG | 01902620500 | |
| PALMSECURE | 152 Ladywood Road, Kirk Hallam DE7 4NS | 01158 24 00 11 | |
| Pan Technology Ltd | St Martin?s Cottage, Western Road, Crowborough TN6 3EH | 01892 667 022 | |
| Pan Telecom | Communicate House, Allenby Business Village, Crofton Road, Lincoln LN3 4NL | 0870 757 7001 | |
| Panacea Logic Ltd | Unit 4 Wheelock Heath Business Court, Alsager Road, Winterley, Sandbach CW11 4RQ | 01270443222 | |
| Panama Communications Ltd | C/O Neal Frain Accountants, 53 York Street, Heywood OL10 4NR | 0845 504 8854 | |
| Panda Comms Ltd | The Masters House, 92A Arundel Street, Sheffield S1 4RE | 07846061716 | |
| Panda Host Ltd | 14 Field Way, St Leonards On-Sea TN388DS | 03300430147 | |
| Panda IT Solutions Ltd | 29 Mill Hill, Churchill House, Pontefract WF8 4HY | 08450950025 | |
| Pangea Connected Ltd | Unit 12, Claremont Business Centre, 6 Claremont Road, Surbiton KT6 4QU | 0800 470 4070 | |
| Panoptic Technology Ltd | 18 Devonshire Row, 1st Floor, London EC2M 4RH | 02036519270 | |
| Panoptics Global Ltd | 421 New Kings Road, London SW6 4RN | 020 3137 6351 | |
| Panorama Antennas | https://www.panorama-antennas.com/ | ||
| Pantec Solutions LTD | 14 Strawberry Mead, Fair Oak, Eastleigh, Hampshire SO50 8RG | 08446863311 | |
| Panztel (UK) Ltd | Raglan House, Llantarnam Business Park, Cwmbran NP44 3AB | 0845 453 4150 | |
| Paradox IT Ltd | Bluebell Lodge, 6 Millbrook Close, Shaw, Oldham OL2 8QA | 0845 875 0005 | |
| Paralogic Networks Ltd | Unit 1d Haddenham Business Park, Pegasus Way, Haddenham HP17 8LJ | 01844 293333 | |
| PARAMOUNT ENTERPRISES | 38 MANDELA CLOSE, LONDON NW10 8BG | 07851961819 | |
| Pareteum Europe B.V. | 90 Long Acre, Covent Garden, London WC2E 9RZ | +1 646 810 2182 | https://www.pareteum.com/ |
| Park Now Ltd | Intec 2, Wade Road, Basingstoke RG24 8NE | 01256 869600 | https://parknowgroup.com/ |
| Parkeray Ltd | Bridge House, 4 Borough High Street, London SE1 9QQ | 0207 378 4567 | |
| ParkingEye Ltd | 38-40 Eaton Avenue, Chorley PR7 7NA | 01772450970 | |
| Part Two Ltd | M.I.O.C, Styal Road, Manchester M22 5WB | 0845 673 0025 | |
| Partner To Success Ltd | 44, Kingswood Road, Kent, Gillingham ME7 1DZ | 03330502245 | |
| P-A-S Intertest Ltd | Swan Court Forder Way, Peterborough, PE7 8GX | 01733 302903 | |
| PAS Partnership Ltd | Unit 11 LDTC, Bancroft Rd, Burnley, Lancashire BB10 2TP | 01282 872361 | |
| Pasporte Ltd | 56 London Road, Bagshot, Surrey GU19 5HL | 0800 054 6060 | |
| Passage Telecommunications Ltd | 16 Sewell Close, Chafford Hundred. RM16 6BT, Grays RM16 6BT | 07459195820 | |
| Passport-IT | The Bridge, One Graypen Way, Queens Road, Immingham DN40 1QN | 01469 730730 | |
| Pastel Solutions Ltd | Lymedale Business Centre, Lymedale Business Park, Hooters Hall Road, Newcastle-under-Lyme ST5 9QF | 03300538898 | |
| Paston Chase Ltd | Henderson Business Centre, Ivy Road, Norwich NR5 8BF | 01603 340010 | |
| Patoy Ltd | 96 Vallander Road, London SE6 2QE | 020 7173 1700 | |
| Patrick Seyler | No 2 Apple Tree Lane, Carlyon Bay PL25 3QB | 07775697241 | |
| Paul Brown Services Ltd | (Brown) Midtown Farm, Carlisle CA5 6JB | 01228576090 | |
| Paul Finney | 11 Cowdray Close, Southampton SO16 8EB | 08009101555 | |
| Paul Gratton | Red Hill House, Hope Street, Chester CH4 9BU | 01244 457870 | |
| Paul Hooker | 24 Cherry Orchard, Holt Heath, Worcester WR6 6ND | 01905 621388 | |
| Paul OBrien Ltd | 78 Hospital Street, Hantwich, Cheshire CW5 5RP | 03333 444243 | |
| Pav I.T. Services Ltd | Reeds Lane, Sayers Common BN6 9LS | 01273834000 | |
| Payment World Ltd | 342 Great Cheetham Street East,Salford, Manchester M7 4UJ | 033 0088 3070 | https://www.mypaymentworld.com/ |
| Paytia Ltd | 89 Leigh Road, Eastleigh SO50 9DQ | 01803224729 | |
| Pb Electrical Contractors Ltd | Riccarton, Windmill Lane, East Grinstead, West Sussex RH19 2DY | 01342634877 | |
| pbuk consultants Ltd | 37 regina road, southall UB25PL | 07956189891 | |
| PBX Hosting | 5 The Cobalt Centre, Siskin Parkway East, Coventry CV3 4PE | 02070999930 | |
| PC Call LTD | 147 Milton Road, Cambridge CB4 1XE | 01223 755 666 | |
| PC Comms Ltd | Unit 6 Wills Business Park, Salmon Parade, Bridgwater TA6 5JT | 01278 458558 | |
| PC Docs Tel Ltd | Solar House, 282 Chase Road, London N14 6HA | 0333 430 0405 | |
| PC Doctors Ltd | Watling Office Grange, Watling Street, Hinckley, Burbage LE10 3AR | 0844 3320350 | |
| PC Excelled Ltd | 58 Bellman Avenue,, Gravesend DA12 1RE | 07710181171 | |
| PC Flying Doctors Ltd | Lewis House, Chesterford Court, Great Chesterford, Saffron Walden, Essex CB10 1PF | 01799 531000 | |
| PC Jen | The Fleece, 24 Keighley Rd, Skipton BD23 2NS | 01756668213 | |
| PC Paramedic Solutions | Unit 10 Norton Canes Business Park, Norton Canes WS11 9SS | 08000199934 | |
| PC Power | 3 Artillery Row, Boston PE21 6TY | 01205368888 | |
| PC Southwest Ltd | Queensgate House, 38 Queen Street, Exeter, Devon EX4 3SR | 01392 361 999 | |
| PC Stop | 7 Kingsland, Arleston, telford TF1 2LB | 01952 246446 | |
| PC Supplies Ltd | Unit 54 Trinity Enterprise Centre, Ironworks Rooad, Barrow in Furness LA14 2PN | 01229877577 | |
| PC Support Company | Kingsferry House, Burton Stather, North Lincolnshire DN15 9DJ | 01724 701 621 | |
| PC Tech Hub | 39 Second Avenue,, Farlington, Portsmouth PO6 1JR | 03301221870 | |
| Pc1 Ltd | Castle House, Kingsway, Swansea West Business Park, Swansea SA5 4DL | 01792 580540 | |
| PCB Group Ltd | Ryburn Villas, 2 Jerry Lane, Sowerby Bridge, West Yorks HX6 3BH | 01422 833 999 | |
| Pccure Services | 762 R Kemp House, 152 City Road, London EC1V 2NX | 0161 872 5297 | |
| PCCW Global | 6/F Exchequer Court, 33 St. Mary Axe, London EC3A 8AA | 020 7173 1700 | https://www.pccwglobal.com/ |
| PCCW Global Networks (UK) | 6/F Exchequer Court, 33 St. Mary Axe, London EC3A 8AA | 020 7173 1700 | https://www.pccwglobal.com/ |
| PCGuys | 1 Haggerston Road, Borehamwood WD6 4BU | 07572013942 | |
| PCI Services Ltd | Evolve Business Centre, Rainton Bridge Business Park, Sunderland DH4 5QY | 08451433000 | |
| PCI Xpress Ltd | 124 Market St., Hoylake, wirral, Merseyside CH47 3BH | 0151 632 5970 | |
| PCI-PAL (U.K.) Ltd | 1 Cornhill, London EC3V 3ND | https://www.pcipal.com/ | |
| PC-IT Support | PC-IT Support, North Colchester Business Park, 340 The Cresent, Colchester CO4 9QB | 02034439550 | |
| pckwikfix Ltd | 8-10 Glasgow Road, Kirkintilloch, Glasgow G66 1SH | 01412800494 | |
| PCL Technology Ltd | 3 Hambro Parade, Rayleigh, Essex SS6 9PU | 0844 251 0802 | |
| PCN Computer Services | 29a Kingston Road, Taunton TA2 7SA | 01823 271342 | |
| PC-Q | https://www.pc-q.co.uk/ | ||
| PCQ Solutions Ltd | Cambrian House, Cambrian Place, Llanidloes SY18 6BX | 01686 411000 | |
| PCR Computers Ltd | 4, The Pavilions, 31 Brighton Road, Croydon CR2 6EB | 0208 681 0000 | |
| PCS Business Systems ltd | 2 Northfield Point, Cunliffe Drive, Kettering NN16 9QJ | 08453 735010 | |
| Pcs Mobile Solutions Ltd | 6 The Pavillions, Tamworth B77 4RP | 03331506780 | |
| PCSG (Merseyside) Ltd | Liverpool Business Centre, 23 Goodlass Road, Liverpool L24 9HJ | 0330 088 6116 | |
| PDR Communications Ltd | 104 London Rd, Newcaste under Lyme, Staffordshire ST5 1LZ | 01782 711141 | |
| Pdx Technology Ltd | 2a station approach, eltham, london, london SE9 6SL | 07795281122 | |
| Peace Telecom | Suite 2 1st Floor, Oak Court, Wynne Avenue, Clifton Swinton, Manchester M27 8FF | ||
| Peach Technologies Ltd | St Andrews House, 4400 Parkway, Whiteley, Hants PO15 7FJ | 0800 998 2002 | https://www.peachtechnologies.co.uk |
| Peak Support Services Ltd | Sams Place, 53 Dimple Road, Matlock DE4 3JX | 01629 582128 | |
| Peak Telecom UK Ltd | 57 Liddon Road, Stamford House, Bromley BR1 2SR | 02082907230 | |
| Pearce IT Ltd | Jigsaw House, 3 Shepherd Road, Gloucester GL2 5EL | 01452929240 | |
| Pearl Communications Ltd | 36-38 Berry Street, Wolverhampton WV1 1HA | 01902 426291 | |
| Pearl Telecom Ltd | Barnett House, 53 Fountain Street, Manchester M2 2AN | 0845 456 6543 | |
| PECC Consultants Ltd | Unit 102 Batley Enterprise Centre, 513 Bradford Road, Batley, West Yorkshire WF17 8LL | 01924 427 700 | |
| Pedigree Computer Services Ltd | 2 Axon, Commerce Road, Lynch Wood, Peterborough PE2 6LR | 01733511141 | |
| Peerless Network UK Ltd | Citadel House, 58 High Street, Hull HU1 1QE | ||
| Pegasus Communications (uk) Ltd | 206 White Lane, Sheffield S12 3GL | 0870 4441408 | |
| Pembs Media IT Services & Broadband | 27 St Lawrence Avenue, Hakin, Milford Haven SA73 3NB | 01646 400510 | |
| Pembs Wifi Ltd | 45 High Street, Haverfordwest SA61 2BP | 01348 808080 | |
| Pen Telecom Ltd | 404 Northpoint, Centennial Way, Elstree, Herts WD6 3TN | 020 8827 0723 | |
| Penetration Testing Services | 1 The Close, Kippax, Leeds LS25 7NB | 03330506689 | |
| Peninsula Evolvit Ltd | Castlemead, Bristol BS1 3AG | 08458804554 | |
| Pennine Telecom Ltd | Pennine House, Salford Street, Bury, Lancashire BL9 6YA | 0161 763 3333 | |
| Penntech IT Solutions Ltd | 60 Grays Inn Road, London WC1X 8AQ | 02033711810 | |
| Pennycom Ltd | 253 Alcester Rd, Birmingham B14 6DT | 01217187000 | |
| Pensar Systems Ltd | 71 Gloucester Place, London W1U 8JW | 0845 402 6797 | |
| Penstone Communications Ltd | Suite 116, Trident Court, Chessington KT9 1BD | 0800 074 4414 | |
| Pentagon Systems | Darley Court, 1 Alfreton Road, Derby DE21 4AA | 08451 662358 | |
| Pentangle Internet Ltd | 1 Lauras Close, Great Staughton, Cambridgeshire PE19 5DP | 08700 339905 | |
| Perdial Ltd | Perdial Limited, Mint House, 6 Stanley Park Road, Wallington, Surrey SM6 0HA | 0845 3703 111 | |
| Perfect Image Ltd | Equinox House, 3.2 Silver Fox Way, Cobalt Business Park, North Tyneside NE27 0QJ | 0191 238 0111 | |
| Performance Networks Ltd | The Old Rectory, Main Street, Glenfield LE3 8DG | 0845 094 4432 | |
| Performance Telecom Ltd | Unit 63, 17 Holywell Hill, St. Albans AL1 1DT | 0845 456 1500 | https://www.performancetelecom.co.uk/ |
| Pericom PLC | 16 Alston Drive, Bradwell Abeey, Milton Keynes MK13 9HA | 01908 224680 | |
| Persimmon Homes Ltd | Persimmon House, Fulford, York YO19 4F | 01904 642199 | https://www.persimmonhomes.com/ |
| Personal Computer Clinic Ltd | Grove Farmhouse, Dorrington, Shrewsbury SY5 7JD | 01743718388 | |
| Personal Group Mobile Ltd | 3b Brunel Close, Drayton Fields Industrial Estate, Daventry, Northants NN11 8RB | 01327872300 | |
| TRU Communications Ltd | Sentinel House Albert Street, Eccles M30 0NJ | 0844 241 2595 | |
| Personic Computers Ltd | 22-24 Winsterstoke Road, Ashton, Bristol BS3 2NQ | 0117 966 6341 | |
| Perspective Communications Ltd | 218 Leigh Road, Eastleigh SO53 3AY | 02380 170270 | |
| Pescado Hosted Ltd | Poplar House, Park West, Chester CH1 4RN | 033 000 22 000 | |
| Peter King | Woodford Old Stafford Road, Wolverhampton WV10 7PL | 07595904866 | |
| Petrol Communications Ltd | 18 Haythrop Close, Downhead Park, Milton Keynes MK11 9DD | 020 3130 1790 | |
| PGL IT Ltd | Unit A, ARC Progress, Beckerings Park, Lidlington, Beds MK43 0RD | 08445 449330 | |
| Phase 5 Communications Ltd | BBIC, Innovation Way, Barnsley S75 1JL | 01226285600 | |
| PHD in Communications Ltd | Venture West, Greenham Business Park, Thatcham RG19 6HN | 01635 573208 | |
| PHE Solutions Ltd | One Way House, Station Road, Lenwade, Norwich NR9 5LY | 01603 555100 | |
| Pheonix Corporate Communications Ltd | |||
| Phi Network Systems | 55 Bally Martin Road, Ballyclare, Co Antrim BT39 0BS | 028 93 155 600 | |
| Phillips IT Ltd | 194 South Street North, New Whittington, Chesterfield S43 2BN | 01246696222 | |
| Yardi Systems Ltd | Suite 2b 1 Pitt Terrace, Stirling, FK8 2EZ | 01786 230 830 | |
| Phoenix Communication Services Ltd | The Offices, Carillon, Longdon Road, Upton upon Severn, Worcs WR8 0QL | 01684 892 911 | |
| Phoenix IT Services Ltd | Technology House, Hunsbury Hill Avenue, Northampton NN4 8QS | 0844 863 1632 | |
| Phoenix Link | Albion Chambers, 1 Albion Road, Birchington, Kent CT7 9DN | 01843 844 180 | |
| Phoenix Link UK Ltd | B4 Hillborough Business Park, Sweechbridge Road, Herne Bay CT6 6TE | 0844 257 1710 | https://www.telephoneskent.com/ |
| Phoenix Managed Networks Ltd | Phoenix House, Maple Road, Tankersley S75 3DL | 0845 006 0066 | |
| Phoenix Solution Technologies Ltd | 25, St Andrews Street, Hertford, Herts SG14 1HZ | 07527366233 | |
| Phoenix Solutions SL | 70-72 The Havens, Ipswich IP3 8BF | 01473858950 | |
| Phoenix SSI Ltd | Dawson House, 128-130 Carshalton Road, Sutton, Surrey SM1 4TW | 08447799776 | |
| Phonate Telecom | Olympic House, 28-42 Clements Road, Ilford IG1 1BA | 020 3153 0000 | https://www.phonate.co.uk/ |
| Phone Buddy Ltd | 2nd Floor Saxon House, Heritage Gate, Derby DE1 1NL | 0870 787 5678 | |
| Phone Cheap | https://www.phonecheap.co.uk/ | ||
| The Phone Co-Op Ltd | 5 The Millhouse, Elmsfield Business Centre, Worcester Road, Chipping Norton, Oxon OX7 5XL | 0845 458 9000 | https://www.thephone.coop/ |
| Phone Co-Op Caller Plus | https://www.thephone.coop/ | ||
| Phone Co-Op Caller Plus and Home user | https://www.thephone.coop/ | ||
| Phone Co-Op Numbering Ltd | 5 The Millhouse, Elmsfield Business Centre, Worcester Road, Chipping Norton, Oxon OX7 5XL | 0845 458 9000 | https://www.thephone.coop/ |
| Phone Co-Op Package | https://www.thephone.coop/ | ||
| Phone Direct | |||
| Phonecom Ltd | 1st Floor, 54a, Portswood Road, Southampton SO17 2FW | 03300577199 | |
| Phonelink Installations Ltd | 94 Sterry Road, Gowerton, Swansea SA43BW | 01792 875999 | |
| phoneplus network ltd | 170 PLASHET GROVE, LONDON E6 1AB | 02039071700 | |
| Phones 4 Business Ltd | Suite 5, Cleveland Court, 3-5 Cleveland Road, Bournemounth, Dorset BH1 4QB | 01202 705 030 | |
| Phones For Business Ltd | Mill Court, Mill Hill, Edenbridge TN8 5DB | 01732866699 | |
| Phonestar Ltd | 10 Bridge Road, Christchurch, Dorset BH23 1EF | 0845 366 6444 | https://www.phonestar.co.uk/ |
| Phoneworcs Ltd | 68 The Holloway, Droitwich Spa WR9 7AX | 01905885335 | |
| Phonexa LTD | 23 Hinton Rd, Bournemouth BH1 2EF | 0-808-189-3371 | |
| Phonio UK Ltd | 170 Edmund Street,, Birmingham B3 2HB | +49 40 2288 2222 | |
| PiaTel Communications Ltd | 302 Regent Street, London W1B 3HH | 020 7979 1700 | |
| Pier IT Ltd | 6 Grange Paddock, Mark, Highbridge, Somerset TA9 4RW | 01278 641 497 | |
| Piksel Ltd | York Science Park, 1 Innovation Close, York YO10 5ZD | 01904 271 000 | |
| Pinacl Solutions Ltd | Pinacl House, Carlton Court, St Asaph Business Park, ST Asaph LL17 0JG | 01745 535300 | |
| Pine Media Business Ltd | Belgravia House, 115 Rockingham Street, Sheffield S14EB | 01142991699 | http://www.pinemedia.net/ |
| Pine Media Business Ltd | 19 Woodhouse Gardens, Ruddington, Nottingham NG11 6BF | 01133031031 | |
| Pineapple Communications Ltd | (dissolved May 2013) | ||
| Pineapple Telecoms Ltd | SUITE 2 CHANCERY COURT, 34 WEST STREET, RETFORD DN22 6ES | 01522560122 | |
| Pinehill Associates Ltd | Minshull House, 67 Wellington Road North, Stockport SK4 2LP | 01612992411 | |
| Ping IT Services Ltd | 11 Andrew Terrace, Llanhilleth, Abertillery NP13 2JL | 07966555698 | |
| Ping Network Solutions | New Alderston House, 3 Dove Wynd, Strathclyde Business Park, Bellshill ML4 3FB | 0141 354 1575 | |
| Pink Connect Ltd | Connect House, Mill Street, Shipston on Stour, Warwickshire CV36 4AW | 0345 450 9393 | https://www.pinkconnect.com/ |
| Pink Connect Ltd | Connect House, Mill St, Shipston on Stour, Warcs CV36 4AW | 0345 450 9393 | https://www.pinkconnect.com/ |
| Pinnaca Retail Solutions Ltd | Sterling House, 2nd Floor, S4 Langstone Road, Essex IG10 3TS | 02037474366 | |
| Pinnacle Computing Support Ltd | 153 Upper Newtownards Road, Belfast BT4 3HX | 02890674970 | |
| Pinnacle Technologies Ltd | First Floor Suite 2D, Blue Pit Mill, Queensway, Rochdale OL11 2YW | 01706 350 370 | |
| Pinnacle Telecoms Wales | |||
| Pinnacom Ltd | The Coach House, Mallory Race Circuit, Kirkby Mallory, Leicester LE9 7QE | 02071155555 | |
| Pinner Construction Ltd | 145-157 St John Street, London EC1V 4PY | 020 8906 8169 | |
| Pioneer Business Systems | https://www.pioneercomms.co.uk/ | ||
| Pioneer Global Services Ltd | 2 Gayton Road, Harrow, Middlesex HA1 2XU | 020 8819 1946 | |
| Pioneer Information Solutions Ltd | 194 Honeypot Lane, Stanmore HA7 1EE | 02082049628 | |
| Pioneer IT Support Ltd | 3-5 Balfour Road, Ilford IG1 4HP | 02033849347 | |
| Pioneer Solutions (UK) Ltd | Roding Lane South, Ilford IG8 8EY | 02033849347 | |
| Piran Technologies ltd | Unit 1, Jon Davey Drive, Treleigh industrial Estate, Redruth, Cornwall TR16 4AX | 01209 708 608 | |
| Piron Networks Ltd | 30 New Road, Brighton BN1 1BN | 03300021200 | |
| Piron Telecom Ltd | 9 Burns Way, Holmbush Potteries, Faygate RH12 4ST | 02070812556 | |
| Pisys.Net Ltd | 2 Princess Way, Swansea SA1 3LW | 01792464748 | |
| Pitch Partners Solutions LTD | 30A Swanley Centre, London Road, Swanley BR8 7TL | 02033971515 | |
| Pivotal Networks Ltd | 1 Berrymoor Court, Northumberland Business Park, Cramlington NE23 7RZ | 01912503120 | |
| Pixel Hosts Ltd | 1 Manthorpe Way, Newark NG24 3PP | 0844 884 2698 | |
| PJ Communications Ltd | 259 Virgo Road, Andover SP10 1JX | 01483 361 122 | |
| Pkf Cooper Parry Group Ltd | Sky View, Argosy Road, Derby DE74 2SA | 01332 411163 | |
| Plain Sailing Communications Ltd | PO Box 335, Sevenoaks, KENT TN13 3ZX | 01732 743 746 | |
| Plan Communications Ltd | Capital House, Circular Road, Douglas, Isle of Man IM1 1AG | 01624 654 067 | |
| plan.com | https://www.plan.com/ | ||
| PLAN:IT Business Systems | The Radcliffe Centre, 41a Blackburn Street, Radcliffe, Manchester M26 1NR | 0161 723 0999 | |
| Planet Convergence Ltd | 500 Chiswick High Road, London W4 5RG | 020 8994 4454 | |
| Planet IT Ltd | 80 F Park Drive, Milton Park, Abingdon, Oxford OX14 4RY | 01235433900 | |
| Planet Numbers Ltd | Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ | 0345 077 7777 | https://planet-numbers.co.uk/ |
| Planet Products Ltd | Unit 13 Warsop Enterprise Centre, Nottinghamshire NG20 0AF | 01623844086 | |
| Planet Talk | PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY | 020 7195 2875 | https://www.planet-talk.co.uk/ |
| Planet Talk Account | PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY | 020 7195 2875 | https://www.planet-talk.co.uk/ |
| Planet Telecom | https://www.1call.co.uk/ | ||
| Planet Telecommunications Solutions Ltd | |||
| Platinum Computer Solutions Ltd | 10 Abbey Court, Fraser Road, Priory Business Park, Bedford MK44 3WH | 01234 832 520 | |
| Platinum Telecom | 145-157 St John Street, LONDON EC1V 4PY | 0870 167 2114 | |
| Plaza Telecom | |||
| Plexio UK Ltd | Suite 2 Resource Centre, Bridge Street, Garstang, Preston PR3 1YB | 01995 912 020 | |
| Plexmoss Ltd | 24 Queen Avenue, Dale Street, Liverpool L2 4TZ | 07736509618 | |
| PLH Consultants Ltd | Suite 4 Crown Business Centre, Old Ipswich Road, Ardleigh, Colchester CO7 7QR | 01206233465 | |
| Plugd Ltd | 3 Gedney Close, Shirley, Solihull B90 1LJ | 07968 726 379 | |
| Plugged In Comms Ltd | 562 Rayleigh Road, Hutton, Brentwood CM13 1SG | 01277 287077 | |
| Plugin.Co.Uk. Ltd | PO Box 1557, Woking GU22 2TY | 01483363073 | |
| Plum Communications Ltd | Bright Street, Oldham OL8 4AB | 0870 750 4730 | https://www.plumcom.co.uk/ |
| Plus Networks Ltd | 11 Heath Croft Road, Sutton Coldfield B75 6RA | 01212710755 | |
| Plus Technologies Ltd | 1st Floor Helen and Douglas House, Broadfields Court, Broadfields Retail Park, AYLESBURY HP19 8BU | 01296 658947 | |
| Plus Telecom Ltd | 17-18 Margaret Street, London W1W 8RP | 0808 148 4848 | http://www.plustelecom.com/ |
| PlusNet Plc | The Balance, 2 Pinfold Street, Sheffield S1 2GU | 0345 140 0200 | https://www.plus.net/ |
| PlusNet Broadband Phone | https://www.plus.net/ | ||
| PlusNet Home Phone | https://www.plus.net/ | ||
| Plustel Ltd | Innovation House, Innovation Way, Sandwich CT13 9FF | 08008495496 | |
| PMC Electrics Ltd | 8th Floor, St James House, Salford M6 5FW | 0161 737 9898 | |
| PMGC Technology Group Ltd | Sutherland House, 5-6 Argyll Street, London W1F 7TE | 0207 2879928 | |
| PMS Networks Ltd | 41 Vittoria Street, Birmingham B1 3ND | 08445732611 | |
| Pneuma Global Networks | Brookmans Park Teleport, Gt North Road, Brookmans Park, Herts AL9 6NE | 01707 648316 | |
| PNP Consultants (UK) Ltd | 210 Warsash Road, Warsash, Southampton SO31 9JF | 01489571238 | |
| PNS Affinity Ltd | Unit 2 Apsley Business Centre,, 233 London Road, Hemel Hempstead HP3 9SE | 08003047065 | |
| PocketDial | Collards, 2 High Street, Kingston upon Thames KT1 1EY | https://www.pocketdial.com/ | |
| POD TELECOMS ltd | Kemp House, London EC1V 2NX | 03334561235 | |
| Podium Infrastructure Design & Consultancy Ltd | 21 Spencer Close, Earls Barton, Northamptonshire NN6 0RD | 07860524908 | |
| Polaris Telecommunications Ltd | St John's Innovation Centre, Cowley Road, Cambridge CB4 0WS | 08707 651654 | |
| PolkaSpots Ltd | 4th Floor, 62 Britton Street, London EC1M 5UY | 020 7183 1471 | |
| Pond Group Ltd | 17 Widmore Road, Bromley BR1 1RL | 020 8466 6043 | |
| PooleIT Ltd | Unit 23, The Glenmore Centre, Fancy Road, Poole BH12 4FB | 01202232117 | |
| Poplar Ltd | |||
| Poplar Aegis Ltd | Suite 4, Gymphlex Offices, Boston Road, Horncastle LN9 6HU | 0333 011 0512 | |
| Poppy's Communications Ltd | The Old Parlour, Purn House Farm, Bleadon, Weston Super Mare BS24 0QE | 01934 814 984 | |
| Port 5060 Ltd | Unit 3 Newton Business Centre, Newton Chambers Road, Sheffield S35 2PH | 0333 773 5060 | https://www.port5060.net/ |
| Portal Voice & Data Ltd | Unit 2a, Saphire Estate, Roundtree Way, Norwich, Norfolk NR7 8SQ | 01603 785300 | |
| Portal Voice and Data | http://www.portal-comms.co.uk/ | ||
| PortelAV Ltd | 23 Shibden Hall Croft, Halifax HX3 9XF | 01422 893888 | https://www.portelav.co.uk/ |
| Porthlas Ltd | 2 Alexandra Gate, Ffordd Pengam, Cardiff CF24 2SA | 02921111202 | |
| Portsmouth Business System Ltd | 14 The Tanneries, Brockhampton Lane, Havant, Hants PO9 1JB | 02392 454 694 | |
| Pos-Aid Ltd | 4 The Square, Wellow, Bath BA2 8QE | 0330 223 2237 | |
| Posicom Ltd | 15 Peregrine Road, Hucknall, Nottingham NG15 8HF | 07913343103 | |
| Posilan Ltd | Empress Business Centre, 380 Chester Road, Manchester M16 9EA | 0161 660 7471 | |
| Posisoft Ltd | 25 Scarr Lane, Greater Manchester OL2 8HQ | 03333853875 | |
| Positive Computing | Berkshire House, Kings Road, Reading RG1 4HP | 0118 907 4000 | |
| Positive ICT Ltd | Po Box 3866, Wolverhampton, West Midlands WV6 8ZT | 0844 884 1000 | |
| Positive IT Communications | West Wing, Bynea House, Bynea, Llanelli, Carmarthenshire SA14 9SU. | 0871 6440244 | http://www.positiveit.com/ |
| Posix Ltd | 493 Hornsey Road, London N19 3QL | 07974565531 | |
| Post Office Ltd | Providence Row, Durham DH1 1RR | 0845 600 3210 | https://www.postoffice.co.uk/ |
| Post Office Phonecard | https://www.postoffice.co.uk/ | ||
| Poundbury Systems Ltd | Poundbury Systems Ltd, Emeria House, 71-73 Middlemarsh Street, Poundbury, Dorchester DT1 3FD | 0871 208 0034 | https://www.poundbury.com/ |
| Poundhost | http://www.poundhost.co.uk/ | ||
| Power Internet | 249 Midsummer Boulevard, Central Milton Keynes, Buckinghamshire MK9 1EA | 01908 605 188 | |
| Powercit.co.uk Ltd | 82a Singer Way, Woburn Rd Ind Est, Kempston MK42 7PU | 01234 905102 | |
| Powercuts UK Ltd | 181-183 Summer Road, Erdington, Birmingham B23 6DX | 0121 647 6023 | |
| Powerdial Services Ltd | East Batterlaw Farm, Hawthorn, County Durham SR7 8RP | 01915275000 | |
| Powered by Vision Ltd | Spindrift Timberlea Close, Ashington, Pulborough RH20 3LD | 01903868030 | |
| Powernet Management Ltd | First Floor Offices, 3 All Hallows Road, Blackpool FY2 0AS | 0845 643 9013 | |
| Powertel Ltd | Liquidation June 20920 | http://www.powertel.co.uk/ | |
| PPSnet Ltd | Crown House, Home Gardens, Dartford DA1 1DZ | 08445614636 | |
| Praestantia Technology Ltd | The Exchange, Express Park, Bridgwater TA6 4RR | 01823 426063 | |
| Pragma Distribution Ltd | Unit C1, Rock Business Park, The Hollow, Washington RH20 3GR | 01903927100 | |
| Pragma Networks Ltd | Swan Court, Waterhouse Street, Hemal Hempstead, Herts HP1 1DS | 0845 873 7950 | |
| Praten Telecom Ltd | Suite 43, 26 Kings Hill, Kings Hill Avenue, Kings Hill Business Park, West Malling, Kent ME19 4AE | 01732 424156 | |
| PRD Technologies | https://www.p-rd.com/ | ||
| Precedence Technologies Ltd | Technology House, 36a Union Lane, Cambridge CB4 1QB | 01223359900 | |
| PreciousIT Ltd | Ethos House, New Road, Sandy, Beds SG19 1NX | 01767 221100 | |
| Precise IT Solutions | 27 Tile Street, Bradford BD8 8NX | 01274 288072 | |
| Precise Telecom Ltd | 331 St Margaret's Road, Twickenham TW1 1PW | 020 8744 2140 | |
| Precium Ltd | 1 Farnham Road, Guildford, Surrey GU2 4RG | 01483 549 040 | |
| PreeBroadband | 25 Pear Tree Way, Basingstoke RG215QE | 07481028481 | |
| Preiskel & Co LLP | https://www.preiskel.com/services/ | ||
| Premier 1983 Ltd | Premier Business Park, Dencora Way, Luton LU3 3HP | +44 1582 572727 | |
| Premier Business Audio Ltd | Laverstoke Grange, Laverstoke, Whitchurch RG28 7PF | 03450711359 | |
| Premier Choice Telecom Ltd | Premier House, 102a Station Road, Sidcup, Kent DA15 7DE | 020 8300 9495 | https://www.premierchoicetelecom.com/ |
| Premier Computer Support Ltd | 10-16 Tiller Road, London E14 8PX | 020 7345 5139 | |
| Premier Links Ltd | Unit 5D Folgate Road, Lyngate Road Industrial Estate, North Walsham NR28 0AJ | 01692 403036 | |
| Premier Services NE Ltd | 31 Bromarsh Court, St Peters Riverside, Sunderland SR60RN | 01915946999 | |
| Premier System Solutions Ltd | 229 Aylestone Lane, Wigson, Leicester LE18 1BE | 01162 571456 | |
| Premier Talk Ltd | EBC House, Townsend Lane, Kingsbury, London NW9 8LL | 020 7392 8864 | |
| Premier Talk Uk Ltd | 4a Castle View Mews, Castle Hill, Rochester, Kent ME1 1LA | 03300431725 | |
| Onecom Ltd | Gleneagles House 4400 Parkway, Solent Business Park Whiteley Fareham, Hampshire PO15 7FJ | 01489 587200 | |
| Premier Voice Data Ltd | Unit 5 North Lynn Business Village, Bergen Way, North Lynn Industrial Estate, Kings Lynn PE302JG | ||
| Premier Voicemail Ltd | PO Box 3, Borehamwood, Herts WD6 4HD | 020 8236 0236 | https://www.premiervoicemail.co.uk/ |
| Premiercomms Ltd | 20-22, Wenlock Road, LONDON, London N1 7GW | 02392831730 | |
| Premiere Communications Inc | 3399 Peachtree Road NE, The Lenox Building, Suite 400, Atlanta, Georgia 30326, USA | ||
| PremierEdge Solutions Ltd | Unit 4E, Winford Business Park, Winford, Bristol BS40 8HJ | 01275400300 | |
| Premium Routing GmbH | Steinackerstrasse 2, CH-8302 Kloten, Switzerland | https://premium-routing.com/ | |
| Premtext Ltd | Sellack House, Sellack, Roth on Wye, Herefordshire HR9 6QP | 0333 3040800 | |
| Press Start Ltd | Tudor Lodge - Fiveways, Barton Mills, Bury St Edmunds IP28 6AE | 01638 603204 | |
| Press Telecom Ltd | 3-5 Elizabeth Street, Burnley BB11 2BQ | 01282 842163 | |
| Prestige IT Support Ltd | Unit 23 Pitcliffe Way Industrial Estate, Upper Castle Street, Bradford, West Yorkshire BD5 7SG | 01274 955 509 | |
| Prestige Logic Ltd | 1st Floor Franklin House, Maple Road, Bramhall, Stockport SK7 2DJ | 08455828080 | |
| Prestige Telecom Group Ltd | Units 8 & 10, Kiln Acre, Wickham Rd, Fareham PO16 7JS | 01329554375 | |
| Price Engines Ltd | Pioneer House, Derby Road, Stenson, Derby DE73 7HL | 01283707050 | |
| Primary ICT Support Ltd | 4100 Park Approach, Leeds LS15 8GB | 0113 426 4264 | |
| Primary IT Support Ltd | The Hive, Bell Lane, Old Town, Stevenage SG1 3HW | 01992467202 | |
| Primary PC Solutions | Unit 4, Trenethick business Park, Water-Ma-Trout, Helston TR130LW | 01326562310 | |
| Prime & Modern Ltd | Kingsway House, 103 Kingsway, London WC2B 6QX | 020 7443 5618 | |
| Prime Connect | 220 The Vale, Golders Green, London, London NW11 8SR | 02071010990 | |
| Primenet Southwest Ltd | 24 the orchard, Locking, North somerset, Weston super mare BS248DU | 07971530594 | |
| Primotech Solutions Ltd | 32 Kingsmead Drive, Hunts Cross, Liverpool L25 0NQ | 07989141448 | |
| Principal Communications Ltd | 30 Eldon Business Park, Eldon Road, Attenborough, Nottingham NG9 6DZ | 01159 221110 | |
| Principal I Ltd | Principal House, Parsonage Business Park, Horsham RH12 4AL | 0333 240 8130 | |
| Principle Networks Ltd | 10 Mercury Quays, Ashley Lane, Shipley BD17 7DB | 03301240003 | |
| Priority IT Solutions Ltd | 56 Stallard ST, Trowbridge BA148HH | ||
| Priority Managed Services Ltd | 20-22 Wenlock Road, London N1 7GU | 01217965622 | |
| Priority One IT | 58 Southwark Bridge Road, London SE1 0AS | 020 3151 6000 | |
| Prism Business Developments Ltd | 5 John Bradshaw Court, Congleton, Cheshire CW12 1LB | 0845 121 7770 | |
| Prism Voice & Data Ltd | 3 Hambro Parade, Rayleigh SS6 9PU | 01277287400 | |
| Private Mobile Networks | https://www.privatemobilenetworks.com/ | ||
| Private Ward Ltd | 53 Gildredge Road, East Sussex, Eastbourne BN214SF | 07864649531 | |
| Proac Solutions Ltd | 103 Fourelle House Central Crescent, Marchwood Inustrial Park, Marchwood, Southampton SO404BJ | 02380864644 | |
| Proactive Networking Ltd | ProNet House, 36 Mannock Drive, Loughton, Essex IG10 2JB | 0845 612 5785 | |
| Proactive Networks Ltd | Suite 16, Floor 6 St James House, Penedelton Way M6 5FW | 0870 224 2890 | |
| Probado Ltd | The Old Surgery, Manchester Road, Marsden, Huddersfield HD7 6EL | 01484 905 103 | |
| Probrand Ltd | 45-55 Camden Street, Birmingham B1 3BP | 0121 605 1000 | |
| Procom | Stowick, Evesham Road, Broadway WR12 7HU | 01386 830858 | |
| Procom Global Ltd | Maxim 1, 2 parklands Way, Eurocentral ML1 4WR | 07917356092 | |
| Pro-Copy Ltd | Parc-Ty-Glas, Llainshen, Cardiff CF14 5DU | 02920689999 | |
| Prodec Networks Ltd | Chancery Gate Business Centre, Ruscombe Park, Twyford RG10 9LT | 0118 960 2500 | |
| Prodera Group Ltd | Eco Innovation Centre, Peterscourt, City Road, Peterborough PE1 1SA | 0845 154 3560 | |
| Prodigy Internet Ltd | PO Box 1636, Sheffield S10 5XG | ||
| Prodigy PC | https://www.prodigyitsolutions.com/ | ||
| Prodigy PC | Everley Farm, Iwerne Minster, Blandford DT11 8PT | 01258442888 | |
| ProExe Ltd | 37 Rolle Street, Exmouth EX8 2SN | 01395224141 | |
| Professional IT Systems Ltd | Dunn and Mills Business Park, Red Doles Lane, Huddersfield HD2 1YE | 01132385525 | |
| Professional Link Ltd | 8 Calthorpe Road, Edgbaston, Birmingham B15 1QT | 0121 456 5115 | |
| Professional Network Technology Solutions Ltd | Bailey Suite, Palatine House, Belmont, Durham DH1 1TW | 01914324134 | |
| Professional Software Design Ltd | 2-3 Fairmile Parade, Fairmile Road, Christchurch, Dorset BH23 2LP | 0845 8621061 | |
| Professional Technical Consulting Ltd | Unit 3F Bolingbroke Road, Fairfield Industrial Estate, Louth LN11 0WA | 01507 609643 | |
| Proficient Systems Ltd | Unit k5 South Point, Clos Marion, Cardiff CF10 4LQ | 02921 111246 | |
| Profile Technology Services Ltd | Unit 9 Progression Centre, 42 Mark Road, Hemel Hempstead, Herts HP2 7DW | 01442 236311 | |
| Prognosys Ltd | Clyde Farm, Silver Street, Godmanchester PE29 2LF | 02087070560 | |
| Progress Communications Ltd | North London Business Park, Building 3, London N11 1GN | 020 3358 0070 | |
| Progressive Communications Ltd | Unit 23 Salisbury Road Business Park, Pewsey, Wiltshire SN9 5PZ | 01993 831 222 | |
| Progressive Consulting Ltd (PCL) | 46 Hyde Road, South Croydon, Surrey CR2 9NP | 020 8657 4666 | |
| Project Business Solutions Ltd | Office 2, Imex Business Centre, Durham DH3 1QT | 01915111153 | |
| Project Five Ltd | Projectfive, St George's House, Knoll Road, Camberley GU153SY | 01276455466 | |
| Prologue Computers Ltd | Orchard Rise, Bristol BS35 4DY | 01454 626 416 | |
| Promec Services | 7 Ferndale Gardens, Hook, Hants RG27 9DR | 01256 762 244 | |
| Promentum Ltd | 3 The Mews, 16 Holly Bush Lane, Sevonoaks, Kent TN13 3TH | 01732 456 500 | |
| Promotions4All Ltd | 19 Kenyon Street, Birmingham B18 6AR | ||
| ProNet Computers | Unit B1B - Mill One, Pleasley Vale Business Park, Mansfield, Nottinghamshire NG19 8RL | 01623 811920 | |
| Pro-Net Internet Services Ltd | PO Box 5763, London NW7 0EQ | 0870 835 6911 | http://www.pro-net.co.uk/ |
| ProNetwork Solutions Ltd | Midtown Business Centre, 25 Talbot Street, BELFAST BT1 2LD | 02890823672 | |
| Pro-Networks Ltd | Network House, St Ives Way, Sandycroft, Flintshire CH5 2QS | 08444 141 940 | |
| Propercomms Ltd | Charles House, 148 Great Charles Street, Birmingham B3 3HT | 0121 309 0105 | |
| Property Hunt Ltd | 6 Ellsmere Court, Manners Industrial Estate, Ilkeston, Derbyshire DE7 8EF | 0845 223 2200 | |
| Prosper IT Solutions Ltd | Unit B, Woodland Court, Truro Business Park, Threemilestone, Truro TR4 9NH | 01872266679 | |
| Rainbow Networks Ltd | Raleigh House, 9A Wellsway, Keynsham, Bristol BS31 1HS | 0117 9864777 | |
| Protel Networks PLC | 4-6 Arden Grove, Harpenden, Herts AL5 2SJ | 07050 102030 | |
| Proteus Business Solutions Ltd | Unit 9, Oakhanger Farm Business Park, Oakhanger, Bordon GU35 9JA | 0345 557 8491 | |
| Provider Support Services Ltd | The Great Barn, Blackwell Hall Lane, Latimer HP5 1TN | 01494300026 | |
| Provision IT Ltd | Aspect Business Centre, Ground Floor Aspect House, Bennerley Road, Nottingham NG68WR | 0115 7841659 | |
| Pro-Voice Network Ltd | Unit 8, Solent Industrial Estate, Hedge End, Southampton, Hampshire SO30 2FX | 0870 8030836 | |
| Proweb (UK) Ltd | 18 Mansfield Road, Daybrook, Nottingham NG5 6AA | 0115 920 2010 | |
| Proximity Communications Plc | Thatcham Business Village, Colthrop Way, Thatcham, Berkshire RG19 4LW | 0845 371 9010 | |
| Prs Telecom Ltd | 2nd & 3rd Floor, PRS Telecom House, 82-84 High Street, Mold, Flintshire CH7 1BH | 0161 653 4141 | https://www.prstelecom.co.uk/ |
| PS Technology Consultants Ltd | 1 The Square, Church Street, Edenbridge TN8 5BD | 01732 243100 | |
| PSA Professional Solutions | 67 Park Street, Thame OX9 3HT | 01844 261750 | |
| PSIFX Networks Ltd | 3 Somerset Mews, Loch Street, Runcorn, Cheshire WA7 1LP | 01928 574026 | |
| PST Business Solutions Ltd | The Courtyard, James Lane, Grazeley Green, Reading, Berkshire RG7 1NB | 0118 959 0800 | |
| PSTG Ltd | 1 Cresswell Park, Blackheath, London SE3 9RD | 02083037622 | |
| PSU Talk Ltd | 3 Manchester Park, Tewkesbury Road, Cheltenham, Gloucester GL51 9EJ | 0870 112 1128 | |
| PSU Technology | https://www.psu.co.uk/ | ||
| PSX Digital Ltd | Wood House, Stoke-on-Trent ST1 5NQ | 08435040218 | |
| Psychic Friends Ltd | 32 The Square, Gillingham, Dorset SP8 4AR | 020 3397 2852 | |
| psz direct Ltd | 17 METRO CENTRE, DWIGHT ROAD WATFORD, HERTFORDSHIRE WD189SB | 07464747605 | |
| PT Network Solutions Ltd | The Lansdowne Building, 2 Lansdowne Road, Croydon CR9 2ER | 020 3002 4890 | |
| Public Internet Ltd | Unit B, Oakfield Industrial Estate, Witney OX29 4TH | 01865 570570 | https://www.public-internet.co.uk/ |
| Pulsant (Scotland) Ltd | 12 Dock Place, Edinburgh EH6 6LU | 0845 119 9900 | https://www.pulsant.com/ |
| Pulse Communications (UK) Ltd | Unit 1 Grove House, Booth Street, Haslingden, Rossendale, Lancs BB4 5JA | 08448 221229 | |
| Pulse Integra Ltd | 71-75 Shelton Street, Greater London WC2H 9JQ | 03306060660 | |
| Pulse Media (UK) Ltd | Media House, The Lansbury Estate, Knaphill, Woking, Surrey GU21 2EP | 0870 750 4002 | |
| Puma Unified Communications | Dissolved on 13 December 2016 | ||
| PUMPKIN COMMUNICATIONS Ltd | 3 Princes Street, Bath, Bath & North East Somerset, Bath BA1 1HL | 01225632323 | |
| Pure Broadband Ltd | 59 Wassand Street, Kingston on Hull HU3 4AL | 01482 778838 | https://www.purebroadband.net/ |
| Pure Cloud 365 Ltd | Trilogy Suite, 9 Church Street, Wednesfield, Wolverhampton WV11 1SR | 03301245800 | |
| Pure Cloud Solutions Ltd | Unit 3 Blake Court, Zone 1 Burntwood Business Park, Burntwood, Staffordshire WS7 3GR | 08456 771 000 | |
| Pure Comms Bristol Ltd | 41 Southfield Road, Nailsea, North Somerset BS48 1JB | 0800 6344733 | |
| Pure Comms Bristol t/s Pure comms | https://www.purecomms.co.uk/ | ||
| Pure Communications Group Ltd | Titanic Suites, 55 -59, Adelaide Street, Belfast BT2 8FE | 07710841660 | |
| Pure Communications UK Ltd | Morgan Place, Anchorage Avenue, Shrewsbury Business Park, Shrewsbury SY2 6FG | 01743 244933 | https://www.pure-telecom.co.uk/ |
| Pure IT 365 Ltd | Hamilton House, 3 Norwich Road, North Walsham NR28 9JP | 01692 403060 | |
| Pure IT Support Ltd | 3 Upper Northam Road, Hedge End, Southampton SO30 4DY | 01489 797237 | |
| Pure IT Systems Ltd | Viscount House, River Lane, Saltney, Chester CH4 8RH | 01244 960 230 | |
| IGC Fixed Line Ltd | Pure Mobile T/a Pure Connected Solutions House Blisworth Hill Farm Blisworth, Northampton NN7 3DB | 0870 240 3471 | |
| PureBlue Global Networks Ltd | 86-90 Paul Street, London EC2A 4NE | 02070788500 | |
| Purebroadband | https://www.purebroadband.net/ | ||
| Purefibre Internet | https://www.purefibre.london/ | ||
| Pureglow Ltd | |||
| Pure-IP Ltd | The Granary, 113 Lavender Walk, London SW11 1JS | 020 7801 3280 | https://www.pure-ip.com/ |
| Purely Computing Ltd | New Cambridge House, Bassingbourn Road, Litlington, Royston SG8 0SS | 01763 252411 | |
| purple comms ltd | Communication House, 200 William Hunter Way, Brentwood, Essex CM14 4WQ | 01277 280 666 | |
| Purple Communications UK Ltd | Communications House, 200 William Hunter Way, Brentwood, Essex CM14 4WQ | 01277280666 | |
| Purple ICT Ltd | Irongray House, Irongray Road, Dumfries DG2 0HS | 01387 269 888 | |
| Purple Jelly Ltd | Unit 18, The Enterprise Centre, Coxbridge Business Park, Alton Road, Farnham GU10 5EH | 01252856230 | |
| Purple Tree LTD | The Studios, Telford TF11QQ | 07922292649 | |
| Purple Tree Solutions Ltd | 78 St Catherine Street, Kingsholm, Gloucester GL1 2BX | 01452550714 | |
| Purple Triangle Ltd | 3 Hawk Close, Nuneaton CV11 6TG | 02476320788 | |
| Purple Unified Communications Ltd | Wenlock Waterside, 50-52 Wharf Road, London N1 7EU | 020 3031 2780 | |
| Push Solutions Ltd | Leigh Court Business Centre, Pill Rd, Abbots Leigh, Bristol BS8 3RA | 01172445550 | |
| Puzzle Digest Ltd | The Quadrus Centre, Woodstock Way, Boldon Business Park, Boldon Colliery NE35 9PF | 03332020651 | |
| Pyranet UK Ltd | Unit7, Vision Business Centre, Nottingham NG6 8GF | 01158 242526 | |
| Python IT Ltd | 77a high street, newport NP4 7AG | 01495 616181 | |
| Q Communications | 109 Park Avenue, Mitcham, Surrey CR4 2ES | 0800 090 1212 | |
| Q Tech Communications | Regent House, Bath Avenue, Wolverhampton WV14EG | 01902219797 | |
| Q Tekteam Ltd | 6 Taplins Court, Church Lane, Hartley Wintney RG27 8XU | 08450 740 530 | |
| Q\DOS Networks Ltd | Manor Farm Business Centre, Manor Lane, Stutton, Ipswich IP9 2TB | ||
| Q6 Group Ltd | 21 Comberton Av, Kidderminster DY103EG | 01562312600 | |
| QAIST ltd | e Innovation Centre, Telford TF2 9FT | 03300245976 | |
| QDial | http://www.qdial.co.uk/ | ||
| QDOS Communications Ltd | 2 Mere Gardens, Rushmere St Andrew, Ipswich IP4 5HU | 0843 208 3001 | |
| Qdos Computer Consultants Ltd | Syner-Med House, 120 High Street, Puley CR8 2AD | 02087638732 | |
| Qdos Sbl Group Ltd | 1 Beta Terrace, Ipswich IP3 9FE | 0203 3010007 | |
| qdsace2015 | 3-5 Marischal Street, Peterhead AB42 1BS | 01779 490426 | |
| QiComm | |||
| Qontix Ltd | 9, 97 Rickman Drive, Birmingham B15 2AL | 02070437275 | |
| QoS Comms Ltd | Unit 442 Chambers Business Centre, Chapel Road, Oldham OL8 4QQ | 0330 0240399 | |
| Qpc Ltd | The Harlech Building, Theatre Clwyd Complex, Mold CH7 1YA | 08702421097 | |
| Qss IT Ltd | Office 1, 11-13 Eastover, Bridgwater, Somerset TA6 5AG | 01278 550 000 | |
| Quad Computer Services Ltd | 29 Orgreave Drive, Sheffield S13 9NR | 01142013950 | |
| Quadrant PowerComm (NI) Ltd | Quadrant PowerComm (NI) Ltd, Unit 14 Lisburn Enterprise Centre, Ballinderry Road, Lisburn BT28 2BP | 028 9262 8262 | |
| Quadrant Tech Ltd | Willow Tree House, The Retreat, Sawrty, Huntingdon PE28 5SX | 01480 257357 | |
| Quadris Ltd | Proaktive House, Doncaster DN4 5NU | 03451631080 | |
| Qualicom Solutions | 82 Greenbank Road, Watford, Hertfordshire WD17 4FL | 01923 229166 | |
| Qualitel International Ltd | Carrick Business Centre, Commercial Road, Penryn, Cornwall TR10 8AR | 01326 378 999 | |
| Qualitel Voice & Data Ltd | 2 Cherry Orchard Mews, Newcastle Under Lyme ST5 2UB | 01782 622288 | |
| Quality Telecoms And IT Ltd | Unit 2 Cash's Business Centre, 228 Widdrington Road, Radford, Coventry CV1 4PB | 07557875530 | |
| Quality Telecoms Services | http://www.quality-telecoms.co.uk/ | ||
| Quantum Communications Ltd | HQ Building, Brookenby Park, Brookenby, Market Rasen LN8 3HF | 01472397105 | |
| Quantumshift Enterprises Ltd | Exchange House, 12-14 The Crescent, Taunton TA1 4EB | 01825 288045 | |
| Quantusis Ltd | 51 St Vincent Road, Walton on Thames KT12 1PA | 01932269124 | |
| Quartizer | 61 Whitmore Avenue, Stifford Clays, Grays, Essex RM16 2HX | 01375888098 | |
| Quasar Computers Ltd | 85 Longbridge Road, Barking IG11 8TB | 020 8594 2244 | |
| Quayside Technical Services Ltd | Unit 5 Marlborough Court, Manaton Close, Exeter EX2 8PF | 01392 412 151 | |
| Qubic Group Plc | Athene House, 86 The Broadway, Mill Hill, LONDON NW7 3TD | 02086 017 019 | |
| Qubiti Ltd | International House, 38 Thistle Street, Edinburgh EH2 1EN | 01387402160 | |
| Qubix Technology Ltd | Unit 3 Eclipse Office Park, High Street, Staple Hill, Bristol BS16 5EL | 0117 957 4250 | |
| Qudo | https://www.qudo.com/ | ||
| Qudo | No 1 Croydon, 12-16 Addiscombe Rd, Croydon CR0 0XT | 020 8288 1234 | https://www.qudo.com/ |
| Quest Cloud Solutions Ltd | Vision House, Aaron Road Industrial Estate, Station Road, Whittlesey, Cambs PE7 2EX | 0845 5216000 | |
| Questmark Ltd | Park House, 104 Derby Road, Long Eaton, Nottingham NG10 4LS | 0330 300 0000 | |
| QuestZones (Europe) Ltd | The Digital Depot, Roe Lane, The Digital Hub DUBLIN 8 | +353 1 488 5863 | |
| Quickfire Broadband Ltd | Flat 58 Rosedale Mansions, Malm Street, Hull HU3 2TF | 01482765121 | |
| Quickline Communications Ltd | Kingston House, Saxon Way, Hessle HU13 9PB | 01482 247365 | https://www.quickline.co.uk/ |
| QuicknetUK Ltd | PO Box 6227, Daventry, Northants NN11 3ZS | 07977 270271 | |
| Quiits Consulting Ltd | Norwich Enterprise Centre,4BGuildhallHill, Norfolk NR2 1JH | 07894227582 | |
| Quintech Computer Systems Ltd | Green Lane Business Park, Green Lane,, Tewkesbury, Gloucestershire GL20 8SJ | 01684 882702 | |
| Quiss Technology PLC | 7 Claymore, Tame Valley Industrial Estate, Tamworth B77 5DQ | 01827 219 873 | |
| Quokka Solutions ltd | innovator house, Sunderland SR5 2TP | 01915166333 | |
| Quorum Business Systems Ltd | Quorum House, Watford Metro Centre, Tolpits Lane, Watford WD18 9XL | 01923 231536 | |
| QuoStar Solutions Ltd | Waverley House, 115-119 Holdenhurst Road, Bournemouth BH8 8DY | 0845 644 0331 | |
| QuVu | https://www.quvu.co.uk/ | ||
| QX Telecom Ltd | 2 Glenmore Close, Thatcham RG19 3XR | 0844 574 3333 | https://www.qxtelecom.co.uk/ |
| QXTEL | Oak House, 49a Uxbridge Road, London W5 5SB | ||
| R & A Software (Systems) Ltd | Unit 9-10, The Bridge Business Park, Beresford Way, Chesterfield S41 9FG | 03302231166 | |
| R Cooke | 2 Henson Close, South Church Enterprise Park, Bishop Auckland, Co. Durham DL14 6WA | 01388567120 | |
| R G C Telecommunications Ltd | Haughmond Farm, Felton Butler, Shrewsbury, Shropshire SY4 1AS | 07143 741188 | |
| R M Associates | 124 Frog Lane, Wigan WN6 7DS | 01942820520 | |
| R&M Rentals Ltd | 97-99 Worton Road, Isleworth TW7 6EG | 02085605331 | |
| R.S. and J.P.Price | Oak Tree Farm, Cressage, Shrewsbury SY56AD | 01952510428 | |
| R2 Computer Solutions | 143 Ladybridge Road, Cheadle Hulme, Cheshire SK8 5PL | 0161 408 2589 | |
| RA Information Systems | https://www.ra-is.co.uk/ | ||
| Rabbit Computers Ltd | Ashfield Ave, Bushey, Herts WD23 4HJ | 07050 013 000 | |
| Radcomm Uk Ltd | 352 WESTDALE LANE,, MAPPERLEY, NOTTINGHAM NG3 6ET | 01159522777 | |
| Rade New Media Ltd | The Granary, Hinton Lodge, Hinton, Saxmundham, Suffolk IP17 3RG | 01502 478 000 | |
| Radia Computer Services Ltd | 38b High Road, Bushey WD23 1GG | 02084218061 | |
| Radiocoms Systems | https://www.radiocoms.co.uk/ | ||
| RadioTrade | https://www.radiotrade.co.uk/ | ||
| Radius Communications Ltd | Radius Court, Eastern Road, Bracknell, Berks RG12 2UP | 020 3026 5200 | |
| Radius Connect Ltd | Euro Card Centre, Herald Drive, Crewe CW1 6EG | 02890021040 | |
| Radlea Ltd | Priestgate House, 3 ? 7 Priestgate, Peterborough PE1 1JN | 01733 302 591 | |
| RafiTel Ltd | 8 Chamber Hall Close, Oldham OL8 4DN | 01618700713 | |
| Rainbow IT Services LTD | 27 Kinson Way, Dover CT16 2FB | 01304800232 | |
| Rainbow Networks Ltd | Raleigh House, 9a Wellsway, Keynsham, Bristol BS31 1HS | 0117 9864777 | |
| Rainbow Telecom | Dundonald Business Park, Dundonald, Belfast BT16 1QT | 0871 230 4200 | https://www.rainbowtele.com/ |
| Rainton. Net Ltd | The Evolve Centre, Cygnet Way, Rainton Bridge South, Durham DH4 5QY | 0191 305 5005 | |
| Raisnia Ltd | 271 Shrewsbury Road, London E7 8QU | 02081333230 | |
| Rakore Ltd | 38 Eastcote Ave, South Harrow, Middlesex, LONDON HA28AL | 02083572665 | |
| Rallye Communications Ltd | Rallye House, Minstead Drive, Yateley, Hampshire GU46 6EH | 01252 863 720 | |
| RAM Global Industries Ltd | 11 Royston Avenue, Southend-on-sea SS25JY | 020 8090 1400 | |
| Rammacom Ltd | Heathercote, The Winnaway, Harwell, Didcot, Oxon OX11 OJG | 01235 884910 | |
| Ramsac Ltd | 1&2 Godalming Business Centre, Godalming, Surrey GU7 1XW | 01483 412040 | https://www.ramsac.com/ |
| RAOB GLE Solutions Ltd | Grove House, Skipton Road, Harrogate, North Yorkshire HG1 4LA | 01423 502 438 | |
| Rapid Communications Ltd | Harling House, 47-51 Great Suffolk Street, London SE1 0BS | 02035030678 | |
| Rapid Computers Ltd | Unit 10, Skyhawk Avenue, Speke, Liverpool L19 2QR | 01512821839 | |
| Rapid Response IT Ltd | 3000 Manchester Business Park, Aviator Way, Manchester M22 5TG | 01618204198 | |
| Rapid Rural Internet Services | https://www.rapidrural.co.uk/ | ||
| Rapid VOIP | 5 Jenner Close, Melton Mowbray LE13 1DG | 01572 335020 | |
| Rapidcom Ltd | Crown House, North Circular Road, Park Royal NW10 7PN | 020 8961 1415 | |
| Rapier Systems | https://rapiersystems.com/ | ||
| RAS Data Support Ltd | Bedford Business Centre, 61-63 St Peters Street, Bedford MK402PR | 01234 860099 | |
| Raspberry Beret Ltd | Distillery House, Premier Business Park, Loushers Lane, Warrington WA4 6DN | 0844 318 2828 | |
| Raspberry Communications Ltd | Darwin House, Southernhay Gardens, Exeter EX1 1NP | 0844 873 2250 | |
| Ratcliff Consulting Ltd | 1st Floor Totteridge House, 1 Allum Way, London N20 9QL | 0844 544 2921 | |
| Ratebuster | 6 Snow Hill, London EC1A 2AY | 0844 552 8576 | https://www.ratebuster.co.uk/ |
| Rates Circle Ltd | 5a Watkin Road, Wembley HA9 0NL | 0203 841 9935 | |
| Ravenbridge Ltd | Unit 19, Oakhurst Business Park, Southwater, West Sussex RH13 9RT | 01403 330 170 | https://www.ravenbridge.co.uk/ |
| RaveX IT Services | 4 South Street, Crewkerne TA18 8DA | 01460 298 220 | |
| RAW Tech Solutions Ltd | 47 Prideaux Road, Eastbourne BN21 2NB | 01323403503 | |
| Raw Telecom Ltd | Manvers House, Pioneer Close, Rotherham, South Yorkshire S63 7JZ | 0845 121 0206 | |
| RawApple Communications Ltd | 3 Warners Mill, Silks Way, Braintree CM7 3GB | 0844 576 3188 | https://www.rawapple.co.uk/ |
| Razorblue Ltd | 12 Bailey Court, Colburn Business Park, Catterick DL9 4QL | 0333 3446344 | |
| RBA Group LTD | suite 3 Royce House, 630 - 634 london road, southend SS09HW | 01702680108 | |
| RCG Global Networks Ltd | |||
| RCS Communications Ltd | Unit 12 Pegasus House, 17 Burleys Way, Leicester LE13BH | 01163667020 | |
| RDC IT Solutions Ltd | 11 Corfe Meadows, Milton Keynes MK10 7DL | 01908 394987 | |
| RDS Global | RDS Global Alfreton Road, Derby DE21 4AA | 0845 166 2358 | |
| RDT (Southern) Ltd | Unit 8 Crown Yard, Bedgebury Road, Goudhurst TN17 2QZ | 0871 9898 148 | |
| RDT Office Solutions Group | Station House, 191-195 Windmill Lane, Cheshunt, Herts EN8 9AW | 0844 264 0791 | |
| Re4mit Ltd | 18 Beaumont Chase, Bolton, Greater Manchester BL3 4XH | 07734715609 | |
| Reach Digital Telecoms Ltd | the chestnuts, aston road, wem SY4 5JD | 07500 737377 | https://reachdigitaltelecoms.co.uk/ |
| Reach Europe Ltd | 50-52 Paul St, London EC2A 4LB | https://www.my.telstra.com.au/ | |
| Reach Internet Ltd | Suite 22 Telford Business Centre, Halesfield 8, Telford, Shropshire TF7 4QN | 0330 088 2684 | |
| Readycrest Ltd | 14, Stirling Park, Rochester, Kent ME1 3QR | 01634 661166 | |
| Real Agent Enterprise LTD | Unit 16, 400 Rodding Lane South, Ilford, London IG8 8EY | 02037731885 | |
| Real Agent Group Ltd | Real Agent HQ, 32 Bloomsbury St, Bloomsbury, London WC1B 3QJ | ||
| Real Telekom Ltd | (Creditors voluntary liquidation July 2019) | https://www.realtelekom.com/ | |
| Real Time Telecoms Ltd | Lower Farm, Preston On Stour, Stratford Upon Avon, Warcs CV37 8NG | 033 0066 6444 | http://handt-communications.co.uk/ |
| Realcom Applications | Froggarts Cottage, School Lane, Coleorton, Leicestershire LE67 8HT | 01530 440 000 | |
| Realemail | https://realemail.co.uk/ | ||
| Reality Network Services Ltd | Morcott, Old Rectory Drive, Eastergate West Sussex PO20 3XH | 0844 802 1110 | http://realitytelecom.com/ |
| Reality Telecom Ltd | Morcott, Old Rectory Drive, Eastergate West Sussex PO20 3XH | 0844 802 1110 | http://realitytelecom.com/ |
| Really Clever Ltd | 1St Floor, Astley Lodge, 2 Queens Road, Chorley PR711JU | 01257 752519 | |
| Realm Business Systems Ltd | 38 Croft Gardens, Charlton Kings, Cheltenham, Gloucestershire GL53 8LG | 01242 232 274 | |
| Realmgate Ltd | Unit 8a Level 9, The Plaza Tower, The Plaza, Town Centre, East Kilbride, Glasgow G74 1LW | 01355 459772 | |
| Realta UK Ltd | Priestgate House, 3-7 Priestgate, Peterborough PE1 1JN | 0870 220 7220 | |
| Realtime Business Services | The Birches, 82 Church Street, Pinchbeck, Spalding PE11 3YA | 0845 006 0870 | |
| Realtime Europe Ltd | 37 Golden Ball Lane, Pinkneys Green, Maidenhead SL6 6NW | 02085758588 | |
| Realty Assets Investments Ltd | 133 Manor Road, London CR4 1JT | 07462196489 | |
| Rebooting IT Ltd | Plaza 9 Kd Tower, Cotterells, Hemel Hempstead HP1 1FW | 0330 043 0694 | |
| Rebtel Services Sarl | 9A Bd Prince Henri, L-1724 Luxembourg, Luxembourg | https://www.rebtel.com/ | |
| Record Digital Ltd | Fairfield, Clee Hill SY8 3PQ | 01584 891346 | |
| Telecoms Cloud Networks Ltd | https://www.recordyourcall.co.uk/ | ||
| Recto Ltd | 132 Avenue Road, Erith DA8 3AU | 07724237328 | |
| Red Cloud Group Ltd | 27 Old Gloucester Road, London WC1N 3AX | 02036032086 | |
| Red Communications Global Ltd | HIGHSTONE HOUSE, 165, High Street, Barnet EN5 5SU | 020 8440 0007 | |
| Red Data UK Ltd | The Farmhouse, East Wolves Farm, Ashington RH20 3AX | 01903203443 | |
| Red Dragon I.T. Ltd | Hanover Mill, Mersham, Ashford, Kent TN25 6NU | 01233 808909 | |
| Red Embedded Systems Ltd | The Wave, 1 View Croft Road, Shipley, Bradford BD17 7DU | 01274 287700 | |
| Red Gorilla UK Ltd | Larch House, Parklands Business Park, Forest Road, Denmead, Hampshire PO7 6XP | 02392 009 000 | |
| Red Matter | 42a Station Road East, Oxted, Surrey RH8 0PG | 020 7138 2969 | https://www.redmatter.com/ |
| Red Mosquito Ltd | 21 Blairtummock Place, Glasgow G33 4EN | 01413487950 | |
| Red Nova Solutions Ltd | Unit 3 Brunel Units, Brunel Road, Gorse Lane Industrial Estate, Clacton on Sea CO154LU | 01255750057 | |
| Red Rock Communications Ltd | 20 Taunton Grove, Whitefield, Bury, Manchester M456TJ | 01614706212 | |
| Red Squared | |||
| Red Telecom Solutions Ltd | Arrow Mill, Queensway, Rochdale OL11 2YW | 0330 2 030303 | http://redtelecomsolutions.com/ |
| Red5 Networks Ltd | 102 Hellesdon Park Road, Norwich NR6 5DR | 01603859669 | |
| Redbox Internet Services Ltd | PO Box 48, Chapel en le Frith, High Peak SK23 0WP | 01298 600 090 | |
| Redbrick IT Solutions Ltd | 2 Rous Court, Baston, Bourne PE6 9AF | 01778393495 | |
| Redcare 5G | https://www.redcare5g.com/ | ||
| Redcentric PLC | Newton House, Cambridge Business Park, Cowley Road, Cambridge CB4 0WZ | 0845 034 1111 | https://www.redcentricplc.com/ |
| Redcentric Solutions Ltd | Central House, Beckwith Knowle, Harrogate HG3 1UG | 01423 850000 | https://www.redcentricplc.com/ |
| RedCherryIT Ltd | Someset House, 6070 Birmingham Business Park, Birmingham B37 7BF | 0800 668 1150 | |
| Redd Group Ltd | 253-255, Queensway, Bletchley, Milton Keynes MK2 2EH | 01908403040 | |
| RedDoor Supplies Ltd | Tanfield House, 84 Southbridge Road, Croydon CR0 1AE | 02085409020 | |
| Redinet Ltd | 1 Stanley road, bromley BR29JE | 02082497000 | |
| Redlet | Unit 19, Barton Business Park, Canterbury CT13AA | 01227808534 | |
| Redline Tele.com Ltd | 13 Commercial Road, Hereford HR1 2BB | 01432 359933 | https://www.redlinetele.com/ |
| Redmine Networks Ltd | 30 Knighton Close, Northampton, Northamptonshire NN5 6NE | 08448082528 | |
| Redpalm Technology Services Ltd | 12 Moulton Park Office Village, Northampton NN36AP | 03330069170 | |
| Redserv Ltd | RedServ Ltd, Unit 23, Broadgate, Broadway Business Park, Oldham OL9 9XA | 01618831773 | |
| Redshelf Ltd | InTouch Systems, 36 Hurricane way, Norwich NR6 6HU | 0160 342 5209 | |
| Redsquid Communications Ltd | Premiere House, Elstree Way, Borehamwood, Herfordshire WD6 1JH | 020 8166 4540 | https://www.redsquid.co.uk/ |
| Redstar Telecom Ltd | |||
| Redstar Telecommunications Ltd | Kestrel Court Business Park, Harbour Road, Portishead, Bristol BS20 7AN | 01275 295 100 | |
| Redstone Managed Solutions Ltd | Griffin House, 18-19 Ludgate Hill, Birmingham B3 1DW | 0845 201 0000 | |
| Reducer Ltd | 118A London Wall, London EC2Y 5JA | 02039704686 | |
| Redwax Ltd | Kemp House, 152 City Road, London EC1V 2NX | 01608 638 422 | |
| Redwing Computers | 29 Harrington Place, Brighton BN1 7HL | 01273 561691 | |
| Redwood Technologies Ltd | Radius Court, Eastern Road, Bracknell, Berks RG12 2UP | 01344 304344 | https://www.redwoodtech.com |
| Redwood Telecommunications Ltd | Trade Tower, Plantation Wharf, London SW11 3UF | 020 7738 1000 | |
| Reebex | The New House, Kyre, Tenbury Wells, Worcestershire WR15 8QB | 01584 700 070 | |
| Reefstream Ltd | Beaumont House, 74/76 Church Road, Stockton-on-Tees TS18 1TW | 0191 300 0200 | https://www.reefstream.com/ |
| Reeves Lund & Co Ltd | The Courtyard, 55 Charterhouse Street, London EC1M 6HA | 020 7739 8888 | |
| Reflections Office Solutions Ltd | Unit 20 Thornhill Road, North Moons Moat, Redditch, Worcestershire B98 9ND | 0152763662 | |
| Refresh Support Ltd | 86a Station Road, Yate, Bristol BS37 4PH | 01454838490 | |
| Regency Grove Communications Ltd | 87a Victoria Road, Horley, Surrey RH6 7QH | 0844 770 7977 | |
| Regentcomms Ltd | 1 Stanmor House, Cape Industrial Estate, Cattell Road, Warwick CV34 4JQ | 0333 321 4500 | |
| Regis II Ltd | 2 Bramley Gardens, Bognor Regis PO22 | 01243869000 | |
| Regis IT | https://www.regis-it.co.uk/ | ||
| Register365 | https://www.register365.com/ | ||
| Resolutions IT Ltd | 9 Castle Parade, Bournemouth BH7 6SH | 01202 237 273 | |
| Rejuvenate IT | https://www.rejuvenate.it/ | ||
| Relax Telecom Ltd | Suite 5 Marple House, 39 Stockport Rd, Marple, Cheshire SK6 6BD | 033 3988 9888 | https://www.relaxtelecom.co.uk/ |
| Relevance Ltd | 56 Station Road, Waddington, London LN5 9QW | 08700 501101 | |
| Reliance IP Networks Ltd | Big Storage, Fence Avenue, Macclesfield SK10 1LW | 0845 070 4607 | |
| Reliant (UK) LTD | Cambrian Buildings, Coney Green, Oswestry SY11 2JL | 01691898007 | |
| Rely Telecom | |||
| Relyon IT (Uk) Ltd | 1386 London Road, Leigh On Sea SS9 2UJ | 01268858041 | |
| REM Plus Ltd | Unit 6 Rotunda Industrial Estate, Aldershot GU11 1TG | 01252343345 | |
| Re-mark Telecommunications Ltd | Unit 29 Aston Business Park, Shrewsbury Avenue, Woodston, Peterborough PE2 7BX | 01733 405 965 | |
| Remedian IT Solutions Ltd | 2 Barker Street, Oldham OL1 2AD | 07890920473 | |
| Remote IT Ltd | Pant Hoyw, Bryneglwys, Corwen, Denbighshire LL21 9ND | 01490 340 034 | |
| Remote Support Ltd | Unit 5 Little Hyde Farm, Ingatestone CM4 0DU | 0845 451 2028 | |
| Remote Systems Management | 73 Brackendale Drive, Walsall WS5 4DA | 0845 330 9478 | |
| Repair My Console Ltd | 70 Woodgate, Leicester LE3 5GG | 0116 2623999 | |
| Replicated Solutions Ltd | Chapel House, The Hill, Langport TA10 9PU | 07769320666 | |
| Reseaux Partners Ltd | Concorde House, Suite 16, Greenville Place, Mill Hill NW7 3SA | 020 8068 3146 | |
| Resel Communications Ltd | Tesla Court, 8 Innovation Way, Peterboroguh Business Park, Cambridgeshire PE2 6FL | 0845 676 2020 | |
| Resilient PLC | 25-27 Shaftesbury Avenue, London W1D 7EQ | 020 3162 3000 | https://www.resilientplc.com/ |
| Resman Ltd | 22 Rose Lane, Liverpool L18 5ED | 0151 729 0101 | |
| Resolutions IT Ltd | 9 Castle Parade, Bournemouth BH76SH | 01202 237273 | |
| Resolve Information Technology Ltd | Graham House, Chequers close, Enigma Business Park, Malvern WR14 1GP | 01684 899403 | |
| Resolve IT Solutions Ltd | Nursery Works, Little London Road, Sheffield S8 0UJ | 01142 994 050 | |
| Resource Information Technology Ltd | Cathedral Chambers,, 2 Peacock Lane, Leicester LE1 5PX | 0800 6129322 | |
| Resource Network Solutions Ltd | Unit 1 Nasmyth Building, Nasmyth Avenue, Scottish Enterprise Technology Park, East Kilbride G75 0QR | 01355 575111 | |
| Resource Telecom Ltd | Unit 1, Nasmyth Building, Nasmyth Avenue, Scottish Telecom Technology Park, East Kilbride G75 0QR | 01355 575111 | |
| Resource Utilities Ltd | Torlundy House, Wood Road, Hinhead, Surrey, GU26 6PT | 0845 233 2222 | https://www.resource-utilities.com/ |
| Response Gaming Ltd | The Quadrus Centre, Woodstock Way, Boldon Business Park, Boldon Colliery NE35 9PF | 01915197328 | |
| Response IT Services Ltd | The Meeting House, 31 Prospect Place, Epsom, Surrey KT17 1WW | 0844 225 5000 | |
| ResQNet | https://www.resq.co.uk/ | ||
| Retail Merchant Group Ltd | Matrix House, North Fourth Street, Milton Keynes MK9 1NJ | 08452419960 | |
| Retail Secure Ltd | 1st Floor, 2 Woodberry Grove, Finchley, London N12 0DR | 07496137469 | |
| Retail Technology Services | Brooke House, 4 The Lakes, Northampton NN4 7YD | 0844 840 7666 | https://www.rtsl.net/ |
| Rethink Printing Ltd | Unit 2 Mortimer Business Park, Mortimer Road, Hereford HR4 9SP | 01432272233 | |
| Reticom Ltd | Unit 9 Kiln Acre Business Park, Wickham Road, Fareham PO16 7JS | 01329 888 166 | |
| Retriever Technology Ltd | Stoney Cross Villa, Bickley Lane, Newnham Bridge, Tenbury Wells WR15 8LP | 01584-781444 | |
| Retrospective Techniques Ltd | Karrick House, Rugby Road, Rochdale OL12 0DZ | 01706 644 620 | |
| Revo IT Solutions Ltd | Silicon House, 14 Stanmore Street, SWindon SN13PX | 03333350170 | |
| Revoblue Communications Ltd | 11 Octavian Way, Kingsnorth, Ashford TN23 3RN | 01233555470 | |
| Revo-IT Ltd | Kirkhill House, Broom Road East, Newton Mearns, Glasgow G77 5LL | 01416379694 | |
| Revolution Communications Ltd | 3 Searles Close, London SW11 4RG | 0844 581 7000 | |
| Revolution Phones Ltd | Dalton House, 60 Windsor Avenue, London SW19 2RR | 020 8619 0100 | |
| Reynolds and Reynolds Ltd | 1200 Bristol Road South, Birmingham B31 2RW | 01214832000 | |
| Rezno Ltd | Unit 16 Abbots Business Park, Primrose Hill, Kings Langley WD48FR | 01923919240 | |
| Rfp Network Solutions Ltd | 224, Chester Road North, Sutton Coldfield, West Midlands B73 6SH | 07736677444 | |
| RGB Solutions Ltd | Bonnington Mill, 72 Newhaven Road, Edinburgh EH6 5QG | 0131 554 8888 | |
| RGT Ltd | Northdown House, Chapel Road, Smallfield RH6 9NW | 0870 777 2444 | |
| Rhema Telecom Ltd | 27 Braxted Park, Streatham Common, London, SW16 3DU | ||
| RHM Telecommunications Ltd | Goodridge House, Goodridge Avenue, Gloucester GL2 5EA | 01452 511 325 | https://www.rhmtelecom.com/ |
| Rhoden Ltd | 14 London Road, Hurst Green, Etchingham, East Sussex TN19 7QP | 01580 861 288 | |
| Richard Portway | 16 Churchfields, Stansted CM24 8RJ | 03333442290 | |
| Richardson Business Equipment Distributors Ltd | The Business Centre, Bradford BD12 0RA | 01274 675515 | |
| Richdom Ltd | West Retford Hall, Rectory Road, Retford DN22 7AY | 01777 802802 | |
| Ridgewall Ltd | 16 Anning Street, Shoreditch, London EC2A 3HB | 0207 749 4321 | |
| Ridgeway IT Ltd | 3 Diamond Way, Chilton OX11 0TT | 01235 250015 | |
| Ridgeway Phones Ltd | The Orangery, East Lockinge, Wantage, Oxon OX12 8QJ | 01235 820 800 | |
| Ridgeworks Ds Ltd | 332 meanwood road, leeds LS72JF | 01132166777 | |
| Right Deal Global Ltd | 130 Old Street, London EC1V 9BD | 07400433433 | |
| RightCall | http://www.rightcallapp.co.uk/ | ||
| RightStream IT | 53 Harewood Lane, Upton, West Yorkshire WF9 1HZ | 01977 878 259 | |
| Ring Telecom Ltd | 6th Floor, Britannia House, 960 High Road, London N12 9RY | 0330 700 0029 | |
| Ring2 Communications Ltd | 12 Tokenhouse Yard, London EC2R 7AS | 0845 0800 877 | |
| RingCentral UK Ltd | 85 Uxbridge Road, 2nd Floor, Ealing, London W5 5TH | 0800 756 5159 | https://www.ringcentral.co.uk/ |
| Ringcom Ltd | 17 Moooreoaks Rd, Sheffield S10 1BX | 07510695002 | |
| Ringsmart Ltd | One Elmfield Park, Bromley, London BR1 1LU | 02037781202 | |
| Ringwood Internet Ltd | 43 Southampton Road, Ringwood BH24 1HE | 01425 206 351 | |
| Rio IT Ltd | S5, Dugard House, Peartree Road, Colchester CO3 0UL | ||
| Ripple Communications Ltd | |||
| Risc Group IT Solutions Ltd | Church Walks Business Centre, Church Walks, Llandudno, Conwy LL30 2HL | 01492 862780 | |
| Rise 6 Ltd | 6 Rainsborough Rise, Dussindale, Norwich NR7 0TR | 07880232321 | |
| Rise Telecom Ltd | Unit 2b Kenyons Yard, Weyhill Road, Andover SP10 3NP | 07818404124 | |
| risual Ltd | risual house, 12 Parker Court, Staffordshire Technology Park, Stafford ST18 0WP | 0845 680 0077 | |
| Rite IT Solutions Ltd | Meadow Park, Stamford PE9 4LT | 01780758581 | |
| River Business Services Ltd | Unit G6 The Bloc, 38 Springfield Way, Anlaby, Hull HU10 6RJ | 01482 272728 | |
| River Technologies Ltd | 93 Regents Way, Euxton, Chorley PR7 6PG | 07583011811 | |
| Riverbank IT Management | 180 Miltonn Park, Abingdon, Oxford OX14 4SE | 0845 680 9680 | |
| Riviera Networks Ltd | 7 Sopwith Crescent, Hurricane Way, Wickford, Essex SS11 8YU | 0845 2702 742 | |
| RJ Cortel Ltd | Units 18 Silveroaks Farm, Waldron, Heathfield, East Sussex TN21 0RS | 01435 811 580 | |
| Rls Comms Ltd | Corner Oak, 1 Homer Road, Solihull B91 3QG | 07816819673 | |
| RLS Computer Services Ltd | Clenchwarton, Kings Lynn PE34 4AW | 01553 776937 | |
| RM Computing (Orkney) Ltd | Innovation Centre - Orkney, Hatston Pier Road, Kirkwall KW15 1ZL | 01856872358 | |
| RM Consulting | 24 Chester Close, Shotton, Deeside, Flintshire CH5 1AU | 01244 458 765 | |
| RM Education Plc | 183 Milton Park, Abingdon, Oxon OX14 4SE | 08450 700 300 | |
| Rmt Accountants & Business Advisors Ltd | RMT ACCOUNTANTS & BUSINESS ADVISORS LTD, GOSFORTH PARK AVENUE, NEWCASTLE UPON TYNE NE128EG | 01912569550 | |
| Roadmap IT Ltd | Unit 2.04, 14 Greville Street, London EC1N 8SB | 0203 735 9733 | |
| Roadphone Ltd | Pinfold Road, Bourne, Lincolnshire PE10 8HT | 01778 421 250 | |
| Roadphone t/a National Radio Bank | https://www.roadphone.co.uk/ | ||
| Robert Gerrard | 14 Harebell Close, Minster ME12 3ER | 01795 858087 | |
| Robert Hall Business Equipment | Unit 200, Commerce Road, Ashville Business Park, Cheltenham Road East, Gloucester GL2 9QJ | 01452858100 | |
| Robert Heath Technology LTD | 264 Burlington Road, New Malden KT3 4NN | 020 8336 6767 | |
| Robo Group Ltd | 36 Mealsgate, Peterborough PE4 7LQ | 01733759777 | |
| ROCC Computers Ltd | Standford Gate, South Road, Brighton BN1 6SB | 01273 274 747 | |
| Rochester & Associates Ltd | Sancorp House, 836 Leeds Road, Bradford BD3 9TX | 01274 662 953 | |
| ROCK Comms | https://www.rockcomms.com/ | ||
| Rock I.T. Specialists Ltd | 27-28 Old Field Road, Bocam Park, Pencoed, Bridgend CF355LJ | 03442722288 | |
| Rock Internet Ltd | Rock Internet Ltd, 5 Forest House, 186 Forest Road, Loughton IG10 1EG | 08455192920 | |
| Rock IT Ltd | York House, Queens Road, Barnet, Hertfordshire EN5 4DJ | 020 8441 5444 | |
| Rock IT Group Ltd | Hambridge Barn, Hambridge Road, Newbury, Berkshire RG14 2QG | 01635 56 7777 | |
| Rock Networks Ltd | Stone Cross Court, Stone Cross Park, Golborne, Warrington WA3 3JD | 0844 326 7000 | |
| Rock Systems Ltd | 15 High Street, Newton-le-Willows, Merseyside WA12 9SP | 0844 326 8000 | |
| Rocket Unified Communications Ltd | The Gatehouse, Cockpit Lane, Pontefract WF8 1HH | 01977526282 | |
| RockIT Networks Ltd | 81 Huntingfield Road, London SW15 5EA | 07956 920 581 | |
| Rocom Network Services Ltd | Thorp Arch, Wetherby, West Yokshire LS23 7BJ | ||
| Roda Telecom Ltd | Sheffield Business Centre, Europa Link, Sheffield S9 1XZ | 0115 2352355 | |
| Roebuck Communications Ltd | 6 Bath Place,, Rivington Street, London, EC2A 3JE | 0800 781 3030 | |
| Roedale Systems Ltd | 56 Ash Hill Crescent, Hatfield, DONCASTER DN7 6QU | 01302841779 | |
| Roffe Ltd | The Lodge, Ashwellthorpe NR16 1EX | 01603670911 | |
| Rojo Trading Ltd | 33 Wingate Way, Trumpington, Cambridge CB2 9HD | ||
| Romquick Ltd | The Gables, Pankridge Drive, Great Missenden HP16 9BZ | 01494862406 | |
| Room57 Ltd | 1 Hockley Lane, Wingerworth, Chesterfield S42 6QG | 0115 727 0633 | |
| HQ Telecom Ltd | Unit 51 Waterside Trading Centre Trumpers Way London W7 2QA | 0844 901 0044 | |
| Rose Communications (UK) Ltd | 92-94 Stamford Hill, London N16 6XS | 020 8815 4120 | |
| Rosebrook International Group | Unit 4 Pyke Road, LINCOLN LN1 2BG | 01522 846 000 | |
| Roswell IT Services Ltd | James Watt Centre, Scottish Enterprise Tech. park, East Kilbride G75 0QD | 01355 265 588 | |
| Rotary Consultants Ltd | Westwood House, 78 Loughborough Road, Quorn, Loughborough LE12 8DX | 01543414444 | |
| Rotel Telecommunications Ltd | 12 Dagger Lane, West Bromwich, West Midlands B71 4BA | 0121 525 5757 | |
| Roundworks IT Ltd | Enterprise Centre, 6 David Lane, Nottingham NG6 0JU | 03333444645 | |
| Row Broadband Ltd | Richarmond House, Richmound Hill, Bournmouth BH2 6EZ | 07920017288 | |
| Rowan Associates | 93 Bullwood Road, Dunoon PA23 7QL | 07904333430 | |
| RPM Business Communications Ltd | Innovation Centre, The Norwich Research Park, Colney Lane, Norwich, Norfolk NR4 7GJ | 0333 600 6999 | |
| RPS Communications Ltd | Technium Springboard Centre, Llantranam Park, Cwmbran, Newport NP44 3AW | 0845 450 78444 | https://www.rpscommunications.co.uk/ |
| RPS Telecom Ltd | Technium Springboard Centre, Llantranam Park, Cwmbran, Newport NP44 3AW | 0845 450 78444 | |
| Rra Services Ltd | Kemp House, 152-160, City Road, Londaon EC2V 2NX | 01531556005 | |
| RRD Communications Ltd | Glencroft House, Vale Road, Heaton Mersey, Stockport SK4 3QR | 0161 443 5000 | |
| RSCC Ltd | suite 18 intech house, hitchin SG4 0TW | 01462458571 | |
| Rs-It Solutions Ltd | 15 Memorial Road, Walkden, Worsley, MANCHESTER M28 3AQ | 01616600368 | |
| RSM 200 Ltd | Wrest Park, Silsoe, Beds MK45 4HS | 01525 862 555 | |
| RSR Communications Ltd | 175 Claremont Road, Salford, Manchester M6 8PA | 0161 790 4392 | https://www.rsrcommunications.co.uk/ |
| RT Telecom Services Ltd | 459 Footscray Road, London SE9 3UL | 0333 321 4235 | |
| RTF Networks Ltd | 11 James Whatman Court, Turkey Mill, Ashford Road, Maidstone ME14 5PP | 0844 247 4480 | |
| RTL Technologies Ltd | Lindsay House, 15/17 Springfield Way, Anlaby, Hull HU10 6RJ | 01482770411 | |
| RTP Solutions UK Ltd | 76-77 Watling Street, London EC4M 9BJ | 0800 915 7768 | |
| Rubicon Workflow Solutions | Unit 8 Campbell Court, Bramley RG26 5EG | 0844 880 0015 | |
| Rubix VT Ltd | 57 Thornhill Avenue, Brighton BN1 8RG | 02037404923 | |
| Runfold Sales Ltd | Runfold Place, Guildford Road, Farnham GU101PG | 01483600006 | |
| Ruraband | 3 James Clay Court, Telford TF1 5DW | 01952796516 | |
| Rural Communications Solutions | 6 Brunswick Street, Carlisle CA1 1PN | 01228 217070 | |
| Rushdan Ltd | OFFICE SUITE 2, HAGLEY GOLF AND COUNTRY CLUB BUSINESS CENTRE, WASSELL GROVE LANE, HAGLEY DY8 2HH | 03300245077 | |
| Rushton Networks Ltd | Unit 15, Walworth Enterprise Centre., West Way, Andover SP10 5AP | 01264 554005 | |
| Russell Telecom Ltd | Communications House, Unit 11 Keel Row, The Watermark, Metro Riverside, Gateshead NE11 9SZ | 0191 461 4200 | https://www.russell-telecom.co.uk/ |
| Russell Telecom Network Solutions | https://www.russell-telecom.co.uk/ | ||
| Rutland Communications Ltd | PO Box 7960, Market Harborough, Leicestershire LE16 0AA | 0870 161 3388 | |
| Rutland IT Ltd | Unit J, Edison Courtyard, Earlstrees Industrial Estate, Corby NN174LS | 01572 842005 | |
| Rutland Telecom | |||
| RV Consulting Solutions Ltd | JWS, Hopper Hill Road, Scarborough YO11 3YS | 01723817170 | |
| Rvs IT Ltd | 35 New Broad Street, New Broad Street House, London EC2M 1NH | 02081917299 | |
| RW Communications Ltd | RW Communications Ltd, Lakeside House, 1 Furzeground Way, Stockley Park, Uxbridge UB11 1BD | 0845 688 6888 | |
| Ryan Ventura Ltd | 57 Pipersfield, Uckfield, East Sussex TN22 5SD | 01825 750800 | |
| Rydal Communications Ltd | Unit 12 Papyrus Business Park, Papyrus Rd, Werrington, Peterborough PE5 5BH | 0845 224 7017 | https://www.rydalcommunications.com/ |
| Ryland Communications Ltd | 2 Beaufort House, Beaufort Court, Medway City Estate, Rochester, Kent ME2 4FB | 01634 731360 | https://www.rylandcommunications.co.uk/ |
| Ryse Group Ltd | 2 Glaisdale Road, Hall Green, Birmingham B28 8PX | 07724537972 | |
| S A Brain & Co Ltd | Crawshay Street, Cardiff CF10 1SP | 02920334700 | |
| S B Associates Ltd | 7 Radford Crescent, Billericay, Essex CM12 0DU | 08448 841144 | |
| S W Direct Ltd | The Church Offices, Market Gate, Salop Road, Oswestry SY11 2NR | 03330066307 | |
| S&H Computer Consultants Ltd | 9 Highfield drive, Shortlands, Bromley BR2 0RX | 02081661679 | |
| S&S Communications | S&S Communications, Unit 6 Greenbank Ind Est, Newry, Co Down BT34 2QX | 029 3026 0864 | |
| S. Bonnett | 99 Waterleat Avenue, Paignton TQ33UD | 07832303609 | |
| S2 Computers Ltd | 44 Keys Drive, Wroxham, Norwich NR12 8SS | 01603670682 | |
| S2 Networks Ltd | Galtons Mill, Galtons Lane, Belbroughton, West Midlands DY9 9TS | 0845 6197 197 | |
| S3S IT | The Boathouse, Wisbech PE13 3BH | 01945 585676 | |
| Sa Utilities Ltd | 78 The Crescent, New Malden KT3 3LH | 01865600632 | |
| SA1 Telecoms Ltd | Systems House, Phoenix Way, Garngoch, SWANSEA SA49WF | 01792293322 | |
| Saasage Ltd | Hyde Park House, Cartwright St, Newton, Hyde SK14 4EH | 01618207533 | |
| Sabio Network Services Ltd | Enterprise House, 1-2 Hatfields, London SE1 9PG | 020 7633 3900 | |
| Sabre Solutions | 20 Star Road, Ashford, Kent TN24 8BX | 01233 335 873 | |
| SAC Marketing Ltd | Lincoln House, Derby DE23 8LT | 0870 116 0555 | |
| SACS Software Ltd | 31 Metro Centre, Britannia Way, Park Royal, London NW10 7PA | 020 8961 5151 | |
| sacsadsl | Millside,, 133 High Street,, Wollaston, Stourbridge DY8 4NZ | 01384358341 | |
| SADS IT Ltd | 7 Albion Place, Maidstone ME14 5DY | 03448111167 | |
| SAECOM Ltd | Cherry Tree House, Carmarthen Road, Swansea SA1 1HE | 01792 654 000 | |
| SAFE HOSTS INTERNET LLP | Saxon House, Saxon Way, Cheltenham GL52 6QX | 01242 234567 | |
| Safe Online Billing Ltd | 3 Coral Crescent, Warsop, Mansfield, Notts NG20 0FP | 0845 074 3777 | http://www.safeonlinebilling.com/ |
| Safe Patient Systems Ltd | Safe Patient Systems Ltd, The Oracle Building, Blythe Valley Park, Birmingham B90 8AD | 0121 506 9620 | |
| safe secure safe LTD TA LMC | Unit 421 Enterprise Cresent, Lisburn BT282BP | 07889732421 | |
| Safeguard Communications (UK) Ltd | 26 York Street, Mayfair, London W1U 6PZ | 0207 1121 999 | http://www.safeguardcommunications.co.uk/ |
| Safeguard Ict Ltd | 2 Endeavour House, Plymouth PL6 8LR | 01752710102 | |
| Safeguard IT Ltd | 1b The Courtyard, Brownlow Street, Stamford PE9 2EL | 01780 270001 | |
| Safeserve.com Ltd | 86 Beaufort Street, Chelsea, London SW3 6BU | 020 7349 1570 | |
| Safevoip Ltd | 36 Brook Road, Rayleigh SS67XJ | 020 3318 5381 | |
| Saga Services Ltd | The Saga Building, Middelburg Square, Folkestone, Kent CT20 1AZ | 0800 559 3230 | https://www.saga.co.uk/ |
| Sagari Ltd | Business Centre, Little high Street, Shoreham-by-Sea BN43 5EG | 01273 855765 | |
| Sage Telecom Ltd | Unit 36 Sandy Road, Norton, Stourbridge, West Midlands DY8 3AH | 0845 3711555 | https://www.sagetelecom.co.uk/ |
| Network Services.com Ltd | 8 Foundry Court, Daventry Northants NN11 4RH | 0845 4503401 | |
| Saiph Communications Ltd | Gainsborough House, 2 Sheen Road, Richmond TW9 1AE | 020 8150 1237 | |
| Sala Trading Ltd | 121 Edgware Road, London W2 2HX | ||
| Salop Computer Centre Ltd | salop music centre, st michaels street, shrewsbury SY1 2DE | 01743233550 | |
| Salop Technology Ltd | 11/12 the parade shopping centre, shrewsbury SY11DL | 07814489627 | |
| Salt Network Consulting Ltd | 15 Netherside Drive, Chellaston DE73 6QU | 0333 1233444 | |
| Saltire Telecom Ltd | 272 Bath Street, Glasgow G2 4JR | 0333 800 7201 | |
| Salvation Telecom Ltd | 32A Station Parade, Barking IG11 8DR | 02034753703 | |
| Samaya Ventures Ltd | 11th Floor The Mille, 1000 Great West Road, Brentford TW8 9DW | 02078704841 | |
| Sand Communications Ltd | The Station, 77 Canal Road, Leeds LS12 2LX | 08447360139 | |
| sandrabell | 3, Seven Mile House Cottages, Newcastle upon Tyne NE136BS | 01912367723 | |
| SaneChoice Ltd | 45 King William Street, London EC4R 9AN | 0203 397 7860 | |
| San-It Ltd | 27a Station Road, Cheadle Hulme, Cheadle SK8 5AF | 01613593689 | |
| Sansaw Properties Ltd | The Estate Office, Sansaw Business Park, Hadnall, Shrewsbury SY4 4AS | 01939 211100 | |
| Santora Technology UK Ltd | 4 Darwin Crt, Oxon Business Park, Shrewsbury SY3 5AL | 020 3411 2115 | |
| Sapphire Business Solutions UK Ltd | Galtons Mill, Galtons Lane, Belbroughton DY9 9TS | 0845 180 1263 | |
| Sapphire Communications Ltd | 76 Herongate Road, London E12 5EQ | 02085307272 | |
| Sapphire Electronics | 33 Old Pinewood Way, Papworth Everard, Cambridge CB23 3GT | 01223969449 | |
| Sapphire Telecom LTD | Sapphire Telecom Ltd, 18 Russell Place, Fareham, Hampshire PO16 7FH | 01329 284 481 | |
| Saqqara Projects Ltd | The Bakery, Rear of 94, The Street, Wrecclesham, Farnham GU10 4QR | 01252 715400 | |
| Sargasso Networks Ltd | Comtec House, 46a Albert Road North, Reigate RH2 9EL | 0845 034 5020 | |
| Saria Ltd | Ings Road, Doncaster DN59TL | 01302390900 | |
| Saris Group Ltd | 11 Boston Road, Glenrothes KY6 2RE | 01592770751 | |
| Sark Telecom B.V. | Posthoornstraat 17, NL-3011WD, Rotterdam, The Netherlands | +31 10 6690858 | https://www.sarktelecom.com/ |
| SAS Global Communications Ltd | Blackhouse Farm, Blackhouse Road, Colgate, Horsham RH13 6HS | 08455 194 190 | |
| Sasola Ltd | Unit 1 Cutbush Court, Danehill, Lower Earley RG6 4UW | 034 38 866 877 | |
| Satellite and Terrestrial works Ltd | 1b Longbrooke trading estate, bristol BS3 2HW | 03302202121 | |
| Satellite Solutions Worldwide Ltd | 108 Churchill Road, Bicester OX26 4XD | ||
| Savage Minds Ltd | 117 Waterloo Road, London SE1 8UL | 020 3137 1135 | |
| Save Money on Calls.net (UK) Ltd | Unit 2,, Martin Office Village, 1250 Chester Road, Birmingham B35 7AZ | 0870 752 0060 | |
| Save My Quid Ltd | unit 231 - 232, 75, whitechapel Road, London E1 1DU | 02037590551 | |
| Save9 Ltd | Woodend Centre, The Crescent, Scarborough, North Yorkshire YO11 2PW | 01723 817 999 | |
| Savemoneyoncalls.net | https://www.savemoneyoncalls.net/ | ||
| Saver Telecoms Ltd | Freshco Building, 4 Eskdale Road, Uxbridge UB8 2RT | 01895 272 722 | https://www.savertelecoms.co.uk/ |
| Savin Communications Ltd | 8th Floor, The Mile, 1000 Great West Road, Brentford, London TW8 9DW | 02035447777 | |
| Savin Telecom Ltd | The Mille 1000, Great West Road, Brentford TW8 9DW | 020 8232 3500 | |
| Say Hello Telecoms | 7 Bettridge Court, Priors Road, Prestbury GL52 5HL | 07393308302 | |
| Sbs IT Ltd | 17 Station Road, London SE20 7BE | 02033975940 | |
| SBS Networks Ltd | 186 Cheetham Hill Road, Manchester M8 8LW | 01618271600 | |
| SC Technology (UK) Ltd | 43 Stanifield Lane, Farington, Leyland PR25 4QA | 0845 0945 899 | |
| Scancom Distribution Ltd | 18A Meridian Business Park, Meridian East, Leicester LE19 1WZ | 01162200200 | |
| Scatola Electronics Ltd | 1 central terrace, edlington, doncaster DN12 1DH | 01709866366 | |
| SCC Group Telecoms Ltd | 70 Burners Lane, Milton Keynes MK11 3HD | 01908 305062 | |
| Scci Group Ltd | 14 West Place, Harlow CM20 2GY | 07974566714 | |
| Scenic Software Ltd | 2 The Bungalows, Main street, Hirst Courtney, Selby YO88QT | 03333444707 | |
| Sceptre Networking Ltd | 16 Canvin Court, Somerton Business Park, Somerton, Somerset TA11 6SB | 01458 273770 | |
| Scholar Web Services Ltd | 5 Heights,, 5 Warren Edge Road, Bournemouth BH6 4AU | 08455 272992 | |
| Scion Communications | Unit 10, Berkshire Business Centre, Berkshire Drive, Thatcham RG19 4EW | 01189 407200 | |
| S-Communications Ltd | 38 High Street, Misterton, Doncaster DN104BU | 03333350502 | |
| Scot Bb Tel Ltd | 28 Glasgow Road, Perth PH2 0NX | 03333 446484 | |
| Scot Energy 4 U Ltd | 8 mitchell Street, leven, fife, scotland KY8 5LA | 07769665949 | |
| Scotnet | 103 Castle Street, Inverness IV2 3EA | 0845 270 0010 | http://www.scotnet.co.uk/ |
| SCOTNET.CO.UK Ltd | 103 Castle Street, Inverness IV2 3EA | 0845 270 0010 | |
| Scotsphone ICS Ltd | ICS House, Meikle Road, Kirkton Campus, Livingston EH54 7DE | 01506 425 400 | |
| Scott IT Ltd | Sycamore House, 56 Oakfield Road, Clifton, BRISTOL BS8 2BG | 0800 279 1993 | |
| Scottish & Southern Energy | https://www.scottish-southern.co.uk/ | ||
| Scottish Chambers Telecom | http://www.scottishchamberstelecom.co.uk/ | ||
| Scottish Hydro | https://www.hydro.co.uk/ | ||
| ScottishPower PLC | Dalmore House, 310 St Vincent Street, Glasgow, G2 5BB | 0141 567 1234 | https://www.scottishpower.co.uk/ |
| Scrimshaws Information Directories Ltd | 15 Ardbeg Avenue, Rutherglen G73 5NF | 0141 237 3843 | |
| Sprint Ltd | https://www.scsl.co.uk/ | ||
| SCS Network Services Ltd | Unit 6, Honeywood Road Business Park, Honeywood Road, Basildon SS143HW | 08000599100 | |
| SCS Sovereign Communication Systems Ltd | Merlin Way, Bowerhill Industrial Estate, Melksham SN12 6TJ | 01225-700700 | |
| SCSK Europe Ltd | 68 Upper Thames Street, London EC4V 3BJ | 0207 246 3960 | |
| SCT Investments Ltd | SolCom House, 1 Blackburn Road, Rotherham S61 2DW | 0114 242 4141 | |
| Sdc Hosting And Support Ltd | 890 The Crescent, Colchester, Business Park, Colchester CO4 9YQ | 01206239570 | |
| Sdwan Solutions Ltd | 101 Finsbury Pavement, London EC2A 1RS | 02036386680 | |
| SE Networks Ltd | Earlsfield Business Centre, 9 Lydden Road, London SW18 4LT | 020 8875 6868 | |
| Seafish Industry Authority | 18 Logie Mill, Logie Green Road, Edinburgh EH7 4HS | 01472 252325 | |
| Seamless Connectivity Ltd | Suite 210, Peel House, 30 The Downs, Altrincham WA14 2PX | 07779033128 | |
| Seamless Technologies Ltd | Suite 210, Peel House, 30 The Downs, Altrincham WA14 2PX | 01617110411 | |
| Sears Communications Ltd | 22 South Audley Street, Mayfair, London W1K 2NY | 020 7491 7491 | |
| Secaura Solutions Ltd | 17 Strathearn Terrace, Crieff PH7 3AQ | 01738700100 | |
| Secure Communications Ltd | 13a Bassett Court,, Loake Close, Grange Park, Northampton NN4 5DF | 01604950014 | |
| Secure I.T Networks Ltd | Wayland House, High Street, Watton IP25 6AR | 08458387486 | |
| Secure Telecom Ltd | 88 Wild Ridings, Fareham PO15 8DB | 01489 346990 | |
| Secure Web Services Ltd | Brook House, Pennerley, Shrewsbury SY5 0NE | 0333 7000 227 | https://www.securewebservices.co.uk/ |
| Secure365 Ltd | Unit 2 Corinium Industrial Estate, Raans Road, Amersham HP6 6JQ | 01494412640 | |
| SecureDesk Ltd | Unit 10,, Bell Business Park,, Smeaton Close, Aylesbury HP19 8JR | 01296 328448 | |
| SECUREIT (WALES) UK | Abergarow Service Stateion, New Road, Brynnenyn, Bridgend CF32 9LY | 01656 723402 | |
| secureVirtual ltd | 70 Hill Street, Richmond TW9 1TW | 02080991500 | |
| Securus | https://securuscomms.co.uk/ | ||
| Securus Communications Ltd | 6 Twynes Meadow, Hook, Hants RG27 9UG | 08451 283457 | |
| See Green Systems Ltd | Turing House, 2 Marsden Park, Clifton Moor, YORK YO30 4WX | 01904500000 | |
| Seek A Geek Ltd | Unit 1 Greenwood Court, Taylor Business Park, Risley, Warrington WA3 6DD | 03333232744 | |
| seethelight | Driscoll 2, Ellen Street, Cardiff CF10 4BP | 0800 331 7638 | https://www.seethelight.co.uk/ |
| Segero Ltd | Suite B, West Lancashire Investment Centre, White Moss Business Park, Skelmersdale WN8 9TG | 0330 0582720 | |
| Selcom Systems Ltd | Unit 7 Westfield House, Millfield Lane, Nether Poppleton, York YO26 6GA | 01904788181 | |
| Select Business Products Ltd | 65, Castle Street, Hull HU11SD | 01482586550 | |
| Select Equipment Consultants Ltd | Chestnuts, Capel Road, Ashford TN26 2PJ | 0333 577 8001 | |
| Select Technology Systems Ltd | 4 Cannon Park, Transfesa Rd, Paddock Wood, Kent TN12 6UF | 01892830111 | |
| Select Telecom Ltd | Communication House, Brunswick Industrial Est, Brunswick Village, Newcastle Upon Tyne NE13 7BA | 0191 2173960 | |
| Selectelecom Ltd | Ellismuir House, Ellismuir Way, Tannochside Business Park, Glasgow G71 5PW | 0845 223 0431 | |
| Selective Networks Ltd | Prince William House, 3 Clifton Villas, Bradford BD8 7BY | 0330 100 2500 | https://www.selectivenetworks.co.uk/ |
| Selex Communications Ltd | Lucena House, Shaw Village Centre, Ramleaze Drive, Swindon SN5 5PY | 01793 879600 | http://selexcommunications.com/ |
| Selling Situations Ltd | Your First Contact, E-Volve Business Centre, Cygnet Way, Tyne & Wear DH4 5QY | 0845 872 8888 | |
| Sematron UK | https://www.sematron.com/ | ||
| Semtec Ltd | 18 Chapel Street, Petersfield, Hampshire GU32 3DZ | 0870 7377700 | |
| SEMTEC T/A SAQ | https://www.saq.net/ | ||
| Senate House Service Ltd | Senate House, Malet Street, London WC1E 7HU | 020 7863 1300 | |
| Senior Internet Ltd | 137 Canal Street, Nottingham NG1 7HD | 01159500101 | |
| Sensata Ltd | Ground Floor, Unit 4, Coped Hall Business Park, Royal Wotton Bassett, Wiltshire SN4 8DP | 01793 250030 | |
| Sensibill Ltd | Caspian House, Timothy's Bridge Road, Statford-Upon-Avon CV37 9NR | 0845 2415514 | https://www.sensibill.com/ |
| Sensible Computing Solutions Ltd | Unit 5 Firtree Lane, Groby, Leicester LE6 0FH | 01162871441 | |
| Sensical Services Ltd | International House, 24 Holborn Viaduct, London EC1A 2BN | 0844 686 6622 | |
| Sentinel Care Ltd | Cornerstone House, Stafford Park 13, Telford TF3 3AZ | 08451298157 | |
| Sentiro Ltd | 6 Cole Park View, St Margarets, Twickenham TW1 1JW | 020 8607 8530 | https://www.sentiro.com/ |
| SEO Moves Ltd | SOUTHGATE BUSINESS CENTRE, 32 GILLYGATE, PONTEFRACT WF8 1PQ | 01977264343 | |
| Sepura | http://www.sepura.co.uk/ | ||
| Serano Communications Ltd | |||
| Seren Internet Ltd | Green Briars, Newick BN8 4HT | 0845 500 6566 | https://sereninternet.com/ |
| Serez Ltd | |||
| Serif Systems Ltd | Serif Systems Limited, Suite 2 Peel Mill, Commercial Street, Morley LS27 8AG | 0113 238 1590 | |
| Serious Communications Ltd | Dalton House, 60 Windsor Avenue, London SW19 2RR | 0845 1253510 | |
| Seriun Communications Ltd | Unit 5 Dominion Court, Billington Road, Burnley BB11 5UB | 01282 583 053 | |
| Sermo Group Ltd | 90 Brockhurst Road, Birmingham B36 8JD | 0121 667 4707 | |
| Sermo Telecom Ltd | Knoll House, Knoll Road, Camberley, Surrey GU15 3SY | 0845 4507950 | |
| Servatech Ltd | Chapelthorpe Hall, Church Lane, Chapelthorpe, Wakefield WF4 3JB | 01924 562 100 | |
| Servcomp | Greenway, Woodcote Road, Epsom KT18 7QS | 01372 724774 | |
| Servcorp UK Ltd | Level 17 Dashwood House, 69 Old Broad Street, London EC2M 1QS | 02072564000 | |
| Served Up Ltd | 3 Centro, Boundary Way, Hemel Hempstead HP2 7SU | 020 3030 3000 | https://www.servedup.co.uk |
| Serveline IT Ltd | 112 High Street, Kinver DY7 6HL | 01384 429 120 | |
| ServerChoice Ltd | Unit H-K Gateway 1000, Whittle Way, Arlington Business Park, Stevenage SG1 2FP | 01438 532 300 | |
| Serverhouse Ltd | 2 Delme Place, Cams Estate, Fareham PO16 8UX | 01329800911 | |
| Service Direct Ltd | Advance House, North Circular Road, London NW10 7SH | 0208 961 7000 | |
| Service Direct (UK) Plc | |||
| Service Direct Newco Ltd | County Hall, Durham DH1 5UL | 07946312685 | |
| Service F1rst Ltd | PO Box 791, Over, Cambridgeshire CB4 5WW | 0845 4033 685 | |
| Service My Pc Ltd | Vibrant Telecom, Grove House, Grove Terrace, Walsall, West Midlands WS1 2NE | 01922 612387 | |
| Service Telecom Ltd | Orient House, Newton Street, Hyde SK14 4RY | 0161 351 4800 | |
| Serviced Cloud Ltd | 40 Beaufort Court, Admirals Way, London E14 9XL | 02070936020 | |
| Serviced Office Provisioning Ltd | 7-9, Spring Street Place, Bedminster, Bristol BS34AF | 01179717722 | |
| Serviceteam IT Ltd | 49 Frederick Road, Edgbaston, Birmingham B15 1HN | 01214680101 | |
| Servitus Ltd | Manor House Enterprise Centre, High Street, Royal Wootton Basset SN5 7AU | 01793851589 | |
| SES Computers | Banbury House, 5 Market Street, Weymouth, Dorset DT4 8DD | 01305 774402 | |
| SES Telecom | 167 Lymington Road, Christchurch, Dorset BH23 4JS | 0870 758 1100 | |
| Sesui Ltd | Magdalen Centre, The Oxford Science Park Oxford OX4 4GA | 034 4560 0600 | https://www.sesui.com/ |
| Set To It Ltd | 8 Laverockbank Grove, Edinburgh EH5 3DD | 0333 3583736 | |
| Setel | Tower House, 226 Cromwell Road, London SW5 0SW | 08700 330270 | https://www.setel.co.uk/ |
| Setera UK Ltd | 2 Meadrow, Godalming GU7 3HN | 01483 926000 | https://www.setera.com/ |
| Seven Internet Ltd | 35 Blanquettes Ave, Worcester WR38DA | 01905745339 | |
| Sevenoaks Mobile Phone Centre | 95 High Street, Sevenoaks, Kent TN13 1LH | 01732741460 | |
| Severnserve Ltd | Network House, Stafford Park 17, Telford TF3 3DG | 01952 898194 | |
| SFL Mobile Radio | https://www.sflmobileradio.co.uk/ | ||
| Shackleton Technologies (Holdings) Ltd | Unit 4, Delta House, Gemini Crescent, Dundee DD2 1SW | 01382250900 | |
| Shadowfax Technology Ltd | Unit 5a, Chelmsford Road Industrial Estate, Great Dunmow, Essex CM6 1HD | 03332 400660 | |
| Shaftesbury Systems Ltd | 11th Floor, Maple House, High Street, Potters Bar EN6 5BA | 0870 787 8586 | |
| Shaftesbury Systems t/a ebillz | https://www.ebillz.com/ | ||
| Shape Networks Ltd | Unit 3, Carlson Court, 116 Putney Bridge Road, London SW15 2NQ | 020 7015 2100 | http://www.shapenetworks.com/ |
| Shard Tech Ltd | 2 Freyberg Drive, Aylesbury HP18 0HR | 01494783220 | |
| Shared Communications | Stafford House, Blackbrook Park Avenue, Taunton, TA1 2PX | ||
| SharePoint Assist Ltd | 3 Tivoli Walk, Prinbox Works, Cheltenham GL50 2UX | 01242236999 | |
| Sharman Developments Ltd | The Warren, 4 Manor Grange, Tingley, Wakefield WF3 1FP | 01132520030 | |
| Sharpe Systems Ltd | Retford Enterprise Centre,, Randall Way, Retford DN22 7GR | 01777 279707 | |
| Sharps Brewery Ltd | Pityme Business Centre, Rock PL27 6NU | 01208862121 | |
| Shaun Okeefe Ltd | 25 Avonmouth Drv, Derby DE24 8UL | 07966547882 | |
| SHBS Ltd | 268 Leicester Road, Wigston LE18 1HQ | 0116 2813891 | |
| Sheffield Business Systems Ltd | Hellaby Business Centre, Bramley Way, Rotherham S66 8QB | 01709 533 159 | |
| Shell Energy Retail Ltd | Shell Energy House, Westwood Business Park, Westwood Way, Coventry CV4 8HS | 0330 094 5800 | https://www.shellenergy.co.uk/ |
| Shenstone Business Systems Ltd | 36 Schoolfields Road, Shenstone, Lichfield, Staffordshire WS14 0LL | 01543 482 064 | |
| Sherwood Data Systems Ltd | Farrendale House, Darwin Drive, Newark NG22 9GW | 01623275040 | |
| Sherwood Solutions Ltd | |||
| Shetland Broadband Llp | 4 Market Street, Lerwick, Shetland ZE1 0JN | 01595 696 297 | http://www.shetlandbroadband.co.uk/ |
| Shezzacoms Ltd | 186 Old Road, Clacton On Sea CO15 3LR | 01255711011 | |
| Shift F7 Ltd | Vine Court, Chalkpit Lane, Dorking, Dorking RH4 1AJ | 01306 873900 | |
| Shiloh Marketing Services LTd | Kings House, Wolverhampton WV24DT | 01746240000 | |
| Shine Networks Ltd | Unit 5 Rotherbrook Court, Bedford Road, Petersfield GU32 3QG | 01730236068 | |
| Shine Systems Ltd | Unit 2, 5 Knights Close, Thurmaston, Leicester LE4 8EW | 01162230033 | |
| Shine Telecom Ltd | 127/129 Portland Street, Manchester M1 4PZ | 0845 4566990 | |
| Purple Tree Solutions Ltd | 78 St Catherine Street, Kingsholm, Gloucester GL1 2BX | 01452550714 | |
| Shire Computer Services Ltd | 66 Dorchester Road, Solihull, West Midlands B91 1LJ | 0845 3309 463 | |
| Shireglobe Computers Ltd | Creative Mwldan, Bathhouse rd, Cardigan SA431JD | 0123962241 | |
| Shirley Computer Services Ltd | 25 Spring Lane, Woodside, London SE25 4SP | 020 8655 1696 | |
| Shiva Technology Ltd | 1 Edison Buildings, Electric Wharf, Coventry CV1 4JA | 0845 180 1040 | |
| Shop4-IT | Westonhall Road, Stoke Prior, Bromsgrove, Worcs B60 4AL | 0845 094 0121 | |
| Shore Communications Ltd | 42B Banstead Road, Carshalton Beeches, Surrey SM5 3NW | 020 8661 6800 | https://www.shorecomms.co.uk/ |
| ShoreTel UK Ltd | Inspired, Easthampstead Road, Bracknell, Berks RG12 1YQ | 01344 208800 | https://www.shoretel.com/ |
| Shropshire ITC Ltd | Unit 4 Sweetlake Court, Mercian Close, Shrewsbury, Shropshire SY3 9GE | 0845 617 1440 | |
| Shuffle Innovations Ltd | Unit 160, 2 London Bridge Walk, London SE1 2SX | 0800 009 6175 | |
| Siarad Network Ltd | 130 St Telio Street, Pontarddulais, Swansea SA4 8RE | 01792 885999 | |
| Siebert Industries Ltd | Blackfaulds House, Drumhead Place, Cambuslang Investment Park, Cambuslang, Glasgow G32 8EY | 0870 050 2266 | |
| Siemens Communications Ltd | Turnells Mill Lane, Wellingborough, Northamptonshire NN8 2RB | 01933 444 363 | |
| Sigma Consulting Services Ltd | Temperance House, Langdon Lane, Radway, Warwickshire CV35 0UQ | 01256 808 084 | |
| Sigma Telecom Ltd | 29 Gay Street, Bath BA1 2NT | 01225 444464 | |
| Sigma Utilities Holdings Ltd | Heritage Exchange, Wellington Mills,, 64 Plover Road, Huddersfield HD3 3HR | 07727085621 | |
| Sigma Voice Solutions | The Post House, Kitsmead Lane, Longcross, Chertsey, Surrey KT16 0EG | 0844 770 0075 | |
| Sigma42 Ltd | Adamson House, Towers Business Park, Wilmslow Road, Manchester M20 2YY | 0844 880 4888 | |
| Signa Technologies Ltd | Crown Chambers, Princes Street, Harrogate HG1 1NJ | 01423 900433 | |
| Signal Networks Ltd | 8 Middle Bridge Business Park, Bristol Road, Portishead BS20 6PN | 03333702202 | |
| Signals | https://www.signalsgb.com/ | ||
| Signature Network Solutions Ltd | Kemp House, 152 ? 160 City Road, London EC1V 2NX | 01442818244 | |
| Signum Corporate Communications Ltd | Consort House, 15 De Montfort Place, Leicester LE1 7GZ | 0844 251 0521 | |
| Silicon Bullet Ltd | 54 Forest Road, Hartwell, Northampton NN7 2HE | 01604 420 057 | |
| Silver Cloud Data Solutions Ltd | 26 Arcadian Gardens, Benfleet SS7 2RP | 08453886337 | |
| Silver Cloud Telecom Ltd | 10 Fitzroy Place, Glasgow G3 7RW | 0141 552 0000 | |
| Silver Lining Convergence Ltd | Silver Lining Convergence Limited, Unit 20, Regent Trade Park, Barwell Road PO13 0EQ | 07789 625907 | https://www.silver-lining.com/ |
| Silverbug Ltd | Linford Pavilion, Sunrise Parkway, Linford Wood, Milton Keynes MK14 6LS | 08453048888 | |
| Silverdale Resource Ltd | 1 Railway Station Cottages, Edale, Hope Valley S337ZP | 01433445077 | |
| Silverlined Ltd | Vaillant House, Rochester ME2 4EZ | 01580230670 | |
| Simetric Telecom Ltd | 1 Gemini Business Park, Sheepscar Way, Leeds LS7 3JB | 0113 397 1100 | https://www.simetrictelecom.com/ |
| Simico (Uk) Ltd | Westpoint, 4 Redheughs Rigg, South Gyle, Edinburgh EH12 9DQ | 07831445566 | |
| Simoco Wireless Solutions Ltd | Field House, Uttoxeter Old Road, Derby DE1 1NH | 01332 375500 | https://www.simocowirelesssolutions.com/ |
| Simon Foden | Omnia One, 125 Queen Street, Sheffield S1 2DU | 0121 711 4411 | |
| simon jackson | 128 Church Street, Dukinfield SK164LU | 07833634984 | |
| SIMON P ANDREE | 140 High Road, Broxbourne EN10 7DQ | 01992352233 | |
| Simon Reynolds | 5 whitworth close, moira, swadlincote DE12 6BG | 07976920550 | |
| Simon Says Marketing | 3 Dean Court, North Wembley HA0 3PU | 020 84323298 | |
| Simpatico Communications Ltd | 2 Norwood Grove, Beverley HU17 9HS | 01482935955 | |
| Simple Call Ltd | 5 Greenwich View Place, London E14 9NN | 02035700700 | |
| Simple Mobile Ltd | wings, sedge green, roydon CM195JR | 07917682828 | |
| Simple Solutions 360 Ltd | 33 Bohemia, Hemel Hempstead HP2 5RN | 02033222823 | |
| Simple Telecommunications Ltd | Flat 3, 1 Russell Hill Place, Purley CR8 2LT | 03306060808 | |
| SimpleCall | 4-6 Davenant Street, Unit A, London E1 5NB | 020 7870 3480 | https://www.simplecall.com/ |
| Simplecall Business Ltd | City Reach 7th Floor, 5 Greenwich View Place, Millharbour, London E14 9NN | 020 3540 6302 | |
| Simplelight Ltd | Gateway House, Gateway West, Newburn Riverside, Newcastle Upon Tyne NE15 8NX | 03300415425 | |
| Simpler Broadband | 80a St James Road, Surbiton SURREY | 02037307165 | |
| Simplex Solutions Ltd | Ferranti Court, Staffordshire Technology Park, Stafford ST18 0LQ | 01785 248 121 | |
| Simplicity Communications Ltd | Kings House, Station Road, Kings Langley, Hertfordshire HP1 3DP | 0844 669 1276 | https://www.simplicitygroup.co.uk/ |
| Simplify Communications Ltd | 56 Gidlow Lane, Wigan WN67DP | 07813616647 | |
| Simplify VoIP Ltd | 38 Southbridge Road, Croydon CR0 1AE | 020 3814 0777 | |
| Simply Broadband Ltd | 65 Allens Road, Poole, Dorset BH16 5BX | 01202 233 945 | |
| Simply Ip Ltd | 158 Courthill House, Water Lane, Wilmslow, Cheshire SK9 5AJ | 01565 633521 | |
| Simply Lines Ltd | Unit 7 Westerham Trade Centre, The Flyers Way, Westerham, Kent TM16 1DE | 02081509554 | |
| Simply Mobile (NI) Ltd | 3 Balloo Court, Bangor BT19 7AT | 02891404040 | |
| Simply Mobile Solutions | Polysec House, Blackpole Trading Estate West, Worcester WR3 8TJ | 01905 613 828 | |
| Simply Net | 212 Oakworth Road, Keighley BD21 1QX | 01535523347 | |
| Simply Networks Ltd | 142 Buckingham Palace Road, London SW1W 9TR | 02071833300 | |
| Simply Solve IT Ltd | 29 Chorley New Road, Bolton, Greater Manchester BL6 5TA | 01204322062 | |
| Simply-Fone Ltd | PO Box 20338, London NW11 9ZW | 0844 545 9876 | https://www.simplyfone.com/ |
| Simpology UK Ltd | 6 Main Street, Wardy Hill, Ely CB6 2DF | 01353 778 282 | |
| Simtech-IT Ltd | The Chandos Suite, Pengethley Manor, Hereford HR9 6LL | 0845 5441 589 | |
| Simulant Systems Ltd | Popeshead Court Offices, Peter Lane, York YO1 8SU | 08712663676 | |
| Simwood eSMS Ltd | Simwood House, Cube M4 Business Park, Old Gloucester Road, Bristol BS16 1FX | 033 0122 3000 | https://www.simwood.com/ |
| Sinclair Technologies | https://www.sinctech.com/ | ||
| Single Source ICT Ltd | 85 Great Portland Street, London W1W 7LT | 02081239290 | |
| Singlerapid Ltd | 46 High Street, Egham, Surrey TW20 9EP | 01784 477578 | |
| SingTel (Europe) Ltd | Birchin Court, 20 Birchin Lane, London EC3V 9DU | 020 7122 8000 | https://www.singtel.com/ |
| Sinorrah IT Solutions Ltd | 3 Forge House, Summerleys Road, Princes Risborough, Bucks HP27 9DT | 01844 345 999 | |
| SIP Communications PLC | 33 io Centre, Armstrong Road, London SE18 6RS | 0870 053 7000 | |
| SiPalto Ltd | Studio 7, Excel Building, 6-16 Arbutus Street, London E8 4DT | 020 7148 7525 | https://www.sipalto.com/ |
| Sipcentric Ltd | Faraday Wharf, Innovation Birmingham Campus, Holt Street, Birmingham Science Park Aston, Birmingham B7 4BB | 0121 285 4400 | https://www.nimvelo.com/ |
| Sipgate GmbH | Gladbacher Strasse 74, D-40219 Dusseldorf, Germany | https://www.sipgate.co.uk/ | |
| Siphon | https://www.siphonnetworks.com/ | ||
| SipliciTalk (UK) Ltd | The Old Bakery, 11a Canford Lane, Westbury On Trym, Bristol BS9 3DE | 0117 971 7722 | |
| Siplicity Group Ltd | 28a Park Road, Fowey, Cornwall PL23 1ED | 0117 971 7722 | https://www.siplicitygroup.co.uk/ |
| Siplicutility Ltd | 28a Park Road, Fowey, Cornwall PL23 1ED | 01179717722 | |
| SIPSTAR | 1, beech avenue, plean, stirling FK78DR | 07470389842 | |
| Sipsynergy Ltd | Wessex House, Upper Market Street, Eastleigh SO50 9FD | 02033559680 | |
| SIPsys Ltd | Charwell House, Wilsom Road, Alton, Hampshire GU34 2PP | 0845 0045059 | |
| Siptel Net Ltd | Surrey Research Park, 40 Occam Road, Guildford, SURREY GU2 7YG | 0870 871 1400 | |
| Sipwhale Ltd | 185 Shakespeare Crescent, London E12 6NA | 020 3422 2000 | https://www.sipwhale.com/ |
| Sirius Telecom Ltd | 12 Harvey Close, Crowther Ind Est, Washington NE38 0AB | 01914198181 | https://www.siriustelecom.uk/ |
| Sirocom Ltd | St. Georges Business Park, Weybridge, Surrey KT13 0TS | 01932 264 700 | |
| Sirus Ltd | 27b Hursley Road, Chandlers Ford, Eastleigh, Hampshire SO53 2FS | 02380 258900 | |
| SITA Information Networking Computing UK Ltd | 252-254 Blyth Road, Hayes UB3 1HA | 02087568140 | |
| Sitel Ltd | The Coach House, Berden, Bishops Stortford CM23 1AB | 0844 8006202 | |
| Sitelink Communications Ltd | 18 Bridgewater Road, Hertburn Industrial Estate, Washington, Tyne and Wear NE37 2SG | 0191 418 0110 | |
| Sitesculpt Ltd | 16 Vian Ave, Eastbourne BN23 6EU | 01323400065 | |
| Sitewatch Fire & Surveillance Ltd | Victoria Road, Halesowen B62 8HY | 0871 2232008 | |
| Six Degrees Technology Group Ltd | Commodity Quay, St. Katharine Docks, London E1W 1AZ | 0800 012 8060 | https://www.6dg.co.uk/ |
| Six Degrees Unified Comms Ltd | Commodity Quay, St. Katharine Docks, London E1W 1AZ | 0800 012 8060 | https://www.6dg.co.uk/ |
| SIX Payment Services UK Ltd | 70 London Road, Twickenham TW13QS | 08456029766 | |
| Sjd Consultancy Ltd | Room 215, B1 Business Centre, 1 Empire Way, Burnley BB12 6HA | 01282546172 | |
| SJW Electrical Services | 23 Six Acres, Radbrook Green, Shrewsbury SY3 6AF | 0845 467 4224 | |
| SKD 15 Ltd | 33 King William Street, London EC4R 9AS | 0800 0128 060 | |
| SKD 4 Ltd | Commodity Quay, St Katharine Docks, London E1W 1AZ | 0800 012 8060 | https://www.6dg.co.uk/ |
| SKD 5 Ltd | |||
| Skills for Care Ltd | West Gate, 6 Grace Street, LEEDS LS1 2RP | 01132 451 716 | |
| Skunkworks Managed IT Services Ltd | 3 Roundhouse Park, Lightmoor Village, Horsehay, Telford TF4 3BF | 07378767876 | |
| Sky Cloud London Ltd | 222 noak hill road, billericay, essex CM129UX | 08082211000 | |
| Sky Communications | 29 Wellington Street, 4th Floor, Leeds LS1 4DL | 0333 7594833 | https://b2b.sky.com/ |
| Sky Home Communications Ltd | Grant Way, Isleworth, Middx TW7 5QD | https://www.sky.com/skytalk | |
| Sky Subscribers Services Ltd | PO Box 43, Livingston, West Lothian EH54 7DD | 0844 241 0499 | https://www.sky.com/skytalk |
| Sky Teledata Ltd | Rugby Chambers, 2 Rugby Street, Holborn, London WC1N 3QU | 020 7096 6367 | |
| Sky UK Ltd | Grant Way, Isleworth, Middx TW7 5QD | 033 3100 0333 | https://www.sky.com/ |
| Skygrace Ltd | 4 Dales Park Drive, Manchester M27 0FP | 01616608598 | |
| Skyline Telecommunications Ltd | 6th and 7th Floor, 120 Bark Street, Bolton BL1 2AX | 07843385477 | |
| Skyline Wireless Ltd | Unit 5, Spring Rise, Falconer Road, Haverhill CB9 7XU | 0800 304 7544 | |
| Skymaker Ltd | Global House, 2 Crofton Close, Lincoln LN3 4NT | 0844 443 4433 | https://www.gcicom.net/ |
| Skynet | 1 Adams House, Northampton Science Park, Moulton Park Industrial Estate, Northampton NN3 6LG | 0844 745 1300 | https://www.skynet.co.uk/ |
| Skynet Infinity Ltd | Unit 8, Willows Gate, Stratton Audley, Bicetser OX27 9AU | 0203 8148879 | |
| Skype Communications SA | PO Box 75538, Luxembourg 1070 AM, Luxembourg | https://www.skype.com/en/ | |
| Skypower Telecom Ltd | 15, 181 Great Clowes, Salford, Lancashire, Manchester M7 1ZL | ||
| Skywave Communications Ltd | 7 Church Road, Claverdon CV358PB | 01926768010 | |
| SL Telecom Ltd | Hornbeam Way, Wimbourne, Dorset BH21 2QE | 01202 888 930 | |
| Sleek Networks Ltd | Unit 4, Angel Court Burley Road Leeds LS3 1BS | 0845 638 1805 | https://www.datapipe.com/adapt |
| SLM Connect Ltd | SLM CONNECT LTD ONE CENTRAL PARK NORTHAMPTON ROA, MANCHESTER M40 5BP | 0161 9186752 | |
| SLM Mobile | https://www.slmmobile.com/ | ||
| Sloane Curtis Solutions Ltd | Unit 2, Marquis Business Centre, Royston Road, Baldock SG7 6XL | 07956216400 | |
| Smarf Ltd | 85 GREAT PORTLAND STREET, LONDON W1W 7LT | 02036331143 | |
| Smart Cloud Ltd | Suite 114 Imperial Court, Exchange Street East, Liverpool L2 3AB | 01513808180 | |
| Smart Communications Group Ltd | CARLETON HOUSE 266-268 STRATFORD ROAD, Solihull B90 3AD | 01213660068 | |
| Smart Computers Ltd | 22 Enterprise Way, Cheltenham GL51 8LZ | 01242 580654 | |
| Smart Connect Ltd | Athena House, 612 - 616 Wimbourne Road, Bournemouth, Dorset BH9 2EN | 01202 519 800 | |
| Smart Connect Telecom | 398-400 Holdenhurst Road, Bournemouth BH8 8BN | 0800 038 5005 | |
| Smart Connection Co Ltd | Farrington Road, Burnley BB11 5FH | 01282 463 102 | |
| Smart Energy Brokers Plus Ltd | Airedale House, 423 Kirkstall Road, Leeds LS4 2EW | 01133350178 | |
| Smart IPX Ltd | 13 Selsdon Way, London E14 9GL | 020 7001 6718 | |
| Smart IT Support Ltd | 320J Mayoral Way, Team Valley Trading Estate, Gateshead NE11 0RT | 0845 463 1982 | |
| Smart Numbers Ltd | 20-22 Richfield Avenue, Reading RG1 8EQ | 08450 178 179 | https://www.smart-numbers.net/ |
| Smart Office Technology Ltd | H26 The Avenues, Team Valley, Gateshead NE11 0NJ | 03302233525 | |
| Smart Sense | 8 Wrens Park Avenue, Walmley, Sutton Coldfield B76 1LP | 0121 285 2857 | |
| Smart Services | 10 Thornleigh Park, Ballymoney BT53 7BX | 02827698225 | |
| Smart Solutions Grp Ltd | Solutions House, Unit 7 Forder Way, Hampton, Peterborough PE78GX | 03303800900 | |
| Smart -Telecom LTD | 3-5 Rickmansworth Road,, 1st Floor AGF House,, Watford WD18 0GX | 03333449779 | |
| Smart Telecom GB Ltd | Cleveland, Grove Lane, Chalfont St Peter, Bucks SL9 9LN | 01494 303 404 | |
| Smart Voice & Data Ltd | Unit 3, Hillhouse Workshops,, 37 Argyle Crescent, Hamilton ML3 9BQ | 01412126229 | |
| SmartCall Direct Ltd | (Dissolved Janiary 2010) | ||
| Smartech UK Plc | 25 City Road, London EC1Y 1AA | 020 7689 5678 | |
| Smartinfo | 49-59 Old Street, London EC1V 9MX | 0870 750 0848 | https://www.smartinfosystems.co.uk/ |
| Smartpay Merchant Services Ltd | Colmore Plaza, 20 Colmore Circus, Queensway, Birmingham B4 6AT | 03302233017 | |
| Smartplay Group Ltd | Building 3, Chiswick Park, 566 Chiswick High Road, London W4 5YA | 020 8133 3998 | |
| Smartvoice Ltd | 63-66 Hatton Garden, London EC1N 8LE | ||
| Smartx7 Ltd | Unit 2B, LMC Business Wing, 38-44 Whitechapel Road, LONDON E1 1JX | 0207 993 8804 | |
| Smarty | https://www.smarty.co.uk/ | ||
| Smashbox Marketing Ltd | 187A Field End Road, Eastcotte, Pinner, Middx HA5 1QR | ||
| SMB Network Solutions Ltd | 23 Primrose Way, Corfe Mullen, Wimborne, Dorset BH21 3NT | 01202 601776 | |
| SMC Design Ltd | Unit 10 Blue Lion Plce, 237 Long Lane, London SE14PU | 02073781468 | |
| Sme IT (Uk) Ltd | 49 Edison Avenue, Hornchurch RM12 4DZ | 01708 547000 | |
| SME IT Solutions Ltd | Units 1-3, 85b Ashford Road, Eastbourne BN21 3TE | 01323 648666 | |
| SMH Company (UK) Ltd | PO Box 400, Darlington, Co. Durham | 01325 363467 | |
| Smile Telecoms Ltd | June Almond House, Mary Street, Manchester M3 1DZ | 0161 834 3316 | |
| Smiley Network Ltd | 37, Flint Close, LUTON LU3 3LX | 01582585815 | |
| Smith Cooper IT Services Ltd | St Helens House, King Street, Derby DE1 3EE | 01332374444 | |
| SMS Computer Solutions | 2 Brandhall Road, Oldbury, West Midlands, Birmingham B68 9DP | 0121 285 0098 | |
| SMS Telecom Solutions Ltd | 29 Westfield close, Kingsbury, London NW9 0LU | 02082056337 | |
| SMT Technologies Ltd | Great Lime Road, Newcastle Upon Tyne NE12 6RU | 01912685999 | |
| Smye-Rumsby | https://www.smye-rumsby.co.uk/ | ||
| Snap. Group (It) Ltd | Richlyn House, Cedar Road, Hethersett, Norwich NR9 3JY | 01603980260 | |
| Snappy Pay Ltd | 20 - 22 Wenlock road, London N1 7GU | 01329 595890 | |
| Sns IT Ltd | 81 St Raphaels Way, London NW10 0NU | 078 056 998 | |
| SOC Communications Ltd | Clapham House, 48 Seaside, Eastbourne BN22 7QL | 01323400500 | |
| Social Telecoms CIC | Unit 15 Harlescott Barns, Harlescott Lane, Shrewsbury SY1 3SZ | 01743 730 100 | |
| Socom Networks | 18 Avon Close, Marple, Cheshire SK6 63Q | 0844 800 4172 | |
| EBS Europe Ltd | Enterprise House Galabank Business Park, Galashiels TD1 1PR | 0333 240 1824 | |
| Soft Sell Group Ltd | 74 Darwen Street, Blackburn, Lancashire BB2 2BL | 01254 693593 | |
| Softcat Ltd | Solar House, Fieldhouse Lane, Marlow SL7 1LW | 01628 403 403 | |
| Softcraft Computer Services Ltd | Norwich House, Church Plain, Worstead, Norwich NR28 9AL | 01692535355 | |
| Softlink Computer Systems Ltd | Three Gables, Gaineys Well, Stroud GL5 1LQ | 01453765927 | https://www.softlinkcomputers.co.uk/ |
| Software Automation Services UK Ltd | 22 Bolton Close, Isleport Business Park, Highbridge, Somerset TA9 4JR | 0844 264 0844 | |
| Soft-Works Technologies Ltd | Addlepool Business Centre, Clyst St George, Exeter, Devon EX3 0NR | 0845 838 0835 | |
| SOHO66 | https://www.soho66.co.uk/ | ||
| Solar Communications Ltd | 33 Portland Square, Bristol BS2 8RG | 0117 901 6000 | https://www.solar.co.uk/ |
| Solar Communications Group Ltd | Rowan House, Seldon Business Park, Chippenham, Wiltshire SN14 0SQ | 0845 0730001 | |
| Solent Computer and Internet Services Ltd | 247b Francis Avenue, Southsea PO40AL | 02392799288 | |
| Solent IT Ltd | 82 Basepoint Enterprise Center, Andersons Road, Southampton SO14 5FE | 023 8024 9820 | |
| Solid State Computing Ltd | 822 Attercliffe Road, Sheffield S9 3RS | 01142216569 | |
| Solid Systems Computer Services Ltd | Ajit House, Prime Enterprise House, Prime Parkway, Derby DE1 3QB | 08700 772 726 | |
| Solis | Canal Street, Sheffield S4 7ZE | 0114 258 5550 | |
| Solsoft Group | Jacobs Building, Berkeley Place, Clifton, Bristol BS8 1EH | 0845 073 0930 | |
| Solsoft Technology Ltd | Jacobs Building, Berkeley Place, Clifton, Bristol BS8 1EH | 0845 073 0930 | |
| Solution Cloud Ltd | Solution Cloud Ltd, 86-90 Paul Street, London, London EC2A 4NE | 08002229002 | |
| Solution Consultants ICT Ltd | Woodberry Cottage Green Lane Pangbroune Berkshire RG8 8LD | 0871 222 2133 | http://www.solutionconsultants.co.uk/ |
| Solution Consultants ICT Ltd | Woodberry, Green Lane, Pangbroune, Berkshire RG8 8LD | 0845 337 3838 | |
| Solution IP Communications Ltd | 3, Basement Flat, Buckingham Place, Clifton, Bristol BS8 1LH | 0871 222 9422 | https://www.solutionip.co.uk/ |
| Solution Support Ltd | Grayson House, Lynn Lane, Shenstone, Lichfield WS14 0DU | 01543481133 | |
| SCT Investments Ltd | 121 Matilda Street, Sheffield S1 4QG | 0844 371 1234 | |
| MDNX Managed Services Ltd | Sugarbond 2 Anderson Place, Edinburgh EH6 5NP | 0870 9061111 | |
| SolutionFire Ltd | 64 Grovelands Park, Winnersh RG41 5DJ | 01183341014 | |
| Solutions 4 IT Ltd | Forge House, Mucklow Hill, Halesowen B62 8DN | 01384 413434 | |
| Solutions Aberdeen Ltd | 56-58 Bridge Street, Aberdeen AB11 6JN | 01224 213033 | |
| Solutions Builders Ltd | SBL House, Hulfords Lane, Hartley Wintney, Hampshire RG27 8AG | 03333 209123 | |
| Solutions In Technology | https://www.sitgroup.co.uk/ | ||
| Solutions in Technology (IT) Ltd | 11 & 12 Springvale Industrial Estate, Cwmbran, Cwmbran, Gwent NP44 5AZ | 01633 487 000 | |
| Solutions Inc Ltd | The Joinery, 255 Old Shoreham Road, Brighton & Hove, East Sussex BN3 7ED | 01273 200777 | |
| Solutios Ltd | 38 Skyline Court, Grange Yard, London SE1 3AN | 020 7167 5555 | https://www.solutios.com/ |
| Solved IT (UK) Ltd | Station House, Stamford New Road, ALTRINCHAM WA14 1EP | 01619242348 | |
| Solv-IT Services Ltd | 3 Thurnham Way, Tadworth SURREY | 07427012736 | |
| Sona IT Ltd | Unit 6/15 Premier House, 112 Station Road, Edgware, London HA8 7BJ | 020 8952 2495 | |
| Sonning I.T. Services | Sonning House, Goosnargh Lane, Goosnargh, Preston PR3 2BN | 01772861618 | |
| Sort-IT Biz Ltd | Bewsters Corner, Pendicke Street, Southam, Warwickshire CV47 1PN | 0845 890 0980 | |
| Sortmypc Ltd | 302 Colinton Road, Edinburgh EH13 0LE | 0131 477 2644 | |
| SOS Can Do Communications Ltd | 356A Dukesway Court, Team Valley Trading Estate, Gateshead NE11 0BH | 0345 230 8787 | |
| SoS Consultancy Ltd | 176 Marldon Road, Paignton, Devon TQ3 3ND | 0845 6434878 | |
| Sota Solutions Ltd | 300 Cornforth Drive, Kent Science Park, Sittingbourne, Kent ME9 9PX | 0845 456 7575 | |
| Sotech Communications Ltd | Bridge Road, Bursledon, Southampton SO31 8AH | 07899 870 777 | |
| Source Telecom (Scotland) Ltd | 45 Vicar Street, Falkirk FK1 1LL | 01324 469146 | |
| Sourcecube Ltd | 52 Chiltern Crescent, Fair Oak, Eastleigh SO50 7GJ | 07876560556 | |
| South Cheshire Ltd - | 6 High Street, Nantwich, Cheshire CW5 5AR | 01270 627496 | |
| South East Business Systems Ltd | 2-8 Sussex Road, Haywards Heath RH16 4EA | 01444416641 | |
| South Tyneside Council | Town Hall & Civic Offices, South Shields, Tyne and Wear NE33 2RL | 0191 427 1717 | |
| South West Communications Group Ltd | Communications House, Moor Lane, Sowton, Exeter EX2 7JA | 01392 369369 | https://www.swcomms.co.uk/ |
| South West Data Networks Ltd | Unit 104 City Business Park, Somerset Place, Plymouth PL3 4BB | 01752 606 555 | |
| South West Grid For Learning Trust | Belvedere House, Woodwater Park, Pynes Hill, Exeter EX2 5WS | 0845 601 3203 | |
| South West Internet CiC | https://www.wdi.co.uk/ | ||
| South West IT Ltd | Office 4, Unit C, Oxford Court, Granby Industrial Estate, Weymouth DT4 9GH | 01305500118 | |
| Southbank IT Solutions Ltd | Europoint, 5-11 Lavington Street, London SE10NZ | 02070363842 | |
| Southcot Services Ltd | 46 Tuffley Crescent, Gloucester GL1 5NE | 01452423671 | |
| Southern Business Communications Ltd | Unit 14 Towergate Industrial Park, Colebrook Way, Andover, Hants SP10 3BB | 01264 336644 | https://www.sbcltd.co.uk/ |
| Southern Communications Ltd | Glebe Farm, Down Street, Dummer, Basingstoke, Hampshire RG25 2AD | 0845 634 0800 | https://www.southern-comms.co.uk/ |
| Southern Electronic Services Ltd | Banbury House, Market Street, Weymouth, Dorset DT4 8DD | 01305 774 402 | |
| Southern IP | The Lodge, Glynn House, Clyst St.George, Exeter EX3 0QJ | 07463133587 | |
| Southern IT Networks Ltd | Pathway House, 64 Windsor Way, Polegate BN26 6QF | 01323287828 | |
| Southern Media Services Ltd | 3 Brookfield Close, Newport NP194LA | 07712548234 | |
| Southern Solutions UK Ltd | Office 7, 11 Cumberland Place, Southampton SO15 2BH | 0845 180 8030 | |
| Southern Telecom Ltd | 15 Blackmoor Drive, West Derby, Liverpool L12 9ED | 0844 474 4100 | |
| SouthsideTechnology Ltd | 36 Scioncroft Avenue, Rutherglen, Glasgow G73 3HS | 0141 416 0265 | |
| Sovereign Business Integration Group plc | Metro Point, 1a Chalk Lane, BARNET EN4 9JQ | 02082163333 | |
| Sovereign Communications Ltd | |||
| Sovision IT Ltd | soVision IT Ltd, Avon House, Avon Mill Lane, Keynsham BS31 2UG | 01179864026 | |
| SPA Business Services Ltd | Crossbow House, 40 Liverpool Road, Slough SL1 4QZ | 01753 610540 | |
| Spa Computer Centre | 68 Clarendon Street, Leamington Spa CV32 4PE | 01926 337648 | |
| Spa Computers Ltd | 22 Park Street, Leamington Spa CV32 4SU | 01926290230 | |
| Spa Telecoms Ltd | Raglan House, Westminster Bank, West Malvern, Worcs WR14 4BN | 01684 580591 | |
| Spacetel UK Ltd | 15 Bowling Green Lane, London EC1R 0BD | 020 8561 4250 | https://www.spacetel.co.uk/ |
| Spacious Place Contact Ltd | Unit 7, Slater Terrace, Trafalgar St,, Burnley BB111BU | 01282500756 | |
| Spark Compass | 5 Farm Close, Crowthorne, Berkshire, Crowthorne RG45 6SE | 07566 787007 | |
| Spark Energy Ltd | 60B Queen Street, Horsham RH13 5AD | 01403 216138 | |
| Sparkle Telecom Ltd | 27 Old Gloucester Street, London WC1N 3AX | https://www.callhappy.co.uk/ | |
| Sparkz Network Ltd | 54 St James Street, Liverpool L1 0AB | 01512720195 | |
| Sparta Telecom Ltd | 37 Flint Close, Luton LU3 3LX | 01582 259 605 | https://www.spartatelecom.com/ |
| Speak Digital Ltd | 73 Danziger Way, Borehamwood WD6 5DE | 02089707980 | |
| Speak Telecom Ltd | Suite 1, The Old Bank, 2 Coventry Street, Stourbridge DY81EP | 0844 6930306 | |
| SpeakUp BV | Postbus 1330, 7500 BH Enschede, Netherlands | 31 88 7732587 | https://www.speakup.nl/ |
| Specialist Building Products Ltd | Alders Way, Paignton, Devon TQ4 7QE | 01803 697 000 | |
| Spectom-Technology Ltd | Greenfields, Balls Lane BH21 4BG | 05603877781 | |
| SpecTronics Ltd | 8 Lombard Road, Wimbledon SW19 3TZ | 03333 444 110 | |
| Spectrum Communications | https://www.spectrum-coms.co.uk/ | ||
| Spectrum Internet Ltd | Riverside Court, Beaufort Park Way, Chepstow, Monmouthshire NP16 5UH | 0292 002 2345 | https://www.spectruminternet.com/ |
| Spectrum Networks Solutions Ltd | 10 Rusland Circus, Emerson Valley, Milton Keynes MK4 2LL | 02087952876 | |
| Spectrum Telecommunications Ltd | Thatched Cottage, Woodhouses, Yoxall, Burton-on-Trent DE13 8NR | 0845 450 8292 | |
| Spectrum Telecoms | https://www.spectrum-coms.co.uk/ | ||
| Speed Burry Ltd | 7A FIRST FLOOR, EDGWARE ROAD., LONDON W2 2ER | 02074610568 | |
| Speednet Scotland (Speednet Networks) | https://speednetscotland.net/ | ||
| SpeednetScotland Ltd | 26 Calder Avenue, Troon KA107JT | 08000124298 | |
| Speedster-IT Ltd | 12 Riga Mews, London E1 1LL | 020 3011 1234 | |
| Speedy Asset Services Ltd | Speedy Asset Services Ltd, Chase House, Newton le Willows, Merseyside WA11 9SG | 01942 896 565 | |
| Speedy Telecom Ltd | 20-22 Wenlock Road, London N17GU | 01329595890 | |
| Sphere IT Consultants Ltd | 22 Wenlock Road, London N1 7QU | 02035888500 | |
| Spindlewood | https://spindlewood.biz/ | ||
| Spire Business Communications Ltd | County House, St Mary's Street, Worcester WR1 1HB | 08000210100 | |
| Spirit Technology Ltd | 2 exsel house, moorpark ave,, glasgow G69 9DZ | 01417791111 | |
| Spirit Telecom | 20 Nith Street, Glasgow G33 2AF | 01415303968 | |
| Spitfire Network Service | https://www.spitfire.co.uk/ | ||
| Spitfire Network Services Ltd | The Printworks, 139 Clapham Road, London SW9 0HP | 020 7501 3333 | https://www.spitfire.co.uk/ |
| Spoke (Interactive) Ltd | 2nd Floor, Titan Court, 3 Bishop Square, Hatfield, Herts AL10 9NA | 01707 226550 | https://www.spoke-interactive.com |
| Spoknet Ltd | Kemp House, 160 City Road, London EC1V 2NX | 02034689879 | |
| Sports Tel | |||
| Spot2Spot Ltd | 3 Beaumont View, Norton, Stockton upon tees TS20 2TS | 01642924259 | |
| Springo Ltd | 4 Oldfield Road, Bocam Park, Bridgend CF35 5LJ | 07903220919 | |
| Springtel Ltd | 115 Sheen Road, Richmond TW9 1YJ | 07929105362 | |
| Sprint Ltd | Europa House, Southwick Square, Southwick, Brighton BN42 4FJ | 01273 874 200 | |
| Sprint Convergance Ltd | Wrest Park, The Mansion House, Sisoe, Bedfordshire MK45 2RH | 0845 873 0222 | |
| Sprint Integration Ltd | Ryan House, 18-19 Aviation Way, Southend on Sea, Essex SS2 6UN | 01702 209966 | |
| Spruce Computer Systems Ltd | 38-40 Northgate, Newark on Trent NG24 1EZ | 01636642833 | |
| SPSOL Ltd | 10 Quay Road, Bridlington, East Yorkshire YO15 2AP | 0330 077 0030 | |
| SPT Worldwide Ltd | Dissolved January 2020 | https://sptworldwide.com/ | |
| Spur Information Solutions Ltd | Asgard House, Hayward Business Centre, Havant PO9 2NL | 02392455564 | |
| Square 1 Products Ltd | unit 2 Bollin Court, Mill Lane, Lymm, warrington WA13 9SX | 01925530111 | |
| Square Blue IT Ltd | Suite 11, Dunnswoord Rd, Cumbernauld G67 3EN | 01236451916 | |
| Square One Network Ltd | 10 Fountain Court, New Leaze, Bradley Stoke, Bristol BS32 4LA | 0117 3700 200 | |
| Square Systems Ltd | 14 Whiteladies Road, Bristol BS8 1PD | 0117 398 2342 | https://www.squaresystems.co.uk/ |
| square weston Ltd | 127 Frankwell, Shrewsbury SY3 8JU | 01743625826 | |
| Square World Communications Ltd | Wessex House, Station Road, Westbury, Wilts BA13 3JN | 0844 499 4545 | https://www.sq1.co.uk/ |
| Square1 Communications Ltd | Wessex House, Station Road, Westbury, Wilts BA13 3JN | 0844 499 4545 | https://www.sq1.co.uk/ |
| Squarehost Ltd | Jonathan Scott Hall, Thorpe Road, Norwich NR1 1UH | 01603 327349 | https://www.squarehost.co.uk/ |
| Hamsterbird Ltd | 73 Aston Ave, Manchester M14 7HL | 07447483268 | |
| Squirecom Ltd | 165-171 Humberstone Road, Leicester LE5 3AF | 0116 2422670 | |
| SRD Technology Uk Ltd | 41 Regal Walk, Bridgwater, Somerset TA6 4FL | 020 7183 5174 | |
| SSE | PO Box 230, Havant, Hants PO9 9DT | 0345 026 7045 | https://www.sse.co.uk/ |
| SSE Retail Telecoms Ltd | No 1 Forbury Place, Reading RG1 3JH | 0345 071 9886 | |
| SSE Telecommunications Ltd | Inveralmond House, 200 Dunkeld Road, PERTH PH1 3AQ | 01738456324 | |
| Ssr System Ltd | The Mille, 1000 Great West Rd, Brentford, London TW8 9DW | 0NQQ | |
| St & W ( UK) Ltd | 4 Perseverance works, 38 kingsland, London E2 8DD | 0845 1602379 | |
| St Davids IT Ltd | Nutwell Estate, Lympstone, Devon EX8 5AN | 01392 872 931 | |
| St Ives Management Services Ltd | One Tudor Street, London EC4Y 0AH | 020 7928 8844 | |
| Sta Technology Ltd | 4 BERESFORD AVENUE, AYLESBURY HP19 9RU | 01296584935 | |
| Stability IT Support Ltd | Trigg House, Warren Drive, Prestatyn LL19 7HX | 01745508555 | |
| Stabilys Ltd | 244 Kilburn Lane, LONDON W10 4BA | 020 8960 0365 | |
| Stable Communications Ltd | 21 Messiter Mews, Willington, Derby DE65 6PG | 01283 777012 | |
| Stack Telecommunications Solutions Ltd | Bridle House, 1 Bridle Way, Bootl, Liverpool L30 4UA | 01515212202 | |
| Stadia Solutions Ltd | 107-111 Fleet Street, London EC4A 2AB | 02071004545 | |
| Staffs Tech Ltd | 517-519 King Street, Longton, Stoke-On-Trent ST31HE | 03300165568 | |
| Standard Utilities Ltd | Forsyth House, Cromac Square, Belfast BT2 8LA | 02890 511 266 | |
| Standard Utilties | https://www.hellosu.com/ | ||
| Stanridge (UK) Ltd | Stanridge, 11a Ambleside Avenue, Telscombe Cliffs, Peacehaven BN10 7LS | 01273 358052 | |
| Star Europe Ltd | 626 Chiswick High Road
London W4 5RY |
020 8580 5150 | |
| Star IT Ltd | 1 St. Ives Enterprise Centre, Caxton Road, ST. IVES PE27 3NP | 01480262222 | |
| Star Technology Services Ltd | Brighouse Court, Barnett Way, Gloucester GL4 3RT | 0845 604 7376 | |
| Star Telecom | 9 St James Street, Walthamstow, London E17 7PJ | 07525 371504 | |
| Starcomm Ltd | Compulsory liquidation, November 2016 | ||
| Stardex (UK) Ltd | Summit House, 4-5mitchell Street, Edinburgh EH6 7BD | 0141 357 3174 | https://www.stardexuk.com/ |
| Staveley Communications Ltd | 23 Sam Road, Oldham OL3 5PU | 01457877111 | |
| Staxoweb Supply Services Ltd | Bentinck House, West Drayton, Middlesex UB7 7RQ | 02071484581 | |
| Steel Software Solutions Ltd | Albert St, Oldham OL83QL | 0161 684 2355 | |
| Steer IT Solutions Ltd | 19 Windsor Place, South Glam, Cardiff CF10 3BY | 02920348877 | |
| STEL Communications | |||
| S-Tel Communications Group Ltd | |||
| Steljes Ltd | Bagshot Manor, Green Lane, Bagshot GU19 5NL | 08450747222 | |
| Stella Communications Ltd | PO Box 303, Plymouth PL8 1XQ | 0870 033 0522 | |
| Stellarise Ltd | 54 Maltings Place, 169 Tower Bridge Road, London SE1 3LJ | 020 3137 3550 | |
| Stem Computer Systems Ltd | Phoenix Business Centre, Low Mill Road, Ripon HG4 1NS | 01765 696969 | |
| Stem Group Ltd | STEM House, 1 Calville Gardens, Aylesbury HP18 0UX | 07792192991 | |
| Stem Networks | 10 Thornbury Road, Estover, Plymouth PL6 7PP | 01752 692205 | |
| Stephen Mcconville | 16 Fulford Close, Liverpool L129ND | 07546235812 | |
| STERCAP (ENERGY) Ltd | Stercap House, Wakefield Road, Brighouse HD6 1PU | 01484401222 | |
| Sterling Syncordia | Sterling House, 102a Station Road, Sidcup, Kent DA15 7DE | 08453 109010 | |
| Sterling Telecommunications Ltd | |||
| Steve Abraham | Suite 161, 24 Station Square, Inverness IV1 1LD | 01463 548600 | |
| Steve Boyle | 89 Bedford Road, Aberdeen AB24 3LN | 07881 602 731 | |
| Steven King Ltd | 7 okeford drive, Tring HERTS | 01442 825128 | |
| Stickman Technology | Unit 72, Basepoint Centre, Andersons Road, Southampton SO14 5FF | 0345 003 4676 | |
| Stitch Ai Ltd | Raven House, 29 Linkfield Lane, Redhill RH1 1SS | 03300162940 | |
| Anglia Computer Solutions Business Ltd | Flat 2, Quarndon Court, 7A Montague Road, Sheringham NR26 8LN | 01263340690 | |
| Stix Internet Ltd | Imperial House, 38 North Road, Kirkburton, Huddersfield HD8 0RH | 01484937027 | |
| STL Communications Ltd | Park House, Station Lane, Witney, Oxon OX28 4LH | 01993 777144 | |
| Stonecrop Ltd | 6 Riverside Court, Bath BA2 3DZ | 01225473052 | |
| Stonegate Technologies LLP | Clarence House, 279 Helmshore Road, Haslingden, Lancs BB4 4DJ | 0845 344 2245 | |
| StoneHouse Logic Ltd | Unit F1, Jct 7 Business Park, Clayton-le-Moors, Lancashire BB5 5JW | 0845 2990 147 | |
| Storacall Technology Ltd | Unit C1, The Dolphin Estate, Windmill Road, Sunbury TW16 7HE | 01932 710710 | https://www.storacall.co.uk/ |
| Storm Cloud Networks | http://www.stormcloudnetworks.co.uk/ | ||
| Storm IT Technology Ltd | 419 Stratford Road, Shirley, Solihull, West Midlands B90 4AA | 0121 693 3353 | |
| Storm-I.T. Ltd | 42 Lytton Road, London EN5 5BY | 08453551155 | |
| Story Telecom | Britannia House, 958 High Road, London N12 9RY | 020 8497 9210 | https://www.storytelecom.com/ |
| Stour Marine Ltd | Good Easter House, Good Easter, Chelmsford CM1 4RS | 020 8040 0000 | https://www.stourmarine.net/ |
| Straight Talking Telco Ltd | Premier Business Centre, 47-49 Park Royal Road, London NW10 7LQ | 020 7998 6898 | https://www.sttelco.co.uk/ |
| Strata1 Ltd | Unit 11 Europa Tool House, Springbank Industrial Estate, Belfast BT17 0QL | 02895622010 | |
| Stratas Business Solutions LLP | 1st Floor, Power house, Harrison Close, Knowlhill, Milton Keynes MK5 8PA | 07799 411116 | |
| Strategic Network Consulting Ltd | 180 Piccadilly, London W1J 9HF | 0845 521 6111 | |
| Stratford IT Ltd | 46 Cherry Orchard, Stratford upon Avon, Warwickshire CV37 9AP | 01789 868 867 | |
| Stratiis Ltd | Pavillion 1, 15 Cambuslang Road, Glasgow G32 8NB | 0845 644 0771 | |
| Stratus Hosting LTD | 55 Aldgate, Stamford PE9 3TD | 01603 670004 | |
| Stratus Technologies Ltd | Unit Rr122, Longbeck Estate, Redcar TS11 6HB | 01642697777 | |
| Stream Group | 100-102 Headstone Rd, Harrow, Middlesex HA1 1PF | 020 8933 6611 | |
| Stream Live Ltd | 20 Central Avenue,, St Andrews Business Park, Thorpe St Andrew, Norwich NR7 0HR | 01635 000000 | https://www.thecircle.com/ |
| Stream Networks Ltd | Gainfield House, Gainfield, Faringdon SN7 8QQ | 01635 884 170 | https://www.stream-networks.co.uk/ |
| Streamlink Ltd | 83 Matheson Road, Southampton SO16 8GS | 01244557333 | |
| Streym Ltd | 3.1C Union Court, 20 -22 Union Road, London SW4 6JP | 0845 2301420 | |
| Stride Communications Ltd | Unit 65 Cressex Enterprise Centre, Lincoln Road HP12 3RL | 0844 247 0322 | https://www.stridecommunications.co.uk/ |
| Strident Computer Systems Ltd | Claydoncourt, Old Ipswich Road, Claydon IP6 0AE | 01473835281 | |
| Stripe 21 Ltd | The Atrium, Curtis Road, Dorking, Surrey RH4 1XA | 0845 872 2121 | |
| Strobe Technologies Ltd | 17 Courtney Road, Tiverton EX16 6EE | 01884664004 | |
| Strong Telecoms Ltd | 3 North Street, Brierley Hill DY5 3QA | 01384380292 | |
| Stronghold IT Services Ltd | Woodfield Business Centre, Carr Hill, Doncaster, South Yorkshire DN4 8DE | 01302 515 140 | |
| Stroudy IT Ltd | 29 Bridgford Road, West Bridgford, Nottingham NG2 6AU | 0115 7043156 | |
| Structured Commercial Applications Ltd | Vanguard Business Centre, Alperton Lane, Greenford UB6 8AA | 02089952914 | |
| Structured Communications Ltd | St Martins House, 16 St Martins Le Grand, London EC1A 4EN | 020 3195 3333 | https://www.structuredcommunications.co.uk/ |
| Structured Information Technology Solutions Ltd | 61 Alexandra Rd, Lowestoft NR32 1PL | 01603 455554 | |
| Stuart J.Green Digital Engineering Ltd | 27 Market Place, Market Rasen, Lincolnshire LN8 3HL | 01673 898 001 | |
| Studio Cp Enterprise Ltd | 25 HILLINGDON RISE, 25 HILLINGDON RISE, 25 HILLINGDON RISE, SEVENOAKS TN133RE | 07475551414 | |
| Subset Solutions Uk Ltd | Cambridge Studios, Millmarsh Lane, EN1 7UY ENFIELD | 02034681421 | |
| Subtopia Ltd | Faraday Wharf, Innovation Birmingham Campus, Birmingham B7 4BB | ||
| Sumlock Bondain (EA) Ltd | 64 Hellesdon Park Road, Norwich NR6 5DR | 01603 787323 | |
| Sundial Telecom Ltd | Newton House, 2 Pioneer Court, Chivers Way, Histon, Cambridge CB24 9PT | 0844 801 4000 | |
| Sundon Ltd | 154 SUNDON PARK ROAD, LUTON LU3 3AH | 07791088705 | |
| Sunley Communications Ltd | 6 Flamstead end road, Cheshunt, Herts EN8 OHH | 01992 645 040 | |
| Sunrise Networking Ltd | Unit 28, Peartree Farm, Peartree Lane, Welwyn Garden City AL7 3UW | 01707445500 | |
| Sunrise Unified Solutions Ltd | 24-25 Broughton Grounds Lane, Milton Keynes MK16 9HZ | 01908 200770 | |
| Sunrisetechnologies.co.uk Ltd | 25 Seax Court, Basildon SS15 6SL | 01268 543995 | |
| Supatel Ltd | Indigo House Blackburn Road Simonstone Burnley, Lancashire BB12 7NQ | 0870 830 3122 | http://www.supanet.com/ |
| Supatel Ltd | Totalcare Support Centre, Time Technology Park, Blackburn Road, Burnley BB12 7TW | 0845 120 4473 | |
| Supercomms Ltd | 26 Linden Close, Warwick CV34 5RF | 01926 289 610 | |
| Superfast Advisory Service Ltd | Unit 3 Tustin Court, Portway, Preston PR2 2YQ | 01772 282447 | |
| Supply Group Ltd | Unit 1 Romsey industrial Estate, Greatbridge Road, Romsey SO51 0HR | 03332226600 | |
| Supply Network Services LLP | Unit 1, Romsey Industrial Estate,, Great Bridge Road,, Romsey, Hampshire SO51 0HR | 0800 294 2030 | |
| Support IT Solutions | Unit 2 Croxted Mews, 268a-288 Croxted Road, London SE24 9DA | 0845 680 0210 | |
| Support Network Services Ltd | The Thatched Cottage, Monkton, Ramsgate CT124JP | 01843822430 | |
| Support Telecom Ltd | Unit 4, Rays Farm Barns, Roman Road, Ingatestone, Essex CM4 9EH | 0800 8048840 | |
| Support UK | 2 Devonshire Business Centre, Works Road, Letchworth, Herts SG6 1GJ | 0845 0580330 | |
| Supported Business Ltd | 2 Wannions Close, Chesham, HP5 1YA | 020 3011 1313 | https://www.supportedbusiness.com/ |
| Supported Computing Ltd | 523 Ringwood Road, Ferndown, Dorset BH22 9AQ | 01202 814 800 | |
| SupportKey Ltd | Ladywell Business Centre, 94 Duke Street, Glasgow G4 0UW | 0141 552 8505 | |
| Supportplan Ltd | 1a Park Place, 1 Lawn Lane, London SW8 1UD | 020 7582 9999 | |
| support-uk | https://www.support-uk.com/ | ||
| Supreme Group UK | Masonry Solutions House, Units 1 & 2 Cedar Park, Tame Valley Ind Est,, Tamworth B77 5DE | 01827 247345 | |
| Sure (Guernsey) Ltd | PO Box 3, Telecoms House, Upland Road, St Peter Port, Guernsey GY1 3AB | 01481 700700 | https://web.sure.com/guernsey |
| Sure (Guernsey) Ltd, Sure (Isle of Man) Ltd | PO Box 3, Telecoms House, Upland Road, St Peter Port, Guernsey GY1 3AB | 01481 700700 | https://web.sure.com/guernsey |
| Sure (Isle of Man) Ltd | 14 Athol Street, Douglas, Isle of Man IM1 1JA | 07624 247 247 | https://web.sure.com/isleofman |
| Sure (Jersey) Ltd | King Street, St Helier, Jersey JE2 4WE | 0808 10 15 247 | https://web.sure.com/jersey |
| Sure Communication Ltd | 8 Bede House, Tower Road, Glover Ind Est, Washington NE37 2SH | 01915008510 | |
| Sure Telecommunications Ltd | South Wing, 44a link house, high street, Fareham PO167BQ | 02394214923 | |
| Sureline Communications Ltd | The Old Coach House, Mill Yard, Swan Street, West Malling, Kent ME19 6LP | 01732 252 000 | |
| Suretec Systems Ltd | Unit 22, The James Gregory Centre, Aberdeen Science and Technology Park, Bridge of Don, Aberdeen, AB22 8GU | 01224 279484 | https://www.suretecsystems.com/ |
| Surftec Ltd | 5 Mead Lane, Farnham GU9 7DY | 01428 608121 | |
| Surrey Hills Internet | http://surreyhillsinternet.co.uk/ | ||
| Sussex Backup Ltd | 61 Church Road, Hove, East Sussex BN3 2BP | 01273 900895 | |
| Sutcliff Ltd | 1 Derwent Business Centre, Clarke Street, Derby DE1 2BU | 07432140456 | |
| Suzugia Ltd | Bullimores House, Church Lane, Cranleigh GU6 8AR | 01483 268834 | |
| Swale Life CIC | Greenses Farm, Muker, Richmond DL11 6DY | 01748886269 | |
| Swan Network Solutions Ltd | The Stables, 2 Erwood Street, Warrington, Cheshire WA2 7NW | 0845 6436011 | |
| Sweet Coms Ltd | Unit 1, Secure park, Nine Mile Water, Stockbridge, Hampshire SO20 8DR | 01794 329022 | |
| Sweet Telecom Ltd | 19 Station Road, Romsey, Hants SO51 8DP | 0808 202 2021 | |
| Sweetbyte Ltd | Wensley House, 9 Purdeys Way, Purdeys Ind Est, Rochford SS4 1ND | 01702540776 | |
| Sweethaven Computers | Sweethaven House, Trehaven Parade, Reigate, Surrey RH2 7LL | 01737 247090 | |
| SWI Consulting Ltd | Bernay House, Haslemere GU27 3SE | 01428794416 | |
| Swift Communications Ltd | 22 Brookside, Sawtry, Huntingdon, Cambs PE28 5SB | 01480 531124 | https://www.swiftcomm.co.uk/ |
| swift fibre communications ltd | 75 delph street, wigan WN6 7EF | 07540191762 | |
| Swift Internet (Online Marketing) | https://www.swiftinter.net/ | ||
| Swift IT Computer Services Ltd | 7 SHENLEY PAVILIONS, CHALKDELL DRIVE, SHENLEY WOOD, MILTON KEYNES MK5 6LB | 01908502906 | |
| Swift Managed Services Ltd | The Phoenix Brewery, 13 Bramley Road, London W10 6PS | 0870 748 1233 | |
| Swift Telecom (Network Solutions) Ltd | Howard House Bryon Avenue, Felixstowe IP11 3HZ | 0870 1690070 | |
| Swift Telecom (Network Solutions) Ltd | 44 Bellevue Road, Bristol BS57PG | 08717664892 | |
| Swiftel Ltd | 73 Francis Road, Edgbaston, Birmingham B16 8SP | ||
| Swiftnet Ltd | Olympia House, Armitage Road, London NW11 8RQ | 034 4545 0051 | https://www.swiftnet.co.uk/ |
| SWIFTsoft Computer Systems (N.I.) Ltd | Ferney Business Park, Ballinamallard BT94 2HH | 02866388833 | |
| Swish Fibre Ltd | 6th Floor 33 Holborn, London EC1N 2HT | 07944 506 765 | |
| Swish X Ltd | 37 Meadow Brook Close, Normanton, Wakefield WF6 1TG | 01924939135 | |
| Swishband Ltd | 37 Meadow Brook Close, Normanton, Wakefield WF6 1TG | 01924 939135 | |
| Swisstok Telnet UK Ltd | Kestrel Court, Harbour Road, Portishead, Bristol BS20 7AN | ||
| Switch Communications | No1 Croydon, Croydon CR0 0XT | 020 8604 0000 | https://www.switchcomms.co.uk/ |
| Switch Connectz Ltd | 6 Swordfish Way, Sherburn in Elmet, Leeds LS25 6NG | 07958740689 | |
| Switch IT Support Ltd | 128 Thornes Lane, Wakefield WF2 7RE | 01924 911210 | |
| Switch Networks Ltd | School House, Whitwell On The Hill, York YO60 7SS | 01653 917 000 | |
| Switch On IT LTd | 33 Morley Street, Swindon SN11SG | 01793230680 | |
| Switch Utilities | Newbrook House, 385 Alfreton Road, Nottingham NG7 5LR | 0845 634 1005 | |
| Switch2 Telecoms Ltd | (In liquidation) | ||
| Switch2day Ltd | 9 Somerset Place, Glasgow G3 7JT | 08444 417 6030 | |
| Switch2it Ltd | Suite 8 Design House, Guildford Road, Bookham, Surrey KT23 4HB | 0800 083 3416 | |
| Switch2Mobile Ltd | Elwood House, 42 Lytton Road, Barnet, Hertfordshire EN5 5BY | 0871 666 4293 | |
| Switchconnect | Orchard Business Centre, 13-14 Orchard Street, Bristol BS1 5EH | 0845 652 2222 | https://www.switchconnect.co.uk |
| Switchnet Systems Ltd | 5 Cecil Court, Pegrams Road, Harlow CM18 7QR | 01279 306 060 | |
| Switchshop Ltd | Switchshop House, Enterprise Park, Kimpton, Hitchin SG4 8HP | 01438831870 | |
| SY Ltd | 3 Wycombe End, Beaconsfield HP9 1LZ | 08443306758 | |
| Sybaris Ltd | Forum 3 Parkway, Solent Business Park, Whiteley, Fareham, Hampshire PO6 2TL | 01489 611 822 | |
| Sycom Services Ltd | Unit 1 Oggshole Farm, Broomfield, Bridgwater TA5 2EJ | 0845 056 5605 | |
| Sygen Ltd | Unit 5 Downs Way Industrial Estate, Heathhall, Dumfries DG1 3RS | 01387 268 826 | |
| Symbio Communications Ltd | Symbio Place, Whiteleaf Road, Hemel Hempstead, Herts HP3 9PH | 0800 145 5015 | |
| Symbiosis Delta Ltd | 2 Camelot Court, Somerton Business Park, Somerton TA11 6SB | 01458 270 027 | |
| Symbol Consulting Ltd | Symons House, Belgrave Street, Leeds LS2 8DD | 0113 243 2172 | |
| Symec Technologies Ltd | 159 Four Acres, Bristol BS13 8RA | 0117 964 1552 | |
| Synapse UK Ltd | Communications House, 26 York Street, London W1U 6PZ | 020 7060 3500 | |
| Synchronised LLP | Building 3 NLBP, London N11 1GN | 03303334782 | |
| Syncratel Ltd | 39 Brookmill road, London SE8 4HU | 03333 44 5454 | |
| Synectiv Ltd | 4 Apsley Way, London NW2 7HF | https://www.synectiv.com/ | |
| Synergy Associates Ltd | 1 Great Cumberland Place, London W1H 7AL | 020 7487 9980 | |
| Synergy Comms Ltd | 18, Egerton Road, Altrincham, Hale WA15 8EE | 01613581099 | |
| Synergy IT Solutions and Management Ltd | Suite 5, The Chamberlain Building, 36 Frederick Street, Jewellery Quarter, Birmingham B1 3HN | 07891670774 | |
| Synergy Max Ltd | Suite 2a Moorgate Point, Moorgate Road, Knowsley, Merseyside L33 7XW | 01512303949 | |
| Synergy Mobile Ltd | 56 Sheep Street, Northampton NN1 2LZ | 0871 200 3487 | |
| Synergy Office Solutions LLP | Endeavour House, 1 Lyonsdown Road, Barnet EN5 1HR | 0800 915 6666 | |
| Synergy Office Solutions LLP t/a Synergyplus | http://www.synergyplus.uk.com/ | ||
| Synestar Ltd | 24 Holborn Viaduct, City of London, London EC1A 2BN | 07885656997 | |
| Synetrix Holdings Ltd | Innovation Centre Keele Park, Staffordshire, ST5 5NB | 01782 338200 | |
| Synetrix Holdings Ltd | Innovation Centre, Keele Park, Staffordshire ST5 5NB | 01782 338200 | |
| Synety Ltd | 1 Colton Square, Leicester LE1 1QH | 033 0335 0000 | https://www.cloudcall.com/ |
| Synextra Ltd | Warren Bruce Court, Warren Bruce Lane, Manchester M17 1LB | 01618831383 | |
| Synium Ltd | Fell House, Shallowford Court, High Street, Henley in Arden B95 5FY | 01216630203 | |
| Synotio Business Communications Ltd | No.5, Crossford Court, Dane Road, Sale., Greater Manchester M33 7BZ | 01614462772 | |
| Syn-Star PC Store Ltd | 7 The Square, Petersfield, Hampshire GU32 3HJ | 01730 233350 | |
| Syntec Ltd | 18 The Avenue, London W13 8PH | 020 7741 8000 | https://www.syntec.co.uk/ |
| Syntec UK Ltd | 18 The Avenue, London W13 8PH | 020 7741 8000 | https://www.syntec.co.uk/ |
| Synthesis IT Ltd | Amron House, Borough Road, North Sheilds, Tyne & Wear NE29 6RN | 0191 270 4371 | |
| Synthetic Dominion IT Services Ltd | Unit 5 Peel House, Shipley BD18 3NA | 01274 288022 | |
| Sys3 Ltd | Suite 2, The Centre, Colchester Business Park, Colchester CO4 9QQ | 0345 3131919 | |
| Syscomm Ltd | Syscomm House, Park Road, Kenilworth, Warwickshire CV8 2GF | 01926 856000 | |
| SysFix IT Support | 99 Meadvale Road, London CR0 6JZ | 020 3095 7740 | |
| Sysgroup Plc | Walker House, Exchange Flags, Telford, Liverpool L2 3YL | 03331019000 | |
| Sysnet Support Ltd | 6a Bicton Lane, Bicton, Shrewsbury, Shropshire SY48EH | 01952898301 | |
| Sysright Ltd | 10 Cassilis Rd, Twickenham TW1 1RU | 02088923956 | |
| SysSolutions Ltd | Avalon,, Rowley Lane, Barnet EN5 3HT | ||
| Systech IT Solutions Ltd | Brough Business Centre, Skillings Lane, Brough HU151EN | 01482 770583 | |
| SYSTECHIT Technology Ltd | 83 Ducie Street, Manchester M1 2JQ | 01978288888 | |
| Systeem Ltd | The Old Haybarn, Oulton Estate, Tarporley, Cheshire CW6 9BL | 07551337117 | |
| System 15 Ltd | Kestrel Court, Waterwells Business Park, Quedgeley, Gloucester GL2 2AT | 01452 643515 | |
| System Force I.T | Units C1 and C2 Brearley Place, Baird Road, Quedgeley, Gloucestershire GL2 2GB | 0845 862 0077 | |
| System Information Technology Ltd | 1 Merchants Drive, Parkhouse, Carlisle, Cumbria CA3 0JW | 01228 516 555 | |
| System Integrity Ltd | 3 East Hill Road, Auchterarder, Perthshire PH3 1RA | 01764 660 222 | |
| System Online Ltd | 250 Main Road, Gidea Park, Romford, Essex RM2 5EQ | 0845 643 0720 | |
| System Wise Ltd | 107 Saughtonhall Drive, Edinburgh EH12 5TS | 0131 313 0707 | |
| Systemagic Ltd | Waterhouse, Waterhouse Lane, Bath BA2 7JB | 01225426800 | |
| Systemhost Ltd | Holmere Hall, Yealand Conyers, Carnforth, Lancs LA5 9SN | 01524 737414 | |
| systemit | Warwick House, Allenbrook Road, Rosehill, Carlisle CA1 2UT | 01228516555 | |
| Systems (Telecoms) Ltd | |||
| Systems Analysis Design & Support Ltd | Helena House, 11 Romney Place, Maidstone ME15 6LE | 08448111167 | |
| Systems Axis Ltd | Axis House, 53-55 St Mary Street, Bridgwater TA6 3EQ | 01278 421020 | |
| Systems In Technology Ltd | 2 Court Mews, 268 London Road, Cheltenham GL52 6HS | 02035983954 | |
| Systems Intergration UK Ltd | Ragsdale House, Burton Road, Woodville, Derbyshire DE11 7JG | 0800 980 0080 | |
| Systems IT Support & Consultancy Ltd | Europoint House, 5-11 Lavington Street, London SE1 0NZ | 0844 854 6844 | |
| Systems Supported Ltd | 11A Camp Road, North Camp, Farnborough, Hampshire GU14 6EN | 01252 333888 | |
| SystemTalk Ltd | Berkeley House, 18-24 High Street, Edgware, Middlesex HA8 7RP | 0845 051 8264 or 020 8150 9300 | |
| Sytec - Systems & Technology Ltd | 26 Parkers Close, Salisbury SP5 3RB | 0333 344 2222 | |
| SyTech IT Ltd | 96 New Street, Biddulph Moor, Stoke-on-trent ST8 7NW | 01782 478382 | |
| T & T Stores Ltd | The Cottage, Hill Lane, Kilgetty SA68 0QR | 01834218270 | |
| T 7 Solutions | (dissolved November 2011) | ||
| T Allen | 44-46 Bath Street, Leamington Spa CV31 3AE | 01926857276 | |
| T G Allison | Sychpant, Rhoshill, Cardigan SA43 3DJ | 01239842386 | |
| T X I | https://www.txiltd.co.uk/ | ||
| T.E.L Communications Ltd | 194 booth road, Bacup OL13 0TH | 07581006181 | |
| T.N.Direct LTD | International House, International Business Park, George Curl Way, Southampton SO18 2RZ | 0843 532 1088 | |
| T.T.C. Ltd | Telephone House, New Pudsey Court, 105 Bradford Road, Pudsey, Leeds LS28 6AT | 0113 236 2500 | |
| T.T.N.C. Ltd | |||
| T1 Telecom's Ltd | Coates School, 2 Jersey Street, Manchester M4 6JB | 0870 9022020 | |
| T24 Ltd | (in liquidation) | ||
| T3A Solutions (London) | 13 Wadhurst Court, Telham Road, London E6 6BS | 08719969056 | |
| T8lk Ltd | W2-01 Columba House, Adastral Park, Martlesham IP5 3RE | 02086198888 | |
| Tabsoft Ltd | 75 Springfield Road, Chelmsford CM2 6JB | ||
| Tacstalk (Thomson Alarms & Comms Systems Ltd)(Tacs) | 3 Ryeside Mills, Drakemyre, Dalry KA24 5JD | 01294 835000 | |
| Tactile Technology Ltd | 6 The Courtyard, 707 Warwick Road, Solihull B91 3DA | 0121 270 0370 | |
| Taff Media Ltd | 3rd Floor, Capital Tower, Greyfriars Road, Cardiff CF10 3AG | 0333 444 8233 | |
| Tagadab | https://www.tagadab.com/ | ||
| Take IT Further LTD | 20-22 Wenlock Road, London N17GU | 07985186872 | |
| Talk (Voice & Data) Uk | |||
| Talk Box Telecom Ltd | 20-22 Wenlock Road,, London N1 7GU | 02080035969 | |
| Talk Business Solutions Ltd | Y2K House, Millennium Court, Ellerbeck Way, Stokesley TS9 5JZ | 01642713667 | |
| Talk Easy Telecom LTD | 1st Floor 2 Woodberry Grove,, London N12 0DR | 08432 677777 | |
| Talk Fair Ltd | The Weston Centre, Crewe, Cheshire CW1 6FL | 01270 898501 | |
| Talk Internet Ltd | Suite 12,, Xpdia, Crab Lane,, Warrington. WA2 0XP | 0845 310 1010 | |
| Talk Internet (Talk 101) | https://www.talk-101.com/ | ||
| Talk King | 4 The Green, Luton, Befordshire LU4 9PG | 08000 141488 | |
| Talk Mobile | https://www.talkmobile.co.uk/ | ||
| Talk Numbers Ltd | Suite 4a, 43 Berkeley Square, London W1J 5AP | 033 0030 0900 | https://talknumbers.co.uk/ |
| Talk On Ltd | Armour House, Armour Road, Reading RG31 6HF | 0870 224255 | |
| Talk Straight Ltd | Mayfield House, 5a Little Lane, IIkley, West Yorkshire LS29 8EA | 01133 221 880 | |
| Talk Straight Group | https://www.talk-straight.com/ | ||
| TALK Telecommunications Ltd | |||
| Talk Time UK | https://talktimeuk.co.uk/ | ||
| Talk Together (Wales) Ltd | 30b Cowbridge Road, Pontyclun, Mid Glamorgan CF72 9EE | 01443 449929 | |
| Talk UK | 25 Castlegate, Berwick-upon-Tweed, Northumberland TD15 1LF | 0870 224 1400 | |
| Talk UK Mobiles Ltd | The Barn, Warren Court, High Street, Old Stevenage,, Herts SG1 3DW | 08448 732123 | |
| Talk2Day Ltd | 28 Merefield Street, 172 Manchester Road, Rochdale OL113RU | 07966141713 | |
| Talk4 Communications Ltd | Suite 6D Britannia House, Leagrave Road, Luton LU3 1RJ | 01582380048 | |
| Talkinfo Ltd | Voice House, 12 Beech Grove, Gosport, Hampshire PO12 2EJ | 023 9234 7206 | |
| Talking Business Southern Ltd | Unit 31, The Ridgeway Industrial Estate, Iver, Slough, Berkshire SL0 9HW | 01753 659 821 | |
| Talking Number | http://www.talkingnumber.com/ | ||
| Talking Technology Ltd | Technology House, 11 Palmerston Road, Sutton, Surrey SM1 4QL | ||
| TalkNMore Communications Ltd | 15 Enterprise Court, Crosland Park, Cramlington NE23 1LZ | 01670300669 | |
| TalkSolution ltd | 35 ruddlesway, windsor SL4 5SF | 02089355512 | |
| TalkTalk Telecom Ltd | 1 Portal Way, London W3 6RS | 020 8896 5000 | https://www.talktalk.co.uk/ |
| TalkTalk Communications Ltd | Stanford House, Garrett Field, Birchwood, Warrington WA3 7BH | 0845 330 3456 | https://www.talktalkbusiness.co.uk/ |
| Tall Media Networking Group Ltd | Unit 3, Havest Lane, Sheffield S3 8EF | 01143830421 | |
| Tall Penguin Media Ltd | 155 Tilehouse Green Lane, Knowle, Solihull, West Midlands B93 9EB | 07813 954 755 | |
| Tamar Telecommunications (Kalnet4u Ltd) | 81 St Modwen Road, Parkway Ind Estate, Plymouth PL6 8LH | 01752 548143 | https://www.tamartelecommunications.co.uk/ |
| Tancroft Communications Ltd | 48a Monmouth Street, London WC2H 9EP | 020 7557 9800 | |
| TandyUK Servers Ltd | 2 Carlisle House, 36 Lansdowne Road, Worthing, West Sussex BN11 5HB | 08444 140340/1903 247 011 | https://www.tandyukservers.co.uk/ |
| Tango Networks UK Ltd | 1 Gemini Business Park, Sheepscar Way, Leeds LS7 3JB | 0113 397 1100 | https://www.tango-networks.com/ |
| Tanist Ltd | Unit 2, The Glebe, Blisland, Bodmin PL30 4JE | 01208 851 166 | |
| Tannas LTD | Tannas House, Unit 13-14 Cygnus Business Centre Dalmeyer Road, London NW10 2XA | 02084590521 | |
| Tantra Ltd | 48 Kensington Park Road, Bristol BS4 3HU | 01179836999 | |
| Tap Gateway Ltd | 1 St Michaels, Gonvena Hill, Wadebridge PL27 6DQ | 0808 1176736 | https://www.tapgateway.co.uk |
| Taphon Ltd | 5 Olympic Business Centre, Paycocke Road, Basildon, Essex SS14 3EX | 01268 530 066 | |
| Taran Microsystems Ltd | 61-62 Tempus Business Centre, Kingsclere Road, Basingstoke, Hants RG21 6XG | 01256 817 007 | |
| Target Communications Group Ltd | 8 Redwood Crescent, Glasgow G74 5PA | 07790360221 | |
| Target Internet Ltd | Suite 207, Wellington House, 90-92 Butt Road, Colchester, Essex CO3 3DA | 03456521775 | |
| Target IT Services (Bournemouth) Ltd | 85A Castle Lane West, Bournemouth, Dorset BH9 3LH | 01202538488 | |
| Target Telecoms Ltd | Sherwood House, Coxmoor Road, Sutton in Ashfield, Nottinghamshire NG17 5LA | 01623 444 560 | https://www.targettelecoms.co.uk/ |
| Targeted Software Solutions Ltd | 2 Grange Crescent, Edinburgh EH9 2EH | 0131 467 2371 | |
| Targit Solutions Ltd | 66 Frant Road, Tunbridge Wells, Kent TN2 5LR | 020 7729 4777 | |
| Tariff Reduction Services Ltd | The Hollies, Chester Road, Whitchurch, Shropshire SY13 1LZ | 0870 777 1124 | |
| Tarragon Solutions Ltd | 1st Floor Victor House, Barnet Road, London Colney, Herts AL2 1BJ | 0800 0199 925 | |
| Tartan Group Ltd | 125 Queen Street, Whitehaven CA28 7QF | 01946427494 | |
| Tata Communications (UK) | 1st Floor, 20 Old Bailey, London EC4M 7AN | 020 7029 9500 | https://www.tatacommunications.com/ |
| Tateside Networks Ltd | 10 Dock Street, London E1 8JP | 07774211872 | |
| Taunton Broadband | https://www.tauntonbroadband.co.uk/ | ||
| Taurus Clearer Communications Ltd | Orchard Court, Heron Road, Sowton Estate, Exeter, Devon EX2 7NR | 01392 202000 | |
| Taurus Computers | 1 Vicarage Hill, Wrexham LL13 7HN | 01978 351 636 | |
| Taylor Made Computer Solutions Ltd | Leroux House, Cams Hall Estate, Fareham PO16 8UL | 01329 239900 | |
| Taylorcocks IT Ltd | Unit 12 Acorn Business Centre, Northarbour Road, Cosham, Portsmouth PO6 3TH | 0845 65 90109 | |
| TaylorMade Telecom & Data Ltd | Progress House, 206 White Lane, Gleadless, Sheffield S12 3GL | 01143 583150 | |
| TayStone Solutions Ltd | Unit 4 Gateway Centre, 71 London Road, Liverpool L3 8HY | 0808 109 6100 | |
| TBCAS Ltd | 288 High Road, Tottenham,, London N15 4AJ | 02030261196 | |
| TBSU Ltd | Conservative Chambers, 18 Station Road, Settle, North Yorkshire BD24 9AA | 01729 825 860 | |
| TCF Communications Ltd | Suite 14, Garscadden House, 3 Dalsetter Crescent, Glasgow G15 8TG | 0141 941 4100 | |
| TCL Systems Ltd | 67 Crabtree Lane, London SW6 6LP | 020 7381 1321 | |
| TCL Systems Ltd | 89 Queensmill Road, London SW6 6LP | 020 7381 1321 | |
| TCN Ltd | PoBox 185, Manchester M8 4YZ | 01617736200 | |
| Tconsult Technologies Ltd | Mayfair House, 11 Lurke Street, Bedford MK40 3HZ | 01234 802 400 | |
| TCW Communication Ltd | 2C Priory Court, Tuscam Way, Camberley, Surrey GU15 3YX | 01932 252520 | |
| TDA Computer Systems Ltd | TDA House, Cotysmore Road, Sutton Coldfield B75 6BL | 0121 240 4000 | |
| TDM Group Ltd | 71 Kingsway, London WC2B 6ST | 02070173300 | |
| Team Metalogic Ltd | Orchard House, Caerphilly Business Park, Caerphilly, Mid Glamorgan CF83 3GS | 0845 521 0618 | |
| Team Partners Telecommunications Ltd | 8 Willway, Bristol BS3 4BG | 033 33 58 33 33 | |
| Team Partners Telecommunications T/a 0845 Team | https://www.tptele.com/ | ||
| Team Telecom | http://www.teamtelecomukltd.com/ | ||
| TeamSystem Communication | https://www.voispeed.co.uk/ | ||
| TEC Connect | 17C South Lane, Clanfield, Waterlooville, Hampshire PO8 0RB | 023 9257 0757 | |
| Tec Connect Inc Ltd | 71- 75 Shelton Street Covent Garden, London WC2H9JQ | 02039055475 | |
| Tech Advance Ltd | Swallow Business Park, Carr Lane, Much Hoole, Preston PR4 4TH | 0345 389 2310 | https://www.techadvance.co.uk/ |
| Tech Agents Ltd | Unit 9 Liberty Centre, Mount Pleasant, Wembley HA0 1TX | 02031502547 | |
| Tech Cloud Ltd | Suite 2, 5 Percy Street, London W1T 1DG | 0203 815 7989 | |
| Tech Ease IT Ltd | 30 Lowfield Way, Hazlemere, High WYcombe, BUCKS HP15 7RR | 07958 171608 | |
| Tech Flo (Europe) Ltd | The Flint Barn, Glovers Close, Biggin Hill TN16 3GA | 07939464499 | |
| Tech Hub (North West) Ltd | Bessemer Suite, Ground Floor, Ironworks House, Warton Road, Carnforth LA5 9EX | 01524 566701 | |
| TECH IT PC | 37 SANDS ROAD, PAIGNTON TQ4 6EG | ||
| Tech Support Group | 47 Copley Park, london SW16 3DB | 02033272090 | |
| Tech Support Guru Ltd | 25 Temple Road, Oxford OX4 2ET | 01865 600008 | |
| Tech Systemz Ltd | 20 Hatherton Street, Walsall WS4 2LA | 03300103470 | |
| Tech4 Ltd | 46-48 Willis Way, Poole BH153TB | 01202620048 | |
| Techb-Technology For Business Ltd | 18 Batten Road, Downton Business Centre, Salisbury SP5 3HU | 01725511588 | |
| Techcare Ltd | 119 Anglesey Court, Towers Plaza, Wheelhouse Road, Rugeley WS15 1UL | 01543672123 | |
| Techcomm Ltd | The Lodge, Oakridge Avenue, Radlett WD7 8EW | 0845 389 9110 | |
| Techforce services Ltd | Business Works, Henry Robson Way, South Shields NE33 1RF | 01914327293 | |
| Techgate plc | Moorfoot House, 221 Marsh Wall, London E14 9FJ | 020 7680 6330 | |
| Techies Ltd | 7 St Johns Street, Bedford MK42 0AH | 01234299000 | |
| Techity Ltd | 54 Gathurst Lane, Shevington WN6 8HW | 01257402090 | |
| Technet | The Brunel Building, Scottish Enterprise Park, East Kilbride G75 0QU | 0141 416 2654 | |
| technica | 4 Hamilton Business Park, Stirling Way, Borehamwood WD6 2FR | 020 8236 9160 | |
| Technica Solutions | 4 Hamilton Business Park, Stirling Way, Borehamwood, Hertfordshire WD6 2FR | 020 8236 9160 | |
| Technical Drive | Market Street, Bromsgrove B61 8DA | 01527 880088 | |
| Technical Support and Systems Ltd | Unit 15b, Building 6 Croxley Green Business Park, Watford WD18 8YH | 01923 211899 | |
| Technical Talking Ltd | Kemp House, 152-160 City Road, London EC1V 2NP | 020 7846 4030 | |
| Technicks Solutions Ltd | The Elms, Market Rasen LN8 3JW | 01522 542520 | |
| Technicore Ltd | Crawley Business Centre, West Sussex, RH10 1TN, Stephenson Way,, Three Bridges, Crawley RH10 1TN | 020 3763 2162 | |
| Technidream Ltd | Unit 3 Venture Way, Brierley Hill DY5 1RG | 01384 913613 | |
| Technify Modern Communications Ltd | Malik House, 29 Manor Row, Bradford BD1 4PS | 07557915812 | |
| Technique Ltd | 6 Thatcham Business Village, Thatcham RG19 4LW | 01635 294700 | |
| Technological Services Ltd | 1 Emperor Way, Exeter Business Park, Exeter, Exeter EX1 3QS | 02038833423 | |
| Technologies and Solutions Ltd | Olivier House, 77 79 High Street, Steyning BN17 6EJ | 01903 372002 | |
| Technology Box Ltd | 45 Robertson Street, Hastings, East Sussex TN34 1HL | 0845 890 4717 | https://www.technologybox.co.uk/ |
| Technology Direct Systems Ltd | 12 Grisdale Ct, Woburn Road Ind Est, Bedford MK427EE | 0870 100 0002 | |
| Technology Distribution | |||
| Technology Management (Midlands) Ltd | St Marks Church, St Marks Road, Wolverhampton WV3 0QH | 01902 578300 | |
| Technology Means Business Ltd | A1 Endeavour Business Park, Penner Road, Havant, Hampshire PO9 1QN | 0333 900 9050 | |
| Technology Products Solutions Ltd | Unit 3, Hookstone Centre, Hookstone Chase, Harrogate HG2 7HW | 01423881888 | |
| Technology Resources Ltd | 14 North Street, Leatherhead KT22 7NA | 01372370300 | |
| Technology Services Group | One Gosforth Parkway, Gosforth business Park, Newcastle Upon Tyne NE12 8ET | 0191 2561166 | https://www.tsg.com/ |
| Technology Solutions GRP Ltd | The Tannery, 91 Kirkstall Road, Leeds, West Yorkshire LS3 1HS | 0113 254 92 92 | |
| Brightridge Technology Ltd | Unit 6A Nasmyth Court Houston Industrial Estate, Livingston, EH54 5EG | 0131 202 0777 | |
| Technology To Go Ltd | 31-33 Chapel Hill, Huddersfield HD1 3ED | 01484415960 | |
| TechnoNerds Ltd | 65 Newport Road, Woburn Sands, Milton Keynes MK17 8UQ | 01908410236 | |
| Technos Solutions Ltd | The Old Mill House, Merretts Mill, Woodchester, Stroud GL5 5EX | 01453808202 | |
| Techquarters Ltd | Riverside House, 27-29 Vauxhall Grove, London, London SW8 1SY | 02031892916 | |
| Techsapiens Ltd | 86-90 Paul Street, London EC2A 4NE | 02033848387 | |
| Techshire Ltd | Suite 26, Parker House, Mansfield Road, Derby DE21 4SZ | 07917730416 | |
| Techsultant Ltd | The Joiners Shop, Historic Dockyard, Chatham ME4 4TZ | 01634565232 | |
| Tech-sure U.K. (Stourbridge) | The Old Custom House, 1 Church Street, Stourbridge DY8 4SX | 01384 380292 | |
| TechTeam (UK) Ltd | The Old Rectory, Main Road, Ombersley WR9 0EW | 08448012345 | |
| Techteam IT Solutions Ltd | TechTeam IT Solutions Limited, Station Road, Polegate BN26 6EA | 01424273200 | |
| TechTel Ltd | 465c Hornsey Road, London N19 4DR | 0330 010 0201 | |
| Techvolution Ltd | 50 Glen Drive, Bristol BS9 1SB | 03332004660 | |
| TechVow Ltd | 100 Union Street, Aberdeen AB10 1QR | 01224518998 | |
| Techworx IT | 68 Sherwood Road, Tunbridge Wells TN2 3LQ | 01892 255250 | |
| Techxpert | 2 Hartsbourne Drive, Bournemouth BH7 7JB | 01202 425007 | |
| TECSEC Services Ltd | Vicar Lane, Sheffield S1 2EX | 01142238888 | |
| Tectrix Solutions Ltd | Unit 3e Stag Industrial Estate, Atlantic Street, Altrincham, Cheshire WA14 5DW | 0845 058 9393 | |
| Teesside Networks Ltd | 4 Caernarvon Close, Eston, Cleveland, Middlesbrough TS6 9SG | 01642988228 | |
| Teesside Technology Solutions Ltd | 11 Bulmer Way, Cannon Park, Middlesbrough TS1 5JT | 01642 220682 | |
| Tekkers IT Solutions Ltd | Stag Gates House, 63/64 The Avenue, Southampton, Hants SO17 1XS | 01329 888 625 | |
| Tel Tel Telecom Ltd | Building 5, Dane Road, Sale, Manchester M33 7BZ | 01614462772 | |
| Tel:Mark Communications Ltd | Ground Floor, Museum Place, Cardiff CF10 3BH | 02921 197 297 | |
| telanova Ltd | Premier Gate, Easthampstead Road, Bracknell RG12 1JS | 01344989530 | |
| Telappliant Ltd | 3 Harbour Exchange Square, London E14 9GE | 0345 557 6100 | https://www.telappliant.com/ |
| TelBridge | https://www.telbridge.co.uk/ | ||
| Nine Telecom Ltd | Swan House 146-147 St Helens Road, Swansea SA14DE | 01792 430040 | |
| Telco Group Ltd | Unit 1 The Stables, Wassell Grove Lane, Stoubridge, West Midlands DY9 9JH | 01214877875 | |
| Telco Technologies Ltd | 4, Bridgeman Terrace, Wigan, Greater Manchester WN11SX | 03333583352 | |
| Telcoinabox Ltd | Level 2, 48-54 Moorgate, London EC2R 6EJ | 020 3326 5555 | https://www.telcoinabox.co.uk/ |
| Telcom Networks Ltd | 24/26 Lever Street, Manchester, M1 1DZ, Manchester M11DZ | 03301222970 | |
| Telconet Ltd | The Dairy House, Money Row Green, Holyport, Maidenhead SL6 2ND | 01628951977 | |
| Telconline Inc | |||
| Telco-op Ltd | 10 Guildhall Street, Grantham NG31 6NJ | 01476434069 | |
| TelcoSwitch Ltd | Pound House, 62A Highgate High Street, London NW1 7SN | 033 0122 7000 | https://www.telcoswitch.com/ |
| Tele2 UK Services | |||
| Telebizz Ltd | 3 Eastern Wood Road, Langage Industrial Estate, Plympton, Plymouth PL7 5ET | 01752546333 | |
| Telecall Ltd | Shaw House, Wychbury Court, Brierley Hill, West Midlands DY5 1TA | 0330 333 6400 | |
| Telecom 10 Ltd | 3a Station Road, Cippenham, Slough SL1 6JJ | ||
| Telecom 150 Ltd | 192 Hill Village Road, Sutton Coldfield, West Midlands B75 5JG | 0800 5429150 | |
| Telecom 2000 Ltd | 3 Minster Industrial Park, West Moors, Wimborne, Dorset BH21 6QF | 01202 895 111 | |
| Telecom 9000 Ltd | 207 Regent Street, London W1B 3HH | 020 7340 9000 | |
| Telecom Acquisitions Ltd | Global House, 60b Queen Street, Horsham, West Sussex RH13 5AD | 08454502874 | |
| Telecom and Media | 31 Blackberry Court, Clowne S43 4QH | 01246573408 | |
| Telecom Direct Ltd | Suite 3, Charter House, Courtlands Road, Eastbourne, East Sussex BN22 8UY | 0800 090 1552 | |
| Telecom Essex Ltd | Second Floor, Kestrel House, Falconry Court, Epping, Essex CM16 5BD | ||
| Telecom IC Ltd | 17 Nobel Square, Basildon, Essex SS13 1LP | 01268 726745 | |
| Telecom Maintenance Ltd | 7 Water Street, Thornton, Liverpool L23 1TB | 0151 909 5775 | |
| Telecom Midlands Ltd | Wyndham House, Watson Street, Burton upon Trent DE14 3AH | 08448261661 | |
| Telecom Network Services Ltd | 3 Longthorn, Backwell, Bristol BS48 3GZ | 0845 050 3035 | |
| Telecom Network Solutions Ltd | 86 Derwent Road, London N13 4PX | 0800 157 7700 | |
| Telecom North America Mobile Inc | |||
| Telecom Plus PLC | Dryden House, The Edge Business Centre, Humber Road, London, NW2 6EW | 0871 222 7777 | https://www.telecomplus.co.uk/ |
| Telecom Policy Services | http://www.telecompolicy.co.uk/ | ||
| Telecom Services & Maintenance Ltd | Telecom House, 64 Brighton Road, Lancing BN158ET | 01903855420 | http://www.telecomservice.co.uk/ |
| Telecom Solu7ions Ltd | Suite 9 Station House, Central Way, Warrington, Cheshire WA2 7FW | 01925599201 | |
| Telecom Solutions (GB) Ltd | 8 Experian Way, Nottingham NG2 1EP | 0800 112 3280 | |
| Telecom UK | The Pinnacle, Stationway, West Sussex, Crawley RH10 1JH | 020 7078 9799 | |
| Telecom Warehouse Ltd | Prestige House, Cornford Rd, Blackpool FY4 4QQ | 08700 554 155 | |
| Telecom Yorkshire Ltd | 22 Lochranza Road, Thirsk, North Yorkshire YO7 1GB | 01845 527 462 | https://www.telecomyorkshire.co.uk/ |
| Telecom 2 Ltd | Cotswold House, 219 Marsh Wall, London E14 9FJ | 020 7058 1000 | https://www.telecom2.net/ |
| Telecom365 Ltd | Communications House, 26 York Street, London W1U 6PZ | 0845 519 8510 | |
| TelecomHelp Ltd | Electroline House, 15 Lion Road, Twickenham TW14JH | 02070428121 | |
| TelecomIQ Ltd | Upper Level, Turnbridge Mills, Quay Street, Huddersfield HD1 6QT | 033 0990 0000 | https://www.numbersiq.co.uk/ |
| Telecomms Direct Ltd | 92-94 Stamford Hill, London N16 6XS | 0330 320 1111 | |
| Telecommunications Cymraeg Ltd | 18 High Street, Bala LL23 7AG | 0808 165 0004 | |
| Telecommunications Management Ltd | Network HQ, 508 Edgware Road, London NW9 5AB | 02089555657 | |
| Telecommunications Managements Ltd | |||
| Telecoms 2000 Ltd | |||
| Telecoms Bridgend Ltd | Sandringham House, Australian Terrace, Bridgend CF31 1LY | 0845 293 7380 | |
| Telecoms Consortium Ltd | https://www.telecomsconsortium.com/ | ||
| Telecoms Group International Ltd | 20-22 Wenlock Road, London N1 7GU | 01618509669 | |
| Telecoms Network Ltd | 1 Raynham Road, Bishops Stortford, Hertfordshire CM23 5PB | 0870 770 2424 | |
| Telecoms Savings Ltd | 22 Hook, Swindon SN4 8EA | 01793851589 | |
| Telecoms Scotland Ltd | 12 Oronsay Cres, GLASGOW G60 5NN | 07743424243 | |
| Telecoms World PLC | Unit 2 Kingfisher House, Crayfields Business Park, New Mill Road, Orpington, Kent BR5 3QG | 0800 043 0800 | https://www.telecomsworldplc.co.uk/ |
| Telecoms World Direct Ltd | 2 Kingfisher House, Crayfields Business Park New Mill Road, Orpington, Kent BR5 3QG | ||
| Telecomsbroker Ltd | 274 Banbury Road, Oxford OX2 7XY | 0844 822 7001 | |
| Telecomsgb | https://www.telecomsgb.co.uk/ | ||
| Teleconnect Service Ltd | 2 Deanhurst Park, Gelderd Road, Gildersome, Leeds LS27 7LG | 0113 217 2030 | |
| Teleconx LTD | 71-75 Shelton Street, London WC2H 9JQ | 01303261682 | |
| Teledesign Solutions Ltd | 137 St Pauls Wood Hill, Orpington, Kent BR5 2SS | 020 7047 1000 | https://www.teledesignsolutions.co.uk/ |
| Telediscount | https://www.telediscount.co.uk/ | ||
| Teleeast Broadband UK | 14 Horsecroft Road, Edgware HA8 0PD | 08000096372 | |
| Teleena Netherlands | The "Merwestein" Building, Krijtwal 29, 3432 ZT Nieuwegein, The Netherlands | 078 8559 2285 | https://teleena.com/ |
| Telefone Rescources (UK) Ltd | Unit F1, RD Park,, Stephenson Close, Essex Road, Hoddesdon EN11 0BW | 01992 464745 | |
| Telefonic Ltd | 38 Layfield Road, London NW4 3UG | 08008 491550 | |
| Telefónica Europe PLC | 260 Bath Road, Slough SL1 4DX | 01753 628835 | https://www.telefonica.com/ |
| Telefónica UK Ltd | 260 Bath Road, Slough SL1 4DX | 01753 628835 | https://www.o2.co.uk/ |
| TeleMagic Ltd | 44 Stepney St, Llanelli SA15 3TR | 01554 535455 | https://www.tm.net.uk/ |
| Telemar UK | 5 Tillingbourne Court, Dorking Business Park, Station Road, Dorking, Surrey RH14 1HJ | 01306 883 355 | |
| Telemat | The Telematic Centre, Business Park, Newcastle Emlyn SA38 9DB | 02139 712 345 | |
| Telemax Ltd | 1st Floor Federation House, 36-38 Rockingham Road, Ketting, Northampton NN16 8JS | 0870 7561411 | |
| Telemint Communication Ltd | 7 Cravenwood Road, Reddish, Stockport SK5 6PQ | 0161 738 1406 | |
| Telemix Ltd | Aston House, Cornwall Avenue, London N3 1LF | https://telemix.co.uk/ | |
| Telency Ltd | 6 Manor Court, Barnes Wallis Road, Fareham, Hants PO15 5TH | 033 0088 0545 | https://telency.com/ |
| TeleNeo | http://www.teleneo.net/ | ||
| Telephone Box Ltd | Berrycentre, Berrylands, KT5 8LS | https://www.telephonebox.net/ | |
| Telephone Consultants | 5 Rugby Gardens, Ovenden, Halifax HX3 5SP | 0800 977 5420 | |
| Telephone Europe Ltd | Centre Court, 1301 Stratford Road, Birmingham B28 9HH | 0800 652 1900 | |
| Telephone Number Solutions Ltd | 1st Floor, 33 Nork Way, Banstead, Surrey SM7 1PB | 0208 336 0800 | |
| Telephone Systems Direct | https://www.telephonesystemsdirect.co.uk/ | ||
| Telephone Systems Installations Ltd | 151 Business Design Centre, 52 Upper Street, London N1 0QH | 08081789595 | |
| Telephone Technology Ltd | The Raleigh Suite, The Mohan Business Centre, Tamworth Road, Long Eaton, Nottingham NG10 1BE | 0115 8554929 | |
| Telephony Services Ltd | 13-15 Hunslet Road, Leeds LS10 1JQ | 0113 320 3040 | https://aql.com/ |
| Teleport Networks | |||
| Teleproject UK Ltd | Business & Technology Centre, Bessemer Drive, Stevenage SG1 2DX | 0800 316 8605 | https://www.teleproject-uk.com/ |
| Tele-Response Ltd | F21 Main Building, Kestrel Court, Harbour Road, Portishead, Bristol BS20 7AN | 01173751182 | |
| Telesave | 5 Commerce Park, Brunel Road, Theale, Berkshire RG7 4AB | 0800 066 4000 | http://www.telesave.co.uk/ |
| TeleSavers | https://www.telesavers.co.uk/ | ||
| Telesen | 20 - 22 Wenlock Road, London N1 7GU | 02034341030 | |
| Telesign Mobile Ltd | 2nd Floor, Kingsgate House, 115 High Holborn, London WC1V 6JJ | 0870 231 7777 | https://www.telesign.com/ |
| Telesis Ltd | 2, Thomas, Holden St, Bolton BL2 QG | ||
| Telesoft Technologies Ltd | Observatory House, Blandford, Dorset DT11 9LQ | 01258 480880 | https://telesoft-technologies.com/ |
| Telestream Communications UK Ltd | Woodside Lodge, Cobbetts Hill, Weybridge, Surrey KT13 0UA | ||
| Telestunt | PO Box 12516, 1100 AM Amsterdam, Netherlands | https://www.telestunt.co.uk/ | |
| TeleSurf Ltd | Suite 1, 3rd Floor, 11-12 St James's Square, London SW1Y 4LB | 033 0201 7777 | https://www.tele-surf.co.uk/ |
| Telet Research (N.I.) Ltd | Forsyth House, Cromac Square, Belfast, Antrim BT2 8LA | ||
| Teletop | https://www.teletop.co.uk/ | ||
| TeleWare PLC | TeleWare House, York Road, Thirsk, North Yorkshire YO7 3BX | 01845 526830 | https://www.teleware.com/ |
| TeleWare Group PLC | TeleWare House, York Road, Thirsk, North Yorkshire YO7 3BX | 01845 526830 | https://www.teleware.com/ |
| Teleworx Voice and Data Ltd | Office 7, 35 - 37 Ludgate Hill, London EC4M 7JN | 02033012501 | |
| Telguard Ltd | Suite 2, Stanley House, Kelvin Way, Crawley RH10 9SE | 01306710120 | |
| Telia Carrier UK Ltd | Telephone House, 69-77 Paul Street, London EC2A 4NW | 07789 994 089 | |
| Telis Ltd | Foresters Hall, 25-27 Westow Street, London SE19 3RY | 020 8819 5375 | |
| Telkom Celular Services Ltd | BBIC Building, Snydale Road, Choworth, Barnsley S72 8RP | 01226 718 193 | |
| Tellemachus Ltd | Woodside Business Park, Whitton Road, Redmarshall, Stockton-On-Tees TS21 1EN | 01740 631 540 | |
| Telnergy Ltd | Basepoint Business Centre, Aviation Park West, Christchurch, Dorset BH23 6NX | 0845 1808 088 | |
| Telnet International Ltd | 16 Anning Street, London EC2A 3HB | 0370 770 1000 | http://www.telnet-international.com/ |
| Telnetuk Ltd | DYKE END COTTAGE, MEDEIRA ROAD, LITTLESTONE, ROMNEY TN28 8QX | 07951154574 | |
| Telnyx UK Ltd | 71-75 Shelton Street, London WC2H 9JQ | +353 1 960 5860 | https://telnyx.com/ |
| Telserv B.V. | Printerweg 18, Amersfoort 3821AD | 031337440744 | |
| Telserve | Unit B Stafford park 6, Telford TF3 3AT | 03332122207 | |
| Telsis Systems Ltd | 6 Manor Court, Barnes Wallis Road, Fareham, Hants PO15 5TH | 01489 760000 | https://www.telsis.com/ |
| Telstra Ltd | 2nd Floor, Blue Fin Building, 110 Southwark Street, London SE1 0TA | 020 7965 0000 | https://www.telstraglobal.com/ |
| Teltec Communications Ltd | 78 Five Ash down, Uckfield TN223AP | 07739743010 | |
| Teltech Communications | Weston Wood House, Bedworth Road, Bulkington, Bedworth CV12 9JA | 02476494330 | |
| TelXL Ltd | Roseway, Icknield Street, Birmingham B48 7EW | 037 0067 0670 | https://www.telxl.com/e |
| Temple Comms Ltd | 2nd Floor, 970 North Circular Road, London NW2 7JR | 0844 770 4567 | |
| Tempserve Ltd | Innovation House, Innovation Way, Sandwich, Kent CT13 9FF | 01227643001 | |
| Tempura Communications Ltd | Tempura House, Prisma Park, Berrington Way, Basingstoke, Hampshire RG24 8GT | 0844 736 4040 | |
| Ten Ten Systems Ltd | 4 Abbey Square, Chester CH1 2HU | 01244 408990 | |
| Tendit Services Ltd | suite 9, the gables, Fyfield road,, Ongar, CM50GA | 02039126888 | |
| teqdepot | Lombard Business Park, Unit 19, 8 Lombard Road, Wimbledon, London SW19 3TZ | 02080900687 | |
| Terahost Ltd | Technology House, Lissadel Street, Manchester M6 6AP | 0161 327 2829 | |
| Teranet-Cloud Ltd | 22 Hawthorn Avenue, London N13 4JT | 0208 882 2650 | |
| Teratel Uk Ltd | International House, 64 Nile Street, London N1 7SR | 0034886660554 | |
| Terias Consulting Ltd | Unit 18, 6 Violet Road, London E33QH | 02033279480 | |
| Terinea Ltd | Unit 14 Napier House, 1 Elva Way, Bexhill TN39 5BF | 01424229950 | |
| Ternion Technologies Ltd | 18 Keble Road, Maidenhead SL6 6BA | 07775990723 | |
| Terrible Talk Great Britain Partnership | The South Vaults, Bath BA1 1JB | 0800 810 1008 | |
| Terry Froy | 72 Boston Road, Spilsby, Lincolnshire PE23 5HH | +44 (0)1790 788219 | |
| Tesla Dynamic Ltd | 86-90 Paul Street, London EC2A 4NE | 020 3599 9999 | https://www.teslaone.com/ |
| Tesla Dynamic Ltd | 86-90 Paul Street, London EC2A 4NE | 020 3599 9999 | https://teslaone.com/ |
| Test Valley Telecom | 11 Union Street, Andover, Hampshire SP10 1PA | 01264 406 406 | |
| Test2date B.V | Ypelobrink 150, 7544 CG Enschede, Netherlands | ||
| TET IP Ltd | Laser House, 132 Goswell Road, London EC1V 7DY | 020 7553 9951 | |
| Tetcom Network Services Ltd | 64 London Road, Southampton SO15 2AH | 08445 677667 | |
| Tetnet Communication Services LLP | Unit 3 Yeoman Business Park, Test Lane, Southampton SO16 9JX | 08445677667 | |
| Tetrabyte Ltd | Portland Place, Hastings, East Sussex TN34 1QN | 0800 160 1066 | |
| Texaport Ltd | Techcube, 1 Summerhall, Edinburgh EH9 1PL | 03301222345 | |
| Texnet-It Ltd | UNIVERSAL HOUSE, 6 - 8 WOLSEY ROAD, ASHFORD TW15 2RB | 01784 253600 | |
| Text Social | Suite 17, Chandos Business Centre, 87 Warwick Street, Leamington Spa CV32 4RJ | 08432899194 | |
| TextMagic Ltd | Salisbury House, Station Road, Cambridge CB1 2LA | 0845 299 4125 | https://www.textmagic.com/ |
| TFM Networks Ltd | Advanced Technology Innovation Centre, Loughborough University Science & Enterprise Park, Oakwood Drive, Loughborough LE11 3QF | 01844 296530 | |
| TGC Computers Ltd | 6 Lister Park, Green Lane, Featherstone WF7 6FE | 01162999549 | |
| TGL Services (UK) Ltd | 32 St James's Street, London SW1A 1HD | 020 3301 9331 | |
| Thales UK Ltd | Unit 4 Carolina Court, Wisconsin Drive, Doncaster, South Yorkshire DN4 5RA | 0800 232 1566 | |
| Thames Information Systems Ltd | 5 David Mews, LONDON SE10 8NJ | 02088586651 | |
| Thames Network Ltd | unit 50 new lydenburg street, New Lydenburg Commercial Estate, London, London SE7 8NE | 07961847252 | |
| Thames Valley Chamber Telecom | http://www.scottishchamberstelecom.co.uk/ | ||
| Thane Group Ltd | 39 Kirby Road, Portsmouth PO2 0PF | 03333055500 | |
| The Airtime Group | |||
| The Big Empire LTD | 71-75 Shelton Street, london WC2H 9JQ | 07983784829 | |
| The Briars Group Ltd | Standard House, Weyside Park, Catteshall Lane, Godalming GU7 1XE | 01483 413 400 | |
| The Business Club.Com Ltd | 66 Cross Street, Cheshire M33 7AN | 07940411116 | |
| The Business Connection (Services) Ltd | Ground Floor, 6 Webster Court, Carina Park, Warrington, Cheshire WA5 8WD | 01925 712483 | |
| The Business Telecom Advisor Ltd | 63 Brandon House, Jacobs Wells Road, Bristol BS8 1DU | 01179112992 | |
| The Calls Warehouse Ltd | 23 New Mount Street, Manchester M4 4DE | 0161 212 7373 | https://www.thecallswarehouse.com/ |
| The Carphone Warehouse Ltd | Unit 23, Branksome Business Park, Bourne Valley Road, Poole BH12 1DW | 0800 130 0688 | |
| The Cellphone Store Ltd | 6 Fishergate Court, Christian Road, Preston, Lancashire PR1 8QF | 020 8457 2470 | |
| The Cent.Re Group Ltd | Royal Quays Business Centre, CAI Building, Coble Dene, North Shields NE29 6DE | 0191 695 1000 | |
| The Charity Line Community Interest Company | |||
| The Comms Company | https://www.thecommscompany.com/ | ||
| The Comms Geeks Ltd | 10 Stadium Business Court, Millennium Way, Derby DE24 8HP | 01332300559 | |
| The Comms Guys | 310 E East Wing, Sterling House, Langston Road, Loughton, Essex IG10 3TS | 020 3195 2224 | |
| The Communications Company UK | https://www.comsco.com/ | ||
| The Complete Communication Company | https://www.complete-comms.co.uk/ | ||
| The Computer Clinic Bicester LTD | 45 wedgwood road, bicester OX264UL | 01869320646 | |
| The Computer Doctors Ltd | 1 Mallard Court, Mallard Close, Earls Barton, Northampton NN6 0JF | 01604 411444 | |
| The Computer Solutions People Ltd | Trafalgar House, 223 Southampton Road, Portsmouth PO64PY | 02393190290 | |
| The Conservation Volunteers | Sedum House, Mallard Way, Doncaster DN4 8DB | 01422 400242 | |
| The Cost Consultancy Ltd | Woodlands, Blackmoor Road, Abbots Leigh, Bristol BS8 3RH | 0117 247 0365 | |
| The Dental Imaging Company Ltd | 27 Beaconsfield Road, Portslade, East Sussex BN41 1XA | 0845 269 2690 | |
| The Digital Network | 35 Falkirk Road, Bonnybridge FK4 1BG | 01324812121 | |
| The Duncan Reid Consultancy | The Old School House, 188 Liscard Road, Wallasey CH44 5TN | 0151 558 1020 | |
| The Excell Group PLC | 9 Lower John Street, London W1F 9DZ | 020 7292 8600 | https://www.excellgroup.com/ |
| The Final Step | Tavistock House North, Tavistock Square, London WC1H 9HR | 020 7572 0000 | |
| The Fourth Utility Ltd | Deanway Business Park, Manchester Road, Handforth SK9 3HW | 03300 880044 | |
| The Gallery Partnership LTD | 4th floor 150 Borough High Street, London SE1 1LB | 02070962800 | |
| The Good Broadband Company Ltd | C4di, 47 Queen Street, Hull HU1 1UU | 07768821816 | |
| The Hawkify Group Ltd | The Workstation, 15 Paternoster Row, Sheffield S1 2BX | 0114 360 0300 | |
| The Hogan Group Ltd | Unit 14A RCM Business Centers, Dewsbury Road, Ossett, Wakefield WF59ND | 01924562204 | |
| the 'HUBB' | Stone Creek House, Cherry Cobb Sands, Hull HU12 9JX | 01964 207000 | |
| The Internet Business Ltd | Ormeau Road, Belfast BT7 1EB | 02890 33 11 22 | |
| The IT Cloud (London) Ltd | 409 Southbank House, Black Prince Road, London SE1 7SJ | 0845 217 9637 | |
| The IT Department Solutions Ltd | Eastwing, 3 Lorne Park Road, Bournemouth BH1 1AH | 01202316008 | |
| The IT People (Services) Ltd | Caxton Point, Caxton Way, Stevenage SG12XU | 01438355325 | |
| The IT Point Ltd | 5 Roundwood Lane, Harpenden AL5 5AT | 01582 380050 | |
| The Laptop Fixers Ltd | 348-352 Ringwood Road, Poole BH14 0RY | 01202 805000 | |
| The Link Stores Ltd | The Link Stores Ltd, Wellington Street, Slough SL1 1YP | 0113 272 2000 | |
| The Logic Ltd | 1 Michaelson Square, Livington, West Lothian EH54 7DP | 01506 533100 | |
| The London Computer Service and Maintenance Ltd | CK International House Business Centre, 1-6 Yarmouth Place, London W1J 7BU | 02036976710 | |
| The London Photocopying Co Ltd | Unit 17 Kingsmill Business Park, Chapel Mill Lane, Kingston KT1 3GZ | 020 8247 9950 | |
| The Magic Mouse Ltd | 18 Margaret street, Brighton BN2 1TS | 01273 311595 | |
| The Midcounties Co-operative Ltd | 5 Millhouse, Worcester Road, Chipping Norton, Chipping Norton OX7 5XL | 01608647223 | |
| The Mobile Point Ltd | 189-197 Wincolmlee, Hull, East Yorkshire HU2 0PA | 01482 420170 | |
| The National Business Network Ltd | Buidling 7, Rainbow Business Village, Trout Road, West Drayton UB7 7XT | 0870 870 6650 | https://www.tnbn.co.uk/ |
| The Network Union | Suite 207, Keswick Hall, Norwich NR4 6TJ | 0333 202 1011 | |
| The Networking People (NorthWest) Ltd | TNP Ltd. Infolab21, Lancaster University, Bailrigg, Lancaster LA1 4WA | 0845 680 0659 | |
| The Number UK Ltd | Sterling House, Malthouse Avenue, Cardiff Gate Business Park, Cardiff CF23 8RA | 029 2054 8000 | https://www.118118money.com/ |
| The Oakley Technology Group Ltd | Suite 2, 2 Manchester Road, Wilmslow, Manchester SK9 1BG | 03301331103 | |
| The Old Tack Room | Home Farm House, School Lane, Normanton Le Heath LE67 2TH | 0845 330 1445 | |
| The One Point Ltd | The One Point Buildings, 189-197 Wincolmlee, Hull HU2 0PA | 01482 420150 | |
| The Oxford Knowledge Company | Sandford Gate, East Point Business Park, Sandy Lane West, Oxford OX4 6LB | 01856 322 100 | |
| The Panas Group of Companies Ltd | 13 Whitchurch Lane, Edgware, Middlesex HA8 6JZ | 02089513304 | |
| The PC Clinic (UK) Ltd | 46a Main Street, Broughton Astley, Leicestershire LE9 6RD | 01455 289 820 | |
| The PC Doctor.co.uk Ltd | Stonebeck, Market Place, Longnor, Staffordshire SK17 0NT | 0845 166 1160 | |
| The PC People | 8 Homeground, Buckingham MK18 1UH | 01280 814684 | |
| The People's Information Technology Ltd | 21, Perlethorpe Drive, Nottingham, Nottinghamshire NG4 4GJ | 07412827352 | |
| The Phone Company Ltd | TPC House, 954 Yeovil Road, Slough, SL1 4NH | ||
| The Phone Co-op | 5 The Millhouse, Elmsfield Business Park Worcester Road Chipping Norton Oxon, OX7 5XL | 0845 458 9000 | https://www.thephone.coop/ |
| The Primo Partnership | 83 Ducie Street, Manchester M1 2JQ | 0330 0104 331 | |
| The Real Pbx Ltd | Level 30, The Leadenhall Building, 122 Leadenhall Street, London EC3V 4AB | 0800 069 8941 | https://www.therealpbx.co.uk/ |
| The Red Penguin Group Ltd | 29 Bridgford Road, West Bridgford, Nottingham NG2 6AU | 01159851955 | |
| The Redwood Group And Associates Ltd | Unit 3 Olympic Court, Boardmans Way, Whitehills Business Park, Blackpool FY4 5GU | 01772 910916 | |
| The REMIDI Group Ltd | 514 Wimborne Road, Ferndown BH22 9NG | 01202611006 | |
| The Samuel Oscar Company Ltd | 23, Colonial Drive, Northampton NN4 0BL | 01604 705330 | |
| The Screen Surgery Ltd | 34 Star Hill, Rochester, Kent ME1 1XB | 07826916088 | |
| The Service Desk Group Ltd | International House, 24 Holborn Viaduct, London EC1A 2BN | 020 8148 4698 | |
| The Sim Guys Ltd | Brookmans Park Teleport, Gt North Road, Brookmans Park, Hatfield AL9 6NE | 07722777227 | |
| The Sim Works Ltd | Kemp House, 160, City Road, London EC1V 2NX | 07921 700481 | |
| the softnet | 54 grasscroft, northampton NN2 8TR | 07709451959 | |
| The Staffordshire IT Co. | 10 Canterbury Drive, Wolverhampton WV6 7XA | 07495312015 | |
| The Tech Gurus Ltd | 60 Lakeside Place, London Colney, St Albans AL2 1PZ | 01727 807 285 | |
| The Technical Support Department Ltd | 2 Hillcrest Rise, Buckingham Industrial Park, Buckingham MK18 1SL | 01280 817 616 | |
| The Technologies Group Ltd | Equis House, 4 Eastern Way, Bury St Edmunds, Suffolk IP32 7AB | 01284 778737 | |
| The Telecom Recycling Shop Ltd | Unit 3 Phoenix Parade, Artex Avenue, Rushington, Little Hampton, West Sussex BN16 3LN | 0800 021 4433 | |
| The Telecoms Audit Bureau Ltd | Westwood House, 78 Loughborough Road, Quorn, Leicestershire LE12 8DX | 0871 426 6976 | https://www.tariffaudit.com/ |
| The Telephone Network | 65 Pembroke Road, Bristol BS8 3DW | ?? | http://www.tphone.com/ |
| The UK Pure Offices Ltd | UNIT 3 EAST END COURT, CLEVEDON BS21 6QY | 08006344733 | |
| The Union Telecom Company | The Old School, Asthall, Nr Burford, Oxon OX18 4HW | 01993 822 893 | |
| The Utility Factory Ltd | Office 34, 67-68 Hatton Garden, London EC1N 8JY | 0121 663 0162 | |
| The Very Good Telephone Company Ltd | 22 Rainow Road, Macclesfield, Cheshire SK10 2PF | 01625 614458 | |
| The VoIp Centre Ltd | Oldbury Wells, Bridgnorth WV16 5JB | 01746250010 | |
| The Weston Group | https://www.thewestongroup.co.uk/ | ||
| The Word Direct Ltd | 1 Denvale Trade Park, Gladames Place, Cardiff CF24 5AA | 02920 445 747 | |
| The Wysi Partnership | Suite 14, Thatcham House, Turners Drive, Thatcham RG19 4QD | 0330 122 2152 | |
| The Yaboo Company Ltd | 20-22 Station Road, Kettering, Northamptonshire NN15 7HH | 01536 314 900 | |
| TheCloud Ltd | The Granary, Cams Hall Estate, Fareham PO16 8UT | 01329 559900 | |
| Them Connect Ltd | 1-5 Clerkenwell Road, London EC1M 5PA | 03333441014 | |
| Them Digital Assistance Ltd | 1-5 Clerkenwell Road, London EC1M 5PA | 020 7490 2163 | |
| Think Group | Hanover House, Timberyard Lane, Lewes, East Sussex BN7 2AU | 0370 758 4465 | http://www.thinkgroup.co.uk/ |
| Think Seven Ltd | 119 Stockport Road, Marple, Stockport SK6 6AF | 0161 241 5280 | |
| Think Systems UK Ltd | 75 Stour Street, Canterbury CT1 2NR | 01227808040 | |
| Think Telecom Ltd | 2nd Floor, County House, 35 Earl Street, Maidstone ME196BF | 01733522931 | https://www.thinkitsimple.com/ |
| Thinking Fish Ltd | Concorde House, Grenville Place, London NW7 3SA | 02071002222 | https://www.thinking.fish/ |
| Third Party Formations Ltd T/A The Company Warehouse | 2nd Floor, 43 Broomfield Road, Chelmsford CM1 1SY | 01245 492777 | https://www.thecompanywarehouse.co.uk/ |
| Thistle Networks Ltd | 27 East Stewart Street, Coatbridge ML5 3RJ | 01236 607624 | |
| Thompson Audio Visual Communications Ltd | Thompson House, Gorsebrook Rd, Wolverhampton WV106JD | 01902658822 | |
| Thomson Communications UK Ltd | 56 Captain Street, Greenock, Renfrewshire PA15 4LQ | 01475 788200 | |
| Thornet | The Crossings, Tytherington, Wotton Under Edge GL12 8UH | 01454 411248 | |
| Thorntons Communications Ltd | 3 Park Lane, Cheam, Surrey SM3 8BN | 01737377299 | |
| Three | https://www.three.co.uk/ | ||
| Three Cherries Ltd | The Stables, Clevedon Hall Estate, Victoria Road, Clevedon BS21 7SJ | 0845 123 5333 | |
| Three Ireland (Hutchinson) Ltd | 28 29 Sir John Rogersons Quay, Dublin | 035316049458 | |
| TIC (The Independent Choice) Ltd | 43 Temple Row, Birmingham B2 5LS | 08702 430 980 | |
| Tic Toc Tech Ltd | 28 Coronation Road, Cardiff CF14 4QY | 02920006317 | |
| Tickett Enterprises Ltd | Tickett Enterprises, 5 Manners Corner, Southend-on-Sea SS2 6QR | 02035192737 | |
| Tidal Communications Ltd | Tidal House, 131 Minehead Way, Stevenage SG1 2JL | 07763932481 | |
| Tidy Business Ltd | 71b High Street, Stony Stratford, Milton Keynes MK11 1AY | 01908 760 017 | |
| Tiedata Ltd | 11 High Holborn Road, Codnor Gate Business Park, Ripley DE5 3NW | 01773 513513 | |
| Tiger Communications PLC | 77-79 Christchurch Road, Ringwood, Hants BH24 1DH | 01425 891000 | https://www.tigercomms.com/ |
| TigerNet Solutions Ltd | 1 Barnes Wallis Court, Wellington Road, High Wycombe, Bucks HP12 3PS | 01494 895600 | |
| Tim Wright Computer Services | Howards Close, Trunch, Norfolk NR28 0PX | 01263 511 301 | |
| timclarke | 68 Crown Road, Shoreham-by-Sea BN436GE | 07803197954 | |
| Time Communication Solutions Ltd | Units 1-3 Newmarket Mews, Castle Gate, Wakefield WF3 4AL | 0113 205 9640 | |
| Time Telecom | https://www.timetelecom.co.uk/ | ||
| Timeless IT Business Ltd | Chapel House, 21a Woodthorpe Road, Ashford TW152RP | 01784421713 | |
| Timeslice Ltd | Building N1, Chorley Business & Technology Centre, East Terrace,Euxton Lane, Chorley PR7 6TE | 08450945899 | |
| Timewade Ltd | Skyways Business Park, Exeter Airport, Clyst Honiton, Exeter EX5 2UL | 01392 367676 | |
| Timico Ltd | Brunel Business Park, Jessop Close, Newark, Notts NG24 2AG | 0844 871 8100 | https://www.timico.co.uk/ |
| Timico Partner Services Ltd | Carnac Lodge, Cams Estate, Fareham, Hants PO16 8UJ | 01329 226722 | https://www.newnet.co.uk/ |
| Tin Can Comms Ltd | The Admiral Building, Maple Leaf Estate, Bloxwich Lane, Walsall WS2 8TF | 0800 083 0900 | |
| Tinder Corporation Ltd | Suite F5 St Georges Business Park, Castle Road, Sittingbourne, Kent ME103TB | 08452004085 | |
| Tinkle Telecom Ltd | Carlton House, 3-5 Alma Road, Headingley, Leeds LS6 2AH | 03303800352 | |
| Tipicall Ltd | 66 Chiltern Street London W1U 4JT | 020 3328 4500 | https://www.talktalkbusiness.co.uk/ |
| Tiptop Information Technology Ltd | Churchill House, 120 Bunns Lane, Mill Hill NW7 2AS | 02071485111 | |
| Tiptop Telecom Ltd | Tiptop Telecom Ltd, 71-75, Shelton Street, London WC2H 9JQ | 07557157157 | |
| Tismi BV | Postbus 19092, 3501DB Utrecht, Netherlands | +31.20.7012345 | https://www.tismi.com/ |
| Titan Technology Ltd | |||
| Tknowit Ltd | 23 The Gallops, Norton, Malton, North Yorkshire YO17 9JU | 01653 908 069 | |
| tlbtechnol | 32 Fairfax Avenue, Harrogate HG2 7RF | 01423226495 | |
| TLG Services | Vale Farm, Monkwood SO24 0HD | 01962 772 030 | |
| TM Solutions Ltd | Monarch House, Abingdon Science Park, Barton Lane, Abingdon OX14 3NB | 01235 526 600 | |
| TMB Systems Ltd | Unit 10 Silver Business Park, Airfield Way, Christchurch, Dorset BH23 3TA | 01202 488771 | |
| TMC Telecom Ltd | Unit 21 Stockwood Business Park,, Stockwood, Redditch B96 6SX | 01527 868400 | http://tmc-telecom.co.uk/ |
| TMcom Ltd | Farthing Cottage, Wattas Green, Chearsley, Bucks HP18 0DD | 0844 993 0882 | |
| T-Mobile | https://www.ee.co.uk/ | ||
| TN Tel LTD | Woodhall Cottage, Tonbridge Road, Shipbourne TN11 9PA | ||
| Tnl Systems Ltd | Unit 2 Chiltern Court, Asheridge Road, Chesham HP5 2PX | 03448094996 | |
| Toffoo Ltd | Providence House, Suite 750, Fareham, Hampshire PO14 9RX | 0844 544 7777 | |
| Together Technology Ltd | 5 Argosy Court, Coventry CV3 4GA | 01635 780000 | |
| Together Telecom Ltd | Kirkgate House, Amy Johnson Way, Blackpool Business Park, Blackpool FY4 2PR | 0843 178 3005 | |
| Togethia Ltd | The Red Barn, Thornend, Chippenham SN15 4BX | 01249 461548 | |
| Toggletech Ltd | The Old Workshop, Station Road, Nailsworth GL6 0AJ | 01453 835791 | |
| Toople.com Ltd | Grenville Court, Britwell Road, Burnham, Buckinghamshire SL1 8DF | 0800 049 9499 | https://www.toople.com/ |
| Top Gear Media Ltd | Upper Level, Turnbridge Mills, Quay Street, Huddersfield HD1 6QT | 0114 466 1010 | https://www.topgearmedia.co.uk/ |
| Topland Communications Ltd | Hamnett House, Gibbet Street, Halifax, West Yorkshire HX2 0AX | 01422 418418 | |
| Topup2Talk | https://www.talktalk.co.uk/ | ||
| TopUpNow | https://www.topupnow.co.uk/ | ||
| Torbay Telecom LTD | 54a Palace Meadow, Devon TQ13 0PJ | 01803 200400 | |
| Torix Managed Services Ltd | 11a Wessex Road Ind Est, Bourn End SL8 5DT | 01628 914914 | |
| Torn Bag Ltd | Burton Varley LLP, Adamson House, Manchester M20 2YY | 0161 710 3182 | |
| Total Av Control Ltd | Unit 8, Enterprise Estate, Moorfield Road, Guildford GU1 1RB | 01483350035 | |
| Total Business Computers Ltd | Albany House, Albany Road, Gateshead NE8 3DG | 0191 490 7005 | |
| Total Comms UK Ltd | Office 10, 117c Liverpool Road, 117c Liverpool Road, Cadishead, Manchester M44 5HG | 0808 165 1234 | http://www.totalcommsuk.co.uk/ |
| Total Computer IT Services Ltd | 1 Rectory Road, Newhaven BN9 0RA | 01273987926 | |
| Total Computer Networks Ltd | 1 Brooklands Court, Northants NN15 6FD | 0845 647 1000 | |
| Total Computer Solutions Ltd | Hanley Court, Tenbury Wells, Tenbury Wells, WORCS. WR15 8QT | 01886853996 | |
| Total Computers & Accessories Ltd | Westfield House, Bratton Road, Westbury BA13 3EP | 0+441373864627 | |
| Total Distribution Ltd | Unit 7 & 8 Magreal Industrial Estate, Freeth Street, Birmingham B16 0QZ | 0121 454 8444 | |
| Total Group International Ltd | Unit 5 Kinsbourne Court, 96-100 Luton Road, Harpenden, Hertfordshire AL5 3BL | 0845 688 5060 | https://www.totalgroup.co.uk/ |
| Total IT Management | 1-6 Yarmouth Place, London W1J 7BU | 020 3327 2700 | |
| Total IT Technology Solutions | Cranfield Technology Park, Cranfield, Bedfordshire MK43 0BT | 08448843021 | |
| Total Network Solutions Europe Ltd | Unit 24 Brierley Business Centre, Mirion Street, Crewe, Cheshire CW1 2AZ | 01270 254 606 | |
| Total Tech Ltd | Unit 12 - Haverfordwest Business Centre, Merlins Court, Winch Lane, Haverfordwest SA611SB | 01437888050 | |
| Total Telecom Ltd | 19 Hazel End, Swanley, Kent BR8 8NU | 0330 0432 161 | |
| Total Telecommunications Ltd | Telecoms House, 296 High Street, Cheltenham, Glos GL50 3HQ | 01242 246702 | |
| Total Web Solutions Ltd | Total Web Solutions Limited, 12 Riverview, The Embankment Business Park, Heaton Mersey, Stockport, Cheshire SK4 3GN | 0844 856 0681 | https://www.totalwebsolutions.com/ |
| Totality Systems Ltd | Glebe House, 14 Mill Road, GREAT TOTHAM, Essex CM9 8DH | 01621 834360 | |
| Totally Converged Solutions Ltd | Unit 9, Shenley Pavillions, Milton Keynes MK5 6LB | 01908768340 | |
| Totel Ltd | 398 Uttoxeter New Road, Derby DE22 3HX | 01332 866 661 | |
| Totem Communications Ltd | Hawk House, Hawksworth Road, Central Park, Telford TF2 9TU | ||
| Totem Consultants Ltd | 5 Coxley Dell, Horbury, Wakefield WF4 5LF | 07791114641 | |
| E7even UK Ltd | 6th Floor 8 Exchange Quay Salford Manchester M5 3EJ | 0161 932 1176 | http://www.touchtele.com/ |
| Touch Telecommunications Ltd | 7 Portesbery Road, Camberley GU15 3TA | 07742607007 | |
| Touch Voice and Data Ltd | Unit 14, Roundabout Court, Bedwas Industrial Estate, Caerphilly CF83 8FS | 07508 840 157 | |
| Touchbase Conexion | 137-144 High Holborn, LONDON WC1V 6PL | 0207 8787 000 | |
| Touchbase UC Ltd | 9a Devonshire Square, London EC2M 4YN | 020 7878 7000 | |
| Touchtec Technology Ltd | Castle House, Castle Hill Avenue, Folkestone, Kent CT20 2TQ | 02038823200 | |
| Town & Country Communications LLP | 346/348 Charminster Road, Bournemouth, Dorset BH8 9RX | 01202 514 444 | |
| Town & Country Telecommunications Ltd | 104 Yorktown Road, Sanhurst, Berkshire GU47 9BH | 01252 860888 | |
| Townely Network Solutions UK | https://www.townley.co.uk/ | ||
| Townley Communications plc | The Pavilions, Chester Business Park, Chester CH4 9QH | 01244 659 659 | |
| TPCS Ltd | 7-3-3 Cameron House, White Cross, Lancaster LA1 4XF | 01524 389 900 | |
| Track Eleven | 14–16 Sussex Road, Haywards Heath, Surrey RH16 4EA | 01444 226000 | https://www.trackeleven.com/ |
| Tracr Ltd | 20-22, Wenlock Road, London, London N1 7GU | 07432604656 | |
| Tradaweb Ltd | 65 Ermine Street, Great Stukeley, Huntingdon, Cambridgeshire PE28 4AG | 0330 111 7009 | |
| Tradecor | https://tradecor.co.uk/ | ||
| Tradecor Solutions Ltd | 86-90 Paul Street, London EC2A 4NE | 02083251973 | |
| Trademark Technologies Group Ltd | 91b High Street, Bangor BT20 5BD | 02891246520 | |
| Tranquil IT Solutions (South) Ltd | 5 High Street, Bishops Stortford, Hertforshire CM23 2LS | 020 3002 0616 | |
| Transaction Network Services (UK) | Marketing Department, Sheffield Business Park, Europa link, Sheffield S9 1XU | 0114 292 0200 | |
| Transcat Telecom Ltd | Station Court, Station Road, Great Shelford, Cambridge CB22 5NE | 01223 551 000 | |
| Transcendit Ltd | C10 Marquis Court, Team Valley, Gateshead, Tyne & Wear NE11 0RU | 0191 482 0444 | |
| Transform Systems Ltd | Unit 1, Stoke on Trent ST1 4DP | 01782694460 | |
| Transglobal Europe Ltd | |||
| Transglobal Telecommunications | 65 College Road, Maidstone Kent ME15 6SX | 01622 774 900 | |
| Transglobal UK Ltd | The Communications Centre, 65 College Road, Maidstone, KENT ME15 6SX | 01622 774 900 | |
| Transition IP Ltd | 20-22 Wenlock Road, London N1 7GU | 01225 418417 | |
| Transltr Ltd | Suite 25, Vulcan Business Centre, Vulcan Road, Leicester LE53EF | 01162627723 | |
| Transparent Communications Ltd | Unit 51, Southmoor Workspace, Southmoor Lane, Havant PO9 1JW | 0844 415 4812 | |
| Transparent Telecom Ltd | Kemp House, 152-160 City Road, London EC1V 2NX | 02080502169 | |
| Transpeed | Unit 17a City Business Centre, Lower Rd, London SE16 2XB | 020 7394 2247 | |
| TransWorldCom Ltd | Ocean House,, Bentley Way, New Barnet EN5 5FP | 08000248900 | https://www.transworldcom.com/ |
| Tranzcript Ltd | Tempus Court, Bellfield Road, High Wycombe HP13 5HA | 08452249465 | |
| TraseUKLtd | 311 Gloucester Road, Cheltenham GL51 7AR | 01242690600 | |
| Treasury | 26 The Pavilion, 3 Russell Road, Nottingham NG7 6GB | 01159785290 | |
| Treenet Ltd | Kemp House, 160 City Road, London EC1V 2NX | 07507491754 | |
| Treken Information Management Ltd | Discovery Court, 551-553 Wallisdown Road, Poole, Dorset BH12 5AG | 01202 612 333 | |
| Trellisworks Ltd | Unit 7, Thatcham Business Village, Thatcham, Thatcham RG19 4LW | 01635861434 | |
| Trench Networks Ltd | Suite T01, Blyth Workspace, Commissioners Quay, Quay Road, Blyth NE24 3AF | 03331014101 | |
| Tresco Estate | The Estate Office, Tresco TR24 0QQ | 01720 422 849 | |
| Triangle Networks Ltd | 7A Triangle Centre, Kenn Road, Clevedon BS21 6HX | 01275871122 | https://www.triangletelecom.co.uk/ |
| Tribe Telecommunications Group Ltd | PO Box 640, Eastleigh SO50 0LT | 0345 314 4444 | |
| Tribeca Technology Ltd | Hengist House, Pond Farm Lane, Borden, Sittingbourne ME9 8LT | 08456524888 | |
| Trichromic LLP | 88 Coventry Road, Ilford, Essex IG1 4RE | 020 3327 0310 | |
| Trick Stuff Ltd | Unit 3 Llys Cae Felin, Felinfach, Swansea SA5 4HH | 01792584207 | |
| Trident Technology Ltd | 1 Fortmayne Cottages, Bedale DL8 1SL | 07931 742367 | |
| Trigg Software Ltd | Ruthlyn House, 90 Lincoln Road, Peterborough, Peterborough PE1 2SP | 07544872347 | |
| TRI-LAN I.T. Ltd | Natton Hall, Drewsteignton, Exeter EX6 6PF | 01647231240 | |
| Trinitel LTD | 313 Billet Road, London E17 5PX | 0845 421 0494 | |
| Trinity Maxwell Ltd | Monmouth House, 30-40 Artillery Lane,, London E1 7LS | 020 3137 8450 | |
| Trinity Telecom | 105 Garstang Road, Preston PR1 1LD | 0870 751 4200 | |
| Trinity Telecommunications Ltd | 5 Trinity Close, Wivenhoe, Colchester CO7 9RA | 01206826006 | |
| Trinsic Ltd | Forum 3, Parkway,, Solent Business Park,, Whiteley, Fareham, Hampshire PO15 7FH | 01489 850000 | https://www.trinsic.co.uk/ |
| Trio Telecom Ltd | Arquen House, 4-6 Spicer Street, St Albans AL3 4PQ | 01727221303 | |
| Triple 3 Group Ltd | 30 Thorndon Gardens, Epsom KT19 0QW | 020 8394 2250 | |
| Tripudio Ltd | The Coliseum, Watchmoor Park, Camberley GU15 3YL | 0844 576 0535 | https://tripudiotelecom.com/ |
| Trisoft Ltd | 3 Canalside, Canal Street, Nottingham NG1 7ET | 01158223456 | |
| Tristar Telecom Ltd | Silkwood Park, Fryers Way, Wakefield WF5 9TJ | 01226 390594 | https://tristartelecom.co.uk/ |
| Tritek Ltd | 54 Langham Road, Blackburn BB1 8BH | 033 0606 0023 | https://www.03numbersforfree.co.uk/ |
| Tri-Telecoms Ltd | 1386 London Road, Leigh on Sea SS9 2UJ | 01279944144 | |
| Triton Telecom Ltd | Suites 104-107 Sheldon Chambers, 2235-2243 Coventry Road, Sheldon, Birmingham B26 3NW | 0121 722 3280 | https://www.tritontelecom.co.uk/ |
| Triumph Technologies Ltd | Network House, Station Yard, Thame OX9 3UH | 01844 261555 | |
| Trivitual Ltd | 61 Green Lane, Braughing, Ware SG11 2QW | 08444729129 | |
| Trophy Telecom Ltd | 4 Great Courtlands, Langton Green, Tunbridge Wells, Kent TN3 0AH | 0844 251 1600 | |
| troublefree-it | 136 Old Street, London EC1V 9BS | 02079543860 | |
| TRU Communications Ltd | Sentinel House, Albert Street, Eccles M30 0NJ | 0844 241 2595 | |
| Tru Solutions Ltd | 398 Uttoxeter New Road, Derby DE22 3HX | 01332866666 | |
| True Communications Ltd | (Dissolved, February 2014) | ||
| True Msp Ltd | Unit 6a-2, Birlea Way, Castle Donington, Derby DE742HL | 01332948600 | |
| True Telecommunications Ltd | Griffin Court, 201 Chapel Street, Manchester M3 5EQ | 0800 440 2477 | |
| Truebox Ltd | Truebox, Unit 1, Riverside International, Bronllys, Brecon LD3 0HL | 01874508006 | |
| TruePBX Ltd | Harbour Business Centre, Harbour Road, Paisley PA4 0US | 01412802446 | |
| Truespeed Communications Ltd | 4 Rock Rd, Keynsham, Bristol BS31 1BL | 01225 300370 | https://www.truespeed.com/ |
| Trunk Networks Ltd | Lion House, Bell Lane, Uckfield, East Sussex TN22 1QL | 03333 443 322 | https://www.trunknetworks.com/ |
| Truphone Ltd | 25 Canada Square, Canary Wharf, London E14 5LQ | 020 3002 6565 | https://www.truphone.com/ |
| Trusip Ltd | Phoenix Park Industrial Estate, Off Park Street, Heywood OL10 2AB | 03333606060 | |
| Trust Communications Ltd | Trust House, 10 Guildhall Street, Grantham NG31 6NJ | 07957 410044 | |
| Trust Networks Ltd | Unit 3 Woodland Court, St Albans AL3 6NR | 01727 867919 | |
| Trust Systems Ltd | Unit 20, Cirencester Office Park, Tetbury Road, Cirencester GL7 6JJ | 01285898054 | |
| Trust Telecom Ltd | 63-66 Hatton Garden Fifth Floor, Suite 23, London EC1N 8LE | 08455612020 | |
| Trusted IT Ltd | 32 Market Street, Whaley Bridge SK23 7LP | 01663 732775 | |
| TSC Associates Ltd | 11 Browns Coppice Avenue, Solihull, West Midlands B91 1PL | 0121 703 3502 | |
| TSI Voice & Data LLP | 151 Business Design Centre, 52 Upper Street, London N1 0QH | 0808 178 9595 | |
| Tspeak (UK) Ltd | High Corn Mill, Chapel Hill, Skipton BD23 7NL | 0870 126 5333 | |
| Paul Gratton | https://www.tst.uk.com/ | ||
| Tsunami Computers Ltd | Unit 6 Branston House, West Avenue, Wigston LE18 2FB | 0870 766 2627 | |
| T-Systems Ltd | 21st Floor, Euston Tower, 286 Euston Road, London NW1 3DP | 020 7121 3900 | |
| Tt Doctors Ltd | Brookend, High Street, Ivinghoe LU7 9EX | 07827840091 | |
| TT Scotland Ltd | 29 Brandon Street, Hamilton ML3 6DA | 01698 320 421 | |
| TT Systems Ltd | Wessex House, Upper Market Street, Eastleigh SO50 9FD | 02380 651601 | |
| TTC Communications Ltd | Linton House, 164-180 Union Street, London SE1 0LH | 020 7771 7800 | |
| TTG (Southern) Ltd | Broadway House, 21 Broadway, Maidenhead SL6 1NU | 0870 067 1650 | |
| TTG (UK) | https://www.ttg.uk.com/ | ||
| TTMG Internet Ltd | The Software Centre, Tavistock Place, Sunderland SR1 1PB | 0191 510 0278 | |
| TTNC Ltd | Unit 10, 101 Lower Anchor Street, Chelmsford CM2 0AU | 020 3151 1000 | https://www.ttnc.co.uk/ |
| TTNC The Telephone Number Company | https://www.ttnc.co.uk/ | ||
| TTS Networks Ltd | Unit 5 Marr Tree Business Park, Ryefield Way, Silsden BD20 0EF | 01535 655 444 | |
| Tulp Solutions Ltd | 111 Uxbridge Road, London W5 5TL | 088 880 0500 | http://www.tulpsolutions.com/ |
| Tulp Solutions BV | 32 Haarlemmerstraatweg Oegstgeest, ZH 2343 Netherlands | 088 880 0500 | http://www.tulpsolutions.com/ |
| Tupelo Technology Ltd | 2 Mill Street, London SE1 2BD | 0203 195 6726 | |
| Turn IT On Ltd | Wittas House, Station Lane, Witney, Oxford OX28 4BH | 01865597620 | |
| Turnkey I.T Solutions | 5 Ferry Lane, Lympsham, Somerset BS24 0BT | 0844 811 2380 | |
| Turnkey Telecom Solutions Ltd | 1 George Williams Way, Colchester, Essex CO1 2JS | 01206 760505 | |
| Turquoise Mobile Ltd | Southwinds, Rucklers Lane, Kings Langley, Herts WD4 9ND | 01442 231 831 | |
| Turtle Technology Ltd | Stoneham Gate, Stoneham Lane, Eastleigh, Hampshire SO50 9NW | 02382 023 222 | |
| Tuxtel Ltd | 5 Chester Court, Eckington, Sheffield S21 4JF | 0114 333 0000 | https://www.tuxtel.co.uk/ |
| TVNet Ltd | Unit 21 Station Road Workshops, Station Road, Bristol BS15 4PJ | 0117 970 8181 | |
| Twang.net Ltd | Furlong House, Hambridge Road, Newbury, Berkshire RG14 5UT | 01635 239 000 | |
| Twelve Telecom Ltd | Vista Centre, 50 Salisbury Road, Middx TW4 6JQ | https://www.12telecom.com/ | |
| TwentyFour IT Services Ltd | Unit 4 Heather Court, Doncaster DN2 5YL | 01302732190 | |
| TwentytwentyMedia Ltd | Spectrum House, 9-11 Bromells Road, London SW4 0BN | 0330 010 2020 | |
| TWHG Ltd | Three Acre Lodge, Tothill, Alford LN130NJ | 01507450950 | |
| Twilio Ireland Ltd | 7 Soho Square, Fifth Floor, London W1D 3QB | 020 3872 2527 | https://www.twilio.com/ |
| Twin Systems PLC | 13 Cedar Court Parkway, St Albans AL3 6PA | 01727818200 | |
| Twin Technology Ltd | Victoria House, 49 Clarendon Road, Watford WD17 1HP | 01923 228820 | |
| Twisted Consultants Ltd | Cpquet Moor House, Acklington, Morpeth NE65 9AL | 020 3582 8014 | |
| Twisted Fish Ltd | Cobden House, Park Lane, Richmond TW9 2RA | 020 3141 6222 | |
| Twisted Pair Technologies Ltd | 20 Hanover Street, Cardiff CF5 1LS | 08000 925 921 | |
| TwistedPair Ltd | Collyers Stable, Ridge Common Lane, Petersfield GU32 1AQ | 0870 163 6999 | |
| TWL Europe | Dean Park House, 8-10 Dean Park Crescent, Bournemouth BH1 1HP | 020 3002 2288 | |
| TWL Inbound | |||
| TWL Voice 7 Data Ltd | Unit 4 Ty Verlon Ind Est, Cardiff Road, Barry CF63 2BE | 01446 729280 | |
| Two Cans Digital Ltd | Eastham Hall, 109 Eastham Village Rd, Birkenhead, Wirral CH62 0AF | 07472824321 | |
| Two Moons Computing Ltd | Reynolds House, Church Road, Lingfield RH7 6AH | 01342444040 | |
| Two Peas in a Pod Ltd | Hangar 4,, Suite 2, 2-4 Cecil Pashley Way, Shoreham Airport, Shoreham, West Sussex BN43 5FF | 01273 359 133 | |
| TWS Computer Services Ltd | 35 Aldervale Cottage, Crowborough TN63BT | 01892 888251 | |
| TX Installations Ltd | Unit 4 Glenmore Business Park, Blackhill Road, Holton Heath, Poole, Dorset BH16 6NL | 01202 233 550 | |
| TXRX Communications Ltd | 29 Belmont Heights, Basingstoke RG22 4RW | 01256810630 | http://www.txrxcomms.co.uk/ |
| TXU Europe | |||
| TyArya Ltd | PO Box 6697, Northampton NN3 9XT | 01604 785 785 | |
| Typex (Software) Ltd | Cobalt Business Exchange, Cobalt Park Way, Newcastle upon Tyne NE28 9NZ | 0191 226 3777 | |
| UA International Ltd | |||
| Ubi | https://www.ubicom.co.uk/ | ||
| Ubiquitas Design Ltd | Astley House, Brinsop Court, Hereford HR4 7AX | 020 7100 5341 | |
| Ubiquitous Communication Ltd | Unit 21, Teignbridge Business Centre, Cavalier Road, Heathfield Industrial Estate, Newton Abbot, Devon TQ12 6TZ | 01626 833139 | |
| Ubi-Tech (3R) | https://www.ubi-tech.co.uk/ | ||
| Uboss | https://www.uboss.com/ | ||
| UBT (EU) Ltd | Exchange Place, Poseidon Way, Warwick CV34 6BY | 0330 0555 500 | |
| UC Partners Network Ltd | 54 Greenfield Road, 2nd Floor, London E1 1EJ | 02073751726 | |
| UC&C Ltd | Evolve Centre, Cygnet Way, Houghton-le-Spring DH4 5QY | 0333 014 4488 | |
| Ucall Ltd | 6 Russell House, Doctors Lane, Henley in Arden B95 5AW | 0844 556 0662 | |
| Ucfx Ltd | 88 Kingsway, London WC2B 6AA | 01189148001 | |
| Ucreseller Ltd | Kemp House, 160 City Road, London EC1V 2NX | 02031377729 | |
| Ugotelecom Ltd | 1-21 High Street, Bletchingley RH1 4PB | 01883742461 | |
| UK Bandwidth Ltd | 3rd Floor 1 Ashley Road, Altrincham, Cheshire WA14 2DT | https://www.bandwidth.com/ | |
| UK Broadband Ltd | 3rd Floor, International House, 7 High Street, Ealing, London W5 5DB | 020 3006 7801 | https://www.ukbroadband.com/ |
| UK Business Services & Software Ltd | 35 Macclesfield Old Road, Buxton SK17 6TY | 03333350483 | |
| UK Cloud Communications Ltd | 1229 Cambrai Court, Birmingham B28 9AA | 03300947560 | |
| UK Communications Services LTD | 130 Old Street, London EC1V 9BD | 0330 113 2063 | |
| UK Connect | https://www.ukconnect.com/ | ||
| UK Data IT Ltd | 6th Floor, Elgar House, Shrub Hill Road, Worcester WR4 9EE | 0870 066 0771 | |
| UK Energy Solutions | Studio 70, Courthill House, 60 Water Lane, Wilmslow SK9 5AJ | 01625 470732 | |
| UK Free Software Network | 190 Aycliffe Road, Borehamwood, Hertfordshire WD6 4EL | 020 3358 0140 | |
| UK Freephone Ltd | P.O. Box 800, South Ockendon RM15 4WH | 0800 074 7070 | |
| UK Gas Technologies Ltd | Aztec House, Perrywood Business Park, Honeycrock Lane, Salfords, Redhill, Surrey RH1 5DZ | 01737 378000 | |
| UK ICT Ltd | Unit 1, Suite A, Stafford Park 6, Telford TF3 3AB | 01952 292827 | |
| UK Independent Telecom Ltd | 9 Moorside Rise, Clackheaton BD19 6AA | 0844 412 7900 | |
| UK IP Services Ltd | Unit 2, Riverside House, Mill Lane, Newbury RG14 5QS | 0845 450 9030 | |
| UK IT Networks Ltd | 2nd Floorm 23 Bridgeman Terracem Wigan WN1 1SX | 0844 324 8585 | https://www.ukitnetworks.com/ |
| UK Number Store Ltd | 27 Frederick Street, Jewellery Quarter, Birmingham B1 3HH | 0121 617 5500 | https://www.uknumberstore.co.uk/ |
| UK Online Agrisales Ltd | 39 Ballynahatty Road, Omagh, Co Tyrone BT78 1PW | 028 8225 1596 | |
| UK Solution Services Ltd | 27 Charter Gate, Quarry Park Close, Stanier Way, Northampton NN3 6QB | 01604 746790 | |
| UK Tech Ltd | 58 Moorland Road, Stoke on Trent ST6 1DT | 01782444282 | |
| uk telco ltd | 1 the Stables, Wassell Grove Lane, Hagley DY9 9JH | 08448221234 | |
| UK Telecom | Media House, Lansbury Estate, Knaphill, Woking GU21 2EP | 01483 485070 | |
| UK Telecom Solutions Ltd | 26 York Street, Mayfair, London, W1V 6PZ | 020 603 3243 | |
| UK Wholesale Direct | 4th Floor Meadow Mill, Water Street, Stockport SK1 2BU | 0161 850 1288 | https://www.uk-wholesale.co.uk/ |
| UK_Telco (GB) Ltd | |||
| UK2Telecom Ltd | |||
| Ukbits Ltd | The Cottage, York House, Smisby Road, Ashby de la Zouch, Leicestershire LE65 2UG | 01530 561750 | |
| Ukhostme.Com Ltd | CORNER HOUSE, MARKET PLACE, BRAINTREE, ESSEX CM7 3HQ | 01376 494 450 | |
| UKN Group Ltd | 300 Cedarwood, Chineham Business Park, Basingstoke, Hampshire RG24 8WD | +44 125 684 6810 | |
| UKOnline | https://www.ukonline.co.uk/ | ||
| UKS Ltd | Birmingham Road, Studley, Warwickshire B80 7BG | 0121 314 5212 | |
| Ultimate Communications Ltd | Unit 10, Brooklands Court, Kettering Venture Park, Kettering NN15 6FD | 07743557701 | |
| Ultimate Link Ltd | Quantum House, 23a Church Street, Windermere, Cumbria LA23 1AQ | 01539 987 654 | |
| Ultimate Media Ltd | Gunpowder House, 66 Great Suffolk Street, London SE1 0BL | 0800 437 0707 | |
| Ultimate Services Group | 10 Morven House, Cavendish Road, Worksop, Nottinghamshire S80 2TD | 0843 289 1686 | |
| Ultimate Telecom Ltd | 1st Floor, 2 Woodberry Grove, North Finchley, London N12 0DR | 07714 491631 | |
| Ultimate Trade Services Ltd | 380 Nottingham Road, Basford, Nottingham NG7 7FF | 07713499599 | |
| Ultracom Ltd | hanover court, 5 queen street, lichfield WS136QD | 08455211661 | |
| Ultranetworks Ltd | Caledonia House, 89 Seaward Street, Glasgow G41 1HJ | 07763301199 | |
| Ultraview Telecom Ltd | 48 Glengall Road, London NW6 7EP | 020 3051 5615 | https://www.ultraview.net/ |
| Umberella systems ltd | Century Business Park, Rotherham S635DA | 01709 916162 | |
| Umbrella Broadband Ltd | 44-46 Bath Street, Leamington Spa CV31 3AE | 07776247247 | |
| Umbrella Systems And Services Ltd | The Generator, Exeter EX2 4AN | 01392 925004 | |
| Unchained ISP Ltd | 1 Kelcliffe Grove, Guiseley, Leeds LS20 9EZ | 07415674245 | |
| Unecom IT Ltd | 75 Exploration Drive, Pioneer Park, Leicester LE4 5NU | 01162417151 | |
| Unicom | Universal House, Longley Lane, Manchester M22 4SY | 0161 946 4440 | https://switchingon.com/ |
| Unicomm Ltd | 20, Millers, Turn, Chinnor OX39 4JZ | 02071477000 | |
| Unifi Communications Ltd | The Old Sail Loft, Eel Pie Island, Twickenham, Middlesex TW1 3DY | 0208 943 9333 | |
| Unified Business Communications Ltd | Design Works, William Street, Felling, Gateshead NE10 0JP | 0191 423 6261 | |
| Unified Business Communicatons | https://www.unifiedbizz.com/ | ||
| Unified Consultants Ltd | 9 Jerdan Place, London SW6 1BE | 02031951246 | |
| Unified Tech Ltd | 40 Snowden Lawn, Leeds LS13 2UG | 0845 652 2222 | https://www.switchconnect.co.uk |
| Unified Telephony Solutions Ltd | 59 Whinneyfield Road, Newcastle upon Tyne NE64HU | 0191 3371699 | |
| Unified Voice & Data Ltd | Metic House, Ripley Drive, Normanton WF6 1QT | 01134576626 | |
| Unified World Communications Ltd | Challenge Way, Greenbank Tech park, Blackburn BB1 5QB | 0843 216 2323 | |
| Unify Business Solutions Ltd | Unify Business Solutions Ltd, Ambassador House, 5 Midland Way, Barlborough, Chesterfield S43 4XA | 0845 871 77 88 | |
| Unify Communications Ltd | Bristol & Bath Science Park, Dirac Crescent, Emersons Green, Bristol BS16 7FR | 0117 3322 000 | |
| Unify IT Ltd | Office 183 321-323 High Road, Chadwell Heath RM6 6AX | 01277546050 | |
| Unify Network Solutions Ltd | 120 Sheffield Road, Dronfield, Sheffield S18 2JA | 0845 871 7788 | |
| UnifyU Ltd | Pinetree Business Centre, Durham Road, Birtley, Chester-le-Street, Count Durham DH3 2TD | 0191 410 6969 | |
| Unigold 2000 Ltd | 34 Stringers Avenue, Jacobs Well, Guildford, Surrey GU4 7NW | 01483 459045 | |
| Unihomes And Bills Ltd | SUITE 5, THE MANOR HOUSE, 260 ECCLESALL ROAD, SHEFFIELD S11 9PS | 07872 533 610 | |
| Unilink Systems Ltd | Enterprise House, 1-2 Hatfields, London SE1 9PG | 020 7036 3800 | |
| Union Calls Ltd | 20-22, Wenlock Road, London N1 7GU | 02032878656 | https://www.unioncalls.co.uk/ |
| Union Street Technologies | https://www.unionstreet.uk.com/ | ||
| Uniplus Telecom LTD | Bentinck House, Bentinck Road, West Drayton UB7 7RQ | 02035198939 | |
| Unique Business Solutions Ltd | 1643 Coventry Road, Birmingham B26 1DD | 0121 7062508 | |
| Unique Global Communications Ltd | 85 Great Portland Street,, London W1W 7LT | 02038070661 | |
| Uniquely Euphoric Ltd | Euphoric House, Station Road, New Longton, Preston PR4 4ZD | 07387266401 | |
| Unisys Ltd | First Floor North Cantium House, Sandling Road, Maidstone, Kent ME14 1XD | 01622 221 221 | |
| Unite Communications Ltd | 33 Bellingham Drive, Benton, Newcastle Upon Tyne NE12 9SZ | 0191 270 5125 / 0845 388 3370 | |
| Unite Telecommunications (Uk) Ltd | Unit D14, Heritage Business Park, Heritage Way, Gosport PO12 4BG | 03303203027 | |
| Unite Telecoms Ltd | 20-22 Wenlock Road, London N1 7GU | ||
| United Connect Ltd | 25-27 Thames Street, Hampton, Middx TW12 2EW | 020 8408 8888 | https://www.unitedconnect.com/ |
| United Network Solutions Ltd | Tele House Borehamwood Enterprise Park, Theobald Street, Borehamwood, Hertfordshire WD6 4RJ | 0870 900 2777 | |
| United Network Technologies Ltd | Saxon House, 27 Duke Street, Chelmsford CM1 1HT | 02031 372 027 | |
| United Networking | 4 Lark Way, Emsworth, UK PO10 8UU | 07395807345 | |
| United Payments Ltd | 434, ST ANNS ROAD, LONDON, LONDON N15 3JH | 07525354955 | |
| United Technologies (UK) Ltd | Unit 9 Hobbs Cross Industrial Estate, Theydon Garnon, Epping CM16 7NY | 01992812929 | |
| United Utilities Customer Sales Ltd | |||
| Uni-tel Business Communications Ltd | Blackburn Technology Management Centre, Challenge Way, Blackburn BB1 5QB | 0333 321 6680 | |
| Unitel Direct Ltd | DBH Business Centre, Coxwold Way, Billingham, Cleveland TS23 4EA | 0844 745 1111 | https://www.uniteldirect.co.uk/ |
| Unitel Network Services Ltd | Communications Centre, 1 Ivy Street, Priory Industrial Estate, Birkenhead H41 5EE | 0151 650 0333 | |
| Unitel One Source Ltd | The Sharp Project, Thorp Road, Manchester M40 5BJ | 0800 279 4886 | |
| Unitel Utilities Ltd | First Floor, Victoria House, Pearson Way, Stockton-on-Tees TS17 6PT | 0844 745 1111 | |
| Unitron Systems and Development Ltd | Network House Stafford Park 17, Telford TF3 3DG | 03338000873 | |
| Unity Broadband | |||
| Unity Communications Ltd | South House, 21-37 South Street, Dorking, Surrey RH4 2JZ | 01306 872719 | |
| Universal Business Solution Ltd | 3 Vernon Road, Feltham TW13 4LL | 07480695656 | |
| Universal Technologies Ltd | Mount St Joseph House, Windermere Terrace, Liverpool L8 3SB | 08450945612 | |
| University Of Strathclyde | 16 Richmond Street, Glasgow G1 1XQ | 0141 552 4400 | https://www.strath.ac.uk/ |
| Univoice Ltd | Provincial House, 3 High Street, Ryde PO33 2PN | 08450 50 48 10 | https://www.univoice.co.uk/ |
| Uniworld Bureau Services | 2 Manor Court, Barnes Wallis Road, Segensworth, Fareham, Hampshire PO15 5TH | 0333 240 3000 | |
| Unlimit The Ltd | First Floor, 3 All Hallows Road, Bispham, Blackpool FY2 0AS | 01253966060 | |
| uno Communications Ltd | Unit 25 President Buildings, Savile Street East, Sheffield S4 7UQ | 03456420340 | |
| Unofon Telecom Ltd | Sir Walter Raleigh House, 48-50 Esplanade, St Helier, Jersey JE3 3QB | 0800 652 4894 | |
| Updata Infrastructure (UK) Ltd | The Omnibus Building, Lesbourne Road, Reigate, Surrey RH2 7LD | 0845 565 0555 | https://www.updata.net/ |
| Updata Infrastructure UK Ltd | Premier House, 1-7 Warren Road, Reigate, Surrey RH2 0BE | 01737 224422 | https://www.updata.net/ |
| Uplands Mobiles Ltd | 197 Saint Helens Avenue, Swansea, West Glamorgan SA1 4NE | 01934 424752 | |
| Upper Bridge Enterprises | Upper Bridge Court, Brilley HR3 6HG | 01497 831019 | |
| Uptech Ltd | 128-132 Norfolk Street, Kings Lynn PE30 1AP | 01553692212 | |
| Uptime Solutions Ltd | Unit 26, Crawley Business Centre, Crawley RH101TN | 02037647688 | |
| Urban Evolution Property Management Ltd | Suite 402, 1 Old Hall Street, Liverpool, Liverpool L3 9HF | 07880037660 | |
| Urban IT Solutions Ltd | Vanguard House, Keckwick Lane, Daresbury, Cheshire WA4 4AB | 0845 363 0403 | |
| Urban Network UK Ltd | Met Wharf Building, 70 Wapping Wall, London E1W 3SS | 020 7749 6899 | |
| Urban Splash Group Ltd | Timber Wharf, 16 ? 22 Worsley Street, Castlefield, Manchester M15 4LD | 0161 839 2999 | |
| Urban Stream Ltd | International House, 24 Holborn Viaduct, London ECA1 2BN | 03301221800 | |
| Urbancoms Ltd | Salisbury House, 81 High Street, Potters Bar, Herts EN6 5AS | 01707 291 270 | |
| U-Save Information Communication | https://www.usic.co.uk/ | ||
| U-Save Telecom | https://www.usic.co.uk/ | ||
| Usethegeeks Ltd | 2 Slater Terrace, Burnley BB11 1BU | 07453097875 | |
| USIC Ltd | 49 Hoghton Street, Southport, Merseyside PR9 0PG | 01704 822 522 | https://www.usic.co.uk/ |
| Usic Internet Services Ltd | Unit 2 Josselin Court, Josselin Road, Essex, Basildon SS13 1QE | 03300883330 | |
| USL Communications Ltd | 2 Elliott Court, St Johns Road, Meadowfield DH7 8PN | 01913499988 | |
| Usomo | https://www.usomo.co.uk/ | ||
| USP (GB) Ltd | 2 The Cobalt Centre, Siskin Parkway East, Coventry CV3 4PE | 02476 620 020 | |
| UT Networks Ltd | Barham Court, Teston, Maidstone, KENT ME18 5BZ | 0845 408 1002 | |
| uTargeting Ltd | 99 Canterbury Rd, Whitstable CT5 4HG | 01227656353 | |
| UTelcom UK | 22 Carlton Road, South Croydon CR2 0BS | 02037439369 | |
| U-Telecom Ltd | Room 1 Annex, Sheffield Business Centre, Europa Link, Sheffield S91XZ | 03300538638 | |
| Utelize Communications Ltd | Suite F, Breakspear Park, Breakspear Way, Hemel Hempstead HP2 4TZ | 0330 0240 444 | https://www.utelize.co.uk/ |
| Utilise Software Ltd | Suite Fb4, Old Library, St Faiths Street, Maidstone ME14 1PF | 02078594381 | |
| Utilit Ltd | 3 Merietts Court, Long Ashton Business Park, Bristol BS41 9LW | 01275395118 | |
| Utilita Telecom Ltd | Secure House, Moorside Road, Winchester SO23 7RX | 01962891170 | |
| Utilities Technology Group | https://utg.uk.com/ | ||
| Utilities Technology UK LTD | Unit 3, Deacon Park, Moorgate Road, Knowsley Industrial Estate, Liverpool L33 7RX | 03300881467 | |
| Utilities UK Ltd | Hartcran House, Gibbs Couch, Carpenders Park, Herts WD19 5EZ | 0800 027 3930 | https://www.directsavetelecom.co.uk/ |
| Utility North | Beaconlough Road, Low Fell, Gateshead NE9 6TB | 07834585234 | |
| Utility Options Ltd | Gateway House, 78 Northgate Street, Chester CH1 2HR | 0800 195 0123 | |
| Utility Point Ltd | Merck House, 7th Floor, Seldown, Poole BH15 1TW | 03455577878 | |
| Utility Point - Telecoms Ltd | Arena Business Centre, Holyrood Rd, Poole BH17 7FJ | 03455577878 | |
| Utility Provida Communications Ltd | 567A Bury Road,, Rochdale OL11 4DQ | 0845 6440845 | |
| Utility Renewals Ltd | Suite 6, Bridgewater House, Surrey Road, Nelson BB9 7TZ | 08444 120036 | |
| Utility Trade Communications Ltd | Unit 1b Nursery Court, Kibworth Business Park, Harborough Road, Kibworth LE8 0EX | 08442097393 | |
| Utl IT Ltd | Knowledge Dock, 4 University Way, London E16 2RD | 08458844414 | |
| Utopia Technology Ltd | 15 Carnavon Street, Manchester M3 1HJ | 01615074082 | |
| UTTILY Telecoms Ltd | 118 Piccadilly, London W1J 7NW | 02075696725 | |
| UTV Internet | Ormeau Road, Belfast, Co. Antrim BT7 1EB | 0845 247 0000 | |
| UV Associates Ltd | Admirals Court, 30 Horselydown Lane, London SE1 2LJ | https://uvacity.com/ | |
| V Networks Communications Ltd | Suite 102 Churchill Business Centre, 70 Churchill Square, Kings Hill, West Malling, Kent ME19 4YU | 020 3664 6678 | |
| V.I.P. fone Ltd | 152 City Road, London EC1V 2NX | 02071931234 | |
| V12 Tech Ltd | The Cottage, Two Dells Lane, Ashley Green, Chesham HP5 3RB | 01442777500 | |
| V12 Telecom Ltd | 1 Stanton Court, South Marston Park, Swindon CN3 4YH | 0870 190 0077 | https://www.v12telecom.com/ |
| V4B Communications Ltd | 26 York St, London W1U 6PZ | 02074422229 | https://www.voip4business.biz/ |
| V4VoIP Ltd | F24 – Sabichi House, 5 Wadsworth Road, Perivale, Middx UB6 7JD | 0345 034 3901 | https://v4voip.com/ |
| Vadtel Ltd | Unit26 Winston Business Centre, Chartwel Rd, Lancing BN15 8TU | 01903767423 | |
| Vaioni Group Ltd | 14 Leslie Hough Way, Manchester M6 6AJ | 0870 160 0650 | |
| Vale Communications Ltd | 333 Connaught road, surrey GU24 0AD | 01483795030 | |
| Valetech Solutions Ltd | The Cotton Tree, 10 Markham Street, Hyde SK14 4BN | 0161 393 2029 | |
| Valiant Internet Services Ltd | PO Box 1306, Sunderland SR5 9FX | 020 7965 7255 | |
| Value Telecom | |||
| Vanco UK Ltd | John Busch House, 277 London Road, Isleworth, Middlesex TW7 5AX | 0208 636 1700 | |
| Vandercom Ltd | Unit C Petherton House 27-29 Petherton Road London N5 2QZ | 020 3302 8189 | https://www.vandercom.net/ |
| Vandercom Voice & Data Solutions Ltd | 204 Ontario Tower, Fairmount Avenue, London E14 9JA | 08444 128 630 | |
| Vangent Ltd | Vangent Limited, Cottons Centre, Cottons Lane, London SE1 2QG | 020 7939 3505 | |
| Vanguard Communications Ltd | Beechcroft House, Rectory Hill, Rickinghall, Diss IP22 1EH | 01379 770321 | |
| Vanilla Cloud Ltd | 5, North Street, Hailsham, East Sussex BN27 1DQ | 02079522577 | |
| VanillaIP | https://www.vanillaip.com/ | ||
| Vantage IT Solutions Ltd | Unit 2 Airfield Park, Cheddington Lane, Long Marston, Tring HP23 4QR | 01296 668 966 | |
| Vantage Telecom Ltd | 26 Hoverfly Close, Lee-on-the-Solent PO13 8FX | 07775144166 | |
| Vapour Cloud | https://www.vapourcloud.com/ | ||
| Vapour Media Ltd | Woodvale House, Woodvale Business Park, Brighouse HD6 4AB | 0333 200 1142 | |
| Varcarme Ltd | Unit 7, Arundel Business Park, Sheffield S6 1LZ | 0114 2314141 | |
| Anywhere Cloud Ltd | 63 Waddington Road, Clitheroe BB7 2HN | 03333230230 | |
| Vaughan Data Systems ltd | 7 the courtyard, bromsgrove B60 4DJ | 01527833384 | |
| VC Warehouse Ltd | Hele Mill, Marhamchurch, Bude EX23 0JA | 01288 255155 | |
| VC World | |||
| Vecini Ltd | Unit 52, Claydon Business Park, Great Blakenham, Ipswich IP6 0NL | 0844 884 2270 | |
| Vectes Ltd | 951 Abbeydale Road, Sheffield S7 2QD | 01143767040 | |
| Vectone Mobile Ltd | 54 Marsh Wall, London E14 9TP | 020 7536 4800 | https://www.vectonemobile.co.uk/ |
| Veekan Ltd | 14 Stepping Stones Road, Coundon, Coventry CV5 8JU | 07722573090 | |
| Velocity broadband | 162 helenvale street, Glasgow G31 4LS | 07596451901 | |
| Velocity Network Solutions Ltd | 88 North Street, Hornchurch RM11 1SR | 01277286214 | |
| Velocity1 Ltd | York House, Empire Way, Wembley, Middlesex HA9 0PA | 0845 557 6600 | |
| VeloxServ Communications Ltd | Unit 14 Merryhills Enterperise park, Park Lane, Wolverhampton WV10 9TJ | 0800 084 3521 | |
| VEN Systems Ltd | 51 Calthorpe Street, London WC1X 0HH | 020 7096 1446 | https://www.vensystems.co.uk/ |
| Venditan Ltd | 39 Deansgate, Manchester M3 2BA | 0845 521 0444 | |
| Venom IT Ltd | Technology House, 59 Washway Road, Sale, Manchester M33 7AB | 0330 202 0220 | |
| Venridge Ltd | Venrtidge house, Borwick Dv, Beverly HU17 0HQ | 07776692619 | |
| Venture Converged Solutions Ltd | Thanet Reach Business Park, Millennium Way, Broadstairs, Kent CT10 2QQ | 01843 603 870 | |
| Venture Telecom Ltd | Barham Court, Teston, Maidstone, KENT ME18 5BZ | 0845 241 0255 | |
| Venus Business Communications Ltd | 24 Denmark Street, London WC2H 8NJ | 020 7240 5858 | |
| Vepco Ltd | Hob Hall, Holme Chapel, Cliviger, Lancashire BB10 4SU | 0845 864 5005 | |
| VePhone | Hogan House, 20 High Street, Aldridge, West Midlands WS9 8LZ | 01922 453394 | https://www.vephone.com/ |
| Verastar Ltd | Longley House, Longley Lane, Manchester M22 4SY | 0161 946 4440 | |
| Verdi Communications Ltd | Barking House, Farndon Road, Market Harborough, Leics LE16 9NP | 01858 288 055 | |
| Verisolve Ltd | 5 Priory Court, Tuscam Way, Camberley GU15 3YX | 08000 141875 | |
| Veritas Telecom Ltd | 143 Connaught Avenue, Frinton-on-Sea CO13 9AB | 07896507934 | |
| Verizon UK Ltd | Reading International Business Park, Basingstoke Road, Reading RG2 6DA | 0118 905 5000 | https://www.verizonenterprise.com/uk/ |
| Vermont Systems Ltd | Speedwell House, Speedwell Close, Chandlers Ford, Hampshire SO53 4BT | 023 9098 3404 | |
| Verranti Ltd | Navson House, Crabtree Office Village, Egham TW20 8RY | 0845 521 3333 | https://verranti.co.uk/ |
| Versatel Solutions Ltd | 5 Liberty Square, Kings Hill, West Malling ME194AU | 01732488247 | https://versatelsolutions.co.uk/ |
| Versatile IT Consultancy Ltd | Concept House, Cedar Drive, Formby, Liverpool L372DS | 01704834849 | |
| Verstech Ltd | 43B WIMBORNE ROAD, CORFE MULLEN, WIMBORNE BH21 3HD | 01202 237374 | |
| Vertical Solutions | 18 Juniper Gardens,Shenley, Radlett WD7 9LA | 01923 839393 | |
| Vertical Systems | |||
| Verve Digital Ltd | 479A London Road, Appleton, Warrington WA4 5DP | 01925393590 | |
| Vestra IT Solutions Ltd | 29 Broadhurst Avenue, London IG3 9DL | 02030112341 | |
| VetSpace Ltd | 82 Meadrow, Godalming, Surrey GU7 3HT | 0845 2000 725 | |
| Veyring Ltd | 24 Hills Road, Cambridge CB2 1JP | 07720452243 | |
| Vezo Networks | The Lodge, Coxes Farm Road, Billericay CM11 2UA | 08449994111 | |
| VFast Ltd | County House, Station Approach, Bekesbourne, Canterbury, Kent CT4 5DT | 01227 668 901 | |
| VIA | https://www.joinvia.com/ | ||
| Via IT Services Ltd | 29 High Street, Chislehurst, Kent BR6 0QZ | 020 3603 6440 | |
| Via Wire Ltd | Eco House, Honywood Road, Basildon SS14 3DS | 01702668730 | |
| VIAMEN Ltd | 10 Warple Mews, London W3 0RF | 08008101210 | |
| VIASPEC Ltd | 145-157 St John Street, London EC1V 4PW | 0844 884 2375 | |
| Viastak Ltd | Viastak Limited, 33 St James Square London, London SW1Y 4JS | 020 79577004 | |
| Viatel (UK) Ltd | Inbucon House, Wick Road, Egham, Surrey TW20 0HR | 01784 494200 | https://www.viatel.com/ |
| Viatel Global Services (UK) Ltd | Inbucon House, Wick Road, Egham, Surrey TW20 0HR | 01784 494200 | https://www.viatel.com/ |
| Via-Vox Ltd | 1st Floor, Vectra House, 36 Paradise Road, Richmond, Surrey TW9 1SE | 020 3398 0398 | http://www.via-vox.com/ |
| Vibe Active Communications Ltd | 237A London Road, Hadleigh Essex SS7 2RF | 0844 856 1800 | https://www.vibeactive.com/ |
| Vibe Communications | https://www.vibecoms.co.uk/ | ||
| Vibe Communications UK Ltd | Langtye Business Centre, Langye Lane, Ripe, East Sussex BN8 6AY | 01273 652001 | https://www.vibecoms.co.uk/ |
| Vibework Ltd | 62 Bayswater Road, London W2 3PS | 02071129280 | |
| Vidazone Ltd | 5 Foster Road, Peterborough PE2 9RS | 01733669425 | |
| View2IT Ltd | 2 Grotto Road, Weybridge, Surrey KT13 8PX | 01932 808 084 | |
| Viewdata Computing Ltd | 25 Woodthorpe Road, Ashford TW15 2RP | 020 8979 3000 | |
| Vigo IT Solutions LTD | Unit 5, The Workshops, 2 Marcus Street, Birkenhead CH411EU | 01519097160 | |
| Village Networks Ltd | Network House, 28 Ballmoor, Buckingham Industrial Estate, Buckingham MK181RQ | 07447605842 | |
| Vindico Ics Ltd | Unit 3.1 Trostre Industrial Estate, Llanelli SA14 9UU | 01554 858 108 | |
| Vineside Ltd | Milngavie Enterprise Centre, Ellangowan Court, Glasgow G62 8PH | 0141 943 1943 | |
| VineTec Ltd | 23 Browning Crescent, Bletchley, Milton Keynes MK3 5AU | 02037003456 | |
| Vinmour Solutions Ltd | 6 Garrier Place, Kilmarnock, Ayrshire KA12NG | 03300023456 | |
| Vintas Contract Services Ltd | Unit 9, Ingfield Business Centre, Cherry Nook Road, Huddersfield HD2 1JD | 01484766347 | |
| Viopswitch | Berkeley House, 18-24 High Street, Edgware, Middx HA8 7RP | 020 8136 9000 | https://www.voipswitch.com/ |
| VIP VoIP Ltd | 2 Queens Road, Sheffield S2 4DG | 03300881182 | |
| Viper IT Group Ltd | Unit 4A Dolphin Way, Shoreham BN43 6NZ | 01273 254 000 | |
| VIPIT Ltd | 1 Winchester Street, Whitchurch, Hants RG28 7AH | 0845 257 5907 | |
| Virgin Media Ltd | Box 333, Matrix Court, Swansea SA7 9BB | 0845 454 1111 | https://www.virginmedia.com/ |
| Virgin Media Business Ltd | Media House, Bartley Wood Business Park, Bartley Way, Hook RG27 9UP | 0800 953 0180 | https://www.virginmediabusiness.co.uk/ |
| Virgin Media Talk Plans | https://www.virginmedia.com/ | ||
| Virgin Media Wholesale | Communications House, Bartley Wood Business Park, Bartley Way, Hook RG27 9UP | 0800 953 0180 | https://www.virginmediabusiness.co.uk/ |
| Viridian Information Technology Ltd | 114 Cotswold Avenue, Bushey, Hertfordshire WD23 4QH | 020 8421 8539 | |
| Virocom Ltd | 9 Hestia House, London SE1 3ES | 0845 678 8898 | https://www.virocom.co.uk/ |
| Virtia Ltd | Suite 9 Davey House, 31 St Neots Road, Eaton Ford, St Neots PE19 7BA | 01234866889 | |
| Virtual Comms Ltd | 63 Balloo Drive, Bangor BT19 7QY | 02895607129 | |
| Virtual Connections Ltd | 24 BROOM LANE, CHOBHAM, WOKING GU24 8RQ | 03333444436 | |
| Virtual I T Partner Ltd | 19 ARUN, EAST TILBURY RM18 8SX | 01375840555 | |
| Virtual IT Ltd | 18C Pindock Mews, London W9 2PY | 020 7286 9500 | |
| Virtual IT Services Provider, Ltd | Unit 29.1-29.2, Lynnwood i8 Enterprise Centre, Lynnwood Terrace, Newcastle upon Tyne NE4 6UL | 01912733322 | |
| Virtual Networking Ltd | 2 Redcliffe Road, Melton HU14 3RS | 01482 333505 | |
| Virtual Talk Ltd | 28-33 Quadrant Business Centre, 135 Salusbury Road, London NW6 6RJ | 020 7309 6606 | https://www.virtualtalk.co.uk/ |
| Virtual1 Ltd | 8 Angel Court, 22-25 Finsbury Square, London EC2R 7HP | 0844 884 0800 | https://www.virtual1.co.uk/ |
| Virtue Technologies Ltd | Chadwick House, White Moss Business Park, Skelmersdale WN8 9TD | 01695 731233 | |
| Virtuo Ltd | 10 South St. Andtew Street, Edinburgh EH2 2AZ | 0131 561 0100 | |
| VirtuousIT Ltd | Unit 2 Bathgate Business Centre, Whitehill Industrial Estate, Bathgate, West Lothian EH48 2EP | 01506 637 700 | |
| Vise Ltd | 73-75, Aston Road North, Aston, Birmingham B6 4DA | 01213331408 | |
| Vision Comms (Wales) Ltd | Malthouse Avenue, Regus House, Cardiff Gate Business Park, Pontprennau, Cardiff CF23 8RU | 0333 323 0380 | |
| Vision Computer Centre Ltd | Unit 116, Springvale Industrial Estate, Cwmbran NP44 5BG | 01633 864444 | |
| Vision Corporate Services Ltd | Suite 3, Winwood Court, Norton Road, Stourbridge, West Midlands DY8 2AE | 0870 803 3201 | |
| Vision Mobile UK Ltd | Unit 1 The courtyard, 2 Finney Lane, Heald Green, Cheadle, Cheshire SK8 3GZ | 0871 200 3274 | |
| Vision Voice and Data Ltd | 90 Paul Street, London EC2A 4NE | 020 7822 2399 | |
| Vispa Ltd | Delta House, Wavell Road, Manchester M22 5QZ | 0330 088 5800 | https://www.vispa.net/ |
| Vissensa Ltd | Centaur House, Ancells Business Park, Ancells Road, Fleet, Hampshire GU51 2UJ | 0845 625 5660 | |
| Vista Systems Ltd | 11 Slindon Road, Worthing BN14 9LJ | 08448797130 | |
| Visual Capital Ltd | Hawthorn Cottage, Beech Road, Haslemere, Surrey GU27 2BX | 0845 034 6991 | |
| vIT4u Ltd | 8 Chilver Drive, Bradford BD40TS | 01274440011 | |
| Vita IT Ltd | 2 Lye Green Cottages, Lycrome Road, Chesham HP5 3LD | 020 3432 1952 | |
| Vital Contact Ltd - | Unit 2, Trinity House, 1 Trinity Street,, Colchester, Essex CO1 1JN | 01206 596001 | |
| Vital Contact t/a Colchester Telecom | https://www.essextelephonesystems.co.uk/ | ||
| Vital International Group Ltd | Matrix 11, 900 Coronation Road, Park Royal, London NW10 7PH | 0870 005 6440 | |
| Vital Network Solutions | Unit 2 Whitfield Business Park, Manse Lane, Knaresborough HG5 8BS | 01423 796290 | |
| Vital Phone | |||
| Vital Service North East Ltd | 28 Church Avenue, Choppington NE625SE | 01670432999 | |
| Vital Telcom Ltd | 2nd Floor, 2 London Wall Buildings, London EC2M 5PP | 02070488892 | |
| ViTelecom LTD | 17 Davies Close, Croydon CR0 6EX | 08081643344 | |
| Vitrx | Park House, Station Road, Loudwater, Bucks HP10 9UN | 0800 849 0849 | |
| VITS Ltd | Ranelagh Gardens, Fulham SW6 3PA | 02038154466 | |
| J and V Data Services Ltd | 358 London Road, Hadleigh Essex SS7 2DD | 01702 410 043 | http://www.vivaciti.net/ |
| Vivao Communications Ltd | Fourth Floor, 86-90 Paul Street, London EC2A 4NE | 020 3475 7977 | |
| Vive UK Ltd | 70 Mabgate, Leeds LS9 7DZ | 01133203333 | |
| Vivi | 2nd Floor, 34 Severn Street, Welshpool, Powys SY21 7AD | 0800 830 3777 | https://vivivoip.co.uk |
| Vivid Clouds Ltd | 3rd Floor, 207 Regent Street, London W1B 3HH | 01215152000 | |
| Vivid Telecom Ltd | Unit 2477 Chynoweth House, Trevissome Park, Truro, Cornwall TR4 8UN | 0844 567 7800 | |
| Vividly Simple Ltd | 31 Belle Vue Road, Henley-on-Thames RG9 1JQ | 07956 241660 | |
| VividSky Ltd | Park Place, 12 Lawn Lane, London SW8 1UD | 020 7091 2950 | |
| Vivio Ltd | The Vault, 8 Boughton, Chester CH3 5AG | 01244 305 100 | |
| Vivotech Ltd | 3 McLaren Place, Morley, West Yorkshire, Leeds LS27 0FS | 07954182854 | |
| Vix Solutions Ltd | Suite 34, New House,, Hatton Gardens, London EC1N 8JY | 02032900849 | |
| Vizion 4 IT Ltd | Unit 7 Enigma Building, Bilton Road, Bletchley, Milton Keynes MK1 1HW | 01908 774310 | |
| Vizion Communication Ltd | First Gazette notice for compulsory strike-off | 0161 982 0000 | |
| Vlan Ltd | 26 Ruskin Avenue, Wrenthorpe, West Yorkshire, Wakefield WF1 2BD | 03301133489 | |
| VM Computers Ltd | SBC House, Restmor Way, Wallington SM6 7AH | 02086191000 | |
| vmaack Ltd | Somerset House, Shackstead Lane, Godalming, Surrey GU7 1RL | 020 3372 8994 | |
| Volcalis Telecom Dienste GmbH | Neuhoffstrasse 8, 6340 Baaz, Switzerland | 00 31 226 340 584 | |
| Vocallity Ltd | Unit 15 Hersden Close, Hersden CT3 4LB | 03330 069703 | |
| Vocaltel Ltd | 27, Thurrock center for business, 2 George street, Grays RM17 6LY | 01375820090 | |
| VoDAC IT Services Ltd | 14 Lower Meadow, Cheshunt, Waltham Cross, Herts EN8 0QU | 020 7096 3800 | |
| Vodafone Ltd | Vodafone House, The Connection, Newbury, Berks RG14 2FN | 01635 33251 | https://www.vodafone.co.uk/ |
| Vodafone Ltd (C&W) | Vodafone House, The Connection, Newbury, Berks RG14 2FN | 01635 33251 | https://www.vodafone.co.uk/ |
| Vodafone Ltd (Energis) | Vodafone House, The Connection, Newbury, Berks RG14 2FN | 01635 33251 | https://www.vodafone.co.uk/ |
| Vodafone Ltd (Thus) | Vodafone House, The Connection, Newbury, Berks RG14 2FN | 01635 33251 | https://www.vodafone.co.uk/ |
| Vodafone Ltd (YC) | Vodafone House, The Connection, Newbury, Berks RG14 2FN | 01635 33251 | https://www.vodafone.co.uk/ |
| Vodafone Corporate Ltd | |||
| Vodanet Ltd | 29 Avon Road, Hale, Altrincham, Cheshire WA15 0LB | 0161 928 0000 | |
| Vodanile Ltd | 12th Floor, The Broadgate Tower, 20 Primrose Street, London EC2A 2EW | 02035516938 | |
| VODARE | The Apex 2 Sheriffs Orchard, Coventry CV1 3PP | ||
| Vodat International Ltd | Unit A9 Pearmill Estate, Stockport Road West, Bredbury, Stockport SK6 2BP | 0161 406 1820 | |
| Vohkus Ltd | Centurion House, Barnes Wallis Road, Segensworth PO15 5TT | 0845 6470400 | |
| Voice 2 Voice Ltd | Ground Floor, Victory Point, Nelson Court, Staffordshire Technology Park, Stafford ST18 0WQ | 0845 241 8399 | |
| Voice and Data Network Services Ltd | the old fire station, 140 Tabernacle Street, London EC2A 4SD | 020 31501250 | |
| Voice Concepts Ltd | Peel House, 20a Princess Street, Knutsford, Cheshire WA16 6BU | 01565 658480 | |
| Voice Connect Ltd | , 8-10 Fir Tree Lane, Groby, Leicester LE6 0FH | 0116 2322622 | |
| Voice Dat Ltd | Unit 6, Fort Dunlop, Fort Parkway, Birmingham B24 9FD | 0121 748 8484 | |
| Voice Flex | https://www.voiceflex.com/ | ||
| Voice Mobile Ltd | Fort Dunlop, Fort Parkway, Birmingham CV35 9HJ | 0121 748 8484 | |
| Voice On Data Ltd | Unit 5 Saturn House, Calleva Park, Aldermaston, Berkshire RG7 8HA | 08454 667711 | |
| Voice over IP Ltd | 7 Silverdown Park, Fair Oak Close, Exeter, Devon EX5 2UX | 01392 445 566 | https://www.ipofficegroup.co.uk/ |
| Voice Simplified Ltd | Curzon House, 24 High Street, Banstead, Surrey SM7 2LJ | https://www.voicesimplified.com/ | |
| Voice41P Ltd | 30 Modwen Road, Salford, Manchester M5 3EZ | 0161 908 0506 | |
| Voicecom Ltd | Voicecom Buildings, PO Box 801, Sussex RH16 9JY | 0844 880 2820 | |
| Voiceflex Ltd | 9 Warwick Street, London W1B 5LY | 020 3301 6000 | https://www.voiceflex.com/ |
| VoiceHost Ltd | Norfolk Tower, Surrey Street, Norwich NR1 3PA | 0800 2 545454 | https://www.voicehost.co.uk/ |
| Voiceserve Ltd | Berkeley House, 18-24 High Street, Edgware, Middx HA8 7RP | 020 8136 9000 | https://www.voipswitch.com/ |
| Voicetec Systems Ltd | 790 Uxbridge Road, Hayes, Middx UB4 0RS | 020 8561 4250 | https://www.voicetecuk.com/ |
| Voicetech Ltd | First Floor, Unit E & F Old Stratford Business Park, Falcon Drive, Old Stratford, Milton Keynes MK19 6FG | 0845 370 7876 | |
| Voiceworks Ltd | 15 Highgate Edge, Great North Road, London N2 0NT | 0845 241 1414 | |
| VoIP Cheap | https://www.voipcheap.co.uk/ | ||
| VOIP Global Solutions Ltd | No 1 Olympic Way, Wembley, Middlesex HA9 0NP | 020 8434 0590 | |
| Voip IT Solutions Ltd | Old Road, Oxford OX3 8SZ | 01869229229 | |
| Voip Phone Systems Ltd | Woodberry Grove, London N12 0RD | 0808 168 5888 | |
| VoIP Studio | https://www.voipstudio.com/ | ||
| Voip Tec Yorkshire Ltd | 48 Baghill Lane, Pontefract WF8 2HA | 03333583242 | |
| Voip2u Ltd | 32 Mill Road, Magdalen, King's Lynn, King's Lynn PE34 3BZ | 07980266206 | |
| VoIP-4U Ltd | Midsummer Court, 314 Midsummer Boulevard, Central Milton Keynes MK9 2UB | 01908 764196 | https://voip.co.uk/ |
| VoIP4Work Ltd | 145 Godstone Road, Caterham CR3 6RF | 02033583358 | |
| VOIP55 Ltd | 415 High Street, Stratford E15 4QZ | 07903334940 | |
| Voipar Ltd | 11a empire parade, empire way, wembley HA9 0RQ | 02070433771 | |
| Voipar Uk Ltd | 11A EMPIRE PARADE, EMPIRE WAY, MIDDLESEX, WEMBLEY HA9 0RQ | 02070431878 | |
| Voipcom Ltd | 12, Braemar Avenue, Newcastle BT33 0BY | 07719474550 | |
| Voiper | Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ | 0345 900 0181 | https://voiper.com/ |
| Voipfone | https://www.voipfone.co.uk/ | ||
| Voiplicity Ltd | Communications House, 56 Love Lane, Cowes, Isle of Wight PO31 7EU | 0845 024 0000 | https://www.voiplicity.co.uk |
| VoIPLine Telecom LTD | Office 306, 42-46 Hagley road, Birmingham B16 8PE | 020 3411 1310 | |
| VoipPro | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | https://www.voippro.com/ |
| VoIPtalk | https://www.voiptalk.org/ | ||
| VoIP-Un Ltd | 6 Albany Park, Cabot Lane, Poole BH17 7BX | 01202 612000 | https://www.voip-unlimited.net/ |
| VoipWholesaleCompany | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | http://www.voipwholesalecompany.com/ |
| Voisis Ltd | Junction House, Junction EcoJunction House Eco Park, Rake Lane, Swinton M27 8LR | 0843 224 7470 | |
| VOIspeed Ltd | 26 London Road, St Albans, Herts AL1 1NG | 01727 848 186 | |
| VoITel Global LTD | 45 The Burroughs, London NW44AX | 07415886724 | |
| Volcera IoM Ltd | Aizlewoods Mill, Nursery, Sheffield S3 8GG | 0333 577 0760 | |
| Volodi Ltd | 18 Brownlow Road, London E8 4NR | 020 7446 7129 | |
| Vonage | 2 Temple Back East, Temple Quay, Bristol BS1 6EG | 020 7993 9000 | https://www.vonage.co.uk/ |
| Vonect Ltd | Sabichi House - Office 16 5 Wadsworth Road, Perivale, London UB6 7JD | 07831024716 | |
| Voneus Network Managed Services | Block B, 284A Chase Road, Southgate Office Village, London N14 6HF | 01666 800800 | |
| Vorboss Ltd | 1 Quality Court, London WC2A 1HR | 020 3582 8500 | |
| Vortech Ltd | Fetcham Park House, Lower Road, Leatherhead, Surrey KT22 9HD | 01372 371177 | |
| Vortex Computer Solutions Ltd | 18 Heathway, Woodford Green, Essex IG8 7RG | 0845 004 3136 | |
| Vostech Ltd | Unit 11 Swan Barn Business Centre, Old Swan Lane, Station Road, Hailsham, East Sussex BN27 2BY | 01323 887 321 | |
| Vostel Ltd | Unit 11 Swan Barn Business Centre, Old Swan Lane, Station Road, Hailsham, East Sussex BN27 2BY | 01323 884 884 | |
| Vostron Ltd | B Vostron Limited, 2 Venture Road, Southampton Science Park, Southampton SO16 7NP | 02380 111 111 | https://www.vostron.com/ |
| Vox Sciences Ltd | Unit 48, Concord Road, London W3 0TH | 020 7060 0200 | https://www.voxsci.com/ |
| Voxbone SA | Avenue Louise 489, B-1050 Brussels, Belgium | +32 2 808 00 00 | https://www.voxbone.com/ |
| VoxDev | |||
| Voxhub | 3 Centro, Boundary Way, Hemel Hempstead HP2 7SU | 020 3030 3000 | https://www.voxhub.co.uk/ |
| Voxsmart Ltd | 58-64 City Road, Old Street, London EC1Y 2AL | 033 3305 2793 | https://voxsmart.com/ |
| Voxtek Ltd | Bryn Gwynt, Menai Avenue, Bangor, Gwynedd LL57 2HH | 01248 364100 | |
| Voxyonder Network Services UK Ltd | Ty Menter Navigation Park, Abercynon, Mountain Ash CF45 4SN | https://www.voxyonder.com/ | |
| Voyager Networks Ltd | Unit 2 Comet House, Calleva Park, Aldermaston RG7 8JA | 0118 940 8510 | |
| Voyager Systems Ltd | 473 Manchester Road, Stocksbridge, Sheffield S36 1DH | 01142 888472 | |
| Voyced | https://www.voyced.eu/ | ||
| VPW Systems (UK) Ltd | PO BOX 220, Exeter, Devon EX2 8WQ | 0845 003 8114 | |
| VS Telecom Ltd | 90-92 High Street West, Glossop, Derbyshire SK13 8BB | 0161 379 0372 | |
| VSC Ltd | Village Stores, Tilton-on-the-hill, Leicestershire LE7 9LF | 0116 2597 670 | |
| VSL | Unit 1 New Luckhurst Farm, Bethersden, Smarden, Kent TN27 8QT | 0845 258 1500 | |
| VSL Networks Ltd | Unit 6, Martinfield Business Centre, Welwyn Garden City, Herts AL7 1HG | 0800 093 3000 | https://vslgroup.co.uk/ |
| Vtesse Networks Ltd | John Tate Road, Foxholes Business Park, Hertford SG13 7DT | 01992 532100 | |
| VTG Cloud LTD | Unit 3 Millennium House, Priestley Road, Basingstoke RG249GZ | 08702003090 | |
| VTSL Ltd | 5 Nickols Walk, London SW18 1BZ | 020 7078 3200 | https://www.vtsl.net/ |
| Vuecom Ltd | 201 Haverstcock Hill, London NW3 4QG | 07974777775 | |
| Vyke | https://www.vyke.com/ | ||
| Vyke Telecoms Ltd | 83 Baker Street, London W1U 6AG | 020 3137 1569 | https://www.vyke.com/ |
| Vyke Telecoms Ltd | 83 Baker Street, London W1U 6AG | 020 3137 1569 | https://www.vyke.com/ |
| W4 Systems Ltd | The Arch, 48-52 Floodgate Street, Birmingham B5 5SL | 01212790121 | |
| W5 Ltd | Unit 36, 88-90 Hatton Garden, London EC1N 8PN | 0871 268 6080 | |
| Wade IT LLP | 17 Dainton Business Park, Heathfield, Newton Abbot TQ12 6RG | 07919237173 | |
| Walnut Technology Management Ltd | Eventus, Sunderland Road, Market Deeping, Peterborough PE6 8FD | 01733 595200 | |
| Wan Active Ltd | 25 Vineyard way, Kempston, Bedford, Bedford MK428UR | 07803820220 | |
| Wanstor Ltd | 124-126 Borough High Street (First Floor), Bridgegate House, London SE1 1LB | 020 7592 7860 | |
| WardAir Direct Ltd | Unit 1, 10th Avenue West, TVTE, Gateshead NE11 0HL | 0191 487 4041 | |
| Wardman UK Ltd | 7 Easter Inch Court, Easter Inch Industrial Estate, Bathgate EH48 2FJ | 01506 530 393 | https://www.wardmanuk.com/ |
| Wardour Secure Networks Ltd | 21 Wardour Drive, Grantham NG31 9TY | 01476573599 | |
| Warren IT Services Ltd | Unit 12, The Glenmore Centre, Shearway business Park, Pent Road, Folkestone, Kent CT19 4RJ | 01303 770216 | |
| Glide Business Ltd | The Venture Centre Sir William Lyons Road, Coventry, CV4 7EZ | 024 7699 7222 | http://www.warwicknet.com/ |
| Watchfront Ltd | Longstock, Barrack Shute, Niton, Ventnor PO38 2BE | 020 7517 4900 | |
| WaterSkier Software Ltd | 15 Wheeler Avenue, Upper Stratton, Swindon SN2 7HQ | 01793 420764 | |
| Waterstons Ltd | Liddon Court, Aykley Heads, Durham DH1 5TS | 03450940945 | |
| Wave 9 Managed Services Ltd | 1 Hargreaves Court, Dyson Way, Stafford Technology Park, Stafford ST18 0WN | 01785 472200 | |
| Wave Internet Ltd | Little Billinge Scar Barn, Carr Lane, Blackburn BB2 6QT | 01254 377373 | https://waveinternet.co.uk/ |
| Wavecrest UK Ltd | 4-12 Norton Folgate, London E1 6DB | 020 7097 4000 | https://www.wavecrest.eu/ |
| Wavecrest Networks Ltd | 4-12 Norton Folgate, London E1 6DB | 020 7097 4000 | https://www.wavecrest.eu/ |
| Wavehill IT Solutions Ltd | 40 Greenwich Market, London SE10 9HZ | 02082930100 | |
| Wavenet Ltd | One Central Boulevard, Blythe Valley Park, Shirley, Solihull, Birmingham B90 8BG | 033 3234 0011 | https://www.wavenetuk.com/ |
| Wavetel Ltd | 88-90 Goodmayes Road, Goodmayes, Essex IG3 9UU | 020 8597 8872 | https://www.wave-tel.com/ |
| Wavetel Business Ltd | 138 School Avenue, BASILDON SS15 6GJ | 03300882077 | |
| Wavetree Ltd | Hermes House, Andoversford link, Cheltenham GL54 4LB | 07584599267 | |
| Waveworks Ltd | Chapel House, Leicester Road, Loughborough, Leicester LE11 2AF | 0844 561 6100 | |
| Way 2 Communicate Ltd | 134 Hanover Mill, Hanover Street, Newcastle upon Tyne NE1 3AD | 0191 341 0123 | |
| Wayes Telecommunications and Computing Consultancy Ltd | Allandale, 1 Rugby Road, Cubbington, Leamington Spa CV32 7HZ | 01926 316060 | https://www.wayes.com |
| Waytime Technologies Ltd | Trident House, Kingston Road, Leatherhead, Surrey KT22 7LT | 01372 940 290 | |
| WCR Services (Whitchurch) Ltd | Office 8, The Hollies, Chester Road, Whitchurch SY13 1LZ | 01948 759379 | |
| We Do Your Communications | https://www.wedoyourcomms.co.uk/ | ||
| We Love Communications Ltd | 2nd Floor, 22-24 Vittoria Street, Birmingham B1 3PE | ||
| We Solve IT LTD | Dudley House, Millfields Road, Wolverhampton WV4 6JE | 01213140001 | |
| Weald Computer Maintenance Ltd | 53 Perrymount Road, Haywards Heath, West Sussex RH16 3BN | 01444 241 381 | |
| weaveaweb | 10 Evelyn Road, Hockley SS5 4BY | 01702410041 | |
| Web Age Ltd | Walled Garden Cottage, Sundrum, Ayr KA6 5LA | 01292571460 | |
| Webb Computer Solutions Ltd | 89 Pinegrove Road, Southampton SO19 2PP | 02380 445 490 | |
| WebCall Direct | https://www.webcalldirect.com/ | ||
| Webdiscount UK Ltd | 20 Broadwick Street, London W1F 8HT | 02078514514 | |
| WebEngines | 973 Freehall Park, Castlerock BT51 4UT | 07720099598 | |
| Webeye Ltd | 6A Hazel Court, Burma Road Industrial Estate, Blidworth NG21 0RY | 0115 7149990 | |
| Websalesuk.com Ltd | Cenrtix@Newton, Crow Lane East, Newton Le Willows, Merseyside WA12 9UY | 0844 257 1084 | |
| Website Development Ltd | Memorial Hall, Angel Hill, Tiverton EX16 6PE | 01884 233600 | |
| Website Success Ltd | 30 The Hornet, Chichester PO19 7JG | 01243 888555 | |
| Webspace Unlimited | Garreg Fach, Llangadfan SY21 0QH | 08712238872 | |
| Webster IT Ltd | Bramley House, Halam Road, Southwell, Notts NG25 0AH | 01636 819859 | |
| WebStores (UK) Ltd | Prospect House, 11/13 Lonsdale Gardens, Tunbridge Wells, Kent TN1 1NU | 01892 518 666 | |
| WebVentures Ltd | 18 Littledown Ave, Bournemouth BH7 7AN | 03450959990 | |
| Welcome Telecom Ltd | Unit 13, Salmon Springs Trading Estate, Cheltenham Road, Stroud, Glos GL6 6NU | 0800 008 7080 | https://www.welcometelecom.co.uk/ |
| Welcomm Communications Ltd | Welcomm House, 24 The Point Business Park, Market Harborough, Leics LE16 7QU | 01858 410 010 | |
| Welcoms Network Services Ltd | Carne House, Ouse Bank, Selby YO8 5AY | 01757668190 | |
| Well Communications Ltd | The Old School, Burford, Tenbury Wells, Tenbury Wells WR15 8HF | 01584810356 | |
| Wellwood Communications Ltd | Fairbairn House, Fairbairn Place, LIVINGSTON EH54 6TN | 0 333 5 777 300 | |
| Wem Tech Solutions Ltd | 414S CASTLEMILL, BURNT TREE, Dudley DY4 7UF | 01212850606 | |
| Wem Technology Ltd | Savoy House, Savoy Circus, London W3 7DA | 020 3463 4800 | |
| Wessex Comms Ltd | 5 Gymkhana Field,, Bluntshay Lane, Whitchurch Canonicorum, Bridport DT6 6FB | 01308 250 330 | |
| Wessex Networks Ltd | Linchmere Place, Ifield, Crawley, West Sussex RH11 0EX | 01293 542 080 | |
| Wessex Voice and Data Ltd | 42 Gloucester Road, Rudgeway, Bristol BS35 3RT | 01454 648802 | |
| West Cloud Contact Solutions Ltd | 5 Arlington Square, Downshire Way, Bracknell, Berks RG12 1WA | 020 3194 7001 | https://www.westuc.com/ |
| West Communications Ltd | Unit 1 Bucklers Lane, Holmbush, St Austell PL25 3JN | 0172673361 | |
| West IP Ltd | 36, High Street, Acton, London W3 6LG | 0203 645 2558 | |
| West One Technical Ltd | 104 Harley Street, London W1G 7JD | 02070344880 | |
| West Pier Telecom Ltd | 2 Woodingdean Business Park, Sea View Way, Brighton BN2 6NX | 0844 264 5522 | |
| West Wales Systems Ltd | 2 Castleton Grove, Pembrokeshire SA62 4AF | 01437700701 | |
| West Wales Telecom Ltd | Camrose Lass, Portfield Gate, Haverfordwest SA62 3LS | 01437 760 200 | |
| Westaget IT Ltd | 12 Riverside Court, Lower Bristol Road, Bath BA2 3DZ | 0845 0178852 | |
| Westbrook Communications (UK) Ltd | Unit 9 SpectrumBusiness Estate, BircholtRoad, Maidstone, Kent ME15 9YP | 01622808680 | |
| Westbrook Computers Ltd | The Cedars, Bay Lane, Gillingham SP8 4ER | 01747 228535 | |
| Westcom (SW) Ltd | 7 The Mall, Clifton Village, Bristol BS8 4DP | 0117 985 0383 | |
| Westcom Network Solutions Ltd | Unit 1 Beech Business Park, Tillington Road, Hereford HR4 9QL | 01432 274 210 | |
| Westend Telecoms Ltd | 24 New Wharf Road, London N1 9RR | https://www.westendtelecoms.com/ | |
| Westnetworks Innovations Ltd | 11 Alstone Road, Highbridge TA9 3DT | 08006102109 | |
| Weston Communications Ltd | Network House, Whitehall Industrial Estate, Whitehall Road, Leeds LS12 5JB | 0113 389 0800 | |
| WestSpring IT Limtited | Filwood Green Business Park, BRistol BS41ET | 07590894757 | |
| Westtek Solutions Ltd | 3rd Floor, The Heights, 59-65 Lowlands Road, Harrow HA1 3AW | 020 3195 0555 | |
| Weticulum Technologies Ltd | 11 St Edmund Road, Weeting, Brandon, Suffolk IP27 0QY | 01842813601 | |
| whirlweb | 12 worcester avenue, mansfield NG19 8QD | 01623 857973 | |
| White Computers LTD | 54 Cheverell Avenue, Salisbury SP1 3HQ | 0345 230 4077 | |
| White Fluffy Cloud Ltd | 10 Bath Road, Old Town, Swindon SN1 4BA | 01793 250000 | |
| White Horse Telecom Ltd | The Old Stables, Well Street, Burghclere, Newbury, Berkshire RG20 9ND | 0845 367 1144 | https://www.whitehorsetelecom.co.uk/ |
| White Star Communications Ltd | The Old Plough, The Green, Stretton on Fosse GL56 9SQ | 07973116063 | |
| White Stone IT Ltd | 21-22 GlassHouse Studios, Fryern Court Road, Fordingbridge SP6 1QX | 01425517555 | |
| White Tiger Group Ltd | 111 Ross Walk, Leicester LE4 5HH | 0116 2668969 | |
| Whitebarn PC Services Ltd | Units 2-3 30 West Street, Coggeshall CO6 1NS | 01376563959 | |
| Whitehelm Network Security Ltd | Hexagon House, Avenue FourAvenue Four Station Lane, Witney OX28 4EW | 01993 623 010 | |
| Whiteley Technologies Ltd | 482 Bursledon Road, Southampton, Hampshire SO19 8NH | 07894 909 797 | |
| Whitmee Engineering Ltd | 2 Hall Park, Lancaster LA1 4SH | 01524 230 032 | |
| WHL Communications Ltd | 6 St Georges Yard, Castle Street, Farnham, Surrey GU9 7LW | 01252 411 240 | |
| Whypay? Ltd | 5th Floor, Oxford Place, 61 Oxford Street, Manchester M1 6EQ | 033 3443 3366 | https://whypay.net/ |
| Whytec Ltd | 48 Bridge Road, Cosgrove, Milton Keynes MK19 7JH | 01908 260 223 | |
| Wick Hill Ltd | River Court, Albert Drive, Woking, Surrey GU21 5RP | 01483 227 600 | |
| Wicresoft Uk Ltd | Edgerton Villa, 22-24, Edgerton Road, Huddersfield HD3 3AD | 03707551515 | |
| Wide FM | https://www.widefm.co.uk/ | ||
| Widefm Ltd | Unit W, Longmeadow Industrial Estate, Three Legged Cross BH21 6RD | 01202332331 | |
| Widewell Communications | 49 Lulworth Drive, Plymouth PL6 7DT | 01752 721 226 | |
| WiFi Scotland | https://www.wifiscotland.co.uk/how-it-works/ | ||
| WIFI SCOTLAND LLP | Taigh Na Siach, Boharm, Craigellachie, Aberlour AB38 9RN | 01343666002 | |
| WiFi SPARK Ltd | 5 Cranmere Court, Lustleigh Close, Exeter EX2 8PW | 03448489555 | |
| Wifinity LTD | Unit 14 Kingsmill Business Park, Chapel Mill Road, Kingston Upon Thames KT13GZ | 02080901290 | https://www.wifinity.co.uk/ |
| Wifirst UK Ltd | 5 Cavendish Square, London W1G 0PG | +44 (20) 38071696 | |
| Wight Wireless | https://www.wightwireless.net/ | ||
| Wightbyte Computers | Unit 15 Prospect Business Centre, Prospect Road, Cowew PO31 7AD | 01983 299999 | |
| WightFibre Ltd | Communications House, 56 Love Lane, Cowes, Isle of Wight PO31 7EU | 01983 295050 | https://www.wightfibre.com/ |
| Wildanet Ltd | Goonhilly Earth Station, Goonhilly Downs, Helston TR12 6LQ | 01326567246 | |
| Wildcard UK Ltd | Reliance House, Skinnerburn Road, Newcastle upon Tyne NE4 7AN | 0845 165 1510 | |
| Wilde Stuff Ltd | 2 Staplake Mount Cottages, Wordsley, Starcross EX6 8PF | 01392346340 | |
| Willdiffer Ltd | 62 Back Street, South Creake, Fakenham NR21 9PG | 07854725325 | |
| williams ironmongery ltd | unit 89, hartlebury trad estate, worcester DY10 4JB | 01299250824 | |
| Wi-Manx Ltd | 1st Floor Heywood House, Ridgeway Street Douglas, Isle of Man IM1 1EW | 01624 641188 | https://www.wimanx.com/ |
| Wimborne Business Systems Ltd | Shears Building, Stone Lane Industrial Estate, Wimborne BH21 1HD | 01202 849492 | |
| Wimpo Telecom Ltd | 12 Helmshorw Walk, Brunswick, Manchester M13 9TH | 01612759748 | |
| Windsor Telecom PLC | Riverside House, 4 Meadows Business Park, Camberley GU17 9AB | 033 3123 8080 | https://www.windsor-telecom.co.uk/ |
| Wire Network Ltd | 290 Moston Lane, Manchester M40 9WB | 01613936204 | |
| Wirebird Ltd | Aquatical House, 39 Bell Lane, London E1 7LU | 020 7650 6664 | |
| Wired Up Communications | 25 Hatton Gardens, Nuthall, Nottingham NG16 1QT | 0845 845 0001 | |
| Wirefast Ltd | Willow House, 17-23 Willow Place, LONDON SW1P 1JH | 020 7592 1314 | |
| Wirehive Ltd | 23-24 Hercules Way, Farnborough GU14 6UU | 01252 560 565 | |
| Wireless Edge Communications Ltd | Bridge House, London Bridge, London SE1 9QR | 020 8150 1392 | http://www.wirelessedge.net/ |
| Wireless Hotspot Zone Ltd | 39, eastcote lane, Middlesex, northolt UB5 5RG | 0207262 1038 | |
| Wireless Internet UK Ltd | 30 Wellbrook Way, Girton, Cambridge CB3 0GP | 07825 138 933 | |
| Wireless Shack | 15 station Street, Stoke ST6 4ND | 01782824804 | |
| Wireless Telecommunications Ltd | 845 The Crescent, Colchester Business Park, Colchester, Essex CO4 9YQ | 01206 848 090 | |
| Wirral Telecom Ltd | 367 Woodchurch Road, Prenton, Wirral, Wirral CH42 8PE | 01516093400 | |
| Wirral-Net Ltd | 8c kirkstone road north, Bootle L21 7NS | 01516784545 | |
| Wise Utility Telecoms Ltd | 84 Kingsley Road, Hounslow TW3 1QA | 02035423666 | |
| Wiser Telecoms Ltd | 83-85 Dean Road, Scarborough YO12 7QS | 0333 772 0125 | |
| Wiseserve Ltd | 154 Oxford Road, Oxford OX4 2EA | 01865451177 | |
| Wish Communications | https://www.olive.co.uk/ | ||
| Wish Solutions (GB) Ltd | Unit 7a Burcote Wood Farm Business Park Wood Burcote Towcester Northamptionshire NN12 8TA | 0845 678 8848 | |
| Wish Solutions (GB) Ltd | Unit 7a Burcote Wood Business Park, Wood Burcote, Towcester, Northants NN12 8TA | 01327 359111 | |
| Wisper Broadband Ltd | The Old School Building, Churchill Street, HULL HU9 1RR | 01482 363638 | https://www.wisperbroadband.com/ |
| WiSpire Ltd | Diocesan House, 109 Dereham Road, Easton NR9 5ES | 01603 559959 | |
| Wisynergy Ltd | 7 Blenheim Rise, Randwick, Stroud GL6 6FA | 07732604461 | |
| Wizaner Ltd | 61 Charlotte Street, Birmingham B3 1PX | ||
| Wizards Ltd | PO Box 255, Great Missenden, Bucks HP16 9SD | 0333 241 7707 | https://www.wizards.co.uk/ |
| Wize Analytics Ltd | Unit 12 Westway Business Centre, Marksbury, Bath BA2 9HN | ||
| Wls IT Solutions Ltd | 112-118 Worcester Road, Malvern WR14 1SS | 01684214949 | |
| WM Solutions (Scotland) Ltd | Falkirk Business Hub, 45 Vicar Street, Falkirk FK1 1LL | 0345 241 1664 | |
| WM Solutions UK Ltd | Hilton Hall, Essington, Wolverhampton WV112BQ | 01902722772 | |
| WM Telco Solutions | 127 Bennerley Rd, London SW11 6DX | 02077382575 | |
| WMC Midlands Ltd | 27 Aldeney Close, Dudley DY1 4AJ | 01212881000 | |
| WMY Systems ltd | Friendly Cottage Farm, Haverthwaite, Ulverston, Cumbria LA12 8AA | 01229808146 | |
| Wodehouse IT Ltd | 177 Bramhall Lane, Davenport, Stockport SK2 6JA | 0845 638 5214 | |
| Wood Computer Systems | 21 Cookridge Lane, Leeds LS16 7LQ | 0113 2817476 | |
| Woodcote Telecom | Electra House, Electra Way, Crewe Business Park, Crewe CW1 6WZ | 0870 300 6767 | |
| Woodford Computers Ltd | Essex Technology & Innovation Centre, The Gables, Fyfield Road, Ongar, Essex CM5 0GA | 01277 368214 | |
| Woods Communications Ltd | 28 Crate, 15 Oakwood Hill Industrial Estate, Oakwood Hill, Loughton IG10 3TZ | 02036406999 | |
| WorkAir Ltd | Unit 1 Slator Hose, Sandgate, Burnley BB11 1BU | 0161 902 3726 | |
| Workflo Solutions (Scotland) Ltd | Workflo House, 15 Shairps Business Park, Livingston EH54 5FD | 03333003250 | |
| Workflow Audio Visual Ltd | Barton House, 14 Faldo Road, Barton Industrial Estate, Barton Le Clay MK45 4RP | 03455 217444 | |
| Workflow Integrated Networks Ltd | Chiltern House, Faldo Road, Barton Le Clay MK45 4RP | 01582 885050 | |
| Workflow Managed Networks Ltd | Victory House, Chobham Street, Luton, Bedfordshire LU1 3BS | 0845 270 5071 | |
| Working IT Solutions LTD | 100 Lissadel Street, Salford, Manchester M6 6BP | 0161 736 9600 | |
| Working Technologies Ltd | 5 UNIVERSAL MARINA CRABLEK LANE, SOUTHAMPTON SO317AL | 01489555930 | |
| Worknet Computer Solutions Ltd | James House, Mere Park, Marlow, Bucks SL7 1FJ | 01628 560 120 | |
| Workplacelive Ltd | 7th Floor Davis House, Robert Street, Croydon CR0 1QE | 02085433322 | |
| Worksmart Technology Ltd | |||
| World Connect Ltd | Aizlewood?s Mill, Nursery Street, Sheffield S3 8GG | 0800 980 2020 | |
| Worldnet Connect Ltd | Copthall Bridge House, Station Bridge, Harrogate HG1 1SP | 01423530726 | |
| Worldnet Global Communications Ltd | WORLDNET HOUSE, UNIT 8, LIBERTY CENTRE, MOUNT PLEASANT, WEMBLEY HA0 1TX | 0845 108 1000 | |
| WorldNet Telecom LLP | Town Centre House, Cheltenham Crescent, Harrogate HG1 1DQ | 01423530726 | |
| Worlds End Studios Ltd | Worlds End Studios, 132-134 Lots Road, LONDON SW10 0RJ | 08454 567 019 | |
| Worldwide IPGENIE Ltd | Unit 2 Bushmills Business Park, Coleraine, County Londonderry BT52 2BY | 02870 348 042 | |
| Worth Comms Ltd | Branwell House, Park Lane, Keighley, W Yorks BD21 4QX | 01535 691 507 | |
| Worthmanor Ltd | Pure Offices, Cheltenham Office Park, Hatherley Lane, Cheltenham GL51 6SH | 01242 303 303 | |
| Worx24 Ltd | MacKenzie Cottage, 302 Colinton Road, Colinton, Edinburgh EH13 0LE | 01315109300 | |
| Wowtel Ltd | Suite 3, Richmond House, Richmond Hill, Bournemouth BH2 6EZ | 0800 228866 | https://wowtel.com |
| Wp Connect Ltd | Unit 203, East Poultry Avenue, Farringdon, London EC1A 9LH | 020 3633 3182 | |
| Wrekin Net | 3 James Clay Court, Ketley, Telford TF1 5DW | 07587045880 | |
| WRKBR Ltd | 20-22 Wenlock Road, London N1 7GU | 07727616911 | |
| WRS ITT | Griffin House, Don Pottery Yard, Swinton, Mexborough S64 8AA | 01709588773 | |
| WT Communications Ltd | 8 Lightwoods Road, Smethwick, West Midlands B67 5AY | 0845 270 1023 | |
| WW Computer Systems Ltd | Ground Floor, Unit One, The Exchange, Brent Cross Gardens, London NW4 3RJ | 020 8958 1347 | |
| Www Webmaster Ltd | 3 Brecon Close, Grantham NG31 8FX | 07708368585 | |
| Wyehost Ltd | 3 StMarys Street, Ross on Wye HR9 5HT | 01989760900 | |
| Wynsoft Solutions Ltd | 1st Floor, 2 Kings Row, Armstrong Road, Maidstone ME15 6AQ | 01622474123 | |
| Wyre Communications Ltd | |||
| Wytech Ltd | The College Business Centre, Uttoxeter New Road, Derby DE22 3WZ | 03333 052 101 | |
| Wyvern Business Systems Ltd | Wyvern House, Netherwood Rd, Hereford HR2 6JJ | 01432271233 | |
| WZHI (Tech) Ltd | Unit 5 West Wing, Sterling House, Langston Road, Essex IG10 3TS | 020 8090 5194 | |
| X Kommunications Ltd | 268 Bath Road, Slough SL1 4DX | 08454 58 58 10 | |
| X.COMMunications Ltd | 10 Byron Close, Stafford ST16 3NY | 0333 101 7200 | |
| X2 Communications Ltd | Unit 2, Moss Lane Business Centre, Moss Lane, Sandbach, Cheshire CW11 3YX | 0845 688 3990 | |
| X22 Data Ltd | Inverbeg, 22 Hepburn Gardens, St Andrews KY16 9DE | 07912079065 | |
| X30 Group Ltd | 67 Agincourt Road, Lichfield WS14 0GH | 08456442925 | |
| Xalient Ltd | 1 Fore Street, London EC2Y 5EJ | 07802878085 | |
| Xara Computers (UK) Ltd | 2nd Floor Kajaine House, 57-67 High Street, Edgware HA8 7DD | 0844 499 4992 | |
| XCelsus Ltd | 210 Kerscott Road, Manchester M23 0GP | 03300882670 | |
| Xcess Telecom Ltd | 18-24 Stoke Road, Slough SL2 5AG | 03301240706 | |
| XConnect Global Networks | Cooper House, 316 Regents Park Road, London N3 2JX | 020 8371 4800 | https://www.xconnect.net/ |
| Xd-It Services Ltd | 108 Turntable Avenue, Aston Fields, Bromsgrove, Worcestershire B60 3SP | 07523785471 | |
| Xenace Ltd | 71-75 Shelton Street, London WC2H 9JQ | 03334444402 | |
| Xenon IT Management Ltd | UNit 3, Tungsten Building, George St, Portslade BN41 1RA | 01273311326 | |
| Xero 9 | Dissolved on 7 January 2014 | ||
| Xi Communications Ltd | 4 Highcliffe Court, Greenfold Lane, Wetherby LS22 6RG | 0330 333 9200 | |
| Xifos Ltd | 58 Portman Road, Reading, Berkshire RG40 1EA | 0118 321 9944 | |
| XILO Communications Ltd | 9 Bentick Street, West End, London W1U 2EL | 0345 642 0340 | |
| Xinix (Aertel Ltd) | 252a Green Lanes, Palmers Green, London N13 5TU | 033 305 8888 | https://www.xinix.co.uk/ |
| Aertel Ltd | 252a Green Lanes, Palmers Green, London N13 5TU | 033 0088 2227 | http://www.xinixworld.com/ |
| Xirco Ltd | The Innovation Centre, Sci-Tech Daresbury, Keckwick Lane, Daresbury WA4 4FS | 01925 640 143 | |
| Xiria Ltd | Unit 2a Stanhope Gate, Stanhope Road, Camberley, Surrey GU15 3DW | 01252 933633 | |
| Toffoo Ltd | Wye View House, Bigstone Meadow, Tutshill, Glouchestershire NP16 7JU | ||
| XL42 | 158 Pandy Road, Bedwas, Caerphilly CF83 8EP | 02920020210 | |
| XLN Telecom Ltd | First Floor, Millbank Tower, 21-24 Millbank, London SW1P 4QP | 0844 880 7777 | https://www.xlntelecom.co.uk/ |
| X-Net Solutions (Oxford) Ltd | unit 1a Lakeside Farm Middle Aston, Oxford OX255PP | 01869 349250 | |
| XOLOX | 3 James Clay Court, Ketley, Telford, Telford & Wrekin TF1 5DW | 07587045880 | |
| Xoncomms Ltd | 16 Ravenswood Avenue, Tunbridge Wells TN2 3SG | 01892883177 | |
| Xoocafe Ltd | Hillingdon House, 386-388 Kenton Rd, Harrow HA3 9DP | 02033979755 | |
| Xoom Ltd | Level 6, Vantage Point, New England Street, Brighton BN1 4GW | 01273 900090 | https://www.xoomtalk.com/ |
| Xoomtalk | https://www.xoomtalk.com/ | ||
| XoverX Ltd | 46 Ilford Hill, Ilford IG1 2AT | 020 7169 7777 | https://www.xoverx.com/ |
| Xpertex.co.uk Ltd | 26 Bridge Road East, Welwyn Garden City AL7 1HL | 0845 034 1412 | |
| X-Pilot Ltd | (in administration) | ||
| Xtra Phones Uk Ltd | First Floor, C2 Haughmond View, Shrewsbury Business Park, Shrewsbury SY2 6LG | 01743 598025 | |
| Xzit Ltd | The Studios, Mansell Road, Wellington, Telford SHROPSHIRE | 0333 0165 959 | |
| Y TEL Ltd | Dissolved on 5 February 2013 | ||
| Yab Telecom | 26 Westgate, Rotherham, South Yorkshire S60 1AP | 01709 537 524 | |
| Yachtcomms Ltd | 87 Kings Drive, Surbiton KT5 8NH | 020 8339 6535 | |
| Yappl Ltd | Contract House, Turnpike Business Park, Alfreton DE557AD | 03333448290 | |
| YapYap Communications Ltd | 116 Duke St, Liverpool L1 5JW | 0345 345 3500 | |
| Yardi Systems Ltd | Suite 2b, 1 Pitt Terrace, Stirling FK8 2EZ | 01786 230 830 | |
| Yarm Computers Ltd | 149a High Street, Yarm TS15 9AY | 0800 564 2800 | |
| Yaya Telecom Ltd | 160 Kemp House, London EC1V 2NX | 08002465682 | |
| YayYay Ltd | Westbury House, 15 Bury Street, Guildford GU2 4AW | 033 0122 6000 | https://www.yay.com/ |
| Yayzi Group Ltd | 114, London Street, Lancashire, Fleetwood FY7 6EU | 0333 339 1761 | |
| YB Communications LTD | Suite E, Chengate House,, 61 Pepper Road, Leeds LS10 2RU | 0845 862 1420 | https://www.ybcommunications.co.uk/ |
| YCV Business Telecoms Ltd | 172 Colchester Road, Ipswich, Suffolk IP4 4RS | 0800 862 0097 | |
| Yellow Arrow Technical Services | 4 Marshall Crescent, Wordsley, Stourbridge DY8 5TA | 01384 880001 | |
| Yellow Com Ltd | 200 Bath Street, Glasgow G2 4HG | 0141 882 4563 | |
| Yellowbus Solutions Ltd | Chadwick House, Birchwood Park, Warrington WA3 6AE | 01925 838 386 | |
| Yellowgrid Ltd | The Old Police Station, 22 Hind Hill Street, Heywood OL10 1AQ | 01706 398602 | |
| Yellowspring Plc | 1 Aurum Court, Sylvan Way, Laindon,Basildon, Essex SS15 6TH | 01268 494 111 | |
| Yellowstone Electronic Solutions Ltd | 17 Lyneham Road, Luton LU2 9JS | 01582 656 000 | |
| Yendell Ltd | 83 Church Road, Addlestone, Surrey KT15 1SF | 01932 850 202 | |
| Yes Computers Stourbridge Ltd | 156 Hagley Road, Oldswinford, Stourbridge DY8 2JL | 01384 370990 | |
| Yes Technology Solutions Ltd | Trinity Court, 2-4 West Street, Fareham PO16 0BH | 02392678800 | |
| Yescomms Ltd | Unit 4H, Great Barr Business Park, Baltimore Road, Birmingham B42 1DY | 01213570999 | |
| Ylo Ltd | 85 Great Portland Sreet, London W1W 7LT | 01604946888 | |
| YO Network Services Ltd | Second Floor, 6 Brookvale Road, Highfield, Southampton SO17 1QL | 02380 322477 | |
| Yolo Internet Ltd | International House, 64 Nile Street, London N1 7SR | 07853827695 | |
| Yookal | 10 Meenagar Rd, Fintona, Co.Tyrone, Omagh BT78 2LE | 08451399798 | |
| Yoozoom Ltd | Unit 8 Gemini Business Park, Sheepscar Way, Leeds LS7 3JB | 0113 887 800 | |
| Yoozoom Telecom | https://yoozoom.co.uk/ | ||
| Yorcoms Ltd | Community House, Portholme Crescent, Selby YO8 4QQ | 03301221091 | |
| York Data Services Ltd | 3 Innovation Close, York Science Park, Heslington, York YO10 5ZF | 01904 217000 | https://www.yorkdataservices.com/ |
| York UK Hosting Ltd | 32 Clover Lane, Wall Heath DY6 0DT | 01788 298 210 | |
| Yorkshire Business Systems Ltd | 4 Carron Drive, Mapplewell, Barnsley, South Yorkshire S75 6GA | 01226 391 770 | |
| Yorkshire Cloud (UK) Ltd | 55 Grove Road, Harrogate HG1 5EP | 01423206062 | |
| Yorkshire Tech Ltd | Blake House, 18 Blake Street, York YO1 8QG | 01904374000 | https://www.yorkshiretech.com/ |
| Yorkshire Telecommunications Ltd | |||
| Your Call Ltd | (liquidated) | ||
| Your Cloud Works Ltd | Suite 14, Shenley Pavilions, Chalkdell Drive, Shenley Wood, Milton Keynes MK5 6LB | 01908410261 | |
| Your Company Mobiles Ltd | 84 Uxbridge Road W13 8RA | 0800 038 5363 | |
| Your Digital Solutions (Devon) Ltd | 35 Colley End Road, n/a, n/a, Paignton TQ3 3DG | 01803416230 | |
| Your IT Department Ltd | NBV Enterprise Centre, David Lane, Nottingham NG6 0JU | 0115 8220 200 | |
| Your IT Director LTD | 23 Oliver Road, St Helens WA103EP | 07979692910 | |
| Your IT Man Ltd | Chapter House, Suite 10, 33 London Road, Reigate, Surrey RH2 9HZ | 01737 308 648 | |
| Your Own Cloud Ltd | 39 Chobham Road, Woking GU216JD | 02037640985 | |
| Your PC Ltd | New Gallery, Haringey Park, London N8 9HY | 020 8342 5010 | |
| Your Telecoms Expert Ltd | 66 Alfreton Road, Newton, Derbyshire DE55 5TQ | 01332220584 | |
| yourmobile.com | https://www.yourmobile.com/ | ||
| Youtech Solutions Ltd | Unit, 5, Dodson Way, Peterborough PE1 5XJ | 01733612095 | |
| YTEL Communications Ltd | 2B Portelet Place, Hedge End, Southampton SP30 0LZ | 023 9267 8800 | |
| Yumna Solutions Ltd | 11 Meadow Lodge, Talbot Close, Mitcham CR4 1FN | 03334567365 | |
| Z UK IT | 20 Shakespeare Crescent, Dronfield, Derbyshire S18 1QQ | 01246 888 504 | |
| Z1 Telecom Ltd | Enterprise House, 20 'b' Dale Road, Marple, Stockport, Cheshire SK6 6HA | 0870 050 8021 | https://www.z1telecom.com/ |
| Zagonia Ltd | 8th Floor, Farringdon Street, London EC4A 4AB | 03335779558 | |
| Zaman Solutions ltd | Kemp House, 152 City Road, london EC1V 2NX | 02035405140 | |
| Zamir Telecom Ltd | City Reach, 7th Floor, 5 Greenwich View Place, Millharbour, London E14 9NN | 020 7870 3480 | http://www.zamirtelecom.com/ |
| Zapappi Ltd | Whiteley Mill, 39 Nottingham Road, Stapleford, Nottingham NG9 8AD | 033 0320 3333 | https://www.zapappi.com/ |
| Zarr Ltd | 13a Davy Court, Central Park, Rugby CV23 0UZ | 01788820900 | |
| Zeaba Solutions Ltd | 14 Nicholas Lane, London EC4N 7BN | 020 7989 0250 | |
| Zead | The Grange, Grange Lane, Balby, Doncaster DN4 9BB | 01302858365 | |
| Zed One Technology Ltd | One Kingsmill Business Park, Kingston Upon Thames, Surrey KT1 3GZ | 020 3326 0200 | |
| Zed Solutions For Business Ltd | 50 wakering road, Barking, Essex IG11 8GN | 07914070705 | |
| Zen Internet | Sandbrook Park, Sandbrook Way, Rochdale OL11 1RY | 01706 902000 | https://www.zen.co.uk/ |
| Zen Systems Ltd | Paragon House, 35 Lower Brook Street, Ipswich IP4 1AQ | 01473760021 | |
| Zencom Telecommunications Ltd | 16 Hanover Square, Mayfair, London W1S 1HT | 020 7111 0100 | https://www.zencomtele.com/ |
| Zenos IT Ltd | Collingwood Buildings, 38 Collingwood Street, Newcastle upon Tyne NE1 1JF | 08448005350 | |
| Zentel Telcom LTD | 12 Hill Street, Ashby de la Zouch LE65 2LS | 07971 674482 | |
| Zenzero Solutions Ltd | Innovation Centre, Warwick Technology Park, Gallows Hill, Warwick CV34 6UW | 0333 3209 900 | https://zenzero.co.uk/ |
| Zepler Systems Ltd | Zepler Systems Limited, 3rd Floor, 82 King Street, Manchester M2 4WQ | 0844 567 5640 | |
| Zest Solutions | Zestland 22, Ruxox Wing, Flitwick MK45 1AH | 0800 566 8888 | |
| All Communications | https://www.zest4.com/ | ||
| Zestel Ltd | 20-22 Wenlock Road, London N1 7GU | ||
| Zetnet | https://www.zetnet.net/ | ||
| Zetta Connect Ltd | 3 Fabian Road, London, England, London SW6 7TY | 0203 947 6590 | |
| Ziron Ltd | 27 Old Gloucester Street, London WC1N 3AX | 020 3404 5006 | https://www.ziron.com/ |
| Zoe Sparks Ltd | 31 Portland Place, Greenhithe, kent DA9 9FE | 07796574123 | |
| Zoisca Ltd | Unit 2. Arran House, St James Avenue, Bury BL8 1TD | 01616520005 | |
| Zomp Solutions (UK) Ltd | Unit 7, The Elms, Church Road, Harold Wood, Romford RM3 0JU | 02071932055 | |
| Zone Business Solutions Ltd | 36 Church Street, Oughtibridge, Sheffield S35 0FW | 0114 229 9132 | |
| Zone Telecommunications Ltd | Edenthorpe, Grove Road, Rotherham S60 2ER | 01142993212 | |
| Zoopa Ltd | 18 Calder Avenue, Fleetwood FY7 8DR | 01253870281 | |
| ZoopaChat Ltd | 66 CROHAM VALLEY ROAD, South Croydon CR2 7NB | 07789220007 | |
| Zooter Digital Ltd | 64, Rathmell Drive, Clapham, London SW4 8JN | 07847755345 | |
| Zsquare Global Solutions Ltd | 5 Capital Business Park, Manor Way, Borehamwood WD6 1GW | 020 8731 3888 | https://zsgs.co.uk/ |
| Zusi Ltd | International House, Stubbs Gate, Newcastle, Staffordshire ST5 1LU | 01782 792163 |
Please email any comments or corrections about the Telecom Tariff Comparisons
Return to Telecom Introduction Page
Return to Magenta Home Page
Copyright © 2021 Magenta Systems Ltd, England. All Rights Reserved.