• 141 Telecom
  Waterside Chambers, Bridge Barn Lane, WOKING, Surrey, GU21 6NL
• 31e Cellular
  Westworld, West Gate, LONDON, Greater London, W5 1XP
• 3c
  40 Marsh Wall, LONDON, Greater London, E14 9TP
• A A Communications
  174 Brabazon Road, HOUNSLOW, Middlesex, TW5 9LP
• Ace Comm Solutions
  24 Alie Street, LONDON, Greater London, E1 8DE
• Advanced Data
  Elan House, 135 Ewell Road, SURBITON, Surrey, KT6 6AL
• Advanced Video Technologies Ltd
  28 Red Post Hill, LONDON, Greater London, SE24 9JQ
• Alternative Networks TS Ltd
  56 Chatfield Road, LONDON, Greater London, SW11 3UZ
• Amnico
  4-5 Coleridge Gardens, LONDON, Greater London, NW6 3QH
• Analysys Mason Group Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Answer Communications
  1 Colney Hatch Lane, LONDON, Greater London, N10 1EA
• Antelope Consulting International Ltd Liability Partnership
  99 Monkhams Avenue, WOODFORD GREEN, Essex, IG8 0ER
• Arkadin UK Ltd
  26-28 Hammersmith Grove, LONDON, Greater London, W6 7JA
• Association Of Call Handling
  3 The Shrubberies, George Lane, LONDON, Greater London, E18 1BD
• At Your Call
  Birch Close, BUCKHURST HILL, Essex, IG9 6HR
• BB Telecoms Consultancy
  27 Newhaven Crescent, ASHFORD, Middlesex, TW15 1PB
• BH Communications
  Suite 33, 10 Barley Mow Passage, LONDON, Greater London, W4 4PH
• BRC Consultancy Ltd
  Berkeley Square House, Berkeley Square, LONDON, Greater London, W1J 6BD
• Bci Consultants Llp
  10 Copsem Lane, ESHER, Surrey, KT10 9EU
• Beagle Communications
  43 Heddon Court, Cockfosters Road, BARNET, Hertfordshire, EN4 0DF
• Bhausman Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Blue Saffron Ltd
  Shakeshere House, 168 Lavender Hill, LONDON, Greater London, SW11 5TF
• Blue Square Telecom
  Albert Buildings, 49 Queen Victoria Street, LONDON, Greater London, EC4N 4SA
• Bradley Businesscore
  New Haven, Pyrford Woods Road, WOKING, Surrey, GU22 8QR
• Brecknock Telecommunication
  29 Brecknock Road, LONDON, Greater London, N7 0BT
• Bridgegate Communications Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• Broadsystems
  14 Flood Walk, LONDON, Greater London, SW3 5RG
• Business Telecommunications Services Ltd
  Wood End, The Friary, Old Windsor, WINDSOR, Berkshire, SL4 2NR
• Businesscall Ltd
  New Haven, Pyrford Woods Road, WOKING, Surrey, GU22 8QR
• C S Telecom Ltd
  23 Skylines Village, Limeharbour, LONDON, Greater London, E14 9TS
• C.F.M Communications
  Empire House, Empire Way, WEMBLEY, Middlesex, HA9 0EW
• C4communication Ltd
  Empire House, Empire Way, WEMBLEY, Middlesex, HA9 0EW
• CCG Corporate Consulting Group Ltd
  Nash House, Repton Place, AMERSHAM, Buckinghamshire, HP7 9LP
• Candela Communications Ltd
  50 Long Acre, LONDON, Greater London, WC2E 9JR
• Cartesian Ltd
  The Descartes House, Gate Street, LONDON, Greater London, WC2A 3HP
• Cascadia Connections
  47 Blandford Road, LONDON, Greater London, W4 1EA
• Catalyst Ltd
  31 Paxton Road, LONDON, Greater London, W4 2QT
• Certain Communications Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Ch2m Hill
  Ambassador House, Paradise Road, RICHMOND, Surrey, TW9 1SQ
• Cicero Strategy
  ST. Petersburgh Place, LONDON, Greater London, W2 4JY
• Ciena Ltd
  Ciena House, 43-51 Worship Street, LONDON, Greater London, EC2A 2DX
• City Lifeline Ltd
  Lifeline House, 80 Clifton Street, LONDON, Greater London, EC2A 4HB
• Class Systems Ltd
  The White House, 18 Church Road, LEATHERHEAD, Surrey, KT22 8BB
• Clighton Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Commonwealth Communications Ltd
  26 York Street, LONDON, Greater London, W1U 6PZ
• Commquest UK Ltd
  12 Guilford Avenue, SURBITON, Surrey, KT5 8DQ
• Comsult Services Ltd
  87 Gallows Hill Lane, ABBOTS LANGLEY, Hertfordshire, WD5 0DD
• Coppweb
  198 Addiscombe Road, CROYDON, Surrey, CR0 7LB
• Corex Networks
  34-36 High Holborn, LONDON, Greater London, WC1V 6AE
• Cortel Chelsea
  1 Cremorne Road, LONDON, Greater London, SW10 0NA
• Cream Communications Consultan Cy
  500 High Road, WOODFORD GREEN, Essex, IG8 0PN
• Crowthorne Assist Ltd
  Unit 8 Tavern Quay Commercial Centre, Rope Street, LONDON, Greater London, SE16 7TX
• Cypher 7 Ltd
  38 Barlby Road, LONDON, Greater London, W10 6BL
• D Mason
  New Gallery House, 6 Vigo Street, LONDON, Greater London, W1S 3HF
• D.S.P.G. Ltd
  253a Kilburn Lane, LONDON, Greater London, W10 4BQ
• DPN Solutions
  68 High Street, CHISLEHURST, Kent, BR7 5AQ
• Datasharp Voice Solutions
  50 Lonsdale Road, LONDON, Greater London, W11 2DE
• Dexteris Consultants & Services Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Diligent Communications
  The Officers Mess, Coulsdon Road, CATERHAM, Surrey, CR3 5QX
• Dynacom Ltd
  5 Burcote, WEYBRIDGE, Surrey, KT13 0HG
• Dynamical Systems Research Ltd
  The Glassmill, 1 Battersea Bridge Road, LONDON, Greater London, SW11 3BZ
• Echo Communications Ltd
  Echo House, 27-33 Burr Road, LONDON, Greater London, SW18 4SQ
• Econpower Consultancies
  268 Bath Road, SLOUGH, Berkshire, SL1 4DX
• Elsat International Communications Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• Energy Audits
  Shakespeare House, 168 Lavender Hill, LONDON, Greater London, SW11 5TG
• Ethnic Communications Ltd
  50 Long Acre, LONDON, Greater London, WC2E 9JR
• Eurolink Consultants
  New Haven, Pyrford Woods Road, WOKING, Surrey, GU22 8QR
• Feedback Communications
  Suite 33, 10 Barley Mow Passage, LONDON, Greater London, W4 4PH
• Fineline Networks Ltd
  37 Southwood Road, LONDON, Greater London, SE9 3QE
• Force Ten Communications Ltd
  11 69 St. Marks Road, LONDON, Greater London, W10 6JG
• Fulcrum Communications
  3 Alexander Buildings, Station Approach Road, COULSDON, Surrey, CR5 2NS
• Future.Com
  272 London Road, WALLINGTON, Surrey, SM6 7DJ
• Global Defence Communications
  7 ST. Marys Road, LONDON, Greater London, NW11 9UE
• Global Telecom
  PO Box 2059, WATFORD, Hertfordshire, WD17 1XR
• Globalised Corporation Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• Grazebrook Laboratories
  Farm Cottage, Collinswood Road, Farnham Common, SLOUGH, Berkshire, SL2 3LJ
• H B Europe Corporate Services Ltd
  11 The Leather Market, Weston Street, LONDON, Greater London, SE1 3ER
• Hartley Communications
  104 Kingsbury Road, LONDON, Greater London, NW9 0AX
• Hayle Communications Ltd
  68 Windmill Road, CROYDON, Surrey, CR0 2XP
• Head-Line Communication Ltd
  128 Park House, 15-19 Greenhill CR, WATFORD, Hertfordshire, WD18 8PH
• Highwayman Associates
  Woodvill Cottage, Woodvill Road, LEATHERHEAD, Surrey, KT22 7BP
• I C S
  Colet Court, 100 Hammersmith Road, LONDON, Greater London, W6 7JP
• I.T. Contract Management Ltd
  Unit 10 Hackford Walk, LONDON, Greater London, SW9 0QT
• Ijc Consulting & Communications Ltd
  115 Chase Side, Southgate, LONDON, Greater London, N14 5HD
• Independent Data Distribution Ltd
  Epworth House, 25 City Road, LONDON, Greater London, EC1Y 1AA
• Infinite Communications Ltd
  26 York Street, LONDON, Greater London, W1U 6PZ
• Information & Communication
  Plumstead Road, LONDON, Greater London, SE18 7BZ
• Instant Telecoms I T C Centre
  268 Regents Park Road, LONDON, Greater London, N3 3HN
• Integrated Digital Systems Ltd
  44-45 Chancery Lane, LONDON, Greater London, WC2A 1JB
• International Cheap Calls
  845 High Road, LONDON, Greater London, N17 8EY
• Intouch
  Richmond Bridge House, 419 Richmond Road, TWICKENHAM, Middlesex, TW1 2EX
• Intouch Communication Services Ltd
  63 Green Dragon Yard, LONDON, Greater London, E1 5NJ
• Itech Supplies
  King William House, 2a Eastcheap, LONDON, Greater London, EC3M 1AA
• Jades Communications
  133 Fords Park Road, LONDON, Greater London, E16 1PR
• KT Corporation London
  Mincing Lane, LONDON, Greater London, EC3R 7AE
• Kayeholdings.Com
  M S P House, Fourth Way, WEMBLEY, Middlesex, HA9 0HQ
• Kensal Com Centre Ltd
  Ladbroke Grove, LONDON, Greater London, W10 5NQ
• Knight & Associates
  Marina House, 108 Goldhawk Road, LONDON, Greater London, W12 8HD
• LCC Ltd
  54 Ayres Street, LONDON, Greater London, SE1 1EU
• Lamont Consultants
  6 Empress Mews, LONDON, Greater London, SE5 9BT
• Lee Morgan Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Lewis Brown Associates
  39-41 Chase Side, LONDON, Greater London, N14 5BP
• Logos Healthcare Communications Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Lumina Broadcast
  59a Fitzgeorge Avenue, LONDON, Greater London, W14 0SZ
• M D Telecomms
  41 Burnaby Gardens, LONDON, Greater London, W4 3DR
• M K International Ltd
  76-78 Chertsey Road, WOKING, Surrey, GU21 5BJ
• M N Telecom
  17 Barham Court, Barham Close, WEMBLEY, Middlesex, HA0 2EB
• Mala Communications
  8 Beaumont Gate, Shenley Hill, RADLETT, Hertfordshire, WD7 7AR
• Mangodate Ltd
  8 Beaumont Gate, Shenley Hill, RADLETT, Hertfordshire, WD7 7AR
• Mashmallow
  Lower Flat, 17 Brockley Park, LONDON, Greater London, SE23 1PT
• Mason Communications
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Mercury Energy
  1 Olympic Way, WEMBLEY, Middlesex, HA9 0NP
• Metapath Software International
  Strand Bridge House, 128-142 Strand, LONDON, Greater London, WC2R 1HH
• Metcom International Ltd
  26 High Street, Wimbledon, LONDON, Greater London, SW19 5BY
• Metier Consultancy Services
  Dexter House, 22 South End, CROYDON, Surrey, CR0 1DN
• Mlambo Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Mobile 365 UK
  50 Southwark Street, LONDON, Greater London, SE1 1UN
• Modern Networks Ltd
  26 Gray's Inn Road, LONDON, Greater London, WC1X 8HR
• Moodia Internet Solutions
  91 Brick Lane, LONDON, Greater London, E1 6QL
• Mycom UK Ltd
  Wembley Point, 1 Harrow Road, WEMBLEY, Middlesex, HA9 6DE
• Nag Telecom
  6-10 Great Portland Street, LONDON, Greater London, W1W 8QL
• Oceanic Logistics
  23 Alexandra Road, LONDON, Greater London, NW4 2SB
• Olive Communications
  Tal House, 575 North End Road, WEMBLEY, Middlesex, HA9 0UU
• Oliver Company Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• One Stop Technology
  35 Cheam Common Road, WORCESTER PARK, Surrey, KT4 8TE
• Organizational & Educational Consultancy Ltd
  143 Pepys Road, LONDON, Greater London, SE14 5SG
• P T A Telecom
  Seymour House, Whiteleaf Road, HEMEL HEMPSTEAD, Hertfordshire, HP3 9DE
• PTS Consulting UK Ltd
  50 Liverpool Street, LONDON, Greater London, EC2M 7PR
• Palebeck Telecommunications Technology Ltd
  9 Little Portland Street, LONDON, Greater London, W1W 7JF
• Pentagon Consulting
  268 Bath Road, SLOUGH, Berkshire, SL1 4DX
• Perkins Telecommunications Consultants International Ltd
  5 The Retreat, HARROW, Middlesex, HA2 7JH
• Philip Royse Associates
  Heather Vale, 11 Kenwood Ridge, KENLEY, Surrey, CR8 5JW
• Phone Home & Away STD Ltd
  Congress House, 14 Lyon Road, HARROW, Middlesex, HA1 2EN
• Plantek Project Management
  Jigsaw House, 39 Central Way, CARSHALTON, Surrey, SM5 3NF
• Primus Telecommunications Ltd
  4 Victoria Street, LONDON, Greater London, SW1H 0GT
• Progressive Communication Associates
  Mitre House, 12-14 Mitre Street, LONDON, Greater London, EC3A 5BU
• Progressive Consulting
  48 Heathfield Road, CROYDON, Surrey, CR0 1EW
• Pulse Media
  Lansbury Estate, Lower Guildford Road, Knaphill, WOKING, Surrey, GU21 2EP
• Quality Telecom
  Olympic House, 28-42 Clements Road, ILFORD, Essex, IG1 1BA
• R I S C
  31 Twickenham Road, TEDDINGTON, Middlesex, TW11 8AQ
• Rapid Global
  George V Place, Thames Avenue, WINDSOR, Berkshire, SL4 1QP
• Red Moon Interactive
  78 Cannon Street, LONDON, Greater London, EC4N 6NQ
• Reid Communication Solutions
  358 Regents Park Road, LONDON, Greater London, N3 2LJ
• Richmond Management Group
  Business Park 5, Cleeve Road, LEATHERHEAD, Surrey, KT22 7NB
• Sabeca
  London House, 100 New Kings Road, LONDON, Greater London, SW6 4LX
• Sabio Ltd
  Unit 14 Canterbury Court, LONDON, Greater London, SW9 6DE
• Salient Telecomms Ltd
  ST. Andrews House,