• 1st Engineering Ltd
  101 Bramerton Road, BECKENHAM, Kent, BR3 3NY
• 1st Line Internet Services Llp
  26 Colliers Water Lane, THORNTON HEATH, Surrey, CR7 7LA
• 21st Century Business Phones Ltd
  33 Spencer Mews, LONDON, Greater London, W6 8PB
• 3c Communications Ltd
  Fifth Floor Regal House, London Road, TWICKENHAM, Middlesex, TW1 3QS
• A U Network Solutions Ltd
  17 Gilda Avenue, ENFIELD, Middlesex, EN3 7UJ
• A Z Global Marketing
  6a Pavilion Parade, Wood Lane, LONDON, Greater London, W12 0HQ
• A.G. Hanscombe (Mechanical Design) Ltd
  Sherwwod 56, Watercroft Road, Halstead, SEVENOAKS, Kent, TN14 7DP
• A.P.Television Rentals Ltd
  288 Lodge Lane, Collier Row, ROMFORD, Essex, RM5 2EX
• A2bnet.Com Ltd
  5 Acacia Drive, BANSTEAD, Surrey, SM7 1LD
• A4 Internet Ltd
  174 Battersea Park Road, LONDON, Greater London, SW11 4ND
• Abbey Technology Ltd
  4 Saxon Business Centre, Windsor Avenue, LONDON, Greater London, SW19 2RR
• Above The Horizon Ltd
  4 Meadowside, Woodside Road, WATFORD, Hertfordshire, WD25 0LB
• Abytel Ltd
  42 Poynter Road, ENFIELD, Middlesex, EN1 1DL
• Access Computer Networks Ltd
  25 Thorndon Gardens, EPSOM, Surrey, KT19 0QB
• Access Networks Solutions Ltd
  Devlin House, 36 St George Street, LONDON, , W1S 2FW
• Accurate Support Ltd
  99 Hollowfield Walk, NORTHOLT, Middlesex, UB5 5SY
• Achieving Results Ltd
  90 Penshurst Gardens, EDGWARE, Middlesex, HA8 9TU
• Active Communication Co
  International House, Cray Avenue, ORPINGTON, Kent, BR5 3RY
• Active Link Solutions Ltd
  46 Sybourn Street, LONDON, Greater London, E17 8HA
• Activisys
  47-49 Park Royal Road, LONDON, Greater London, NW10 7LQ
• Acuity Internet Ltd
  24 Doncaster Drive, NORTHOLT, Middlesex, UB5 4AY
• Ad Communication Ltd
  171 Peckham High Street, Peckham, LONDON, Greater London, SE15 5SL
• Adcall plc
  24 Oakleigh Park North, LONDON, Greater London, N20 9AR
• Advance Telecom UK Ltd
  3 Avondale Road, WELLING, Kent, DA16 1NG
• Aeko Ltd
  61 Victoria Avenue, SURBITON, Surrey, KT6 5DN
• Afaab Consultancy Ltd
  4 Park Road, KINGSTON UPON THAMES, Surrey, KT2 6BN
• Affinity Business Communications Ltd
  10 Bishops Close, BARNET, Hertfordshire, EN5 2QH
• Affle Ltd
  1 Stanford Road London, LONDON, Greater London, W8 5PP
• Ahava Internet Cafe Ltd
  10a Reighton Road, Hackney, LONDON, Greater London, E5 8SG
• Airwide Solutions Holdings Ltd
  5th Floor Alder Castle, 10 Noble Street, LONDON, Greater London, EC2V 7QL
• Ak Consulting Ltd
  23 Bevin Square, LONDON, Greater London, SW17 7BB
• Alexandra Communications Co. Ltd
  8 D'Arcy Road, SUTTON, Surrey, SM3 8NH
• Alibitel Ltd
  9 Firs Avenue, East Sheen, LONDON, Greater London, SW14 7NZ
• Alj Consulting Ltd
  60 Northcote Road, TWICKENHAM, Middlesex, TW1 1PA
• All Bright Sparks
  14a Upper Mulgrave Road, SUTTON, Surrey, SM2 7AZ
• Allsorts Solutions
  500 High Road, LONDON, Greater London, N17 9JF
• Almeria Networks Ltd
  BLM Salisbury House, London Wall, LONDON, Greater London, EC2M 3QB
• Alternate Energy Solutions Ltd
  8 The Shrubberies, CHIGWELL, Essex, IG7 5DU
• Ambient Communications Ltd
  Priory House, Marsh Road Alperton Lane, WEMBLEY, Middlesex, HA0 1ES
• Amps Communications Ltd
  4 Oaktree Gardens, BROMLEY, Kent, BR1 5BH
• Andrew Michaelides
  57 Hale Drive, LONDON, Greater London, NW7 3EL
• Anlemma Ltd
  40 Abbots Road, ABBOTS LANGLEY, Hertfordshire, WD5 0BG
• Arborean Internet Ltd
  10 The Spinneys, Bickley Bromley, BROMLEY, Kent, BR1 2NU
• Aria Telecom Ltd
  2nd Floor 20 Iron Monger Lane, LONDON, Greater London, EC2V 8EP
• Armadillo Managed Services Ltd
  8 The Square, Stockley Park, UXBRIDGE, Middlesex, UB11 1FW
• Aro Consultancy Ltd
  26 Montagu House, 109 Whitfield Street, LONDON, Greater London, W1T 4HJ
• Ascend Networks Ltd
  25 Hawtrey Avenue, NORTHOLT, Middlesex, UB5 5JB
• Ashstead Associates Ltd
  55 Ravenscroft Road, LONDON, Greater London, E16 4AF
• Associated Network Solutions
  707 High Road, LONDON, Greater London, N12 0BT
• Assured Communications
  151 Bramblewood Close, CARSHALTON, Surrey, SM5 1PH
• Astracom Ltd
  12 Wentworth Close, WATFORD, Hertfordshire, WD17 4LW
• At & T Business Communications
  Landsdowne House, Berkeley Square, LONDON, Greater London, W1J 6ER
• At Your Call Ltd
  115 Palmerston Road, BUCKHURST HILL, Essex, IG9 5NG
• Atlanta Technology
  20a Brownlow Mews, LONDON, Greater London, WC1N 2LD
• Atlas Datacom Ltd
  49 Blagdon Road, LONDON, Greater London, SE13 7HH
• Atlas Internet
  10 Greenland St, LONDON, Greater London, NW1 0ND
• Aurora Tech Solutions
  Trident Business Centre, 89 Bickersteth Road, LONDON, Greater London, SW17 9SH
• Axia Communications Ltd
  111 ST. Albans Road, WATFORD, Hertfordshire, WD17 1UH
• Axia Computer Systems Ltd
  111 ST. Albans Road, WATFORD, Hertfordshire, WD17 1UH
• Axianet Ltd
  111 ST. Albans Road, WATFORD, Hertfordshire, WD17 1UH
• Axis Employee Communications Ltd
  Southwark Street, LONDON, , SE1 1UN
• B.J.C Communication Systems
  144a Lea Bridge Road, LONDON, Greater London, E5 9RB
• BCDL Consultants Ltd
  12 Coolgardie Avenue, CHIGWELL, Essex, IG7 5AY
• Beach Communications
  The Yard, Adenmore Road, LONDON, Greater London, SE6 4RH
• Bell Information Technology Services Ltd
  23 Drayton Avenue, ORPINGTON, Kent, BR6 8JN
• Bellview Communications Ltd
  22 Newlands Woods, Bardolph Avenue, CROYDON, Surrey, CR0 9JR
• Bespoke Internet & Business Solutions Ltd
  623 Uxbridge Road, HAYES, Middlesex, UB4 8HR
• Bethlehem Technologies London Ltd
  No 6 30 Harrington Gardens, LONDON, Greater London, SW7 9LT
• Bis Ltd
  38 St Mary Axe, LONDON, Greater London, EC3A 8BH
• Blackgate Communications Ltd
  19 Park Parade, LONDON, Greater London, NW10 4JH
• Blue Angel Solutions
  198 De Havilland Road, EDGWARE, Middlesex, HA8 5QD
• Blue Sky Telecom Solutions Ltd
  Purcells Accountants, 4 Quex Road, LONDON, Greater London, NW6 4PS
• Bluefire Consultancy Ltd
  115a Rusthall Avenue, Chiswick London, LONDON, Greater London, W4 1BN
• Blyk
  51-53 Great Marlborough Street, 4th Floor, London, , W1F 7JT
• Boltblue plc
  PO Box 52769, London, Greater London, EC2P 2UW
• Bownet Cable Management Systems Ltd
  23a Acorn Industrial Park, Crayford Road, DARTFORD, Kent, DA1 4AL
• Brantel Ltd
  1 Blanchard Mews, Harold Wood, ROMFORD, Essex, RM3 0GN
• Breeze Internet Services Ltd
  38 Millais Road Leytonstone, LONDON, Greater London, E11 4HD
• British Monomarks Ltd
  27 Old Gloucester Street, LONDON, Greater London, WC1N 3AF
• Broadband Shop Ltd
  93 Mallinson Road, LONDON, Greater London, SW11 1BL
• Brookland Computer Services
  Kent House, 27-33 Upper Mulgrave Road, SUTTON, Surrey, SM2 7AY
• Building Intelligence Ltd
  The Old Truman Brewery, 91 Brick Lane, LONDON, Greater London, E1 6QL
• Building Zones Ltd
  7 St Johns Mews, St Johns Road, Hampton Wick, KINGSTON UPON THAMES, Surrey, KT1 4AN
• Buongiorno Marketing Services UK Ltd
  28-30 Kirby Street, LONDON, Greater London, EC1N 8TE
• Business Enterprise Technologies Ltd
  3rd Floor Anderson House, 27 Peterborough Road, HARROW, Middlesex, HA1 2AX
• Business For Breakfast
  172 Whitmore Road, HARROW, Middlesex, HA1 4AQ
• Business Sense
  Ambassador House, Brigstock Road, THORNTON HEATH, Surrey, CR7 7JG
• Bussey Communications Ltd
  Amesbury Lodge, 10 Lower Bury Lane, EPPING, Essex, CM16 5HA
• C Hear (Europe) Ltd
  16 Hewett Street, LONDON, Greater London, EC2A 3NN
• C Hear Technologies
  16 Hewett Street, LONDON, Greater London, EC2A 3NN
• C.A.L.L. Communications Ltd
  133 New Road, Chingford, LONDON, Greater London, E4 9EZ
• CMC Communications Ltd
  15 Cumberland Drive, BEXLEYHEATH, Kent, DA7 5LA
• CPD Telecom & Electrical Services
  Brentmead House, Britannia Road, LONDON, Greater London, N12 9RS
• CPW Network Services Ltd
  80 Hammersmith Road, LONDON, , W14 8UD
• CSL
  63 Hillingdale, Biggin Hill, WESTERHAM, Kent, TN16 3NR
• CVM Consultancy Ltd
  35a Upper Wickham Lane, WELLING, Kent, DA16 3AB
• Cable Revolution Systems
  Unit 3m, Button Street, SWANLEY, Kent, BR8 8DX
• Cablefree Solutions Ltd
  1 ST. Clare Business Park, Holly Road, HAMPTON, Middlesex, TW12 1PZ
• Cabletalk
  Unit 13 Saxon Business Centre, Windsor Avenue, LONDON, Greater London, SW19 2RR
• Cabletron Systems Ltd
  Ingersoll House, 9 Kingsway, LONDON, Greater London, WC2B 6XF
• Cabot Recruitments Ltd
  30 Purbrook Estate, Tower Bridge Road, LONDON, Greater London, SE1 3BZ
• Cabtronix Ltd
  Mores Lane, Pilgrims Hatch, BRENTWOOD, Essex, CM14 5RZ
• Call Cas Ltd
  353a Brockley Road, Brockley, LONDON, Greater London, SE4 2AG
• Call Link Telecommunications Ltd
  3 Doghurst Avenue, Harlington Hayes, HAYES, Middlesex, UB3 5BJ
• Call Shop Plus
  3 Pyecombe Corner, LONDON, Greater London, N12 7AJ
• Call2call Ltd
  Digital Village, 102 Cavell Street, LONDON, Greater London, E1 2JA
• Cambare Ltd
  238 Graham Road, LONDON, Greater London, E8 1BP
• Cameron Durley Consulting
  Unit 5 Smug Oak Green, Business Centre Lye Lane, Bricket Wood St Albans, ST ALBANS, Hertfordshire, AL2 3UG
• Canyon Communications
  Unit 15a Grays Farm Production Village, Grays Farm Road, ORPINGTON, Kent, BR5 3BD
• Carbonred Ltd
  Unit 6, 70 Homefield Road, BROMLEY, Kent, BR1 3AL
• Cardonet Ltd
  70-78 York Way, LONDON, Greater London, N1 9AG
• Careline Financial Services Ltd
  250 Gunnersbury Avenue, LONDON, Greater London, W4 5QB
• Carlyon Communications Ltd
  18 Kings Road, MITCHAM, Surrey, CR4 1SN
• Cell-Savers Ltd
  84 Chichester Road, Leytonstone London, LONDON, Greater London, E11 3LJ
• Celltext Ltd
  4 Vine House, 26 Armoury Way, LONDON, Greater London, SW18 1HZ
• Centre Core Ltd
  1 Virginia Street, LONDON, Greater London, E98 1TH
• Challow Design & Networking Services Ltd
  Unit 8a Kings Exchange, Tileyard Road, LONDON, Greater London, N7 9AH
• Chams Communication Ltd
  32 Exeter Road, LONDON, Greater London, N9 0JG
• Chikay Ltd
  78 Oakleigh Way, MITCHAM, Surrey, CR4 1AN
• China Telecom (Europe) Ltd
  2nd Floor Bellerive House, 3 Muirfield Crescent, LONDON, , E14 9SZ
• Choo Ltd
  145 Walnut Road, LONDON, Greater London, E10 5TQ
• Chris Communications Ltd
  191 Auckland Hill, West Norwood, LONDON, Greater London, SE27 9PD
• Christian Broadcasting Corporation Ltd
  24 Cissbury Ring North, Woodside Park, LONDON, Greater London, N12 7AN
• Christie Consortium Ltd
  1 Christchurch Avenue, WEMBLEY, Middlesex, HA0 4DU
• Cisilion Ltd
  8 Silverglade Business Park, Leatherhead Road, CHESSINGTON, Surrey, KT9 2QL
• City Cell Ltd
  264-267 Tottenham Court Road, LONDON, Greater London, W1T 7RH
• Claa Internet Cafe
  40 Peckham Rye, Peckham Southwark, LONDON, Greater London, SE15 4JR
• Claremont Contracts
  19 Balgores Crescent, ROMFORD, Essex, RM2 6AB
• Cleartalk Ltd
  11 Hawkshill Way, ESHER, Surrey, KT10 8LH
• Colonial Capital Corporation
  New Loom House, 101 Back Church Lane, LONDON, Greater London, E1 1LU
• Com - Tel Global Solutions Ltd
  Unit 3, Plaza Parade, WEMBLEY, Middlesex, HA0 4YT
• Cometrics Ltd
  2a Disraeli Road, Ealing, LONDON, Greater London, W5 5HP
• Communicate Worldwide Ltd
  38 Inverness Drive, Hainault Ilford, ILFORD, Essex, IG6 3BL
• Communication Network Solutions Ltd
  283 St Mary's Lane, UPMINSTER, Essex, RM14 3DA
• Communication Support Solutions Ltd
  294 Friern Road, Dulwich, LONDON, Greater London, SE22 0BQ
• Communication Today Ltd
  21 Aylmer Parade, Aylmer Road, LONDON, Greater London, N2 0AT
• Communications & Network Consulting
  Bedford House, 3 Bedford Street, LONDON, Greater London, WC2E 9HD
• Communications Installations
  Unit 230 Kingspark Business Centre, 152-178 Kingston Road, NEW MALDEN, Surrey, KT3 3ST
• Communications Installations & Property Services Ltd
  39 Woodcroft, Mottingham, LONDON, Greater London, SE9 3EG
• Communications Link
  Gainsborough House, 33 Throgmorton Street, LONDON, Greater London, EC2N 2BR
• Communications Network Ltd
  Unit 2 26 Clayton CR, BRENTFORD, Middlesex, TW8 9PT
• Compass Hi-Tech Ltd
  16 Muirfield Close, Ryder Drive, LONDON, Greater London, SE16 3BG
• Complete Network Solution Ltd
  47 Meadway, ENFIELD, Middlesex, EN3 6NT
• Compuquest Systems Ltd
  60 Princes Road, ROMFORD, Essex, RM1 2SP
• Computanet Ltd
  6 Merlin Road North, WELLING, Kent, DA16 2JD
• Computel Consultancy Ltd
  68 Lomond Gardens, SOUTH CROYDON, Surrey, CR2 8EQ