• Fone Nutz
  31 Winchester Road, LONDON, Greater London, E4 9LH
• Globility Ltd
  3 Hatchers Mews, LONDON, Greater London, SE1 3GS
• Hooperville Ltd
  Unit 20 City Business Centre, Lower Road, LONDON, Greater London, SE16 2XB
• Imsmart
  Unit 13 Herts Business Centre, Alexander Road, London Colney, ST ALBANS, Hertfordshire, AL2 1JG
• Itv plc
  200 Gray's Inn Road, LONDON, Greater London, WC1X 8HF
• Jays Enterprises Ltd
  1 Peckham Park Road, LONDON, Greater London, SE15 6TR
• Micomm
  First Floor Patman House 23-2 Electric Parade, George Lane, LONDON, Greater London, E18 2LS
• Mirror Audio Ltd
  10 Broadbent Close, LONDON, Greater London, N6 5JW
• Multipart Ltd
  9 ST. Ronans Close, BARNET, Hertfordshire, EN4 0JH
• Network
  57 London Road, ENFIELD, Middlesex, EN2 6DU
• Orange P C S
  276 Chiswick High Road, LONDON, Greater London, W4 1PD
• Pulse Telecoms
  106 Katherine Road, LONDON, Greater London, E6 1EN
• Retell
  53 Thames Street, SUNBURY ON THAMES, Middlesex, TW16 5QH
• Rika Telephone Equipment
  170-172 Honeypot Lane, STANMORE, Middlesex, HA7 1EE
• Synergyone
  Unit 3a The Old Print Works, Tapster Street, BARNET, Hertfordshire, EN5 5TH
• Telephoneland Ltd
  PO Box 2000, BUCKHURST HILL, Essex, IG9 5LA
• Telsave Ltd
  27 Atwood Road, LONDON, Greater London, W6 0HX
• The Carphone Warehouse
  80 High Street, LONDON, Greater London, W3 6QX
• The Carphone Warehouse
  219 High Street, EPPING, Essex, CM16 4BL
• The Fone Exchange
  14 Hendon Lane, LONDON, Greater London, N3 1TR
• Voice Recorders Ltd
  Unit 20 City Business Centre, Lower Road, LONDON, Greater London, SE16 2XB