• Airmark Ltd
  42a Shenley Road, BOREHAMWOOD, Hertfordshire, WD6 1DR
• Alderwest Ltd
  7-11 Minerva Road, LONDON, Greater London, NW10 6HJ
• Alpha Finance & Trading UK Llp
  7-11 Minerva Road, LONDON, Greater London, NW10 6HJ
• Alpha Radio Cars
  7-11 Minerva Road, LONDON, Greater London, NW10 6HJ
• Alpha Telecom
  7-11 Minerva Road, LONDON, Greater London, NW10 6HJ
• Call-Serve
  Chiltern Place, Upton Road, SLOUGH, Berkshire, SL1 2AD
• Comxo Trading
  628 London Road, SLOUGH, Berkshire, SL3 8QH
• Connections Diary Service
  The Meadlands, 11 Oakleigh Road, PINNER, Middlesex, HA5 4HB
• J.A.M. Answering Services
  42a Shenley Road, BOREHAMWOOD, Hertfordshire, WD6 1DR
• J.A.M. French Properties
  42a Shenley Road, BOREHAMWOOD, Hertfordshire, WD6 1DR
• J.A.M. Media Services
  42a Shenley Road, BOREHAMWOOD, Hertfordshire, WD6 1DR
• J.A.M. Paging Services
  42a Shenley Road, BOREHAMWOOD, Hertfordshire, WD6 1DR
• Mascot Secretarial
  42a Shenley Road, BOREHAMWOOD, Hertfordshire, WD6 1DR
• Metro Office Services
  MSP Business Centre, Fourth Way, WEMBLEY, Middlesex, HA9 0HQ
• Office Response
  116a Chapel Lane, HIGH WYCOMBE, Buckinghamshire, HP12 4BY
• Premier Voicemail Ltd
  PO Box 3, BOREHAMWOOD, Hertfordshire, WD6 4HD
• Response Answercall
  The Market Building, 195 High Street, BRENTFORD, Middlesex, TW8 8LB
• Rocket Ansa Call
  Roxeth House, Shaftesbury Avenue, HARROW, Middlesex, HA2 0PZ