• Amtes Equipment
  Woodlawn Grove, WOKING, Surrey, GU21 4EF
• GN Great Nordic UK Ltd
  Runnymede House, 96-97 High Street, EGHAM, Surrey, TW20 9HQ
• PRM Associates Ltd
  127 Evendons Lane, WOKINGHAM, Berkshire, RG41 4AE
• Retell
  53 Thames Street, SUNBURY ON THAMES, Middlesex, TW16 5QH
• Telephone Systems
  18 Laburnum Way, STAINES, Middlesex, TW19 7SQ