- SPACE COMMUNICATIONS LIMITEDDissolved- 03274416 - Dissolved on 13 March 2012 
- MEGAHERTZ COMMUNICATIONS LIMITEDDissolved- 01645648 - Incorporated on 22 June 1982 
- STRAND COMMUNICATIONS LIMITED- 02896124 - Incorporated on 9 February 1994 
- COTSWOLD COMMUNICATIONS LIMITED- 02805563 - Incorporated on 31 March 1993 
- ONENINETY COMMUNICATIONS LIMITEDLiquidation- 06041884 - Incorporated on 4 January 2007 
- NUANCE COMMUNICATIONS LIMITED- 04825183 - Incorporated on 8 July 2003 
- GARDLINE COMMUNICATIONS LIMITED- 03652277 - Incorporated on 20 October 1998 
- CHIME COMMUNICATIONS LIMITED- 01983857 - Incorporated on 29 January 1986 
- CYBERLYNE COMMUNICATIONS LIMITEDIn Administration/Administrative Receiver- 03649132 - Incorporated on 14 October 1998 
- R.G.B. COMMUNICATIONS LIMITED- 02637121 - Incorporated on 12 August 1991 
- WAX COMMUNICATIONS LIMITEDActive - Proposal to Strike off- 02516291 - Incorporated on 27 June 1990 
- PARLIAMENT COMMUNICATIONS LIMITEDDisolved- 03017246 - Dissolved on 30 April 2025 
- LEWIS COMMUNICATIONS LIMITED- 02370504 - Incorporated on 10 April 1989 
- DATAFLOW COMMUNICATIONS LIMITEDActive - Proposal to Strike off- 01675224 - Incorporated on 2 November 1982 
- SC COMMUNICATIONS LIMITEDDissolved- 02654678 - Dissolved on 3 September 2013 
- MADEJSKI COMMUNICATIONS LIMITEDActive - Proposal to Strike off- 05544772 - Incorporated on 24 August 2005 
- UNITED COMMUNICATIONS LIMITEDDisolved- 03651923 - Dissolved on 8 July 2025 
- NETCEL COMMUNICATIONS LIMITED- 03215366 - Incorporated on 24 June 1996 
- BRENTWOOD COMMUNICATIONS LIMITED- 01375726 - Incorporated on 27 June 1978 
- CUBE COMMUNICATIONS LIMITEDDissolved- 04211130 - Dissolved on 10 August 2010