- DATAPHARM COMMUNICATIONS LIMITEDDisolved- 01317421 - Dissolved on 21 December 2021 
- DEE COMMUNICATIONS LIMITED- 01366415 - Incorporated on 4 May 1978 
- M.R.S. COMMUNICATIONS LIMITED- 01393536 - Incorporated on 11 October 1978 
- SHIELING COMMUNICATIONS LIMITEDLiquidation- 01471772 - Incorporated on 8 January 1980 
- ZIRCON COMMUNICATIONS LIMITEDDissolved- 01523274 - Dissolved on 4 June 2013 
- WALKER COMMUNICATIONS LIMITED- NI030483 - Incorporated on 15 February 1996 
- ERNE COMMUNICATIONS LIMITEDDissolved- NI048232 - Dissolved on 6 August 2010 
- SCORE COMMUNICATIONS LIMITEDActive - Proposal to Strike off- 05325789 - Incorporated on 6 January 2005 
- WELL COMMUNICATIONS LIMITED- 04249316 - Incorporated on 10 July 2001 
- UPSTAIRS COMMUNICATIONS LIMITEDLiquidation- 04608839 - Incorporated on 4 December 2002 
- FREMAR COMMUNICATIONS LIMITED- 06393637 - Incorporated on 9 October 2007 
- DEFINITIVE COMMUNICATIONS LIMITEDDissolved- 06905280 - Dissolved on 14 August 2012 
- JJH COMMUNICATIONS LIMITEDDissolved- 06918621 - Dissolved on 16 August 2011 
- DEANSLAND COMMUNICATIONS LIMITED- 07014249 - Incorporated on 9 September 2009 
- FLEXITEL COMMUNICATIONS LIMITEDDissolved- 07025493 - Dissolved on 17 September 2013 
- BLEND COMMUNICATIONS LIMITEDDissolved- 04868254 - Dissolved on 17 September 2013 
- OYSTER COMMUNICATIONS LIMITED- 01794654 - Incorporated on 24 February 1984 
- PORTFOLIO COMMUNICATIONS LIMITEDActive - Proposal to Strike off- 02208316 - Incorporated on 24 December 1987 
- CARRERAS COMMUNICATIONS LIMITED- 02558356 - Incorporated on 15 November 1990 
- KEENE COMMUNICATIONS LIMITEDActive - Proposal to Strike off- 02674691 - Incorporated on 31 December 1991