| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARQIVA LIMITED | NF003006 | 22/10/1991 | Dissolved |
| BUILDING ENTERPRISE LIMITED | 05754661 | 06/08/2013 | Dissolved |
| Future Integrated Telephony Plc | 02967174 | 01/07/1999 | Dissolved |
| THE CONVERGENCE GROUP PLC | 01882286 | 22/10/1999 | Strike Off |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARQIVA LIMITED | 02487597 | 30/06/1998 | 31/01/1999 | Silver |
| COMMS HOUSE LIMITED | 03834652 | 08/10/1999 | 18/11/2003 | Dissolved |
| COMMUNICATIONS MANAGEMENT ASSOCIATION | 02238045 | 10/07/2003 | 17/07/2007 | Strike Off |
| FORCESENSYS LIMITED | 05489055 | 14/12/2005 | 30/09/2006 | Dissolved |
| GENIUS BOARDS LIMITED | 04764900 | 01/03/2008 | 30/04/2016 | One Red Flag |
| GENIUS METHODS LIMITED | 06140906 | 01/03/2010 | 30/03/2023 | One Red Flag |
| QUEST4INSIGHT LIMITED | 04212328 | 08/05/2001 | 28/04/2004 | Dissolved |
| QUEST4INSIGHT LIMITED | 04212328 | 08/05/2001 | 28/04/2004 | Dissolved |
| SECURE BACKUP SYSTEMS LIMITED | 03130333 | 25/01/1996 | 30/06/1998 | Dissolved |
| The Cable Communications Association Ltd | 00286891 | 19/09/1996 | 11/09/1997 | Dissolved |
| VALUFIN LIMITED | 04764899 | 01/05/2011 | 11/06/2015 | One Red Flag |
| VIRGIN MEDIA (UK) GROUP LLC | FC018124 | 04/06/1996 | 30/06/1998 | Dissolved |
| VIRGIN MEDIA PCHC II LIMITED | 02835551 | 18/10/1996 | 30/06/1998 | Dissolved |
| WIFINITY LIMITED | 03921568 | 29/09/2000 | 02/06/2003 | Silver |
| WINDSOR TELEVISION LIMITED | 01745542 | 08/11/1992 | 01/11/1993 | Dissolved |
| Woolfall Plc | 03813428 | 15/09/1999 | 31/12/2001 | Dissolved |