| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Aura Partnerships Uk Ltd | 05541009 | 19/08/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACCOMMODATION SERVICES (HOLDINGS) LIMITED | 03825262 | 01/07/2008 | 24/02/2012 | Silver |
| ARMY CADET CHARITABLE TRUST UK | 00293432 | 03/03/2002 | 20/11/2004 | Bronze |
| Adept Solutions (Uk) Ltd | 04056157 | 29/06/2001 | 30/04/2003 | Dissolved |
| CLAYESMORE SCHOOL | 00359779 | 31/05/2011 | 04/10/2022 | Silver |
| DEBUT SERVICES (CONTRACTS) LTD | 04905429 | 01/12/2003 | 16/04/2007 | Not Trading |
| DEBUT SERVICES (SOUTH WEST) LIMITED | 04582950 | 01/09/2003 | 27/09/2016 | Bronze |
| DEBUT SERVICES LIMITED | 04182322 | 01/09/2003 | 27/09/2016 | Not Trading |
| EDUACTION (WALTHAM FOREST) LIMITED | 04128693 | 25/11/2002 | 03/04/2003 | Dissolved |
| INTEGRATED ACCOMMODATION SERVICES PLC | 03824397 | 01/07/2008 | 24/02/2012 | Silver |
| MODUS SERVICES (HOLDINGS) LIMITED | 03871198 | 23/05/2001 | 14/03/2003 | Amber |
| MODUS SERVICES LIMITED | 03902894 | 23/05/2001 | 14/03/2003 | Amber |
| SYSTEMATIC SOFTWARE ENGINEERING LIMITED | 02753294 | 22/01/2010 | 28/02/2014 | Bronze |
| SYSTEMS COMMUNICATIONS AND NETWORKS (SCN) LIMITED | 03227365 | 08/12/1999 | 17/01/2000 | Dissolved |
| THE ROYAL SIGNALS MUSEUM | 06460179 | 27/12/2007 | 01/07/2020 | Silver |
| THE ROYAL SIGNALS MUSEUM TRADING COMPANY LIMITED | 03685523 | 20/06/2017 | 01/07/2020 | Amber |