| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Management Security Services (Anglia) Ltd | 01606020 | 11/06/2001 | Dissolved |
| Westminster Security Group Ltd | 03162557 | 11/06/2001 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Allied Safety Co Ltd | 02145289 | 11/06/2001 | 27/10/2004 | Dissolved |
| Armature Group Ltd | 02391383 | 21/05/1998 | 22/11/2000 | Dissolved |
| Armature Holdings Ltd | 03886936 | 24/12/1999 | 26/07/2000 | Dissolved |
| Blue Circle (Intruder Protection) Ltd | 00934980 | 11/06/2001 | 12/01/2005 | Dissolved |
| Bowman,L,& Sons Ltd | 02668781 | 11/06/2001 | 27/10/2004 | Dissolved |
| CHUBB (NI) LIMITED | 00373935 | 11/06/2001 | 20/05/2005 | Dissolved |
| CHUBB FIRE & SECURITY LIMITED | 00524469 | 11/06/2001 | 20/05/2005 | One Red Flag |
| CHUBB FIRE LIMITED | 00134210 | 11/06/2001 | 20/05/2005 | Amber |
| CHUBB FIRE SECURITY (SA) LIMITED | 02937745 | 15/08/2004 | 04/06/2008 | Dissolved |
| CHUBB MANAGEMENT SERVICES LIMITED | 01929512 | 05/05/2004 | 20/05/2005 | Dissolved |
| Chubb Security Network Ltd | 04062277 | 11/06/2001 | 20/05/2005 | Dissolved |
| Cygnus (Guernsey) Limited | 02552241 | 25/10/1992 | 03/06/1993 | Dissolved |
| Firm Security Ltd | 02247704 | 11/06/2001 | 30/12/2001 | Dissolved |
| First Fire & Safety Ltd | SC170866 | 11/06/2001 | 30/12/2001 | Dissolved |
| Franklin Technical Services Ltd | 02092562 | 11/06/2001 | 30/12/2001 | Dissolved |
| Grampian Fire Protection Ltd | SC101449 | 11/06/2001 | 27/10/2004 | Dissolved |
| Interfire Ltd | 03053886 | 11/06/2001 | 07/10/2004 | Dissolved |
| John Sheffield (Fire Protection) Ltd | 01716990 | 11/06/2001 | 27/10/2004 | Dissolved |
| MENTOR BUSINESS SYSTEMS LIMITED | 01892391 | 11/06/2001 | 20/05/2005 | Silver |
| Madge International Holdings Ltd | 03256763 | 22/11/1996 | 30/04/1997 | Dissolved |
| Madge Networks (U K) Holdings Ltd | 03250505 | 22/11/1996 | 30/04/1997 | Dissolved |
| Madge Networks Ltd | 02011579 | 13/03/1995 | 30/04/1997 | Dissolved |
| Merlin Fire & Security Engineering Ltd | 02662795 | 11/06/2001 | 30/12/2001 | Dissolved |
| SECURITAS SECURITY PERSONNEL LIMITED | 01062876 | 11/06/2001 | 20/05/2005 | Dissolved |
| SECURITY MONITORING CENTRES LIMITED | 00318215 | 11/06/2001 | 20/05/2005 | Gold |
| Specialist Electrical Systems Ltd | 01546470 | 11/06/2001 | 30/12/2001 | Dissolved |
| T G PRODUCTS LIMITED | 02774304 | 11/06/2001 | 20/05/2005 | Amber |
| Westminster Fire Ltd | 03608484 | 11/06/2001 | 30/12/2001 | Dissolved |
| Westminster Securities Ltd | 00945189 | 05/05/2004 | 20/05/2005 | Dissolved |
| Westminster Security Ltd | 03108694 | 11/06/2001 | 30/12/2001 | Dissolved |
| Westminster Security Systems Ltd | 02231747 | 11/06/2001 | 02/02/2005 | Dissolved |
| madge (u k)ltd | 03250506 | 22/11/1996 | 30/04/1997 | Dissolved |