| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADT FIRE AND SECURITY PLC | 01161045 | 18/12/1991 | 03/07/1992 | Silver |
| BRITANNIA SECURITY GROUP LIMITED | 01388141 | 18/12/1991 | 03/07/1992 | Strike Off |
| Capitol Alarms Ltd | 01393065 | 24/10/1991 | 14/11/1991 | Dissolved |
| Chiltern Security Ltd | 01983801 | 26/10/1991 | 14/11/1991 | Dissolved |
| Comelit (Uk) Limited | 02175330 | 28/12/1990 | 14/11/1991 | Dissolved |
| D C S Alarms Ltd | 01118483 | 26/10/1991 | 14/11/1991 | Dissolved |
| James Deacon Security Ltd | 00969968 | 26/10/1991 | 14/11/1991 | Dissolved |
| Kickshaws Ltd | 03744927 | 29/03/1999 | 10/12/1999 | Dissolved |
| Kickshaws Ltd | 03744927 | 29/03/1999 | 22/02/2006 | Dissolved |
| Ppr Alarms Ltd | 01388494 | 26/10/1991 | 14/11/1991 | Dissolved |
| Priory Security Services Limited | SC097710 | 28/12/1990 | 29/11/1991 | Dissolved |
| Security Watch Ltd | 02053798 | 01/10/1991 | 14/11/1991 | Dissolved |
| Sovereign Security Systems Ltd | 01547382 | 26/10/1991 | 14/11/1991 | Dissolved |
| TRACKER NETWORK (UK) LIMITED | 02632771 | 10/06/1993 | 10/12/1999 | One Red Flag |
| TRACKER NETWORK (UK) LIMITED | 02632771 | 04/02/1993 | 22/02/2006 | One Red Flag |
| Willaire Group Plc | 01459924 | 09/06/1991 | 16/07/1992 | Dissolved |