| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Airtime Interactive Marketing Ltd | 03870840 | 19/10/2006 | Dissolved |
| G2 Integrated Solutions Ltd | 02532816 | 19/10/2006 | Dissolved |
| G4S SECURITY SYSTEMS (UK) LIMITED | 01986024 | 08/04/2009 | Dissolved |
| GIRONET INTERNATIONAL LIMITED | 04157432 | 19/10/2006 | Dissolved |
| GIROVEND LIMITED | 05882474 | 19/10/2006 | Dissolved |
| Girovend Holdings Ltd | 01621373 | 19/10/2006 | Dissolved |
| Group 4 Securitas Alarm Ltd | 01298990 | 12/07/2000 | Dissolved |
| Group 4 Security Systems Ltd | 01651507 | 03/08/1992 | Dissolved |
| Henderson Security Electronics Ltd | 01145353 | 15/03/1993 | Dissolved |
| Henderson Security Systems Ltd | 01989261 | 11/09/2000 | Dissolved |
| OLD GIROVEND LIMITED | 02277364 | 19/10/2006 | Dissolved |
| PLANTIME LIMITED | 01009029 | 15/03/1993 | Dissolved |
| Pat Holdings Ltd | 03725694 | 19/10/2006 | Dissolved |
| Paychannel Ltd | 01645175 | 19/10/2006 | Dissolved |
| Public Access Terminals Ltd | 02201165 | 19/10/2006 | Dissolved |
| Symmetry Security Ltd | 03263936 | 30/09/2004 | Dissolved |
| Transacsys Investments Ltd | 03166628 | 19/10/2006 | Dissolved |
| Transacsys Workflow Ltd | 03734214 | 19/10/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMAG TECHNOLOGY LIMITED | 02382076 | 06/04/1993 | 31/12/2014 | Silver |
| BRITISH SECURITY INDUSTRY ASSOCIATION LIMITED(THE) | 00896431 | 12/07/2001 | 09/07/2003 | Silver |
| G4S TECHNOLOGY LIMITED | 02382338 | 02/04/1993 | 31/12/2014 | Gold |
| INSIGHT CERTIFICATION LIMITED | 02525516 | 25/07/1991 | 31/01/1997 | Bronze |
| SECURITAS TECHNOLOGY LIMITED | 01083277 | 03/08/1992 | 31/12/2014 | Dissolved |