| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Paramount Systems (Installations) Limited | 02123702 | 16/04/1992 | Dissolved |
| Shield Fire Systems Ltd | 05008412 | 07/01/2004 | Dissolved |
| Slack Security Ltd | 02840048 | 27/07/1993 | Dissolved |
| Vector Technical Solutions Ltd | 04133516 | 27/09/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A. A. I. FIRE SYSTEMS LTD. | 03342226 | 12/06/2003 | 10/12/2009 | Not Trading |
| C L E N Group Ltd | 02466332 | 02/02/1992 | 29/04/1992 | Dissolved |
| Magnet - Isl Security & Fire Systems Ltd | 02178620 | 12/08/1996 | 10/10/1997 | Dissolved |
| SERV FIRE LIMITED | 06422301 | 08/11/2007 | 09/11/2015 | Silver |
| SERV FIRE LIMITED | 06422301 | 08/11/2007 | 29/06/2014 | Silver |
| Vector Technical Solutions Ltd | 04133516 | 21/02/2001 | 01/04/2005 | Dissolved |