| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLEANRITE UK LIMITED | 04240119 | 02/01/2007 | Dissolved |
| Troutgate Ltd | 02100673 | 31/12/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| KNEBWORTH GOLF CLUB (THE) LIMITED | 00244093 | 26/03/2005 | 18/11/2011 | Bronze |
| NEXGEN FACILITIES SERVICES LONDON LTD | 03826851 | 14/01/2000 | 01/05/2000 | Silver |
| NEXGEN FACILITIES SERVICES LONDON LTD | 03826851 | 08/09/1999 | 31/03/2001 | Silver |
| OPTIM CONTRACT MANAGERS LIMITED | 02368838 | 06/04/1992 | 31/03/2001 | Dissolved |
| OPTIM SECURITY GUARDS LIMITED | 01812078 | 14/01/2000 | 01/12/2000 | Dissolved |
| OPTIM SECURITY GUARDS LIMITED | 01812078 | 18/12/1997 | 31/03/2001 | Dissolved |
| Optim Group Ltd | 02845549 | 14/07/1998 | 31/03/2001 | Dissolved |
| Optim U.K. Ltd | 02845247 | 14/07/1998 | 31/03/2001 | Dissolved |
| SCIENTRON LIMITED | 01847197 | 14/01/2000 | 01/12/2000 | Dissolved |
| SCIENTRON LIMITED | 01847197 | 02/04/1992 | 31/03/2001 | Dissolved |
| SERVEST (COMMERCIAL & PUBLIC SECTOR) LIMITED | 01345753 | 03/04/2001 | 02/12/2014 | Dissolved |
| SHERRYGRADE LIMITED | 01762195 | 01/10/1998 | 01/10/2001 | Gold |
| Talon Security Services Ltd | 02132997 | 01/08/1998 | 31/03/2001 | Dissolved |
| Xlnt Cleaners Ltd | 01963748 | 22/12/1992 | 31/03/2001 | Dissolved |