| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Ocs Support Services Northern Ireland Ltd | 04244530 | 04/10/2001 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 00251293 LIMITED | 00251293 | 29/01/2002 | 19/04/2006 | Dissolved |
| AIDS CARE EDUCATION AND TRAINING | 02245302 | 20/06/2002 | 22/06/2004 | Silver |
| Boocock & Barrie Ltd | 02544588 | 31/12/2001 | 19/04/2006 | Dissolved |
| CLEANMASTER LIMITED | 00827684 | 19/08/1999 | 19/04/2006 | Dissolved |
| CRADLE RUNWAYS LIMITED | 00679279 | 19/08/1999 | 19/04/2006 | Dissolved |
| Centuryan Safety Services Ltd | 00463705 | 19/08/1999 | 19/04/2006 | Dissolved |
| Centuryan Security Ltd | 02341827 | 19/08/1999 | 19/04/2006 | Dissolved |
| City Security Holdings Ltd | 02287277 | 29/01/2002 | 19/04/2006 | Dissolved |
| Cleaner-Phones Ltd | 00810837 | 01/06/1994 | 25/09/1995 | Dissolved |
| Collie Carpets Ltd | 00568763 | 29/01/2002 | 19/04/2006 | Dissolved |
| Computaclean Ltd | 03211505 | 29/01/2002 | 19/04/2006 | Dissolved |
| EUROLIANCE LIMITED | 03829473 | 13/03/2000 | 19/04/2006 | Amber |
| Fall Protection Ltd | 02672140 | 29/01/2002 | 19/04/2006 | Dissolved |
| Global Track Corporation Ltd. | 03092753 | 19/08/1999 | 19/04/2006 | Dissolved |
| New Chesterton Cleaning Ltd | 00638838 | 29/01/2002 | 19/04/2006 | Dissolved |
| O C S Cleaning U K Ltd | 02464271 | 19/08/1999 | 19/04/2006 | Dissolved |
| O.C.S. New Century Ltd | 01780843 | 19/08/1999 | 19/04/2006 | Dissolved |
| O.C.S. Nominees Ltd | 02554392 | 11/01/2001 | 19/04/2006 | Dissolved |
| OASIS CHARITABLE TRUST | 02818823 | 18/05/1993 | 07/12/2004 | Gold |
| OFFICE CLEANING SERVICES LIMITED | 00180848 | 19/08/1999 | 19/04/2006 | Dissolved |
| Ocs (England) Ltd | 04245553 | 04/10/2001 | 19/04/2006 | Dissolved |
| Ocs Cleaning Ltd | 03073841 | 29/01/2002 | 19/04/2006 | Dissolved |
| Ocs Cleaning Midlands & North Ltd | 00686015 | 19/08/1999 | 19/04/2006 | Dissolved |
| Ocs Support Services Scotland Ltd | 04241380 | 04/10/2001 | 19/04/2006 | Dissolved |
| Ocs Support Services Wales Ltd | 04244284 | 16/10/2001 | 19/04/2006 | Dissolved |
| One Complete Solution Ltd | 04278232 | 12/10/2001 | 19/04/2006 | Dissolved |
| Primex Electrical Services Ltd | 02545978 | 29/01/2002 | 19/04/2006 | Dissolved |
| STRAND CLEANING SERVICES LIMITED | 00384386 | 19/08/1999 | 19/04/2006 | Dissolved |
| Sisco Safety Ltd | SC050443 | 29/01/2002 | 19/04/2006 | Dissolved |
| Skyliner Services Ltd | 01054534 | 19/08/1999 | 19/04/2006 | Dissolved |
| Sovereign Catering Services Ltd | 02415255 | 04/08/2003 | 19/04/2006 | Dissolved |
| THE NEW CENTURY CLEANING COMPANY LIMITED | 02672002 | 19/08/1999 | 19/04/2006 | Dissolved |
| Technoclean Ltd | 02022318 | 19/08/1999 | 19/04/2006 | Dissolved |
| The Airport Connection Ltd. | 02538716 | 19/08/1999 | 19/04/2006 | Dissolved |
| Tml Ltd | 01205999 | 04/08/2003 | 19/04/2006 | Dissolved |
| Trident Contract Services Ltd | 02415776 | 04/08/2003 | 19/04/2006 | Dissolved |
| WETTON CLEANING SERVICES LIMITED | 00473038 | 01/06/1994 | 21/04/1995 | Bronze |
| Wasco (Curtainmaster) Ltd | 02289785 | 19/08/1999 | 19/04/2006 | Dissolved |
| Wasco (Fox) Ltd | 02415257 | 19/08/1999 | 19/04/2006 | Dissolved |