| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CENTRAL ENGLAND PROPERTIES LIMITED | 02796195 | 12/03/1993 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AQUACHECK LIMITED | 04651692 | 16/06/2006 | 28/10/2010 | Dissolved |
| FOCUS FORENSIC TELECOMMUNICATIONS LIMITED | 04519628 | 11/02/2009 | 28/10/2010 | Dissolved |
| FORENSIC ALLIANCE LIMITED | 03218467 | 10/08/2005 | 28/10/2010 | Dissolved |
| LGC (HOLDINGS) LIMITED | 03141667 | 03/11/2004 | 28/10/2010 | Silver |
| LGC (NORTH WEST) LIMITED | 03427706 | 24/03/2007 | 28/10/2010 | Amber |
| LGC (TEDDINGTON) LIMITED | 04090255 | 24/03/2007 | 28/10/2010 | Amber |
| LGC COLESHILL LIMITED | 04536718 | 10/08/2005 | 28/10/2010 | Dissolved |
| LGC GROUP HOLDINGS LIMITED | 04812200 | 03/11/2004 | 28/10/2010 | Amber |
| LGC INVESTMENTS LIMITED | 04841827 | 03/11/2004 | 28/10/2010 | Gold |
| LGC LIMITED | 02991879 | 03/11/2004 | 28/10/2010 | Gold |
| LGC SCIENCE GROUP LIMITED | 07110945 | 05/03/2010 | 28/10/2010 | Amber |
| LGC SCIENCE HOLDINGS LIMITED | 07115745 | 05/03/2010 | 28/10/2010 | Silver |
| LGC SCIENCE INVESTMENTS LIMITED | 07068771 | 05/03/2010 | 28/10/2010 | Silver |
| LGC SCIENCE LIMITED | 04991733 | 03/11/2004 | 28/10/2010 | Dissolved |
| PROMOCHEM LIMITED | 02086249 | 03/12/2007 | 28/10/2010 | Dissolved |
| QUALITY MANAGEMENT HOLDINGS LIMITED | 05383025 | 30/04/2006 | 28/10/2010 | Amber |
| QUALITY MANAGEMENT LIMITED | 02716264 | 16/06/2006 | 28/10/2010 | Dissolved |
| TEDDINGTON 2 LIMITED | 07110936 | 05/03/2010 | 28/10/2010 | Amber |
| UNIVERSITY DIAGNOSTICS LIMITED | 02146022 | 03/12/2007 | 28/10/2010 | Dissolved |