| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A T R Holdings Ltd | 03642905 | 15/10/1998 | Dissolved |
| Aical Ltd | 01263957 | 11/10/1992 | Dissolved |
| Amtac Group Ltd | 04626882 | 11/04/2003 | Dissolved |
| Atr Manufacturing Group Ltd | 04626877 | 11/04/2003 | Dissolved |
| Oakthorne Ltd | 02883314 | 27/01/1994 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A.T.R. GROUP LIMITED | 01939827 | 30/10/1991 | 29/04/2004 | Dissolved |
| AMTAC CERTIFICATION SERVICES HOLDINGS LIMITED | 04927385 | 05/12/2003 | 16/12/2003 | Dissolved |
| AMTAC CERTIFICATION SERVICES LIMITED | 00829615 | 11/10/1992 | 16/12/2003 | Dissolved |
| ASSOCIATION OF CONSULTING SCIENTISTS LIMITED | 02534617 | 24/08/1991 | 09/03/2000 | Gold |
| BRITISH MEASUREMENT AND TESTING ASSOCIATION | 02574907 | 23/02/1995 | 11/11/1999 | Gold |
| BUREAU VERITAS CONSUMER PRODUCTS SERVICES HOLDINGS UK LIMITED | 04927383 | 05/12/2003 | 18/12/2003 | Dissolved |
| BUREAU VERITAS CONSUMER PRODUCTS SERVICES UK LIMITED | 00852439 | 11/10/1992 | 18/12/2003 | Amber |
| EUROLAB (UK) LIMITED | 02669781 | 17/01/1992 | 11/11/1999 | Gold |
| METAL INJECTION MOULDINGS LIMITED | 03118895 | 04/04/1996 | 29/04/2004 | Dissolved |
| MIM HOLDINGS LIMITED | 04626885 | 11/04/2003 | 29/04/2004 | Dissolved |
| P. I. CASTINGS LIMITED | 00478116 | 11/10/1992 | 29/04/2004 | Dissolved |
| P.I. CASTINGS GROUP LIMITED | 01415112 | 11/10/1992 | 29/04/2004 | Dissolved |
| TURBOTECH PRECISION PRODUCTS LIMITED | 02094056 | 03/11/1993 | 29/04/2004 | Silver |