| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BOURNS LIMITED | 03016831 | 11/01/1996 | 30/09/2002 | Silver |
| Energy Technology Products Ltd | 02918545 | 22/03/1995 | 07/04/1997 | Dissolved |
| INTERBUSINESS GROUP LIMITED | 02508309 | 04/06/1992 | 31/03/1996 | Dissolved |
| STERLING SOFTWARE (UK) III LIMITED | 02488769 | 01/05/1991 | 01/01/1995 | Strike Off |
| Sterling Software (U K) Iv | 01601256 | 19/01/1992 | 01/01/1995 | Dissolved |
| TECHUK LTD | 01200318 | 16/05/2002 | 01/10/2002 | Silver |
| TEXAS INSTRUMENTS LIMITED | 00574102 | 17/04/1991 | 01/01/1995 | Gold |
| THE BRITISH QUALITY FOUNDATION | 02770257 | 29/11/1993 | 12/07/2006 | Silver |
| The Federation of The Electronics Industry | 04095789 | 01/01/2001 | 15/05/2002 | Dissolved |