| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BP P.L.C. | 00102498 | 10/05/1992 | 14/04/2005 | Silver |
| ELDERS GLASS LIMITED | 00068096 | 24/03/1995 | 31/07/1996 | Not Trading |
| EXETER SCIENCE PARK LIMITED | 06828415 | 10/05/2010 | 20/04/2017 | Bronze |
| MAENPORTH ESTATE COMPANY LIMITED | 02775229 | 01/10/1996 | 04/05/1998 | Silver |
| PILKINGTON BROTHERS UNLIMITED | 02108188 | 08/10/1992 | 31/07/1996 | Gold |
| PILKINGTON FINANCE UNLIMITED | 02108141 | 08/10/1992 | 31/07/1996 | Gold |
| PILKINGTON GROUP LIMITED | 00041495 | 01/08/1992 | 31/07/1996 | Gold |
| PILKINGTON TECHNOLOGY MANAGEMENT LIMITED | SC038385 | 10/12/1991 | 31/07/1996 | Gold |
| Pilkington Micro-Electronics Ltd | 02005869 | 14/12/1991 | 21/08/1996 | Dissolved |
| Pilkington Overseas Holdings (1991) Unlimited | 02156831 | 25/01/1992 | 31/07/1996 | Dissolved |
| Pilkington Overseas Holdings Unlimited | 02108189 | 08/10/1992 | 31/07/1996 | Dissolved |
| ROLLS-ROYCE GROUP LIMITED | 04706930 | 26/03/2003 | 04/05/2005 | Gold |
| ROLLS-ROYCE PLC | 01003142 | 13/06/1991 | 04/05/2005 | Silver |
| THALES OPTRONICS (HOLDINGS) LIMITED | 02156725 | 20/05/1992 | 24/11/1998 | Dissolved |
| THALES TRAINING AND SIMULATION LIMITED | 00426402 | 13/12/1996 | 31/03/1999 | Gold |
| THE BOC FOUNDATION | 02463316 | 17/11/1994 | 05/11/1997 | Not Trading |
| The University of Manchester Venture Fund Management Ltd | 03638000 | 06/04/1999 | 14/08/2007 | Dissolved |
| UEC ENTERPRISES LTD. | 05358257 | 25/05/2007 | 28/03/2013 | Dissolved |
| VILLAMOOR LIMITED | 01031750 | 09/03/1994 | 11/04/1996 | Not Trading |