| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Knowledge Process Software Plc | 04066384 | 21/12/2000 | Dissolved |
| Thinkdigital Solutions (Holdings) Plc | 03973246 | 01/05/2001 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARTEMIS INTERNATIONAL CORPORATION LIMITED | 00492334 | 11/12/1992 | 23/06/1995 | Silver |
| Agl Ltd | 03873979 | 01/06/2001 | 21/02/2003 | Dissolved |
| Amchem Ltd | 03873972 | 30/11/2001 | 21/02/2003 | Dissolved |
| BPSE LIMITED | 03430272 | 24/09/1997 | 05/01/2011 | Dissolved |
| C S C Engineering & Systems Ltd | 00301440 | 11/12/1992 | 02/06/1995 | Dissolved |
| J PARNABY PARTNERS LIMITED | 07423882 | 29/10/2010 | 05/01/2011 | Amber |
| JARVIS PLC | 02238084 | 06/10/1998 | 03/08/2000 | Dissolved |
| LUCAS AUTOMOTIVE LIMITED | 00870649 | 10/12/1992 | 01/11/1996 | Dissolved |
| Lucas Applied Technology Ltd | 00380630 | 10/12/1992 | 01/11/1996 | Dissolved |
| MPAC GROUP PLC | 00124855 | 13/07/1998 | 21/04/1999 | Gold |
| NORTHROP GRUMMAN PROPERTIES LIMITED | 00870199 | 10/12/1992 | 01/11/1996 | Gold |
| OPTEGRA BIRMINGHAM LIMITED | 04609700 | 07/04/2003 | 31/08/2009 | Dissolved |
| SCOTTISH POWER LIMITED | SC193794 | 29/03/1999 | 27/07/2001 | Bronze |
| SCOTTISH POWER UK PLC | SC117120 | 30/09/1994 | 02/08/1999 | Bronze |
| THE INSTITUTION OF ENGINEERING AND TECHNOLOGY BENEVOLENT FUND | 00441284 | 01/10/1995 | 30/09/1996 | Bronze |