| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HAWLEY AND ASSOCIATES LIMITED | 03397911 | 03/07/1997 | Dissolved |
| THE CREATIVE VALUE NETWORK (CVN) LIMITED | 03928377 | 19/11/2002 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATKINSRÉALIS (WS) LIMITED | 01885586 | 01/04/1994 | 16/09/1997 | Gold |
| Abb Transportation Holdings Ltd | 02336529 | 10/07/1993 | 22/02/1995 | Dissolved |
| BRITISH ENERGY FINANCE LIMITED | SC173733 | 08/04/1997 | 30/06/1997 | Dissolved |
| BRITISH ENERGY INTERNATIONAL HOLDINGS LIMITED | SC138614 | 04/11/1996 | 30/06/1997 | Dissolved |
| BRITISH ENERGY INVESTMENT LIMITED | SC173730 | 08/04/1997 | 30/06/1997 | Dissolved |
| BRITISH ENERGY LIMITED | SC162273 | 13/12/1995 | 30/06/1997 | Dissolved |
| BRITISH ENERGY TRUSTEES LIMITED | SC164014 | 08/05/1996 | 30/06/1997 | Dissolved |
| British Energy International Ltd | SC166316 | 12/07/1996 | 30/06/1997 | Dissolved |
| COLT TECHNOLOGY SERVICES GROUP LIMITED | 03232904 | 11/12/2007 | 22/07/2009 | Bronze |
| EDF ENERGY NUCLEAR GENERATION LIMITED | 03076445 | 03/07/1995 | 01/04/1996 | Silver |
| ERATECH ENVIRONMENTAL LIMITED | 02780882 | 22/07/1997 | 25/02/2000 | Dissolved |
| ERATECH LIMITED | 03396866 | 14/08/1997 | 25/02/2000 | Dissolved |
| EUROPEAN TECHNOLOGIES INTERNATIONAL LIMITED | 03131694 | 13/07/2009 | 11/10/2020 | Dissolved |
| EXPLEO UK HOLDINGS LIMITED | 03218561 | 01/05/1997 | 21/12/2000 | Gold |
| Electricity Association Ltd | 02367010 | 14/10/1996 | 30/06/1997 | Dissolved |
| FOUNDATION FOR SCIENCE AND TECHNOLOGY | 01327814 | 01/04/1999 | 29/02/2016 | Dissolved |
| Gr@ce Holdings Plc | 05165972 | 01/06/2005 | 08/12/2005 | Dissolved |
| IET SERVICES LIMITED | 00909719 | 30/05/1995 | 30/09/1995 | Silver |
| LISTER PETTER INVESTMENT HOLDINGS LIMITED | 05222426 | 04/09/2006 | 31/12/2013 | Dissolved |
| NORTHERN POWER LIMITED | SC155131 | 04/11/1996 | 30/06/1997 | Silver |
| NUCLEAR RESTORATION SERVICES LIMITED | 02264251 | 19/10/1992 | 01/04/1996 | Amber |
| ROCKTRON LIMITED | 04120826 | 31/05/2001 | 31/12/2004 | Dissolved |
| ROTORK P.L.C. | 00578327 | 26/09/1996 | 16/11/1998 | Gold |
| RUTLAND TRUST PLC | 01491292 | 11/09/2000 | 09/07/2007 | Dissolved |
| Sleaford Power Ltd | SC172300 | 09/04/1997 | 30/06/1997 | Dissolved |
| TAYLOR WIMPEY PLC | 00296805 | 05/11/1998 | 29/05/2003 | Gold |
| TCT INTERNATIONAL PLC | 02979057 | 03/02/1997 | 06/09/2001 | Dissolved |
| THE DAPHNE JACKSON MEMORIAL FELLOWSHIPS TRUST | 06621472 | 01/11/2009 | 20/03/2013 | Silver |
| THE ENGINEERING AND TECHNOLOGY BOARD | 04322409 | 15/11/2001 | 01/06/2002 | Amber |
| THE INDUSTRIAL TRUST | 03406567 | 04/02/2004 | 30/06/2011 | Dissolved |
| THE INSTITUTION OF ENGINEERING AND TECHNOLOGY BENEVOLENT FUND | 00441284 | 01/10/1996 | 30/09/1997 | Bronze |
| WELSH POWER GROUP LIMITED | 05766467 | 25/04/2006 | 31/03/2009 | Silver |