| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Biomass and Biofuels Association | 01494539 | 25/06/1991 | Dissolved |
| RITCHY MANAGEMENT COMPANY LIMITED | 02802813 | 24/04/2006 | Silver |
| Shanks & McEwan (Ballochney Power Generation) Ltd | 02631343 | 19/02/1993 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Adamson 2005 Ltd | 01668348 | 18/02/1993 | 10/08/1996 | Dissolved |
| BIFFA SRF TRADING LTD | 02563623 | 18/02/1993 | 10/08/1996 | Silver |
| DENE HOUSE COURT MANAGEMENT COMPANY LIMITED | 03399071 | 01/04/2002 | 01/12/2005 | Bronze |
| Dynamotive Europe Ltd | 03244426 | 19/09/1996 | 09/10/2000 | Dissolved |
| EXPRESS POWER LIMITED | 04537999 | 10/10/2002 | 10/12/2008 | Dissolved |
| FCC WASTE SERVICES (UK) LIMITED | 00988844 | 30/06/1992 | 29/03/1993 | Gold |
| Norgen Land Fill Gas Ltd | 02437203 | 09/02/1993 | 12/07/1996 | Dissolved |
| REGAIN RECYCLING & PLASTICS LTD | 05140908 | 22/10/2004 | 30/11/2008 | Dissolved |
| Shanks & McEwan (Energy Services) Ltd | 01686361 | 01/05/1993 | 10/08/1996 | Dissolved |
| Shanks & McEwan (Gas) Ltd | 01706934 | 01/05/1993 | 10/08/1996 | Dissolved |