| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Expo 2000 Ltd | 03124261 | 11/12/1995 | Dissolved |
| N.I.F.E.S. Energy Ltd | 02982691 | 24/10/1994 | Dissolved |
| N.I.F.E.S. Energy Ltd | 02982691 | 11/10/2002 | Dissolved |
| N.I.F.E.S. Energy Supplies Ltd | 01977344 | 30/09/1991 | Dissolved |
| N.I.F.E.S. Energy Supplies Ltd | 01977344 | 30/09/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARCHANGEL DEVELOPMENTS LIMITED | 07399219 | 07/10/2010 | 11/12/2011 | Dissolved |
| BIOGAS TECHNOLOGY LIMITED | 02323287 | 18/07/1996 | 01/09/1999 | Silver |
| Ceramic Gas Cleaning (U K) Ltd | 03014878 | 06/10/1995 | 23/01/1996 | Dissolved |
| Ceramic Gas Cleaning (U K) Ltd | 03014878 | 05/10/1995 | 23/01/1996 | Dissolved |
| ENERGOS LIMITED | 03109022 | 21/03/1996 | 26/07/2000 | Dissolved |
| INENCO (SUBCO 1) LIMITED | 01593351 | 31/12/1990 | 19/06/2007 | Dissolved |
| INENCO (SUBCO 3) LIMITED | 01031298 | 31/12/1990 | 31/01/2006 | Dissolved |
| MATRECO LIMITED | 08098613 | 08/06/2012 | 18/09/2012 | Dissolved |
| PINNACLES REACH MANAGEMENT COMPANY LIMITED | 01916418 | 05/02/2011 | 10/11/2012 | Silver |
| Phoenix Power Holdings Ltd | 02336278 | 18/01/1992 | 31/01/2006 | Dissolved |
| RICHARD TWEEDALE ASSOCIATES LIMITED | 05907130 | 15/08/2006 | 31/03/2010 | Dissolved |
| STOR GENERATION LIMITED | 07510562 | 31/01/2011 | 18/09/2012 | Dissolved |