| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Engineering & Project Management Services Ltd | 02969680 | 29/11/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSOCIATION OF ELECTRICITY PRODUCERS LIMITED | 02779199 | 30/06/1995 | 12/07/2005 | Silver |
| Avonmouth Energy Ltd | 02465339 | 25/06/1996 | 23/07/1997 | Dissolved |
| ENERGY FROM WASTE KESTEVEN LTD. | 02842203 | 01/05/1999 | 31/12/2004 | Dissolved |
| FIBRE FUEL LIMITED | 02902165 | 15/12/1994 | 31/12/2004 | Not Trading |
| FIBRE POWER (SLOUGH) LIMITED | 02902170 | 02/02/1995 | 31/12/2004 | Bronze |
| Fibre Power (Bristol) Ltd | 03553604 | 30/04/1998 | 02/02/1999 | Dissolved |
| Fibre Power (Eastham) Ltd | 03553603 | 30/04/1998 | 02/02/1999 | Dissolved |
| Fibre Power (Horwich) Ltd | 01912310 | 25/06/1996 | 23/07/1997 | Dissolved |
| Fibre Power (Shotton) Ltd | 03553601 | 30/04/1998 | 02/02/1999 | Dissolved |
| HUNTSMAN'S MEADOW/WOODCOTE PLACE MANAGEMENT LIMITED | 03101930 | 26/03/1997 | 08/03/2002 | Silver |
| POWER FROM WASTE LIMITED | 02902302 | 31/03/1994 | 31/12/2004 | Not Trading |
| SEGRO PROPERTIES LIMITED | 00448911 | 01/06/1992 | 31/12/2004 | Silver |
| SLOUGH DOMESTIC ELECTRICITY LIMITED | 03486588 | 31/03/1998 | 31/12/2004 | Not Trading |
| SLOUGH ELECTRICITY CONTRACTS LIMITED | 02902219 | 12/01/1995 | 31/12/2004 | Silver |
| SLOUGH ENERGY SUPPLIES LIMITED | 02474514 | 01/06/1992 | 31/12/2004 | Not Trading |
| SLOUGH HEAT & POWER LIMITED | 00174142 | 19/12/1994 | 31/12/2004 | Bronze |
| SLOUGH TRADING ESTATE LIMITED | 01184323 | 01/06/1992 | 31/12/2004 | Silver |
| SLOUGH UTILITY SERVICES LIMITED | 03486590 | 31/03/1998 | 31/12/2004 | One Red Flag |
| Surrey Energy Recovery Ltd | 03553600 | 30/04/1998 | 02/02/1999 | Dissolved |