| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Frank Shed Consultancy Ltd | 05221608 | 03/09/2004 | Dissolved |
| STORGEN LIMITED | 07217742 | 08/04/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CALE POWER LIMITED | 06606972 | 30/05/2008 | 12/03/2009 | Amber |
| CARRON ENERGY HOLDINGS LIMITED | 05150413 | 07/02/2008 | 12/03/2009 | Silver |
| CARRON ENGINEERING & CONSTRUCTION LIMITED | 06313902 | 02/08/2007 | 10/09/2007 | Dissolved |
| Coniston Power Ltd | 06760800 | 28/11/2008 | 12/03/2009 | Dissolved |
| DRAGON GENERATION LIMITED | 06458823 | 07/02/2008 | 12/03/2009 | Silver |
| DRAGON POWER DEVELOPMENTS LIMITED | 06703533 | 22/09/2008 | 12/03/2009 | Not Trading |
| DRAX ENERGY SOLUTIONS LIMITED | 05893966 | 07/02/2008 | 06/03/2009 | Silver |
| Huntspill Power Co Ltd | 06607043 | 30/05/2008 | 12/03/2009 | Dissolved |
| LEVEN POWER LIMITED | 05440338 | 04/04/2008 | 12/03/2009 | One Red Flag |
| NEVIS POWER LIMITED | 05598999 | 07/02/2008 | 12/03/2009 | One Red Flag |
| ORSTED SP HOLDING (UK) LIMITED | 06454112 | 07/02/2008 | 06/03/2009 | Silver |
| Orwell Power Ltd | 06619439 | 13/06/2008 | 12/03/2009 | Dissolved |
| SEVERN GAS TRANSPORTATION LIMITED | 05121224 | 07/02/2008 | 06/03/2009 | One Red Flag |
| SEVERN POWER FUNDING LIMITED | 06537284 | 18/09/2008 | 06/03/2009 | Dissolved |
| SEVERN POWER LIMITED | 05392552 | 07/02/2008 | 06/03/2009 | Bronze |
| SIMEC USKMOUTH POWER LIMITED | 05104786 | 07/02/2008 | 12/03/2009 | Bronze |
| USKMOUTH HOLDING COMPANY LIMITED | 05860202 | 07/02/2008 | 12/03/2009 | Amber |
| WELSH POWER GROUP LIMITED | 05766467 | 20/11/2008 | 31/03/2009 | Silver |
| WPG ENERGY LIMITED | 05150453 | 07/02/2008 | 12/03/2009 | Silver |
| WYRE GAS TRANSPORTATION LIMITED | 06658221 | 28/07/2008 | 12/03/2009 | Strike Off |
| WYRE POWER LIMITED | 06449211 | 07/02/2008 | 12/03/2009 | One Red Flag |