| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Carron Energy Recruitment Ltd | 07002070 | 26/08/2009 | Dissolved |
| Carron Power & Gas Ltd | 06788774 | 12/01/2009 | Dissolved |
| Coniston Power Ltd | 06760800 | 28/11/2008 | Dissolved |
| Huntspill Power Co Ltd | 06607043 | 30/05/2008 | Dissolved |
| Mandrake Media Ltd | 04734797 | 02/05/2003 | Dissolved |
| Orwell Power Ltd | 06619439 | 13/06/2008 | Dissolved |
| Scott Phillips Townsley Ltd | 03625466 | 02/09/1998 | Dissolved |
| TOWNSLEY HR SERVICES LIMITED | 06350132 | 07/12/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARTEZE LIMITED | SC309594 | 03/10/2006 | 14/11/2007 | Dissolved |
| ASSOCIATION OF ELECTRICITY PRODUCERS LIMITED | 02779199 | 15/09/2011 | 26/04/2012 | Bronze |
| CARRON ENGINEERING & CONSTRUCTION LIMITED | 06313902 | 24/07/2007 | 06/03/2009 | Dissolved |
| DARENT POWER LIMITED | 07109002 | 21/12/2009 | 21/07/2014 | Amber |
| DRAX ENERGY SOLUTIONS LIMITED | 05893966 | 13/10/2006 | 06/03/2009 | Silver |
| Gothica Films Ltd | 03915705 | 03/02/2000 | 01/06/2004 | Dissolved |
| LEVEN POWER LIMITED | 05440338 | 18/09/2008 | 21/07/2014 | One Red Flag |
| ORSTED SP HOLDING (UK) LIMITED | 06454112 | 18/01/2008 | 06/03/2009 | Silver |
| Purgatory Films Ltd | 03195774 | 09/05/2000 | 01/06/2004 | Dissolved |
| RENEWABLE POWER & LIGHT LIMITED | 05817450 | 07/11/2006 | 18/05/2010 | Dissolved |
| RHYMNEY POWER LIMITED | 07259510 | 20/05/2010 | 21/07/2014 | One Red Flag |
| SALVATION FILMS LIMITED | 07088710 | 27/11/2009 | 19/04/2010 | Amber |
| SEVERN GAS TRANSPORTATION LIMITED | 05121224 | 05/07/2004 | 06/03/2009 | Amber |
| SEVERN POWER FUNDING LIMITED | 06537284 | 18/03/2008 | 06/03/2009 | Dissolved |
| SEVERN POWER LIMITED | 05392552 | 15/03/2005 | 06/03/2009 | Amber |
| SIMEC USKMOUTH POWER LIMITED | 05104786 | 05/07/2004 | 16/11/2004 | Silver |
| SIMEC USKMOUTH POWER LIMITED | 05104786 | 05/07/2004 | 13/08/2009 | Silver |
| Sister Europe (Films) Ltd | 06012782 | 29/11/2006 | 20/11/2007 | Dissolved |
| The Contracts and Commercial Management Association | 02102680 | 12/07/1991 | 30/04/1993 | Dissolved |