| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| G2E CONSULTING LIMITED | 08141603 | 12/07/2012 | Silver |
| GA ENERGY SOLUTIONS LIMITED | 12935512 | 07/10/2020 | Bronze |
| IMPALA DODO LIMITED | FC028029 | 25/03/2010 | Dissolved |
| IPM (ELEONORA) LIMITED | FC028049 | 25/03/2010 | Dissolved |
| IPM (ZETA) LIMITED | 05452637 | 08/08/2007 | Dissolved |
| Ip Dodo 2 Ltd | 06244104 | 17/05/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DEESIDE POWER | FC028118 | 08/08/2007 | 31/07/2012 | Dissolved |
| ENGIE UK MARKETS LIMITED | 02462479 | 20/06/2007 | 31/07/2012 | Bronze |
| FHH NO.2 LIMITED | 04984510 | 25/03/2010 | 31/07/2012 | Dissolved |
| IMPALA CUCKOO CO 7 | FC028073 | 25/03/2010 | 31/07/2012 | Dissolved |
| IMPALA KINGFISHER LIMITED | FC028031 | 25/03/2010 | 31/07/2012 | Dissolved |
| IMPALA KOOKABURRA LIMITED | FC028028 | 25/03/2010 | 31/07/2012 | Dissolved |
| IMPALA MAGPIE LIMITED | FC028030 | 25/03/2010 | 31/07/2012 | Dissolved |
| INDIAN QUEENS OPERATIONS LIMITED | 03199510 | 18/09/2006 | 31/07/2012 | Dissolved |
| INDIAN QUEENS POWER LIMITED | 02928100 | 18/09/2006 | 31/07/2012 | Silver |
| INTERNATIONAL POWER (TRADING) LIMITED | 04995302 | 01/08/2008 | 31/07/2012 | Dissolved |
| INTERNATIONAL POWER FUEL COMPANY LIMITED | 03867156 | 08/08/2007 | 31/07/2012 | Amber |
| INTERNATIONAL POWER RETAIL SUPPLY COMPANY (UK) LIMITED | 06346398 | 17/08/2007 | 31/07/2012 | One Red Flag |
| IPM (BORELLI) LIMITED | 05309008 | 08/08/2007 | 31/07/2012 | Dissolved |
| IPM (LANNER) LIMITED | FC028050 | 25/03/2010 | 31/07/2012 | Dissolved |
| IPM (OSPREY) LIMITED | FC028051 | 08/08/2007 | 31/07/2012 | Dissolved |
| IPM (UK) POWER | FC027761 | 19/08/2007 | 31/07/2012 | Dissolved |
| IPM (UK) POWER HOLDINGS | FC027760 | 19/08/2007 | 31/07/2012 | Dissolved |
| IPM EAGLE SERVICES LIMITED | 02703635 | 16/12/2004 | 31/07/2012 | Dissolved |
| IPM ENERGY COMPANY (UK) LIMITED | 02500718 | 25/03/2010 | 31/07/2012 | Gold |
| IPM ENERGY RETAIL LIMITED | 06054816 | 23/10/2008 | 30/09/2011 | Amber |
| IPM PORTFOLIO TRADING | FC028194 | 24/02/2008 | 31/07/2012 | Dissolved |
| IPM ROYALE | FC022441 | 25/03/2010 | 31/07/2012 | N/A |
| IQ POWER HOLDINGS LIMITED | 05889069 | 04/09/2006 | 31/07/2012 | Dissolved |
| MAJESTIC ENERGY | 03732369 | 25/03/2010 | 31/07/2012 | Dissolved |
| NORMANBRIGHT (UK CO 5) LIMITED | 05234585 | 25/03/2010 | 31/07/2012 | Amber |
| NORMANFRAME (UK CO 6) LIMITED | 05250056 | 25/03/2010 | 31/07/2012 | Amber |
| NORMANTRAIL (UK CO 3) LIMITED | 05234591 | 08/08/2007 | 31/07/2012 | Dissolved |
| OPUS ENERGY GROUP LIMITED | 04409377 | 10/05/2006 | 27/07/2012 | Gold |
| RUGELEY POWER GENERATION LIMITED | 03300792 | 08/08/2007 | 31/07/2012 | Not Trading |
| RUGELEY POWER LIMITED | 04212554 | 08/08/2007 | 31/07/2012 | One Red Flag |
| SALTEND COGENERATION COMPANY LIMITED | 03274929 | 11/01/2006 | 31/07/2012 | Silver |
| SALTEND OPERATIONS COMPANY LIMITED | 04241615 | 11/01/2006 | 31/01/2012 | Bronze |
| VGL (GUERNSEY) LIMITED | FC025238 | 25/03/2010 | 31/07/2012 | Dissolved |