| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AQUILA POWER INVESTMENTS LIMITED | 03600770 | 02/07/2012 | 12/06/2014 | Dissolved |
| AVON ENERGY PARTNERS HOLDINGS | 03196714 | 02/07/2012 | 31/05/2016 | Dissolved |
| CHN CONTRACTORS LIMITED | 01848588 | 02/07/2012 | 31/05/2016 | Not Trading |
| CHN ELECTRICAL SERVICES LIMITED | 02980221 | 02/07/2012 | 31/05/2016 | Not Trading |
| CHN GROUP LTD | 03430063 | 02/07/2012 | 31/05/2016 | Not Trading |
| CHN SPECIAL PROJECTS LIMITED | 03810097 | 02/07/2012 | 31/05/2016 | Not Trading |
| CITIGEN (LONDON) LIMITED | 02427823 | 07/01/2013 | 31/05/2016 | Bronze |
| E.ON CONNECTING ENERGIES LIMITED | 07592412 | 31/01/2013 | 08/05/2013 | Silver |
| E.ON ENERGY SOLUTIONS LIMITED | 03407430 | 02/07/2012 | 31/05/2016 | Gold |
| E.ON PROJECT EARTH LIMITED | 08045735 | 31/01/2013 | 31/05/2016 | Bronze |
| E.ON UK CHP LIMITED | 02684288 | 07/01/2013 | 31/05/2016 | Silver |
| E.ON UK ENERGY LINCOLN LIMITED | 02194091 | 02/07/2012 | 01/09/2014 | Dissolved |
| E.ON UK ENERGY SERVICES LIMITED | 05615669 | 02/07/2012 | 31/05/2016 | Not Trading |
| E.ON UK GREEN FUNDING SOLUTIONS LIMITED | 02730697 | 07/01/2013 | 31/05/2016 | Gold |
| E.ON UK HOLDING COMPANY LIMITED | 01313782 | 12/06/2013 | 31/05/2016 | Bronze |
| E.ON UK NETWORK ASSETS LIMITED | 03810087 | 02/07/2012 | 31/05/2016 | Not Trading |
| E.ON UK PLC | 02366970 | 02/07/2012 | 31/05/2016 | Gold |
| E.ON UK PROPERTY SERVICES LIMITED | 03810083 | 02/07/2012 | 31/05/2016 | Not Trading |
| E.ON UK PS LIMITED | 06764957 | 02/07/2012 | 31/05/2016 | Not Trading |
| EAST MIDLANDS ELECTRICITY DISTRIBUTION HOLDINGS | 04254217 | 02/07/2012 | 31/05/2016 | Dissolved |
| MIDLANDS GENERATION (OVERSEAS) LIMITED | 02772596 | 02/07/2012 | 15/05/2014 | Dissolved |
| MIDLANDS POWER INTERNATIONAL LIMITED | 02618314 | 02/07/2012 | 12/06/2014 | Dissolved |
| POWERGEN (EAST MIDLANDS) INVESTMENTS | 03277352 | 02/07/2012 | 15/05/2014 | Dissolved |
| POWERGEN GROUP HOLDINGS LIMITED | 04076737 | 01/10/2013 | 09/09/2014 | Dissolved |
| POWERGEN GROUP INVESTMENTS | 04120471 | 01/10/2013 | 09/09/2014 | Dissolved |
| POWERGEN HOLDINGS B.V. | FC026689 | 02/07/2012 | 12/10/2016 | Dissolved |
| POWERGEN INTERNATIONAL | 03548380 | 02/07/2012 | 31/05/2016 | Dissolved |
| POWERGEN LIMITED | 03586615 | 01/10/2013 | 31/05/2016 | Not Trading |
| POWERGEN UK HOLDING COMPANY LIMITED | 05313045 | 01/10/2013 | 09/09/2014 | Dissolved |
| POWERGEN UK INVESTMENTS | 04116668 | 01/10/2013 | 31/05/2016 | Not Trading |
| POWERGEN UK SECURITIES | 04191316 | 01/10/2013 | 09/09/2014 | Dissolved |
| POWERGEN US HOLDINGS | 03757718 | 01/10/2013 | 31/05/2016 | Dissolved |
| POWERGEN US INVESTMENTS | 02480356 | 01/10/2013 | 31/05/2016 | Dissolved |
| POWERGEN US SECURITIES | 04258957 | 01/10/2013 | 31/05/2016 | Dissolved |
| RAAB KARCHER ELECTRONIC SYSTEMS LIMITED | 03087431 | 01/10/2013 | 09/09/2014 | Dissolved |
| UNIPER UK LIMITED | 02796628 | 02/07/2012 | 24/08/2015 | Gold |