| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EDF DIN UK LIMITED | 07000768 | 25/08/2009 | Dissolved |
| NNB GENERATION COMPANY (BRB) LTD | 09284826 | 17/11/2014 | Dissolved |
| NNB HOLDING COMPANY (BRB) LTD | 09284746 | 17/11/2014 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| EDF ENERGY FLEET SERVICES LIMITED | 06573892 | 23/04/2008 | 01/04/2009 | Dissolved |
| EDF ENERGY INNOVATION LIMITED | 06999483 | 24/08/2009 | 17/05/2018 | Dissolved |
| EDF ENERGY RENEWABLES HOLDINGS LIMITED | 06658187 | 28/07/2008 | 11/10/2013 | Silver |
| LEA VALLEY UTILITIES LIMITED | 06043508 | 08/01/2007 | 01/04/2009 | Not Trading |
| NNB TOP COMPANY HPC (A) LTD | 09284749 | 17/11/2014 | 31/10/2017 | Bronze |
| NNB TOP COMPANY HPC (B) LTD | 09284753 | 17/11/2014 | 31/10/2017 | Bronze |
| NORFOLK OFFSHORE WIND LIMITED | 04231445 | 03/12/2007 | 01/04/2009 | Strike Off |
| SEEBOARD EMPLOYMENT SERVICES LIMITED | 02344161 | 24/10/2007 | 01/04/2009 | Dissolved |
| SEEBOARD HIGHWAY SERVICES LIMITED | 02981674 | 29/10/2007 | 01/04/2009 | Dissolved |
| UK POWER NETWORKS (IDNO FINANCE) LIMITED | 06573825 | 23/04/2008 | 01/04/2009 | Not Trading |
| UK POWER NETWORKS (IDNO) LIMITED | 06489447 | 31/01/2008 | 01/04/2009 | Not Trading |
| WEST HINKLEY WINDFARM LIMITED | 05119816 | 02/05/2008 | 01/04/2009 | Dissolved |