| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DEESIDE POWER | FC028118 | 01/07/2015 | Dissolved |
| RAPID ENERGY LIMITED | 03039628 | 01/07/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DEESIDE POWER (UK) LIMITED | 08887001 | 01/07/2015 | 16/10/2017 | Gold |
| ENGIE UK MARKETS LIMITED | 02462479 | 01/07/2015 | 16/10/2017 | Bronze |
| FHH (GUERNSEY) LIMITED | FC025237 | 01/07/2015 | 31/08/2017 | Dissolved |
| FHH NO.1 LIMITED | 04984508 | 01/07/2015 | 31/08/2017 | Bronze |
| FIRST HYDRO COMPANY | 02444277 | 01/07/2015 | 31/08/2017 | Gold |
| FIRST HYDRO FINANCE PLC | 03085928 | 01/07/2015 | 31/08/2017 | Gold |
| FIRST HYDRO HOLDINGS COMPANY | 03140052 | 01/07/2015 | 31/08/2017 | Bronze |
| INDIAN QUEENS OPERATIONS LIMITED | 03199510 | 01/07/2015 | 16/10/2017 | Dissolved |
| INDIAN QUEENS POWER LIMITED | 02928100 | 01/07/2015 | 16/10/2017 | Silver |
| INTERNATIONAL POWER FUEL COMPANY LIMITED | 03867156 | 01/07/2015 | 16/10/2017 | Amber |
| IPM (BORELLI) LIMITED | 05309008 | 01/07/2015 | 16/10/2017 | Dissolved |
| IPM ENERGY LIMITED | 02704476 | 01/07/2014 | 16/10/2017 | Strike Off |
| IPM MARKETING AND SERVICES LIMITED | 03749201 | 01/07/2015 | 31/08/2017 | Dissolved |
| IPM OPERATIONS AND MAINTENANCE LIMITED | 03139053 | 01/07/2015 | 31/08/2017 | Dissolved |
| IQ POWER HOLDINGS LIMITED | 05889069 | 01/07/2015 | 16/10/2017 | Dissolved |
| MITSUI POWER VENTURES LIMITED | 05180834 | 01/07/2015 | 31/10/2017 | Silver |
| NORMANTRAIL (UK CO 3) LIMITED | 05234591 | 01/07/2015 | 16/10/2017 | Dissolved |
| RUGELEY POWER GENERATION LIMITED | 03300792 | 01/07/2015 | 12/09/2017 | Not Trading |
| SALTEND OPERATIONS COMPANY LIMITED | 04241615 | 01/07/2015 | 16/10/2017 | Bronze |