| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DERWENT COGENERATION LIMITED | 02650621 | 03/08/2020 | Dissolved |
| DISTRICT ENERGY LIMITED | 02362017 | 03/08/2020 | Dissolved |
| DRAX GCO LIMITED | 05677568 | 01/01/2016 | Dissolved |
| DRAX OUSE | 03618559 | 01/01/2016 | Dissolved |
| REPONO BIDCO LIMITED | 09846864 | 03/08/2020 | Dissolved |
| REPONO CM HOLDCO LIMITED | 09846907 | 03/08/2020 | Dissolved |
| REPONO HOLDCO 2 LIMITED | 09844805 | 03/08/2020 | Dissolved |
| REPONO INTERCO LIMITED | 09845638 | 03/08/2020 | Dissolved |
| REPONO MIDCO LIMITED | 09846187 | 03/08/2020 | Dissolved |
| STABILITY ISLAND PROJECTS LIMITED | 13429231 | 24/06/2021 | Dissolved |
| UK DYNAMIC RESERVE LIMITED | 10890652 | 03/08/2020 | Dissolved |
| UK FLEXIBLE RESERVE LIMITED | 10896260 | 03/08/2020 | Dissolved |
| UK POWER RESERVE (LTC) LIMITED | 07767865 | 03/08/2020 | Dissolved |
| UK POWER RESERVE (SOUTH CORNELLY) LIMITED | 07923609 | 03/08/2020 | Dissolved |
| UK POWER RESERVE (ST HELENS) LIMITED | 07677934 | 03/08/2020 | Dissolved |
| UK POWER RESERVE (STYAL ROAD) LIMITED | 07692343 | 03/08/2020 | Dissolved |
| UK STRATEGIC RESERVE LIMITED | 09588656 | 03/08/2020 | Dissolved |
| WHITETAIL CLEAN ENERGY LTD | 13449350 | 21/01/2022 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ABERGELLI POWER LIMITED | 08190497 | 05/12/2016 | 07/04/2020 | Amber |
| AES DRAX ACQUISITION LIMITED | 03834878 | 01/01/2016 | 07/04/2020 | Not Trading |
| ASSOCIATION OF ELECTRICITY PRODUCERS LIMITED | 02779199 | 15/11/2023 | 30/01/2024 | Silver |
| DRAX BIOMASS HOLDINGS LIMITED | 08322715 | 01/01/2016 | 07/04/2020 | Amber |
| DRAX CORPORATE LIMITED | 05562058 | 01/01/2016 | 07/04/2020 | Amber |
| DRAX FINCO PLC | 10664639 | 10/03/2017 | 07/04/2020 | Bronze |
| DRAX GENERATION DEVELOPMENTS LIMITED | 07821368 | 01/01/2016 | 07/04/2020 | Bronze |
| DRAX GROUP PLC | 05562053 | 01/01/2016 | 07/04/2020 | Silver |
| DRAX HYDRO LIMITED | 08654218 | 04/09/2019 | 07/04/2020 | Gold |
| DRAX INNOVATION LIMITED | 10664715 | 10/03/2017 | 07/04/2020 | Gold |
| DRAX PENSION TRUSTEES LIMITED | 09824989 | 16/06/2017 | 07/04/2020 | Not Trading |
| DRAX PUMPED STORAGE LIMITED | 06657336 | 01/01/2016 | 07/04/2020 | Silver |
| DRAX RESEARCH AND INNOVATION HOLDCO LIMITED | 06657454 | 01/01/2016 | 07/04/2020 | One Red Flag |
| DRAX RETAIL DEVELOPMENTS LIMITED | 10711130 | 05/04/2017 | 07/04/2020 | Not Trading |
| DRAX RIVER HYDRO LIMITED | 05956747 | 04/09/2019 | 07/04/2020 | Gold |
| DRAX SMART GENERATION HOLDCO LIMITED | 07821911 | 01/01/2016 | 07/04/2020 | Bronze |
| DRAX SMART SOURCING HOLDCO LIMITED | 07821375 | 01/01/2016 | 07/04/2020 | Silver |
| DRAX SMART SUPPLY HOLDCO LIMITED | 10664625 | 10/03/2017 | 07/04/2020 | Bronze |
| GB DEVELOPERS LIMITED | 04480584 | 03/08/2020 | 15/01/2024 | Gold |
| HAVEN HEAT LIMITED | 06657428 | 01/01/2016 | 07/04/2020 | Not Trading |
| HIRWAUN POWER LIMITED | 08190283 | 05/12/2016 | 07/04/2020 | Amber |
| MILLBROOK POWER LIMITED | 08920458 | 05/12/2016 | 07/04/2020 | Amber |
| PROGRESS POWER LIMITED | 08421833 | 05/12/2016 | 07/04/2020 | Amber |
| REPONO HOLDCO 1 LIMITED | 09844502 | 03/08/2020 | 15/01/2024 | Bronze |
| SEMBCORP (WILTON BESS) LIMITED | 15151480 | 20/09/2023 | 15/01/2024 | Bronze |
| SEMBCORP ENERGY UK LIMITED | 11369893 | 03/08/2020 | 11/01/2024 | Silver |
| SEMBCORP HOLDINGS LIMITED | 06707340 | 01/07/2021 | 15/01/2024 | Silver |
| SEMBCORP INVESTMENTS (CHINA) LIMITED | 06894845 | 01/07/2021 | 15/01/2024 | Silver |
| SEMBCORP UTILITIES (UK) LIMITED | 04636301 | 03/08/2020 | 11/01/2024 | Gold |
| SEMBCORP UTILITIES SERVICES LIMITED | 03757398 | 01/07/2021 | 15/01/2024 | Gold |
| SMW LIMITED | SC165988 | 31/12/2018 | 07/04/2020 | Gold |
| STALLINGBOROUGH PROPERTIES LIMITED | 06809430 | 03/08/2020 | 15/01/2024 | Gold |
| UK CAPACITY RESERVE LIMITED | 09152381 | 03/08/2020 | 15/01/2024 | Gold |
| UK ENERGY RESERVE LIMITED | 10260309 | 03/08/2020 | 15/01/2024 | Bronze |
| UK POWER RESERVE (ASFORDBY) LIMITED | 07618247 | 03/08/2020 | 15/01/2024 | Amber |
| UK POWER RESERVE (MONCKTON ROAD) LIMITED | 07441588 | 03/08/2020 | 15/01/2024 | Amber |
| UK POWER RESERVE (TRUMFLEET) LTD | 07004203 | 03/08/2020 | 15/01/2024 | Silver |
| UK POWER RESERVE LIMITED | 07385282 | 03/08/2020 | 15/01/2024 | Bronze |
| UK UTILITY RESERVE LIMITED | 11008814 | 03/08/2020 | 15/01/2024 | Gold |
| VPI POWER LIMITED | SC189124 | 31/12/2018 | 07/04/2020 | Silver |
| WILTON ENERGY LIMITED | 04557531 | 03/08/2020 | 15/01/2024 | Bronze |