| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DERWENT COGENERATION LIMITED | 02650621 | 19/06/2018 | Dissolved |
| DISTRICT ENERGY LIMITED | 02362017 | 31/05/2018 | Dissolved |
| REPONO BIDCO LIMITED | 09846864 | 31/05/2018 | Dissolved |
| REPONO CM HOLDCO LIMITED | 09846907 | 31/05/2018 | Dissolved |
| REPONO HOLDCO 2 LIMITED | 09844805 | 31/05/2018 | Dissolved |
| REPONO INTERCO LIMITED | 09845638 | 31/05/2018 | Dissolved |
| REPONO MIDCO LIMITED | 09846187 | 31/05/2018 | Dissolved |
| SIGBAT A LIMITED | 11296779 | 31/05/2018 | Dissolved |
| SIGBAT B LIMITED | 11296838 | 31/05/2018 | Dissolved |
| SIGBAT C LIMITED | 11296850 | 31/05/2018 | Dissolved |
| SIGBAT D LIMITED | 11296843 | 31/05/2018 | Dissolved |
| SIGBAT E LIMITED | 11296931 | 31/05/2018 | Dissolved |
| SIGBAT F LIMITED | 11296974 | 31/05/2018 | Dissolved |
| SIGBAT G LIMITED | 11297020 | 31/05/2018 | Dissolved |
| SIGBAT H LIMITED | 11297060 | 31/05/2018 | Dissolved |
| SIGBAT I LIMITED | 11297058 | 31/05/2018 | Dissolved |
| SIGBAT J LIMITED | 11297086 | 31/05/2018 | Dissolved |
| SIGBAT K LIMITED | 11297079 | 31/05/2018 | Dissolved |
| SIGBAT L LIMITED | 11297092 | 31/05/2018 | Dissolved |
| UK DYNAMIC RESERVE LIMITED | 10890652 | 31/05/2018 | Dissolved |
| UK FLEXIBLE RESERVE LIMITED | 10896260 | 31/05/2018 | Dissolved |
| UK POWER RESERVE (LTC) LIMITED | 07767865 | 31/05/2018 | Dissolved |
| UK POWER RESERVE (SOUTH CORNELLY) LIMITED | 07923609 | 31/05/2018 | Dissolved |
| UK POWER RESERVE (ST HELENS) LIMITED | 07677934 | 31/05/2018 | Dissolved |
| UK POWER RESERVE (STYAL ROAD) LIMITED | 07692343 | 31/05/2018 | Dissolved |
| UK STRATEGIC RESERVE LIMITED | 09588656 | 31/05/2018 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GB DEVELOPERS LIMITED | 04480584 | 31/05/2018 | 14/06/2021 | Silver |
| MERSEYSIDE ENERGY RECOVERY HOLDINGS LTD | 07983197 | 05/02/2016 | 21/09/2021 | Silver |
| MERSEYSIDE ENERGY RECOVERY LTD | 08033025 | 05/02/2016 | 21/09/2021 | Silver |
| REPONO HOLDCO 1 LIMITED | 09844502 | 01/12/2019 | 14/06/2021 | Bronze |
| SEMBCORP UTILITIES (UK) LIMITED | 04636301 | 05/02/2016 | 14/06/2021 | Silver |
| SEMBCORP UTILITIES TEESSIDE PENSION TRUSTEES LIMITED | 04731158 | 01/07/2021 | 31/07/2021 | Not Trading |
| STABILITY ISLAND PROJECTS LIMITED | 13429231 | 31/05/2021 | 14/06/2021 | Dissolved |
| STALLINGBOROUGH PROPERTIES LIMITED | 06809430 | 31/05/2018 | 14/06/2021 | Silver |
| TTI REALISATIONS 2019 LIMITED | 02360140 | 27/11/2018 | 21/08/2019 | Dissolved |
| UK CAPACITY RESERVE LIMITED | 09152381 | 31/05/2018 | 14/06/2021 | Gold |
| UK ENERGY RESERVE LIMITED | 10260309 | 31/05/2018 | 14/06/2021 | Bronze |
| UK POWER RESERVE (ASFORDBY) LIMITED | 07618247 | 31/05/2018 | 14/06/2021 | One Red Flag |
| UK POWER RESERVE (MONCKTON ROAD) LIMITED | 07441588 | 31/05/2018 | 14/06/2021 | Amber |
| UK POWER RESERVE (TRUMFLEET) LTD | 07004203 | 31/05/2018 | 14/06/2021 | Bronze |
| UK POWER RESERVE LIMITED | 07385282 | 31/05/2018 | 14/06/2021 | Bronze |
| UK UTILITY RESERVE LIMITED | 11008814 | 31/05/2018 | 14/06/2021 | Silver |
| WILTON ENERGY LIMITED | 04557531 | 05/02/2016 | 14/06/2021 | Bronze |