| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ANHAKE LTD | 11086700 | 28/11/2017 | One Red Flag |
| BASILDON POWER LIMITED | 09144975 | 01/12/2017 | Two Red Flags |
| BATHGATE ENERGY STORAGE LIMITED | 12079991 | 16/03/2022 | One Red Flag |
| BEAUFORT POWER LTD | 09111808 | 05/10/2017 | One Red Flag |
| BRECON POWER LTD | 09113303 | 05/10/2017 | Two Red Flags |
| EOS INVESTCO (INTERCO 1) LTD | 13904266 | 16/03/2022 | One Red Flag |
| EOS INVESTCO (INTERCO 2) LTD | 13904213 | 16/03/2022 | Silver |
| EOS INVESTCO (INTERCO 3) LTD | 13904236 | 16/03/2022 | Bronze |
| EOS INVESTCO LTD | 13893559 | 16/03/2022 | One Red Flag |
| FLEXIBLEGRIDPOWER3 LTD | 10684284 | 06/09/2018 | One Red Flag |
| FLEXITRICITY LIMITED | SC263298 | 09/09/2020 | One Red Flag |
| FULSCOT POWER LTD | 11969511 | 17/02/2021 | One Red Flag |
| GAS POWER DEVELOPMENTS LIMITED | 10825590 | 21/06/2019 | One Red Flag |
| GCP GENERATION LTD | 10507519 | 21/06/2019 | Two Red Flags |
| GRESLEY POWER LTD | 11894362 | 20/03/2020 | One Red Flag |
| GREYS HALL POWER LIMITED | 10290270 | 03/02/2020 | Two Red Flags |
| HARWORTH POWER (GENERATION) LIMITED | 07896679 | 21/09/2020 | Bronze |
| ITCHEN POWER LIMITED | 09146100 | 01/12/2017 | Two Red Flags |
| LIME KILNS ENERGY CENTRE LTD | 11417697 | 04/07/2019 | Two Red Flags |
| NEWARK ENERGY STORAGE LTD | 11400329 | 16/03/2022 | Amber |
| NH EASEMENT LTD | 11388077 | 21/06/2019 | Amber |
| POINT ENERGY EM LIMITED | SC609061 | 10/12/2020 | One Red Flag |
| POWER INITIATIVES (2) LIMITED | 11656450 | 24/06/2019 | One Red Flag |
| RASSAU GRID SERVICES LIMITED | 10211708 | 21/05/2020 | Bronze |
| RED ROSE INFRASTRUCTURE LIMITED | 07686173 | 21/09/2020 | One Red Flag |
| RELIABLE GENERATION LTD | 10507680 | 06/09/2018 | One Red Flag |
| RENEWABLE AND GRID SERVICES LIMITED | 13250883 | 08/03/2021 | One Red Flag |
| SANDWELL POWER 1 LIMITED | 09732287 | 15/01/2018 | Dissolved |
| SANDWELL POWER LTD | 09854164 | 05/10/2017 | Two Red Flags |
| SCARLET TRIANGLES LIMITED | 11267659 | 21/06/2019 | One Red Flag |
| SMETHWICK POWER LIMITED | 09145011 | 01/12/2017 | One Red Flag |
| SPECTRUMRESERVE4 LTD | 10726547 | 07/08/2020 | One Red Flag |
| SPECTRUMRESERVE5 LTD | 10726784 | 06/09/2018 | One Red Flag |
| TGC EMERALD LIMITED | 09647923 | 21/06/2019 | One Red Flag |
| USKMOUTH ENERGY STORAGE LIMITED | 13989624 | 23/05/2022 | One Red Flag |
| VELOX POWER SERVICES (2) LIMITED | 07712259 | 21/09/2020 | One Red Flag |
| VELOX POWER SERVICES LIMITED | 11216216 | 21/02/2018 | One Red Flag |
| VIRIDIS ENERGY (NORGEN) LIMITED | 03059500 | 21/09/2020 | Bronze |
| WEDNESBURY POWER LTD | 09120513 | 05/10/2017 | Two Red Flags |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|