| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BASILDON POWER LIMITED | 09144975 | 01/12/2017 | One Red Flag |
| BEAUFORT POWER LTD | 09111808 | 05/10/2017 | One Red Flag |
| BRECON POWER LTD | 09113303 | 05/10/2017 | One Red Flag |
| CILFYNYDD GRID SERVICES LIMITED | 13396965 | 19/01/2024 | One Red Flag |
| CLEVE HILL SOLAR PARK HOLD CO LIMITED | 15616009 | 04/04/2024 | Amber |
| CLEVE HILL SOLAR PARK LIMITED | 08904850 | 01/10/2021 | Amber |
| DISTRIBUTED POWER HOLDINGS LIMITED | 12011629 | 17/04/2020 | Silver |
| FLEXIBLEGRIDPOWER3 LTD | 10684284 | 06/09/2018 | One Red Flag |
| FLEXITRICITY LIMITED | SC263298 | 09/09/2020 | One Red Flag |
| FULSCOT POWER LTD | 11969511 | 24/02/2021 | One Red Flag |
| GAS POWER DEVELOPMENTS LIMITED | 10825590 | 21/06/2019 | One Red Flag |
| GCP GENERATION LTD | 10507519 | 21/06/2019 | One Red Flag |
| GRESLEY POWER LTD | 11894362 | 20/03/2020 | One Red Flag |
| GREYS HALL POWER LIMITED | 10290270 | 03/02/2020 | One Red Flag |
| HABITAT ENERGY LIMITED | 10923911 | 30/11/2021 | One Red Flag |
| HARWORTH POWER (GENERATION) LIMITED | 07896679 | 21/09/2020 | Silver |
| ITCHEN POWER LIMITED | 09146100 | 01/12/2017 | One Red Flag |
| KOALA ENERGY CAPITAL LLP | OC382326 | 11/02/2013 | Bronze |
| LIME KILNS ENERGY CENTRE LTD | 11417697 | 04/07/2019 | One Red Flag |
| NET ZERO GRID SERVICES LIMITED | 15112685 | 04/09/2023 | Bronze |
| NET ZERO UK HOLDINGS LIMITED | 15112733 | 04/09/2023 | Bronze |
| NH EASEMENT LTD | 11388077 | 21/06/2019 | One Red Flag |
| POINT ENERGY EM LIMITED | SC609061 | 10/12/2020 | One Red Flag |
| POWER INITIATIVES (2) LIMITED | 11656450 | 24/06/2019 | One Red Flag |
| PRIVATE ENERGY PARTNERS (UK) LTD | 12673927 | 16/06/2020 | Bronze |
| QUINBROOK INFRASTRUCTURE PARTNERS LIMITED | 09741971 | 03/04/2017 | Bronze |
| RED ROSE INFRASTRUCTURE LIMITED | 07686173 | 21/09/2020 | One Red Flag |
| RELIABLE GENERATION LTD | 10507680 | 06/09/2018 | One Red Flag |
| RENEWABLE & DECARBONISATION HOLDINGS LIMITED | 15858186 | 25/07/2024 | Amber |
| 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 | One Red Flag |
| SCARLET TRIANGLES LIMITED | 11267659 | 21/06/2019 | One Red Flag |
| SELLINDGE GRID SERVICES LIMITED | 12395277 | 14/09/2023 | Amber |
| 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 |
| TEFFONT BESS LIMITED | 14303603 | 18/08/2022 | One Red Flag |
| TGC EMERALD LIMITED | 09647923 | 21/06/2019 | One Red Flag |
| UK GRID SERVICES LIMITED | 14740975 | 20/03/2023 | Bronze |
| VELOX POWER LIMITED | 10967590 | 18/09/2017 | 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 | Silver |
| WEDNESBURY POWER LTD | 09120513 | 05/10/2017 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLEAN ENERGY & INFRASTRUCTURE UK POWER VENTURES LIMITED | 09143504 | 23/07/2014 | 05/05/2015 | Dissolved |
| CLEAN ENERGY AND INFRASTRUCTURE 1 LIMITED | 08393112 | 07/02/2013 | 05/05/2015 | Dissolved |
| CLEAN ENERGY AND INFRASTRUCTURE UK LIMITED | 08354707 | 10/01/2013 | 05/05/2015 | Silver |
| CLEAN ENERGY AND INFRASTRUCTURE UK WIND LIMITED | 09042665 | 15/05/2014 | 05/05/2015 | Amber |
| DAINTREE WIND FARM LIMITED | 07775855 | 10/03/2015 | 05/05/2015 | Silver |
| DUNMORE WIND FARM LTD | NI606307 | 22/01/2013 | 05/05/2015 | Silver |
| FALKIRK TOD HILL WIND LIMITED | 07414469 | 29/05/2013 | 05/05/2015 | Silver |
| GARLENICK WIND FARM LIMITED | 07775824 | 05/02/2015 | 05/05/2015 | Silver |
| HARTHILL WIND LIMITED | 07706965 | 29/05/2013 | 05/05/2015 | Amber |
| QUINBROOK INFRASTRUCTURE PARTNERS LIMITED | 09741971 | 20/08/2015 | 13/03/2017 | Bronze |
| RED ROSE INFRASTRUCTURE BIOGAS 2 LIMITED | 09095902 | 20/06/2014 | 05/05/2015 | Dissolved |
| RED ROSE INFRASTRUCTURE BIOGAS LIMITED | 08704867 | 25/09/2013 | 05/05/2015 | Dissolved |
| YSGELLOG WIND FARM LIMITED | 07775816 | 15/10/2013 | 05/05/2015 | Silver |