| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ATTFIELDS POWER LIMITED | 11354689 | 10/05/2018 | Dissolved |
| EXCALIBUR POWER LIMITED | 12636020 | 30/05/2020 | Amber |
| HARTREE LAND LIMITED | 10982796 | 26/09/2017 | Bronze |
| HARTREE PARTNERS (UK) LIMITED | 03446989 | 23/02/2024 | Silver |
| HARTREE PARTNERS CAPITAL MANAGEMENT (UK) LIMITED | 10579902 | 24/01/2017 | Not Trading |
| HARTREE PARTNERS CONSULTING (UK) LIMITED | 11143145 | 02/09/2024 | One Red Flag |
| HARTREE PARTNERS LNG 1 LIMITED | 10982746 | 26/09/2017 | Not Trading |
| HARTREE PARTNERS POWER & GAS COMPANY (UK) LIMITED | 04308186 | 05/11/2001 | Bronze |
| HARTREE PARTNERS POWER HOLDINGS (UK) LIMITED | 10013510 | 18/02/2016 | Bronze |
| HARTREE PARTNERS SECURITIES (UK) LIMITED | 10792718 | 26/05/2017 | Silver |
| HARTREE PARTNERS SUPPLY (UK) LIMITED | 09283816 | 08/02/2016 | Silver |
| HARTREE PEAKING (HOLDINGS) LIMITED | 10305664 | 01/08/2016 | Amber |
| HARTREE PEAKING 2 (HOLDINGS) LIMITED | 10335196 | 18/08/2016 | One Red Flag |
| HARTREE SOLUTIONS (UK) LIMITED | 10013025 | 18/02/2016 | One Red Flag |
| HARTREE SOLUTIONS ASSETS LIMITED | 12635934 | 30/05/2020 | Not Trading |
| HARTREE SOLUTIONS LIMITED | 10982714 | 26/09/2017 | Not Trading |
| HAVERTON HILL POWER LIMITED | 11354024 | 10/05/2018 | Bronze |
| HILCOTE POWER LIMITED | 10279808 | 19/07/2018 | Dissolved |
| KENDAL ROAD POWER LIMITED | 11354529 | 10/05/2018 | Dissolved |
| KINGSMOOR POWER LIMITED | 10012989 | 18/02/2016 | Silver |
| KWB POWER LIMITED | 11354543 | 10/05/2018 | Bronze |
| MERLIN PARK POWER LIMITED | 10230626 | 22/09/2017 | Dissolved |
| PETERLEE POWER LIMITED | 12634856 | 30/05/2020 | Bronze |
| POWERTREE (FOXWOOD ROAD) LIMITED | 10067671 | 20/12/2016 | Bronze |
| POWERTREE (HOLDINGS) LIMITED | 10066723 | 20/12/2016 | Silver |
| POWERTREE (SIDINGS ROAD) LIMITED | 10067700 | 20/12/2016 | Bronze |
| POWERTREE (TAYLOR LANE) LIMITED | 10067698 | 20/12/2016 | Bronze |
| SUNDERLAND POWER LIMITED | 12634842 | 30/05/2020 | Bronze |
| VERTREE 2551 LIMITED | 15141285 | 15/09/2023 | Bronze |
| VERTREE 2868 LIMITED | 15124891 | 08/09/2023 | Bronze |
| VERTREE ADVISORY SERVICES LIMITED | 15227232 | 23/10/2023 | Amber |
| VERTREE ENVIRONMENTAL DEVELOPMENT LIMITED | 12531544 | 24/03/2020 | One Red Flag |
| VERTREE HOLDINGS LIMITED | 15221338 | 19/10/2023 | Amber |
| VERTREE PARTNERS LIMITED | 12449855 | 07/02/2020 | Bronze |
| VERTREE VENTURES LIMITED | 15227273 | 23/10/2023 | Amber |
| WGC ENERGY CENTRE LIMITED | 12641750 | 03/06/2020 | Not Trading |
| WINCHAM LANE POWER LIMITED | 10343839 | 10/07/2017 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GEOTREE LIMITED | 13575918 | 16/12/2021 | 12/02/2024 | Strike Off |
| HARTREE PARTNERS ADVISORY SERVICES U.K. LIMITED | 04308190 | 05/11/2001 | 21/03/2023 | Bronze |
| HIGHLAND WIND FARM LIMITED | 13299694 | 29/03/2021 | 20/12/2023 | One Red Flag |