| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ATTFIELDS POWER LIMITED | 11354689 | 10/05/2018 | Dissolved |
| CURO CHARLOTTE HOUSE LLP | OC368592 | 04/04/2013 | Bronze |
| CURO QUEEN STREET LLP | OC353588 | 04/04/2013 | Dissolved |
| HANSEATIC TRADING LIMITED | 07253937 | 14/05/2010 | Dissolved |
| HARTREE INTERNATIONAL HOLDINGS LIMITED | 12229505 | 26/09/2019 | Bronze |
| HARTREE PARTNERS ADVISORY SERVICES U.K. LIMITED | 04308190 | 05/11/2001 | Bronze |
| HARTREE PARTNERS CAPITAL MANAGEMENT (UK) LIMITED | 10579902 | 24/01/2017 | Not Trading |
| HARTREE PARTNERS COMMODITIES U.K. LIMITED | 08340079 | 21/12/2012 | Gold |
| HARTREE PARTNERS EMPLOYEE HOLDINGS LIMITED | 13682240 | 15/10/2021 | Bronze |
| HARTREE PARTNERS LNG 1 LIMITED | 10982746 | 26/09/2017 | Not Trading |
| HILCOTE POWER LIMITED | 10279808 | 19/07/2018 | Dissolved |
| J&H HANSEATIC TRADING LIMITED LIABILITY PARTNERSHIP | OC339795 | 01/09/2008 | Dissolved |
| KENDAL ROAD POWER LIMITED | 11354529 | 10/05/2018 | Dissolved |
| MERLIN PARK POWER LIMITED | 10230626 | 22/09/2017 | Dissolved |
| WINCHAM LANE POWER LIMITED | 10343839 | 10/07/2017 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| EXCALIBUR POWER LIMITED | 12636020 | 30/05/2020 | 08/07/2024 | Amber |
| FUTURE FUELS NO.1 LLP | OC334323 | 30/09/2010 | 07/12/2020 | One Red Flag |
| HARTREE LAND LIMITED | 10982796 | 26/09/2017 | 08/07/2024 | Bronze |
| HARTREE METALLIA (UK) LIMITED | 12798627 | 07/08/2020 | 08/07/2024 | Bronze |
| HARTREE MI UK LIMITED | 15612318 | 03/04/2024 | 28/06/2024 | Amber |
| HARTREE PARTNERS (UK) LIMITED | 03446989 | 12/03/1998 | 15/10/2024 | Bronze |
| HARTREE PARTNERS CONSULTING (UK) LIMITED | 11143145 | 10/01/2018 | 02/09/2024 | Bronze |
| HARTREE PARTNERS POWER & GAS COMPANY (UK) LIMITED | 04308186 | 05/11/2001 | 15/10/2024 | Bronze |
| HARTREE PARTNERS POWER HOLDINGS (UK) LIMITED | 10013510 | 18/02/2016 | 08/07/2024 | Bronze |
| HARTREE PARTNERS SECURITIES (UK) LIMITED | 10792718 | 26/05/2017 | 08/07/2024 | Gold |
| HARTREE PARTNERS SUPPLY (UK) LIMITED | 09283816 | 08/02/2016 | 08/07/2024 | Silver |
| HARTREE PEAKING (HOLDINGS) LIMITED | 10305664 | 01/08/2016 | 08/07/2024 | One Red Flag |
| HARTREE PEAKING 2 (HOLDINGS) LIMITED | 10335196 | 18/08/2016 | 08/07/2024 | One Red Flag |
| HARTREE SOLUTIONS (UK) LIMITED | 10013025 | 18/02/2016 | 08/07/2024 | One Red Flag |
| HARTREE SOLUTIONS ASSETS LIMITED | 12635934 | 30/05/2020 | 08/07/2024 | Bronze |
| HARTREE SOLUTIONS LIMITED | 10982714 | 26/09/2017 | 08/07/2024 | Not Trading |
| HAVERTON HILL POWER LIMITED | 11354024 | 10/05/2018 | 08/07/2024 | One Red Flag |
| KINGSMOOR POWER LIMITED | 10012989 | 18/02/2016 | 08/07/2024 | Silver |
| KWB POWER LIMITED | 11354543 | 10/05/2018 | 08/07/2024 | Silver |
| PETERLEE POWER LIMITED | 12634856 | 30/05/2020 | 08/07/2024 | Bronze |
| POWERTREE (FOXWOOD ROAD) LIMITED | 10067671 | 20/12/2016 | 08/07/2024 | Bronze |
| POWERTREE (HOLDINGS) LIMITED | 10066723 | 20/12/2016 | 08/07/2024 | Silver |
| POWERTREE (SIDINGS ROAD) LIMITED | 10067700 | 20/12/2016 | 08/07/2024 | Bronze |
| POWERTREE (TAYLOR LANE) LIMITED | 10067698 | 20/12/2016 | 08/07/2024 | Bronze |
| SUNDERLAND POWER LIMITED | 12634842 | 30/05/2020 | 08/07/2024 | One Red Flag |
| VERTREE ENVIRONMENTAL DEVELOPMENT LIMITED | 12531544 | 07/07/2021 | 11/04/2023 | One Red Flag |
| VERTREE PARTNERS LIMITED | 12449855 | 07/07/2021 | 11/04/2023 | Bronze |
| WGC ENERGY CENTRE LIMITED | 12641750 | 03/06/2020 | 08/07/2024 | Not Trading |