| Role | Company | Country | Status | Date Range |
|---|---|---|---|---|
| Officer | HARTREE MI UK LIMITED | 🇬🇧United Kingdom | Active | 19/03/2026 – 28/06/2024 |
| Officer | HARTREE PARTNERS EMPLOYEE HOLDINGS LIMITED | 🇬🇧United Kingdom | Active | 23/03/2026 – 10/01/2025 |
| Officer | VERTREE PARTNERS LIMITED | 🇬🇧United Kingdom | Active | 06/04/2026 – 11/04/2023 |
| Officer | VERTREE ENVIRONMENTAL DEVELOPMENT LIMITED | 🇬🇧United Kingdom | Active | 07/04/2026 – 11/04/2023 |
| Officer | HARTREE METALLIA (UK) LIMITED | 🇬🇧United Kingdom | Active | 06/04/2026 – 08/07/2024 |
| Officer | WGC ENERGY CENTRE LIMITED | 🇬🇧United Kingdom | Active | 05/04/2026 – 08/07/2024 |
| Officer | PETERLEE POWER LIMITED | 🇬🇧United Kingdom | Active | 07/04/2026 – 08/07/2024 |
| Officer | SUNDERLAND POWER LIMITED | 🇬🇧United Kingdom | Active | 07/04/2026 – 08/07/2024 |
| Officer | EXCALIBUR POWER LIMITED | 🇬🇧United Kingdom | Active | 05/04/2026 – 08/07/2024 |
| Officer | HARTREE SOLUTIONS ASSETS LIMITED | 🇬🇧United Kingdom | Active | 07/04/2026 – 08/07/2024 |
| Officer | HARTREE INTERNATIONAL HOLDINGS LIMITED | 🇬🇧United Kingdom | Active | 03/03/2026 – 14/11/2025 |
| Officer | HILCOTE POWER LIMITED | 🇬🇧United Kingdom | Dissolved | 25/04/2026 – present |
| Officer | KWB POWER LIMITED | 🇬🇧United Kingdom | Active | 16/04/2026 – 08/07/2024 |
| Officer | ATTFIELDS POWER LIMITED | 🇬🇧United Kingdom | Dissolved | 16/04/2026 – present |
| Officer | HAVERTON HILL POWER LIMITED | 🇬🇧United Kingdom | Active | 16/04/2026 – 08/07/2024 |
| Officer | KENDAL ROAD POWER LIMITED | 🇬🇧United Kingdom | Dissolved | 16/04/2026 – present |
| Officer | HARTREE PARTNERS CONSULTING (UK) LIMITED | 🇬🇧United Kingdom | Active | 28/05/2026 – 02/09/2024 |
| Officer | HARTREE SOLUTIONS LIMITED | 🇬🇧United Kingdom | Active | 19/04/2026 – 08/07/2024 |
| Officer | HARTREE GLOBAL SERVICES HOLDINGS LIMITED | 🇬🇧United Kingdom | Active | 08/01/2026 – 10/01/2025 |
| Officer | HARTREE LAND LIMITED | 🇬🇧United Kingdom | Active | 19/04/2026 – 08/07/2024 |
| Officer | WINCHAM LANE POWER LIMITED | 🇬🇧United Kingdom | Dissolved | 24/04/2026 – present |
| Officer | HARTREE PARTNERS SECURITIES (UK) LIMITED | 🇬🇧United Kingdom | Active | 20/04/2026 – 08/07/2024 |
| Officer | HARTREE PARTNERS CAPITAL MANAGEMENT (UK) LIMITED | 🇬🇧United Kingdom | Active | 22/04/2026 – 10/01/2025 |
| Officer | POWERTREE (HOLDINGS) LIMITED | 🇬🇧United Kingdom | Active | 28/04/2026 – 08/07/2024 |
| Officer | POWERTREE (TAYLOR LANE) LIMITED | 🇬🇧United Kingdom | Active | 28/04/2026 – 08/07/2024 |
| Officer | POWERTREE (FOXWOOD ROAD) LIMITED | 🇬🇧United Kingdom | Active | 28/04/2026 – 08/07/2024 |
| Officer | HARTREE PEAKING 2 (HOLDINGS) LIMITED | 🇬🇧United Kingdom | Active | 24/04/2026 – 08/07/2024 |
| Officer | HARTREE PEAKING (HOLDINGS) LIMITED | 🇬🇧United Kingdom | Active | 24/04/2026 – 08/07/2024 |
| Officer | KINGSMOOR POWER LIMITED | 🇬🇧United Kingdom | Active | 28/04/2026 – 08/07/2024 |
| Officer | HARTREE PARTNERS SUPPLY (UK) LIMITED | 🇬🇧United Kingdom | Active | 08/05/2026 – 08/07/2024 |
| Officer | HARTREE PARTNERS COMMODITIES U.K. LIMITED | 🇬🇧United Kingdom | Active | 17/05/2026 – 15/01/2025 |
| Officer | HARTREE PARTNERS COMMODITIES U.K. LIMITED | 🇬🇧United Kingdom | Active | 17/05/2026 – 12/01/2016 |
| Officer | HANSEATIC TRADING LIMITED | 🇬🇧United Kingdom | Dissolved | 27/05/2026 – present |
| Officer | HARTREE PARTNERS ADVISORY SERVICES U.K. LIMITED | 🇬🇧United Kingdom | Active | 09/01/2026 – present |
14/11/2025
resigned
15/01/2025
resigned
10/07/2017
appointed