| Company | Timeline | Status | |
| Hartree Solaris Limited Director • Company Director | 27 Aug 2025←3 Months→Current | Active | |
| Circtec Ltd Director • Director | 11 Feb 2022←1 Year 7 Months→25 Sep 2023 | Active | |
| Hartree Partners Employee Holdings Limited Director • Company Director | 15 Oct 2021←3 Years→4 Jul 2025 | Active | |
| Hartree International Holdings Limited Director • Company Director | 26 Sep 2019←5 Years→4 Jul 2025 | Active | |
| Hartree Partners Consulting (UK) Limited Director • Company Director | 10 Jan 2018←7 Years→4 Jul 2025 | Active | |
| Hartree Partners Commodities U.K. Limited Director • Company Director | 21 Dec 2012←12 Years→4 Jul 2025 | Active | |
J&H Hanseatic Trading Limited Liability Partnership Designated LLP Member • Unreported | 1 Sep 2008←6 Years→3 Feb 2015 | Dissolved | |
| Winwood Residents Limited Director • Managing Director | 21 Nov 2007←12 Years→3 Jan 2020 | Active | |
| Hartree Partners Advisory Services U.K. Limited Director • Company Director | 5 Nov 2001←24 Years→Current | Active | |
| Hartree Partners Power & Gas Company (UK) Limited Director • Company Director | 5 Nov 2001←23 Years→4 Jul 2025 | Active | |
