| Company | Timeline | Status | |
| The Green Alliance Trust Director • Consultant | 28 Sep 2016←9 Years→Current | Active | |
| The Green Alliance Director • Consultant | 28 Sep 2016←7 Years→19 Mar 2024 | Dissolved | |
| The Green Alliance Trust Director • Consultant | 28 Sep 2016←8 Years→16 Sep 2025 | Active | |
| Smith Trustee Company Limited(The) Director • Unreported | 25 Oct 2010←15 Years→Current | Active | |
| The Hollycombe Working Steam Museum Director • Unreported | 28 Jun 2000←25 Years→Current | Active | |
| Pesticide Action Network UK Director • Researcher | 8 Mar 1992←16 Years→4 Dec 2008 | Active | |
| Earth Resources Research Director • Researcher | 21 Dec 1991←29 Years→16 Mar 2021 | Dissolved | |
