| Company | Timeline | Status | |
| Peirce-Field Properties LLP Designated LLP Member • Unreported | 2 May 2017←8 Years→Current | Active | |
| MDRF Holdings Limited Director • Scientist | 13 Jun 2012←12 Years→16 Mar 2025 | Dissolved | |
| Ecospan Environmental Limited Director • Scientist | 30 May 2006←15 Years→18 Feb 2022 | Active | |
