| 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  | |
