| Company | Timeline | Status | |
| BP Alternative Energy Holdings Limited Director • Commercial Manager | 1 Aug 2003←4 Months→1 Dec 2003 | Dissolved | |
| BP Technology Ventures Limited Director • Commercial Manager | 1 Aug 2003←4 Months→1 Dec 2003 | Active | |
| Physalia Limited Director • Consultant Biologist | 18 Feb 1991←32 Years→22 Feb 2023 | Dissolved | |
