| Company | Timeline | Status | |
| Nanoco Life Sciences Limited Director • Consultant Physician | 23 Jun 1999←1 Year 3 Months→1 Oct 2000 | Active | |
| Ipsen Biopharm Limited Director • Company Executive | 12 Dec 1994←3 Years→1 Jan 1998 | Active | |
| Pothold Limited Director • Chief Executive | 16 Mar 1994←3 Years→1 Jan 1998 | Active | |
