| Company | Timeline | Status | |
| Rothamsted Research Holdings Limited Director • Retired | 1 Jul 1998←1 Year 1 Month→27 Aug 1999 | Active | |
| BTG International Limited Director • Company Director | 14 Nov 1992←6 Years→23 Jul 1999 | Active | |
| BTG Limited Director • Company Director | 31 Mar 1992←7 Years→23 Jul 1999 | Active | |
| Rothamsted Research Limited Director • Consultant In Agricultural Research | 30 Jul 1991←7 Years→2 Jul 1999 | Active | |
