| Company | Timeline | Status | |
| Oxford Archaeology Limited Director • Retired | 1 Apr 1995←10 Years→11 May 2005 | Active | |
| Alder Investment Management Limited Director • Chartered Accountant | 16 Jul 1992←4 Months→18 Nov 1992 | Active | |
| Alder Asset Management Limited Director • Chartered Accountant | 16 Jul 1992←4 Months→18 Nov 1992 | Active | |
| Stowell Park Estate Limited Director • Chartered Accountant | 19 Apr 1992←10 Months→19 Feb 1993 | Active | |
