| Company | Timeline | Status | |
| The Society For Nautical Research Director • Naval Architect | 1 Jul 2001←4 Years→30 Jun 2005 | Active | |
| 9 Park Lane (Bath) Limited Director • Consultant | 24 Jul 1991←16 Years→15 Apr 2008 | Active | |
| 9 Park Lane (Bath) Limited Director • Unreported | 1 Jan 1970←38 Years→15 Apr 2008 | Active | |
