| Company | Timeline | Status | |
The British Empire And Commonwealth Museum Director • Publisher Retired | 14 Mar 2003←2 Years 3 Months→23 Jun 2005 | Dissolved | |
| Earthworks Trust Limited Director • Publisher | 18 Jan 2000←1 Year 1 Month→9 Mar 2001 | Active | |
Empire Museum Limited Director • Publisher | 31 Dec 1991←11 Years→24 Apr 2003 | Dissolved | |
