| Company | Timeline | Status | |
| British Overseas Railways Historical Trust(The) Director • Unreported | 9 Nov 2019←6 Years→Current | Active | |
| Larkwall Limited Secretary • Unreported | 1 Jan 1999←6 Years→23 Nov 2005 | Active | |
| Christian Engineers In Development Director • Chartered Engineer | 15 Mar 1996←15 Years→18 Jun 2011 | Active | |
