| Company | Timeline | Status | |
| Rhodes House Limited Director • Unreported | 7 Nov 2022←3 Years→Current | Active | |
Carlstrand Associates Limited Director • Retired Chartered Engineer | 1 Oct 2011←5 Years→18 Apr 2017 | Dissolved | |
| Berkshire Aviation Services Limited Director • Chartered Engineer | 20 Sep 1997←3 Years→20 Oct 2000 | Active | |
