| Company | Timeline | Status | |
| Mosquito Aircraft Museum Limited Director • Retired | 11 Jun 2015←8 Years→20 Nov 2023 | Active | |
| De Havilland Aircraft Museum Trust Limited Director • Retired | 11 Jun 2015←8 Years→20 Nov 2023 | Active | |
Furrs (Barracuda) Limited Director • Director | 4 Apr 2000←13 Years→18 Feb 2014 | Dissolved | |
| H.F.Sheffield Limited Director • Director | 4 Apr 2000←13 Years→6 Sep 2013 | Active | |
