| Company | Timeline | Status | |
| Kilfillan Park (Management) Limited Director • Engineering Consultant | 11 Oct 2011←4 Years→31 Mar 2016 | Active | |
| De Havilland Aircraft Museum Trust Limited Director • Chartered Engineer | 16 Apr 2011←2 Years→27 Apr 2013 | Active | |
| Carapace Consulting Limited Director • Chartered Engineer | 17 Jan 2001←22 Years→9 Jan 2024 | Dissolved | |
| The Pepper Foundation Director • Chartered Chemical Engineer | 10 Mar 1993←5 Years→1 Oct 1998 | Active | |
