| Company | Timeline | Status | |
| Reaction Designs Limited Director • Engineer | 18 Jan 2002←22 Years→23 Apr 2024 | Dissolved | |
| Reaction Designs Limited Secretary • Engineer | 18 Jan 2002←22 Years→23 Apr 2024 | Dissolved | |
| Frazer-Nash Consultancy Limited Director • Engineer | 1 Jan 2002←8 Years→1 Jul 2010 | Active | |
