| Company | Timeline | Status | |
| High Speed Rail Group Limited Director • Civil Engineer | 6 Oct 2014←11 Years→Current | Active | |
| Steer Davies & Gleave Limited Director • Civil Engineer | 7 Oct 2005←17 Years→10 Nov 2022 | Active | |
| Greengauge 21 Director • Civil Engineer | 12 Sep 2005←20 Years→Current | Active | |
