| Company | Timeline | Status | |
| C Ten Ltd Director • Engineer | 24 Jan 2013←12 Years→Current | Active | |
| Calson Ltd Director • Engineer | 17 Aug 2010←15 Years→Current | Active | |
| Enterpen Engineering Ltd Director • Engineer | 10 Feb 2010←15 Years→Current | Active | |
Fuel Cells (Scotland) Ltd Director • Operations Director | 23 Oct 2007←8 Months→15 Jul 2008 | Dissolved | |
