| Company | Timeline | Status | |
| Rolls-Royce Fuel Cell Systems Limited Director • Director - Research & Technology | 20 Feb 2015←1 Year 1 Month→31 Mar 2016 | Active | |
| National Centre For Universities And Business Director • Engineer | 12 Dec 2013←5 Years→4 Apr 2019 | Active | |
| Tidal Generation Limited Director • Director- Research & Technology | 2 Apr 2009←1 Year 12 Months→31 Mar 2011 | Dissolved | |
| Safyrr Propulsion Limited Director • Director | 5 Dec 2005←5 Years→3 Oct 2011 | Active | |
| Safyrr Propulsion Limited Director • Director | 9 May 2001←3 Years→11 Jun 2004 | Active | |
