| Company | Timeline | Status | |
Stuart J Gray Limited Director • Sales Agent | 6 Jun 2014←4 Years→10 Jul 2018 | Dissolved | |
| Castle Firebrick Co Ltd Director • Sales Agent | 12 Dec 2012←1 Year 4 Months→17 Apr 2014 | Dissolved | |
National Steam Car Association Limited Director • Business Consultant | 16 Jul 2009←10 Years→31 Jul 2019 | Dissolved | |
| The Steam Car Club Of Great Britain Limited Director • Business Consultant | 7 Feb 2009←2 Months→5 May 2009 | Dissolved | |
| National Traction Engine Trust Director • Management Consultant | 15 Nov 2008←8 Years→19 Nov 2016 | Active | |
