| Company | Timeline | Status | |
| G & C Holdings Limited Director • Engineer | 31 Mar 2009←7 Years→8 Dec 2016 | Dissolved | |
Discord Limited Director • Engineer | 1 Feb 2009←4 Years→1 Feb 2013 | Dissolved | |
| F & G Trading Limited Director • Engineer | 1 Feb 2009←5 Years→1 Dec 2014 | Active | |
Mechanical Trading (UK) Limited Director • Engineer | 1 Feb 2009←5 Years→15 Jul 2014 | Dissolved | |
| William Riddell & Sons Limited Director • Engineer | 1 Oct 2008←4 Years→1 Feb 2013 | Active | |
| Emea Energy Ventures Management Limited Director • Unreported | 20 Jun 2006←3 Years→29 Mar 2010 | Active | |
| Ely Hamilton Limited Director • Engineer | 21 May 2004←4 Years→28 Jan 2009 | Active | |
| SM International Limited Director • Engineer | 21 May 2004←5 Years→29 Mar 2010 | Dissolved | |
