| Company | Timeline | Status | |
| Civil Engineering Contractors Association (Scotland) Director • Director | 22 Feb 2005←7 Years→23 Feb 2012 | Active | |
| George Leslie Limited Director • Chartered Civil Engineer | 6 Oct 2003←7 Years→29 Jul 2011 | Active | |
| Ashmoon Limited Director • Chartered Civil Engineer | 5 Jun 1995←17 Years→26 Mar 2013 | Active | |
| George Leslie Plant Limited Director • Chartered Civil Engineer | 20 Oct 1988←23 Years→18 Dec 2011 | Active | |
