| Company | Timeline | Status | |
| Quarriers Director • Retired | 2 Feb 2009←4 Years→17 Jun 2013 | Active | |
Glasgow Metro LLP Non-designated LLP Member • Unreported | 10 Mar 2005←9 Years→27 Mar 2014 | Dissolved | |
| Scimco Limited Director • Civil Engineer | 14 Feb 1996←6 Years→7 Oct 2002 | Dissolved | |
| Babcock Rail Limited Director • Deputy Chief Executive | 14 Feb 1996←6 Years→7 Oct 2002 | Active | |
| First Engineering Holdings Limited Director • Deputy Chief Executive | 7 Apr 1995←7 Years→7 Oct 2002 | Dissolved | |
