| Company | Timeline | Status | |
Assured Solutions G.B. Limited Director • Director And Civil Engineer | 18 Sep 2009←4 Years→15 Aug 2014 | Dissolved | |
| Benan Limited Director • Civil Engineer | 23 May 2007←12 Years→8 Nov 2019 | Active | |
| Airport Driving Range Company Limited Director • Company Director | 11 Aug 2006←2 Years 7 Months→1 Apr 2009 | Active | |
| Glasgow Prestwick Airport Limited Director • Director | 16 Dec 2005←3 Years→1 Apr 2009 | Active | |
| Prestwick Airport Limited Director • Director | 16 Dec 2005←3 Years→1 Apr 2009 | Active | |
| Halcion Limited Director • Director And Civil Engineer | 25 Jun 2004←15 Years→8 Nov 2019 | Active | |
Infratil Airports Europe Limited Director • Comany Director | 23 Mar 2004←1 Year 8 Months→15 Dec 2005 | Dissolved | |
Barr Investments Limited Director • None | 11 Apr 2002←1 Year 1 Month→23 May 2003 | Dissolved | |
| Columba 1400 Director • Director | 1 Dec 2001←9 Years→1 Dec 2010 | Active | |
Barr Construction Support Limited Director • Company Director | 25 Apr 2001←2 Years→23 May 2003 | Dissolved | |
