| Company | Timeline | Status | |
| Northlink Ferries Limited Director • Director | 26 Nov 2012←3 Years→31 Dec 2015 | Active | |
| David Macbrayne HR (UK) Limited Director • Director | 17 Oct 2012←3 Years→31 Dec 2015 | Active | |
| Argyll Ferries Limited Director • Director | 3 Oct 2012←3 Months→28 Jan 2013 | Dissolved | |
| Adetrio Limited Director • Unreported | 1 Mar 2012←13 Years→Current | Active | |
| Genii Engineering & Technology Training Limited Director • Consultant | 15 Sep 2011←4 Years→30 Jun 2016 | Active | |
| Nucleus Training Limited Director • Director | 30 Mar 2011←5 Years→30 Jun 2016 | Dissolved | |
| Calmac Ferries Limited Director • Company Director | 28 Oct 2009←6 Years→31 Dec 2015 | Active | |
| Northlink Ferries Limited Director • Unreported | 28 Oct 2009←1 Year 7 Months→27 May 2011 | Active | |
| David Macbrayne Limited Director • Company Director | 1 Oct 2009←6 Years→31 Dec 2015 | Active | |
| Competence Matters Limited Director • Non Executive Director | 15 Jun 2009←1 Year 10 Months→30 Apr 2011 | Active | |
