| Company | Timeline | Status | |
| Calmac Ferries Limited Director • Director | 3 Nov 2025←2 Months→Current | Active | |
| David Macbrayne Limited Director • Director | 3 Nov 2025←2 Months→Current | Active | |
| Techtalktype Ltd Director • It Consultant | 11 Jul 2024←1 Year 6 Months→Current | Active | |
Stigmergist Ltd Director • It Development Consultant | 19 Jan 2011←4 Years→4 Sep 2015 | Dissolved | |
| E2x Limited Director • It Consultant | 24 Jul 2007←2 Years 11 Months→29 Jun 2010 | Active | |
