| Company | Timeline | Status | |
| Global Marine Systems Limited Director • Unreported | 5 Apr 2005←1 Year→30 Apr 2006 | Active | |
| Northstandard Limited Director • Managing Director | 17 Oct 1997←3 Years→2 Nov 2000 | Active | |
| Northlink Ferries Limited Director • Unreported | 1 Aug 1997←3 Years→24 Nov 2000 | Dissolved | |
| David Macbrayne Limited Director • Company Director | 1 Aug 1997←3 Years→24 Nov 2000 | Active | |
| Caledonian Maritime Assets Limited Director • Company Director | 1 Aug 1997←3 Years→24 Nov 2000 | Active | |
| Global Marine Systems Limited Director • Unreported | 16 Dec 1994←3 Months→17 Mar 1995 | Active | |
