| Company | Timeline | Status | |
Mast Commercial Limited Director • Company Director | 10 Dec 2012←3 Years→11 Jan 2016 | Dissolved | |
| Maritime Archaeology Sea Trust Director • Company Director | 10 Dec 2012←3 Years→30 Aug 2016 | Active | |
| Royal Yacht Enterprises Limited Director • Company Director | 15 Jun 2005←20 Years→Current | Active | |
| Portsmouth Naval Base Property Company Limited Director • Retired | 14 Aug 2001←20 Years→22 Jul 2022 | Active | |
| The Royal Yacht Britannia Trust Director • Company Director | 25 Jun 1999←26 Years→Current | Active | |
| Scottish Seabird Centre Trading Limited Director • Company Director | 20 Feb 1998←14 Years→11 Jul 2012 | Active | |
| Scottish Seabird Centre Director • Coy Director | 30 Jun 1997←15 Years→11 Jul 2012 | Active | |
| Portsmouth Historic Quarter Trust Director • Company Chairman | 13 Jan 1997←25 Years→22 Jul 2022 | Active | |
| Northlink Ferries Limited Director • Company Director | 1 Aug 1996←2 Years 12 Months→31 Jul 1999 | Active | |
| David Macbrayne Limited Director • Company Director | 1 Aug 1996←2 Years 12 Months→31 Jul 1999 | Active | |
