| Company | Timeline | Status | |
| Scottish Water Business Stream Holdings Limited Director • Director | 31 Oct 2007←1 Year 5 Months→31 Mar 2009 | Active | |
| Scott Bader Company Limited Director • Director | 1 Jun 2003←7 Years→31 May 2010 | Active | |
| Tullis Russell Group Limited Director • Director | 29 Aug 2002←7 Years→30 Jun 2010 | Active | |
| Clydeport Limited Director • Co.director | 22 May 2000←2 Years 7 Months→15 Jan 2003 | Active | |
| Meconic Limited Director • Director | 27 Apr 1995←6 Years→29 Jul 2001 | Dissolved | |
| Northlink Ferries Limited Director • Company Director | 1 Jan 1995←1 Year 3 Months→31 Mar 1996 | Active | |
| David Macbrayne Limited Director • Company Director | 1 Jan 1995←1 Year 3 Months→31 Mar 1996 | Active | |
| Caledonian Maritime Assets Limited Director • Company Director | 1 Jan 1995←1 Year 3 Months→31 Mar 1996 | Active | |
| Chester In Concert Director • Director | 22 Jul 1993←3 Months→31 Oct 1993 | Dissolved | |
| Shell U.K. Limited Director • Oil Company Executive | 22 Mar 1993←1 Year→31 Mar 1994 | Active | |
