| Company | Timeline | Status | |
| Colmac Milk Limited Director • Director | 21 Dec 2023←1 Year 10 Months→Current | Active | |
| Cove Park Director • Chair Of The Mount Stuart Trust | 31 Aug 2023←2 Years 1 Month→Current | Active | |
| Mid Ascog Limited Director • Director | 6 Jan 2023←2 Years 9 Months→Current | Active | |
| Tallwood Investments Ltd Director • Company Director | 5 Jul 2021←4 Years→Current | Active | |
| Nicholson McCallum Ltd Director • Director | 8 Apr 2021←4 Years→Current | Active | |
| The Mount Stuart Trust Director • Director | 10 Sep 2020←5 Years→Current | Active | |
| Bute Finance Director • Company Director | 30 Sep 2019←6 Years→Current | Active | |
| The Fruitmarket Gallery Director • Director | 26 May 2009←6 Years→7 Sep 2015 | Active | |
| Dumfries Estate (Bankend) Limited Director • Director | 14 Jan 2004←6 Years→30 Jun 2010 | Active | |
| Dumfries House Home Farm Limited Director • Director | 14 Jan 2004←3 Years→28 Nov 2007 | Active | |
