| Company | Timeline | Status | |
| David McKay Brown (Gunmakers) Limited Director • Unreported  | 23 Dec 2021←3 Years→Current  | Active  | |
| Buchan Guns Ltd Director • Owner  | 10 Dec 2021←3 Years→Current  | Active  | |
| Gordon Sawmills Limited Director • Unreported  | 1 Aug 2008←17 Years→Current  | Active  | |
| Buchan Property Holdings Ltd Director • Director  | 13 Oct 2006←19 Years→Current  | Active  | |
| Meldrum House Hotel Limited Director • Director  | 3 Jun 2004←21 Years→Current  | Active  | |
Ron Shanks Associates Limited Director • Builder  | 4 Mar 2003←13 Years→21 Dec 2016  | Dissolved  | |
| Meldrum House Golf Company Ltd Director • Builder/director  | 31 Jan 1998←27 Years→Current  | Active  | |
| Meldrum House Estates Limited Director • Builder/director  | 23 Sep 1997←28 Years→Current  | Active  | |
| Buchan Homes Limited Director • Builder  | 31 Dec 1988←36 Years→Current  | Active  | |
