| Company | Timeline | Status | |
| David McKay Brown (Gunmakers) Limited Director • Unreported | 23 Dec 2021←3 Years→Current | Active | |
| Buchan Guns Ltd Director • Unreported | 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 • Unreported | 31 Jan 1998←27 Years→Current | Active | |
| Meldrum House Estates Limited Director • Unreported | 23 Sep 1997←28 Years→Current | Active | |
| Buchan Homes Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
