| Company | Timeline | Status | |
| David McKay Brown (Gunmakers) Limited Director • Director | 23 Dec 2021←3 Years→Current | Active | |
| McKay Brown Gunmakers Ltd Director • Director | 5 Aug 2021←4 Years→Current | Active | |
| Buchan Group Holdings Scotland Ltd Director • Director | 5 Aug 2021←4 Years→Current | Active | |
| Buchan Guns Ltd Director • None | 22 Mar 2011←14 Years→Current | Active | |
