| Company | Timeline | Status | |
| KSD (Services) Ltd Director • Engineer | 3 Apr 2012←11 Years→5 Dec 2023 | Dissolved | |
| Grants (Dufftown) Limited Director • Design Engineer | 17 Mar 1998←13 Years→17 Feb 2012 | Active | |
| Forsyths Limited Director • Design Engineer | 16 Mar 1998←13 Years→17 Feb 2012 | Active | |
