| Company | Timeline | Status | |
| Wickers World (UK) Ltd Director • Farmer | 29 Oct 2007←14 Years→16 Nov 2021 | Dissolved | |
Almac Chipping Ltd Director • Farmer | 17 Oct 2006←13 Years→11 Feb 2020 | Dissolved | |
| Thurso Tyre Centre Ltd Director • Farmer | 12 Sep 2006←14 Years→13 Apr 2021 | Active | |
| J Sinclair & Son Ltd Director • Unreported | 18 Jan 2005←20 Years→Current | Active | |
| Caithness Tyre Company Limited Director • Farmer | 21 Feb 2003←17 Years→4 Sep 2020 | Active | |
