| Company | Timeline | Status | |
| Altnaharra Hotel LLP Designated LLP Member • Unreported | 21 Dec 2022←2 Years 10 Months→Current | Active | |
| HWM Finance Limited Director • Unreported | 30 Sep 2022←3 Years→Current | Active | |
| HW Mason & Sons (Farming) Ltd Director • Unreported | 29 Jan 2020←5 Years→Current | Active | |
| HW Mason & Sons (Holdings) Ltd Director • Unreported | 29 Jan 2020←5 Years→Current | Active | |
| H W Mason & Sons Limited Director • Unreported | 11 Dec 2019←5 Years→Current | Active | |
Tilbrook Properties LLP Designated LLP Member • Unreported | 31 May 2011←7 Years→5 Mar 2019 | Dissolved | |
