| Company | Timeline | Status | |
| The Hume Castle Preservation Trust Director • Farmer | 18 Apr 2017←5 Years→15 Mar 2023 | Active | |
| R.R. Tweedie & Company Limited Director • Farmer | 2 Dec 1988←37 Years→Current | Active | |
| R.R. Tweedie & Company Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
