| Company | Timeline | Status | |
| Kerr Nisbet Holdings Limited Director • Director | 30 Sep 2021←1 Year 5 Months→27 Mar 2023 | Active | |
| J. Hickinson & Son Limited Director • Director | 30 Sep 2021←1 Year 5 Months→27 Mar 2023 | Active | |
| Angus F. Gunn Limited Director • Technical Consultant | 1 Dec 1998←24 Years→27 Mar 2023 | Active | |
