| Company | Timeline | Status | |
| Institute Of Conservation Director • Chartered Surveyor | 5 Dec 2019←2 Years 12 Months→1 Dec 2022 | Active | |
| Durham Mount Oswald Limited Director • Chartered Surveyor | 25 Apr 2018←7 Years→31 Jul 2025 | Active | |
James Grierson Limited Director • Director | 20 Nov 2015←4 Years→14 Jan 2020 | Dissolved | |
| York Museums And Gallery Trust Director • Chartered Surveyor | 11 Nov 2015←9 Years→30 Dec 2024 | Active | |
Donaldsons LLP Designated LLP Member • Unreported | 31 May 2005←11 Years→15 Nov 2016 | Dissolved | |
