| Company | Timeline | Status | |
| Samphire Trust Director • Conservation Engineer | 27 Mar 2015←10 Years→Current | Active | |
| Blackheath Asset Management Limited Director • Conservation Engineer | 8 Jun 2006←18 Years→9 May 2025 | Active | |
| Colebrooke Consulting Limited Director • Chartered Engineer | 30 Jan 1991←34 Years→Current | Active | |
