| Company | Timeline | Status | |
| Harrison Vallis Gilbert Limited Director • Conservation Consultant | 21 Mar 2002←21 Years→6 Jun 2023 | Dissolved | |
| Dunns Lane Management Company Limited Director • Heritage Consultant | 29 Apr 1998←27 Years→Current | Active | |
| Dunns Lane Management Company Limited Director • Heritage Consultant | 29 Apr 1998←24 Years→26 Oct 2022 | Active | |
