| Company | Timeline | Status | |
| Roskill Information Services Limited Director • Management Consultant | 9 Dec 2010←10 Years→17 Jun 2021 | Dissolved | |
| Roskill Holdings Limited Director • Management Consultant | 1 Dec 2010←10 Years→17 Jun 2021 | Dissolved | |
| Bloomsbury Minerals Economics Limited Director • Management Consultant | 1 Jul 1998←16 Years→2 Jan 2015 | Active | |
