| Company | Timeline | Status | |
| George Starkey Hut Limited Director • Unreported | 23 Feb 2023←2 Years 8 Months→Current | Active | |
| Granite Rock Limited Director • Reservoir Engineer | 28 Feb 1995←1 Year 2 Months→23 May 1996 | Liquidation | |
| Mount Everest Foundation (The) Director • Reservoir Engineer | 1 Jul 1993←5 Years→11 Dec 1998 | Active | |
