| Company | Timeline | Status | |
| Deep Mine Limited Director • Chartered Accountant | 23 Jun 2010←14 Years→28 Apr 2025 | Dissolved | |
| High Cascade Limited Director • Chartered Accountant | 15 Oct 2009←1 Year 4 Months→28 Feb 2011 | Dissolved | |
| Robert Billingham Limited Director • Chartered Accountant | 29 Jan 2002←21 Years→30 Oct 2023 | Dissolved | |
