| Company | Timeline | Status | |
| Alexander McKenzie Limited Director • Director | 14 Sep 2015←10 Years→Current | Active | |
| Alexander McKenzie Limited Director • Director | 14 Sep 2015←8 Years→17 Apr 2024 | Active | |
| Island Gas (Singleton) Limited Director • Chartered Accountant | 7 Jun 1994←1 Year 4 Months→10 Oct 1995 | Active | |
| Teredo Oils Limited Director • Accountant | 15 Sep 1993←1 Year 9 Months→30 Jun 1995 | Dissolved | |
