| Company | Timeline | Status | |
| Lambert Brothers Limited Director • Accountant | 25 Jun 1992←6 Years→4 Feb 1999 | Active | |
| Lambert Brothers Limited Secretary • Accountant | 25 Jun 1992←6 Years→4 Feb 1999 | Active | |
| The Chadwick Group Limited Secretary • Unreported | 13 Apr 1992←8 Months→15 Dec 1992 | Dissolved | |
| Formula Air Racing Limited Secretary • Unreported | 1 Sep 1991←1 Year 3 Months→15 Dec 1992 | Active | |
