| Company | Timeline | Status | |
| Martian Engineering Limited Director • Audio Engineer  | 11 Aug 1997←28 Years→Current  | Active  | |
| Martian Engineering Limited Secretary • Audio Engineer  | 11 Aug 1997←2 Years 11 Months→1 Aug 2000  | Active  | |
| Deepdene Residents Association Limited Director • Sound Engineer  | 19 Sep 1991←8 Months→12 Jun 1992  | Active  | |
