| Company | Timeline | Status | |
| Ew Defence Limited Director • Engineer | 19 May 2011←14 Years→Current | Active | |
| GNRS Technology Limited Director • Systems Engineer | 13 Mar 2001←7 Years→27 Feb 2009 | Active | |
| Quadramedia Limited Secretary • Systems Engineer | 7 Apr 1997←28 Years→Current | Active | |
| Quadramedia Limited Director • Unreported | 7 Apr 1997←28 Years→Current | Active | |
| Gatton Park Limited Director • Systems Engineer | 31 Aug 1991←34 Years→Current | Active | |
| Gatton Park Limited Secretary • Unreported | 31 Aug 1991←34 Years→Current | Active | |
