| Company | Timeline | Status | |
| Sitegard Limited Director • Director | 4 Feb 2016←5 Years→1 Feb 2022 | Dissolved | |
| Integrated Engineering Systems Limited Director • Unreported | 1 Jul 2006←19 Years→Current | Active | |
| Integrated Engineering Systems Limited Director • Director | 30 Apr 2005←1 Day→1 May 2005 | Active | |
| Autoquench Limited Director • Unreported | 15 Sep 1994←31 Years→Current | Active | |
| Integrated Engineering Systems Limited Director • Mining Engineer | 17 Jul 1991←7 Years→10 Jun 1999 | Active | |
