| Company | Timeline | Status | |
| Vacuduct Ltd Secretary • Company Secretary | 3 Dec 2008←5 Years→30 Sep 2014 | Dissolved | |
| Resun Limited Secretary • Unreported | 7 Dec 2005←12 Years→11 Oct 2018 | Dissolved | |
| A C Haines Engineering Ltd Secretary • Unreported | 16 Dec 2002←13 Years→13 Jun 2016 | Active | |
| Process Environmental Control Systems Limited Secretary • Secretary | 3 Sep 2001←24 Years→Current | Active | |
| Meicasoft Limited Secretary • Unreported | 19 Jan 1995←29 Years→26 Nov 2024 | Dissolved | |
