| Company | Timeline | Status | |
| Hamilton Control Systems Ltd Secretary • Engineer | 8 Feb 2005←5 Years→3 Aug 2010 | Active | |
| Vacua-Therm Sales Limited Director • Design Eng/r | 13 Oct 1988←21 Years→3 Aug 2010 | Active | |
| Vacua-Therm Design Limited Director • Design Engineer | 13 Oct 1988←21 Years→3 Aug 2010 | Active | |
