| Company | Timeline | Status | |
| Vacutherm Ltd Director • Engineer | 8 Apr 2015←10 Years→Current | Active | |
| Envirohomes Limited Director • Engineer | 26 Jun 2006←8 Years→26 Mar 2015 | Active | |
| Envirohomes Limited Secretary • Unreported | 26 Jun 2006←8 Years→26 Mar 2015 | Active | |
| SD Engineering Design Limited Director • Director | 23 Dec 2003←21 Years→Current | Active | |
