| Company | Timeline | Status | |
Improvair Thermal Recovery Systems Limited Director • Director | 13 May 2014←6 Years→13 Oct 2020 | Dissolved | |
| Improvair Limited Director • Director | 14 Jun 2010←9 Years→28 Feb 2020 | Active | |
| Northern Ground Testing Limited Secretary • Drilling | 17 Jan 2002←23 Years→Current | Active | |
| Northern Ground Testing Limited Director • Director | 17 Jan 2002←23 Years→Current | Active | |
