| Company | Timeline | Status | |
| Welldata (Subsurface Surveillance Systems) Ltd Director • Lecturer | 23 Sep 2016←9 Years→Current | Active | |
| Comtech Research Limited Director • Mathematician | 5 Apr 2016←9 Years→Current | Active | |
| Ventech Systems Limited Director • Mathematician | 12 Aug 2010←15 Years→Current | Active | |
