| Company | Timeline | Status | |
| PCB Technical Solutions Limited Director • Engineer | 19 Dec 2013←11 Years→Current | Active | |
| PCB Technical Solutions Limited Director • Engineer | 19 Dec 2013←10 Years→6 Jun 2024 | Active | |
| H.M. Air Cooling Limited Director • Engineer | 5 Apr 1997←18 Years→16 Apr 2015 | Dissolved | |
