| Company | Timeline | Status | |
| Kingsbury High School Director • University Professor | 31 Oct 2019←6 Years→Current | Active | |
| Coronary Prevention Group Director • University Teacher | 2 Jan 1999←26 Years→11 Mar 2025 | Dissolved | |
| Gemequal Property Management Limited Director • Epidemiologist | 25 Oct 1992←19 Years→26 Feb 2012 | Active | |
