| Company | Timeline | Status | |
| Tian Yu Association International Director • Computer Consultant | 1 Sep 2021←1 Year 10 Months→15 Jul 2023 | Active | |
| Gatekeeper Limited Director • Systems Engineer | 4 Oct 1999←26 Years→Current | Active | |
| Gatekeeper Technology Limited Director • Systems Engineer | 22 Oct 1998←27 Years→Current | Active | |
