| Company | Timeline | Status | |
| City Home Stays Limited Director • Analyst | 14 Oct 2013←7 Years→20 Jul 2021 | Dissolved | |
| Eba Systems Limited Director • Unreported | 16 Jul 2013←12 Years→Current | Active | |
| HKBA Systems Limited Director • It Consultant | 14 Apr 2005←8 Years→16 Jul 2013 | Active | |
