| Company | Timeline | Status | |
| Housetop Apostolica Limited Director • Retired Medical Doctor | 24 Jun 2013←7 Years→7 Sep 2020 | Dissolved | |
| Housetop Care Limited Director • Retired Medical Doctor | 22 May 2013←7 Years→7 Sep 2020 | Active | |
| Mount Vernon Postgraduate Medical Centre Director • Medical Doctor | 18 Mar 1991←13 Years→23 Sep 2004 | Active | |
