| Company | Timeline | Status | |
| The OLD Saw Mill Management Limited Director • Surgeon | 7 Apr 2015←4 Years→13 Feb 2020 | Active | |
| YHSP Limited Director • Consultant Surgeon | 16 Feb 2007←3 Years→11 Oct 2010 | Active | |
Darson Limited Director • Surgeon | 13 Apr 2006←13 Years→13 Feb 2020 | Dissolved | |
