| Company | Timeline | Status | |
| Stridon Clinical Research Limited Director • Medical Doctor | 30 Jan 2018←7 Years→Current | Active | |
| Prefect Limited Director • Medical Doctor | 26 Mar 2009←7 Years→17 May 2016 | Active | |
| Richmond Pharmaceutical Services Limited Director • Medical Doctor | 13 Nov 2007←8 Years→17 May 2016 | Active | |
| Richmond Pharmacology Limited Director • Medical Doctor | 13 Aug 2001←14 Years→17 May 2016 | Active | |
