| Company | Timeline | Status | |
| Clarkson Research Holdings Limited Director • Unreported | 5 Oct 2012←13 Years→Current | Active | |
| Clarkson Valuations Limited Director • Unreported | 24 Jan 2008←17 Years→Current | Active | |
| Clarkson Research Services Limited Director • Unreported | 30 Mar 2005←20 Years→Current | Active | |
