| Company | Timeline | Status | |
Sigma Ltd Director • Analyst | 25 Oct 2002←18 Years→3 Nov 2020 | Dissolved | |
| Merlin Research Limited Director • Unreported | 1 Mar 2002←23 Years→Current | Active | |
| Merlin Research Limited Director • Director | 4 Sep 2000←3 Months→1 Jan 2001 | Active | |
| Group Sigma Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
