| Company | Timeline | Status | |
| River Valley Technologies Limited Director • Phyicist | 2 Sep 2004←5 Years→12 Oct 2009 | Active | |
| Focal Image Limited Director • Computer Consultant | 31 Dec 1991←34 Years→Current | Active | |
| Focal Image Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
