| Company | Timeline | Status | |
| Netvideo Ltd Director • Chartered Engineer | 13 Nov 1997←25 Years→13 Mar 2023 | Active | |
| Transtechnology Limited Director • Chartered Engineer | 3 Dec 1996←28 Years→Current | Active | |
| Raster Vision Limited Director • Electronics Engineer | 30 Sep 1992←17 Years→8 Dec 2009 | Active | |
| Circatron Ltd Director • Chartered Engineer | 30 Sep 1991←15 Years→1 Jan 2007 | Active | |
