| Company | Timeline | Status | |
| Gaugemaster Controls Limited Director • Unreported | 13 May 1992←33 Years→Current | Active | |
| Switchfab Limited Director • Managing Director | 22 Sep 1991←33 Years→31 Dec 2024 | Active | |
| Switchfab Limited Director • Unreported | 1 Jan 1970←55 Years→31 Dec 2024 | Active | |
