| Company | Timeline | Status | |
| Briton & Ensign Limited Director • Engineer | 31 Dec 1991←34 Years→Current | Active | |
| Briton Plant Holdings Limited Director • Engineer | 31 Dec 1991←34 Years→Current | Active | |
| Briton & Ensign Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
| Briton Plant Holdings Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
