| Company | Timeline | Status | |
| 00234931 Limited Director • Engineer | 11 Oct 1992←33 Years→Current | Active | |
| Tylin Cae Limited Director • Engineer | 11 Oct 1991←34 Years→Current | Active | |
| Ellis Mechanical Services Limited Director • Unreported | 1 Jan 1970←26 Years→7 Oct 1996 | Dissolved | |
