| Company | Timeline | Status | |
| Pinnacle Motor Engineering Company Limited Director • Estate Manager | 29 Dec 1991←8 Years→31 Mar 2000 | Active | |
| John P. Mitchell (Estates) Limited Director • Company Director | 30 Jun 1991←34 Years→Current | Active | |
| Pinnacle Motor Engineering Company Limited Director • Unreported | 1 Jan 1970←30 Years→31 Mar 2000 | Active | |
