| Company | Timeline | Status | |
Radio Data Technology Limited Director • M D | 2 Apr 2001←13 Years→31 Mar 2014 | Dissolved | |
| Paging Systems Limited Director • Managing Director | 4 Jun 1992←4 Years→20 Sep 1996 | Active | |
| Paging Systems Limited Director • Unreported | 1 Jan 1970←26 Years→20 Sep 1996 | Active | |
