| Company | Timeline | Status | |
| Abacus Group Limited Director • Managing Director | 30 Mar 2004←2 Years 3 Months→30 Jun 2006 | Dissolved | |
| PBP Management Limited Director • Managing Director | 26 Jul 1995←30 Years→Current | Active | |
| Martel Instruments Limited Director • Electronics | 31 Dec 1990←5 Years→3 Dec 1996 | Active | |
