| Company | Timeline | Status | |
| Malken Gauge & Tool Co. Limited Director • Financial Controller | 25 Aug 2001←24 Years→Current | Active | |
| Newtown Metrology Limited Secretary • Secretary | 8 Jul 1998←27 Years→Current | Active | |
| Malken Gauge & Tool Co. Limited Secretary • Unreported | 30 Nov 1991←33 Years→Current | Active | |
| Zodiac Screw Gauge Limited Secretary • Unreported | 15 Sep 1991←1 Year→22 Sep 1992 | Dissolved | |
