| Company | Timeline | Status | |
| Pioneer Technology Limited Director • Chartered Engineer  | 1 Nov 2009←1 Year 12 Months→29 Oct 2011  | Dissolved  | |
| Systematic Software Engineering Limited Director • Director  | 6 Oct 1992←16 Years→31 Dec 2008  | Active  | |
| Systematic Software Engineering Limited Secretary • Managing Director  | 6 Oct 1992←16 Years→11 Dec 2008  | Active  | |
| Pioneer Technology Limited Secretary • Unreported  | 24 Oct 1991←1 Year 1 Month→26 Nov 1992  | Dissolved  | |
| Pioneer Technology Limited Director • Managing Director  | 24 Oct 1991←1 Year 1 Month→26 Nov 1992  | Dissolved  | |
