| Company | Timeline | Status | |
| Duncan Property Investments Limited Secretary • Unreported | 3 Nov 1995←30 Years→Current | Active | |
Colvin Nursing Agency Limited Secretary • Unreported | 4 Dec 1992←2 Years 4 Months→6 Apr 1995 | Dissolved | |
| Spacelabs Healthcare Limited Secretary • Unreported | 4 Dec 1992←12 Years→8 Feb 2005 | Active | |
