| Company | Timeline | Status | |
| Trinity Architects Limited Secretary • Building Surveyor | 12 Jul 2000←25 Years→Current | Active | |
| Trinity Architects Limited Director • Building Surveyor | 12 Jul 2000←25 Years→Current | Active | |
| Trinity Architectural Limited Director • Building Surveyor | 5 Jul 2000←25 Years→Current | Active | |
| Trinity Architectural Limited Secretary • Building Surveyor | 5 Jul 2000←25 Years→Current | Active | |
| Quadrant Architecture Limited Secretary • Unreported | 1 Jun 1999←26 Years→Current | Active | |
| Trinity Architecture Limited Secretary • Unreported | 1 Mar 1999←26 Years→Current | Active | |
| Trinity Architecture Limited Director • Building Engineer | 20 Feb 1996←29 Years→Current | Active | |
| Quadrant Architecture Limited Director • Building Engineer | 13 Feb 1996←29 Years→Current | Active | |
