| Company | Timeline | Status | |
| Spatial Interference Limited Director • Architect | 12 Dec 1996←29 Years→Current | Active | |
| Spatial Interference Limited Director • Architect | 1 Jul 1996←14 Days→15 Jul 1996 | Active | |
| Spatial Interference Limited Secretary • Architect | 24 Jul 1995←30 Years→Current | Active | |
| Astromine Limited Director • Architect | 5 Apr 1991←8 Years→14 Feb 2000 | Active | |
