| Company | Timeline | Status | |
| Ultrawave Limited Director • Company Director | 14 Nov 1992←9 Years→17 Jul 2002 | Active | |
| Beaconflex Limited Director • Dental Technician | 24 Jun 1991←8 Years→17 Dec 1999 | Dissolved | |
| Minerva Laboratories Limited Director • Dental Technician | 24 Jun 1991←11 Years→17 Jul 2002 | Active | |
