| Company | Timeline | Status | |
| Clariant Trustees Limited Director • Retired | 8 Apr 2004←21 Years→Current | Active | |
| Nipa Laboratories Limited Director • Director | 1 Nov 1992←8 Months→30 Jun 1993 | Dissolved | |
| Graesser Laboratories Limited Director • Director | 1 Nov 1992←8 Months→30 Jun 1993 | Active | |
