| Company | Timeline | Status | |
| Bourne Press Limited Director • Sales Director | 22 Dec 1991←→31 Jul 1991 | Active | |
| Optichrome Computer Systems Limited Director • Sales Director | 21 Dec 1990←7 Months→31 Jul 1991 | Active | |
| Optichrome Computer Systems Limited Director • Unreported | 1 Jan 1970←21 Years→31 Jul 1991 | Active | |
