| Company | Timeline | Status | |
| Ergonomics Marketing Limited Director • University Researcher | 21 May 1991←4 Years→4 Jul 1995 | Dissolved | |
| Ergonomics Marketing Limited Secretary • University Researcher | 21 May 1991←4 Years→4 Jul 1995 | Dissolved | |
| Institute Of Ergonomics And Human Factors Director • Research Fellow | 8 Apr 1991←1 Year 3 Months→9 Jul 1992 | Active | |
