| Company | Timeline | Status | |
| R.J. Watkinson Associates Limited Director • Structural Engineer | 16 Aug 1993←3 Years→30 Apr 1997 | Active | |
| R.J. Watkinson And Partners Limited Director • Structural Engineer | 31 Dec 1991←5 Years→30 Apr 1997 | Active | |
| R.J. Watkinson And Partners Limited Director • Unreported | 1 Jan 1970←27 Years→30 Apr 1997 | Active | |
