| Company | Timeline | Status | |
| Middleton Sheet Metal Co.Limited Director • Engineer | 1 Nov 1991←10 Years→16 Nov 2001 | Active | |
| Middleton Welders Limited Director • Engineer | 1 Nov 1991←10 Years→16 Nov 2001 | Active | |
| Cooper Webb Jones & Co. (1967) Director • Engineer | 11 Dec 1990←35 Years→Current | Active | |
