| Company | Timeline | Status | |
| Gillmoss Limited Director • Developer | 14 Nov 1995←15 Years→27 Oct 2011 | Active | |
| Medical Engineering Resource Unit Director • Chartered Engineer | 11 Oct 1992←2 Years 2 Months→1 Jan 1995 | Active | |
| Institution Of Engineering Designers (The) Director • Retired | 29 Mar 1992←→7 Mar 1992 | Active | |
