| Company | Timeline | Status | |
| Farmland Museum(The) Director • Retired | 22 Jan 2009←6 Years→29 Jan 2015 | Active | |
| Levy Hill Group Limited Director • Company Director | 1 Jun 1998←8 Years→15 Mar 2007 | Active | |
| Scintacor Limited Director • Management Consultant | 10 Apr 1995←11 Years→15 Mar 2007 | Active | |
| Levy Hill Laboratories Limited Director • Management Consultant | 10 Feb 1995←12 Years→15 Mar 2007 | Active | |
| Scientific Digital Imaging Limited Director • Management Consultant | 18 Nov 1994←9 Months→31 Aug 1995 | Active | |
| Kratos Analytical Limited Director • Director | 31 Dec 1991←1 Year→31 Dec 1992 | Active | |
