| Company | Timeline | Status | |
| Ab Sciex UK Limited Director • Chief Financial Officer | 2 Sep 2009←7 Months→5 Apr 2010 | Active | |
| Leica Microsystems Cambridge Limited Director • Accountant | 22 Sep 2005←9 Years→28 Nov 2014 | Active | |
| Leica Microsystems (UK) Limited Director • Accountant | 22 Sep 2005←9 Years→28 Nov 2014 | Active | |
| Cambridge Instruments Limited Director • Accountant | 22 Sep 2005←9 Years→1 Nov 2014 | Dissolved | |
| Linx Printing Technologies Limited Director • Executive | 4 Jan 2005←8 Years→9 Aug 2013 | Active | |
| Launchchange Instrumentation Limited Director • Accountant | 4 Feb 2002←6 Years→28 Nov 2008 | Active | |
| Hach Lange Ltd Director • Chartered Accountant | 16 Nov 1999←5 Years→1 Mar 2005 | Active | |
