| Company | Timeline | Status | |
| Athena Learning Trust Director • Retired | 15 Dec 2012←6 Years→15 Dec 2018 | Active | |
| Oxford Lasers Group Limited Director • Unreported | 23 Oct 2006←19 Years→Current | Active | |
| Oxford Lasers Micromachining Limited Director • Unreported | 27 Jul 1998←27 Years→Current | Active | |
| Oxford Lasers Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
