| Company | Timeline | Status | |
| Milton Keynes Parks Trust Limited Director • University Professor | 2 Oct 2013←11 Months→11 Sep 2014 | Active | |
| Ecological Continuity Trust Director • Retired | 25 Jul 2008←17 Years→Current | Active | |
| Kenbourne Holdings Limited Director • Lecturer | 18 Jan 2004←19 Years→17 Mar 2023 | Dissolved | |
| North Grove Holdings Limited Director • Lecturer | 18 Jan 2004←18 Years→9 Jul 2022 | Dissolved | |
