| Company | Timeline | Status | |
| Earth Trust Director • Retired | 7 Dec 2018←9 Months→26 Sep 2019 | Active | |
| Sylva Foundation Director • Environmentalist | 10 Jul 2017←8 Years→Current | Active | |
| Trust For Oxfordshire's Environment (Toe) Ltd Director • Retired | 14 Jan 2011←3 Years→25 Sep 2014 | Active | |
| The Institute Of Ecology And Environmental Management Director • Ecologist | 11 Nov 2009←3 Years→6 Nov 2013 | Active | |
| Wild Oxfordshire Director • Ecologist | 24 Feb 2009←5 Years→8 Dec 2014 | Active | |
| Ecological Continuity Trust Director • Ecologist | 25 Jul 2008←17 Years→Current | Active | |
| Earth Trust Director • Ecologist | 4 Jul 2008←6 Years→28 Nov 2014 | Active | |
| Naturebureau Limited Director • Conservation Ecologist | 2 Nov 2007←18 Years→Current | Active | |
| Earth Trust Secretary • Ecologist | 6 Dec 2002←6 Months→12 Jun 2003 | Active | |
| The Institute Of Ecology And Environmental Management Director • Ecologist | 27 Nov 2002←2 Years 7 Months→30 Jun 2005 | Active | |
