| Company | Timeline | Status | |
| The Countryside Alliance Foundation Director • Professor | 3 Dec 2008←7 Years→21 Nov 2016 | Active | |
| The Chiswick House And Gardens Trust Director • Writer | 29 Jul 2008←10 Years→16 Jul 2019 | Active | |
| Working For The Countryside Director • Writer | 26 Jul 2005←2 Years 10 Months→10 Jun 2008 | Active | |
| John Muir Trust(The) Director • Writer | 23 Apr 1994←9 Years→18 May 2003 | Active | |
