| Alastair James Gordon-stewart | Director | 12 Feb 2013 | 1 Jun 2016 | British | 54 years |
| Alistair James Neil Hewitt | Director | 31 Jan 2009 | 13 Apr 2011 | British | 54 years |
| Andrew Nicholas Cenwulf Storey | Director | 5 Dec 2018 | 4 Mar 2022 | British | 69 years |
| Andrew Nicholas Howard White | Director | 26 Apr 2011 | 31 Jan 2013 | British | 56 years |
| Bethan Melges | Secretary | 16 Jul 2015 | 9 Sept 2019 | - | - |
| Bruce Smith Anderson | Director | 20 Sept 2005 | 17 Apr 2008 | British | 63 years |
| Christopher Joseph Bond | Director | 11 Apr 2002 | 19 Aug 2002 | British | 68 years |
| Deborah Pamela Hamilton | Secretary | 25 Jul 2011 | 22 Sept 2014 | - | - |
| Deena Elizabeth Mattar | Director | 2 Apr 2002 | 12 Apr 2002 | British | 61 years |
| Deena Elizabeth Mattar | Secretary | 2 Apr 2002 | 12 Apr 2002 | British | - |
| Fraser Mckenzie Sime | Director | 17 Apr 2008 | 29 Oct 2009 | British | 55 years |
| Gillian Christine Sellar | Director | 26 Jul 2005 | 31 Jan 2009 | British | 57 years |
| Iain Stewart Mackintosh | Director | 12 Apr 2002 | 26 Jul 2005 | British | 55 years |
| Ian Paul Woods | Director | 2 Apr 2002 | 12 Apr 2002 | British | 69 years |
| Ian Paul Woods | Director | 9 Jan 2004 | 31 Mar 2013 | British | 69 years |
| Ian Paul Woods | Secretary | 12 Apr 2002 | 25 Jul 2011 | British | - |
| John Bruce Anderson | Director | 22 Feb 2013 | 1 Jun 2016 | British | 63 years |
| Kevin Dixon | Director | 26 Apr 2011 | 29 Dec 2017 | British | 71 years |
| Matthew Armitage | Secretary | 22 Dec 2014 | 16 Jul 2015 | - | - |
| Nigel Alan Turner | Director | 26 Apr 2011 | 19 Jan 2016 | British | 61 years |
| Pauline Anne Bradley | Director | 12 Apr 2002 | 25 Jan 2005 | British | 65 years |
| Peter Joseph Cummings | Director | 12 Apr 2002 | 24 Oct 2005 | British | 71 years |
| Philip Higgins | Secretary | 9 Sept 2019 | 24 Sept 2021 | - | - |
| Phillippa Jane Wilton Prongué | Director | 22 Feb 2013 | 5 Dec 2018 | British | 50 years |
| Richard William Simkin | Director | 11 Apr 2002 | 30 Jun 2011 | British | 78 years |
| Thomas George Gilman | Director | 26 Apr 2011 | 19 Feb 2020 | British | 56 years |