| Alastair James Gordon-stewart | Director | 1 Mar 2012 | 1 Jun 2016 | British | 53 years |
| Andrew Nicholas Cenwulf Storey | Director | 5 Dec 2018 | 4 Mar 2022 | British | 68 years |
| Bethan Melges | Secretary | 16 Jul 2015 | 9 Sept 2019 | - | - |
| Colin Ronald William Busby | Director | 28 Jun 1996 | 1 Jan 2004 | British | 81 years |
| Cyril Leslie Mitchell | Director | 28 Apr 1998 | 1 Nov 2000 | British | 83 years |
| Deborah Pamela Hamilton | Secretary | 27 Jun 2011 | 22 Sept 2014 | - | - |
| Deena Elizabeth Mattar | Director | 6 Nov 2000 | 2 Dec 2002 | British | 60 years |
| Deena Elizabeth Mattar | Director | 1 Jan 2004 | 11 Aug 2008 | British | 60 years |
| Deena Elizabeth Mattar | Secretary | 6 Nov 2000 | 2 Dec 2002 | British | - |
| Gary Barnes | Director | 28 Jun 1996 | 1 Sept 2003 | British | 71 years |
| Harold Lister Thompson | Secretary | 1 Oct 1992 | 28 Jun 1996 | British | - |
| Harold Lister Thompson | Secretary | 2 Dec 2002 | 8 Sept 2003 | British | - |
| Ian Michael Lawson | Director | 1 Nov 2000 | 8 Jul 2002 | British | 68 years |
| Ian Paul Woods | Director | 28 Jun 1996 | 6 Nov 2000 | British | 68 years |
| Ian Paul Woods | Secretary | 28 Jun 1996 | 6 Nov 2000 | British | - |
| James Anthony John Byrne | Director | 8 Jul 2002 | 22 Mar 2006 | British | 69 years |
| John Alfred Neville Tibbitts | Director | 2 Apr 2001 | 31 Jan 2010 | British | 70 years |
| John Andrew Young | Director | 1 Jul 2000 | 31 Dec 2006 | British | 80 years |
| John Dodds | Director | 1 Oct 1992 | 8 Mar 1993 | British | 80 years |
| John Dodds | Director | 2 Apr 2001 | 31 Mar 2010 | British | 80 years |
| John William Hilton Lawson | Director | 8 Mar 1993 | 28 Jun 1996 | British | 81 years |
| Matthew Armitage | Secretary | 22 Dec 2014 | 16 Jul 2015 | - | - |
| Michael Paul Sheffield | Director | 1 Apr 2010 | 30 Jun 2014 | British | 64 years |
| Nigel Alan Turner | Director | 27 Jun 2011 | 19 Jan 2016 | British | 60 years |
| Paul John Staniland | Director | 1 Oct 1992 | 28 Jun 1996 | British | 70 years |
| Phil John Whiscombe | Director | 1 Jan 2005 | 9 Aug 2012 | British | 78 years |
| Philip Higgins | Secretary | 9 Sept 2019 | 24 Sept 2021 | - | - |
| Philip Roger Perkins George | Director | 8 Sept 2003 | 21 Dec 2012 | British | 54 years |
| Philip Roger Perkins George | Secretary | 8 Sept 2003 | 27 Jun 2011 | British | - |
| Phillippa Jane Wilton Prongué | Director | 1 Dec 2011 | 5 Dec 2018 | British | 49 years |
| Richard John Leaning | Director | 4 May 2010 | 1 Dec 2011 | British | 57 years |
| Richard William Simkin | Director | 11 Aug 2008 | 30 Jun 2011 | British | 77 years |
| Thomas George Gilman | Director | 5 Dec 2018 | 19 Feb 2020 | British | 55 years |
| Wayne Roger Stiller | Director | 1 Jun 2013 | 18 Oct 2013 | British | 55 years |