| Alan Penrhyn-lowe | Director | 25 Jan 2017 | 19 Feb 2020 | British | 63 years |
| Alan Penrhyn-lowe | Secretary | 25 Jan 2017 | 19 Feb 2020 | - | - |
| Alan Watson | Director | 3 Apr 2001 | 31 Mar 2011 | British | 66 years |
| Andrew Paul Sharp | Director | 1 Jun 2013 | 26 Sept 2014 | British | 52 years |
| Anne Joan Hall | Director | 1 Oct 1999 | 31 Mar 2003 | British | 57 years |
| Anne Joan Hall | Director | 30 Aug 2011 | 31 Aug 2013 | British | 57 years |
| Anne Joan Hall | Secretary | 30 Aug 2011 | 23 May 2014 | - | - |
| Antony David Wilkinson | Director | 25 Nov 2013 | 31 Oct 2016 | British | 60 years |
| Barrie Charles Beckett | Director | 27 Sept 2007 | 30 Sept 2022 | British | 67 years |
| David Ian Wilcock | Secretary | 31 Dec 2020 | 26 Oct 2023 | - | - |
| Derek David Dennard | Director | 22 Jan 1992 | 1 May 2001 | British | 83 years |
| Donald Price | Director | 1 Oct 2000 | 25 Aug 2006 | British | 82 years |
| Graham Neil Turner | Director | 22 Jan 1992 | 1 May 2001 | British | 80 years |
| Graham Neil Turner | Secretary | 22 Jan 1992 | 1 May 2001 | British | - |
| Iain Alexander Muir Briggs | Director | 19 Feb 2020 | 31 Dec 2020 | British | 47 years |
| Iain Alexander Muir Briggs | Secretary | 19 Feb 2020 | 31 Dec 2020 | - | - |
| Ian Philip Watkinson | Director | 1 Nov 2006 | 26 Sept 2014 | British | 71 years |
| Jeffrey David Henton | Director | 1 Nov 2008 | 31 Mar 2021 | British | 65 years |
| John Edward Kitchin | Director | 12 Jan 2006 | 3 Jun 2013 | British | 74 years |
| Kevan Burns | Secretary | 1 Jul 2006 | 30 Aug 2011 | British | - |
| Laurence Rudman | Director | 1 Jun 2012 | 31 Oct 2019 | British | 71 years |
| Mark Day | Secretary | 23 May 2014 | 25 Jan 2017 | - | - |
| Michael William Gearon | Director | 22 Jan 1992 | 21 Jan 2006 | British | 80 years |
| Paul Timothy Wright | Director | 12 Jan 2006 | 4 Sept 2013 | British | 69 years |
| Paul Timothy Wright | Secretary | 1 May 2001 | 1 Jul 2006 | British | - |
| Peter Alan Hance | Director | 1 Sept 1998 | 1 Oct 1999 | British | 78 years |
| Peter Christopher Stevens | Director | 1 Sept 1998 | 1 Oct 1999 | British | 71 years |
| Richard Brunt Beckwith | Director | 1 Oct 1999 | 31 Aug 2013 | British | 71 years |
| Robert Benjamin Irvine | Director | 17 Aug 2015 | 31 Dec 2024 | British | 62 years |
| Stephen John Jameson | Director | 1 Apr 2008 | 12 Aug 2008 | British | 62 years |
| Stephen William Blake | Director | 21 Oct 2010 | 31 May 2023 | British | 61 years |