| Alan Charles Vause | Director | 1 Dec 1995 | 17 Sept 1996 | British | 95 years |
| Alan Walter Rudge | Director | 11 Nov 1997 | 31 Mar 2001 | British | 89 years |
| Allan Edward Cook | Director | 10 Sept 2009 | 3 Jul 2017 | British | 77 years |
| Allister Gordon Langlands | Director | 4 Sept 2013 | 3 Jul 2017 | British | 68 years |
| Alun Hughes Griffiths | Director | 13 Mar 2007 | 30 Jul 2014 | British | 72 years |
| Amanda Jane Emilia Massie | Secretary | 28 Mar 2002 | 5 Oct 2004 | British | - |
| Anne Esther Randall | Secretary | 5 Oct 2004 | 9 May 2005 | British | - |
| Ashley Louise Gerrard | Secretary | 1 Sept 2017 | 28 Sept 2017 | - | - |
| Barry Cecil Hutt | Director | 15 Nov 1994 | 22 Feb 2000 | British | 78 years |
| Catherine Annick Caroline Bradley | Director | 9 Jun 2015 | 3 Jul 2017 | British | 67 years |
| Catherine Elizabeth Lindsay | Secretary | 1 Sept 2017 | 28 Sept 2017 | - | - |
| Christophe Marie Yves Junillon | Director | 30 Sept 2022 | 26 Jul 2023 | British,french | 56 years |
| Christopher Ball | Director | 25 Apr 2018 | 30 Sept 2022 | British | 53 years |
| Christopher Jon Anthony Binnie | Director | 1 Apr 1994 | 1 Apr 1997 | British | 88 years |
| Christopher Ross Maguire Kemball | Director | 14 May 2002 | 31 Dec 2006 | British | 80 years |
| Christopher Terrel Wyatt | Director | 20 Sept 1992 | 16 Sept 1997 | British | 99 years |
| Colin Peter Haylock | Director | 20 Sept 1992 | 11 Nov 1994 | British | 80 years |
| Dave Duncan Struan Robertson | Director | 1 Aug 2000 | 7 Sept 2005 | British | 77 years |
| David Slater | Director | 20 Sept 1992 | 8 Oct 1999 | British | 83 years |
| David Stuart James | Director | 15 Nov 1994 | 22 Jun 2000 | British | 81 years |
| Edmund Arthur Wallis | Director | 8 Sept 2004 | 31 Jan 2010 | British | 87 years |
| Fiona Jane Clutterbuck | Director | 13 Mar 2007 | 3 Jul 2017 | British | 68 years |
| Frances Anne Heaton | Director | 20 Sept 1992 | 16 Sept 2003 | British | 82 years |
| Frank Micklethwaite | Director | 20 Sept 1992 | 14 Nov 1995 | British | 102 years |
| Gretchen Hauser Watkins | Director | 1 Aug 2015 | 3 Jul 2017 | American | 58 years |
| Heath Stewart Drewett | Director | 15 Jun 2009 | 15 Dec 2017 | British | 60 years |
| Helen Alice Baker | Secretary | 21 Dec 2012 | 31 Aug 2013 | - | - |
| Helen Alice Baker | Secretary | 27 Sept 2014 | 2 Mar 2015 | - | - |
| Hetal Patel | Director | 3 Jul 2017 | 18 Jul 2018 | British | 54 years |
| James Morley | Director | 1 Jan 2001 | 30 Jun 2009 | United Kingdom | 77 years |
| James Patrick Martin-bates | Director | 20 Sept 1992 | 31 Mar 1994 | British | 114 years |
| James Richard Compston | Director | 3 Jul 2017 | 11 Apr 2020 | British | 61 years |
| Joanne Elizabeth Curin | Director | 10 Feb 2009 | 31 Jan 2014 | New Zealander | 68 years |
| Keith Edward Clarke | Director | 1 Oct 2003 | 31 Jul 2011 | British | 74 years |
| Keith Maurice Hounslow | Director | 20 Sept 1992 | 31 Mar 1995 | British | 91 years |
| Krishnamurthy Rajagopal | Director | 24 Jun 2008 | 10 Nov 2016 | British | 73 years |
| Mark Stephen Anderson | Director | 1 Sept 2017 | 17 May 2021 | British | 61 years |
| Martin Macdonald Grant | Director | 25 Apr 2018 | 31 Mar 2020 | British | 68 years |
| Michael Cecil Boyce | Director | 5 May 2004 | 31 Jul 2013 | British | 83 years |
| Michael Hugh Sigvald Muller | Director | 20 Sept 1992 | 31 Mar 1993 | British | 96 years |
| Michael Makepeace Eugene Jeffries | Director | 20 Sept 1992 | 1 Jan 2005 | British | 82 years |
| Michael Timothy Foley | Director | 1 Apr 1994 | 31 Mar 1999 | British | 85 years |
| Paul Colin Marsh | Director | 14 May 2002 | 10 Apr 2003 | British | 68 years |
| Peter Allan Brown | Director | 20 Sept 1992 | 31 Mar 1993 | British | 97 years |
| Peter Michael Williams | Director | 5 May 2004 | 8 Sept 2011 | British | 81 years |
| Philip Stephen James Davis | Secretary | 9 May 2005 | 30 Sept 2007 | British | - |
| Richard Douglas Jarvis | Director | 20 Sept 1992 | 1 Feb 2000 | British | 83 years |
| Richard Howarth Tomalin | Secretary | 20 Sept 1992 | 28 Mar 2002 | British | - |
| Richard John Piper | Director | 4 Oct 1993 | 1 Oct 2002 | British | 74 years |
| Richard Webster | Secretary | 2 Mar 2015 | 31 Aug 2017 | - | - |
| Richard Webster | Secretary | 1 Oct 2007 | 26 Sept 2014 | British | - |
| Robert Hawley | Director | 1 Apr 1994 | 16 Sept 1997 | British | 90 years |
| Robert James Macleod | Director | 23 Jun 2004 | 19 Jun 2009 | British | 62 years |
| Robin Simon Southwell | Director | 22 Mar 2001 | 30 Sept 2002 | British | 66 years |
| Rodney Earl Slater | Director | 9 Sept 2011 | 30 Jul 2014 | American | 71 years |
| Roger William Umney | Director | 20 Sept 1992 | 1 Oct 2002 | British | 88 years |
| Sam Stephen Edward North | Director | 15 Feb 1996 | 25 Jun 1996 | British | 82 years |
| Stephen Robert Billingham | Director | 1 Oct 2002 | 24 Aug 2004 | British | 68 years |
| Thomas Chris Leppert | Director | 1 Oct 2013 | 3 Jul 2017 | American | 72 years |
| Uwe Krueger | Director | 14 Jun 2011 | 3 Jul 2017 | German | 62 years |
| William Sinclair Ryrie | Director | 1 Apr 1994 | 31 Mar 2001 | British | 98 years |