| Alyson Elizabeth Mulholland | Secretary | 30 Nov 2017 | 26 May 2021 | - | - |
| Andrew Hedley Hornby | Director | 1 Jan 2000 | 14 Dec 2001 | British | 58 years |
| Archibald Gerard Kane | Director | 11 Jun 2009 | 19 May 2011 | British | 73 years |
| Brian Gammell Ivory | Director | 14 Dec 2001 | 30 Sept 2003 | British | 76 years |
| David Fisher | Director | 1 Jan 2004 | 31 Dec 2004 | British | 67 years |
| David Spencer Boyle | Director | 14 Dec 2001 | 30 Sept 2003 | British | 83 years |
| Douglas Ferrans | Director | 14 Dec 2001 | 3 Nov 2008 | British | 71 years |
| Gregor Ninian Stewart | Director | 11 Jun 2009 | 31 Jul 2011 | British | 61 years |
| Grenville John Folwell | Director | 1 Jan 1997 | 1 Jan 2000 | British | 82 years |
| Harold Francis Baines | Secretary | 22 Dec 2000 | 14 Dec 2001 | British | - |
| Howard Julian Briggs | Secretary | 1 May 1996 | 31 Jul 1999 | British | - |
| Howard Michael Posner | Director | 14 Dec 2001 | 5 Aug 2005 | British | 69 years |
| James Coyle | Director | 3 Dec 2012 | 30 Apr 2015 | British | 69 years |
| James Robert Crosby | Director | 1 May 1996 | 1 Apr 1999 | British | 69 years |
| Jeffrey Michael Blackburn | Director | 1 May 1996 | 31 Dec 1998 | British | 84 years |
| Joanne Dawson | Director | 1 Mar 2006 | 28 Feb 2010 | British | 63 years |
| John Lockhart Wood | Director | 1 Jan 1997 | 31 Dec 1998 | British | 90 years |
| John Neil Maclean | Director | 14 Dec 2001 | 30 Sept 2003 | British | 81 years |
| John Stephen Edwards | Director | 14 Dec 2001 | 23 Feb 2006 | British | 70 years |
| Katharine Sarah Mcintyre | Director | 2 Feb 2004 | 5 Aug 2005 | British | 63 years |
| Keith William Abercromby | Director | 14 Dec 2001 | 17 Oct 2005 | British | 61 years |
| Kenneth Melville | Secretary | 31 Jul 2011 | 28 Mar 2014 | British | - |
| Michael Henry Ellis | Director | 1 Apr 1999 | 14 Dec 2001 | British | 74 years |
| Michael Rodney Newton Moore | Director | 1 Jan 1997 | 31 Dec 1998 | British | 89 years |
| Michael Rodney Newton Moore | Director | 14 Dec 2001 | 30 Sept 2003 | British | 89 years |
| Michelle Antoinette Angela Johnson | Secretary | 26 Sept 2016 | 30 Nov 2017 | - | - |
| Paul Gittins | Secretary | 28 Mar 2014 | 26 Sept 2016 | - | - |
| Paul Jacques Sylvain Astruc | Director | 27 Aug 2015 | 28 Feb 2019 | British | 59 years |
| Paul Russell Moore | Director | 15 Aug 2002 | 31 Dec 2003 | United Kingdom | 67 years |
| Peter John Veale | Secretary | 14 Dec 2001 | 1 Feb 2010 | British | - |
| Peter Louis Michael Sherwood | Director | 1 Jan 1997 | 31 Dec 1998 | British | 84 years |
| Peter Louis Michael Sherwood | Director | 14 Dec 2001 | 30 Sept 2003 | British | 84 years |
| Philip Andrew Hodkinson | Director | 14 Dec 2001 | 12 Apr 2007 | British | 67 years |
| Robert Joseph Mcgee | Director | 26 Oct 2011 | 3 Dec 2012 | American | 63 years |
| Robert Philippe Walther | Director | 1 Jan 1997 | 31 Dec 1998 | British | 82 years |
| Roger Fawcett Boyes | Director | 1 Jan 1997 | 14 Dec 2001 | British | 81 years |
| Roland Gordon Ward | Director | 1 Jan 1997 | 31 Dec 1998 | British | 80 years |
| Roland Gordon Ward | Director | 14 Dec 2001 | 27 Mar 2003 | British | 80 years |
| Rosemary Harris | Director | 11 Jun 2009 | 31 Jul 2011 | British | 67 years |
| Sally Mayer | Secretary | 1 Feb 2010 | 31 Jul 2011 | - | - |
| Simon Nicholas Waite | Secretary | 1 Aug 1999 | 22 Dec 2000 | British | - |
| Steven James Colsell | Director | 12 Apr 2007 | 29 Nov 2013 | British | 61 years |
| William Anthony Beadle | Director | 1 Jan 1997 | 31 Dec 1998 | British | 76 years |