| Anthony Douglas Roche | Director | 13 Feb 1995 | 26 May 1996 | British | 83 years |
| Antoine Hurel | Director | 26 May 1996 | 26 Aug 2001 | French | 78 years |
| Bernard Denis Maurice Tabary | Director | 1 Feb 2011 | 10 Dec 2017 | French | 66 years |
| Carolyn Ferguson | Secretary | 1 Jul 2006 | 12 Aug 2024 | British | - |
| Chantal Estragnat | Secretary | 28 Jul 1999 | 26 Aug 2001 | French | - |
| Charles Anthony Hodgson | Director | 6 Dec 2015 | 10 Dec 2017 | British | 47 years |
| Charles Stuart Horton | Director | 22 Aug 2001 | 26 Aug 2001 | British | 62 years |
| Charles Stuart Horton | Director | 3 Mar 2003 | 31 Mar 2006 | British | 62 years |
| Christian Schreyer | Director | 5 Nov 2021 | 31 Oct 2023 | German | 58 years |
| Christopher Derek Dyne Burchell | Director | 1 Apr 2006 | 15 Aug 2014 | British | 53 years |
| Christopher Moyes | Director | 26 Aug 2001 | 8 Jul 2006 | British | 77 years |
| Cyril Francis Johnson | Secretary | 26 May 1996 | 2 Apr 1997 | British | - |
| David Allen Brown | Director | 1 Apr 2011 | 5 Nov 2021 | British | 66 years |
| David Raymond Franks | Director | 26 Aug 2001 | 28 Feb 2003 | British | 69 years |
| David William Sawyer | Director | 26 Aug 2001 | 31 Mar 2006 | British | 77 years |
| Dominique Giuntini | Director | 12 Jun 1996 | 26 Aug 2001 | French | 79 years |
| Elodie Marie Francoise Brian | Director | 5 Jun 2019 | 27 Sept 2021 | French | 47 years |
| Gary Richard Cooper | Director | 28 Mar 1995 | 26 May 1996 | British | 66 years |
| Geoffrey Brian Harrison Mee | Director | 26 May 1996 | 6 Jul 2000 | British | - |
| Gordon Alexander Boyd | Director | 28 Sept 2021 | 28 Mar 2022 | British | 66 years |
| Graham Charles Eccles | Director | 12 Jan 1995 | 26 May 1996 | British | 80 years |
| Ian Cross | Director | 13 Feb 1995 | 26 May 1996 | British | 78 years |
| Ian Philip Butcher | Director | 26 Aug 2001 | 1 Jul 2007 | British | 75 years |
| Ian Philip Butcher | Secretary | 26 Aug 2001 | 30 Jun 2006 | British | - |
| James Colin Eden Webster | Director | 26 May 1996 | 28 Apr 1999 | British | 90 years |
| Jean Paul Bonnec | Secretary | 2 Apr 1997 | 28 Jul 1999 | British | - |
| Jean-pierre Deghaye | Director | 26 Aug 2001 | 5 Oct 2007 | French | 78 years |
| John Graeme Nelson | Director | 31 Jan 1995 | 26 May 1996 | British | 79 years |
| Keith Down | Director | 7 Mar 2011 | 6 Dec 2015 | British | 61 years |
| Keith Lawrence Ludeman | Director | 26 Aug 2001 | 2 Jul 2011 | British | 76 years |
| Kevin Steven Warrell | Director | 12 Jun 1996 | 7 Oct 1998 | British | 66 years |
| Malcolm Robert Rimmer | Director | 20 Jul 2010 | 11 Jun 2015 | British | 67 years |
| Martin Stanley Andrew Ballinger | Director | 26 Aug 2001 | 31 Dec 2004 | British | 83 years |
| Michel Laurent Masson | Director | 6 Oct 2006 | 11 Sept 2009 | French | 58 years |
| Nicholas Swift | Director | 17 Jul 2007 | 7 Mar 2011 | British | 62 years |
| Nicolas Luc Daniel Vandevyver | Director | 4 Dec 2009 | 11 Jun 2015 | French | 62 years |
| Olivier Brousse | Director | 22 Jul 1999 | 26 Aug 2001 | French | 61 years |
| Patrick Raymond Jeantet | Director | 26 Oct 2005 | 1 Feb 2011 | French | 66 years |
| Peter Graham Hewett | Director | 12 Jan 1995 | 31 Jan 1995 | British | 78 years |
| Peter Graham Hewett | Secretary | 12 Jan 1995 | 26 May 1996 | British | - |
| Peter Robert Mayne | Director | 7 Jan 2002 | 14 Mar 2014 | British | 71 years |
| Simon Patrick Butcher | Director | 14 Mar 2016 | 30 Nov 2018 | British | 59 years |
| Stephane Andre Richon | Director | 5 Oct 2007 | 6 May 2010 | French | 74 years |
| Stephen Richard Grant | Director | 7 Oct 1998 | 28 Sept 2000 | British | 78 years |
| Terence Anthony Jenner | Director | 23 Feb 1996 | 24 Feb 1996 | British | 76 years |
| Thomas William Mclardy Smith | Director | 7 Aug 2006 | 31 Dec 2010 | British | 69 years |
| Yves Magnan | Director | 26 Aug 2001 | 26 Oct 2005 | French | 78 years |