| Austin Ernest Bide | Director | 30 Sept 1991 | 31 Dec 1999 | British | 111 years |
| Axel De Saint-quentin | Director | 19 May 2006 | 1 Oct 2009 | French | 63 years |
| Celia Rosalind Gough | Director | 22 Nov 2013 | 31 Oct 2025 | British | 51 years |
| Celia Rosalind Gough | Secretary | 25 Apr 2014 | 31 Oct 2025 | - | - |
| Cyrille Du Peloux De Saint Romain | Director | 2 Jan 2003 | 12 Jun 2007 | French | 72 years |
| David Andrew Gerrard | Director | 1 Oct 2009 | 5 Oct 2021 | British | 62 years |
| David Thomas Powell | Director | 21 Jan 1994 | 1 Jan 1999 | British | 91 years |
| Didier Alain Pierre Barbe | Director | 30 Sept 1991 | 10 Sept 1993 | French | 83 years |
| Edward Jacques Dupont-madinier | Director | 18 Nov 1992 | 17 Feb 2000 | French | 72 years |
| Estelle Karine Brachlianoff | Director | 29 Aug 2012 | 15 Oct 2018 | French | 54 years |
| Gustave Henri Eugene Kuch | Director | 30 Sept 1991 | 4 Jul 2002 | French | 87 years |
| Jean Dominique Mallet | Director | 12 Jun 2007 | 7 Jul 2013 | French | 74 years |
| John Michael Kutner | Director | 30 Sept 1991 | 31 Dec 2008 | British | 86 years |
| John Michael Kutner | Secretary | 30 Sept 1991 | 2 Jan 2003 | British | - |
| Keith Mcgurk | Director | 4 Jan 2021 | 31 May 2023 | British | 67 years |
| Keith Riley | Director | 12 Mar 2001 | 9 Feb 2012 | British | 78 years |
| Kevin Anthony Hurst | Director | 24 Nov 2016 | 31 Dec 2021 | British | 68 years |
| Marguerite Alice Ulrich | Director | 22 Nov 2013 | 31 Aug 2019 | American | 65 years |
| Michel Jean Jacques Gourvennec | Director | 8 Dec 1999 | 2 Jan 2003 | French | 82 years |
| Nicolas Bardis | Director | 30 Sept 1991 | 18 Apr 1994 | Greek | 78 years |
| Olivier Marie Bret | Director | 22 Nov 2013 | 30 Jun 2014 | French | 64 years |
| Patrick Richard Gilroy | Director | 23 Jul 2014 | 31 Jul 2016 | Irish | 55 years |
| Paul Michael Levett | Director | 31 Dec 2008 | 8 Apr 2011 | British | 69 years |
| Richard Douglas Berry | Secretary | 1 Jan 2009 | 1 Jan 2012 | Australian | - |
| Robert Charles Hunt | Secretary | 1 Dec 2011 | 25 Apr 2014 | - | - |
| Robert Charles Hunt | Director | 9 Feb 2012 | 31 Oct 2018 | British | 69 years |
| Robert Charles Hunt | Secretary | 2 Jan 2003 | 1 Jan 2009 | British | - |
| Thomas Richard Phineas Riall | Director | 9 Jul 1999 | 31 Oct 2000 | British | 66 years |
| Thomas Spaul | Director | 21 Aug 1998 | 30 Sept 2013 | British | 73 years |
| Thomas Spaul | Director | 25 Apr 2014 | 21 Oct 2015 | British | 73 years |
| Yann-marie Le Dore | Director | 30 Sept 1991 | 11 Dec 1996 | French | 79 years |