| Andre Joel Motte | Director | 30 Nov 1991 | 13 Feb 1995 | French | 78 years |
| Andrew Bruce Carruthers | Director | 4 Jun 2007 | 28 Sept 2016 | British | 60 years |
| Andrew David Norman Betton | Secretary | 19 May 2011 | 28 Sept 2016 | - | - |
| Andrew David Norman Betton | Director | 4 Jun 2007 | 28 Sept 2016 | British | 55 years |
| Andrew Edward Round | Director | 21 May 2013 | 15 Jun 2016 | British | 52 years |
| Andrew Peter Geoffrey Holmes | Director | 30 Nov 1991 | 16 Apr 2008 | British | 82 years |
| Charles Jonathan Gee | Director | 1 Jan 2004 | 28 Sept 2016 | British | 73 years |
| Christopher John Mawhood | Secretary | 30 Nov 1991 | 21 Nov 1994 | British | - |
| Eric Pierre Gerard Aubert | Director | 17 Feb 1993 | 31 Oct 1994 | French | 65 years |
| Helen Lipscomb | Secretary | 11 Jun 2004 | 22 Mar 2005 | British | - |
| Henry William Baines Sallitt | Director | 6 Jun 2005 | 17 Aug 2007 | British | 64 years |
| Iain Charles Stephen Wilcock | Director | 1 Jan 2000 | 26 Mar 2007 | British | 65 years |
| James Dominic Brooke | Director | 26 Oct 2004 | 5 Oct 2007 | British | 55 years |
| Jayesh Ramesh Patel | Director | 4 Jun 2007 | 28 Sept 2016 | British | 57 years |
| Jeremy Bruce Milne | Director | 1 Aug 2000 | 17 Aug 2007 | British | 60 years |
| Jeremy William Sharman | Director | 17 Feb 1993 | 6 Apr 1995 | British | 63 years |
| John Arthur Spooner | Director | 30 Nov 1991 | 16 Apr 2008 | British | 73 years |
| Mark Geoffrey William Burgess | Director | 30 Nov 1991 | 15 Jan 1996 | British | 67 years |
| Martin Gwynne Williams | Director | 5 Feb 2001 | 31 Dec 2010 | British | 78 years |
| Michel Rene Marie Jaugey | Director | 30 Nov 1991 | 22 Mar 1994 | French | 99 years |
| Michiel Alexander De Haan | Director | 17 Feb 1993 | 12 Nov 1999 | Netherlands | 79 years |
| Nghi Thuy Tran | Secretary | 9 Mar 2007 | 19 May 2011 | British | - |
| Patricia Cox | Secretary | 21 Nov 1994 | 29 Oct 1999 | British | - |
| Patrick-antoine Plouvier | Director | 30 Nov 1991 | 24 Jul 1992 | French | 72 years |
| Penelope Rosemary Attridge | Director | 1 Feb 2011 | 31 Oct 2015 | British | 74 years |
| Philippe Marie Claude | Director | 30 Nov 1991 | 1 Apr 2004 | French | 78 years |
| Richard John Drover | Secretary | 29 Oct 1999 | 11 Jun 2004 | British | - |
| Richard John Drover | Secretary | 22 Mar 2005 | 9 Mar 2007 | British | - |
| Simon Hugh Verdon Acland | Director | 30 Nov 1991 | 29 May 2007 | British | 68 years |
| Simon Martin Macnab | Director | 30 Nov 1991 | 6 Nov 1992 | British | 71 years |
| Thomas Alfred Teichman | Director | 4 Jun 2007 | 31 Dec 2010 | British | 79 years |