| Adam Bradley Daniels | Director | 29 Apr 2022 | 17 Mar 2025 | British | 41 years |
| Alain Speeckaert | Director | 25 Jul 2002 | 27 Jul 2010 | Belgian | 77 years |
| Aylmer Ingram Lenton | Director | 15 Jun 1992 | 24 Dec 1993 | British | 99 years |
| Chantal Benedicte Forrest | Director | 12 Mar 2008 | 31 Jul 2008 | English,french | 65 years |
| Chantal Benedicte Forrest | Secretary | 21 Feb 2002 | 31 Jul 2008 | English,french | - |
| Christopher Tawney | Director | 16 Feb 2001 | 31 Mar 2007 | British | 69 years |
| Claude Drew Pike | Director | 15 Jun 1992 | 27 Jul 1995 | British | 111 years |
| David Bertram Bowden | Director | 15 Jun 1992 | 24 May 1996 | British | 88 years |
| David Bertram Bowden | Secretary | 15 Jun 1992 | 27 May 1993 | British | - |
| Dennis Mitchell | Director | 15 Jun 1992 | 30 Dec 1995 | British | 96 years |
| Eckart Groll | Director | 15 Jun 1992 | 31 Jan 1998 | German | 93 years |
| Eric Ash | Director | 15 Jun 1992 | 20 Dec 1995 | British | 95 years |
| Felix Moreno Diaz | Director | 12 Sept 2012 | 31 Dec 2019 | Spanish | 64 years |
| Francisco Fernando Fernandez Torres | Director | 1 Jun 2002 | 14 May 2004 | Spanish | 77 years |
| Frederick Alan Simon Lesser | Director | 24 Dec 1993 | 10 May 2002 | British | 94 years |
| Gerhard Hillebrand | Director | 11 Dec 1998 | 31 Dec 2006 | German | 74 years |
| Gilbert Nicholas Gargour | Director | 15 Jun 1992 | 31 Dec 1993 | British | 83 years |
| Graham Bernard Lawson | Director | 1 May 1995 | 11 Jul 2002 | British | 84 years |
| Horst Grosspeter | Director | 15 Jun 1992 | 1 May 1995 | German | 86 years |
| Howard James Matthewson | Director | 8 Dec 2000 | 21 May 2002 | British | 68 years |
| Ian David Holyoak | Secretary | 1 Jan 2001 | 21 Feb 2002 | British | - |
| Jacques Emsens | Director | 31 Dec 1993 | 25 Jun 2019 | Belgian | 63 years |
| Jean Louis Herremans | Director | 12 Mar 2008 | 25 Jun 2008 | Belgian | 63 years |
| Jean Louis Herremans | Director | 12 Sept 2012 | 1 Mar 2015 | Belgian | 63 years |
| Jean-luc Andre Victor Deleersnyder | Director | 6 Jul 2006 | 31 Aug 2020 | Belgian | 65 years |
| John Drew Pike | Director | 15 Jun 1992 | 3 Apr 2001 | British | 79 years |
| John Willem Van Put | Director | 1 Jan 2015 | 29 Apr 2022 | Dutch | 64 years |
| Karel Clement Jozef Vinck | Director | 3 May 2000 | 1 Sept 2002 | Belgian | 88 years |
| Kurt Jean-emile Elise Decat | Director | 1 Mar 2015 | 1 Apr 2021 | Belgian | 61 years |
| Laurence Boens | Director | 12 Sept 2012 | 29 Apr 2022 | Belgian | 67 years |
| Michael Ernest Beckett | Director | 15 Jun 1992 | 31 Dec 2006 | British | 90 years |
| Michael Robert Young | Director | 24 May 1996 | 28 Feb 2001 | British | 79 years |
| Michael Ruston Higgs | Director | 26 Sept 2002 | 31 Dec 2007 | British | 73 years |
| Richard Wilson Jewson | Director | 1 May 2004 | 31 Jul 2007 | British | 82 years |
| Ronald Shuttleworth | Director | 1 Aug 1996 | 1 Oct 2003 | British | 81 years |
| Stanislas Emsens | Director | 15 Jun 1992 | 31 Dec 2001 | Belgian | 100 years |
| Thomas Charles Cutbush | Director | 1 Jan 2007 | 1 Jan 2015 | Australian | 71 years |
| Timothy Patrick Vyvyan Robertson | Director | 15 Jun 1992 | 30 Jun 1998 | British | 83 years |
| William John Christopher Watts | Secretary | 27 May 1993 | 31 Dec 2000 | British | - |
| Wilson Dyet Brown | Director | 25 Jul 2002 | 31 May 2006 | British | 79 years |