| Alexander Doll | Director | 1 Apr 2018 | 15 Nov 2019 | German | 56 years |
| Angela Susan Risley | Director | 9 Mar 2009 | 27 Aug 2010 | British | 68 years |
| Ann Veronica Margaret Palmer | Director | 1 Sept 2001 | 22 Apr 2009 | British | 86 years |
| Arthur Mark Saxton | Director | 21 Feb 2000 | 2 Mar 2005 | British | 74 years |
| Berthold Huber | Director | 1 May 2017 | 28 Feb 2020 | German | 63 years |
| Bettina Boos | Director | 10 Jan 2022 | 31 May 2024 | German | 53 years |
| Christian Goeseke | Director | 14 Dec 2020 | 28 Feb 2025 | German | 59 years |
| Christoph Bohl | Director | 9 Apr 2013 | 1 Nov 2013 | German | 63 years |
| David Paul Turner | Secretary | 4 May 1991 | 30 Jun 2011 | British | - |
| David Robert Martin | Director | 23 Feb 1998 | 31 May 2017 | British | 75 years |
| David Timothy Chisnall Evans | Director | 19 Oct 2010 | 30 Nov 2011 | British | 60 years |
| Euan Alexander Robert Cameron | Director | 3 May 2001 | 31 Dec 2003 | British | 73 years |
| Evelyn Palla | Director | 1 Aug 2020 | 31 May 2024 | Italian | 53 years |
| Gordon William Hodgson | Director | 4 May 1991 | 31 Dec 1998 | British | 95 years |
| Helen Mary Seeber | Secretary | 22 Oct 2021 | 9 Nov 2021 | - | - |
| Iain Mulligan Jago | Director | 1 Jul 2020 | 14 Dec 2020 | British | 56 years |
| Iain Stewart Jane | Director | 4 May 1991 | 30 Sept 1994 | British | 81 years |
| Immo Querner | Director | 12 May 2021 | 31 May 2024 | German | 63 years |
| James Mckinnon | Director | 14 Mar 1994 | 23 Apr 1999 | British | 97 years |
| Joerg Sandvoss | Director | 1 Oct 2020 | 2 Sept 2022 | German | 68 years |
| John Alfred Ray | Director | 11 Mar 1997 | 4 Jul 2003 | British | 75 years |
| John Streeton Ward Obe | Director | 1 Dec 1994 | 26 Apr 2002 | British | 93 years |
| Josef Adalbert Blank | Director | 1 Jan 2012 | 9 Apr 2013 | German | 68 years |
| Keith Ackroyd | Director | 1 Aug 1994 | 31 Jul 1996 | British | 92 years |
| Kenneth Mcintyre Carlaw | Secretary | 30 Jun 2011 | 31 Mar 2016 | - | - |
| Leonard Francis Clayton | Director | 9 Dec 1998 | 30 Jul 1999 | British | 83 years |
| Levin Holle | Director | 1 Mar 2020 | 31 May 2024 | German | 59 years |
| Manfred Rudhart | Director | 27 Aug 2010 | 12 Oct 2020 | German | 61 years |
| Marein Mueller | Director | 1 Jan 2018 | 31 Dec 2021 | German | 59 years |
| Martin James Hibbert | Director | 1 Jan 2011 | 30 Jun 2020 | British | 59 years |
| Michael David Cooper | Director | 19 Oct 2010 | 31 Oct 2014 | British | 63 years |
| Michael David Cooper | Director | 12 Oct 2020 | 1 Nov 2024 | British | 63 years |
| Michael John Allen | Director | 3 Jun 1997 | 30 Jun 2005 | British | 81 years |
| Michael Peter Gwilt | Director | 11 Mar 1997 | 12 Jun 1998 | British | 69 years |
| Nicholas Peter Buckles | Director | 19 Jul 2005 | 27 Aug 2010 | British | 65 years |
| Norbert Kurt Emil Klimt | Director | 21 May 2014 | 1 Dec 2015 | German | 63 years |
| Peter Charles Davison | Secretary | 1 Apr 2016 | 22 Oct 2021 | - | - |
| Ralph Rohde | Director | 1 Oct 2022 | 31 May 2024 | German | 54 years |
| Richard John Broadbent | Director | 2 Jul 2004 | 27 Aug 2010 | British | 73 years |
| Richard Lutz | Director | 27 Aug 2010 | 5 Dec 2017 | German | 62 years |
| Richard Lutz | Director | 20 Nov 2019 | 31 Jul 2022 | German | 62 years |
| Robert John Davies | Director | 30 Dec 1998 | 19 Apr 2006 | British | 78 years |
| Robert William Elliott | Director | 4 May 1991 | 1 Dec 1994 | British | 106 years |
| Robert William Holland | Director | 19 Oct 2010 | 31 May 2014 | British | 76 years |
| Ruediger Wolfgang Grube | Director | 27 Aug 2010 | 1 Jan 2012 | German | 75 years |
| Simon George Batey | Director | 1 Oct 2003 | 27 Aug 2010 | British | 73 years |
| Stefan Klenke | Director | 1 Sept 2015 | 31 May 2024 | German | 55 years |
| Stephen Geoffrey Williams | Director | 1 Sept 2005 | 27 Aug 2010 | British | 78 years |
| Stephen John Clayton | Director | 23 Feb 1998 | 22 Apr 2009 | British | 73 years |
| Stephen Philip Lonsdale | Director | 11 Jun 1991 | 16 Dec 2010 | British | 69 years |
| Terrance Neil Pykett | Director | 4 May 1991 | 5 Apr 1997 | British | 78 years |
| Thomas Cowie | Director | 4 May 1991 | 31 Dec 1993 | British | 104 years |
| Torsten Schein | Director | 1 Nov 2013 | 31 Dec 2017 | German | 63 years |
| Ulrich Homburg | Director | 27 Aug 2010 | 1 Aug 2015 | German | 71 years |
| William Gareth Cooper | Director | 2 Mar 1999 | 31 Oct 2004 | British | 83 years |
| Wolfgang Bohner | Director | 1 Mar 2020 | 31 May 2024 | German | 64 years |