| Abbie Louisa Rees-browne | Secretary | 19 Oct 2018 | 14 Jan 2025 | - | - |
| Amanda Jane Beaton | Secretary | 13 Jul 2012 | 1 Dec 2024 | - | - |
| Andrew Paul Goss | Director | 7 Jan 2015 | 22 Mar 2018 | British | 67 years |
| Barbara Rosemarie Bergmeier | Director | 1 Jul 2022 | 31 Jan 2025 | German | 57 years |
| Bennie Warren Fowler | Director | 28 May 2003 | 16 Aug 2005 | American | 69 years |
| Charles Gilbert Vacy Ash | Secretary | 4 Dec 2002 | 8 Feb 2006 | British | - |
| Clive Charles Page | Secretary | 16 Jun 2000 | 2 Jun 2008 | British | - |
| David Miles Smith | Director | 30 Apr 2002 | 8 Feb 2010 | British | 64 years |
| David Owen | Director | 31 Jul 2020 | 31 Mar 2022 | British | 54 years |
| Desmond Maurice Thurlby | Director | 10 Jun 2008 | 31 Dec 2012 | British | 61 years |
| Ermal Mckinley Faulkner | Director | 17 Nov 2008 | 1 Aug 2009 | United States | 57 years |
| Felix Brautigam | Director | 1 Apr 2018 | 30 Jun 2021 | German | 58 years |
| Francois Alain Dossa | Director | 7 Jun 2021 | 30 Aug 2024 | French | 62 years |
| Frank Lazzaro | Director | 22 Nov 2005 | 7 Mar 2008 | Australian | 65 years |
| Geoffrey Paul Polites | Director | 16 Aug 2005 | 20 Apr 2008 | Australian | 78 years |
| Gerard Gabriel Mcgovern | Director | 10 Jun 2008 | 16 Mar 2010 | British | 70 years |
| Grant Alexander Mcpherson | Director | 1 Jul 2018 | 13 Dec 2021 | British | 59 years |
| Hanne Birgitte Breinbjerg Sorensen | Director | 26 Jul 2019 | 15 May 2022 | Danish | 60 years |
| Hanno Kirner | Director | 7 Jun 2016 | 31 Dec 2023 | German | 55 years |
| Hans Wolfgang Reitzle | Director | 15 Aug 2000 | 1 May 2002 | German | 76 years |
| Helen Mary Mclintock | Secretary | 8 Feb 2006 | 27 Nov 2006 | British | - |
| Helen Mary Mclintock | Secretary | 30 May 2008 | 15 Aug 2008 | British | - |
| Helen Mary Mclintock | Secretary | 22 Feb 2010 | 25 Feb 2015 | British | - |
| Ian Jeffrey Harnett | Director | 7 Jun 2016 | 31 Jul 2020 | British | 64 years |
| Jeremy Michael Vincent | Director | 17 Nov 2008 | 16 Mar 2010 | British | 66 years |
| Jonathan Edward Osgood | Secretary | 13 Jul 2005 | 30 Jun 2008 | British | - |
| Joseph Greenwell | Director | 2 Dec 2003 | 16 Aug 2005 | British | 74 years |
| Kathryn Szczepanik Lamping | Secretary | 15 Aug 2000 | 4 Dec 2002 | British | - |
| Keith John Benjamin | Secretary | 19 Oct 2018 | 20 Sept 2022 | - | - |
| Keith John Benjamin | Director | 16 Nov 2009 | 16 Mar 2010 | British | 69 years |
| Kenneth David Matheson Gregor | Director | 10 Jun 2008 | 1 Jun 2019 | British | 58 years |
| Lewis William Killcross Booth | Director | 22 Nov 2005 | 2 Jun 2008 | British | 77 years |
| Lyle Alexander Watters | Director | 16 Jun 2000 | 15 Aug 2000 | British | 60 years |
| Mark Fields | Director | 1 Jul 2002 | 22 Nov 2005 | American | 64 years |
| Matthew Gordon Robert Taylor | Director | 28 May 2003 | 12 May 2006 | British | 65 years |
| Michael Charles Stewart Edwards | Secretary | 4 Dec 2002 | 3 Nov 2011 | Other | - |
| Michael David Wright | Director | 17 Nov 2008 | 31 Mar 2016 | British | 72 years |
| Michael Francis Marecki | Director | 30 Apr 2002 | 28 May 2003 | British | 65 years |
| Michael Francis Marecki | Secretary | 15 Aug 2000 | 30 Jun 2005 | British | - |
| Nicholas Martin Rogers | Director | 7 Jun 2016 | 13 Dec 2021 | British | 58 years |
| Nicholas Paul Collins | Director | 22 Mar 2021 | 8 Dec 2023 | British | 51 years |
| Paul Grahame Knight | Director | 16 Jun 2000 | 15 Aug 2000 | British | 78 years |
| Paul William Cope | Director | 17 Nov 2008 | 31 Dec 2013 | British | 71 years |
| Peter Joseph Sherry Jr | Secretary | 15 Aug 2000 | 4 Dec 2002 | American | - |
| Philip Colin Popham | Director | 12 May 2006 | 31 Dec 2014 | British | 60 years |
| Philip Hodgkinson | Director | 10 Jun 2008 | 7 Jun 2016 | British | 66 years |
| Ralf Dieter Speth | Director | 22 Feb 2010 | 10 Sept 2020 | German | 70 years |
| Richard Martin Alistair Bielby | Secretary | 21 Aug 2007 | 21 Sept 2018 | Other | - |
| Robert Alan Dover | Director | 15 Aug 2000 | 2 Dec 2003 | British | 80 years |
| Robert Leon Shanks | Director | 28 May 2003 | 22 Nov 2005 | American | 72 years |
| Robert Simon Joyce | Director | 17 Nov 2008 | 16 Mar 2010 | British | 67 years |
| Simon Morgan Warr | Director | 17 Nov 2008 | 16 Mar 2010 | British | 58 years |
| Susan Lesley Pearson | Secretary | 15 Aug 2000 | 31 Mar 2019 | Other | - |
| Thierry Yves Henri Bollore | Director | 10 Sept 2020 | 31 Dec 2022 | French | 62 years |
| Timothy Peter Davis | Director | 17 Nov 2008 | 16 Mar 2010 | British | 65 years |
| William James Cosgrove | Director | 15 Aug 2000 | 1 Mar 2003 | American | 80 years |
| Wolfgang Karl Epple | Director | 1 Jan 2013 | 31 May 2016 | German | 72 years |
| Wolfgang Stadler | Director | 17 Feb 2014 | 30 Jun 2018 | German | 67 years |
