| Adel Bedry Al-saleh | Director | 15 May 2020 | 31 Dec 2023 | American,british | 63 years |
| Alan George Scott | Director | 30 Mar 2001 | 10 Sept 2001 | British | 76 years |
| Alan George Scott | Secretary | 30 Mar 2001 | 10 Sept 2001 | British | - |
| Andrew James Green | Director | 19 Nov 2001 | 12 Nov 2007 | British | 71 years |
| Andrew John Parker | Secretary | 1 Apr 2008 | 31 Oct 2012 | British | - |
| Anthony Armitage Greener | Director | 19 Nov 2001 | 30 Sept 2006 | British | 86 years |
| Anthony Everard Ashiantha Chanmugam | Director | 1 Dec 2008 | 13 Jul 2016 | British | 72 years |
| Anthony Frank Elliott Ball | Director | 16 Jul 2009 | 11 Jul 2018 | British | 71 years |
| Bernardus Johannes Maria Verwaayen | Director | 14 Jan 2002 | 30 Jun 2008 | Dutch | 74 years |
| Carl George Symon | Director | 14 Jan 2002 | 13 Jan 2012 | American/british | 80 years |
| Clayton Mark Brendish | Director | 1 Sept 2002 | 31 Aug 2011 | British | 79 years |
| Colin Raymond Green | Secretary | 10 Sept 2001 | 26 Mar 2002 | British | - |
| David Borthwick | Director | 30 Mar 2001 | 10 Sept 2001 | British | 86 years |
| David Warren Arthur East | Director | 1 Feb 2014 | 31 May 2015 | British | 65 years |
| Deborah Ann Lathen | Director | 1 Feb 2007 | 31 Jan 2010 | American | 73 years |
| Edward Neville Isdell | Director | 19 Nov 2001 | 14 Jan 2002 | Irish | 83 years |
| Francis Christopher Buchan Bland | Director | 10 Sept 2001 | 30 Sept 2007 | British | 88 years |
| Francois Barrault | Director | 24 Apr 2007 | 30 Oct 2008 | French | 66 years |
| Gavin Echlin Patterson | Director | 1 Jun 2008 | 31 Jan 2019 | British | 59 years |
| Hanif Mohamed Lalani | Director | 7 Feb 2005 | 7 Jan 2010 | British | 64 years |
| Helen Alexander | Director | 19 Nov 2001 | 14 Jan 2002 | British | 69 years |
| Iain Cameron Conn | Director | 1 Jun 2014 | 13 Jul 2023 | British | 64 years |
| Ian Michael Cheshire | Director | 16 Mar 2020 | 13 Jul 2023 | British | 67 years |
| Ian Paul Livingston | Director | 8 Apr 2002 | 10 Sept 2013 | British | 62 years |
| Isabel Frances Hudson | Director | 1 Nov 2014 | 11 Jul 2024 | British | 67 years |
| Jan Petrus Du Plessis | Director | 1 Jun 2017 | 1 Dec 2021 | British,south African | 72 years |
| Jasmine Mary Whitbread | Director | 19 Jan 2011 | 6 Dec 2019 | British,swiss | 63 years |
| John Eric Daniels | Director | 1 Apr 2008 | 13 Jun 2012 | American/british | 75 years |
| John Frederick Nelson | Director | 14 Jan 2002 | 13 Jan 2008 | British | 79 years |
| Joseph Daniel Fitz | Secretary | 1 Nov 2012 | 31 Oct 2018 | - | - |
| June Frances De Moller | Director | 19 Nov 2001 | 14 Jan 2002 | British | 79 years |
| Karen Ann Richardson | Director | 1 Nov 2011 | 11 Jul 2018 | American | 64 years |
| Kathryn Silverwood | Director | 7 Sept 2001 | 10 Sept 2001 | British | 59 years |
| Laurence William Stone | Secretary | 27 Mar 2002 | 1 Apr 2008 | British | - |
| Leena Kumar Nair | Director | 10 Jul 2019 | 14 Jul 2022 | British | 57 years |
| Louis Ralph Hughes | Director | 19 Nov 2001 | 31 Mar 2006 | American | 77 years |
| Maarten Albert Van Den Bergh | Director | 19 Nov 2001 | 15 Jul 2009 | Dutch | 84 years |
| Margaret Ann Jay | Director | 14 Jan 2002 | 13 Jan 2008 | British | 87 years |
| Matti Juhani Alahuhta | Director | 1 Feb 2006 | 31 May 2009 | Finnish | 74 years |
| Michael Derek Vaughan Rake | Director | 26 Sept 2007 | 31 Oct 2017 | British | 78 years |
| Michael James Inglis | Director | 1 Sept 2015 | 15 Jul 2021 | British | 66 years |
| Nicholas Charles Rose | Director | 1 Jan 2011 | 16 Jul 2020 | British | 69 years |
| Patricia Hope Hewitt | Director | 24 Mar 2008 | 23 Mar 2014 | Australian | 78 years |
| Paul Joseph Reynolds | Director | 19 Nov 2001 | 14 Sept 2007 | British | 69 years |
| Peter Leahy Bonfield | Director | 10 Sept 2001 | 31 Jan 2002 | British | 82 years |
| Philip Andrew Hodkinson | Director | 1 Feb 2006 | 31 Jan 2016 | British | 68 years |
| Philip Eric Rene Jansen | Director | 1 Jan 2019 | 31 Jan 2024 | British | 59 years |
| Philip John Weston | Director | 19 Nov 2001 | 14 Jan 2002 | British | 88 years |
| Philip Roy Hampton | Director | 10 Sept 2001 | 30 Apr 2002 | British | 73 years |
| Pierre Danon | Director | 19 Nov 2001 | 28 Feb 2005 | French | 70 years |
| Rachel Canham | Secretary | 1 Nov 2018 | 1 Sept 2021 | - | - |
| Timotheus Hottges | Director | 29 Jan 2016 | 15 May 2020 | German | 64 years |