| Alan James Wilson | Director | 31 Dec 1992 | 2 Jan 1996 | British | 94 years |
| Andrew Marc Jones | Director | 14 Jul 2006 | 20 Mar 2008 | British | 58 years |
| Andrew Marc Jones | Director | 26 Mar 2008 | 6 Nov 2009 | British | 58 years |
| Anthony Braine | Director | 18 Dec 2006 | 20 Mar 2008 | British | 69 years |
| Antony John Van Der Hoorn | Director | 11 May 2012 | 9 Aug 2013 | British | 65 years |
| Antony John Van Der Hoorn | Director | 11 May 2012 | 9 Aug 2013 | British | 65 years |
| Benjamin Toby Grose | Director | 11 Sept 2015 | 19 Oct 2017 | British | 57 years |
| Bryan John Lewis | Director | 26 Mar 2008 | 19 Oct 2017 | British | 59 years |
| Carolina Alfred Cohen | Director | 3 Jul 2018 | 16 Jul 2018 | British | 41 years |
| Charles Sheridan Alexander Maudsley | Director | 6 May 2010 | 11 Sept 2015 | British | 62 years |
| Christopher Michael John Forshaw | Director | 18 Dec 2006 | 28 Jan 2010 | British | 77 years |
| Cyril Metliss | Director | 31 Dec 1992 | 14 Jul 2006 | British | 103 years |
| David Arthur O'loan | Director | 2 Oct 2015 | 22 Dec 2016 | Irish | 56 years |
| David Charles Berry | Director | 31 Dec 1992 | 17 Jul 1998 | British | 89 years |
| David Clifford Wheeler | Director | 14 Jan 2019 | 14 Jun 2019 | British | 42 years |
| Graham Charles Roberts | Director | 26 Feb 2002 | 20 Mar 2008 | British | 68 years |
| John Harry Weston Smith | Director | 31 Dec 1992 | 14 Jul 2006 | British | 94 years |
| John Matthew Birch | Director | 26 Mar 2008 | 22 Oct 2012 | British | 51 years |
| John Ritblat | Director | 31 Dec 1992 | 31 Dec 2006 | British | 91 years |
| John Terence Rogers | Director | 10 Feb 2009 | 19 Jul 2010 | British | 58 years |
| Lucinda Margaret Bell | Director | 14 Jul 2006 | 20 Mar 2008 | British | 62 years |
| Luke Thomas Francis | Director | 19 Jan 2017 | 22 Dec 2017 | British | 38 years |
| Michael Ian Gunston | Director | 31 Dec 1992 | 31 Jan 2007 | British | 82 years |
| Ndiana Ekpo | Secretary | 30 Apr 2009 | 6 Dec 2016 | Other | - |
| Nicholas Simon Jonathan Ritblat | Director | 1 Jul 1997 | 31 Aug 2005 | British | 65 years |
| Nigel Mark Webb | Director | 14 Jul 2006 | 20 Mar 2008 | British | 63 years |
| Nilesh Sachdev | Director | 19 Jul 2010 | 20 Mar 2014 | British | 68 years |
| Peter Courtenay Clarke | Director | 14 Jul 2006 | 16 Aug 2010 | British | 60 years |
| Peter Courtenay Clarke | Secretary | 31 Dec 1992 | 5 Sept 2000 | British | - |
| Peter Jeffrey Baguley | Director | 26 Mar 2008 | 10 Feb 2009 | British | 73 years |
| Philip Bell-brown | Director | 20 Mar 2014 | 4 Jul 2014 | British | 57 years |
| Rebecca Jane Scudamore | Secretary | 5 Sept 2000 | 30 Apr 2009 | Other | - |
| Richard Alexander Fleming | Director | 26 Mar 2008 | 11 May 2012 | British | 55 years |
| Richard John Learmont | Director | 26 Mar 2008 | 5 Jul 2010 | British | 66 years |
| Richard John Learmont | Director | 9 Aug 2013 | 2 Oct 2015 | British | 66 years |
| Robert Edward Bowden | Director | 1 Jul 1997 | 31 Dec 2007 | British | 84 years |
| Sarah Morrell Barzycki | Director | 14 Jul 2006 | 20 Mar 2008 | British | 68 years |
| Sarah Nelson | Director | 22 Dec 2016 | 14 Jan 2019 | British | 50 years |
| Simon Geoffrey Carter | Director | 28 Jan 2010 | 30 Jan 2015 | British | 51 years |
| Stephen Alan Michael Hester | Director | 7 Jan 2005 | 20 Mar 2008 | British | 66 years |
| Stephen Howard Moore | Director | 2 Feb 2015 | 25 Nov 2016 | British | 40 years |
| Stephen Lionel Kalman | Director | 31 Dec 1992 | 16 Jul 1999 | British | 87 years |
| Timothy Andrew Roberts | Director | 14 Jul 2006 | 20 Mar 2008 | British | 62 years |
| Vincent John Prior | Director | 22 Oct 2012 | 17 Oct 2014 | British | 69 years |
| William Stephen Atkinson | Director | 19 Oct 2017 | 3 Jul 2018 | British | 43 years |