| Andrew Marc Jones | Director | 14 Jul 2006 | 6 Nov 2009 | British | 57 years |
| Anthony Braine | Director | 18 Dec 2006 | 31 Jul 2014 | British | 68 years |
| Anthony Braine | Secretary | 5 Mar 2000 | 31 Jul 2014 | British | - |
| Anthony Joseph John Bochenski | Director | 1 Feb 1993 | 5 Mar 2000 | British | 74 years |
| Benjamin Toby Grose | Director | 13 Jul 2012 | 2 Oct 2014 | British | 56 years |
| Bruce Michael James | Director | 4 May 2018 | 4 May 2018 | British | 58 years |
| Christopher Michael John Forshaw | Director | 25 Aug 2000 | 5 Apr 2017 | British | 76 years |
| Claire Ann Barber | Director | 2 Oct 2014 | 4 May 2018 | British | 51 years |
| Cyril Metliss | Director | 5 Mar 2000 | 14 Jul 2006 | British | 102 years |
| Graham Charles Roberts | Director | 26 Feb 2002 | 30 Jun 2011 | British | 67 years |
| Jean-marc Vandevivere | Director | 13 Jul 2012 | 31 Jan 2016 | French | 48 years |
| John Alexander Mercer | Director | 1 Feb 1993 | 5 Mar 2000 | British | 86 years |
| John Harry Weston Smith | Director | 5 Mar 2000 | 14 Jul 2006 | British | 93 years |
| John Ritblat | Director | 5 Mar 2000 | 31 Dec 2006 | British | 90 years |
| John Sidney Hammond | Director | 1 Feb 1993 | 3 Feb 2000 | British | 81 years |
| John Sydney Brown | Director | 1 Feb 1993 | 28 May 1996 | British | 93 years |
| Lucinda Margaret Bell | Director | 14 Jul 2006 | 19 Jan 2018 | British | 61 years |
| Nicholas Simon Jonathan Ritblat | Director | 5 Mar 2000 | 31 Aug 2005 | British | 64 years |
| Nigel Mark Webb | Director | 14 Jul 2006 | 4 May 2018 | British | 62 years |
| Peter Courtenay Clarke | Director | 14 Jul 2006 | 16 Aug 2010 | British | 59 years |
| Raymond Nixon | Secretary | 1 Feb 1993 | 5 Mar 2000 | British | - |
| Robert Edward Bowden | Director | 5 Mar 2000 | 31 Dec 2007 | British | 83 years |
| Sarah Morrell Barzycki | Director | 14 Jul 2006 | 30 Mar 2018 | British | 67 years |
| Shenol Adam | Director | 5 Mar 2000 | 27 Feb 2001 | British | 79 years |
| Simon Geoffrey Carter | Director | 13 Jul 2012 | 30 Jan 2015 | British | 50 years |
| Stephen Alan Michael Hester | Director | 7 Jan 2005 | 15 Nov 2008 | British | 65 years |
| Stephen Paul Smith | Director | 13 Jul 2012 | 31 Mar 2013 | British | 72 years |
| Timothy Andrew Roberts | Director | 14 Jul 2006 | 4 May 2018 | British | 61 years |
| Victoria Margaret Penrice | Director | 1 Aug 2014 | 29 Apr 2015 | British | 61 years |
| Victoria Margaret Penrice | Secretary | 1 Aug 2014 | 29 Apr 2015 | - | - |