| Algimantas Martschukat | Director | 15 Apr 1994 | 28 Sept 1998 | German | 88 years |
| Andrew Marc Jones | Director | 14 Jul 2006 | 5 Jun 2007 | British | 58 years |
| Antony William Bones | Director | 5 Jun 2007 | 17 Dec 2010 | British | 72 years |
| Barry Chester Winfield | Director | 29 Sept 1993 | 25 Nov 1994 | British | 78 years |
| Christopher Michael John Forshaw | Secretary | 14 Dec 1992 | 14 Dec 1995 | British | - |
| Cyril Metliss | Director | 3 Apr 1996 | 16 Jul 1999 | British | 103 years |
| David Evan Pugh | Director | 14 Dec 1992 | 5 Sept 1994 | British | 81 years |
| David Evan Pugh | Director | 5 Sept 1994 | 28 Sept 1998 | British | 81 years |
| David Geoffrey Gardiner | Director | 17 Dec 2010 | 31 Oct 2021 | British | 62 years |
| David John Camp | Director | 19 Apr 1994 | 15 Jan 1996 | British | 69 years |
| David Lea Hummel | Director | 19 Apr 1994 | 5 Sept 1994 | British | 78 years |
| Eugene Francis Doyle | Director | 19 Apr 1994 | 31 Mar 1996 | Irish | 69 years |
| John Harry Weston Smith | Director | 3 Apr 1996 | 14 Jul 2006 | British | 94 years |
| John Harvey Iddiols | Director | 3 Apr 1996 | 5 Jun 2007 | British | 80 years |
| Lucinda Margaret Bell | Director | 14 Jul 2006 | 5 Jun 2007 | British | 62 years |
| Matthew Pinsent | Director | 21 Apr 2010 | 22 May 2015 | British | 55 years |
| Michael Ian Gunston | Director | 11 Feb 1999 | 31 Jan 2007 | British | 82 years |
| Michael John Tiplady | Director | 14 Dec 1992 | 28 Sept 1998 | British | 71 years |
| Ndiana Ekpo | Secretary | 30 Apr 2009 | 6 Dec 2016 | Other | - |
| Nicholas Keith Bates | Director | 16 Jul 1999 | 31 Mar 2010 | British | 64 years |
| Nicholas Simon Jonathan Ritblat | Director | 11 Feb 1999 | 31 Aug 2005 | British | 65 years |
| Nigel Mark Webb | Director | 14 Jul 2006 | 5 Jun 2007 | British | 63 years |
| Nigel Mark Webb | Director | 17 Dec 2019 | 30 Jun 2023 | British | 63 years |
| Paul Denis Rivlin | Director | 19 Apr 1994 | 14 Dec 1995 | British | 74 years |
| Paul Hughes | Secretary | 18 Oct 1995 | 31 Jan 1997 | British | - |
| Peter Courtenay Clarke | Director | 16 Jul 1999 | 5 Jun 2007 | British | 60 years |
| Peter Courtenay Clarke | Secretary | 31 Jan 1997 | 5 Sept 2000 | British | - |
| Rebecca Jane Scudamore | Secretary | 5 Sept 2000 | 30 Apr 2009 | Other | - |
| Richard Andrew John Phillips | Director | 14 Dec 1993 | 28 Sept 1998 | British | - |
| Robert Edward Bowden | Director | 11 Feb 1999 | 5 Jun 2007 | British | 84 years |
| Sarah France Csukas | Director | 12 Jan 2016 | 29 Jun 2022 | Irish | 43 years |
| Sarah Morrell Barzycki | Director | 14 Jul 2006 | 5 Jun 2007 | British | 68 years |
| Shenol Adam | Director | 14 Dec 1992 | 27 Feb 2001 | British | 80 years |
| Stephen Alan Michael Hester | Director | 7 Jan 2005 | 5 Jun 2007 | British | 66 years |
| Stephen Lionel Kalman | Director | 11 Feb 1999 | 16 Jul 1999 | British | 87 years |
| Stephen Paterson | Director | 5 Jun 2007 | 15 Dec 2015 | British | 75 years |
| Timothy Andrew Roberts | Director | 14 Jul 2006 | 1 Apr 2019 | British | 62 years |