| Alan Sinclair Devine | Director | 19 Sept 2013 | 20 Jun 2016 | British | 65 years |
| Andrew Charles Fisher | Director | 6 Mar 2000 | 28 Feb 2002 | British | 64 years |
| Andrew Glen Scott | Director | 24 Nov 2020 | 30 Sept 2021 | British | 50 years |
| Angela Mary Cunningham | Secretary | 1 Nov 2005 | 19 Jan 2011 | British | - |
| Bernard Philip Horn | Director | 27 Sept 1992 | 24 Sept 1997 | British | 79 years |
| Byron Kenneth Coombs | Director | 29 Aug 2003 | 2 Aug 2004 | British | 65 years |
| Chalmers Carr | Director | 1 Jun 1999 | 30 Jun 2003 | British | 88 years |
| Christopher David Barnes Kyle | Director | 7 Aug 2006 | 11 Nov 2008 | British | 60 years |
| Christopher Malcolm Horne | Secretary | 27 Sept 1992 | 11 Sept 1996 | British | - |
| Claire Michelle Benning | Secretary | 11 Apr 2014 | 12 Aug 2014 | - | - |
| Claire Middleton | Director | 10 Dec 2021 | 13 Jun 2024 | British | 40 years |
| Daniel John Putnam | Secretary | 27 Apr 2012 | 21 Jun 2013 | - | - |
| David Burdett Money-coutts | Director | 27 Sept 1992 | 30 Sept 1993 | British | 94 years |
| David Went | Director | 1 Jun 1994 | 1 Nov 1997 | Irish | 78 years |
| Denis Marsden Child | Director | 27 Sept 1992 | 7 May 1997 | British | 99 years |
| Ewen Alastair John Fergusson | Director | 28 May 1993 | 1 Jun 1999 | British | 93 years |
| Gayle Elaine Schumacher | Director | 10 Feb 2014 | 1 Oct 2015 | British | 66 years |
| Gloria Jayne Glennie | Secretary | 29 Sept 1998 | 1 Jun 1999 | British | - |
| Glyn Parry Jones | Director | 30 Oct 1997 | 10 Jul 2000 | British | 73 years |
| Gordon Francis Pell | Director | 8 Apr 2002 | 29 Aug 2003 | British | 75 years |
| Grant Allen Parkinson | Director | 1 Oct 2015 | 13 Jun 2017 | New Zealander | 53 years |
| Helen Margaret Cockroft | Director | 2 Aug 2004 | 31 Mar 2013 | British | 72 years |
| Hugh Leathley Chater | Director | 19 Sept 2013 | 28 Apr 2016 | British | 65 years |
| Ian Christopher Wright | Director | 1 May 2018 | 31 Jul 2020 | British | 52 years |
| Ian Michael Merriman | Director | 17 Mar 2009 | 12 Oct 2010 | British | 63 years |
| Ian Ross Farnsworth | Director | 9 Jan 1995 | 30 Jun 1995 | British | 87 years |
| Jacqueline Ann Patterson | Secretary | 18 Aug 2014 | 12 Dec 2014 | - | - |
| Jeremy Wright | Director | 2 Aug 2004 | 26 Feb 2008 | British | 63 years |
| Joanna Eveline Kaye | Director | 19 Sept 2013 | 8 Nov 2013 | British | 53 years |
| John Duncan Baines | Director | 2 Dec 2002 | 2 Aug 2004 | British | 63 years |
| John Freeman Collins | Director | 19 Sept 2013 | 12 Apr 2016 | British | 58 years |
| John Martin Gibbons Iii | Director | 26 Feb 2008 | 19 Mar 2009 | American | 66 years |
| John Martin Owen | Director | 9 Jan 1995 | 20 Jan 1997 | United Kingdom | 79 years |
| Joseph Damian Kissane | Director | 2 Aug 2004 | 7 Aug 2006 | Irish | 66 years |
| Kevin Brown | Director | 19 Sept 2013 | 30 Apr 2014 | British | 56 years |
| Leslie Gent | Director | 8 Mar 2017 | 19 Jun 2024 | British | 68 years |
| Marina Louise Thomas | Secretary | 1 Aug 2004 | 1 Nov 2005 | British | - |
| Mark Simon Pedley | Director | 3 Jul 2017 | 14 Oct 2024 | British | 53 years |
| Neil Christopher Dolby | Director | 10 Jul 2000 | 27 Jan 2010 | British | 59 years |
| Nicholas Assheton | Director | 27 Sept 1992 | 21 Nov 1994 | British | 91 years |
| Patricia Lynne Webster | Secretary | 27 Sept 2013 | 11 Apr 2014 | - | - |
| Paul Caron | Director | 29 Nov 1995 | 3 Jun 1998 | American | 90 years |
| Paul Myners | Director | 7 May 1997 | 6 Mar 2000 | British | 77 years |
| Paul Vernon Wright | Director | 1 Jun 1999 | 8 Apr 2002 | British | 71 years |
| Philip Benjamin Hunt | Director | 25 Nov 2015 | 3 Jul 2025 | British | 57 years |
| Philip David Basil | Director | 22 Dec 2009 | 20 May 2010 | British | 61 years |
| Rachel Elizabeth Fletcher | Secretary | 19 Jan 2011 | 27 Apr 2012 | - | - |
| Rachel Sarah Baxter | Director | 29 Apr 2016 | 21 Mar 2018 | British | 43 years |
| Reto Fiorenzo Domeniconi | Director | 12 Apr 1995 | 3 Jun 1998 | Swiss | 89 years |
| Richard Steven Barr | Director | 26 Jun 2024 | 31 Oct 2025 | British | 40 years |
| Robert Dyllan Hook | Director | 12 Oct 2010 | 20 May 2013 | British | 55 years |
| Robert Earl Stemmons | Secretary | 11 Sept 1996 | 3 Jun 1998 | Usa | - |
| Robert James Whittick | Director | 10 Nov 2008 | 17 Mar 2009 | British | 58 years |
| Roger Flemington | Director | 27 Sept 1992 | 13 Sept 1994 | British | 93 years |
| Ruth Nicholson | Secretary | 1 Jun 1999 | 14 Mar 2000 | British | - |
| Sally Anne Doyle | Secretary | 14 Mar 2000 | 1 Aug 2004 | British | - |
| Samantha Helen Linsley | Secretary | 3 Jun 1998 | 30 Sept 1998 | British | - |
| Samuel Leland Dill | Director | 9 Jan 1995 | 3 Jun 1998 | Usa | 95 years |
| Sharare Wei Hau | Director | 22 Dec 2009 | 14 May 2010 | British | 51 years |
| Stuart Clarke Macbride | Director | 21 Mar 2018 | 14 Oct 2024 | British | 48 years |
| Sydney Lipworth | Director | 9 Jan 1995 | 1 Jun 1999 | British | 94 years |
| William Kenneth Enderby | Director | 29 Aug 2003 | 2 Aug 2004 | British | 72 years |