| Alan Orsich | Director | 14 May 1993 | 23 Nov 1993 | British | 93 years |
| Alexander Siu Kee Au | Director | 15 Jun 1998 | 30 Jul 1998 | British Citizen | 80 years |
| Alun Michael Guest Rees | Director | 30 Jul 2004 | 30 Apr 2016 | British | 70 years |
| Amanda Jane Mellor | Secretary | 23 Jan 2020 | 23 Dec 2021 | - | - |
| Andrew Nigel Halford | Director | 1 Jul 2014 | 2 Jan 2024 | British | 67 years |
| Annemarie Verna Florence Durbin | Secretary | 23 Oct 2007 | 31 Dec 2015 | British New Zealand | - |
| Bryan Kaye Sanderson | Director | 8 May 2003 | 20 Nov 2006 | British | 86 years |
| Byron Elmer Grote | Director | 1 Apr 2019 | 12 Nov 2020 | American | 78 years |
| Carlson Tong | Director | 1 Apr 2019 | 8 Dec 2022 | British | 72 years |
| Charles Bennett Brown | Secretary | 14 Oct 2005 | 30 Sept 2006 | British | - |
| Christine Elizabeth Hubbard | Secretary | 5 Apr 1995 | 19 Jan 1996 | British | - |
| Christine Mary Hodgson | Director | 1 Apr 2019 | 30 Jun 2020 | British | 62 years |
| Christine Mary Hodgson | Director | 21 Sept 2022 | 31 Jan 2023 | British | 62 years |
| Christopher Avedis Keljik | Director | 7 May 1999 | 5 May 2005 | British | 78 years |
| Christopher Norman Anthony Castleman | Director | 1 Dec 1991 | 30 Jun 2001 | British | 85 years |
| David George Moir | Director | 1 Jan 1993 | 18 Mar 2000 | British | 86 years |
| David John Brimacombe | Secretary | 18 Mar 2003 | 23 Sept 2003 | British | - |
| David Peter Brougham | Director | 1 Jan 1993 | 21 Apr 1998 | British | 86 years |
| David Philbrick Conner | Director | 1 Apr 2019 | 8 Dec 2022 | American | 78 years |
| David Tang | Director | 12 Jun 2019 | 9 May 2024 | American | 71 years |
| David William Wright | Secretary | 6 Sept 1993 | 31 Mar 1995 | British | - |
| Evan Mervyn Davies | Director | 16 Dec 1997 | 18 Dec 2006 | British | 74 years |
| Fred Clark Enlow | Director | 1 Jul 1998 | 31 Aug 2000 | American | 86 years |
| Gareth Richard Bullock | Director | 6 Jan 2003 | 1 May 2010 | British | 73 years |
| Gay Huey Evans | Director | 1 Apr 2019 | 29 Feb 2024 | American | 72 years |
| Gaynor Jill Welch | Secretary | 31 Dec 1991 | 21 Apr 1995 | British | - |
| George Malcolm Williamson | Director | 14 May 1993 | 30 Sept 1998 | British | 87 years |
| Gordon Andrew Bentley | Secretary | 21 Apr 1995 | 10 Apr 1997 | British | - |
| Gordon Andrew Bentley | Secretary | 3 Aug 2001 | 18 Mar 2003 | British | - |
| Gurvirendra Singh Talwar | Director | 22 Apr 1997 | 28 Nov 2001 | Indian | 78 years |
| Helene Yuk Hing Li | Secretary | 25 Sept 2019 | 31 Oct 2019 | - | - |
| Ian Lawrence Sayers | Secretary | 26 Jan 1996 | 26 Jun 1998 | British | - |
| Jan Paul Marie Francis Verplancke | Director | 14 Jan 2013 | 31 Mar 2015 | Belgian | 63 years |
| Jasmine Mary Whitbread | Director | 1 Apr 2019 | 3 May 2023 | British | 63 years |
| Jaspal Singh Bindra | Director | 6 Aug 2007 | 30 Jun 2015 | Indian | 66 years |
| Jeremy Howard Allen | Secretary | 19 Nov 2012 | 27 Oct 2014 | British | - |
| John Mcfarlane | Director | 3 Sept 1993 | 24 Feb 1997 | British | 79 years |
| Jose Maria Vinals Iniguez | Director | 1 Apr 2019 | 8 May 2025 | Spanish | 72 years |
| Julie Bamford | Secretary | 23 Sept 2003 | 31 Dec 2009 | British | - |
| Kaikhushru Shiavax Nargolwala | Director | 7 May 1999 | 6 Sept 2007 | Singaporean | 76 years |
| Lorraine Elizabeth Young | Secretary | 26 Jun 1998 | 3 Aug 2001 | British | - |
| Louis Chi-yan Cheung | Director | 1 Apr 2019 | 25 Mar 2020 | British | 63 years |
| Mark Smith | Director | 1 Mar 2016 | 31 Dec 2022 | British | 65 years |
| Michael Bernard Denoma | Director | 12 May 2000 | 1 Jun 2008 | American | 70 years |
| Michael James Green | Director | 25 Jun 1996 | 11 May 2000 | British | 80 years |
| Michelle Amey | Secretary | 27 Oct 2014 | 23 Jan 2020 | British | - |
| Naguib Kheraj | Director | 1 Apr 2019 | 30 Apr 2022 | British | 62 years |
| Ngozi Okonjo-iweala | Director | 1 Apr 2019 | 28 Feb 2021 | Nigerien | 72 years |
| Patrick John Gillam | Director | 14 May 1993 | 8 May 2003 | British | 93 years |
| Peter Alexander Sands | Director | 14 May 2002 | 10 Jun 2015 | British | 64 years |
| Peter Anthony Wood | Director | 14 May 1993 | 24 Feb 2000 | British | 83 years |
| Peter Nigel Kenny | Director | 7 Oct 1999 | 30 Apr 2002 | British | 78 years |
| Peter Tung Shun Wong | Director | 25 Jan 2002 | 19 Nov 2004 | British | 75 years |
| Philippe Marcel Etienne Paillart | Director | 7 Aug 1995 | 30 Jun 1998 | French | 75 years |
| Richard Frank Goulding | Director | 14 Jan 2013 | 1 Jul 2015 | Irish | 67 years |
| Richard Henry Meddings | Director | 16 Nov 2002 | 30 Jun 2014 | British | 68 years |
| Richard Jonathan Beaver Stein | Director | 14 May 1993 | 14 May 1994 | British | 92 years |
| Robin Ann Lawther | Director | 8 Dec 2022 | 30 Dec 2024 | American | 65 years |
| Scott David Corrigan | Secretary | 30 Dec 2021 | 5 May 2022 | - | - |
| Stefano Paolo Bertamini | Director | 1 Jun 2008 | 31 Mar 2014 | Australian | 62 years |
| Terry Charles Skippen | Secretary | 19 Sept 2011 | 19 Nov 2012 | British | - |
| Timothy John Miller | Director | 26 Nov 2004 | 1 Apr 2013 | British | 69 years |
| Tracy Jayne Clarke | Director | 14 Jan 2013 | 31 Dec 2020 | British | 59 years |
| Viswanthan Shankar | Director | 1 May 2010 | 30 Jun 2015 | Singaporean | 68 years |
