| Alain Henri Pierre Dromer | Director | 1 Feb 2001 | 30 Mar 2007 | French | 72 years |
| Alexa Jane Coates | Director | 20 Mar 2012 | 20 Feb 2015 | British | 56 years |
| Alexa Lam Cheung | Director | 1 May 2016 | 30 Sept 2018 | Chinese | 73 years |
| Annabel Spring | Director | 5 May 2021 | 31 Jan 2022 | Australian | 56 years |
| Anthony James Dunsford | Director | 26 Apr 1991 | 28 Jan 1993 | British | 77 years |
| Anthony Philip Hope | Director | 6 Oct 2003 | 1 Nov 2006 | British | 79 years |
| Antonio Simoes | Director | 4 Dec 2018 | 6 May 2020 | British | 51 years |
| Bernard Harry Asher | Director | 28 Apr 1992 | 19 Jan 1998 | British | 90 years |
| Blair Chilton Pickerell | Director | 6 Oct 2003 | 31 May 2007 | American | 70 years |
| Bryce Dryden Mcdonnell | Director | 27 Nov 1998 | 31 Oct 2002 | New Zealand | 73 years |
| Charlie Nunn | Director | 4 Dec 2018 | 2 Dec 2020 | British | 55 years |
| Christophe Raoul Fernand De Backer | Director | 19 Sept 2016 | 14 Apr 2021 | French | 64 years |
| Christopher Anthony Ewin | Director | 1 Aug 1998 | 29 Aug 2003 | British | 69 years |
| Christopher James Newton | Director | 28 Jan 1993 | 24 Apr 1997 | British | 85 years |
| Christopher Spencer Cheetham | Director | 28 Jul 2003 | 23 Sept 2019 | British | 71 years |
| Danielle Pass | Secretary | 18 Apr 2018 | 14 Jan 2020 | - | - |
| David Henry Burnett | Director | 15 Sept 2003 | 18 Aug 2006 | British | 75 years |
| Dean Robert Buckley | Director | 6 Oct 2003 | 30 Oct 2007 | British | 66 years |
| Edmund Richard Stokes | Director | 30 Jun 2011 | 27 Mar 2015 | British | 57 years |
| Edmund Richard Stokes | Director | 25 Feb 2020 | 24 Oct 2025 | British | 57 years |
| Elizabeth Anne Hobley | Secretary | 22 Jul 1999 | 13 Mar 2001 | British | - |
| George Andrew Efthimiou | Director | 1 Sept 2003 | 10 Feb 2020 | British | 63 years |
| George Cardona | Director | 1 Aug 1994 | 3 Dec 1996 | British | 75 years |
| Helen Docherty | Secretary | 27 Mar 2013 | 7 Oct 2013 | - | - |
| Ian Christopher Cotterill | Director | 23 Jul 1996 | 12 Sept 2003 | British | 78 years |
| Ian Cowan Ferguson | Director | 28 Jan 1993 | 8 Feb 1996 | British | 69 years |
| Jennifer Rosalind Paterson | Director | 1 Sept 2015 | 31 Jan 2022 | British | 73 years |
| Joanna Mary Munro | Director | 28 Dec 2007 | 20 May 2011 | British | 64 years |
| Joanna Mary Munro | Director | 1 Mar 2012 | 6 Jun 2017 | British | 64 years |
| John Francis Trueman | Director | 5 Nov 2012 | 31 Jan 2022 | British | 83 years |
| John Michael Flint | Director | 5 Nov 2009 | 31 Dec 2011 | British | 58 years |
| John Roland Lyndhurst Braddell | Director | 9 Feb 1993 | 31 May 1994 | British | 77 years |
| John William Babtie | Director | 26 Apr 1991 | 1 Sept 1992 | British | 78 years |
| John William Babtie | Director | 28 Apr 1992 | 3 Sept 1992 | British | 78 years |
| Kate Elizabeth Hudson | Secretary | 24 Jul 2012 | 27 Mar 2013 | - | - |
| Katherine O'connell | Secretary | 29 Jan 2015 | 10 May 2016 | - | - |
| Kerry Victoria Higgins | Secretary | 10 May 2016 | 16 Mar 2018 | - | - |
| Kevin John Gregory | Director | 28 Jan 1993 | 25 Mar 1998 | British | 69 years |
| Kevin John Gregory | Secretary | 1 Jan 1997 | 1 May 1997 | British | - |
| Louisa Jane Jenkinson | Secretary | 16 Sept 2002 | 3 Jun 2008 | British | - |
| Mala Singh Dhillon | Secretary | 6 May 1993 | 31 Dec 1996 | British | - |
| Mark Seumas Mccombe | Director | 1 May 2007 | 5 Nov 2009 | British | 60 years |
| Mary Josephine Margaret Mcnalty | Secretary | 7 Oct 2013 | 31 Dec 2014 | - | - |
| Michael David Watt Kay | Director | 7 Apr 2010 | 7 Dec 2011 | British | 66 years |
| Nicola Suzanne Black | Secretary | 13 Mar 2001 | 16 Sept 2002 | British | - |
| Nigel Barker | Secretary | 1 May 1997 | 30 Nov 1998 | British | - |
| Nigel Selby Tulloch | Director | 28 Apr 1992 | 30 Sept 1992 | British | 80 years |
| Nina Beth Shapiro | Director | 3 May 2019 | 31 Jan 2022 | American | 78 years |
| Nuno Goncalo De Macedo E Santana De Almeida Matos | Director | 5 May 2021 | 25 Jan 2024 | Portuguese | 59 years |
| Paul Charles Guidone | Director | 30 Mar 1994 | 31 Jan 2001 | American | 69 years |
| Paul Man Yiu Chow | Director | 20 Dec 2001 | 30 Apr 2003 | British | 80 years |
| Paul Richard Hand | Director | 9 Oct 2006 | 26 Sept 2007 | British | 62 years |
| Peter Anthony Letley | Director | 4 Feb 1993 | 23 Jul 1996 | British | 81 years |
| Peter Charles Dugdale | Director | 4 Feb 1993 | 25 Feb 2002 | British | 73 years |
| Peter John Reid | Director | 27 Jun 2013 | 27 Mar 2015 | British | 64 years |
| Peter William Boyles | Director | 12 Apr 2013 | 29 Sept 2014 | British | 71 years |
| Peter William Boyles | Director | 26 Mar 2015 | 4 Dec 2018 | British | 71 years |
| Richard Brian Marr Heyworth | Director | 30 Jun 2011 | 27 Mar 2015 | British | 61 years |
| Richard David Walter Haas | Secretary | 26 Apr 1991 | 6 May 1993 | British | - |
| Robert Eldon Duggins | Director | 1 Aug 1994 | 1 Nov 1998 | American | 83 years |
| Robert Henry Wilson | Director | 26 Apr 1991 | 28 Jan 1993 | British | 87 years |
| Robert Hugh Musgrove | Secretary | 3 Jun 2008 | 5 Nov 2009 | British | - |
| Roy Selwyn Brooks | Director | 28 Apr 1992 | 30 Nov 1996 | British | 90 years |
| Samir Assaf | Director | 28 Dec 2007 | 24 Jun 2011 | French | 66 years |
| Sarah Caroline Gott | Secretary | 5 Nov 2009 | 24 Jul 2012 | British | - |
| Shaun Kevin Bryant | Secretary | 1 Dec 1998 | 22 Jul 1999 | British | - |
| Simon James Williams | Director | 1 Mar 2012 | 31 Dec 2014 | British | 68 years |
| Sridhar Chandrasekharan | Director | 1 Jan 2012 | 23 Sept 2019 | Indian | 56 years |
| Stanley David Vyner | Director | 1 Aug 1994 | 14 Dec 1995 | British | 76 years |
| Stephen Colin Moss | Director | 26 Mar 2015 | 6 Feb 2020 | British | 59 years |
| Stephen Keith Green | Director | 20 Jan 1998 | 5 Jul 2006 | British | 78 years |
| Stephen Lofthouse | Director | 28 Apr 1992 | 11 Jun 1992 | British | 81 years |
| Stuart Kingsley White | Director | 29 Feb 2024 | 1 Apr 2025 | British | 55 years |
| Stuart Phillip Parkinson | Director | 29 Sept 2014 | 27 Mar 2015 | British | 55 years |
| Surendranath Ravi Rosha | Director | 31 Jan 2022 | 24 Feb 2025 | Indian | 58 years |
| Susie Rebecca Babani | Director | 27 Nov 1998 | 1 Sept 2000 | British | 66 years |
| Taylan Turan | Director | 5 May 2021 | 25 Feb 2025 | British,turkish | 49 years |
| Thomas Carlton Iii Thompson | Director | 4 Feb 1993 | 12 Dec 1995 | American | 74 years |
| Timothy William O'brien | Director | 28 Apr 1992 | 4 Feb 1993 | British | 79 years |
| Yi Chien David Liao | Director | 5 May 2021 | 31 Jan 2022 | Hong Konger | 54 years |