| Alan Matthew Thomson | Director | 18 Apr 2013 | 31 Oct 2014 | British | 79 years |
| Alan Mcalpine Keir | Director | 1 Oct 2013 | 1 Sept 2015 | British | 67 years |
| Alexander Andrew Flockhart | Director | 22 Jul 2010 | 31 Jul 2012 | British | 74 years |
| Alison Clare Reed | Director | 24 Apr 1996 | 26 May 2004 | British | 69 years |
| Alison Sara Campbell | Secretary | 1 Mar 2021 | 1 Jan 2023 | - | - |
| Annabel Fitzgerald Spring | Director | 8 Apr 2024 | 5 Dec 2024 | Australian | 55 years |
| Anthony Robin Dominic Monro-davis | Director | 1 Jan 2004 | 25 Apr 2013 | British | 85 years |
| Antonio Pedro Dos Santos Simoes | Director | 1 Feb 2012 | 17 Sept 2018 | Portuguese | 50 years |
| Antony John Hales | Director | 24 Jun 1994 | 23 May 2001 | British | 77 years |
| Archibald William Forster | Director | 8 May 1992 | 27 May 1998 | British | 97 years |
| Bernard Harry Asher | Director | 8 May 1992 | 28 Feb 1998 | British | 89 years |
| Brian Gerald Pearse | Director | 8 May 1992 | 27 Jan 1995 | British | 92 years |
| Brian Lees Goldthorpe | Director | 8 May 1992 | 16 Sept 1992 | British | 92 years |
| Brian Robertson | Director | 3 Dec 2010 | 30 Sept 2013 | British | 71 years |
| Charles Dorsey Mackay | Director | 12 Nov 1992 | 31 Dec 1993 | British | 85 years |
| Charles Francis Wiener De Croisset | Director | 1 Sept 2000 | 25 Feb 2004 | French | 82 years |
| Charles Henri Filippi | Director | 1 Sept 2000 | 31 Dec 2008 | French | 73 years |
| Charles Miller Smith | Director | 1 Jan 1994 | 31 May 1996 | British | 86 years |
| Charles Wilfrid Newton | Director | 11 Dec 1992 | 28 Apr 1999 | British | 97 years |
| Christopher Michael Stuart Jones | Director | 1 Aug 2001 | 29 Apr 2008 | British | 81 years |
| Colin Marsh Marshall | Director | 8 May 1992 | 25 Mar 1994 | British | 92 years |
| Colin William Bell | Director | 22 Feb 2021 | 31 Dec 2024 | British | 57 years |
| David Charles Budd | Director | 9 May 2005 | 24 Feb 2011 | British | 72 years |
| David Michael Watts | Director | 15 Dec 2021 | 31 Oct 2023 | British | 59 years |
| David William Baker | Director | 1 Nov 1996 | 31 Dec 2002 | British | 83 years |
| David William Lister | Director | 1 Sept 2015 | 6 Aug 2018 | British | 67 years |
| Denise Mary Holt | Director | 1 Feb 2011 | 6 Aug 2018 | British | 76 years |
| Detta O'cathain | Director | 8 May 1992 | 26 May 1993 | British | 87 years |
| Dyfrig Dafydd Joseff John | Director | 1 Jan 2003 | 29 Jun 2009 | British | 75 years |
| Eric John Pountain | Director | 8 May 1992 | 9 Oct 1992 | British | 92 years |
| Geoffrey Maitland Smith | Director | 8 May 1992 | 23 Dec 1996 | British | 92 years |
| George Ernest Loudon | Director | 8 May 1992 | 31 Jul 1992 | Dutch | 83 years |
| Harry Anthony Rose | Director | 28 May 1997 | 25 May 2005 | British | 85 years |
| Harry Eugene Lockhart | Director | 8 May 1992 | 31 Aug 1992 | American | 76 years |
| Herbert H Jacobi | Director | 27 Jan 1995 | 27 May 1998 | United States | 91 years |
| Ian Bruce Marshall | Secretary | 26 Jun 1996 | 26 May 2004 | British | - |
| Jacques Fleurant | Director | 7 Aug 2018 | 30 Sept 2021 | Canadian | 58 years |
| James Alasdair Emmett | Director | 17 Sept 2018 | 29 Feb 2020 | British | 54 years |
| James Coyle | Director | 3 Aug 2015 | 6 Aug 2018 | British | 69 years |
| James William Leng | Director | 12 Oct 2010 | 31 Dec 2013 | British | 80 years |
| Jasminder Singh | Director | 25 Jan 2001 | 20 Apr 2007 | British | 74 years |
| John Dudley Fishburn | Director | 28 May 2003 | 1 May 2009 | British | 79 years |
| John Estmond Strickland | Director | 1 Jan 1993 | 31 May 1996 | British | 86 years |
| John Francis Devaney | Director | 25 Mar 1994 | 24 May 2000 | British | 79 years |
| John Francis Trueman | Director | 29 Sept 2004 | 31 Dec 2022 | British | 82 years |
| John Hume Mckenzie | Secretary | 26 May 2004 | 31 Mar 2014 | British | - |
| John Reginald Hartnell Bond | Director | 1 Jan 1993 | 31 Dec 2004 | British | 84 years |
| John Robin Skae | Secretary | 8 May 1992 | 31 Dec 1993 | British | - |
| John Towers | Director | 5 Apr 1994 | 31 Oct 1996 | British | 77 years |
| Johnson Daniel Garner | Director | 20 Dec 2010 | 31 Oct 2012 | British | 56 years |
| Jonathan Richard Symonds | Director | 14 Apr 2014 | 6 Aug 2018 | British | 66 years |
| Keith Roderick Whitson | Director | 28 Jul 1992 | 28 May 2003 | British | 82 years |
| Loren Wulfsohn | Secretary | 1 Jan 2018 | 30 Apr 2020 | - | - |
| Lynne Stuart | Secretary | 7 Oct 2024 | 12 Jun 2025 | - | - |
| Mary Elizabeth Marsh | Director | 1 Jan 2009 | 17 May 2022 | British | 79 years |
| Michael Francis Geoghegan | Director | 1 Jan 2004 | 20 Oct 2010 | British | 72 years |
| Nicola Suzanne Black | Secretary | 1 Apr 2014 | 1 Jan 2018 | - | - |
| Norma Adrienne Dove-edwin | Director | 28 Oct 2021 | 24 Apr 2025 | British | 59 years |
| Nuno Goncalo De Macedo E Santana De Almeida Matos | Director | 1 Mar 2020 | 23 Feb 2021 | Portuguese | 58 years |
| Olivier Philip Oakley-white | Secretary | 1 May 2023 | 7 Oct 2024 | - | - |
| Patrick Michael Meaney | Director | 8 May 1992 | 16 Jul 1992 | British | 100 years |
| Paul Anthony Thurston | Director | 1 Jun 2008 | 31 Dec 2011 | British | 72 years |
| Peter Evelyn Leslie | Director | 8 May 1992 | 9 Oct 1992 | British | 94 years |
| Peter Ingram Walters | Director | 8 May 1992 | 31 Mar 1994 | British | 94 years |
| Peter Michael Shawyer | Director | 1 Nov 2004 | 6 Jan 2014 | British | 75 years |
| Peter William Boyles | Director | 22 Jul 2010 | 10 Dec 2012 | British | 70 years |
| Philip Bruce Jockelson | Secretary | 1 May 2020 | 28 Feb 2021 | - | - |
| Philip David Miller | Secretary | 1 Jan 2023 | 30 Apr 2023 | - | - |
| Philippe Jacques Claude Houze | Director | 1 Oct 2010 | 26 Apr 2012 | French | 78 years |
| Piraye Antika | Director | 1 Jul 2011 | 31 Oct 2014 | Turkish | 65 years |
| Ralph Gordon Barber | Secretary | 1 Jan 1994 | 26 Jun 1996 | British | - |
| Richard Delbridge | Director | 8 May 1992 | 30 Nov 1995 | British | 83 years |
| Richard Michael James Orgill | Director | 1 Apr 1994 | 31 Oct 2001 | British | 87 years |
| Roger Emerson | Director | 25 Sept 1996 | 28 May 2003 | British | 76 years |
| Rosemary Elisabeth Scudamore Martin | Director | 29 Apr 2005 | 27 Apr 2016 | British | 65 years |
| Samir Assaf | Director | 28 Mar 2014 | 27 Apr 2016 | French | 65 years |
| Sean Patrick O'sullivan | Director | 7 Aug 2007 | 31 Jan 2011 | Canadian | 69 years |
| Simon Nigel Cooper | Director | 18 Apr 2013 | 17 Dec 2015 | British | 58 years |
| Simon William De Mussenden Leathes | Director | 17 May 2012 | 21 Apr 2017 | British | 77 years |
| Stephen Colin Moss | Director | 24 Apr 2020 | 23 Feb 2021 | British | 58 years |
| Stephen Keith Green | Director | 1 Dec 1995 | 3 Dec 2010 | British | 77 years |
| Stephen Paul O'connor | Director | 17 May 2018 | 24 Apr 2025 | British | 64 years |
| Stuart Thomson Gulliver | Director | 1 Sept 2006 | 31 Dec 2010 | British | 66 years |
| Thierry Bernard Moulonguet | Director | 27 Jul 2012 | 5 Sept 2018 | French | 74 years |
| Thomas Jefferson Coleman Cunningham | Director | 8 May 1992 | 9 Oct 1992 | American | 83 years |
| William Purves | Director | 8 May 1992 | 27 May 1998 | British | 94 years |
| William Robert Patrick Dalton | Director | 1 Apr 1998 | 31 Dec 2003 | Canadian/irish | 82 years |
| Yukiko Omura | Director | 17 May 2018 | 24 Apr 2025 | Japanese | 70 years |