| Alex Dorrian | Director | 1 Nov 2001 | 31 Dec 2012 | British | 80 years |
| Alexander Colin Kynaston Cresswell | Director | 1 Apr 2010 | 1 Apr 2013 | British | 63 years |
| Alexander Colin Kynaston Cresswell | Director | 30 Mar 2020 | 1 Nov 2024 | British | 63 years |
| Alexander David Beatty | Director | 6 Mar 2015 | 30 Jun 2019 | British | 67 years |
| Alistair Dickson Mcphee | Director | 1 Mar 2011 | 1 Sept 2016 | British | 68 years |
| Allan Campbell Cameron | Director | 22 Nov 2004 | 1 Jul 2005 | Usa | 80 years |
| Andrew John Low | Director | 3 Feb 2000 | 26 Oct 2001 | British | 72 years |
| Andrew Richard Bell | Director | 1 Jul 2020 | 31 Dec 2020 | British | 52 years |
| Andrew William Phillips | Director | 1 Feb 1997 | 4 May 1999 | British | 73 years |
| Antoine Jean-baptiste Lagomarsino | Director | 1 Aug 2007 | 1 Dec 2011 | British | 76 years |
| Arthur William Douglas Ludgate | Director | 22 Aug 1992 | 18 Nov 1997 | British | 84 years |
| Barton James Clarke | Director | 22 Aug 1992 | 4 May 1999 | British | 91 years |
| Brian John Marshall | Director | 4 May 1999 | 1 Sept 2000 | British | 82 years |
| Brigitte Bouquot | Director | 1 Sept 2000 | 20 Nov 2002 | French | 70 years |
| Christopher Nigel Gane | Director | 30 Jun 2003 | 1 Jul 2005 | British | 62 years |
| Christopher William Hindle | Director | 1 Aug 2023 | 14 Jul 2025 | British | 58 years |
| David Charles Lockwood | Director | 1 Apr 2010 | 1 Sept 2011 | British | 64 years |
| David Hamilton Baldwin | Director | 1 Sept 2011 | 6 Jan 2012 | British | 54 years |
| David Henry Barnes | Director | 8 Sept 2003 | 1 Jul 2005 | British | 89 years |
| David Robert Geoffrey Horne | Director | 30 Jun 2003 | 1 Aug 2007 | British | 72 years |
| David Sheppard | Director | 22 May 2000 | 8 Sept 2003 | British | 71 years |
| David Whittaker | Secretary | 22 Aug 1992 | 16 Jun 2000 | British | - |
| Dean Richard Mason | Director | 23 Aug 2010 | 6 Mar 2015 | British | 67 years |
| Denis Vincent Bernard Marie Plantier | Director | 1 Jan 2016 | 31 Jul 2019 | French | 64 years |
| Desmond Julian Walker Browne | Director | 4 May 1999 | 1 Sept 2000 | British | 81 years |
| Edward Anthony Noel Lowe | Director | 22 Aug 1992 | 24 Jul 2006 | British | 72 years |
| Edward Anthony Noel Lowe | Director | 1 Apr 2010 | 31 Dec 2014 | British | 72 years |
| Edwin Awang | Director | 5 Jan 2015 | 31 Dec 2020 | British | 64 years |
| Ewen Angus Mccrorie | Director | 1 Apr 2013 | 1 Aug 2023 | British | 68 years |
| Frederick John Cahill | Director | 24 May 1999 | 27 Jul 2001 | British | 72 years |
| Gareth Williams | Director | 10 Nov 2015 | 31 Dec 2020 | British | 50 years |
| Graham Dudley Pound | Director | 22 Aug 1992 | 1 Sept 2000 | British | 89 years |
| Guy Elie Baruchel | Director | 1 Jul 2013 | 29 Jan 2016 | French | 76 years |
| Ian Charles Prescott | Director | 1 Sept 2000 | 11 May 2001 | British | 74 years |
| Ian Michael Waite | Director | 15 Mar 2018 | 31 Dec 2020 | British | 64 years |
| James Edward Handley | Director | 1 Sept 2000 | 30 Jun 2003 | British | 75 years |
| Jean Paul Perrier | Director | 1 Jul 2005 | 31 Dec 2009 | French | 81 years |
| Jean Yves Bernard Francois Haagen | Director | 18 Sept 2000 | 1 Sept 2004 | French | 62 years |
| Jean Yves Bernard Francois Haagen | Secretary | 18 Sept 2000 | 1 Sept 2004 | French | - |
| John Albert Victor Rogers | Director | 22 Aug 1992 | 31 Mar 1994 | British | 77 years |
| John Albert Victor Rogers | Director | 18 Nov 1997 | 4 May 1999 | British | 77 years |
| John Denis Massey Collingridge | Director | 22 Aug 1992 | 31 Aug 1995 | British | 94 years |
| John Francis Howe | Director | 1 Sept 2000 | 30 Jan 2009 | British | 82 years |
| John Victor Belcher | Secretary | 16 Jun 2000 | 18 Sept 2000 | British | - |
| Justin Mark Walker | Director | 8 Jan 2014 | 5 Jan 2015 | British | 64 years |
| Karen Odey | Director | 1 Jul 2004 | 1 Jul 2005 | British | 63 years |
| Kathryn Helen Jenkins | Director | 30 Jun 2003 | 21 Apr 2017 | British | 60 years |
| Lawrence Hammond | Director | 4 Jan 2008 | 31 Dec 2013 | British | 63 years |
| Marion Elizabeth Broughton | Director | 1 Apr 2010 | 1 Jan 2016 | British | 64 years |
| Mark Barclay | Director | 1 Feb 2007 | 1 May 2008 | British | 62 years |
| Mark Newport | Director | 22 Aug 1992 | 11 Apr 2002 | British | 74 years |
| Martin Bradley | Director | 8 Mar 1996 | 4 May 1999 | British | 74 years |
| Martin Bradley | Director | 1 Sept 1999 | 3 Feb 2000 | British | 74 years |
| Nicholas Topazio | Director | 11 Apr 2002 | 31 Oct 2002 | British | 66 years |
| Pascale Annick Andree Sourisse | Director | 1 Sept 2012 | 1 Apr 2013 | French | 64 years |
| Paul Alexander Goodge | Director | 1 Apr 2010 | 3 Sept 2012 | British | 62 years |
| Paul Douglas Goodenough | Director | 22 Aug 1992 | 18 Nov 1997 | British | 90 years |
| Paul Gosling | Director | 1 Apr 2014 | 22 Sept 2025 | British | 64 years |
| Paul Watson | Director | 1 Apr 2013 | 5 Jan 2015 | British | 62 years |
| Peter John Rowley | Director | 1 Jan 2014 | 31 Aug 2015 | British | 72 years |
| Peter Kenneth Blair | Director | 4 May 1999 | 31 Jan 2000 | British | 89 years |
| Peter Lambert Rowe | Director | 22 Aug 1992 | 20 Jan 1996 | British | 95 years |
| Peter Murray Robertson | Director | 1 Sept 2001 | 22 Nov 2004 | British | 79 years |
| Peter Thomas Batley | Director | 1 Apr 2010 | 31 Jul 2011 | British | 65 years |
| Peter William East | Director | 22 Aug 1992 | 4 May 1999 | British | 88 years |
| Peter William Hitchcock | Director | 1 Apr 2013 | 1 Jul 2016 | British | 60 years |
| Philip Martin Naybour | Director | 25 Aug 2010 | 9 Nov 2015 | British | 66 years |
| Philip Martin Naybour | Director | 10 Nov 2015 | 6 Apr 2020 | British | 66 years |
| Philippe Chamoret | Director | 1 Oct 2010 | 1 Apr 2013 | French | 65 years |
| Richard James Moon | Director | 4 May 1999 | 21 Sept 2001 | British | 76 years |
| Richard Simon Deakin | Director | 1 Feb 2004 | 1 Jul 2005 | British | 62 years |
| Robert John Collins | Director | 30 Jun 2003 | 31 Jan 2004 | British | 78 years |
| Robert Nathaniel Baxter | Director | 1 Jan 2019 | 31 Dec 2020 | British | 65 years |
| Roger Norman Freeman | Director | 1 Jul 2005 | 1 Apr 2010 | British | 84 years |
| Samuel George Keayes | Director | 1 Apr 2010 | 25 Oct 2010 | British | 52 years |
| Scott Carnegie Grant | Director | 1 Jul 2005 | 31 Jan 2007 | British | 82 years |
| Sean Denis Omalley | Director | 1 Sept 2000 | 31 Mar 2002 | British | 77 years |
| Shaun Kevin Jones | Director | 1 May 2008 | 1 Oct 2010 | British | 60 years |
| Shaun Kevin Jones | Director | 1 Sept 2016 | 31 Dec 2020 | British | 60 years |
| Simon John Louis Mountfort | Director | 22 Aug 1992 | 23 Oct 1996 | British | 85 years |
| Stephane Henri Pierre Ramon | Director | 3 Jan 2012 | 1 Apr 2013 | French | 60 years |
| Stephen Francis Mccann | Director | 1 Jul 2016 | 31 Dec 2020 | British | 58 years |
| Steven George Murray | Director | 1 Jul 2020 | 31 Dec 2020 | British | 62 years |
| Stuart Michael Boulton | Director | 1 Jan 2016 | 31 Dec 2020 | British | 63 years |
| Terence Anthony Stone | Director | 1 Sept 2000 | 26 Mar 2002 | British | 83 years |
| Thomas O'neill | Director | 1 Sept 2000 | 31 Dec 2003 | British | 83 years |
| Timothy Michael Robinson | Director | 1 Jul 2005 | 1 Feb 2006 | British | 63 years |
| Timothy Michael Rogers | Director | 1 Jul 1997 | 4 May 1999 | British | 67 years |
| Victor Manuel Chavez | Director | 24 Jul 2006 | 30 Mar 2020 | British | 63 years |
| Wallace Millar Crawford | Director | 30 Jun 2003 | 1 Jul 2005 | British | 67 years |
| William Alvin Wilby | Director | 1 Apr 2010 | 31 Dec 2019 | British | 68 years |
| William Paul Moffatt | Director | 1 Sept 2004 | 4 Jan 2008 | British | 70 years |
| William Paul Moffatt | Secretary | 1 Sept 2004 | 4 Jan 2008 | British | - |
| Yokini Pathmanathan | Director | 5 Jan 2015 | 5 Apr 2017 | British | 53 years |