| Adam Charles Moore | Director | 1 Sept 2015 | 30 Jun 2024 | British | 63 years |
| Alastair Gregor Turner | Director | 1 Dec 2015 | 1 Dec 2018 | British | 78 years |
| Andrew John Chapman | Director | 14 Jun 1996 | 31 Mar 2000 | British | 80 years |
| Andrew John Chapman | Director | 8 Jun 2000 | 8 Jun 2003 | British | 80 years |
| Andrew John Chapman | Director | 2 Feb 2004 | 1 Oct 2008 | British | 80 years |
| Andrew Trevor Philpot | Director | 8 Jun 2000 | 9 Feb 2001 | British | 58 years |
| Axel De Saint-quentin | Director | 4 Nov 2009 | 20 Feb 2012 | French | 63 years |
| Celia Rosalind Gough | Secretary | 30 Apr 2012 | 31 Oct 2025 | - | - |
| Christophe Bellynck | Director | 11 Apr 2014 | 20 Dec 2021 | French | 65 years |
| Christopher Berkeley Stephens | Director | 23 Dec 1994 | 1 Oct 1996 | British | 78 years |
| Christopher Tawney | Secretary | 23 Dec 1994 | 16 Feb 1996 | British | - |
| Daniel Forbes Pepitone | Director | 3 Jan 2006 | 13 Aug 2009 | British | 59 years |
| David Gordon Shore | Director | 10 Mar 1998 | 7 Oct 1999 | British | 74 years |
| David Ian Blackmore Gill | Director | 1 Apr 2005 | 7 Nov 2005 | British | 80 years |
| David Stanley Mace | Director | 1 Apr 2005 | 29 Nov 2007 | British | 75 years |
| Donal Michael Crowley | Director | 10 Oct 2013 | 28 Jul 2017 | Irish | 66 years |
| Douglas Alexander Skirving | Director | 1 Sept 2011 | 20 Nov 2015 | British | 67 years |
| Gary Maydon | Secretary | 16 Feb 1996 | 8 Aug 1997 | British | - |
| George Melville Hannon Carmichael | Director | 16 Oct 2009 | 11 Nov 2011 | British | 90 years |
| George Melville Hannon Carmichael | Director | 11 Jan 2012 | 30 Jun 2013 | British | 90 years |
| Ian Robert Jones | Director | 1 Oct 2008 | 10 Feb 2011 | British | 75 years |
| James Frederick Mcgown | Director | 8 Nov 1995 | 31 Mar 2000 | British | 83 years |
| James Harold Roberts | Director | 1 Apr 2005 | 3 Jan 2006 | American | 81 years |
| Jane Louise Hughes | Director | 1 Oct 2017 | 20 Dec 2021 | British | 58 years |
| John Michael Gaunt | Director | 1 Sept 2008 | 7 Sept 2018 | British | 72 years |
| John Michael Kutner | Director | 23 Dec 1994 | 16 Apr 2015 | British | 86 years |
| John Vernon Novy | Director | 4 Oct 2011 | 15 Apr 2015 | British | 68 years |
| Jonathan Andrew Reardon | Nominee Director | 10 Aug 1994 | 23 Dec 1994 | British | 67 years |
| Joseph Bernard Mangion | Director | 5 Sept 1996 | 31 Mar 2004 | British | 68 years |
| Julian Bowden-williams | Director | 1 Jul 2021 | 1 Mar 2022 | Welsh | 54 years |
| Karen Austin | Director | 1 Oct 2008 | 28 Mar 2013 | British | 66 years |
| Karin Louise Clayton | Director | 8 Apr 2016 | 28 Jul 2017 | British | 61 years |
| Keith Stuart Rippington | Director | 11 Oct 2000 | 18 Sept 2002 | British | 70 years |
| Keith William Taylor | Director | 31 Jul 2004 | 31 Mar 2008 | British | 73 years |
| Keith William Taylor | Secretary | 31 Jul 2004 | 31 Mar 2008 | British | - |
| Kenneth Blakely Hunter | Director | 1 Dec 2018 | 20 Dec 2021 | British | 65 years |
| Kevin Peter Tompkins | Director | 7 Feb 1997 | 3 Jun 1999 | British | 76 years |
| Margaret Beatrice Steward | Director | 13 Jun 2002 | 12 Jun 2004 | British | 78 years |
| Mark Joseph Baxendale | Director | 26 Apr 2004 | 30 Nov 2011 | British | 63 years |
| Martin John Holt | Director | 1 Dec 2008 | 13 Aug 2009 | British | 61 years |
| Martin Webster | Nominee Director | 10 Aug 1994 | 23 Dec 1994 | British | 68 years |
| Martin Webster | Nominee Secretary | 10 Aug 1994 | 23 Dec 1994 | British | - |
| Michael Joseph Edward Butcher | Secretary | 16 Oct 2008 | 30 Apr 2012 | British | - |
| Neil Colin Butcher | Director | 10 Mar 1998 | 9 Nov 2012 | British | 71 years |
| Neil Vincent Gallagher | Director | 20 Feb 2012 | 27 Apr 2017 | British | 63 years |
| Nigel Curtis Thompson | Director | 11 Oct 2000 | 11 Oct 2003 | British | 62 years |
| Nigel Curtis Thompson | Director | 26 May 2004 | 16 Feb 2007 | British | 62 years |
| Pan Trustees Limited | Corporate Director | 1 Jul 2004 | 1 Jan 2020 | United Kingdom | - |
| Paul Barry Stevens | Director | 3 Jan 2006 | 1 Oct 2008 | British | 60 years |
| Paul Barry Stevens | Director | 6 Nov 2009 | 7 Aug 2013 | British | 60 years |
| Paul James Thornber | Director | 7 Jun 2001 | 29 Oct 2003 | British | 81 years |
| Paul Michael Levett | Director | 1 Jan 2009 | 8 Apr 2011 | British | 69 years |
| Peter Charles Campbell Dickie | Director | 1 Sept 2003 | 2 Mar 2005 | British | 64 years |
| Peter William Darby | Director | 31 Mar 2004 | 1 Dec 2008 | British | 77 years |
| Richard Douglas Berry | Director | 1 Oct 2008 | 1 Jan 2009 | Australian | 70 years |
| Richard Michael Bent | Director | 7 Sept 2018 | 30 Jun 2024 | British | 64 years |
| Richard Noel Langdale Black | Director | 1 Oct 1996 | 31 Aug 2003 | British | 79 years |
| Robert Charles Hunt | Director | 11 Apr 2014 | 1 Jul 2021 | British | 69 years |
| Rodney Grahame Castle | Director | 10 Dec 1999 | 31 Mar 2000 | British | 84 years |
| Rodney Grahame Castle | Secretary | 8 Aug 1997 | 31 Jul 2004 | British | - |
| Sheila Gleig | Director | 1 Apr 1996 | 13 Jun 2002 | British | 78 years |
| Stephen Redfern | Director | 1 Sept 2008 | 5 Apr 2012 | British | 76 years |
| Timothy Arthur Ames | Director | 13 Jan 2012 | 1 Sept 2015 | British | 61 years |
| Vincent Housecroft | Director | 1 Apr 2005 | 25 Sept 2009 | British | 84 years |