| Alan Sidney James Durant | Director | 26 Apr 1992 | 15 Jun 1992 | British | 89 years |
| Allan Rex Bartles-smith | Director | 26 Apr 1992 | 31 Dec 1996 | British | 87 years |
| Andrew Martin Brown | Director | 9 Jul 2001 | 11 Dec 2003 | British | 71 years |
| Anthony Alexander Shutes | Director | 1 Jan 1997 | 31 Dec 1999 | British | 89 years |
| Barrington Michael John Norris | Director | 28 Jul 1998 | 29 Dec 2000 | British | 81 years |
| Brian Dermot Miller | Director | 9 Jul 2001 | 14 Jul 2003 | British | 81 years |
| Carl Lindsay Platt | Director | 18 Feb 2019 | 1 Sept 2022 | British | 53 years |
| Carlos Gabriel Uruchurtu Bustamante | Director | 26 Mar 2009 | 27 Sept 2018 | Mexican | 60 years |
| Charles Bennett Brown | Secretary | 1 Mar 1999 | 26 May 2000 | British | - |
| Christopher Arthur Leese | Director | 31 Jul 2007 | 12 Dec 2018 | British | 65 years |
| Clive Lyndon Oakley | Director | 1 Nov 2005 | 30 Apr 2008 | British | 60 years |
| Damien Jeffrey Allen | Director | 3 Nov 2022 | 9 Sept 2025 | British | 45 years |
| Daphne Margaret Murray | Secretary | 1 Nov 2016 | 30 Jun 2018 | - | - |
| David Alec Hart | Director | 12 Dec 2018 | 31 Jul 2025 | British | 53 years |
| David Jeremy Beck | Director | 23 Nov 2020 | 1 Aug 2024 | British | 47 years |
| David Richard Swinson | Director | 26 Apr 1992 | 30 Jun 2000 | British | 84 years |
| David Sidney Neave | Director | 22 Mar 1996 | 17 Feb 2004 | British | 77 years |
| David Sidney Neave | Director | 11 Aug 2004 | 4 Mar 2005 | British | 77 years |
| Derek Michael John O'donnell | Director | 1 Sept 2010 | 30 Jul 2015 | Irish | 62 years |
| Emma Jayne Ashenden | Secretary | 20 Dec 2019 | 2 Feb 2023 | - | - |
| Frank James Standish | Secretary | 26 May 2000 | 30 Jun 2000 | British | - |
| Gareth Moores | Director | 1 Nov 2005 | 31 Aug 2006 | British | 63 years |
| Gonzalo Galindo Gout | Director | 1 Mar 2008 | 5 Jul 2011 | Mexican | 62 years |
| Graham Edward Clark | Director | 1 Jan 1997 | 28 Mar 2000 | British | 71 years |
| Graham George Hepburn | Director | 1 Jan 2004 | 23 Sept 2005 | British | 73 years |
| Graham Nicholas George Russell | Director | 31 Oct 2007 | 1 Sept 2010 | British | 54 years |
| Hector Tassinari Eldridge | Director | 1 Jul 2016 | 22 Jun 2018 | Spanish | 55 years |
| Ignacio Madridejos Fernandez | Director | 1 Mar 2008 | 1 Jan 2016 | Spanish | 61 years |
| Ignacio Ortiz Martin | Director | 22 Apr 2005 | 1 Mar 2008 | Mexican | 62 years |
| Jason Alexander Smalley | Director | 8 Oct 2012 | 22 Oct 2016 | British | 57 years |
| Jason Alexander Smalley | Secretary | 31 Mar 2015 | 1 Aug 2015 | - | - |
| Jesus Vicente Gonzalez Herrera | Director | 5 Jul 2011 | 30 Jun 2017 | American | 61 years |
| John Anthony Robinson | Director | 4 Jul 1997 | 1 Apr 2004 | British | 78 years |
| John Brian Cooper | Director | 26 Apr 1992 | 31 Dec 1994 | British | 94 years |
| John Brian Cooper | Director | 13 Jan 1995 | 31 Dec 1995 | British | 94 years |
| John Sidney Ornsby | Director | 26 Apr 1992 | 31 Dec 1995 | British | 90 years |
| Larry Jose Zea Betancourt | Director | 26 Mar 2009 | 1 Oct 2019 | Venezuelan | 65 years |
| Laurence Burdett Dagley | Director | 22 Jun 2018 | 4 Nov 2024 | British | 50 years |
| Martin Kusk Langvad | Director | 1 Jan 2015 | 18 Dec 2015 | Danish | 69 years |
| Michael Alan Ogden | Director | 18 Oct 2004 | 31 Oct 2007 | British | 72 years |
| Michael Anthony Robertshaw | Director | 28 Jul 1998 | 31 Dec 1999 | British | 80 years |
| Michael George Foster | Director | 28 Mar 2000 | 6 Aug 2004 | British | 73 years |
| Michael John Halling | Director | 9 Jul 2001 | 3 Oct 2003 | British | 79 years |
| Michael Leslie Collins | Director | 19 Dec 2001 | 21 Jan 2002 | British | 70 years |
| Michael Leslie Collins | Secretary | 30 Jun 2000 | 31 Mar 2015 | British | - |
| Michel Robert Daniel Andre | Director | 11 Jul 2017 | 12 Dec 2018 | French | 56 years |
| Narinder Nath Kalia | Secretary | 26 Apr 1992 | 1 Mar 1999 | British | - |
| Peter Duncan Hooson | Director | 9 Jul 2001 | 29 Jun 2005 | British | 78 years |
| Peter Lance Young | Director | 24 Mar 1994 | 30 Jun 2000 | British | 88 years |
| Precel James Owen | Director | 26 Apr 1992 | 31 Dec 1995 | British | 96 years |
| Rebecca Juliet Wright | Secretary | 30 Jun 2018 | 20 Dec 2019 | - | - |
| Scott Frederick Jones | Director | 3 Nov 2022 | 31 Jul 2025 | British | 43 years |
| Stephanie Frances Horn | Director | 23 Nov 2020 | 30 Oct 2025 | British | 60 years |
| Stephen John Eastwood | Director | 16 Jan 2002 | 2 Oct 2002 | British | 69 years |
| Stewart John Rodney Davies | Director | 27 Nov 2002 | 14 Jun 2005 | British | 66 years |
| Vishal Puri | Secretary | 1 Aug 2015 | 1 Nov 2016 | - | - |