| Alan Paul Busson | Secretary | 14 Jan 1994 | 1 May 2001 | British | - |
| Andrew George Stephen Row | Director | 1 Jan 2010 | 1 Feb 2018 | British | 63 years |
| Andrew Michael Moore | Director | 31 Jan 2020 | 11 Dec 2023 | British | 62 years |
| Anthony Talbot Heffernan James Considine | Director | 10 Jul 2000 | 1 Dec 2002 | Irish | 72 years |
| Brian Hardy | Director | 25 Jul 1992 | 10 Jul 2000 | British | 84 years |
| Brian John Ridgewell | Director | 25 Jul 1992 | 31 Dec 1994 | British | 90 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| Daniel Chukumah Odogwu | Director | 3 Dec 2017 | 8 Jan 2020 | British | 60 years |
| David Andrew James Baldry | Director | 10 Jul 2000 | 15 Sept 2006 | British | 71 years |
| David William Dunlop | Secretary | 25 Jul 1992 | 14 Jan 1994 | British | - |
| Fiona Victoria Ryder | Director | 26 Feb 2018 | 1 Aug 2018 | British | 51 years |
| Frederic Jean Baudry | Director | 15 Sept 2006 | 18 Mar 2009 | French | 61 years |
| Frederick Malcolm Neil Sutton | Director | 23 Apr 2013 | 1 Dec 2017 | British | 66 years |
| Gian Franco Molinari | Director | 25 Jul 1992 | 31 Dec 1994 | Italian | 91 years |
| Ian Norman Pringle | Director | 25 Jul 1992 | 30 Sept 2000 | Zimbabwe | 76 years |
| James Michael John Prophet | Director | 25 Jul 1992 | 30 Jun 1999 | British | 81 years |
| James Robert Provan Pike | Director | 1 Jul 1994 | 31 Dec 1994 | British | 71 years |
| Jeremy Tardrew Cook | Director | 1 Nov 2002 | 1 Jul 2005 | British | 76 years |
| John Henry Ellicock | Director | 25 Jul 1992 | 1 Feb 1998 | British | 80 years |
| John Joseph Carey | Director | 1 Jun 2010 | 1 Apr 2014 | Irish,american | 64 years |
| John Stuart Briggs | Director | 1 Feb 1998 | 1 Mar 2004 | British | 80 years |
| Jonathan Lincoln Vickers | Director | 1 Jan 1995 | 1 Sept 1998 | British | 72 years |
| Jonathan Michael Fry | Director | 25 Jul 1992 | 1 Feb 1998 | British | 89 years |
| Jorge Mauricio Costa Bastos | Director | 1 Jan 2013 | 23 Apr 2013 | Brazilian | 68 years |
| Kevin Lee James | Director | 1 Dec 2002 | 15 Sept 2006 | American | 69 years |
| Luc Bardin | Director | 30 Dec 2000 | 1 Dec 2001 | French | 69 years |
| Lynn Paul Waterman | Director | 1 Aug 2009 | 1 Jun 2010 | British | 62 years |
| Lynn Paul Waterman | Director | 22 Jul 2013 | 31 Dec 2015 | American | 62 years |
| Marcia Anne Brand | Director | 1 Apr 2014 | 1 Apr 2015 | American | 66 years |
| Martin Graham Smith | Director | 25 Jul 1992 | 31 Jul 1992 | British | 83 years |
| Martin Graham Smith | Director | 1 Jan 1995 | 31 Oct 2000 | British | 83 years |
| Mehmet Tufan Erginbilgic | Director | 15 Sept 2006 | 5 Nov 2007 | Turkish | 67 years |
| Michael Bailey Dearden | Director | 1 Feb 1998 | 30 Dec 2000 | British | 84 years |
| Michael Johnson | Director | 1 Jul 2005 | 22 Jul 2013 | British | 72 years |
| Michael Johnson | Director | 30 Dec 2000 | 1 Dec 2001 | British | 72 years |
| Paul Bysouth | Director | 1 Feb 1998 | 30 Sept 2000 | British | 69 years |
| Paul Ian Winton Turner | Director | 1 Apr 2015 | 8 Jan 2020 | British | 63 years |
| Paul Richard Miller | Director | 1 Jan 2023 | 31 May 2024 | British | 56 years |
| Peter Joseph Steven Mcconnon | Director | 2 Jan 2008 | 31 Dec 2012 | British | 66 years |
| Philip Andrew Kimberley | Director | 1 Jan 1995 | 31 Dec 1998 | British | 76 years |
| Ralph Rex Hewins | Director | 6 Dec 2007 | 1 Jan 2010 | British | 63 years |
| Ramchander Avanavadi Subramaniam | Director | 10 Feb 2016 | 31 Aug 2022 | Indian | 64 years |
| Rebecca Jayne Wright | Secretary | 12 Apr 2001 | 30 Jun 2010 | Other | - |
| Riccardo Tavoletti | Director | 8 Jan 2020 | 1 Dec 2021 | Italian | 57 years |
| Robert David Mutchell | Director | 1 Nov 2018 | 1 Apr 2025 | British | 52 years |
| Rosemary Warnock | Director | 1 Mar 2004 | 1 Jul 2005 | Australian | 79 years |
| Steven Mather Wright | Director | 1 Jul 2005 | 1 Aug 2007 | American | 70 years |
| Thomas Robert Crane Jr | Director | 25 Jul 1992 | 1 Feb 1998 | Us Citizen | 86 years |
| Timothy Edwin Paul Stevenson | Director | 1 Aug 1993 | 10 Jul 2000 | British | 78 years |
| Volker Uwe Allnoch | Director | 1 Mar 1994 | 30 Sept 2000 | German | 85 years |
| William Daniel Carlisle | Director | 8 Jan 2020 | 1 Dec 2021 | British | 62 years |
| Yasin Stanley Ali | Secretary | 12 Apr 2001 | 30 Jun 2010 | - | - |