| Albert Richrd Gordon Carman | Director | 30 Jul 1992 | 13 Feb 1995 | British | 74 years |
| Andrew Ernest Wilkinson | Director | 27 Mar 2025 | 13 Aug 2025 | British | 57 years |
| Andrew Simon Price | Director | 27 Mar 1995 | 31 Dec 2004 | British | 62 years |
| Anne Veronica Cooper | Director | 30 Jul 1992 | 23 Nov 2010 | British | 76 years |
| Barbara Plucnar Jensen | Director | 3 Oct 2016 | 28 Feb 2019 | Danish | 55 years |
| Bruce Andrew Van Der Waag | Director | 13 May 2019 | 22 Oct 2021 | Dutch | 60 years |
| David Wynne Thomas | Director | 1 Jul 1996 | 30 Jun 1997 | British | 82 years |
| Doreen Mary Carpenter | Director | 30 Jul 1992 | 31 Oct 1995 | British | 96 years |
| Elizabeth Michelle Benison | Director | 21 May 2021 | 27 Feb 2025 | British | 59 years |
| Henrik Andersen | Director | 7 Nov 2005 | 30 Nov 2011 | Danish | 59 years |
| Jahangeer Ahmed | Director | 30 Jul 1992 | 31 Mar 1994 | British | 70 years |
| Jahangeer Ahmed | Director | 30 Nov 1995 | 5 Oct 2009 | British | 70 years |
| Jorn Vestergaard | Director | 1 Jun 2015 | 3 Oct 2016 | Danish | 58 years |
| Kenneth John Pepper | Director | 30 Nov 1995 | 1 Jul 1996 | British | 80 years |
| Kevin David Mahoney | Director | 1 Jul 1998 | 3 Aug 2000 | British | 75 years |
| Martin Francis Ohalloran | Director | 30 Jul 1992 | 30 Nov 1995 | British | 73 years |
| Matthew Edward Stanley Brabin | Director | 16 Mar 2009 | 13 Nov 2015 | British | 61 years |
| Matthew Edward Stanley Brabin | Director | 1 Aug 2016 | 16 Jun 2020 | British | 61 years |
| Michael Barker | Director | 1 May 2009 | 30 Jun 2020 | British | 63 years |
| Michael Barker | Secretary | 1 Aug 2001 | 30 Jun 2020 | British | - |
| Niall Edward Jones | Secretary | 16 Nov 2020 | 2 Jul 2021 | - | - |
| Paul Thompson | Director | 14 Dec 2012 | 31 Dec 2017 | British | 61 years |
| Peter Vivian Spinney | Director | 1 Mar 2004 | 5 Oct 2009 | British | 81 years |
| Philip John Leigh | Director | 11 Jul 2014 | 28 Feb 2021 | British | 59 years |
| Purvin Kumar Madhusudan Patel | Director | 16 Jun 2020 | 23 Dec 2020 | British | 53 years |
| Richard Ian Sykes | Director | 12 Mar 2012 | 1 Aug 2016 | British | 56 years |
| Robert Ryan | Director | 1 May 1996 | 30 Apr 2009 | English | 75 years |
| Robert Ryan | Secretary | 30 Jul 1992 | 31 Jul 2001 | English | - |
| Scott Andrew Davies | Director | 27 Feb 2025 | 27 Mar 2025 | Australian | 56 years |
| Simon Paul Cox | Director | 30 Jul 1992 | 31 Dec 2014 | British | 78 years |
| Stephanie Louise Hamilton | Director | 22 Feb 2021 | 31 Jul 2021 | British | 55 years |
| Theo Buitendijk | Director | 9 Dec 1996 | 30 Jun 1997 | Dutch | 83 years |
| Thomas Wightman Wild | Director | 1 Jan 1993 | 30 Jan 1998 | British | 64 years |
| Thomas Wightman Wild | Director | 1 Oct 2003 | 31 Dec 2013 | British | 64 years |
| Waldemar Schmidt | Director | 30 Jul 1992 | 4 Dec 1995 | Danish | 86 years |
| Warick John Carson Dunn | Director | 30 Jul 1992 | 31 Mar 1994 | New Zealand | 69 years |
| Wendy Stowell | Director | 30 Sept 2010 | 6 Jan 2022 | New Zealander,british | 60 years |