| Anthony Reginald Raybould | Director | 9 Jul 1992 | 1 Jun 1995 | British | 67 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 |
| Christopher Gerard Tarrant | Secretary | 13 May 1996 | 5 Jan 2000 | British | - |
| Claire Louise Drake | Secretary | 18 Mar 1993 | 1 Nov 1993 | British | - |
| Clive William Cowley | Director | 9 Jul 1992 | 21 Feb 1996 | British | 74 years |
| Corinne Gethin | Director | 1 Feb 2000 | 30 Sept 2002 | British | 64 years |
| David John Bill | Director | 4 Dec 1995 | 1 Dec 1997 | British | 73 years |
| David John Bill | Secretary | 1 Nov 1993 | 13 May 1996 | British | - |
| David Wynne Thomas | Director | 1 Jul 1996 | 10 Mar 1997 | British | 82 years |
| Henrik Andersen | Director | 1 Oct 2005 | 30 Nov 2011 | Danish | 59 years |
| Henrik Andersen | Secretary | 1 Oct 2005 | 19 May 2009 | Danish | - |
| Jahangeer Ahmed | Director | 9 Jul 1992 | 30 Sept 2002 | British | 70 years |
| Jahangeer Ahmed | Secretary | 9 Jul 1992 | 18 Mar 1993 | British | - |
| Jeff Olsen Gravenhorst | Director | 1 May 2003 | 30 Sept 2005 | Danish | 64 years |
| Jeff Olsen Gravenhorst | Secretary | 1 May 2003 | 30 Sept 2005 | Danish | - |
| John Barrie Johnstone | Director | 16 May 1991 | 9 Jul 1992 | British | 79 years |
| John Barrie Johnstone | Secretary | 16 May 1991 | 9 Jul 1992 | British | - |
| John Stephen Rathbone | Director | 4 May 1999 | 5 May 2000 | British | 74 years |
| Jorn Vestergaard | Director | 1 Jun 2015 | 3 Oct 2016 | Danish | 58 years |
| Kenneth John Pepper | Director | 4 Dec 1995 | 30 Sept 1996 | British | 80 years |
| Kevin David Mahoney | Director | 14 Apr 1998 | 26 May 2000 | British | 65 years |
| Martin Francis Ohalloran | Director | 16 May 1991 | 4 Dec 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 Joseph Billany | Director | 1 Jan 1994 | 30 Nov 1998 | British | 76 years |
| Peter Ernest Barker | Director | 9 Jul 1992 | 31 Jan 2006 | British | 66 years |
| Philip John Leigh | Director | 28 Feb 2019 | 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 |
| Richard Julian Illingworth | Director | 1 Dec 2000 | 1 May 2003 | British | 62 years |
| Richard Julian Illingworth | Secretary | 8 Jul 1998 | 1 May 2003 | British | - |
| Robert David Openshaw | Director | 1 Dec 2000 | 27 Oct 2010 | British | 77 years |
| Simon Paul Cox | Director | 3 Aug 2000 | 30 Sept 2002 | 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 |
| Waldemar Schmidt | Director | 9 Jul 1992 | 4 Dec 1995 | Danish | 86 years |
| Warick Dunn | Director | 9 Dec 1996 | 31 May 1999 | British | 69 years |