| Andrew Mark Parsons | Director | 22 Feb 2010 | 15 Sept 2010 | British | 61 years |
| Andrew Moss | Director | 1 Nov 2016 | 23 Nov 2016 | British | 62 years |
| Andrew Patterson Booth | Director | 14 Nov 1996 | 1 Nov 1999 | British | 74 years |
| Anthony James Herbert | Secretary | 1 Jul 1992 | 27 Jan 1993 | British | - |
| Antonios Kassimiotis | Director | 25 Nov 2016 | 31 Dec 2022 | Australian | 59 years |
| Arthur Leslie Owen | Director | 18 Feb 1993 | 9 Jun 1994 | United Kingdom | 77 years |
| Barbara Ann Reilly | Director | 27 Jul 2001 | 29 May 2004 | British | 72 years |
| David Charles Herbert | Director | 14 Nov 1996 | 17 Oct 1997 | British | 71 years |
| David Paul Stewart | Director | 27 Mar 1992 | 31 Jul 2000 | British | 82 years |
| David Richard Cheeseman | Director | 23 Jul 2008 | 31 Jan 2020 | British | 58 years |
| Geoffrey Harrison-dees | Director | 27 Mar 1992 | 20 Dec 1995 | British | 88 years |
| Ian David Lea Richardson | Secretary | 28 Jan 1993 | 12 Feb 1997 | British | - |
| Ian Robinson | Director | 20 Nov 2009 | 12 Jul 2010 | British | 57 years |
| Jean Paul Dominique Louis Drouffe | Director | 17 Sept 2010 | 31 Aug 2013 | French | 51 years |
| Jeffrey William Painter | Director | 27 Mar 1992 | 18 Nov 1993 | British | 82 years |
| Jeffrey William Painter | Director | 20 Dec 1995 | 28 Feb 1999 | British | 82 years |
| Jeremy Peter Small | Secretary | 5 Nov 1999 | 1 Nov 2016 | British | - |
| John Desmond Moore | Director | 27 Mar 1992 | 16 Jan 1998 | British | 74 years |
| John Dudley Webster | Secretary | 27 Mar 1992 | 30 Jun 1992 | British | - |
| John Jeffrey Jolly | Director | 30 Mar 1995 | 19 Nov 2002 | British | 77 years |
| John Simon Hoyle | Director | 27 Jul 2001 | 29 May 2004 | British | 67 years |
| Keith George Gibbs | Director | 29 Apr 2004 | 1 Nov 2016 | British | 68 years |
| Mark Richardson Howes | Director | 29 Apr 2004 | 1 Nov 2016 | British | 66 years |
| Mary Elizabeth Hitchon | Secretary | 13 Feb 1997 | 5 Nov 1999 | British | - |
| Michael Francis Ramsey | Director | 17 Oct 1997 | 31 May 2000 | British | 66 years |
| Michael James Stirrup | Director | 9 Jun 1994 | 30 Apr 2001 | British | 73 years |
| Paul James Barlow | Director | 27 Mar 1992 | 9 Jun 1994 | British | 82 years |
| Paul James Evans | Director | 29 Apr 2004 | 1 Nov 2016 | British | 61 years |
| Peter Nigel Stuckey Clark | Director | 27 Mar 1992 | 9 Jun 1994 | British | 79 years |
| Robert Brian Frederick Seaman | Director | 12 Dec 2016 | 30 Jun 2023 | British | 62 years |
| Robert Henry Gough | Director | 6 Apr 1992 | 30 Jul 1995 | British | 75 years |
| Shamira Mohammed | Director | 1 Nov 2016 | 30 Sept 2017 | British | 58 years |
| Stephen Kenneth Coombs | Director | 20 Dec 1995 | 31 Jul 2001 | British | 78 years |