| Cameron Stokell | Director | 27 Dec 2021 | 5 May 2022 | British | 27 years |
| Catherine Louise Sayer | Director | 25 Oct 1993 | 11 Jul 1995 | British | 55 years |
| Catherine Louise Sayer | Secretary | 25 Oct 1993 | 11 Jul 1995 | British | - |
| Christophe Andre Bernard Chapron | Director | 19 Feb 2007 | 1 Mar 2016 | French | 62 years |
| Christopher Michael Green | Director | 18 Jul 1995 | 19 May 1999 | British | 72 years |
| David Courtenay Palmer-jones | Director | 1 Oct 2008 | 1 Jan 2020 | British | 63 years |
| David John Watson | Director | 18 Jul 1995 | 19 May 1999 | British | 82 years |
| David John Watson | Secretary | 18 Jul 1995 | 19 May 1999 | British | - |
| David William Ashton | Director | 1 May 1995 | 18 Jul 1995 | British | 82 years |
| Elizabeth Jayne Clare Cooper | Director | 9 May 2000 | 31 Jul 2003 | British | 71 years |
| Elizabeth Jayne Clare Cooper | Secretary | 9 May 2000 | 31 Jul 2003 | British | - |
| Florent Thierry Antoine Duval | Director | 1 Feb 2016 | 10 Jul 2020 | French | 50 years |
| Gary Mayson | Director | 1 Jan 2006 | 13 Apr 2022 | British | 57 years |
| Graham Arthur Mckenna-mayes | Secretary | 31 Jul 2003 | 5 Jan 2009 | British | - |
| Graham Ingleson | Director | 1 Oct 2003 | 1 Jan 2006 | British | 67 years |
| Ian Anthony Sexton | Director | 2 Mar 2001 | 19 Feb 2007 | British | 70 years |
| Ian Frederick Goodfellow | Director | 18 Jul 1995 | 31 May 2003 | British | 72 years |
| James Michael Kay | Director | 20 Jun 1996 | 9 Aug 2001 | British | 74 years |
| Jim Watson | Director | 26 Sept 2000 | 31 May 2001 | British | 96 years |
| John Frederick Leaver | Director | 9 May 2000 | 28 Feb 2001 | British | 78 years |
| John Garvey | Director | 11 Jul 1995 | 20 Jun 1996 | British | 75 years |
| John Granger | Director | 16 Jul 2009 | 24 Jun 2010 | British | 60 years |
| John James Scanlon | Director | 31 Jul 2003 | 13 Apr 2022 | Irish | 57 years |
| John Wilkinson | Director | 9 Dec 2015 | 13 Apr 2022 | British | 52 years |
| Jonathan Charles Garvey | Director | 18 Jul 1995 | 31 May 2001 | British | 71 years |
| Kenneth Hall | Director | 16 Oct 1998 | 12 Jul 1999 | British | 73 years |
| Marek Robert Gordon | Director | 31 Oct 2006 | 31 Dec 2007 | British | 73 years |
| Marek Robert Gordon | Director | 31 Dec 2009 | 16 Nov 2020 | British | 73 years |
| Marjorie Anne James | Director | 8 Jun 2016 | 9 May 2021 | British | 68 years |
| Mark Hedley Thompson | Secretary | 5 Jan 2009 | 13 Apr 2022 | British | - |
| Maurice Edward Boddy | Director | 20 Jun 1996 | 16 Oct 1998 | British | 69 years |
| Michael Graeme Dewison | Director | 16 Nov 2020 | 13 Apr 2022 | British | 64 years |
| Michael Graham | Director | 4 Dec 1991 | 25 Oct 1993 | British | 57 years |
| Michael Graham | Secretary | 4 Dec 1991 | 25 Oct 1993 | British | - |
| Moss Boddy | Director | 1 Aug 2001 | 14 Jul 2004 | British | 73 years |
| Paul Taylor | Director | 16 Jul 2009 | 13 Nov 2009 | British | 62 years |
| Paul Taylor | Director | 21 Mar 1996 | 19 May 1999 | British | 67 years |
| Paul Taylor | Director | 1 Jul 2001 | 31 May 2003 | British | 67 years |
| Per-anders Hjort | Director | 31 May 2003 | 1 Oct 2008 | Swedish | 68 years |
| Peter John Gillatt | Director | 7 Jan 2002 | 31 Oct 2006 | British | 66 years |
| Peter Terence Jackson | Director | 21 Jan 2008 | 8 Jun 2016 | British | 66 years |
| Raymond Hawthorne | Director | 18 Jul 1995 | 21 Mar 1996 | British | 77 years |
| Richard George Long | Director | 4 Dec 1991 | 1 May 1995 | British | 70 years |
| Robert Anthony Searby | Director | 19 May 1999 | 2 Mar 2001 | British | 70 years |
| Robert James Wheatley | Director | 1 Jul 2001 | 31 May 2002 | British | 83 years |
| Simon John Thorne | Secretary | 23 Feb 1999 | 9 May 2000 | British | - |
| Tim Otley | Director | 27 Mar 2012 | 9 Dec 2015 | British | 53 years |