| Alan Duke Brown | Director | 21 Mar 2014 | 30 Apr 2018 | British | 66 years |
| Alistair Baker | Director | 2 Jan 1996 | 26 Apr 1996 | British | 60 years |
| Colin Gabb | Director | 2 Jan 2003 | 21 Dec 2010 | British | 74 years |
| David Geoffrey Maurice Cull | Director | 21 Aug 2002 | 21 Dec 2010 | British | 79 years |
| Elaine Stratford | Director | 1 Apr 2002 | 21 Jan 2004 | British | 63 years |
| Geoffrey Piers Banfield | Director | 10 Jun 2003 | 19 Feb 2016 | British | 58 years |
| Geoffrey Piers Banfield | Director | 14 Jan 1999 | 31 May 2003 | British | 58 years |
| Graham Alan Cunningham | Director | 21 Mar 2014 | 19 Feb 2016 | British | 52 years |
| Iain Andrew Hayward | Director | 19 Jun 2007 | 29 Jun 2009 | British | 67 years |
| John Anthony Kennedy | Director | 19 Jan 2000 | 31 May 2003 | British | 63 years |
| John Anthony Kennedy | Director | 29 Jun 2009 | 19 Feb 2016 | British | 63 years |
| John Graham Gunn Reid | Director | 21 Mar 2014 | 31 Oct 2018 | British | 62 years |
| Marcel John Coulon | Director | 14 Jan 1999 | 19 Feb 2016 | British | 62 years |
| Neil John Stoddart | Director | 30 Apr 2018 | 1 Sept 2025 | British | 57 years |
| Neville John Trevor Bailey | Director | 14 Sept 1991 | 31 May 2003 | British | 73 years |
| Neville John Trevor Bailey | Director | 10 Jun 2003 | 16 Oct 2009 | British | 73 years |
| Norman Staniford | Director | 1 Jun 2003 | 29 Jun 2009 | British | 70 years |
| Patricia Angela Barnard | Director | 1 Apr 2001 | 19 Feb 2004 | British | 60 years |
| Patricia Angela Barnard | Secretary | 14 Jan 1999 | 19 Feb 2004 | British | - |
| Paul Joseph Mccann | Director | 14 Sept 1991 | 12 Sept 2013 | British | 74 years |
| Peter Blades | Director | 4 Mar 2005 | 29 Jun 2009 | British | 56 years |
| Peter Blades | Secretary | 17 Aug 2009 | 23 Apr 2014 | British | - |
| Peter James Blades | Director | 4 Oct 2013 | 19 Feb 2016 | British | 56 years |
| Richard Alexander Walbourn | Director | 1 May 2004 | 19 Feb 2016 | British | 61 years |
| Richard Graham Werth | Director | 2 Jan 1996 | 21 Mar 2014 | British | 66 years |
| Richard Graham Werth | Secretary | 14 Sept 1991 | 14 Jan 1999 | British | - |
| Richard Walbourn | Secretary | 19 Feb 2004 | 17 Aug 2009 | British | - |
| Shelley Caroline West | Director | 19 Jun 2007 | 29 Jun 2009 | British | 55 years |
| Stuart James Crossley | Director | 14 Sept 1991 | 14 Jan 1999 | British | 82 years |
| Terry Rene Roydon | Director | 8 Jun 2000 | 9 Jul 2002 | British | 80 years |