| Alan Duke Brown | Director | 21 Mar 2014 | 30 Apr 2018 | British | 66 years |
| Alan Kenneth Richards | Director | 1 Jul 2002 | 29 Jun 2009 | British | 67 years |
| Alastair Dineen | Director | 3 Apr 2007 | 2 Dec 2008 | British | 55 years |
| Allen William Smith | Director | 20 Dec 2006 | 13 Oct 2008 | British | 74 years |
| Colin Gabb | Director | 2 Jan 2003 | 31 Aug 2006 | British | 74 years |
| David Geoffrey Maurice Cull | Director | 21 Aug 2002 | 31 Aug 2006 | British | 79 years |
| Elaine Stratford | Director | 1 Apr 2002 | 31 May 2003 | British | 63 years |
| Gary Biggs | Director | 12 Sept 2007 | 29 Jun 2009 | British | 64 years |
| Geoffrey Murrain | Director | 1 Feb 2004 | 31 Aug 2006 | British | 72 years |
| Geoffrey Piers Banfield | Director | 13 Oct 2008 | 19 Feb 2016 | British | 58 years |
| Geoffrey Piers Banfield | Director | 1 Jun 2003 | 31 Aug 2006 | British | 58 years |
| Graham Alan Cunningham | Director | 21 Mar 2014 | 19 Feb 2016 | British | 52 years |
| John Anthony Kennedy | Director | 1 Apr 2002 | 31 Aug 2006 | British | 63 years |
| John Anthony Kennedy | Director | 29 Jun 2009 | 19 Feb 2016 | British | 63 years |
| John Bernard Kelly | Director | 1 Apr 2002 | 26 Mar 2009 | British | 62 years |
| John Graham Gunn Reid | Director | 21 Mar 2014 | 31 Oct 2018 | British | 62 years |
| Marcel John Coulon | Director | 20 May 2008 | 19 Feb 2016 | British | 62 years |
| Neil John Stoddart | Director | 30 Apr 2018 | 1 Sept 2025 | British | 57 years |
| Neville John Trevor Bailey | Director | 29 Oct 1991 | 1 Apr 2002 | British | 73 years |
| Neville John Trevor Bailey | Director | 1 Jun 2003 | 13 Aug 2007 | British | 73 years |
| Neville John Trevor Bailey | Director | 29 Jun 2009 | 16 Oct 2009 | British | 73 years |
| Nicola Michelle Dennis | Director | 25 Jul 2005 | 29 Jun 2009 | British | 56 years |
| Patricia Angela Barnard | Secretary | 14 Jan 1999 | 19 Feb 2004 | British | - |
| Richard Alexander Walbourn | Director | 1 May 2004 | 19 Feb 2016 | British | 61 years |
| Richard Anthony Smith | Director | 1 Apr 2002 | 22 Aug 2003 | British | 62 years |
| Richard Graham Werth | Director | 14 Jan 1999 | 21 Mar 2014 | British | 66 years |
| Richard Graham Werth | Secretary | 29 Oct 1991 | 14 Jan 1999 | British | - |
| Richard Walbourn | Secretary | 19 Feb 2004 | 21 Mar 2014 | British | - |
| Stuart James Crossley | Director | 29 Oct 1991 | 14 Jan 1999 | British | 82 years |