| Anthony Stephen Woodward | Director | 1 Feb 2003 | 31 Dec 2014 | British | 73 years |
| Charmian Adele Leatt | Director | 18 Oct 1992 | 21 Apr 2011 | British | 66 years |
| Charmian Adele Leatt | Secretary | 18 Oct 1992 | 21 Apr 2011 | British | - |
| Christopher Julian Moseley Kinsey | Director | 20 Sept 2004 | 11 May 2021 | British | 67 years |
| Craig Moore | Director | 30 Sept 2011 | 18 Oct 2021 | British | 56 years |
| David D Arcy Hughes | Director | 26 Apr 2001 | 30 Apr 2006 | British | 82 years |
| David Steel Barnes James | Director | 11 Dec 1998 | 28 Apr 2000 | British | 77 years |
| Dean Patrick Drew | Director | 30 Sept 2011 | 25 Jul 2014 | British | 65 years |
| Jane Caroline Oakland | Director | 20 Sept 2004 | 31 May 2006 | British | 72 years |
| Julia Mary Wood | Director | 16 May 1997 | 28 Apr 2000 | British | 66 years |
| Julian Charles Kester Hamblin | Director | 29 Jan 2001 | 31 Dec 2019 | British | 65 years |
| Kenneth Andrew Paton | Director | 26 Nov 2008 | 28 Feb 2014 | British | 58 years |
| Kim Helen Walker | Director | 29 Jul 1994 | 10 Feb 1995 | British | 63 years |
| Laurence James | Director | 20 Sept 2004 | 21 Apr 2005 | British | 75 years |
| Matthew Alan Heath | Director | 4 May 1995 | 15 Jul 1999 | British | 60 years |
| Michael John Williams | Director | 18 Oct 1992 | 30 Apr 2010 | British | 77 years |
| Moray Charles Livingstone Macpherson | Director | 19 Aug 1999 | 18 Jan 2001 | British | 67 years |
| Nicholas Huw Barwood | Director | 19 Aug 1999 | 20 Oct 2021 | British | 63 years |
| Nicholas John Page | Director | 1 May 1998 | 30 Apr 2018 | British | 70 years |
| Nicola Heidi Martienssen | Director | 23 May 1994 | 12 Jan 1996 | British | 62 years |
| Paul John Stockley | Director | 19 Jun 2007 | 31 Oct 2019 | British | 59 years |
| Peter Eric Angus Dempster | Director | 7 Jul 2000 | 29 Jun 2001 | British | 67 years |
| Richard Geoffrey West | Director | 18 Oct 1992 | 8 Apr 1994 | British | 85 years |
| Richard George Coombs | Director | 18 Oct 1992 | 23 May 1994 | British | 72 years |
| Richard Juxon Cobb | Director | 1 Feb 2003 | 31 Dec 2009 | British | 57 years |
| Roger James Acock | Director | 18 Oct 1992 | 24 Sept 2003 | English | 71 years |
| Simon Patrick Hewes | Director | 16 Jul 1998 | 24 Oct 2023 | British | 66 years |
| Steven Eric Paul Hadley | Director | 6 Aug 2007 | 30 Sept 2010 | British | 54 years |
| Thomas Bernard Phipps | Director | 18 Nov 1996 | 30 Sept 2011 | British | 65 years |
| Timothy David Jackman | Director | 18 Jan 2001 | 17 Sept 2007 | British | 62 years |
| Timothy David Jackman | Secretary | 1 Oct 1996 | 17 Sept 2007 | British | - |
| Timothy George Baily | Director | 22 Feb 2005 | 30 Mar 2009 | British | 66 years |
| Timothy James Burbidge | Director | 30 Mar 2009 | 22 Sept 2021 | British | 59 years |