| Alan Michael Holland | Director | 23 Mar 2012 | 30 Jun 2023 | British | 51 years |
| Andrew John Pilsworth | Director | 5 Oct 2012 | 31 Dec 2023 | British | 51 years |
| Andrew Stephen Gulliford | Director | 3 Nov 2004 | 24 Oct 2008 | British | 63 years |
| Andrew Stephen Gulliford | Director | 4 Oct 2012 | 30 Jun 2023 | British | 63 years |
| Ann Octavia Peters | Director | 30 Jun 2015 | 31 Dec 2023 | British | 56 years |
| David Crawford Bridges | Director | 24 Oct 2008 | 23 Mar 2012 | British | 58 years |
| David Edmund Frederick Simons | Director | 1 Jun 1992 | 2 Oct 2002 | British | 85 years |
| David John Rivers Sleath | Director | 1 Jan 2006 | 22 Jun 2009 | British | 64 years |
| David Richard Proctor | Director | 18 Nov 2020 | 31 Dec 2023 | British | 52 years |
| Derek Robert Wilson | Director | 1 Jun 1992 | 4 Nov 2002 | British | 81 years |
| Elizabeth Ann Blease | Secretary | 13 Oct 2008 | 3 Nov 2021 | Other | - |
| Gareth John Osborn | Director | 31 Aug 2010 | 31 Dec 2019 | British | 63 years |
| Gerald Nigel Mobbs | Director | 1 Jun 1992 | 21 Sept 1999 | British | 88 years |
| Hugh Linklater Thomson | Director | 1 Jun 1992 | 31 Aug 1998 | British | 80 years |
| Ian Calvert Sutcliffe | Director | 22 Jun 2008 | 30 Mar 2011 | British | 66 years |
| John Anthony Nicholas Heawood | Director | 4 Nov 1996 | 4 Jul 2008 | British | 72 years |
| John Robert Probert | Secretary | 1 Jun 1992 | 8 Jul 2008 | British | - |
| John Stephen Philip Keogan | Director | 20 Jul 1992 | 3 Oct 1997 | British | 71 years |
| Julia Foo | Secretary | 3 Nov 2021 | 23 May 2023 | - | - |
| Kevin John O'connor | Director | 24 Oct 2008 | 11 Sept 2009 | British | 64 years |
| Laurence Yolande Giard | Director | 4 Oct 2012 | 30 Jun 2015 | French | 55 years |
| Philip Anthony Redding | Director | 24 Oct 2008 | 31 Jan 2020 | British | 57 years |
| Richard David Kingston | Director | 9 Jul 1996 | 31 Dec 2006 | British | 77 years |
| Roger William Carey | Director | 1 Jun 1992 | 30 Apr 1996 | British | 81 years |
| Simon Andrew Carlyon | Director | 22 Jun 2009 | 4 Oct 2012 | Australian | 52 years |
| Simon Christian Pursey | Director | 30 Jun 2015 | 16 Mar 2020 | British | 50 years |
| Siva Shankar | Director | 31 Dec 2006 | 24 Oct 2008 | British | 55 years |
| Stephen Mark Bailey | Director | 21 May 1993 | 31 Oct 2007 | British | 70 years |
| Valerie Ann Lynch | Secretary | 8 Jul 2008 | 13 Oct 2008 | British | - |
| Vanessa Kate Simms | Director | 24 Oct 2008 | 21 Nov 2011 | British | 50 years |