| Anoop Kang | Director | 7 Jan 2016 | 21 Dec 2016 | British | 51 years |
| Bethan Anne Elizabeth Melges | Director | 16 Jul 2015 | 9 Sept 2019 | British | 50 years |
| Bethan Melges | Secretary | 16 Jul 2015 | 9 Sept 2019 | - | - |
| Christopher John Higham | Secretary | 1 Oct 1992 | 5 Apr 2001 | British | - |
| Claudio Veritiero | Director | 27 Jun 2011 | 17 Feb 2014 | British | 52 years |
| Colin Stewart Porton | Director | 2 Apr 2001 | 20 Jul 2006 | British | 71 years |
| David Edward Angus | Director | 2 Apr 2001 | 5 Feb 2004 | British | 77 years |
| Deborah Pamela Hamilton | Secretary | 8 Aug 2011 | 22 Sept 2014 | - | - |
| Duncan Valentine Brand | Director | 1 Oct 1992 | 5 Apr 2001 | British | 84 years |
| Ian Michael Lawson | Director | 26 Jul 2006 | 14 Dec 2011 | British | 68 years |
| Ian Paul Woods | Director | 2 Apr 2001 | 28 Jun 2002 | British | 68 years |
| Ian Paul Woods | Secretary | 2 Apr 2001 | 28 Jun 2002 | British | - |
| John Reginald Bradley | Director | 15 Jul 2002 | 1 Jul 2008 | British | 76 years |
| Jonathan David Wilkinson | Director | 17 Feb 2014 | 16 Oct 2015 | British | 57 years |
| Kevin John Mccarthy | Director | 2 Apr 2001 | 15 May 2003 | British | 71 years |
| Martin Peter Weston Scarth | Director | 2 Apr 2001 | 7 May 2003 | British | 82 years |
| Matthew Armitage | Director | 27 May 2015 | 16 Jul 2015 | British | 53 years |
| Matthew Armitage | Secretary | 22 Dec 2014 | 16 Jul 2015 | - | - |
| Neil John Chidgey | Director | 1 Jul 2008 | 27 May 2015 | British | 63 years |
| Neil John Chidgey | Secretary | 15 Jul 2002 | 8 Aug 2011 | British | - |
| Peter Douglas Farnan | Director | 2 Apr 2001 | 1 Jan 2004 | British | 67 years |
| Philip Higgins | Secretary | 9 Sept 2019 | 24 Sept 2021 | - | - |
| Philip Higgins | Director | 9 Sept 2019 | 24 Sept 2021 | British | 56 years |
| Richard John Charles Turner | Director | 1 Oct 1992 | 5 Apr 2001 | British | 84 years |
| Simon David Martle | Director | 26 Oct 2018 | 31 Oct 2019 | British | 55 years |
| Thomas Lee Foreman | Director | 21 Dec 2016 | 26 Oct 2018 | British | 49 years |