| Alasdair Christopher Gillies | Director | 2 Sept 2002 | 30 Jun 2008 | British | 68 years |
| Amanda Louise Knott | Secretary | 31 Dec 2007 | 22 May 2013 | British | - |
| Andrew John Smart | Secretary | 9 Aug 1991 | 26 Nov 1991 | British | - |
| Ann Claire Blundell | Secretary | 22 May 2013 | 10 Feb 2014 | - | - |
| Brian Michael Thomas | Director | 21 Nov 1996 | 3 Aug 1998 | British | 74 years |
| Carroll Michael Raphael | Director | 9 Aug 1991 | 31 Dec 2009 | British | 79 years |
| Charlotte Denise Murphy | Director | 1 May 2018 | 28 Mar 2022 | British | 44 years |
| Christopher Hugh Buckley Gibson | Secretary | 26 Nov 1991 | 31 Dec 2007 | British | - |
| Corina Katherine Ross | Secretary | 4 Feb 2011 | 22 May 2013 | British | - |
| Derek Charles Heath | Director | 9 Aug 1991 | 25 Oct 1990 | British | 92 years |
| Helen Frances Leigh Rogers | Secretary | 14 Jul 2008 | 2 Dec 2011 | British | - |
| Ian Nicholas Lovett | Director | 9 Aug 1991 | 2 Sept 2002 | British | 82 years |
| Ian Ritchie | Secretary | 22 May 2013 | 10 Feb 2014 | - | - |
| James Douglas Sutherland | Director | 28 Jun 2013 | 20 Oct 2017 | British | 52 years |
| Jayne Michelle Meacham | Secretary | 31 Dec 2007 | 2 May 2008 | British | - |
| Jonathan Vaughan-williams | Director | 25 Mar 2014 | 28 Apr 2017 | British | 59 years |
| Neil James Evans | Director | 30 Jun 2008 | 25 Mar 2014 | British | 69 years |
| Nigel Lowe | Director | 31 Dec 2009 | 28 Jun 2013 | British | 74 years |
| Philip John Lampshire | Director | 20 Oct 2017 | 13 Nov 2017 | British | 72 years |
| Philip Smith | Director | 26 Nov 1991 | 21 Nov 1996 | British | 79 years |
| Shayne Paul Deighton | Director | 3 Aug 1998 | 20 Dec 2000 | British | 67 years |
| Timothy James Grant | Director | 30 May 2017 | 22 Aug 2023 | British | 62 years |
| Victoria Louise De Temple | Director | 13 Nov 2017 | 1 May 2018 | British | 48 years |
