| Anthony Edward Collins | Director | 8 Dec 2010 | 11 Oct 2013 | British | 69 years |
| Barry Alexander Ralph Gerrard | Director | 4 Nov 2010 | 8 Dec 2010 | British | 69 years |
| Barry Alexander Ralph Gerrard | Secretary | 1 Mar 2007 | 4 Nov 2010 | British | - |
| Barry Alexander Ralph Gerrard | Secretary | 8 Dec 2010 | 31 Mar 2020 | British | - |
| Caroline Ann Drake | Secretary | 4 Nov 2010 | 8 Dec 2010 | - | - |
| Christopher Leslie Gibb | Director | 8 Dec 2010 | 11 Nov 2013 | British | 63 years |
| Diana Patricia Legge | Director | 4 Nov 1998 | 10 Mar 2000 | British | 68 years |
| Diana Patricia Legge | Secretary | 31 Aug 1995 | 10 Mar 2000 | British | - |
| Gordon Douglas Mccallum | Director | 22 Sept 2006 | 21 Feb 2007 | British | 66 years |
| Gordon Douglas Mccallum | Director | 21 Feb 2007 | 4 Nov 2010 | British | 66 years |
| Graham Charles Leech | Director | 8 Dec 2010 | 21 Dec 2016 | British | 64 years |
| Ian Steven Burroughs | Director | 4 Nov 1998 | 26 Oct 2001 | British | 72 years |
| Jane Elizabeth Margaret Phillips | Director | 31 Oct 2002 | 21 Feb 2007 | British | 52 years |
| Janice Susan Cook | Secretary | 6 Apr 1992 | 31 Aug 1995 | British | - |
| Jonathan Mark Cohen | Director | 4 Nov 2010 | 8 Dec 2010 | British | 53 years |
| Joshua Bayliss | Secretary | 31 Aug 2006 | 1 Mar 2007 | British | - |
| Mark Edward Whitehouse | Director | 2 Jun 2016 | 8 Dec 2019 | British | 47 years |
| Mark Frederick David Hill | Director | 30 Apr 2001 | 31 Oct 2002 | British | 58 years |
| Neil Micklethwaite | Director | 29 Nov 2019 | 5 Jul 2022 | British | 53 years |
| Patrick Charles Kingdon Mccall | Director | 21 Feb 2007 | 4 Nov 2010 | British | 62 years |
| Patrick John Mcgrath | Director | 2 Jun 2016 | 3 May 2018 | Irish | 61 years |
| Peter Gerardus Gram | Director | 10 Mar 2000 | 30 Apr 2001 | British | - |
| Peter Gerardus Gram | Secretary | 10 Mar 2000 | 31 Aug 2006 | British | - |
| Peter James Broadley | Director | 21 Dec 2016 | 13 Sept 2019 | British | 55 years |
| Philip Whittingham | Director | 1 Oct 2013 | 8 Dec 2019 | British | 55 years |
| Phillip Alan Bearpark | Director | 1 Oct 2013 | 21 Dec 2016 | British | 60 years |
| Richard Charles Nicholas Branson | Director | 31 Dec 1991 | 6 Dec 1999 | British | 76 years |
| Roger Patrick Flynn | Secretary | N/A | 6 Apr 1992 | British | - |
| Sarah Jane Copley | Director | 21 Dec 2016 | 8 Dec 2019 | British | 53 years |
| Stephen Thomas Matthew Murphy | Director | 17 Sept 1996 | 4 Nov 1998 | British | 70 years |
| Susannah Mary Louise Hall | Director | 30 Apr 2001 | 21 Feb 2007 | British | 61 years |
| Timothy Brendan Kavanagh | Director | 29 Nov 2019 | 27 Apr 2023 | British | 58 years |
| Trevor Michael Abbott | Director | 31 Dec 1991 | 9 Dec 1997 | British | 76 years |
| William Elliott Whitehorn | Director | 21 Feb 2007 | 1 Oct 2007 | British | 66 years |