| Amy Elizabeth Stirling | Director | 16 Jan 2017 | 27 Jan 2022 | British | 57 years |
| Andrew John Swaffield | Director | 10 Dec 2020 | 31 Aug 2023 | British | 59 years |
| Barry Alexander Ralph Gerrard | Secretary | 1 Mar 2007 | 31 Mar 2020 | British | - |
| Carla Rosaline Stent | Director | 4 Nov 2010 | 21 Jun 2013 | British | 55 years |
| Clive Atkinson | Director | 31 Mar 2010 | 30 Jun 2010 | British | 64 years |
| David Graham Charles Johnson | Director | 30 Jun 1997 | 27 Jul 1998 | British | 63 years |
| Derek Potts | Director | 31 Dec 1992 | 31 Dec 1993 | British | 68 years |
| Derek Potts | Secretary | 31 Dec 1992 | 31 Dec 1993 | British | - |
| Diana Patricia Legge | Secretary | 31 Aug 1995 | 30 Mar 2000 | British | - |
| Gordon Douglas Mccallum | Director | 11 Feb 1998 | 4 Nov 1998 | British | 66 years |
| Gordon Douglas Mccallum | Director | 4 Nov 1998 | 8 Jan 2015 | British | 66 years |
| Ian Steven Burroughs | Director | 4 Nov 1998 | 22 Nov 2001 | British | 72 years |
| Janice Susan Cook | Secretary | 31 Dec 1993 | 31 Aug 1995 | British | - |
| John Patrick Moorhead | Director | 16 Jun 2015 | 1 Jul 2016 | British | 51 years |
| Joshua Bayliss | Director | 13 Sept 2007 | 2 Apr 2010 | British | 53 years |
| Joshua Bayliss | Secretary | 31 Aug 2006 | 1 Mar 2007 | British | - |
| Lisa Victoria Thomas | Director | 5 Jul 2016 | 31 Oct 2020 | British | 59 years |
| Nicholas Anthony Robert Fox | Director | 21 Jun 2013 | 17 Sept 2015 | British | 56 years |
| Patrick Charles Kingdon Mccall | Director | 2 Sept 2005 | 4 Nov 2010 | British | 62 years |
| Peter Gerardus Gram | Secretary | 19 Nov 1999 | 6 Mar 2000 | British | - |
| Peter Gerardus Gram | Secretary | 6 Mar 2000 | 31 Aug 2006 | British | - |
| Richard Charles Nicholas Branson | Director | 31 Dec 1992 | 31 Jan 2003 | British | 76 years |
| Robert Harold Ferrers Devereux | Director | 31 Dec 1992 | 25 Feb 1993 | British | 71 years |
| Robert Pieter Blok | Director | 1 Aug 2013 | 17 Sept 2015 | British | 50 years |
| Stephen Thomas Matthew Murphy | Director | 27 Apr 1994 | 4 Nov 1998 | British | 70 years |
| Stephen Thomas Matthew Murphy | Director | 30 Nov 2001 | 2 Sept 2005 | British | 70 years |
| Steven Richard Bowker | Director | 5 Dec 2000 | 30 Nov 2001 | British | 60 years |
| Trevor Michael Abbott | Director | 31 Dec 1992 | 9 Dec 1997 | British | 76 years |
| William Elliott Whitehorn | Director | 5 Dec 2000 | 1 Oct 2007 | British | 66 years |