| Andrew George Parker | Director | 10 Jan 2011 | 15 Sept 2017 | British | 57 years |
| Andrew John Williams | Director | 1 Jan 2015 | 11 May 2021 | British | 59 years |
| Anthony Nicholas Greatorex | Director | 1 Mar 2015 | 30 Sept 2018 | British | 58 years |
| Brian David Mcarthur-muscroft | Director | 1 Jun 2022 | 23 Jul 2025 | British | 63 years |
| Carolyn Julie Fairbairn | Director | 13 May 2014 | 27 Oct 2015 | British | 66 years |
| Christopher George Sellers | Director | 1 Jan 2017 | 23 Jan 2018 | British | 58 years |
| Claire Miles | Director | 12 May 2023 | 31 Dec 2023 | British | 54 years |
| Clive Richard Ward | Director | 14 May 1992 | 12 Apr 1994 | British | 81 years |
| Colin John Welsh | Director | 24 Feb 1995 | 31 May 1997 | British | 80 years |
| Dawn Marriott-sims | Director | 1 Jan 2014 | 9 Nov 2016 | British | 55 years |
| Derek Fowler | Director | 14 May 1992 | 31 Oct 2000 | British | 97 years |
| Eric Walters | Director | 31 Oct 2000 | 1 Jan 2010 | British | 82 years |
| Francesca Anne Todd | Secretary | 12 Nov 2014 | 31 Dec 2021 | - | - |
| Gillian Veronica Sheldon | Director | 1 Sept 2012 | 28 Feb 2021 | British | 59 years |
| Gordon Alexander Boyd | Director | 16 Nov 2020 | 12 May 2021 | British | 66 years |
| Gordon Mark Hurst | Director | 24 Feb 1995 | 28 Feb 2015 | British | 64 years |
| Gordon Mark Hurst | Secretary | 14 May 1992 | 22 Mar 1996 | British | - |
| Gordon Mark Hurst | Secretary | 30 Nov 1998 | 12 Nov 2014 | British | - |
| Ian Clifford Powell | Director | 1 Sept 2016 | 10 May 2022 | British | 70 years |
| Janine Evelyn Goodchild | Director | 1 Jul 2022 | 31 Dec 2023 | British | 47 years |
| John Arthur Jasper | Director | 14 May 1992 | 9 Feb 1994 | British | 86 years |
| John Harold Cresswell | Director | 17 Nov 2015 | 31 Mar 2023 | British | 65 years |
| John Paul Maurice Bowtell | Director | 28 Jun 2010 | 31 May 2017 | British | 58 years |
| John Vernon Brameld | Director | 14 May 1992 | 1 Mar 1996 | British | 85 years |
| Jonathan James Muschamp Lewis | Director | 1 Dec 2017 | 17 Jan 2024 | British | 65 years |
| Joseph Murphy | Director | 1 Jul 2019 | 30 Jun 2022 | Irish | 39 years |
| Kenneth Au | Secretary | 6 Jun 1996 | 30 Nov 1998 | British | - |
| Lucy Jeanne Neville-rolfe | Director | 6 Dec 2017 | 14 Dec 2021 | British | 73 years |
| Lyndsay Margaret Browne | Director | 1 Jul 2019 | 30 Jun 2022 | British | 56 years |
| Maggi Bell | Director | 1 Aug 2008 | 31 Dec 2016 | British | 71 years |
| Martin Keith Bolland | Director | 1 Mar 2008 | 31 Dec 2016 | British | 70 years |
| Martina Ann King | Director | 1 Jan 2005 | 12 May 2014 | British | 65 years |
| Matthew Lester | Director | 1 Mar 2017 | 30 Jun 2022 | British | 63 years |
| Nigel David Wilson | Director | 12 May 2010 | 31 Dec 2012 | British | 70 years |
| Patrick Michael Doyle | Director | 22 Jul 1994 | 31 Mar 2012 | British | 76 years |
| Paul Richard Martin Pindar | Director | 14 May 1992 | 28 Feb 2014 | British | 67 years |
| Peter Edward Blackburn Cawdron | Director | 1 Sept 1997 | 30 Sept 2008 | British | 83 years |
| Richard Michael Benton | Director | 14 May 1992 | 1 Jan 1998 | British | 69 years |
| Richard Swan | Secretary | 1 Jan 2022 | 28 Feb 2022 | - | - |
| Robert Harding Alcock | Director | 4 Nov 1993 | 24 Feb 2005 | British | 85 years |
| Rodney Malcolm Aldridge | Director | 14 May 1992 | 31 Jul 2006 | British | 79 years |
| Simon Christopher Pilling | Director | 1 Aug 2006 | 10 Jan 2011 | British | 64 years |
| Simon John Stock | Director | 1 Aug 1995 | 6 Jun 1996 | British | 73 years |
| Simon John Stock | Secretary | 22 Mar 1996 | 6 Jun 1996 | British | - |
| Simon Patrick Butcher | Director | 1 Jan 2019 | 16 Nov 2020 | British | 59 years |
| Terence James Thomas Of Macclesfield | Director | 24 Feb 1998 | 10 Feb 1999 | British | 89 years |
| Timothy Peter Weller | Director | 12 May 2021 | 9 Aug 2024 | British | 63 years |
| Victor Gysin | Director | 10 Jan 2011 | 18 Dec 2017 | British | 61 years |
| William Grimsey | Director | 9 Oct 2006 | 31 Jul 2010 | British | 74 years |