| Adrian Patrick White | Director | 1 Jul 2013 | 13 Jul 2015 | British | 59 years |
| Alan Edward Moore | Director | 1 Aug 1998 | 15 Mar 2002 | British | 90 years |
| Alan Peter Woods | Director | 1 Mar 2002 | 26 Mar 2003 | British | 75 years |
| Alex Moore | Director | 13 Jun 2018 | 4 May 2020 | British | 47 years |
| Amanda Louise Dennis | Director | 30 Mar 2022 | 1 Jul 2024 | British | 52 years |
| Andrew John Naylor | Director | 16 Mar 2017 | 6 May 2020 | British | 51 years |
| Andrew Philip Farthing | Director | 21 Sept 2004 | 25 May 2006 | British | 62 years |
| Archibald Hugh Duberly | Director | 1 Nov 1995 | 28 Feb 2002 | British | 84 years |
| Barry Graham Saint | Director | 16 Jun 1995 | 30 Jun 1999 | British | 87 years |
| Bruce Martin | Director | 15 Mar 2002 | 1 Jul 2003 | British | 66 years |
| Charles Henry Plumb | Director | 12 Feb 1993 | 30 Mar 1995 | British | 101 years |
| Danielle Kara Reed | Director | 13 Mar 2014 | 30 Jul 2015 | British | 54 years |
| David Alan Walker | Director | 12 Feb 1993 | 18 Nov 1994 | British | 87 years |
| David Alexander Cospatrick Home | Director | 26 Sept 1991 | 12 Feb 1993 | British | 83 years |
| David Dermot Hennessey | Secretary | 29 Sept 2016 | 8 Jan 2024 | - | - |
| David John Postings | Director | 2 Feb 2005 | 30 Jun 2007 | British | 66 years |
| David Michael Singleton | Director | 15 Mar 2002 | 10 Mar 2004 | British | 70 years |
| David Newsum | Director | 15 Mar 2002 | 5 Jan 2006 | British | 77 years |
| David William Hardy | Director | 26 Sept 1991 | 12 Feb 1993 | British | 96 years |
| Deborah Ann Saunders | Secretary | 1 Jun 1996 | 6 Jan 2010 | Other | - |
| Douglas Alexander Malcolm | Director | 7 May 2024 | 25 Sept 2024 | British | 56 years |
| Emma Peake | Secretary | 29 Jan 2016 | 29 Sept 2016 | - | - |
| Francis William Wingate Pemberton | Director | 26 Sept 1991 | 11 Sept 1991 | British | 110 years |
| Fraser Mckenzie Sime | Director | 3 Sept 2015 | 12 Apr 2017 | British | 55 years |
| Gareth David Oakley | Director | 3 Sept 2015 | 26 Sept 2018 | British | 53 years |
| Gerald Oliver Soloman | Director | 15 Apr 1993 | 16 Jun 1995 | British | 91 years |
| Hans-wolfgang Main | Secretary | 6 Apr 1994 | 1 Jun 1996 | British | - |
| Henry Uvedale Antrobus Lambert | Director | 26 Sept 1991 | 12 Feb 1993 | British | 101 years |
| Howard Morton Davies | Director | 1 Jul 2003 | 1 Feb 2005 | British | 73 years |
| Hugh Rowland Griffiths | Director | 11 Dec 2015 | 10 Apr 2018 | British | 61 years |
| Ian Robert Callaghan | Director | 14 Jun 2016 | 12 Jul 2017 | British | 54 years |
| Jane Winsor | Director | 14 Mar 2013 | 13 Jun 2016 | British | 65 years |
| Jennifer Elizabeth Mathias | Director | 10 Apr 2007 | 5 Jan 2010 | British | 52 years |
| John Lionel Kaye | Director | 26 Sept 1991 | 6 Apr 1993 | British | 92 years |
| John Mcgoldrick | Director | 21 Sept 2004 | 30 Apr 2012 | British | 71 years |
| John Roundell Selborne | Director | 26 Sept 1991 | 15 Mar 2002 | British | 86 years |
| John Thomas Davies | Director | 12 Feb 1993 | 31 Oct 1994 | British | 93 years |
| John Thomas Davies | Director | 31 Mar 1995 | 31 Jul 1998 | British | 93 years |
| Jonathan Edward Allright | Director | 2 Jun 2010 | 16 Mar 2017 | British | 61 years |
| Keith Softly | Director | 30 May 2022 | 24 May 2024 | British | 49 years |
| Kerry Elizabeth Mcdermott | Secretary | 11 Dec 2015 | 29 Jan 2016 | - | - |
| Lee Adrian Reeves | Director | 2 Jun 2020 | 30 May 2022 | British | 55 years |
| Malcolm Sydney Hayes | Director | 5 Jan 2010 | 31 Dec 2013 | British | 66 years |
| Martin John Harper | Director | 16 Oct 1991 | 18 Feb 1993 | British | 101 years |
| Matthew Alastair Leonard Packham | Director | 14 Jun 2017 | 11 Sept 2024 | British | 55 years |
| Michael David Milroy Franklin | Director | 26 Sept 1991 | 12 Feb 1993 | British | 99 years |
| Michael Harry Rex Thompson | Director | 18 Nov 1994 | 30 Mar 1995 | British | 95 years |
| Nicholas Alan Nolan Laird | Director | 28 Jun 2019 | 1 Mar 2021 | British | 42 years |
| Nigel Jeffrey Martin Ingram | Director | 28 Jul 2020 | 2 Feb 2023 | British | 63 years |
| Paul Andrew Gordon | Director | 26 Sept 2018 | 6 Nov 2024 | British | 59 years |
| Paul Kempster | Director | 7 Jan 2025 | 20 Mar 2025 | British | 54 years |
| Paul Nicholas Spencer | Director | 7 Jun 2007 | 12 Mar 2019 | British | 63 years |
| Peter Charles Radley | Director | 1 Jul 1999 | 28 Feb 2002 | British | 78 years |
| Ricardo Vásquez | Secretary | 17 Jun 2013 | 19 Nov 2015 | - | - |
| Richard David Francis Bagley | Secretary | 26 Sept 1991 | 6 Apr 1994 | British | - |
| Robin Arthur Elidyr Herbert | Director | 26 Sept 1991 | 12 Feb 1993 | British | 92 years |
| Sharon Noelle Slattery | Secretary | 6 Jan 2010 | 17 Jun 2013 | - | - |
| Simon Alexander Gourlay | Director | 26 Sept 1991 | 28 Feb 2002 | British | 92 years |
| Simon Andrew Featherstone | Director | 18 Jul 2007 | 16 Sept 2010 | British | 58 years |
| Stuart Haycock | Director | 10 Apr 2018 | 5 Jun 2024 | British | 44 years |
| Tim Revell Porter | Director | 1 Jul 2003 | 30 Jun 2013 | British | 61 years |
| Victoria Anne Turner | Director | 3 Oct 2017 | 1 Mar 2018 | British | 46 years |