| Achal Prakash Bhuwania | Director | 6 Oct 2021 | 13 Dec 2022 | British | 46 years |
| Adrian James Henry Ewer | Director | 24 Aug 1998 | 31 Oct 2001 | British | 72 years |
| Alan Campbell Hogg | Director | 1 Sept 2007 | 20 Oct 2009 | British | 63 years |
| Alan Robert Chaney | Director | 1 Oct 1997 | 28 Mar 2002 | British | 82 years |
| Andrew Erskine Friend | Director | 13 Sept 1999 | 8 Sept 2006 | British | 73 years |
| Andrew Gilbert Charlesworth | Director | 1 Sept 2007 | 24 Sept 2010 | British | 54 years |
| Andrew James Ballsdon | Director | 1 Sept 2007 | 31 Jan 2008 | British | 60 years |
| Andrew Simon Taylor | Director | 1 Dec 1999 | 24 Dec 2000 | British | 61 years |
| Andrew Stephen Annesley Vachell | Director | 13 Dec 2022 | 20 Jan 2025 | British | 51 years |
| Anthony Charles Roper | Director | 1 Oct 1997 | 15 Mar 2006 | British | 65 years |
| Ben Robert Loomes | Director | 22 Apr 2022 | 13 Jul 2022 | British | 48 years |
| Bernardo Maria De Sousa Holstein Salgado Nogueira | Director | 6 Oct 2021 | 22 Apr 2022 | Portuguese | 34 years |
| Brett Johannes Theodorus Pieterse | Director | 4 Nov 2011 | 7 Jul 2016 | British,south African | 50 years |
| Bryan Scott Gregory | Director | 1 Jan 1992 | 1 Mar 1993 | British | 85 years |
| Carolyn Tracy Cattermole | Secretary | 27 Sept 2012 | 29 Mar 2018 | British | - |
| Carolyn Tracy Cattermole | Director | 16 Aug 2013 | 29 Mar 2018 | British | 65 years |
| Christopher Brian Waples | Director | 1 Sept 2007 | 31 Jan 2019 | British | 66 years |
| Clare Underwood | Director | 12 Sept 2018 | 6 Oct 2021 | British | 53 years |
| David George Conlon | Director | 2 Aug 2024 | 14 May 2025 | British | 47 years |
| David John Morice Hartshorne | Director | 1 Sept 2007 | 15 Jan 2008 | British | 71 years |
| David Martin Lowry | Director | 10 Aug 2020 | 21 Oct 2020 | British | 44 years |
| David Michael Hardy | Director | 1 Sept 2007 | 16 Aug 2013 | British | 68 years |
| Denis Christopher Madden | Director | 1 Nov 1994 | 1 Oct 1997 | British | 85 years |
| Derek Potts | Director | 3 Aug 2001 | 31 Mar 2017 | British | 67 years |
| Derek William Featherstone | Secretary | 1 Oct 1997 | 1 Nov 1999 | British | - |
| Emily Martin | Secretary | 31 May 2019 | 3 Feb 2022 | - | - |
| Florence Marie Francoise Barras | Director | 24 Aug 1998 | 28 Jun 2002 | British,french | 61 years |
| Gary Stephen Lucas | Director | 1 Sept 2007 | 16 Aug 2013 | British | 67 years |
| Ian Joseph Wells | Director | 31 May 1991 | 30 Jun 2009 | British | 74 years |
| James Armstrong | Director | 5 Jul 1993 | 13 Sept 1999 | British | 86 years |
| James Haydn Abbott | Director | 13 Jul 2022 | 17 Apr 2025 | British | 46 years |
| James Kerr | Director | 14 Jan 2009 | 18 Jan 2013 | British | 61 years |
| James Martin Storer | Director | 27 Jan 2003 | 24 Sept 2003 | British | 68 years |
| John Arthur Renshaw | Director | 31 May 1991 | 31 Dec 1991 | British | 96 years |
| John Henry Needham | Director | 14 Dec 2020 | 14 Jan 2021 | British | 61 years |
| John Martin Kirby Laing | Director | 31 May 1991 | 1 Oct 1997 | British | 83 years |
| Jon Rushton | Director | 31 May 1991 | 31 Oct 1994 | British | 92 years |
| Jordan Eliott Field | Director | 13 Dec 2022 | 24 Oct 2023 | British | 37 years |
| Leslie Richard Angell | Director | 31 May 1991 | 1 Oct 1997 | British | 80 years |
| Leslie Richard Angell | Secretary | 31 May 1991 | 1 Oct 1997 | British | - |
| Luciana Germinario | Director | 31 May 2019 | 31 Jul 2020 | English | 51 years |
| Maria Bernadette Lewis | Secretary | 6 Mar 2009 | 4 Sept 2015 | British | - |
| Michael Tiongson Rodriguez | Director | 3 Aug 2001 | 29 Apr 2005 | Australian | 63 years |
| Oleg Shamovsky | Director | 6 Oct 2021 | 22 Apr 2022 | Canadian | 43 years |
| Patrick Francis John O'donnell Bourke | Director | 17 Aug 2011 | 9 May 2019 | British | 68 years |
| Peter Alan James Couldery | Director | 1 Sept 2007 | 31 Oct 2009 | British | 66 years |
| Peter Bartholomew O'flaherty | Director | 22 Apr 2022 | 15 May 2025 | Irish | 52 years |
| Peter Geoffrey Shell | Secretary | 12 Apr 2002 | 23 Mar 2007 | British | - |
| Philip Naylor | Secretary | 4 Sept 2015 | 18 Jan 2019 | - | - |
| Richard Daniel Knight | Director | 26 Jun 2023 | 1 Aug 2024 | British | 51 years |
| Richard Weston | Director | 1 Oct 1997 | 30 Apr 2008 | British | 77 years |
| Robert Alec Wood | Director | 31 May 1991 | 1 Oct 1997 | British | 83 years |
| Robert Memmott | Director | 14 Jan 2021 | 6 Oct 2021 | British | 52 years |
| Roger Keith Miller | Secretary | 1 Nov 1999 | 12 Apr 2002 | British | - |
| Roger Keith Miller | Secretary | 23 Mar 2007 | 27 Sept 2012 | British | - |
| Scott Springett | Director | 13 Jul 2022 | 27 Apr 2023 | British | 57 years |
| Sion Laurence Jones | Director | 6 Oct 2021 | 15 May 2025 | British | 51 years |
| Stuart Martin Colvin | Director | 7 Jul 2016 | 6 Oct 2021 | British | 53 years |
| Tanja Atanasova | Director | 27 Apr 2023 | 16 Apr 2025 | Bulgarian | 40 years |
| Victoria Burnett | Secretary | 4 Feb 2022 | 14 Dec 2022 | - | - |