| Alex Simpson | Director | 26 Jun 2015 | 1 May 2018 | British | 53 years |
| Alexandra Clare Askew | Secretary | 30 Sept 2019 | 18 Jan 2024 | - | - |
| Alison Margaret Seabrooke | Director | 12 Mar 2012 | 20 Aug 2019 | British | 63 years |
| Andrew Murray | Director | 1 May 2018 | 8 Mar 2022 | American | 63 years |
| Angela Ann Geer | Director | 19 Mar 2012 | 19 Nov 2012 | British | 71 years |
| Anne Evelyn Dawson | Director | 19 Mar 2012 | 20 Dec 2013 | British | 67 years |
| Annmarie Rocks | Director | 22 Jan 2008 | 20 Sept 2019 | British | 56 years |
| Benjamin Wittenberg | Director | 1 Oct 2023 | 5 Jul 2024 | British | 49 years |
| Brian Boyle | Director | 1 Jan 2024 | 1 May 2024 | British | 53 years |
| Carolyn Heaney | Director | 9 Mar 2017 | 30 Sept 2020 | British | 58 years |
| Claudia Joan Mcvie | Director | 12 Sept 2023 | 25 Jul 2024 | British | 73 years |
| Clive Brian West | Director | 22 Jan 2008 | 19 Jan 2012 | British | 64 years |
| David Jack Wickert | Director | 22 Jan 2008 | 11 Jun 2015 | British | 84 years |
| Deborah Grass | Director | 22 Jan 2008 | 22 Mar 2012 | British | 60 years |
| Dominic Burch | Director | 19 Mar 2012 | 21 Mar 2016 | British | 52 years |
| Eliesabeth Anne Massey | Director | 24 Jan 2019 | 31 Dec 2020 | British | 58 years |
| Elisabeth Janet Sinclair Smith | Director | 27 Nov 2013 | 23 Feb 2016 | British | 65 years |
| Emily Georgina Elizabeth Harrison | Secretary | 1 May 2018 | 19 Jul 2019 | - | - |
| Emily Jane Neild | Director | 19 Mar 2012 | 21 Nov 2013 | British | 51 years |
| Emily Jane Neild | Director | 16 Feb 2015 | 17 Aug 2015 | British | 51 years |
| Emma Louise Fox | Director | 5 Dec 2008 | 25 May 2011 | British | 58 years |
| Francesca Lucy Haynes | Director | 23 Feb 2016 | 5 Dec 2016 | British | 44 years |
| Gerald Ernest Oppenheim | Director | 27 Sept 2013 | 15 Jun 2018 | British | 75 years |
| Helen Kathryn Selby | Director | 10 Jun 2022 | 9 Jun 2023 | British | 57 years |
| Helen Margaret Maritirossi | Director | 4 Jan 2010 | 17 Jan 2014 | British | 64 years |
| Helen Margaret Milford | Director | 23 Jun 2011 | 16 Feb 2015 | British | 59 years |
| James Mark Jefcoate | Director | 22 Oct 2010 | 20 Oct 2017 | English | 65 years |
| Jason Martin | Director | 2 Dec 2016 | 1 Oct 2023 | British | 57 years |
| Jessica Elisabeth Hodgson | Director | 1 Jun 2020 | 22 Jul 2022 | British | 49 years |
| Joanna Berry | Director | 25 Jan 2018 | 22 Feb 2018 | British | 58 years |
| Jodie Louise Tate | Director | 1 Feb 2021 | 7 Oct 2023 | British | 43 years |
| John Giles Cookman | Director | 22 Jan 2008 | 30 Dec 2022 | British | 81 years |
| Julie Ward | Secretary | 22 Jan 2008 | 29 Sept 2017 | British | - |
| Katherine Paterson | Director | 5 Dec 2008 | 20 Dec 2010 | British | 55 years |
| Kelly Jane Hart | Director | 1 Oct 2023 | 5 Jul 2024 | British | 48 years |
| Kristian Joseph Horabin | Director | 1 Jan 2024 | 5 Jul 2024 | British | 39 years |
| Lewis Oldroyd | Director | 1 Oct 2022 | 5 Jul 2024 | British | 30 years |
| Lorraine Alison Jackson | Director | 20 Dec 2013 | 14 Mar 2017 | British | 57 years |
| Lynne Tooms | Director | 23 May 2014 | 26 Oct 2016 | British | 54 years |
| Marie Anne Gill | Director | 22 Jan 2008 | 25 Jul 2008 | British | 69 years |
| Martin Edward Reynolds | Director | 22 Jan 2008 | 12 Jun 2009 | British | 70 years |
| Mary Aileen Mehigan | Director | 22 Jan 2008 | 11 Mar 2008 | British | 63 years |
| Matthew Emmanuel Leach | Director | 1 Oct 2023 | 5 Jul 2024 | British | 57 years |
| Meghan Farren | Director | 8 Mar 2022 | 14 Jul 2022 | American | 46 years |
| Michael John Bland Snell | Director | 22 Jan 2008 | 3 Oct 2008 | British | 62 years |
| Munazah Zareen Dar | Director | 27 Nov 2013 | 5 Jan 2016 | British | 41 years |
| Nicole Tallant | Director | 17 Feb 2017 | 16 Nov 2017 | British | 36 years |
| Patricia Anne Mitchell | Director | 1 Jul 2020 | 1 Oct 2023 | British | 69 years |
| Paul Anthony Wright | Director | 24 Mar 2010 | 17 Jan 2014 | British | 59 years |
| Paul Kelly | Director | 5 Dec 2008 | 12 Sept 2014 | British | 66 years |
| Paul Rowland | Director | 16 Mar 2016 | 26 Oct 2016 | British | 57 years |
| Sarah Georgina Ashby | Director | 1 Mar 2023 | 5 Jul 2024 | British | 39 years |
| Simon James Ward Lewis | Director | 1 Jun 2020 | 1 Jan 2024 | British | 48 years |
| Susan Hennessey | Director | 1 Jun 2020 | 1 Oct 2023 | British | 66 years |