| Amanda Furlong | Director | 1 Oct 2013 | 3 Dec 2020 | British | 51 years |
| Andrew John Cooper | Director | 1 Nov 2007 | 31 May 2019 | British | 68 years |
| Anne Cnossen | Director | 9 Aug 2018 | 1 Oct 2019 | Dutch | 61 years |
| Benjamin James Taylor Rule | Director | 17 Oct 2016 | 13 Oct 2017 | British | 52 years |
| Benjamin Simkin | Director | 31 May 2019 | 1 Feb 2021 | British | 47 years |
| Biccor Ltd | Corporate Nominee Secretary | 22 Mar 2002 | 22 Mar 2002 | United Kingdom | - |
| Christopher Derek Dyne Burchell | Director | 10 Aug 2016 | 9 Oct 2020 | British | 53 years |
| Christopher Paul Booth | Director | 22 Feb 2024 | 31 Jul 2025 | British | 44 years |
| Colette Lugar-mawson | Director | 13 Dec 2021 | 12 Aug 2024 | British | 48 years |
| David Andrew Watkin | Director | 14 Apr 2008 | 14 Apr 2008 | Irish | 58 years |
| David Andrew Watkin | Director | 1 Apr 2009 | 26 May 2017 | Irish | 58 years |
| David Christopher John Applegarth | Director | 8 Feb 2006 | 1 Jan 2013 | British | 73 years |
| David Paul Turner | Secretary | 22 Mar 2002 | 18 Jan 2005 | British | - |
| Dennis Henry Baker | Director | 17 Apr 2008 | 1 Oct 2013 | British | 79 years |
| Desmond Peter Lowe | Director | 20 Apr 2017 | 10 Jul 2020 | British | 63 years |
| Duncan Mcdonald | Nominee Director | 22 Mar 2002 | 22 Mar 2002 | British | 62 years |
| Elizabeth Anne Davies | Secretary | 12 Jan 2007 | 16 Dec 2013 | British | - |
| Elizabeth Anne Thorpe | Secretary | 18 Jan 2005 | 12 May 2006 | British | - |
| Euan Alexander Robert Cameron | Director | 22 Mar 2002 | 31 Dec 2003 | British | 73 years |
| Gillian Ingham | Director | 9 Oct 2020 | 3 Feb 2023 | British | 58 years |
| Harjinder Nagra Singh | Director | 6 Oct 2023 | 29 Aug 2025 | British | 57 years |
| Helen Jayne Walker | Director | 13 Sept 2010 | 31 Aug 2013 | British | 54 years |
| Jeremy Richard Charles Higgins | Director | 17 Apr 2008 | 7 Jul 2017 | British | 62 years |
| Joanne Macphail | Director | 31 May 2017 | 29 Nov 2019 | British | 49 years |
| John Virtue | Secretary | 12 May 2006 | 12 Jan 2007 | British | - |
| Jon Fenn | Director | 13 Aug 2021 | 7 Apr 2022 | British | 48 years |
| Jonathan Luke Roberts | Director | 1 Oct 2010 | 3 Jul 2020 | British | 48 years |
| Lee Garreth Paxton | Director | 12 Jun 2018 | 12 Jul 2022 | British | 43 years |
| Lorna Edwards | Secretary | 16 Dec 2013 | 12 Jun 2020 | - | - |
| Maria Francesca Earl | Director | 13 Sept 2010 | 4 Nov 2016 | British | 64 years |
| Mark Francis Goodall | Director | 28 Apr 2023 | 20 Feb 2024 | British | 46 years |
| Mary Elisabeth Courtney Hewitt | Director | 17 Oct 2017 | 1 Jan 2020 | British | 47 years |
| Peter Thomas Telford | Director | 22 Mar 2002 | 1 Sept 2008 | British | 65 years |
| Rachel Helen Baldwin | Director | 25 Apr 2014 | 3 Feb 2015 | British | 50 years |
| Richard Charles Vyvyan Harrison | Director | 17 Apr 2008 | 27 Aug 2010 | British | 59 years |
| Robert William Holland | Director | 1 Oct 2007 | 1 Jan 2013 | British | 76 years |
| Roger Brian Cobbe | Director | 31 Dec 2003 | 1 Oct 2013 | British | 75 years |
| Sarah Louise Kendall | Director | 17 Apr 2008 | 1 Jul 2010 | British | 65 years |
| Stephen John Murphy | Director | 1 Jan 2013 | 24 Mar 2014 | British | 57 years |
| Stephen Lee Hopkinson | Director | 29 Aug 2024 | 23 May 2025 | British | 52 years |
| Thomas Guy Joyner | Director | 3 Jun 2019 | 15 Feb 2024 | British,south African | 52 years |
| William Rogers | Director | 1 Sept 2013 | 2 May 2016 | British | 51 years |
