| Andrew David Hart | Director | 1 Jan 2018 | 30 Nov 2021 | British | 57 years |
| Andrew Martin Pollins | Director | 1 Apr 2020 | 31 Jan 2023 | British | 59 years |
| Benjamin Watts | Director | 18 Jul 2013 | 9 Sept 2014 | British | 52 years |
| Branko Pokorny | Director | 19 Oct 2007 | 27 Jun 2008 | Dutch | 70 years |
| Brent Richard Hyde-smith | Director | 22 Sept 2011 | 18 Jul 2013 | British | 62 years |
| Colin Stephen Hale | Director | 13 Oct 2010 | 16 Dec 2014 | British | 70 years |
| David Anthony Sheridan | Director | 1 Jan 2018 | 30 Sept 2018 | British | 64 years |
| David William Kyriacos | Director | 31 Dec 2023 | 21 Nov 2024 | British | 50 years |
| James Peter Chiodini | Secretary | 31 Dec 2023 | 14 Feb 2025 | - | - |
| James Peter Hamilton Graham | Director | 1 Mar 2022 | 31 Dec 2023 | British | 40 years |
| Jean-philippe Marc Vincent Loiseau | Director | 27 Sept 2021 | 31 Dec 2023 | French | 58 years |
| Jerome Marie Georges Tolot | Director | 19 Oct 2007 | 23 Feb 2011 | French | 74 years |
| John Lawrence Whitty | Director | 19 Oct 2007 | 24 Jan 2011 | British | 83 years |
| John Michael Coleman | Director | 27 Jun 2008 | 24 Nov 2011 | British | 71 years |
| Luke Martyn Thomas | Director | 18 Jul 2013 | 16 Dec 2014 | British | 49 years |
| Mark Gallacher | Director | 1 Feb 2023 | 31 Dec 2023 | British | 47 years |
| Michael Andrew Booth | Director | 24 Nov 2010 | 31 Mar 2014 | British | 52 years |
| Michael Andrew Booth | Secretary | 15 Nov 2011 | 31 Mar 2014 | - | - |
| Nicola Elizabeth Anne Lovett | Director | 1 May 2019 | 30 Sept 2021 | British | 57 years |
| Paul Edwin Rawson | Director | 10 Jul 2007 | 18 Jul 2013 | British | 51 years |
| Paul Edwin Rawson | Director | 16 Dec 2014 | 9 Jan 2018 | British | 51 years |
| Paul Edwin Rawson | Secretary | 10 Jul 2007 | 15 Nov 2011 | British | - |
| Paul Laidlaw | Director | 18 Jul 2013 | 16 Dec 2014 | British | 60 years |
| Peter John Campbell Talbot | Director | 24 Sept 2009 | 12 Feb 2010 | British | 73 years |
| Pieter Marie Gustaaf Moens | Secretary | 16 Jul 2022 | 31 Dec 2023 | - | - |
| Richard Burrell | Director | 31 Dec 2023 | 2 May 2025 | British | 60 years |
| Richard Ironmonger Derry | Director | 13 Oct 2010 | 22 Sept 2011 | British | 79 years |
| Richard John Blumberger | Director | 16 Dec 2014 | 31 Jan 2016 | British | 51 years |
| Samuel Hockman | Director | 24 Jun 2019 | 28 Feb 2022 | British | 44 years |
| Sarah Gregory | Secretary | 1 May 2015 | 15 Jul 2022 | - | - |
| Sarah Jane Gregory | Director | 31 Jan 2022 | 4 Feb 2022 | British | 61 years |
| Simon David Pinnell | Director | 1 Jan 2016 | 31 Mar 2020 | British | 62 years |
| Simon Mark Woodward | Director | 24 Nov 2010 | 30 Jun 2014 | British | 60 years |
| Simone Tudor | Secretary | 31 Mar 2014 | 5 Jan 2015 | - | - |
| Stephen Wallace Grant | Director | 24 Sept 2009 | 13 Oct 2010 | British | 59 years |
| Steven Hardman | Director | 20 May 2025 | 20 Oct 2025 | British | 58 years |
| Wilfrid John Petrie | Director | 10 Jul 2007 | 1 May 2019 | French | 61 years |