| Andrew Taylor | Director | 31 May 2015 | 26 Oct 2015 | British | 53 years |
| Bruno Michel Dupety | Director | 1 Nov 2018 | 31 Mar 2020 | French | 70 years |
| David William Bowler | Director | 18 Jul 2006 | 31 Jul 2018 | British | 81 years |
| Graham Lambert | Director | 2 Apr 2020 | 8 Jul 2025 | British | 57 years |
| Guy Charles Gusterson | Director | 1 Dec 2016 | 31 Mar 2022 | British | 56 years |
| Jean-pierre Bonnet | Director | 1 Nov 2018 | 10 Jan 2019 | French | 70 years |
| John Christopher Humphreys | Secretary | 1 Nov 2006 | 2 Jul 2007 | British | - |
| Jon Messent | Secretary | 2 Jul 2007 | 28 Nov 2008 | British | - |
| Michael Edward Dunn | Director | 1 Dec 2010 | 31 May 2015 | British | 58 years |
| Modwen Corporate Services Limited | Corporate Secretary | 28 Nov 2008 | 5 Dec 2024 | United Kingdom | - |
| Neil Geoffrey Beaumont | Director | 5 Jul 2006 | 18 Jul 2006 | British | 67 years |
| Philip Alexander Robins | Director | 9 Apr 2020 | 31 Jan 2023 | British | 48 years |
| Robert David Howell Williams | Director | 31 Mar 2022 | 5 Dec 2024 | British | 56 years |
| Robert Jan Hudson | Director | 26 Oct 2015 | 9 Apr 2020 | British | 53 years |
| Susan Karen Johnson-brett | Secretary | 5 Jul 2006 | 15 Aug 2006 | British | - |
| Timothy Paul Haywood | Director | 18 Jul 2006 | 26 Nov 2010 | British | 63 years |
| Timothy Paul Haywood | Secretary | 15 Aug 2006 | 1 Nov 2006 | British | - |
| William Alder Oliver | Director | 18 Jul 2006 | 30 May 2012 | British | 70 years |
| William Alder Oliver | Director | 11 Jun 2012 | 30 Nov 2016 | British | 70 years |
