| Alexander John Hynes | Director | 3 Feb 2012 | 19 Jul 2013 | British | 49 years |
| Bernard Denis Maurice Tabary | Director | 1 Feb 2011 | 19 Mar 2023 | French | 66 years |
| Carolyn Ferguson | Secretary | 1 Jul 2006 | 22 May 2023 | British | - |
| Charles Anthony Hodgson | Director | 20 Jul 2013 | 20 Nov 2020 | British | 47 years |
| Christian Schreyer | Director | 5 Nov 2021 | 31 Oct 2023 | German | 58 years |
| Christopher Moyes | Director | 9 Jan 1997 | 8 Jul 2006 | British | 77 years |
| David Allen Brown | Director | 1 Apr 2011 | 5 Nov 2021 | British | 66 years |
| Dickinson Dees | Corporate Nominee Secretary | 14 Nov 1996 | 9 Jan 1997 | - | - |
| Elodie Marie Francoise Brian | Director | 5 Jun 2019 | 27 Sept 2021 | French | 47 years |
| Gordon Alexander Boyd | Director | 28 Sept 2021 | 28 Mar 2022 | British | 66 years |
| Ian Philip Butcher | Director | 9 Jan 1997 | 1 Jul 2007 | British | 75 years |
| Ian Philip Butcher | Secretary | 9 Jan 1997 | 30 Jun 2006 | British | - |
| Ian Russell Grose | Director | 1 Nov 2023 | 6 Sept 2024 | British | 49 years |
| Jean-pierre Deghaye | Director | 13 Nov 2000 | 5 Oct 2007 | French | 78 years |
| Jonathan Kevin Willcock | Director | 3 Feb 2012 | 26 Jul 2013 | British | 50 years |
| Keith Anthony Moffatt | Director | 9 Jan 1997 | 30 Apr 2000 | British | 72 years |
| Keith Down | Director | 7 Mar 2011 | 6 Dec 2015 | British | 61 years |
| Keith Lawrence Ludeman | Director | 1 Dec 2000 | 2 Jul 2011 | British | 76 years |
| Louis Frederic Marie Joseph Rambaud | Director | 7 Jun 2022 | 1 Mar 2024 | French | 38 years |
| Malcolm Robert Rimmer | Director | 20 Jul 2010 | 11 Jun 2015 | British | 67 years |
| Martin Richard Dean | Director | 20 Nov 2020 | 7 Jun 2022 | British | 63 years |
| Martin Stanley Andrew Ballinger | Director | 9 Jan 1997 | 31 Dec 2004 | British | 83 years |
| Michel Cornil | Director | 24 Feb 1997 | 23 Oct 2000 | French | 82 years |
| Michel Laurent Masson | Director | 6 Oct 2006 | 11 Sept 2009 | French | 58 years |
| Miguel Angel Parras | Director | 1 Mar 2024 | 16 Jul 2025 | Spanish | 47 years |
| Nicholas Swift | Director | 17 Jul 2007 | 7 Mar 2011 | British | 62 years |
| Nicolas Luc Daniel Vandevyver | Director | 4 Dec 2009 | 11 Jun 2015 | French | 62 years |
| Olivier Michel Georges Barbaroux | Director | 24 Feb 1997 | 11 Jan 1999 | French | 71 years |
| Patrick Raymond Jeantet | Director | 26 Oct 2005 | 1 Feb 2011 | French | 66 years |
| Sarah Elizabeth Mussenden | Director | 9 May 2022 | 31 Dec 2022 | British | 61 years |
| Simon Patrick Butcher | Director | 14 Mar 2016 | 30 Nov 2018 | British | 59 years |
| Stephane Andre Richon | Director | 5 Oct 2007 | 6 May 2010 | French | 74 years |
| Thomas William Mclardy Smith | Director | 25 Feb 2005 | 31 Dec 2010 | British | 69 years |
| Timothy James Care | Nominee Director | 14 Nov 1996 | 9 Jan 1997 | British | 65 years |
| Varagne Franjois | Director | 11 Jan 1999 | 23 Oct 2000 | French | 71 years |
| Yves Magnan | Director | 13 Nov 2000 | 26 Oct 2005 | French | 78 years |
