| Alain Simon | Director | 1 Oct 2010 | 1 Apr 2012 | British | 67 years |
| Alan Henry Newland | Director | 24 Dec 1991 | 30 Jun 1998 | British | 86 years |
| Barry Joseph Townsend | Director | 24 Dec 1991 | 30 Apr 1992 | British | 78 years |
| Christian Fortin | Director | 26 Oct 2018 | 15 Oct 2021 | Canadian | 61 years |
| Christophe Gaetan Louis Ferrer | Director | 1 Sept 2018 | 19 Apr 2021 | French | 43 years |
| Christopher John Connor | Director | 1 Oct 2010 | 31 Jul 2013 | British | 70 years |
| David Lee | Director | 1 Jan 2003 | 1 Oct 2007 | British | 77 years |
| David Norman Binding | Director | 3 Apr 2009 | 31 Dec 2017 | British | 76 years |
| Dixon John Atkinson | Director | 24 Dec 1991 | 31 Dec 1996 | British | 78 years |
| Eric Robert Ian Cross | Director | 24 Dec 1991 | 31 Dec 2002 | British | 78 years |
| Francois Jean Amosse | Director | 1 Oct 2007 | 31 Jul 2011 | French | 69 years |
| Gregoire Claude Albert Batut | Director | 23 Jun 2011 | 1 Sept 2018 | French | 61 years |
| Hector Garrido Escobar | Director | 29 Jun 2015 | 28 Sept 2018 | Spanish | 45 years |
| Ian David Slesser | Director | 12 Aug 2013 | 16 Dec 2014 | British | 53 years |
| John Martyn Rigby | Director | 1 Oct 2002 | 31 Dec 2006 | British | 69 years |
| John Michael Upcott | Director | 1 Jun 2001 | 31 Jan 2002 | British | 73 years |
| John Trow | Director | 1 Oct 1998 | 31 Dec 2006 | British | 78 years |
| Kristine Pollock | Director | 3 Apr 2009 | 31 Dec 2022 | British | 64 years |
| Michael Irving Notman | Director | 1 Apr 2017 | 31 Jul 2022 | British | 64 years |
| Michael Richard Betchley | Director | 1 Nov 2001 | 31 Dec 2006 | British | 74 years |
| Patrick Sulliot | Director | 3 Apr 2009 | 1 Jan 2011 | French | 67 years |
| Peter John Norton | Director | 24 Dec 1991 | 8 Jan 1996 | British | 94 years |
| Peter John Norton | Secretary | 24 Dec 1991 | 8 Jan 1996 | British | - |
| Raymond Victor Rawson | Director | 24 Dec 1991 | 31 Dec 2006 | British | 79 years |
| Robin William Withers | Director | 7 Apr 1997 | 31 Dec 2006 | British | 85 years |
| Robin William Withers | Secretary | 8 Jan 1996 | 1 Oct 2007 | British | - |
| Roger James Pennock | Director | 24 Dec 1991 | 31 Dec 2006 | British | 74 years |
| Sheila Kathleen Atkinson | Director | 24 Dec 1991 | 23 Aug 1996 | British | 81 years |
| Shelley Anne Benson | Director | 17 Sept 2019 | 30 Jun 2023 | British,australian | 56 years |
| Simon Lloyd Willis | Director | 13 Jun 2013 | 16 Aug 2018 | British | 61 years |
| Steven Christopher St John | Director | 3 Apr 2009 | 28 Feb 2010 | British | 78 years |
| Susan Mary Lysionek | Director | 3 Apr 2009 | 4 Oct 2022 | British | 64 years |
| Susan Mary Lysionek | Secretary | 1 Oct 2007 | 19 Oct 2022 | British | - |
| Trevor James Norman | Director | 9 Feb 2015 | 30 Jun 2020 | British | 66 years |
| William Taylor | Director | 1 Jan 2014 | 22 Oct 2016 | British | 65 years |
| Zdenek Langer | Director | 8 Nov 2021 | 23 Sept 2022 | Czech | 54 years |