| Christophe Andre Bernard Chapron | Director | 19 Feb 2007 | 29 Feb 2016 | French | 62 years |
| David Courtenay Palmer-jones | Director | 1 Oct 2008 | 1 Jan 2020 | British | 63 years |
| Florent Thierry Antoine Duval | Director | 1 Feb 2016 | 31 Oct 2021 | French | 50 years |
| Graham Arthur Mckenna-mayes | Secretary | 5 Jul 2006 | 5 Jan 2009 | British | - |
| Ian Anthony Sexton | Director | 5 Jul 2006 | 19 Feb 2007 | British | 70 years |
| Joan Knight | Secretary | 3 Jun 2015 | 6 May 2025 | - | - |
| Mark Hedley Thompson | Secretary | 5 Jan 2009 | 3 Jun 2015 | British | - |
| Nick Wilson | Director | 22 Feb 2006 | 5 Jul 2006 | British | 55 years |
| Nigel Desmond Alexander Sandy | Director | 22 Jul 2005 | 5 Jul 2006 | British | 82 years |
| Nigel James Coombs | Director | 1 Jan 1992 | 31 Oct 2000 | British | 82 years |
| Olive Mabel Hemmings | Director | 5 Sept 1991 | 1 Jan 1992 | British | 116 years |
| Olive Mary Nichols | Director | 5 Sept 1991 | 5 Jul 2006 | British | 79 years |
| Olive Mary Nichols | Secretary | 5 Sept 1991 | 5 Jul 2006 | British | - |
| Paul Taylor | Director | 16 Oct 2006 | 13 Nov 2009 | British | 67 years |
| Per-anders Hjort | Director | 5 Jul 2006 | 1 Oct 2008 | Swedish | 68 years |
| Peter Charles Thomas | Director | 1 Jul 1997 | 31 Aug 2006 | British | 63 years |
| Peter Joseph Haigh | Director | 1 Jan 1992 | 5 Jul 2006 | British | 73 years |
| Samuel Hemmings | Director | 5 Sept 1991 | 1 Jan 1992 | British | 116 years |
| Samuel Hemmings | Director | 5 Sept 1991 | 5 Jul 2006 | British | 83 years |