| Andrew Marc Jones | Director | 17 Mar 2009 | 6 Nov 2009 | British | 58 years |
| Anthony Braine | Director | 17 Mar 2009 | 31 Jul 2014 | British | 69 years |
| Anthony Braine | Secretary | 17 Mar 2009 | 31 Jul 2014 | British | - |
| Benjamin Toby Grose | Director | 13 Jul 2012 | 2 Oct 2014 | British | 57 years |
| Charles John Middleton | Director | 22 Feb 2016 | 31 Mar 2022 | British | 60 years |
| Christopher Michael John Forshaw | Director | 17 Mar 2009 | 5 Apr 2017 | British | 77 years |
| Graham Charles Roberts | Director | 17 Mar 2009 | 30 Jul 2011 | British | 68 years |
| Jean-marc Vandevivere | Director | 13 Jul 2012 | 31 Jan 2016 | French | 49 years |
| Jonathan David Taylor | Director | 18 Mar 2022 | 11 Nov 2024 | British | 43 years |
| Lucinda Margaret Bell | Director | 17 Mar 2009 | 19 Jan 2018 | British | 62 years |
| Peter Courtenay Clarke | Director | 17 Mar 2009 | 16 Aug 2010 | British | 60 years |
| Sarah Morrell Barzycki | Director | 17 Mar 2009 | 18 Mar 2022 | British | 68 years |
| Simon Geoffrey Carter | Director | 13 Jul 2012 | 30 Jan 2015 | British | 51 years |
| Stephen Paul Smith | Director | 13 Jul 2012 | 31 Mar 2013 | British | 73 years |
| Timothy Andrew Roberts | Director | 17 Mar 2009 | 31 Mar 2019 | British | 62 years |
| Victoria Margaret Penrice | Director | 1 Aug 2014 | 29 Apr 2015 | British | 62 years |
| Victoria Margaret Penrice | Secretary | 1 Aug 2014 | 29 Apr 2015 | - | - |
| Victoria Margaret Penrice | Secretary | 1 Aug 2014 | 29 Apr 2015 | - | - |