| Adrian Timothy Rigby | Director | 9 Jun 2011 | 22 May 2012 | British | 60 years |
| Alexa Jane Coates | Director | 17 Feb 2015 | 3 Aug 2017 | British | 56 years |
| Barry John O'byrne | Director | 10 May 2018 | 27 Sept 2021 | Irish | 51 years |
| Dominic Henry Labram | Director | 23 Sept 2019 | 14 Jul 2023 | British | 44 years |
| Gavin Paul Hewitt | Director | 11 Aug 2011 | 23 Jan 2015 | British | 47 years |
| George William Bayer | Secretary | 30 May 2008 | 12 Sept 2008 | Other | - |
| Hollie Rheanna Wood | Secretary | 24 Sept 2010 | 24 Jul 2013 | - | - |
| Jane Fahey | Secretary | 3 Feb 2016 | 9 Nov 2017 | - | - |
| Katherine Dean | Secretary | 24 Jul 2013 | 3 Feb 2016 | - | - |
| Lori Lee Hall | Secretary | 26 Jan 2021 | 21 Feb 2022 | - | - |
| Malcolm James Brookes | Director | 23 Jun 2008 | 9 Jun 2011 | British | 71 years |
| Martin Peter Frederick Lord | Director | 13 Jan 2015 | 3 Feb 2016 | British | 71 years |
| Michael John Russell-brown | Director | 23 Jun 2008 | 2 Jun 2015 | British | 78 years |
| Nivedita Subramanian | Director | 3 Feb 2016 | 24 Nov 2017 | British | 46 years |
| Noel Paul Quinn | Director | 23 Sept 2010 | 31 Mar 2011 | British | 64 years |
| Richard Davies | Director | 24 Jun 2015 | 10 Jul 2017 | British | 47 years |
| Robert Francis Carver | Director | 22 May 2012 | 13 Nov 2017 | British | 67 years |
| Robert Hugh Musgrove | Director | 30 May 2008 | 19 Jan 2009 | Other | 59 years |
| Robert Hugh Musgrove | Secretary | 12 Sept 2008 | 28 Jan 2009 | Other | - |
| Sarah Caroline Gott | Secretary | 1 Oct 2008 | 24 Sept 2010 | British | - |
| Sophie Line | Secretary | 18 Jul 2018 | 26 Jan 2021 | - | - |
| Victoria Louise Phelps-gill | Director | 27 Oct 2017 | 4 Mar 2019 | British | 49 years |
