| Adrian John Pike | Director | 17 Nov 2010 | 31 May 2016 | British | 59 years |
| Adrian Peter Keen | Director | 26 Nov 2014 | 7 Oct 2015 | British | 45 years |
| Alex Arthur Walker | Director | 27 Jan 2017 | 27 Jul 2020 | British | 45 years |
| Catherine Louise Emmett | Director | 8 Sept 2016 | 5 May 2017 | British | 42 years |
| Christopher George Mutter | Director | 17 Jan 2017 | 2 Mar 2020 | British | 66 years |
| David John Sneddon | Director | 29 Aug 2013 | 26 Nov 2014 | British | 64 years |
| Delvin Martin Lane | Director | 22 Apr 2015 | 30 Jun 2016 | British | 52 years |
| Edwin Stuart Hamilton | Director | 10 Nov 2015 | 27 Jul 2016 | British | 65 years |
| Gary De Vinchelez Le Sueur | Director | 29 Aug 2013 | 26 Nov 2014 | British | 56 years |
| Hedley John Mayor | Director | 1 Apr 2012 | 26 Nov 2014 | British | 62 years |
| Ian Robert Moore | Director | 26 Nov 2014 | 27 Jan 2017 | British | 55 years |
| Jeremy Cross | Secretary | 19 Oct 2012 | 3 Jan 2017 | - | - |
| Jeremy David Cross | Director | 31 May 2016 | 3 Jan 2017 | British | 43 years |
| Kevin Clifford Mouatt | Director | 31 May 2016 | 30 Jun 2016 | British | 65 years |
| Kevin Clifford Mouatt | Director | 30 Jun 2016 | 28 Apr 2020 | British | 65 years |
| Mark George Browning | Director | 10 Jul 2020 | 1 Feb 2024 | British | 44 years |
| Mark Ramsey Futyan | Director | 3 Mar 2020 | 15 Mar 2023 | British | 48 years |
| Maurice Robert Leo Hochschild | Director | 16 Feb 2015 | 15 Mar 2016 | British | 64 years |
| Natalia Tsitorua | Director | 27 Jan 2017 | 10 Dec 2019 | British | 43 years |
| Paul Cyril Dowling | Director | 26 Nov 2010 | 26 Nov 2014 | Irish | 61 years |
| Samer Souhail Salty | Director | 26 Nov 2010 | 29 Aug 2013 | British | 62 years |
| Stephen Frank Shine | Director | 1 Apr 2012 | 20 Feb 2020 | British | 69 years |
| Thomas Robert Biddle | Director | 26 Nov 2014 | 27 Jan 2017 | British | 46 years |
| Timothy Payne | Director | 17 Nov 2010 | 31 May 2016 | British | 63 years |