| Adam Nathaniel Richford | Director | 25 Feb 2016 | 31 Mar 2019 | British | 50 years |
| Alexander Hughes Honeyman | Director | 30 Mar 2012 | 1 May 2018 | British | 66 years |
| Ann Miriam Georgina Gray | Director | 1 Oct 2019 | 12 Oct 2020 | British | 59 years |
| Ashley Comerford | Director | 1 Aug 2015 | 30 Sept 2019 | Irish | 48 years |
| Christopher David Milne | Director | 30 Mar 2012 | 19 Jun 2015 | British | 47 years |
| David Kevin Mulligan | Director | 10 Feb 2014 | 31 Mar 2015 | British | 57 years |
| Dominic Pieter James Murray | Secretary | 1 Jun 2023 | 10 Oct 2024 | - | - |
| Elizabeth Mary Bayley | Director | 1 Apr 2013 | 31 Dec 2013 | British | 54 years |
| Huw Rhys Lewis | Director | 24 Oct 2011 | 30 Nov 2011 | British | 66 years |
| Ian Frederick Goodfellow | Director | 30 Nov 2011 | 31 Mar 2013 | British | 72 years |
| Jeremy John Cobbett Simpson | Director | 30 Nov 2011 | 31 Mar 2014 | British | 55 years |
| Jonathan James Sime | Director | 1 May 2018 | 13 Aug 2020 | British | 47 years |
| Ketul Chandulal Shah | Director | 1 Apr 2019 | 30 Nov 2020 | British | 44 years |
| Martin Beattie | Director | 14 Aug 2020 | 12 Oct 2020 | British | 45 years |
| Matthew Paul Williams | Director | 1 Aug 2016 | 15 Dec 2016 | British | 68 years |
| Paul Frederek Holmes | Director | 24 Oct 2011 | 31 Mar 2013 | British | 55 years |
| Peter Damian Eglinton | Director | 15 Apr 2013 | 15 Jul 2016 | British | 57 years |
| Philip Bernard Griffin-smith | Secretary | 24 Oct 2011 | 31 May 2023 | - | - |
| Robert Ian Cartwright | Director | 1 Apr 2015 | 25 Feb 2016 | British | 71 years |
| Roy Kyle | Director | 1 Dec 2020 | 8 Dec 2022 | British | 65 years |
| William Spurr | Director | 1 Apr 2015 | 9 Sept 2016 | British | 62 years |