| Alexander Hughes Honeyman | Director | 31 Dec 2020 | 31 Dec 2021 | British | 66 years |
| Alexandra Leta Malone | Director | 1 Apr 2022 | 7 Jul 2025 | British | 43 years |
| Alice Margaret Leggat | Secretary | 31 Oct 2019 | 21 Jan 2021 | - | - |
| Angus Alexander George Murray | Director | 20 Oct 2017 | 24 Sept 2018 | British | 56 years |
| Annant Shah | Director | 15 Sept 2021 | 24 Jul 2023 | British | 44 years |
| Barry O'regan | Director | 31 Dec 2020 | 2 Oct 2023 | Irish | 49 years |
| Brian Mcfarlane | Director | 1 May 2015 | 17 Jan 2018 | British | 55 years |
| Daniel Mark Pearson | Director | 21 Mar 2023 | 1 Feb 2024 | British | 50 years |
| David Gardner | Director | 1 Aug 2012 | 12 Oct 2012 | British | 63 years |
| Elaine Harley | Director | 31 Dec 2020 | 2 Oct 2023 | British | 57 years |
| Finlay Alexander Mccutcheon | Director | 25 Oct 2018 | 31 Dec 2020 | British | 49 years |
| Finlay Alexander Mccutcheon | Director | 1 Apr 2022 | 19 Feb 2024 | British | 49 years |
| Gareth David Lewis | Director | 11 Feb 2014 | 13 Feb 2015 | British | 59 years |
| Gemma Ronson | Secretary | 28 Jan 2014 | 22 Aug 2014 | - | - |
| Graham Melville Mason | Director | 27 Aug 2010 | 24 Sept 2018 | British | 54 years |
| James Isaac Smith | Director | 29 Jun 2010 | 1 Aug 2012 | British | 64 years |
| James Isaac Smith | Director | 27 Jan 2021 | 1 Feb 2022 | British | 64 years |
| Jeremy Williamson | Director | 31 Dec 2020 | 1 Apr 2022 | British | 60 years |
| Johannes Pieter Adrianus Dekker | Director | 29 Jun 2010 | 14 Jul 2016 | Dutch | 59 years |
| John Anthony Downes | Director | 31 Dec 2020 | 1 Apr 2022 | British | 56 years |
| Kate Emma Harvey | Director | 13 Feb 2015 | 15 Feb 2017 | British | 46 years |
| Kate Johanna Wallace Lockhart | Director | 3 Mar 2025 | 19 Sept 2025 | British | 35 years |
| Lawrence John Vincent Donnelly | Secretary | 24 Jun 2010 | 27 Jul 2010 | - | - |
| Michael Dedieu | Director | 24 Jun 2010 | 27 Aug 2010 | French | 57 years |
| Michael John William Seaton | Director | 15 Feb 2017 | 25 Oct 2018 | British | 60 years |
| Nicola Clair Davey | Secretary | 22 Aug 2014 | 26 Dec 2014 | - | - |
| Paul Gerald Cooley | Director | 25 Oct 2018 | 27 Aug 2025 | Irish | 55 years |
| Paul Joseph Murphy | Secretary | 27 Jul 2010 | 28 Jan 2014 | British | - |
| Penny Jay Langford | Director | 29 Jan 2013 | 11 Feb 2014 | British | 51 years |
| Penny Jay Langford | Director | 3 Dec 2014 | 1 May 2015 | British | 51 years |
| Penny Jay Langford | Director | 17 Jan 2018 | 25 Oct 2018 | British | 51 years |
| Peter George Raftery | Director | 29 Jun 2010 | 9 Nov 2011 | British | 58 years |
| Richard Peter Escott | Director | 30 Jul 2012 | 3 Dec 2014 | British | 61 years |
| Robert Bryce | Director | 1 Sept 2024 | 28 Jul 2025 | British | 48 years |
| Ronan Beale | Secretary | 19 Jan 2017 | 14 Jun 2018 | - | - |
| Suzanne Borrowman | Secretary | 26 Dec 2014 | 31 Dec 2016 | - | - |
| Suzanne Borrowman | Secretary | 14 Jun 2018 | 31 Oct 2019 | - | - |
| Wouter Koen Van Der Bijl | Director | 14 Jul 2016 | 20 Oct 2017 | Dutch | 50 years |