| Adrian Nevil Hennah | Director | 4 Nov 2014 | 11 May 2016 | British | 68 years |
| Andrew Thomas Mclellan | Director | 4 Nov 2014 | 29 Feb 2024 | American | 77 years |
| Cary Claiborne | Director | 10 Nov 2014 | 7 Mar 2017 | American | 65 years |
| Christian Stanton Schade | Director | 4 Nov 2014 | 31 Jul 2019 | American | 64 years |
| Daniel Joseph Phelan | Director | 4 Nov 2014 | 30 Sept 2023 | American | 76 years |
| Daniel Tasse | Director | 4 Nov 2014 | 6 May 2021 | Canadian | 65 years |
| Graham Charles Hetherington | Director | 1 Nov 2019 | 31 Dec 2024 | British | 66 years |
| Howard Hao Pien | Director | 4 Nov 2014 | 4 Sept 2020 | American | 68 years |
| Jerome Lande | Director | 24 Mar 2021 | 31 Dec 2024 | American | 49 years |
| Joanna Susan Le Couilliard | Director | 24 Mar 2021 | 8 May 2025 | British | 62 years |
| Kathryn Barbara Hudson | Secretary | 15 Jun 2015 | 23 Apr 2025 | - | - |
| Lizabeth Herbst Zlatkus | Director | 1 Sept 2016 | 31 Aug 2019 | American | 67 years |
| Lola Oloyade Emetulu | Secretary | 26 Sept 2014 | 15 Jun 2015 | - | - |
| Lorna Mary Southcombe Parker | Director | 4 Nov 2014 | 30 Sept 2023 | British | 66 years |
| Mark Wesley Crossley | Director | 21 Feb 2017 | 8 May 2025 | American | 56 years |
| Patrick Norris Clements | Director | 26 Sept 2014 | 4 Nov 2014 | British | 61 years |
| Peter James Jonathan Bains | Director | 1 Aug 2019 | 8 May 2025 | British | 68 years |
| Robert Alan Schriesheim | Director | 17 Dec 2024 | 2 Mar 2025 | American | 65 years |
| Rupert Mark Boden Bondy | Director | 4 Nov 2014 | 30 Sept 2016 | British | 64 years |
| Ryan Preblick | Director | 19 Nov 2020 | 31 Dec 2024 | American | 50 years |
| Shaun Thaxter | Director | 4 Nov 2014 | 27 Jun 2020 | British,american | 58 years |
| Tatjana Anni Hilde May | Director | 1 Feb 2017 | 31 Jul 2020 | British | 60 years |
| William Richard Mordan | Director | 26 Sept 2014 | 4 Nov 2014 | American | 56 years |
| Yvonne Greenstreet | Director | 4 Nov 2014 | 31 Mar 2019 | British | 63 years |