| Andrea Abt | Director | 10 May 2018 | 22 Sept 2021 | German | 65 years |
| Anne Katherine Wade | Director | 17 Feb 2015 | 31 Jan 2021 | American | 53 years |
| Antonie Paul Woodbury | Director | 23 Oct 2006 | 30 Sept 2010 | British | 65 years |
| Ben Robert Loomes | Director | 8 May 2020 | 28 Oct 2022 | British | 48 years |
| Carolyn Tracy Cattermole | Secretary | 16 Jan 2015 | 29 Mar 2018 | British | - |
| Clare Underwood | Secretary | 11 Sept 2018 | 14 Jan 2022 | - | - |
| David Joseph Gormley | Secretary | 29 Mar 2018 | 11 Sept 2018 | - | - |
| David Rough | Director | 17 Feb 2015 | 22 Sept 2021 | British | 74 years |
| Guy Roland Marc Pigache | Director | 23 Oct 2006 | 1 Oct 2015 | British | 65 years |
| Henderson Secretarial Services Limited | Corporate Secretary | 23 Oct 2006 | 16 Jan 2015 | - | - |
| Jamie Graham Christmas | Director | 4 May 2022 | 17 Jul 2023 | British | 44 years |
| Jeremy John Beeton | Director | 17 Feb 2015 | 22 Sept 2021 | British | 72 years |
| Leanne Bell | Director | 1 Dec 2020 | 22 Sept 2021 | American | 65 years |
| Lisa Jane Stone | Director | 1 Dec 2020 | 22 Sept 2021 | British | 63 years |
| Luciana Germinario | Director | 25 Apr 2019 | 31 Jul 2020 | English | 51 years |
| Michael Ian Jaffe | Director | 18 Apr 2012 | 16 Jan 2015 | British | 61 years |
| Nicholas Toby Hiscock | Director | 21 Dec 2006 | 1 Sept 2009 | British | 65 years |
| Nicholas Toby Hiscock | Director | 16 Jan 2015 | 7 May 2020 | British | 65 years |
| Oleg Shamovsky | Director | 22 Sept 2021 | 31 May 2022 | Canadian | 43 years |
| Olivier Brousse | Director | 16 Jan 2015 | 7 May 2020 | French | 60 years |
| Patrick Francis John O'donnell Bourke | Director | 16 Jan 2015 | 9 May 2019 | British | 68 years |
| Philip Henry Keller | Director | 1 Jan 2020 | 22 Sept 2021 | British | 60 years |
| Philip Michael Gerard Nolan | Director | 16 Jan 2015 | 10 May 2018 | British | 72 years |
| Priscilla Ann Davies | Director | 16 Mar 2010 | 1 Oct 2015 | British | 54 years |
| Robert Memmott | Director | 6 Jan 2021 | 31 Mar 2022 | British | 52 years |
| Roger Paul Greville | Director | 23 Oct 2006 | 27 Jun 2012 | New Zealander | 68 years |
| Victoria Burnett | Secretary | 26 Jan 2022 | 14 Dec 2022 | - | - |
| William Meredith Samuel | Director | 7 Dec 2017 | 22 Sept 2021 | British | 73 years |