| Alexander David William Price | Director | 1 Aug 2003 | 3 Aug 2022 | British | 55 years |
| Charles Alexander Allen | Director | 3 Sept 2018 | 3 Apr 2019 | British | 45 years |
| Christopher Harvey Digby-bell | Director | 1 Oct 2001 | 17 Aug 2017 | British | 78 years |
| Christopher Harvey Digby-bell | Secretary | 1 Apr 1999 | 17 Aug 2017 | British | - |
| Christopher James Button | Director | 30 Apr 2013 | 3 Apr 2019 | British | 52 years |
| Crispin Jeremy Auden | Director | 24 Jul 2001 | 12 Mar 2008 | British | 72 years |
| Emma Nicole Cullen | Director | 19 Apr 2017 | 3 Apr 2019 | British | 56 years |
| John Valentini | Director | 3 Apr 2019 | 12 Jun 2023 | Canadian | 64 years |
| Kanesh Vallabhdas Jeram Lakhani | Director | 3 Apr 2019 | 18 Sept 2019 | British | 65 years |
| Marc-andré Desjardins | Director | 15 Mar 2022 | 20 Jun 2024 | Canadian | 49 years |
| Marcus Sperber | Director | 28 May 2020 | 12 Jun 2023 | British | 60 years |
| Margaret Ann Palmer | Director | 2 Jul 1991 | 1 Apr 1999 | British | 79 years |
| Margaret Ann Palmer | Secretary | 2 Jul 1991 | 1 Apr 1999 | British | - |
| Nicholas Peter Cooper | Director | 16 Sept 2014 | 20 Dec 2016 | British | 69 years |
| Peter Cuthbert | Director | 3 Apr 2019 | 31 Mar 2021 | Canadian | 64 years |
| Richard Dansereau | Director | 31 Mar 2021 | 15 Mar 2022 | Canadian | 66 years |
| Rupert Charles Thomas Sheldon | Director | 12 Dec 2005 | 3 Apr 2019 | British | 57 years |
