| Afshan Rathore | Secretary | 5 Jun 2017 | 12 Jul 2018 | - | - |
| Ana Louise Jordan | Secretary | 21 Jun 2022 | 12 Sept 2024 | - | - |
| Benjamin Burdett Money-coutts | Director | 29 Jan 2015 | 3 Sept 2015 | British | 64 years |
| Carole Marie-therese Laura Gilling-smith | Director | N/A | 18 Jul 2003 | British | 65 years |
| Christopher Spencer | Director | 28 Apr 2021 | 31 Oct 2022 | British | 56 years |
| David Andrew Lowe | Director | 31 Jan 2022 | 31 Aug 2022 | British | 59 years |
| David John Etherington | Director | 5 Jun 2017 | 4 Apr 2021 | British | 68 years |
| Deborah Lee Davis | Director | 1 Sept 2024 | 18 Mar 2025 | British | 62 years |
| Donald Mackechnie | Director | 2 Dec 2022 | 31 Aug 2024 | British | 52 years |
| Dudley Mark Hewitt Skinner | Director | 2 Dec 2022 | 31 Aug 2024 | British | 69 years |
| Gary Teper | Secretary | 18 Jul 2003 | 18 Sept 2012 | South African | - |
| Geoffrey Lawrence Gilling-smith | Director | 22 Aug 1991 | 18 Jul 2003 | British | 70 years |
| Gordon Dryden Gilling Smith | Director | 22 Aug 1991 | 26 Oct 2006 | British | 98 years |
| Gordon Dryden Gilling Smith | Secretary | 22 Aug 1991 | 18 Jul 2003 | British | - |
| Ian William Currie | Director | 12 Oct 2018 | 15 Mar 2019 | British | 64 years |
| Jacqueline Leiper | Director | 31 Oct 2022 | 31 Aug 2024 | British | 53 years |
| Jacqueline Lowe | Director | 1 Feb 2023 | 30 Sept 2023 | British | 59 years |
| James Hedley Rawlingson | Director | 1 Sept 2011 | 7 Jan 2015 | British | 58 years |
| James Tomlin | Director | 5 Jun 2017 | 31 Oct 2018 | British | 45 years |
| Joanna Kate Harris | Director | 1 Sept 2024 | 4 Jun 2025 | British | 52 years |
| John Damien Fox | Director | 12 Oct 2018 | 21 Mar 2019 | British | 56 years |
| Jonathan Anderson | Director | 26 May 2022 | 31 Aug 2024 | British | 70 years |
| Julie Ann Dean | Director | 12 Oct 2018 | 21 Mar 2019 | British | 50 years |
| Julie Ung | Secretary | 18 Sept 2012 | 31 May 2017 | - | - |
| Kate Ragnauth | Director | 18 Jul 2003 | 6 Apr 2018 | British | 61 years |
| Michael Raymond Ian Lilwall | Director | 18 Jul 2003 | 31 May 2017 | British | 67 years |
| Nicola Megaw | Secretary | 8 Dec 2020 | 21 Jun 2022 | - | - |
| Paul Andrew Abberley | Director | 9 Dec 2014 | 31 May 2017 | British | 66 years |
| Paul Downing | Director | 8 Jan 2018 | 31 Jan 2022 | British | 70 years |
| Paul Mcmahon | Director | 26 May 2022 | 31 Aug 2024 | British | 62 years |
| Peter Anthony Hurst | Director | 3 Aug 2004 | 31 Aug 2011 | British | 76 years |
| Phillip John Smith | Director | 5 Jun 2017 | 6 Dec 2019 | British | 57 years |
| Priscilla Ann Davies | Director | 2 Dec 2022 | 30 Jun 2023 | British | 54 years |
| Richard John Walker | Director | 22 Aug 1991 | 16 Jan 1992 | British | 76 years |
| Scott Cameron Guild | Director | 31 Jan 2022 | 31 Aug 2024 | British | 58 years |
| Sophie Jane O'connor | Director | 2 Dec 2022 | 30 Sept 2023 | British | 55 years |
| Vincent Philippe Francois Cambonie | Director | 5 Jun 2017 | 31 Jan 2022 | French | 60 years |
| Vincent Philippe Francois Cambonie | Secretary | 12 Jul 2018 | 24 Feb 2020 | - | - |
