| Aisling Maria Burnand | Director | 20 Nov 2017 | 19 Sept 2022 | British | 62 years |
| Andrew Paul Mercieca | Director | 14 Nov 2019 | 31 Dec 2021 | British | 60 years |
| Annette Marian Doherty | Director | 28 Jun 2012 | 30 Nov 2018 | British,american | 65 years |
| Anthony Michael Nixon | Secretary | 12 Mar 1993 | 13 Jan 1994 | British | - |
| Christopher Clive Gabriel Hentschel | Director | 18 Mar 1992 | 18 Mar 1990 | British | 74 years |
| Christopher Clive Gabriel Hentschel | Director | 18 Mar 1993 | 10 Aug 1994 | British | 74 years |
| David Andrew Arlwydd Owen | Director | 5 Mar 1993 | 5 Feb 2001 | British | 82 years |
| David John Jeans | Director | 5 Jan 2009 | 13 Nov 2014 | British | 76 years |
| David Neil Copsey | Director | 18 Mar 1992 | 10 Aug 1994 | British | 82 years |
| David Neil Copsey | Secretary | 18 Mar 1992 | 12 Mar 1993 | British | - |
| David Neil Copsey | Secretary | 28 Feb 1995 | 26 Apr 1996 | British | - |
| David William Quysner | Director | 14 Sept 2004 | 14 Nov 2013 | British | 80 years |
| Declan Mulkeen | Director | 26 Aug 2008 | 17 Dec 2019 | Irish | 63 years |
| Derek Thomas Flint | Director | 22 Jun 2000 | 31 Jul 2006 | British | 91 years |
| Diana Rosemary Dunstan | Director | 5 Mar 1993 | 26 Apr 1996 | British | 84 years |
| Diane Jaqualine Mclaren | Director | 1 Nov 1999 | 15 Apr 2004 | British | 83 years |
| Diane Mellett | Director | 11 Jun 2007 | 19 Jun 2014 | British | 66 years |
| Edward Robert Clegg Bliss | Secretary | 15 Apr 2015 | 1 Sept 2023 | - | - |
| Erica Wilkinson | Secretary | 26 Apr 2013 | 30 Jan 2015 | - | - |
| Gurcharan Singh Sarna | Director | 14 Jul 2004 | 1 Aug 2008 | British | 75 years |
| Hugh Reginald Brentnall Pelham | Director | 11 Oct 2006 | 28 Jun 2012 | British | 72 years |
| Iain Cameron Baillie | Director | 7 Sept 1993 | 1 Nov 1999 | British | 95 years |
| Ian Frederick Skidmore | Director | 11 Jun 2007 | 12 Nov 2015 | British | 86 years |
| Ian Pollock Sword | Director | 5 Jun 1995 | 31 Jul 1998 | British | 84 years |
| Jane Susan Fisher | Secretary | 10 Apr 2012 | 26 Apr 2013 | - | - |
| Janusz Lasik | Secretary | 27 Jun 2025 | 12 Sept 2025 | - | - |
| Jessica Maria Mann | Director | 20 Nov 2017 | 2 Sept 2019 | German,swiss | 70 years |
| John Frederick Stageman | Director | 13 Nov 2014 | 4 Apr 2022 | British | 76 years |
| John James Skehel | Director | 5 Mar 1993 | 29 Sept 2006 | British | 85 years |
| Les Hughes | Director | 1 Mar 2016 | 11 Nov 2022 | British | 74 years |
| Mark Robert Edwards | Director | 6 Jul 2011 | 17 Nov 2016 | British | 64 years |
| Melanie Georgina Lee | Director | 14 Nov 2019 | 1 Oct 2023 | British | 68 years |
| Michael Alexander Dalrymple | Director | 7 Sept 1998 | 5 Feb 2001 | British | 66 years |
| Michael James Brooks | Director | 11 Oct 2006 | 17 Nov 2016 | British | 80 years |
| Mike Romanos | Director | 1 Mar 2016 | 22 Mar 2023 | British | 71 years |
| Nicholas Hugh Winterton | Director | 30 Jul 1996 | 5 Jan 2009 | British | 79 years |
| Paul Justin Mussenden | Director | 19 Jun 2014 | 14 Dec 2021 | British | 59 years |
| Peter Keen | Director | 5 Feb 2013 | 15 Jul 2021 | British | 69 years |
| Peter Ronald Eldridge | Secretary | 26 Apr 1996 | 11 Apr 2012 | British | - |
| Philip Cohen | Director | 28 Jun 2012 | 20 Apr 2016 | British | 81 years |
| Rachael Jennifer Davidson | Secretary | 20 Nov 2023 | 27 Jun 2025 | - | - |
| Richard Henderson | Director | 1 Nov 1999 | 29 Sept 2006 | British | 81 years |
| Rima Makarem | Director | 27 Jun 2023 | 8 Feb 2025 | British | 57 years |
| Robert Patten Bauman | Director | 5 Mar 1993 | 28 Jun 1995 | Usa | 95 years |
| Robert Peter Millar | Director | 22 Jun 2000 | 20 Jul 2011 | Irish | 82 years |
| Roger Hugh Gilmour | Director | 5 Mar 1993 | 1 Nov 1999 | British | 84 years |
| Sally Burtles | Director | 14 Nov 2013 | 15 Jul 2021 | British | 65 years |
| Stephen John Smerdon | Director | 11 Oct 2006 | 28 Jun 2012 | British | 64 years |
| Stephen Visscher | Director | 17 Nov 2016 | 24 Sept 2020 | British | 71 years |
| Susan Elizabeth Foden | Director | 1 Feb 2005 | 27 Nov 2006 | British | 73 years |
| Vrolyr Paul Gerskowitch | Director | 26 Apr 1996 | 23 Jul 1997 | British | 82 years |