| Adam Charles Winslow | Director | 17 Jun 2021 | 30 Aug 2023 | British | 47 years |
| Alison Elizabeth Hutchinson | Director | 1 Jul 2017 | 31 Oct 2017 | British | 59 years |
| Andrew David Briggs | Director | 20 Jun 2017 | 24 Apr 2019 | British | 60 years |
| Andrew John Moss | Director | 29 Jul 2004 | 30 May 2012 | British | 68 years |
| Anthony Blake Wyand | Director | 18 Sept 1998 | 31 Jul 2003 | British | 83 years |
| Anthony Brian Cleaver | Director | 16 May 1990 | 1 Jun 1992 | British | 88 years |
| Anupam Sahay | Director | 29 Jun 2007 | 31 Dec 2009 | Indian | 57 years |
| Barrie Holder | Director | 1 Apr 1990 | 30 Nov 1995 | British | 81 years |
| Cheryl Toner | Director | 15 Jul 2022 | 31 Mar 2024 | British | 56 years |
| Claire Margaret Valentine | Secretary | 27 Nov 2013 | 12 Dec 2016 | - | - |
| Clifford James Abrahams | Director | 21 Dec 2011 | 7 May 2013 | British | 59 years |
| Colm Joseph Holmes | Director | 21 Nov 2014 | 28 Feb 2018 | Irish | 60 years |
| Colm Joseph Holmes | Director | 8 Aug 2019 | 25 May 2021 | Irish | 60 years |
| David George Patrick Coke Airlie | Director | 16 May 1990 | 12 May 1997 | British | 100 years |
| David Wigley Nickson | Director | 16 May 1990 | 12 May 1997 | British | 97 years |
| David Wigley Nickson | Director | 9 Aug 1993 | 29 Jun 1994 | British | 97 years |
| Diane Cote | Director | 10 Dec 2010 | 5 Dec 2011 | Canadian | 63 years |
| Duncan Mcdonald | Director | 16 May 1990 | 29 Apr 1992 | British | 105 years |
| Frederick Ranald Noel-paton | Director | 16 May 1990 | 1 Jun 1992 | British | 88 years |
| George Norton Morris | Director | 8 Aug 1990 | 1 Jun 1992 | American | 96 years |
| Guy Russell Cameron Munnoch | Director | 1 May 2013 | 30 Jun 2017 | British | 74 years |
| Harry James Kember | Director | 16 May 1990 | 31 Dec 1991 | British | 97 years |
| Hiteshkumar Rameshchandra Patel | Director | 30 Oct 2017 | 30 Sept 2019 | British | 65 years |
| Ian Caithness Menzies | Director | 16 May 1990 | 31 Dec 1990 | British | 86 years |
| Igal Mordeciah Mayer | Director | 29 Jun 2007 | 31 Dec 2009 | Israeli | 65 years |
| Igal Mordeciah Mayer | Director | 25 Feb 2011 | 27 Apr 2012 | Israeli | 65 years |
| James Christopher Corcoran | Director | 16 May 1990 | 31 Aug 1991 | British | 100 years |
| Jane Carmel Poole | Director | 23 Aug 2021 | 9 Apr 2024 | British | 46 years |
| Jason Constantine Frangoulis | Director | 16 May 1990 | 30 Apr 1991 | British | 104 years |
| Jason Michael Windsor | Director | 28 Sept 2017 | 17 Jul 2019 | British | 54 years |
| Jennifer Jane Wilman | Secretary | 7 May 2013 | 27 Nov 2013 | - | - |
| John Brendan O'roarke | Director | 8 Mar 2018 | 31 Mar 2020 | British | 68 years |
| John Robert Lister | Director | 29 May 2012 | 7 May 2013 | British | 68 years |
| John Russell Fotheringham Walls | Director | 1 May 2013 | 13 Apr 2015 | British | 82 years |
| John Russell Fotheringham Walls | Director | 31 Oct 2017 | 28 Feb 2018 | British | 82 years |
| Jonathan Scott Wheway | Director | 13 Apr 2015 | 30 Sept 2017 | British | 60 years |
| Kirstine Ann Cooper | Director | 15 Jul 2013 | 15 Jul 2022 | British | 62 years |
| Kirstine Ann Cooper | Secretary | 8 Aug 2007 | 7 May 2013 | British | - |
| Kory Beth Sorenson | Director | 5 Nov 2015 | 31 Mar 2018 | British | 58 years |
| Lord Macfarlane Of Bearsden | Director | 16 May 1990 | 1 Jun 1992 | British | 100 years |
| Lyndon Bolton | Director | 16 May 1990 | 1 Jun 1992 | British | 89 years |
| Mark Andrew Pain | Director | 15 Jul 2013 | 30 Sept 2017 | British | 65 years |
| Mark Steven Hodges | Director | 29 Jun 2007 | 2 Jun 2011 | British | 61 years |
| Martin Strobel | Director | 5 May 2022 | 11 Mar 2024 | Swiss | 60 years |
| Maurice Ewen Tulloch | Director | 11 Oct 2013 | 20 Jun 2017 | British,canadian | 57 years |
| Michael Nicholas Biggs | Director | 31 Mar 2001 | 31 Dec 2003 | British | 74 years |
| Nicholas Dutfield Rochez | Director | 15 Jul 2013 | 30 Apr 2023 | British | 72 years |
| Nicholas Proctor Goodison | Director | 16 May 1990 | 1 Jun 1992 | British | 92 years |
| Patrick Charles Regan | Director | 22 Mar 2010 | 7 May 2013 | British | 60 years |
| Patrick Joseph Robert Snowball | Director | 24 Apr 2001 | 3 May 2007 | British | 76 years |
| Peter Geoffrey Ward | Director | 18 Sept 1998 | 15 Jun 2000 | English | 84 years |
| Peter Grattan Clayton | Director | 1 Apr 1998 | 18 Sept 1998 | British | 86 years |
| Peter James Foster | Director | 18 Sept 1998 | 31 Mar 2001 | British | 80 years |
| Philip Gordon Scott | Director | 24 Apr 2001 | 26 Jan 2010 | British | 72 years |
| Philip Johnson Twyman | Director | 1 Sept 1996 | 31 Mar 2004 | Australian | 82 years |
| Richard Andrew Whitaker | Secretary | 1 Jun 1990 | 8 Aug 2007 | British | - |
| Richard John Harvey | Director | 24 Apr 2001 | 29 Jun 2007 | British | 76 years |
| Robert Avisson Scott | Director | 1 Jun 1992 | 24 Apr 2001 | Australian | 84 years |
| Robert Ian Leyman Townend | Director | 28 Feb 2018 | 30 Sept 2019 | British | 59 years |
| Robert Wilson Adam | Director | 16 May 1990 | 27 May 1993 | British | 103 years |
| Robin Lloyd Spencer | Director | 25 Nov 2010 | 11 Oct 2013 | British | 56 years |
| Rt.hon.lord Moore / Wolvercote | Corporate Director | 16 May 1990 | 1 May 1991 | - | - |
| Russell Evans | Director | 26 Jun 1996 | 31 Mar 1998 | New Zealand | 87 years |
| Sarah Maillet | Director | 5 Nov 2019 | 18 Dec 2020 | British | 60 years |
| Steven Paul Burns | Director | 1 Jan 2018 | 30 Jun 2022 | British | 68 years |
| Thomas Roberts | Director | 16 May 1990 | 30 Nov 1992 | British | 96 years |
| Tidjane Cheick Thiam | Director | 29 Jun 2007 | 28 Sept 2007 | French | 64 years |
| Timothy Walter Harris | Director | 21 Sept 2010 | 30 Mar 2012 | British | 57 years |
| Trevor John Matthews | Director | 2 Dec 2011 | 7 May 2013 | Australian | 74 years |
| Valerie Frances Gooding | Director | 28 Feb 2018 | 14 Jul 2020 | British | 76 years |
| Walter Edward Farnam | Director | 12 Aug 1991 | 1 Jun 1992 | Usa | 85 years |
| William David Mungo James Earl Of Mansfield | Director | 16 May 1990 | 1 Jun 1992 | British | 96 years |
| William Nelson Robertson | Director | 16 May 1990 | 31 Dec 1995 | British | 93 years |