| Alan Rupert Tyrrell | Director | 9 Jun 1992 | 13 May 1998 | British | 93 years |
| Alexander George Macpherson Campbell | Director | 9 Jun 1992 | 18 May 1994 | British | 95 years |
| Alexander William Scott | Director | 1 Aug 2016 | 31 May 2022 | British | 70 years |
| Anthony Denzil Mason | Director | 16 Oct 2007 | 31 Dec 2011 | British | 72 years |
| Callum Cormack Youngson | Director | 26 Apr 2017 | 25 Jun 2025 | British | 68 years |
| Christine Stewart Munro | Director | 9 Jun 1992 | 15 May 1996 | British | 84 years |
| Darryll St John Mcgee | Director | 9 Jun 1992 | 23 Mar 1994 | British | 87 years |
| David John Youngman | Director | 9 Jun 1992 | 3 Apr 2002 | British | 85 years |
| David Wheeler | Secretary | 31 Dec 2011 | 30 Sept 2024 | - | - |
| Douglas George Arnott Eadie | Director | 9 Jun 1992 | 15 May 1996 | British | 95 years |
| Elizabeth Mary Lady Vallance Of Tummel | Director | 9 Feb 2005 | 12 Jun 2013 | British | 81 years |
| Fiona Elizabeth Cornish | Director | 13 Sept 2017 | 25 Jun 2025 | British | 66 years |
| Frank Albert Attwood | Director | 9 Jun 2004 | 13 Jun 2012 | British | 83 years |
| Frank Attwood | Director | 11 Jul 2012 | 10 Apr 2013 | British | 83 years |
| Frederick David Richard Hobbs | Director | 15 May 1996 | 9 Jun 2004 | British | 73 years |
| Frederick James Trevor Burke | Director | 9 Jun 2010 | 8 Oct 2014 | British | 80 years |
| George Alan Crouch | Director | 21 May 1997 | 8 Jun 2005 | British | 82 years |
| Howard Baderman | Director | 9 Jun 1992 | 21 May 1997 | British | 92 years |
| Howard Roger Kew | Director | 13 Jun 2012 | 31 Mar 2021 | British | 66 years |
| Ian Anthony Colwyn | Director | 16 Nov 1994 | 7 May 2002 | British | 84 years |
| Ian Eardley | Director | 1 Nov 2015 | 12 Sept 2024 | British | 68 years |
| Ian Lionel Croxford | Director | 14 Nov 2007 | 8 Jun 2016 | British | 73 years |
| Jack Donald Hardcastle | Director | 15 May 1996 | 11 Jun 2003 | British | 93 years |
| James Mclenachan | Director | 1 Nov 2015 | 22 Jun 2022 | British | 69 years |
| John Bonnar | Director | 9 Jun 1992 | 13 May 1998 | British | 92 years |
| John Dermot Hickey | Director | 3 Apr 2002 | 30 Sept 2007 | British | 73 years |
| John Gibson | Director | 8 Oct 2014 | 15 Feb 2017 | British | 63 years |
| John Jennery Bradley | Director | 9 Jun 1992 | 21 May 1997 | British | 96 years |
| John Leighton Williams | Director | 8 Jul 1998 | 13 Jun 2007 | British | 85 years |
| John Paul Miller | Director | 19 Apr 1995 | 11 Jun 2003 | British | 86 years |
| John Richard Ludbrooke Youell | Director | 11 Jun 2003 | 8 Jun 2011 | British | 84 years |
| Kathryn Elizabeth Harley | Director | 14 Jun 2006 | 9 Jun 2010 | British | 68 years |
| Kay-tee Khaw-fawcett | Director | 8 Jun 2011 | 1 Sept 2019 | British | 76 years |
| Keith Francis Parsons | Director | 19 Apr 1995 | 11 Jun 2003 | United Kingdom | 79 years |
| Keith John Charles Bradley | Director | 11 Jul 2007 | 8 Jun 2016 | British | 76 years |
| Kevin James Lewis | Director | 11 Jun 2003 | 8 Jun 2016 | British | 77 years |
| Leela Kapila | Director | 11 Jun 2003 | 8 Jun 2011 | British | 89 years |
| Lorraine June Whittle | Secretary | 22 Jun 1998 | 1 Mar 2000 | British | - |
| Margaret Helen Elizabeth Seward | Director | 9 Jun 1992 | 30 Sept 1994 | British | 91 years |
| Mark Dinwoodie | Director | 8 Jun 2005 | 10 Jun 2009 | British | 63 years |
| Martin Hugh Temple Gairdner | Director | 15 May 1996 | 9 Jun 2004 | British | 88 years |
| Martin Nicholas Caleb Thomas | Director | 1 Sept 2016 | 16 Dec 2020 | British | 63 years |
| Mary Favier | Director | 8 Jun 2005 | 12 Jun 2013 | Irish | 64 years |
| Mary King | Director | 21 May 1997 | 8 Jun 2005 | Irish | 74 years |
| Maurice James Healy | Director | 9 Jun 1992 | 21 May 1997 | British | 95 years |
| Meghana Jaideep Pandit | Director | 1 Sept 2021 | 31 Dec 2024 | British | 59 years |
| Meredyth Cheryl Bell | Director | 17 May 1995 | 11 Jun 2003 | British | 81 years |
| Nicholas John Hawksley Davies | Director | 9 May 2001 | 13 Jun 2012 | British | 81 years |
| Patrick Bruce Forbes | Director | 8 Jun 2011 | 30 Sept 2019 | British | 75 years |
| Paul Bramley | Director | 9 Jun 1992 | 17 May 1995 | British | 103 years |
| Ravinder Nath Maini | Director | 9 May 2001 | 10 Jun 2009 | British | 89 years |
| Richard Brennan | Director | 1 Jul 2013 | 22 Jun 2022 | Irish | 72 years |
| Richard Brian Mouatt | Director | 13 May 1998 | 14 Jun 2006 | British | 90 years |
| Robert Canton Seward | Director | 15 May 1996 | 9 Jun 2004 | British | 80 years |
| Robert Myles Gibson | Director | 9 Jun 1992 | 15 May 1996 | British | 99 years |
| Robin Gray | Director | 9 Jun 1992 | 21 May 1997 | British | 94 years |
| Roy Newberry Palmer | Secretary | 9 Jun 1992 | 19 Jun 1998 | British | - |
| Sally Jane Scutt | Director | 1 Sept 2013 | 22 Jun 2022 | British | 70 years |
| Simon James Kayll | Director | 11 Jun 2003 | 31 Dec 2023 | British | 63 years |
| Simon James Kayll | Secretary | 1 Mar 2000 | 31 Dec 2011 | British | - |
| Simon Mark Pashby | Director | 1 Nov 2012 | 23 Jun 2021 | British | 68 years |
| Stuart Mark Davies | Director | 10 Jun 2009 | 26 Jul 2017 | British | 72 years |
| Susan Mary Sellers | Director | 21 May 1997 | 8 Jun 2005 | British | 77 years |
| Suzannah Claire Lishman | Director | 1 Sept 2019 | 23 Jun 2021 | British | 59 years |
| Tajek Basheer Hassan | Director | 14 Jun 2006 | 11 Jun 2014 | British | 63 years |
| Thomas Henry Taylor | Director | 9 Jun 1992 | 13 May 1998 | British | 95 years |
| Tom Weitzman | Director | 1 Aug 2016 | 25 Jun 2025 | British | 67 years |
| William Mcneil Styles | Director | 9 Jun 1992 | 8 Mar 1996 | British | 85 years |
| Yasmin Drabu | Director | 10 Jun 2009 | 26 Jul 2017 | British | 76 years |