| O'NEIL, Douglas Scott ACTIVE | Secretary | 24 Sep 2025 | | | | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| COLLIE, Christopher Alexander ACTIVE | Director | 30 Mar 2023 | | Luxembourg | October 1982 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| DRUMMOND SMITH, James Robert ACTIVE | Director | 24 Mar 2022 | | England | February 1960 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| MUNTON, John Robert ACTIVE | Director | 19 Sep 2025 | | England | October 1970 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| STOREY, David Scott ACTIVE | Director | 19 Sep 2024 | | England | September 1967 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| TUMPEL, Hannah Friederike Simone ACTIVE | Director | 24 Mar 2022 | | Germany | November 1978 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| WILLIAMS, Kyle Robert ACTIVE | Director | 30 Mar 2023 | | England | April 1973 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| ASHTON, David Julian RESIGNED | Secretary | | 13 Sep 1996 | | | Chestnut Cottage Tanglewood Close, Stanmore, Middlesex, HA7 3JA |
| MASSIE, Graham John RESIGNED | Secretary | 20 Nov 1997 | 19 Sep 2025 | | | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| SINCLAIR, Stuart George Hammond RESIGNED | Secretary | 13 Sep 1996 | 20 Nov 1997 | | | Kimble Lodge Holly Lane, Silchester, Reading, Berkshire, RG7 2NA |
| ADAMS, Laurence Philip RESIGNED | Director | 29 Jan 1998 | 16 Dec 1999 | England | October 1956 | Kingswood, Derby Road, London, SW14 7DU |
| ALLEN, David Christopher, Dr RESIGNED | Director | 13 Jul 2006 | 02 Nov 2010 | England | July 1954 | 1 St James's Square, London, SW1Y 4PD |
| ANDREWARTHA, Elizabeth Jane RESIGNED | Director | 16 Dec 1999 | 02 Nov 2010 | | December 1952 | Rockmount 128 Church Road, Upper Norwood, London, SE19 2NT |
| ARMITAGE, Roderick Donald RESIGNED | Director | 30 Nov 2000 | 02 Nov 2010 | England | September 1943 | 31 Parkgate, London, SE3 9XF |
| ASHTON, David Julian RESIGNED | Director | | 16 Dec 1999 | United Kingdom | October 1948 | Chestnut Cottage Tanglewood Close, Stanmore, Middlesex, HA7 3JA |
| BARLOW, Alan Thomas RESIGNED | Director | 19 Nov 2013 | 23 Mar 2017 | United Kingdom | December 1947 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| BATES, Sheila Margaret RESIGNED | Director | 25 May 2017 | 22 Sep 2022 | England | March 1962 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| BOYD, David John RESIGNED | Director | | 31 Dec 1994 | | February 1935 | 44 Riverine, Grosvenor Drive, Maidenhead, Berkshire, SL6 8PF |
| BROWNE, John Colin Clarke RESIGNED | Director | 22 Nov 2011 | 14 Mar 2017 | England | October 1945 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| BURNS, Susan Linda RESIGNED | Director | 26 Jun 1992 | 31 Dec 1994 | | June 1956 | 65 Holborn Viaduct, London, EC1A 2DY |
| CANNING, David John RESIGNED | Director | 15 Jul 1993 | 28 Nov 2002 | | March 1943 | 24 Aldbourne Avenue, Earley, Reading Berkshire, RG6 2DB |
| CARROLL, Eileen Philomena RESIGNED | Director | | 07 Feb 1997 | | December 1953 | 4 The Ridings, Kingswood, Surrey, KT20 6HJ |
| CHALFEN, Stuart Philip RESIGNED | Director | | 16 Dec 1999 | | July 1940 | 19 Kidderpore Gardens, Hampstead, London, NW3 7SS |
| COVENEY, Anthony Michael RESIGNED | Director | 19 Sep 2024 | 20 Aug 2025 | United Kingdom | August 1959 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| DAVIS, Michael Edward RESIGNED | Director | 30 Nov 2000 | 25 Sep 2009 | | August 1951 | Exchange House, Primrose Street, London, EC2A 2HS |
| DAY, Joanna Clare RESIGNED | Director | 25 May 2017 | 19 Sep 2024 | England | May 1957 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| DIXON, Catherine RESIGNED | Director | 25 May 2017 | 30 Mar 2020 | England | April 1966 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| DIXON, Giles Clifford RESIGNED | Director | 20 Nov 1997 | 30 Apr 2002 | United Kingdom | October 1942 | 65 Kew Green, Richmond Upon Thames, Surrey, TW9 3AH |
| DODSON, Charles Philip RESIGNED | Director | 25 Jul 1995 | 16 Dec 1999 | United Kingdom | April 1949 | Lone Barn House, Brown Candover, Alresford, Hampshire, SO24 9TW |
| DODSON, Charles Philip RESIGNED | Director | | 26 Jun 1992 | United Kingdom | April 1949 | Lone Barn House, Brown Candover, Alresford, Hampshire, SO24 9TW |
| DYKSTRA, Ronald Gerrit Malcolm RESIGNED | Director | 05 Sep 1991 | 14 Sep 1994 | | March 1934 | Stokesay 7 Racecourse Road, Wilmslow, Cheshire, SK9 5LF |
| FLAUX, Julian RESIGNED | Director | 16 Dec 1999 | 26 Sep 2003 | | May 1955 | 11 Rosslyn Hill, Hampstead, London, NW3 5UL |
| FOX, Tracey Elizabeth RESIGNED | Director | 25 May 2017 | 13 Sep 2021 | England | October 1974 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| GATENBY, John Keirl RESIGNED | Director | 23 Mar 1995 | 28 Nov 2002 | England | April 1950 | 18 Castleford Drive, Prestbury, Macclesfield, Cheshire, SK10 4BG |
| GIBBS, Jonathan Paul RESIGNED | Director | 16 Dec 1999 | 13 Jul 2006 | | September 1954 | 30 Morpeth Mansions, Morpeth Terrace, London, SW1P 1ET |
| GILVARRY, Evlynne RESIGNED | Director | 16 Dec 1999 | 22 Jan 2007 | | August 1959 | 5 Saint Anns Villas, London, W11 4RU |
| GOODRUM, Neil James RESIGNED | Director | 25 May 2017 | 12 Aug 2021 | England | April 1954 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| GRABINER, Michael RESIGNED | Director | 24 Jan 2012 | 14 Mar 2017 | United Kingdom | August 1950 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| GREEN, Colin Raymond RESIGNED | Director | 23 Mar 1995 | 16 Dec 1999 | | April 1949 | 81 Newgate Street, London, EC1A 7AJ |
| HARDY, Timothy Paul Frank RESIGNED | Director | 03 Dec 2001 | 02 Nov 2010 | | July 1952 | 19 Beech Avenue, Radlett, Hertfordshire, WD7 7DD |
| HAYMAN, Martin Heathcote RESIGNED | Director | 23 Mar 1995 | 20 Nov 1997 | England | December 1942 | 12 Brookfield Park, London, NW5 1ER |
| HEFFERNAN, Margaret Windham, Dr RESIGNED | Director | 17 Oct 2017 | 31 Dec 2020 | England | June 1955 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| HOLLOWAY, Julian Pendrill Warner RESIGNED | Director | | 30 Nov 2000 | England | May 1954 | 64 Alderbrook Road, London, SW12 8AB |
| HUGHES, Diane Frances RESIGNED | Director | | 24 Sep 1998 | | September 1963 | 12 Bishops Mansions, Bishops Park Road, London, SW6 6DZ |
| HURD, Douglas Richard, The Rt Hon Lord Hurd Of Westwell RESIGNED | Director | 30 Nov 2000 | 22 Jul 2004 | | March 1930 | Freelands, Westwell, Burford, Oxfordshire, OX18 4JT |
| IVENS, Robert John RESIGNED | Director | 13 Feb 2015 | 14 Mar 2017 | England | April 1958 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| JACOBS, Alan RESIGNED | Director | 25 May 2017 | 15 Aug 2021 | England | January 1957 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| JAMES, Desmond, Mr. RESIGNED | Director | | 23 Nov 1995 | United Kingdom | December 1929 | Harmers House Queensgate, Fairmile Lane, Cobham, Surrey, KT11 2TG |
| JARRATT, Alexander Anthony, Sir RESIGNED | Director | | 30 Nov 2000 | | January 1924 | Barn Mead, Fryerning, Ingatestone, Essex, CM4 0NP |
| JONES, Anne Elizabeth RESIGNED | Director | 26 Jun 1992 | 31 Jan 1994 | Great Britain | December 1947 | 9 The Terraces, Garner Street, London, E2 9AQ |
| LATHAM, Charles Stuart Hamilton, Mr. RESIGNED | Director | 07 Nov 1996 | 25 Nov 1997 | United Kingdom | April 1959 | 50 Kewferry Road, Northwood, Middlesex, HA6 2PG |
| LAWTON, Charles Henry Huntley RESIGNED | Director | 15 Jul 1993 | 23 Nov 1995 | | April 1946 | 26 Abingdon Villas, London, W8 6BX |
| LIGHTBURN, Edward Knowles RESIGNED | Director | | 28 Jan 1997 | | February 1936 | Gullege, East Grinstead, Sussex, RH19 1TX |
| LOING, Elodie RESIGNED | Director | 29 Jun 2023 | 19 Sep 2024 | France | November 1966 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| LONG, Peter James RESIGNED | Director | 15 Jul 1993 | 16 Dec 1999 | | October 1950 | 65 Park Road, Hampton Hill, Middlesex, TW12 1HX |
| MACKIE, Karl Joseph, Dr RESIGNED | Director | | 23 Sep 2021 | England | March 1947 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| MANNING-COX, Andrew Richard RESIGNED | Director | 03 Dec 2001 | 02 Nov 2010 | England | August 1954 | 55 Colmore Row, Birmingham, West Midlands, B3 2AS |
| MARKS, Alexandra Louise RESIGNED | Director | 27 Nov 2018 | 01 Nov 2019 | England | September 1959 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| MCGOVERN, Sean Gerard RESIGNED | Director | 02 Oct 2014 | 14 Mar 2017 | United Kingdom | May 1970 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| MECZ, Adrian RESIGNED | Director | 25 May 2017 | 30 Mar 2023 | England | April 1953 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| MIDDLETON, Peter Edward, Sir RESIGNED | Director | 22 Jul 2004 | 09 Feb 2011 | | April 1934 | 17 Launceston Place, London, W8 5RL |
| MILES, David Raymond RESIGNED | Director | 28 Mar 1991 | 31 May 2002 | | June 1946 | North Moreton House, North Moreton, Oxfordshire, OX11 9AT |
| MORGAN, David John RESIGNED | Director | 16 Dec 1999 | 31 Dec 2001 | England | July 1943 | Apsley House, Park Road, Banstead, Surrey, SM7 3DN |
| MYDDELTON, Roger Hugh RESIGNED | Director | | 31 May 2002 | | August 1942 | 21 Lawford Road, London, NW5 2LH |
| NAUGHTON, Philip Anthony RESIGNED | Director | | 16 Dec 1999 | | May 1943 | 3 Serjeants Inn, London, EC4Y 1BQ |
| PAGE, Joanna RESIGNED | Director | 25 May 2017 | 05 Nov 2025 | England | April 1962 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| PERREY, Derek Randall RESIGNED | Director | | 26 Jun 1992 | | June 1927 | Oaklands Rockbear Hill, Marsh Green, Exeter, EX5 2EZ |
| PRYOR, Nicholas David RESIGNED | Director | 23 Mar 1995 | 22 Aug 1997 | | October 1946 | 19 Wyatt Road, Highbury, London, N5 2JU |
| RENSHALL, James Michael RESIGNED | Director | | 30 Nov 2000 | United Kingdom | July 1930 | New House, Staunton On Wye, Hereford, Herefordshire, HR4 7LW |
| ROE, Mark Michael RESIGNED | Director | | 16 Dec 1999 | | May 1955 | 4 De Beauvoir Square, London, N1 4LG |
| SHERRINGTON, Patrick Philip RESIGNED | Director | 03 Dec 2001 | 14 Mar 2017 | England | November 1951 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| SIBLEY, Edward RESIGNED | Director | | 31 May 2002 | | July 1935 | The Outer Lodge, Beech Hill Park, Waltham Abbey, Essex, EN9 3QL |
| SINCLAIR, Stuart George Hammond RESIGNED | Director | | 27 Jan 1997 | | October 1938 | Kimble Lodge Holly Lane, Silchester, Reading, Berkshire, RG7 2NA |
| SMITH, Julian Richard RESIGNED | Director | 12 Dec 2024 | 19 Aug 2025 | England | August 1971 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| SODEN, John Francis RESIGNED | Director | 16 Dec 1999 | 09 Feb 2011 | England | December 1952 | 98 Alleyn Road, Dulwich, London, SE21 8AH |
| SOUTH, Craig James RESIGNED | Director | 23 Sep 2021 | 24 Sep 2025 | England | October 1970 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| STEADMAN, Felicity RESIGNED | Director | 25 May 2017 | 11 Nov 2018 | England | March 1959 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| TAZZINI, Riccardo Mark RESIGNED | Director | 16 Oct 2017 | 23 Mar 2023 | England | June 1967 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| VALLANCE, Elizabeth Mary, Lady RESIGNED | Director | 09 Feb 2011 | 14 Mar 2017 | England | April 1945 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| VINCENT, Judith Rosemary RESIGNED | Director | | 28 Jul 1995 | | September 1938 | 85c Philbeach Gardens, London, SW5 9EU |
| VON KUMBERG, Wolf Jurgen RESIGNED | Director | 12 Dec 2017 | 11 Apr 2022 | England | May 1956 | International Dispute Resolution, Centre, 70 Fleet Street, London, EC4Y 1EU |
| WATSON, Peter Maurice RESIGNED | Director | 30 Nov 2000 | 02 Nov 2010 | England | February 1956 | One New Change, London, EC4M 9QQ |
| WESTCOTT, Jonathan RESIGNED | Director | 16 Dec 1999 | 25 Sep 2008 | | February 1962 | 28 Winsham Grove, London, SW11 6NE |
| WHITE, Victor Oscar RESIGNED | Director | | 31 Dec 1995 | United Kingdom | August 1936 | 15 The Winery, Regents Bridge Gardens,Vauxhall, London, SW8 1JR |
| WHITFIELD, Alan RESIGNED | Director | 16 Dec 1999 | 14 May 2001 | | December 1954 | 24 Roundwood Park, Harpenden, Hertfordshire, AL5 3AF |
| WHITTLES, Jane Elspeth RESIGNED | Director | 03 Dec 2001 | 21 May 2015 | United Kingdom | May 1953 | Hytten, Wayside, Chipperfield, Kings Langley, Hertfordshire, WD4 9JJ |
| WILLIS, Anthony Martin Derek RESIGNED | Director | 23 Mar 1995 | 16 Dec 1999 | | November 1941 | 27 Caroline Place, London, W2 4AN |
| WILSON, David RESIGNED | Director | 20 Nov 2018 | 30 Mar 2023 | England | July 1963 | 100, St. Paul's Churchyard, London, EC4M 8BU, England |
| WINKWORTH-SMITH, Michael John RESIGNED | Director | | 16 Dec 1999 | United Kingdom | May 1944 | Churchdale Farm, Ashford In The Water, Bakewell, Derbyshire, DE45 1NX |
| YORK, Stephen Douglas RESIGNED | Director | 16 Dec 1999 | 02 Nov 2010 | England | March 1958 | 18 Madingley Road, Cambridge, Cambridgeshire, CB3 0EE |