| FREEMAN, Stephen Martin Guy, Dr ACTIVE | Director | 07 Nov 2023 | | England | January 1958 | 21 Montagu Square, London, W1H 2LF |
| LARDONE, Carlotta ACTIVE | Director | 25 Mar 2026 | | United Kingdom | April 2002 | 21, Montagu Square, London, W1H 2LF, United Kingdom |
| TROUP, Alistair Charles Westray ACTIVE | Director | 15 Aug 2012 | | United Kingdom | January 1964 | 13, David Mews, London, W1U 6EQ, England |
| BROOME, Richard Neville Lancelot RESIGNED | Secretary | | 24 Jan 2002 | | | 21 Montagu Square, London, W1H 2LF |
| FREEMAN, Joan RESIGNED | Secretary | 05 Mar 2002 | 23 Aug 2010 | | | 21 Montagu Square, London, W1H 2LF |
| BROOME, Richard Neville Lancelot RESIGNED | Director | | 24 Jan 2002 | | August 1925 | 21 Montagu Square, London, W1H 2LF |
| DICKS, Anthony Richard RESIGNED | Director | | 24 Jan 2002 | | January 1936 | 21 Montagu Square, London, W1H 1RE |
| EWART, David Scott RESIGNED | Director | 30 Sep 2007 | 17 Jan 2013 | United Kingdom | April 1964 | 21, Montagu Square, London, W1H 2LF |
| FREEMAN, Hugh Lionel RESIGNED | Director | | 05 Mar 2002 | | August 1928 | 21 Montagu Square, London, W1H 1RE |
| FREEMAN, Joan RESIGNED | Director | 05 Mar 2002 | 02 Jul 2023 | United Kingdom | June 1935 | 21 Montagu Square, London, W1H 2LF |
| HARBOUR, Edmond RESIGNED | Director | 24 Jan 2002 | 25 Apr 2007 | | August 1972 | 21 Montagu Square, London, W1H 2LF |
| HARBOUR, Gideon Mark RESIGNED | Director | 25 Apr 2007 | 26 Nov 2008 | United Kingdom | May 1970 | Courtyard Building, 11 Curtain Road, London, EC2A 3LT |
| HUGHES, Norna Mair Briekley RESIGNED | Director | 24 Jan 2002 | 22 Jan 2007 | | December 1960 | 21 Montagu Square, London, W1H 2LF |
| ZAGANELLI, Roberta RESIGNED | Director | 21 Sep 2009 | 25 Mar 2026 | United Kingdom | March 1962 | Flat 2, 21 Montagu Square, London, W1H 2LF |