| WILLIS, Jacqui Laura ACTIVE | Secretary | 22 May 2026 | | | | 180, Great Portland Street, London, W1W 5QZ, United Kingdom |
| RIDDELL, James Hendry ACTIVE | Director | 19 Dec 2025 | | England | February 1979 | 180, Great Portland Street, London, W1W 5QZ, United Kingdom |
| SLAVIN, Philip Simon ACTIVE | Director | 13 Feb 2020 | | England | October 1974 | 180, Great Portland Street, London, W1W 5QZ, United Kingdom |
| BROMLEY, Diana Carol RESIGNED | Secretary | 10 Oct 1994 | 06 Aug 2002 | | | 130 Falloden Way, Hampstead Garden Suburb, London, NW11 6JD |
| DIXON, Susan Elizabeth RESIGNED | Secretary | 26 May 2005 | 01 Jan 2013 | | | Flat 1 29-31 Dingley Place, London, EC1 8BR |
| EASTWOOD, Charlotte Ind RESIGNED | Secretary | 06 Aug 2002 | 26 May 2005 | | | 16 Edna Street, London, SW11 3DP |
| HEAZELL, Frances Victoria RESIGNED | Secretary | 05 Oct 2016 | 22 May 2026 | | | 180, Great Portland Street, London, W1W 5QZ, United Kingdom |
| MCGRATH, Michael Joseph RESIGNED | Secretary | | 10 Oct 1994 | | | 20 Blakeden Drive, Claygate, Esher, Surrey, KT10 0JR |
| ODELL, Sandra Judith RESIGNED | Secretary | 01 Jan 2013 | 05 Oct 2016 | | | 43-45, Portman Square, London, W1H 6LY, United Kingdom |
| ASTAIRE, Jarvis Joseph RESIGNED | Director | | 07 May 1999 | England | October 1923 | 1 Great Cumberland Place, London, W1H 7AL |
| CARTER, Simon Geoffrey RESIGNED | Director | 26 May 2015 | 13 Jan 2017 | United Kingdom | September 1975 | 43-45, Portman Square, London, W1H 6LY, United Kingdom |
| COPPIN, Alan Charles RESIGNED | Director | | 30 Sep 1998 | England | June 1950 | Briar Hedge, The Drive, Bourne End, Buckinghamshire, SL8 5RE |
| DODD, Angus Alexander RESIGNED | Director | 27 Jun 2016 | 07 Nov 2019 | England | May 1967 | 180, Great Portland Street, London, W1W 5QZ, United Kingdom |
| DWYER, Tonianne RESIGNED | Director | 30 Nov 2006 | 16 Apr 2010 | United Kingdom | September 1962 | 170 Bishops Road, Fulham, London, SW6 7JG |
| ELLIOTT, Mark RESIGNED | Director | 13 Oct 1998 | 06 Aug 2002 | United Kingdom | March 1965 | Little Court, 19 Eaton Park, Cobham, Surrey, KT11 2JF |
| GAVAGHAN, David Nicholas RESIGNED | Director | 24 Mar 2011 | 16 Feb 2012 | United Kingdom | August 1959 | 16 Grosvenor Street, London, W1K 4QF |
| HOWELL, Denis Herbert, The Rt Hon Lord RESIGNED | Director | | 19 Apr 1998 | | September 1923 | 33 Moor Green Lane, Moseley, Birmingham, West Midlands, B13 8NE |
| JAMES, Maxwell David Shaw RESIGNED | Director | 05 Jul 2011 | 27 Jun 2016 | England | January 1967 | 43-45, Portman Square, London, W1H 6LY, United Kingdom |
| JENKINS, Michael Ben RESIGNED | Director | 13 Jan 2017 | 31 Dec 2020 | United Kingdom | September 1972 | 180, Great Portland Street, London, W1W 5QZ, United Kingdom |
| MARSHALL, Michael RESIGNED | Director | 18 Sep 2002 | 31 Mar 2012 | United Kingdom | December 1950 | 35 Jubilee Place, London, SW3 3TD |
| MCCRINDLE, Alexander Campbell RESIGNED | Director | | 30 Jun 1995 | Ireland | June 1946 | Hawthorne House, Pingewood Road North, Reading, Berkshire, RG30 3XL |
| MORRISON, Bruce Anthony RESIGNED | Director | | 01 May 1999 | United Kingdom | December 1961 | 3 Chapel Row, Maidstone Road Matfield, Tonbridge, Kent, TN12 7LD |
| MURRAY, Frederick Alan RESIGNED | Director | | 17 Nov 1993 | | October 1940 | 65 Salisbury Road, Carshalton, Surrey, SM5 2HA |
| POTTER, Brian Nigel RESIGNED | Director | 20 Apr 1993 | 06 Aug 2002 | | October 1946 | Montana House Broomfield Park, Sunningdale, Ascot, Berkshire, SL5 0JT |
| POTTER, Michael Skelton RESIGNED | Director | | 31 Mar 1999 | | December 1956 | 41 Bushey Hall Road, Bushey, Hertfordshire, WD23 2EE |
| POTTER, Nicholas Alan RESIGNED | Director | 01 Apr 1999 | 10 Jun 2005 | | June 1962 | 36 Cornwall Road, Harrow, Middlesex, HA1 4NE |
| SAUNDERS, James Michael Edward RESIGNED | Director | 12 Jun 2012 | 19 Dec 2025 | England | May 1966 | 180, Great Portland Street, London, W1W 5QZ, United Kingdom |
| SHATTOCK, Nicholas Simon Keith RESIGNED | Director | 06 Aug 2002 | 24 Mar 2011 | England | October 1959 | 1 Court Lane, Dulwich, London, SE21 7DH |
| SIMMONDS, Geoffrey Roy RESIGNED | Director | 18 Jan 1993 | 05 Feb 1993 | | January 1929 | Edgetide, Smith Road Greenwich Connecticut 06830, America |
| STEARN, Richard James RESIGNED | Director | 26 Jun 2012 | 31 Mar 2015 | United Kingdom | August 1968 | 43-45, Portman Square, London, W1H 6LY, United Kingdom |
| STRINGER, Charles William RESIGNED | Director | | 08 Apr 1993 | | May 1926 | 109 Ware Road, Hertford, Hertfordshire, SG13 7EE |
| STUBBER, James Robert Hamilton RESIGNED | Director | 06 May 2003 | 17 Feb 2006 | | August 1954 | 1 The Regency, Hide Place, London, SW1P 4HD |
| VIAZZANI, Janet Elizabeth RESIGNED | Director | 01 Apr 1999 | 01 Jun 2012 | England | December 1964 | Winton, West Hill, Harrow On The Hill, Middlesex, HA2 0JQ |
| WOLFSON, Brian Gordon, Sir RESIGNED | Director | | 27 Sep 1995 | | August 1935 | 44 Welbeck Street, London, NW1 5SN |
| WORTHINGTON, Rebecca Jane RESIGNED | Director | 25 May 2012 | 31 Oct 2012 | England | October 1971 | 16 Grosvenor Street, London, W1K 4QF |
| WORTHINGTON, Rebecca Jane RESIGNED | Director | 06 Aug 2002 | 25 May 2012 | England | October 1971 | The Old Cottage 97 The High Street, Wargrave, Berkshire, RG10 8DD |
| WYATT, Adrian Roger RESIGNED | Director | 18 Sep 2002 | 25 May 2012 | England | January 1948 | Broom Manor, Cottered, Buntingford, Hertfordshire, SG9 9QE |