| CARNEGY, Christopher Roy ACTIVE | Secretary | 30 May 2018 | | | | 2a Tavistock Court, Tavistock Square, London, WC1H 9HE |
| GREGORY, Ruth Ann Watson, Professor ACTIVE | Director | 18 Oct 2022 | | England | September 1963 | 2a, Tavistock Court, Tavistock Square, London, WC1H 9HE, United Kingdom |
| LILLIE, Andrew Bryant ACTIVE | Director | 14 Jul 2023 | | England | June 1947 | 2a, Tavistock Court, Tavistock Square, London, WC1H 9HE, United Kingdom |
| PRICE, Roger John ACTIVE | Director | 12 May 2025 | | England | April 1967 | 2a, Tavistock Court, Tavistock Square, London, WC1H 9HE, United Kingdom |
| RAJAPPAN, Saffron Shirin ACTIVE | Director | 18 Oct 2022 | | England | July 2002 | 2a, Tavistock Court, Tavistock Square, London, WC1H 9HE, United Kingdom |
| BOYD, Anthony Ivor RESIGNED | Secretary | 16 Oct 1996 | 21 Dec 1999 | | | 26 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| BRETT, Donald Maurice RESIGNED | Secretary | | 16 Oct 1996 | | | 5 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| CLEGG, Christopher John Frederick RESIGNED | Secretary | 23 May 2001 | 07 Oct 2002 | | | 26 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| CRAIG, Michael Joseph RESIGNED | Secretary | 13 Feb 2018 | 30 May 2018 | | | 2a Tavistock Court, Tavistock Square, London, WC1H 9HE |
| DAVIES, Eric RESIGNED | Secretary | 12 Jan 2000 | 26 Apr 2001 | | | 62 Tavistock Court, Tavistock Square, London, WC1H 9HG |
| DVSC CONSULTING LIMITED RESIGNED | Secretary | 26 Jul 2017 | 27 Jul 2017 | | | 2a, Tavistock Court, Tavistock Square, London, WC1H 9HE, United Kingdom |
| EARTHSTREET LIMITED RESIGNED | Secretary | 07 Oct 2002 | 26 Jul 2017 | | | 15a, City Business Centre, Lower Road, London, SE16 2XB, United Kingdom |
| TIARE LIMITED RESIGNED | Secretary | 27 Jul 2017 | 14 Feb 2018 | | | 2a, Tavistock Court, Tavistock Square, London, WC1H 9HE, United Kingdom |
| ABBERTON, Evelyn Rosalind Marchant, Dr RESIGNED | Director | 31 Aug 1993 | 04 Jan 1999 | England | September 1939 | 68 Tavistock Court, Tavistock Square, London, WC1H 9HG |
| BOYD, Anthony Ivor RESIGNED | Director | 16 Oct 1996 | 21 Dec 1999 | | October 1948 | 26 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| BRETT, Donald Maurice RESIGNED | Director | | 16 Oct 1996 | | August 1927 | 5 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| CARNEGY, Christopher Roy RESIGNED | Director | 13 Feb 2018 | 24 Mar 2023 | England | December 1961 | 2a Tavistock Court, Tavistock Square, London, WC1H 9HE |
| CLEGG, Christopher John Frederick RESIGNED | Director | 21 Dec 1998 | 07 Oct 2002 | | April 1951 | 26 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| CRAIG, Michael Joseph RESIGNED | Director | 30 May 2018 | 18 Oct 2022 | England | September 1992 | 2a Tavistock Court, Tavistock Square, London, WC1H 9HE |
| CRAIG, Michael Joseph RESIGNED | Director | 13 Feb 2018 | 30 May 2018 | England | September 1992 | 2a Tavistock Court, Tavistock Square, London, WC1H 9HE |
| CROOK, Paul Bernard RESIGNED | Director | | 16 Oct 1996 | | April 1936 | 3 Birchwood Drive, Wilmington, Dartford, Kent, DA2 7NE |
| DAVIES, Eric RESIGNED | Director | 21 Dec 1998 | 26 Apr 2001 | | March 1938 | 62 Tavistock Court, Tavistock Square, London, WC1H 9HG |
| DAVISON, James Brian RESIGNED | Director | 01 Dec 2001 | 17 Mar 2007 | | March 1930 | 2 Brewer Street, Deal, Kent, CT14 6JH |
| DENNEHY, Denise Martina RESIGNED | Director | 16 Oct 1996 | 30 Apr 2015 | United Kingdom | January 1935 | 11 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| FOURCIN, Adrian John, Professor RESIGNED | Director | 13 Feb 2018 | 10 Apr 2026 | England | August 1927 | 2a Tavistock Court, Tavistock Square, London, WC1H 9HE |
| FOURCIN, Adrian John, Prof RESIGNED | Director | | 05 Nov 2000 | England | August 1927 | 68 Tavistock Court, London, WC1H 9HG |
| HARDING, Robert Carl RESIGNED | Director | 03 Sep 2002 | 01 Jun 2003 | | February 1965 | 40 Tavistock Court, Tavistock Square, London, WC1H 9HG |
| HIGGINS, Maria RESIGNED | Director | 18 Oct 2022 | 22 May 2023 | England | April 1979 | 2a, Tavistock Court, Tavistock Square, London, WC1H 9HE, United Kingdom |
| HURFORD, Robin John RESIGNED | Director | 14 Feb 2018 | 29 Nov 2019 | England | February 1942 | 2a Tavistock Court, Tavistock Square, London, Middlesex Greater London, WC1H 9HE, England |
| KINGSLEY, Michael John RESIGNED | Director | 01 Jul 2014 | 14 Feb 2018 | England | December 1957 | 26, Tavistock Court, Tavistock Square, London, WC1H 9HE, England |
| MANDER, Harold Richard RESIGNED | Director | 05 Aug 1996 | 04 Feb 1998 | | December 1927 | 61 Tavistock Court, Tavistock Square, London, WC1H 9HG |
| MILLS, Frances Mary RESIGNED | Director | 28 Feb 2001 | 14 Feb 2018 | United Kingdom | January 1942 | 57 Tavistock Court, Tavistock Square, London, WC1H 9HG |
| MINSHULL-FOGG, Margaret Winifred RESIGNED | Director | 23 Oct 2006 | 04 Nov 2014 | England | October 1923 | 19 Tavistock Court, Tavistock Square, London, WC1H 9HE |
| MOSS, Julia Phyllis RESIGNED | Director | 28 Feb 2001 | 14 Feb 2018 | United Kingdom | January 1950 | 180, Christchurch Road, Norwich, NR2 3PJ, England |
| PILGRIM, Anthony John RESIGNED | Director | | 16 Oct 1996 | | July 1923 | 8 Beechcroft St Georges Drive, Edgbaston, Birmingham, B15 3TP |
| THOMPSETT, Eileen, Dr RESIGNED | Director | 21 Dec 1998 | 01 Dec 2001 | | August 1931 | 49 Tavistock Court, Tavistock Square, London, WC1H 9HG |