| MILTON, Jennifer Anne ACTIVE | Secretary | 17 Jul 2003 | | | | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| BLEACH, Jane Catherine ACTIVE | Director | 01 Dec 2021 | | United Kingdom | April 1962 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| BLYTH, Matilda Phoebe, Dr ACTIVE | Director | 01 Mar 2020 | | England | June 1971 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| CHAMINGS, Daniel Anthony ACTIVE | Director | 19 Feb 2024 | | England | June 1980 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| DE ROJAS, Jacqueline ACTIVE | Director | 01 Oct 2024 | | England | October 1962 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| FEEHILY, Claire Elizabeth, Dr ACTIVE | Director | 19 Feb 2024 | | England | June 1962 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| FLEMING, Jeremy, Sir ACTIVE | Director | 19 Feb 2024 | | United Kingdom | April 1967 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| HAINES, Avril Danica ACTIVE | Director | 09 Feb 2026 | | England | August 1969 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| MATHIAS, Hywel Richard Thomas ACTIVE | Director | 01 Dec 2021 | | England | April 1978 | Lady Members Entrance, Riverside Building, County Hall, Westminster Bridge Road, London, SE1 7PB, England |
| BILLINGHTON, Debra Charlotte RESIGNED | Secretary | 17 Feb 2003 | 07 Apr 2003 | | | 109 Linceslade Grove, Loughton, Milton Keynes, Buckinghamshire, MK5 8AD |
| SALE, Anthony Edgar RESIGNED | Secretary | 12 Nov 1992 | 24 Mar 1998 | | | 15 Northampton Road, Bromham, Bedfordshire, MK43 8QB |
| SMITH, Christopher Anthony Charles RESIGNED | Secretary | 24 Mar 1998 | 17 Feb 2003 | | | 1 Church Lane, Tingewick, Buckingham, MK18 4RA |
| BALFOUR, Robert RESIGNED | Director | 30 Nov 1999 | 20 Jan 2009 | | January 1927 | Brucefield, Alloa, Clackmannanshire, FK10 3QF |
| BARDAI, Zahra RESIGNED | Director | 01 Mar 2020 | 06 Nov 2025 | England | February 1978 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| BLACK, Natalie Ann RESIGNED | Director | 21 Nov 2017 | 21 Aug 2018 | United Kingdom | February 1983 | 153, Junction Road, London, N19 5PZ, United Kingdom |
| BLACK, Susan Elizabeth, Dr RESIGNED | Director | 27 Jun 2012 | 20 Dec 2013 | England | June 1962 | 10a, St Marks Hill, Surbiton, Surrey, KT6 4PW, Uk |
| BRISTOW, Ruth RESIGNED | Director | 06 Sep 1994 | 21 Dec 1998 | | July 1947 | 15 Calder Vale, Bletchley, Milton Keynes, Buckinghamshire, MK3 7PL |
| BROOKES, John Remfry RESIGNED | Director | 01 Jul 2008 | 04 Jul 2018 | England | June 1935 | The Glebe House, Lillingstone Lovell, Buckingham, Bucks, MK18 5BB |
| BROOKSHAW, Oliver Chitty RESIGNED | Director | 19 Jun 2007 | 11 Jun 2019 | England | March 1956 | Thorpe Underwood Farm, Thorpe Underwood, Northampton, Northamptonshire, NN6 9PA |
| BROWN, David Martin, Sir RESIGNED | Director | 12 Feb 2019 | 11 Oct 2024 | England | May 1950 | Bridleway Cottage, Stanmore, Newbury, Berkshire, RG20 8SR, England |
| BROWNE, John Philip Ravenscroft, Air Vice Marshall RESIGNED | Director | 30 Nov 1999 | 20 Jan 2009 | | April 1937 | 8 Hall Close, Little Paxton, St. Neots, Huntingdon, Cambridgeshire, PE19 4QS |
| BUSHELL, Elizabeth Anne RESIGNED | Director | 16 May 2017 | 30 Jun 2021 | England | November 1974 | 21, Bloomsbury Street, London, WC1B 3HF, England |
| CARD, Jonathan Martin RESIGNED | Director | 10 Mar 2015 | 09 Mar 2023 | England | August 1957 | 27, Edgeley Road, London, SW4 6EH |
| CARR, Roger Martyn, Sir RESIGNED | Director | 23 Jan 2018 | 14 May 2019 | England | December 1946 | Stirling Square, 6 Carlton Gardens, London, SW1Y 5AD, England |
| CHATAWAY, Christopher John, The Rt Hon Sir RESIGNED | Director | 19 Sep 2000 | 11 Jan 2007 | | February 1931 | 66 Maida Vale, London, W9 1PR |
| CROOKS, Samuel Bennett RESIGNED | Director | 10 Dec 2002 | 26 Nov 2014 | England | December 1946 | 13 Alverton, Great Linford, Milton Keynes, Buckinghamshire, MK14 5EF |
| DE ROTHSCHILD, Evelyn, Sir RESIGNED | Director | 30 Nov 1999 | 01 Jul 2009 | United Kingdom | August 1931 | 1 St Swithins Lane, London, EC4P 4DU |
| DISCOMBE, John RESIGNED | Director | 14 Jan 1993 | 12 Jan 2000 | | August 1946 | 2 Cline Court, Crownhill, Milton Keynes, Buckinghamshire, MK8 0DB |
| DUNCOMBE, Philip Digby Pauncefoot, Sir RESIGNED | Director | 14 Jan 1993 | 20 Jan 2009 | | May 1927 | Church Close, Church Lane, Great Brickhill, Milton Keynes, Bucks, MK17 9AE |
| ENEVER, Edward James RESIGNED | Director | 29 Apr 1993 | 27 Oct 1994 | | August 1934 | 10 Elmers Park, Bletchley, Milton Keynes, MK3 6DJ |
| FINDLAY, Martin Charles RESIGNED | Director | 22 Jul 1997 | 10 Mar 2015 | England | June 1935 | Ledburn Manor, Leighton Buzzard, Bedfordshire, LU7 0PX |
| FOX, Ian Jaspar RESIGNED | Director | 14 Jan 1993 | 01 Dec 1999 | | October 1944 | Leadale Whitworth Lane Loughton, Milton Keynes, Buckinghamshire, MK5 8EB |
| GRECH, Lionel David RESIGNED | Director | 14 Jan 1993 | 15 Apr 1993 | | May 1939 | 74 Stoke Road, Bletchley, Milton Keynes, Bucks, MK2 3AD |
| HALMOS, Ena Mary RESIGNED | Director | 14 Jan 1993 | 13 Jan 1998 | | April 1930 | 53 Lower Way Great, Brickhill, Milton Keynes, Bucks, MK17 9AG |
| HANNIGAN, Robert RESIGNED | Director | 21 Nov 2017 | 06 Jan 2025 | England | February 1965 | The Mansion, Bletchley Park, Sherwood Drive, Milton Keynes, Buckinghamshire, MK3 6EB |
| HODSDON, Judith Isabel RESIGNED | Director | 30 Mar 2010 | 20 Mar 2018 | England | March 1948 | 49, Pittville Crescent Lane, Cheltenham, Glos, GL52 2RA |
| JARVIS, Peter Neville, Dr RESIGNED | Director | 14 Jan 1993 | 25 Aug 2005 | | April 1932 | 42 Church Green Road, Bletchley, Milton Keynes, Bucks, MK3 6BL |
| JARVIS, Suzette Sonia RESIGNED | Director | 29 Apr 1993 | 24 May 1999 | | June 1937 | 42 Church Green Road, Bletchley, Milton Keynes, Buckinghamshire, MK3 6BL |
| JOINSON, Edwin Raymond RESIGNED | Director | 14 Jan 1992 | 22 Feb 1993 | | January 1939 | 11 Elmside, Winslow, Buckingham, Bucks, MK18 3HY |
| KABLER, Elisabeth Alison, Professor RESIGNED | Director | 16 May 2017 | 22 May 2025 | Scotland | September 1963 | Abertay University, Bell Street, Dundee, DD1 1HG, Scotland |
| KENNEDY, Christopher Guy William RESIGNED | Director | 24 Mar 2005 | 14 Mar 2017 | United Kingdom | March 1941 | Plough Cottage, 26 Horn Street, Winslow, Buckingham, MK18 3AL, England |
| KING, Kenneth Alexander RESIGNED | Director | 14 Jan 1993 | 12 May 2006 | | September 1929 | 104 Whalley Drive, Bletchley, Milton Keynes, Buckinghamshire, MK3 6HU |
| MACDONALD, Charles William RESIGNED | Director | 16 May 2017 | 18 Nov 2025 | England | January 1966 | 36, Lakes Lane, Newport Pagnell, Milton Keynes, MK16 8HR, England |
| MALLINSON, Adrian Howard RESIGNED | Director | 04 Mar 1997 | 13 Jan 1998 | United Kingdom | November 1942 | 22 Gordon Road, Claygate, Esher, Surrey, KT10 0PQ |
| MARTIN, Andrew Philip, Professor RESIGNED | Director | 24 Jan 2017 | 22 Jan 2025 | England | March 1968 | Dept Of Computer Science, Wolfson Building, Parks Road, Oxford, Oxfordshire, OX1 3QD, England |
| MATHER, John RESIGNED | Director | 14 Jan 1993 | 12 Jan 2000 | | May 1946 | 49 Wentworth Way, Bletchley, Milton Keynes, North Buckinghamshire, MK3 7RW |
| MCGOWAN, Hilary Anne RESIGNED | Director | 29 Sep 2009 | 15 Sep 2020 | United Kingdom | January 1955 | Oldmixon Manor, Oldmixon, Weston Super Mare, Somerset, BS24 9PB |
| MOORE, Christopher Mark RESIGNED | Director | 13 Jun 2000 | 21 Nov 2017 | United Kingdom | December 1944 | Thornborough Grounds, Bourton, Buckingham, Buckinghamshire, MK18 2AB |
| MORRIS, Graham John RESIGNED | Director | 20 Aug 1992 | 22 Jul 1997 | | June 1928 | 43 Pewley Hill, Guildford, Surrey, GU1 3SW |
| NAPLETON, John Winston RESIGNED | Director | 14 Jan 1993 | 14 Jun 1994 | England | January 1944 | The Old Bakehouse, 420 Simpson Village, Milton Keynes, MK6 3AL |
| OAKLEY, Brian Wynne, Dr RESIGNED | Director | 30 Jul 1996 | 12 Jan 2000 | | October 1927 | 120 Reigate Road, Ewell, Epsom, Surrey, KT17 3BX |
| PEROWNE, Brian Benjamin RESIGNED | Director | 19 Sep 2000 | 08 Jan 2008 | England | July 1947 | Sticklynch Manor, Sticklynch, West Pennard, Glastonbury, Somerset, BA6 8NA |
| PHILLIPS, Duncan Ramon John RESIGNED | Director | 29 Sep 2009 | 28 Sep 2021 | United Kingdom | July 1972 | 1, Worrelle Avenue, Middleton, Milton Keynes, Bucks, MK10 9AD |
| PIPER, Frederik Charles, Professor RESIGNED | Director | 12 Jan 2000 | 13 Dec 2012 | United Kingdom | June 1940 | 12, Duncan Road, Richmond, Surrey, TW9 2JD |
| POPPLEWELL, Oliver, Hon Sir RESIGNED | Director | 30 Nov 1999 | 16 Dec 2007 | | August 1927 | Tuesday Cottage, Quainton, Aylesbury, Buckinghamshire, HP22 4AS |
| RICHARDS, Francis Neville, Sir RESIGNED | Director | 11 Jan 2007 | 12 Jan 2012 | United Kingdom | November 1945 | Kings Mill House, Painswick, Glos, GL6 6RT |
| RITCHIE, Ian Cleland RESIGNED | Director | 30 Nov 1999 | 01 Jul 2009 | Scotland | June 1950 | Coppertop, Green Lane, Lasswade, Midlothian, EH18 1HE |
| SALE, Anthony Edgar RESIGNED | Director | 10 Dec 1992 | 15 Dec 1999 | United Kingdom | January 1931 | 15 Northampton Road, Bromham, Bedfordshire, MK43 8QB |
| SALE, Margaret Dorothy RESIGNED | Director | 06 Sep 1994 | 15 Dec 1999 | England | March 1932 | 15 Northampton Road, Bromham, Bedford, Bedfordshire, MK43 8QB |
| SANDS, Sarah Louise RESIGNED | Director | 19 Dec 2024 | 11 Feb 2026 | England | May 1961 | The Abbey House, The Street, Marham, King's Lynn, PE33 9HP, England |
| SARNA, Michael RESIGNED | Director | 10 Mar 2015 | 22 Mar 2019 | England | August 1965 | National Maritime Museum, Park Row, Greenwich, London, SE10 9NF, England |
| SCANLON, Eileen, Professor RESIGNED | Director | 07 Apr 2009 | 16 May 2017 | United Kingdom | April 1951 | 14, Heriot Row, Edinburgh, EH3 6HP |
| SCARLETT, John Mcleod, Sir RESIGNED | Director | 30 Mar 2010 | 20 Nov 2018 | United Kingdom | August 1948 | 12, Gray's Inn Square, London, WC1R 5JP, England |
| SINGER, Adam Nicholas RESIGNED | Director | 16 May 2017 | 31 Mar 2020 | England | January 1952 | Kingsbury Manor, 2 St. Michaels Street, St. Albans, Herts, AL3 4SE, England |
| SMITH, Anthony Richard RESIGNED | Director | | 24 Jan 1999 | | February 1955 | Regency Court 206-208, Upper Firth Street, Milton Keynes, Bucks, MK9 2HR |
| SMITH, Christopher Anthony Charles RESIGNED | Director | 14 Jun 1994 | 22 Jul 1997 | | June 1944 | 9 Lower Way, Great Brickhill, Milton Keynes, Buckinghamshire, MK17 9AG |
| SMITH, Michael William RESIGNED | Director | 21 Sep 2010 | 04 Jul 2018 | United Kingdom | May 1952 | 2 Sunnyside, School Lane, Stoke Row, Henley-On-Thames, Oxfordshire, RG9 5QU |
| THEWLISS, Peter, Professor RESIGNED | Director | | 25 Oct 1998 | | September 1944 | Milton Kenyes Polytecnic, Hammerwood Gate Kents Hill, Milton Keynes, Buckinghamshire, MK7 6HP |
| TOMKINS, Edward Emile RESIGNED | Director | 20 Aug 1992 | 18 Jan 2001 | | November 1915 | Winslow Hall, Winslow, Buckinghamshire, MK18 3HL |
| TURING, John Dermot, Sir RESIGNED | Director | 12 Jan 2012 | 12 Jan 2020 | United Kingdom | February 1961 | 10, Upper Bank Street, London, E14 5JJ |
| WALKER, Noel John RESIGNED | Director | 08 Mar 2000 | 13 Sep 2004 | United Kingdom | December 1948 | Fullers Barn The Green, Loughton, Milton Keynes, MK5 8AW |
| WESCOMBE, Peter John RESIGNED | Director | 13 Jun 2000 | 22 Jun 2003 | | January 1932 | 60 Rickley Lane, Bletchley, Milton Keynes, Buckinghamshire, MK3 6BT |
| WHELAN, Alan Francis RESIGNED | Director | 27 Sep 2012 | 27 Sep 2020 | United Kingdom | June 1961 | 34, Bovingdon Heights, Marlow, Buckinghamshire, SL7 2JS, United Kingdom |
| WILLIAMS, John Reginald RESIGNED | Director | | 09 Dec 1999 | | February 1935 | 25 Timber Lane, Woburn, Milton Keynes, MK17 9PL |