| POVEY, Timothy Richard Michael ACTIVE | Secretary | 08 Jul 2024 | | | | 57, Canbury Park Road, Kingston Upon Thames, KT2 6LQ, England |
| BURCH, Joanna, Dr ACTIVE | Director | 08 Jul 2024 | | England | December 1964 | 86-90, Paul Street, London, EC2A 4NE, England |
| CASSIDY, Siobhan ACTIVE | Director | 15 May 2018 | | United Kingdom | April 1972 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| EDMONDSON, Ian David ACTIVE | Director | 10 Dec 2024 | | England | November 1969 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| GILBERT, George, Dr ACTIVE | Director | 01 Jun 2020 | | United Kingdom | October 1974 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| GILL, Kirsty Judith ACTIVE | Director | 27 Jan 2026 | | England | August 1972 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| HARRI, Guto ACTIVE | Director | 10 Dec 2024 | | England | July 1966 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| HILL, Phelan Peter ACTIVE | Director | 15 Jul 2022 | | England | July 1979 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| KUSHMA, Sara Elizabeth ACTIVE | Director | 15 Sep 2022 | | England | April 1991 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| NOWAK, Krystyna ACTIVE | Director | 08 Jul 2024 | | United Kingdom | March 1955 | 86-90, Paul Street, London, EC2A 4NE, England |
| PEARCE, David Sebastian ACTIVE | Director | 13 Nov 2018 | | England | May 1982 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| SANDFORD, Fay Gillian ACTIVE | Director | 20 Jan 2023 | | England | March 1991 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| SENDALL, Tracey ACTIVE | Director | 01 Oct 2025 | | England | July 1974 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| BLACKWELL, Mark Byron RESIGNED | Secretary | 25 Apr 2023 | 08 Jul 2024 | | | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| BOOMLA, Mark Adam RESIGNED | Secretary | 18 Oct 2007 | 15 Dec 2020 | | | The Beeches House, 25 South Park, Sevenoaks, Kent, TN13 1EN |
| BOOMLA, Mark Adam RESIGNED | Secretary | 26 Feb 2001 | 15 Sep 2004 | | | 25 South Park, Sevenoaks, Kent, TN13 1EN |
| CHISHOLM, Joelie RESIGNED | Secretary | 15 Dec 2020 | 30 Sep 2022 | | | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| LINDSEY, Julia RESIGNED | Secretary | 15 Sep 2004 | 18 Oct 2007 | | | 21 Commondale, London, SW15 1HS |
| SUPRAN, Jonathan Michael RESIGNED | Secretary | 15 Feb 1993 | 26 Feb 2001 | | | 2 Park Grove, Edgware, Middlesex, HA8 7SJ |
| TRUSEC LIMITED RESIGNED | Nominee Secretary | | 15 Feb 1993 | | | 35 Basinghall Street, London, EC2V 5DB |
| ALLEN, Robert Charles RESIGNED | Director | 20 Apr 2010 | 12 Jan 2015 | United Kingdom | October 1974 | Eighth Floor Imperial House, 15-19 Kingsway, London, WC2B 6UN |
| AUER, Katharina Elisabeth RESIGNED | Director | 01 Jun 2020 | 31 Jul 2021 | England | June 1960 | Minster House, 126a High Street, Whitton, Twickenham, TW2 7LL, England |
| BAIRD, Andrew Gerald Harvey RESIGNED | Director | 24 Apr 2012 | 06 Oct 2016 | United Kingdom | September 1954 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| BEHRENS, James Henry John RESIGNED | Director | 26 Jan 2022 | 27 Jan 2026 | England | September 1969 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| BEHRENS, James RESIGNED | Director | 20 Sep 2010 | 26 Sep 2011 | United Kingdom | September 1969 | 16, Palace Street, Cardinal Place, London, SW1E 5JQ, United Kingdom |
| BISHOP, Catherine Jane RESIGNED | Director | 21 Jan 2014 | 15 May 2018 | England | November 1971 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| BOGGIS, Emma Louise RESIGNED | Director | 30 Sep 2019 | 31 Aug 2022 | United Kingdom | April 1973 | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| BRIDGE, Peter Alan John RESIGNED | Director | 21 Apr 2009 | 13 Nov 2018 | United Kingdom | June 1972 | Wargrave Lodge, High Street, Wargrave, Berks, RG10 8DD |
| BRIDGE, Peter RESIGNED | Director | 27 Jun 2005 | 26 Jun 2008 | | June 1972 | 61 Beryl Road, London, W6 8JS |
| CHISHOLM, Joelie RESIGNED | Director | 01 Dec 2020 | 31 Oct 2022 | United Kingdom | December 1975 | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| CHUGANI, Neil RESIGNED | Director | 15 Sep 2004 | 20 Sep 2010 | United Kingdom | January 1969 | 60 The Vineyard, Richmond, Surrey, TW10 6AT |
| CLARKE, Richard James Scott RESIGNED | Director | 15 Sep 2004 | 22 Jan 2013 | England | October 1947 | 39 Larpent Avenue, Putney, London, SW15 6UU |
| CLARRY, Nicholas James, Mr. RESIGNED | Director | 26 Sep 2011 | 22 Jun 2016 | United Kingdom | March 1972 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| CLEGG, Robert Duncan RESIGNED | Director | 15 Feb 1993 | 26 May 2004 | United Kingdom | April 1942 | 154 Montagu Mansions, London, W1H 1LA |
| DALLEY, Christopher John RESIGNED | Director | 21 Apr 2009 | 05 Jul 2011 | United Kingdom | July 1949 | 14 Davenant Road, Oxford, Oxfordshire, OX2 8BX |
| DAWKINS, William Mark Ransford RESIGNED | Director | 26 Jun 2008 | 24 Apr 2012 | England | October 1956 | 9, Cavendish Avenue, Cambridge, Cambridgeshire, CB1 7UP, United Kingdom |
| DUNN, David Christy RESIGNED | Director | 28 Jul 1997 | 03 Oct 1998 | | February 1939 | 11 Trumpington Road, Cambridge, Cambridgeshire, CB2 2AJ |
| EVANS, William Mark RESIGNED | Director | | 15 Feb 1993 | | August 1957 | 60 Portland Road, London, W11 4LQ |
| FLYNN, Gavin John RESIGNED | Director | 22 Jan 2025 | 31 Jul 2025 | England | January 1972 | 3rd Floor, 86-90 Paul Street, London, EC2A 4NE, England |
| GILL, Alison Jane RESIGNED | Director | 09 Jul 2012 | 22 Jun 2016 | United Kingdom | August 1966 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| GILLESPIE, Robert Andrew Joseph RESIGNED | Director | 21 Apr 2009 | 21 Apr 2021 | United Kingdom | April 1955 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| HAYCOCK, Martin Neil RESIGNED | Director | 15 Sep 2004 | 20 Sep 2010 | England | September 1973 | Pembroke, Ledborough Gate, Beaconsfield, Bucks, HP9 2DQ |
| HUMPHREYS, Charles Paul Alastair RESIGNED | Director | 20 Sep 2010 | 06 Oct 2016 | United Kingdom | January 1977 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| JACOBS, Howard Robert RESIGNED | Director | 26 May 2004 | 02 Jun 2014 | England | October 1952 | 110 College Road, Dulwich, London, SE21 7HW |
| MACDONALD, Donald Hugh Munro RESIGNED | Director | 28 Jul 1997 | 26 May 2004 | | December 1955 | Orchard House, Sunningwell, Oxfordshire, OX13 6RB |
| MAILTLAND, Alison, Dr RESIGNED | Director | 01 Jul 2020 | 30 Nov 2022 | England | November 1962 | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| MARKS, John, Dr RESIGNED | Director | 08 Oct 1998 | 21 Apr 1999 | United Kingdom | March 1924 | Girton College, Huntingdon Road, Cambridge, CB3 0JG, United Kingdom |
| MATHESON, Hugh Patrick RESIGNED | Director | 03 Dec 2001 | 10 Jan 2006 | England | April 1949 | Thoresby Park, Newark, Nottinghamshire, NG22 9EP |
| MCEWAN, Charles Henry RESIGNED | Director | 01 Oct 2021 | 15 May 2022 | England | July 1975 | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| MORLAND, Miles Quintin RESIGNED | Director | 12 Jun 1996 | 08 Oct 1998 | | December 1943 | The Old Manor, Letcombe Regis, Wantage, OX12 9JP |
| MORRISON, Fiona Jane RESIGNED | Director | 06 Oct 2016 | 01 Oct 2021 | United Kingdom | May 1957 | Minster House, 126a High Street, Whitton, Twickenham, TW2 7LL, England |
| MURISON, Andrew Howard RESIGNED | Director | 21 Apr 1999 | 15 Sep 2004 | | May 1948 | Peterhouse, Cambridge, Cambridgeshire, CB2 1RD |
| MURISON, Fergus William RESIGNED | Director | 12 Jan 2016 | 15 Dec 2020 | England | August 1958 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| NICHOLLS, Clare Helen RESIGNED | Director | 01 Mar 2023 | 15 Jan 2024 | England | July 1970 | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| PHELPS, Annamarie RESIGNED | Director | 06 Feb 2012 | 21 Jan 2014 | England | May 1966 | Eighth Floor Imperial House, 15-19 Kingsway, London, WC2B 6UN |
| PLUNKETT, Stephen George Hedley RESIGNED | Director | 15 Feb 1993 | 28 Jul 1997 | | January 1954 | 19 Wilkes Street, Spitalfields, London, E1 6QF |
| RANKOV, Nikolas Boris, Dr RESIGNED | Director | 15 Feb 1993 | 12 Jun 1996 | | August 1954 | 14 Hill View Road, Oxford, OX2 0BZ |
| RICHARDSON, Hugh Francis RESIGNED | Director | 24 Apr 2012 | 21 Jan 2014 | United Kingdom | April 1949 | Eighth Floor Imperial House, 15-19 Kingsway, London, WC2B 6UN |
| RICHMOND, Charles Lynton RESIGNED | Director | 08 Oct 1998 | 06 Oct 2016 | United Kingdom | March 1963 | Kpmg Llp, 8 Salisbury Square, London, EC4Y 8BB |
| RODRIGUES, Christopher John RESIGNED | Director | | 27 Jun 2005 | United Kingdom | October 1949 | C900 Balmoral Apartments, West End Quay, 2 Praed Street, London, W2 1JN |
| SEARLE, David John RESIGNED | Director | 29 Sep 2009 | 21 Apr 2021 | United Kingdom | July 1955 | Maryland, Perry Hill, Worplesdon, Guildford, Surrey, GU3 3RB |
| SEARLE, Jonathan William Courtis RESIGNED | Director | 01 Oct 2021 | 08 Jul 2024 | England | May 1969 | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| SENIOR, Timothy James, Dr RESIGNED | Director | 22 Apr 2021 | 12 Feb 2023 | England | February 1971 | Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England |
| SNOW, Daniel Robert RESIGNED | Director | 20 Jun 2006 | 21 Jan 2014 | United Kingdom | December 1978 | 96 Philbeach Gardens, London, SW5 9ET |
| STEPHENS, Roger John RESIGNED | Director | 05 Jul 2011 | 02 Oct 2014 | England | December 1960 | Spectris Plc, Station Road, Egham, Surrey, TW20 9NP, United Kingdom |
| THANDI, Upneetpal RESIGNED | Director | 30 Sep 2021 | 09 Feb 2022 | Scotland | May 1985 | Minster House, 126a High Street, Whitton, Twickenham, TW2 7LL, England |
| TRAVIS, Quintus Richard Curtis Leigh RESIGNED | Director | 09 Nov 2004 | 15 Jan 2008 | | February 1964 | The Manor, 46 Chequer Street, Fenstanton, Cambridgeshire, PE28 9JQ |
| TROUP, Anna Evelyn RESIGNED | Director | 22 Jun 2016 | 17 Jul 2019 | England | March 1970 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| VARDEY, Giles Edwin RESIGNED | Director | 23 Jun 2004 | 21 Apr 2009 | England | May 1956 | Rose Cottage, Watery Lane Donhead St Mary, Shaftesbury, Dorset, SP7 9DF |
| WATERER, Robin Alistair RESIGNED | Director | 15 Jan 2008 | 06 Oct 2016 | United Kingdom | August 1956 | 1 Templar Street, London, SE5 9JB |
| WEST, Kieran Martin RESIGNED | Director | 28 Sep 2020 | 19 May 2021 | England | September 1977 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |
| WILLIAMS, Michael Duncan RESIGNED | Director | 12 Jun 1996 | 26 May 2004 | | March 1951 | Casamajor Pack & Prime Lane, Henley On Thames, Oxfordshire, RG9 1TT |
| WITHERS, Paul Nigel, Dr RESIGNED | Director | 02 Oct 2014 | 28 Sep 2020 | United Kingdom | June 1956 | 5a, Bear Lane, Southwark, London, SE1 0UH, England |