| BUGAJEVA, Julija ACTIVE | Secretary | 15 Dec 2016 | | | | 297, Euston Road, London, NW1 3AD, England |
| CHURCH, Colin Andrew, Dr ACTIVE | Director | 05 Feb 2019 | | England | October 1966 | 297, Euston Road, London, NW1 3AD, England |
| HILL, Thomas Rowland ACTIVE | Director | 28 Feb 2025 | | England | May 1976 | 297, Euston Road, London, NW1 3AD, England |
| MARCHANT, Ian Richard ACTIVE | Director | 23 Nov 2023 | | England | July 1965 | 297, Euston Road, London, NW1 3AD, England |
| GIBSON, Bryan Donald, Commander RESIGNED | Secretary | 10 Jan 1994 | 16 Sep 1996 | | | Kiln Bank, Bodel Street Green, Halisham, East Sussex, BN27 4UA |
| MILBANK, Raymond Charles RESIGNED | Secretary | 16 Sep 1996 | 11 Dec 2013 | | | 1 Carlton House Terrace, London, SW1Y 5DB |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 21 Dec 1993 | 10 Jan 1994 | | | 26, Church Street, London, NW8 8EP |
| CATTERALL, John Ashley, Dr RESIGNED | Director | 10 Jan 1994 | 29 Oct 1997 | | May 1928 | 65 Hamilton Avenue, Pyrford, Woking, Surrey, GU22 8RU |
| ELLIOTT, David, Dr RESIGNED | Director | 22 Nov 1994 | 22 Mar 2001 | England | December 1941 | The Rowans, Holmes Chapel Road, Somerford, Congleton, Cheshire, CW12 4SP |
| GIBSON, Bryan Donald, Commander RESIGNED | Director | 10 Jan 1994 | 29 Oct 1997 | | July 1937 | Kiln Bank, Bodel Street Green, Halisham, East Sussex, BN27 4UA |
| GLOVER, Neil Edward RESIGNED | Director | 22 Mar 2021 | 31 Dec 2024 | England | August 1970 | 297, Euston Road, London, NW1 3AD, England |
| HARRISON, Kathryn RESIGNED | Director | 22 Mar 2021 | 30 Jul 2026 | England | September 1966 | 297, Euston Road, London, NW1 3AD, England |
| LEWIS, Jan Charles Hugh RESIGNED | Director | 22 Mar 2021 | 14 Nov 2023 | England | March 1969 | 297, Euston Road, London, NW1 3AD, England |
| MASSEY, Charles Trevor RESIGNED | Director | 10 Mar 2004 | 21 Aug 2008 | United Kingdom | May 1934 | Vissitt Manor, Hemsworth, Pontefract, Yorkshire, WF9 4PN |
| MAY, Michael John, Dr RESIGNED | Director | 01 Oct 2008 | 31 Dec 2020 | England | November 1935 | 297, Euston Road, London, NW1 3AD, England |
| MILBANK, Raymond Charles RESIGNED | Director | 29 Oct 1997 | 11 Dec 2013 | United Kingdom | December 1948 | 1 Carlton House Terrace, London, SW1Y 5DB |
| RICKINSON, Bernard Alan, Dr RESIGNED | Director | 29 Oct 1997 | 31 Dec 2018 | England | January 1950 | 297, Euston Road, London, NW1 3AD, England |
| INSTANT COMPANIES LIMITED RESIGNED | Nominee Director | 21 Dec 1993 | 10 Jan 1994 | | | 1, Mitchell Lane, Bristol, Avon, BS1 6BU |