| DUBOURG HRACHOVEC, Lea ACTIVE | Director | 06 Jun 2025 | | England | August 1984 | Level 3, 6 St Andrew Square, Edinburgh, EH2 2BD, Scotland |
| DUESBERG, Gabriele Ruth ACTIVE | Director | 06 Jun 2025 | | England | February 1982 | Level 3, 6 St Andrew Square, Edinburgh, EH2 2BD, Scotland |
| LA MANNA, Federico ACTIVE | Director | 02 Feb 2026 | | Netherlands | October 1976 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| PETERS, Harld Johan ACTIVE | Director | 01 Jul 2025 | | Netherlands | August 1970 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| BALL, Ute RESIGNED | Secretary | 02 Dec 2024 | 27 Jun 2025 | | | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| GIBSON, Carolyn Ann RESIGNED | Secretary | 01 Feb 2007 | 30 Apr 2008 | | | Polo Barn, Nairdwood Lane, Great Missenden, Buckinghamshire, HP16 0QH |
| GRIFFIN-SMITH, Philip Bernard RESIGNED | Secretary | 01 May 2008 | 31 May 2023 | | | Enigma, Wavendon Business Park, Ortensia Drive, Wavendon, Milton Keynes, Buckinghamshire, MK17 8LX, England |
| HODGE, Stanley Bertrand John RESIGNED | Secretary | | 01 Dec 1996 | | | 140 Newton Street, Greenock, Renfrewshire, PA16 8SJ |
| KAYE, Paul RESIGNED | Secretary | 01 Dec 1996 | 31 Jan 2007 | | | Old Market Place, Market Lane Greet, Cheltenham, Gloucestershire, GL54 5BJ |
| MURRAY, Dominic Pieter James RESIGNED | Secretary | 01 Jun 2023 | 08 Nov 2024 | | | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| OVERSTEEGEN, Tobias RESIGNED | Secretary | 09 Nov 2024 | 02 Dec 2024 | | | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| ALEXANDER, Anthony George Laurence RESIGNED | Director | | 25 Feb 1999 | | April 1938 | Crafnant, Gregories Farm Lane, Beaconsfield, Buckinghamshire, HP9 1HJ |
| AUER, Adrian Richard RESIGNED | Director | 16 May 2005 | 31 Mar 2016 | United Kingdom | February 1949 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, Buckinghamshire, MK1 1BU, England |
| AVERILL, Michael Charles Edward RESIGNED | Director | 28 Apr 1994 | 30 Sep 2007 | United Kingdom | May 1951 | Little Meadow Upton Road, Dinton, Aylesbury, Buckinghamshire, HP17 8UQ |
| BIFFA, Richard Charles RESIGNED | Director | 20 Feb 1991 | 30 Jun 2005 | United Kingdom | December 1939 | Summerhill Park, Harpsden Wood Henley, Marlow, Buckinghamshire, RG9 2AE |
| BOYD, James Edward RESIGNED | Director | | 11 Aug 1994 | | September 1928 | Dunard, Station Road, Rhu, Dunbartonshire, G84 8LW |
| CASTELEIN, Allard, Dr RESIGNED | Director | 03 Jan 2017 | 06 Jun 2025 | Netherlands | July 1958 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| CLUBB, Ian Mcmaster RESIGNED | Director | 29 Sep 1994 | 27 Jul 2006 | | January 1941 | Pond House, Hadley Green, Hertfordshire, EN5 4PS |
| DE BONT, Otto Frank RESIGNED | Director | 01 Apr 2019 | 16 Jun 2025 | Netherlands | January 1967 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| DELANOIS, Philippe Maxime Rene' Gilbert RESIGNED | Director | 30 May 2001 | 26 Jul 2007 | | November 1941 | 3a Chemin De Couture, 1380 Lasme, Belgium |
| DILNOT, Peter George RESIGNED | Director | 01 Feb 2012 | 31 Mar 2019 | United Kingdom | August 1969 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, Buckinghamshire, MK1 1BU, United Kingdom |
| DOWNES, David John RESIGNED | Director | 14 Dec 1993 | 31 Dec 2005 | United Kingdom | December 1945 | Holden Brook, New Barn Lane, Ockley, Surrey, RH5 5PF |
| DRURY, Thomas Waterworth RESIGNED | Director | 01 Oct 2007 | 30 Sep 2011 | United Kingdom | September 1961 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, United Kingdom |
| FOWLER, Alastair John Neil RESIGNED | Director | | 30 Sep 1993 | | March 1939 | 45 Castleton Drive, Newton Mearns, Glasgow, Lanarkshire, G77 5LE |
| HARTLEY, Neil John RESIGNED | Director | 17 Jan 2019 | 06 Jun 2025 | Scotland | September 1965 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| HEWITT, Michael Roger RESIGNED | Director | | 12 Jan 1994 | England | February 1942 | Old Stocks Valley Road, Hughenden Valley, High Wycombe, Bucks, HP14 4PF |
| HOOD, Neil, Professor RESIGNED | Director | 25 Oct 1990 | 11 Aug 1994 | | August 1943 | Teviot 12 Carlisle Road, Hamilton, Lanarkshire, ML3 7DB |
| JOHNSON, Peter Thomas RESIGNED | Director | 16 May 2005 | 25 Jul 2013 | United Kingdom | May 1954 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU |
| LEE, Malcolm Charles RESIGNED | Director | 22 Mar 1991 | 31 Jan 1992 | United Kingdom | January 1946 | Penbury Woods, Witheridge Lane, Penn, Buckinghamshire, HP10 8PG |
| MATTHEWS, Colin Stephen RESIGNED | Director | 07 Mar 2016 | 31 Mar 2020 | United Kingdom | April 1956 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, Buckinghamshire, MK1 1BU, England |
| MEREDITH, James Robert RESIGNED | Director | 01 Nov 2000 | 01 Apr 2003 | | August 1960 | Ground Floor West 900, Pavilion Drive, Northampton Business Park, Northampton, Northamptonshire, NN4 7RG |
| MUNRO, David Michael RESIGNED | Director | | 03 Aug 1995 | | November 1944 | Cockairnie House, Aberdour, Burntisland, KY3 0RZ, Fife |
| NEWMAN, Geoffrey John RESIGNED | Director | 25 Oct 1990 | 25 Jul 1996 | | February 1939 | The Cottage, Little Piggotts, North Dean, Bucks, HP14 4NF |
| OTTER, Jacoba Wilhelmina Den RESIGNED | Director | 01 Jun 2022 | 31 Jan 2026 | Netherlands | May 1979 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| PETRY, Jacques Francis RESIGNED | Director | 30 Sep 2010 | 31 Dec 2019 | France | October 1954 | Dunedin House, Auckland Park, Mount Farm, Milton Keynes, MK1 1BU, United Kingdom |
| POINTON, Raymond Barry RESIGNED | Director | 01 Jan 1999 | 26 Jul 2007 | United Kingdom | February 1947 | 2 Threlfall Drive, Habberley Coppice, Bewdley, Worcestershire, DY12 1HU |
| RILEY, Stephen, Dr RESIGNED | Director | 29 Mar 2007 | 13 Jul 2017 | England | August 1961 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, United Kingdom |
| RUNCIMAN, Hugh Leishman Inglis RESIGNED | Director | | 31 Dec 1992 | | October 1928 | Shoreacres, Rhu, Dumbartonshire, G84 8LG |
| SAP, Johanna Catharina Maria RESIGNED | Director | 01 Apr 2018 | 06 Jun 2025 | Netherlands | May 1963 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| STERCKX, Luc Marie RESIGNED | Director | 01 Sep 2017 | 06 Jun 2025 | Belgium | March 1952 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| SURCH, Christopher RESIGNED | Director | 01 May 2009 | 26 Aug 2012 | United Kingdom | November 1961 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, Buckinghamshire, MK1 1BU, United Kingdom |
| VAN AMERONGEN, Eric Arthur RESIGNED | Director | 09 Feb 2007 | 13 Jul 2017 | Netherlands | December 1953 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, United Kingdom |
| VANDEWEYER, Katleen Maria RESIGNED | Director | 01 Dec 2022 | 06 Jun 2025 | Belgium | December 1969 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| VERWAAIJEN, Bernardus Johannes Maria RESIGNED | Director | 01 Apr 2020 | 06 Jun 2025 | England | February 1952 | The Stanley Building, 7 Pancras Square, London, N1C 4AG, England |
| WADDELL, Gordon Herbert RESIGNED | Director | 29 Oct 1992 | 25 Apr 2002 | | April 1931 | 43 Elm Park Gardens, London, SW10 9PA |
| WELHAM, Fraser Andrew Norton RESIGNED | Director | 16 May 2005 | 27 Apr 2009 | Uk | August 1964 | Pennard, Terry Road, High Wycombe, Buckinghamshire, HP13 6QJ |
| WOOLRYCH, Toby Richard RESIGNED | Director | 27 Aug 2012 | 31 Mar 2022 | United Kingdom | September 1966 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, Buckinghamshire, MK1 1BU, United Kingdom |
| WYATT, Marina May RESIGNED | Director | 02 Apr 2013 | 14 Jul 2022 | England | January 1964 | Dunedin House, Auckland Park, Bletchley, Milton Keynes, MK1 1BU, England |