| BIERRY, Eric ACTIVE | Director | 20 Jul 2021 | | France | January 1974 | 350, Euston Road, London, NW1 3AX, England |
| BUISSON, Philippe ACTIVE | Director | 09 Jan 2025 | | France | November 1961 | 350, Euston Road, London, NW1 3AX, England |
| DONOVAN, Patrick ACTIVE | Director | 09 Jan 2025 | | United States | February 1970 | 350, Euston Road, London, NW1 3AX, England |
| SOPRA GMT ACTIVE | Director | 09 Jan 2025 | | | | Pae Les Glaisins, Annecy-Le-Vieux, Annecy, 74940, France |
| FAIRCLOUGH, Ian Peter RESIGNED | Secretary | 01 Oct 1999 | 25 Feb 2000 | | | 17 Claremont Road, Leamington Spa, Warwickshire, CV31 3EH |
| JAMESON, Paul RESIGNED | Secretary | 31 Oct 2005 | 14 Mar 2012 | | | Ground Floor, The Arenson Centre, Arenson Way, Houghton Regis, Dunstable, Bedfordshire, LU5 5UL, United Kingdom |
| SINNETT, Paul Martin RESIGNED | Secretary | 25 Feb 2000 | 25 Mar 2004 | | | Mill Croft Barn, Water Stratford Road, Tingewick, MK18 4PD |
| SINNETT, Paul Martin RESIGNED | Secretary | 15 Dec 1993 | 01 Oct 1999 | | | 11 The Woodlands, Chesterton, Bicester, Oxfordshire, OX6 8TN |
| VINEY, Stephen Richard John RESIGNED | Secretary | | 15 Dec 1993 | | | 3 Horseshoe Close, Cheddington, Leighton Buzzard, Bedfordshire, LU7 0SB |
| WOOD, Philip Basil RESIGNED | Secretary | 25 Mar 2004 | 31 Oct 2005 | | | Portelet, High Street Croydon, Royston, Hertfordshire, SG8 0DR |
| BOURBON, Jean-Paul RESIGNED | Director | 31 Jul 2014 | 20 Jul 2021 | France | October 1947 | 350, Euston Road, London, NW1 3AX, England |
| BUCKLEY, Philippa Mary RESIGNED | Director | | 30 Nov 1992 | | November 1957 | 44 London Road, Loughton, Milton Keynes, Buckinghamshire, MK5 8AQ |
| COMMANAY, Pierre-Yves RESIGNED | Director | 14 Mar 2012 | 09 Jan 2025 | England | August 1965 | 9 Bis, Rue De Presbourg, Paris, 75116, France |
| ELLINGTON, Peter RESIGNED | Director | 15 May 1996 | 20 Jun 2002 | | November 1944 | 7 Tudor Gardens, Stony Stratford, Milton Keynes, MK11 1HY |
| FISHER, Linda Jean RESIGNED | Director | 30 Sep 1999 | 31 Dec 2006 | | September 1949 | 5 Priory Orchard, Flamstead, St Albans, Hertfordshire, AL3 8BU |
| HEISKANEN, Henri Mikael RESIGNED | Director | 14 Apr 2009 | 31 Jul 2011 | Finland | June 1975 | Ground Floor, The Arenson Centre, Arenson Way, Houghton Regis, Dunstable, Bedfordshire, LU5 5UL, United Kingdom |
| HOLMEN, Knut RESIGNED | Director | 22 Feb 2008 | 16 Feb 2009 | | August 1959 | Dagalivn. 25b, No-0776 Oslo, Norway |
| HOWARD, Elliot Spencer Blades RESIGNED | Director | 14 Mar 2012 | 24 Apr 2015 | United Kingdom | December 1969 | Arenson Centre, Arenson Way, Dunstable, HU5 5UL, United Kingdom |
| JAMESON, Paul Richard RESIGNED | Director | 16 Feb 2009 | 14 Mar 2012 | England | April 1972 | Ground Floor, The Arenson Centre, Arenson Way, Houghton Regis, Dunstable, Bedfordshire, LU5 5UL, United Kingdom |
| JOHANSSON, Per Erik Mikael RESIGNED | Director | 10 Oct 2011 | 14 Mar 2012 | Sweden | December 1962 | Ground Floor, The Arenson Centre, Arenson Way, Houghton Regis, Dunstable, Bedfordshire, LU5 5UL, United Kingdom |
| KERNAHAN, Adrian Clive RESIGNED | Director | 30 Sep 1999 | 21 Jun 2002 | | July 1953 | 19 Kings Road, Pownall Park, Wilmslow, Cheshire, SK9 5PZ |
| LAST, Richard RESIGNED | Director | 15 Dec 1993 | 25 Mar 2004 | United Kingdom | July 1957 | The Leys Farm, Banbury Road Great Tew, Chipping Norton, Oxfordshire, OX7 4DL |
| LEROY, Pascal RESIGNED | Director | 14 Mar 2012 | 30 Apr 2014 | France | January 1957 | 14, Avenue De Bois Preau, Rueil-Malmaison, Hauts-De-Seine, 92500, France |
| LISCOMBE, David Kenneth RESIGNED | Director | 16 Jan 1997 | 14 Dec 2000 | | January 1948 | Pear Tree Farm Ainsworth Lane, Crowton, Northwich, Cheshire, CW8 2RS |
| LUUPPALA, Harri Pentti Kalervo RESIGNED | Director | 31 Oct 2005 | 22 Feb 2008 | | August 1958 | Hakatie 15, Tampere, Fi-33880, FOREIGN, Finland |
| PASQUIER, Eric RESIGNED | Director | 31 Jul 2014 | 09 Jan 2025 | France | January 1971 | 350, Euston Road, London, NW1 3AX, England |
| PELTOLA, Veli Erik RESIGNED | Director | 31 Oct 2005 | 16 Feb 2009 | | June 1951 | Alberganesplanadi 9a5, Espoo, Fi-02600, FOREIGN, Finland |
| PELTONEN, Ari Petteri RESIGNED | Director | 16 Feb 2009 | 10 Oct 2011 | Finland | January 1969 | Ground Floor, The Arenson Centre, Arenson Way, Houghton Regis, Dunstable, Bedfordshire, LU5 5UL, United Kingdom |
| PLANER, George, Dr RESIGNED | Director | | 15 Dec 1993 | England | January 1920 | Chase Lodge, 22a Fife Road, East Sheen, London, SW14 7EL |
| SHELTRUM, Peter John RESIGNED | Director | | 14 Nov 1996 | United Kingdom | May 1946 | 1 Heath Road, Hyde Heath, Amersham, Buckinghamshire, HP6 5RR |
| SINNETT, Paul Martin RESIGNED | Director | 15 Dec 1993 | 25 Mar 2004 | England | July 1958 | Mill Croft Barn, Water Stratford Road, Tingewick, MK18 4PD |
| SJOGERAS, Bjorn Ingvar RESIGNED | Director | 10 Oct 2011 | 14 Mar 2012 | Sweden | January 1969 | Ground Floor, The Arenson Centre, Arenson Way, Houghton Regis, Dunstable, Bedfordshire, LU5 5UL, United Kingdom |
| VINEY, Stephen Richard John RESIGNED | Director | | 24 Jan 1997 | | April 1953 | Autumn Leaves Cheddington Road, Pitstone, Leighton Buzzard, Bedfordshire, LU7 9AE |
| WEBBER, David Paul, Mr. RESIGNED | Director | 15 May 1996 | 31 Dec 2005 | | July 1965 | 12 Rotten Row, Great Brickhill, Milton Keynes, Buckinghamshire, MK17 9BA |
| WHITTAKER, Colin RESIGNED | Director | 01 Jun 1998 | 20 Jun 2002 | | December 1961 | Rosedale, Whiston, Northampton, NN7 1NN |
| WILLIAMS, David RESIGNED | Director | 26 Feb 1998 | 31 Jan 2000 | | May 1965 | 2 Seven Stiles Drive, Marple, Stockport, Cheshire, SK6 6LT |
| WOOD, Philip Basil RESIGNED | Director | 01 Sep 2000 | 31 Oct 2005 | England | August 1972 | Portelet, High Street Croydon, Royston, Hertfordshire, SG8 0DR |
| YAGER, Barry John RESIGNED | Director | | 21 Jul 1996 | England | July 1958 | 49 Glenmore Road, London, NW3 4DA |
| YOUNG, David James RESIGNED | Director | 01 Jul 2000 | 28 Sep 2001 | | June 1967 | 4 The Approach, Two Mile Ash, Milton Keynes, Buckinghamshire, MK8 8BJ |