| SEGAL, Mark Kevin ACTIVE | Secretary | 01 Aug 2013 | | | | 2, Valentine Place, London, SE1 8QH, England |
| BLANDFORD, Mark Robert ACTIVE | Director | 15 Oct 2019 | | United Kingdom | November 1957 | 2, Valentine Place, London, SE1 8QH, England |
| BUCKLEY, Michael Anthony Christopher ACTIVE | Director | 01 Aug 2013 | | United Kingdom | April 1942 | One, Valentine Place, London, SE1 8QH, England |
| GREEN, Geoffrey Robert ACTIVE | Director | 01 Feb 2023 | | England | May 1988 | 2, Valentine Place, London, SE1 8QH, England |
| MASSION-GREENBERG, Anna ACTIVE | Director | 01 Nov 2022 | | United States | July 1978 | 2, Valentine Place, London, SE1 8QH, England |
| RYAN, James Alan ACTIVE | Director | 01 Aug 2013 | | Canada | August 1961 | 2, Valentine Place, London, SE1 8QH, England |
| SEGAL, Mark Kevin ACTIVE | Director | 01 Aug 2013 | | England | August 1977 | 2, Valentine Place, London, SE1 8QH, England |
| WILSON, Mark D ACTIVE | Director | 01 Aug 2013 | | Us/Kentucky | September 1960 | 2, Valentine Place, London, SE1 8QH, England |
| BELL, Donald James RESIGNED | Secretary | 11 Apr 2008 | 23 Jun 2008 | | | 3 Tricia House, 6 Park Lane, Knebworth, Hertfordshire, SG3 6PE |
| DUNHAM, Martin RESIGNED | Secretary | 08 Mar 2001 | 20 Mar 2002 | | | 1 Broadacres, Luton, Bedfordshire, LU2 7YF |
| GOWING, Sarah RESIGNED | Secretary | 01 Oct 2012 | 01 Aug 2013 | | | 44, Southampton Buildings, London, WC2A 1AP |
| PYLE, Gary Steven RESIGNED | Secretary | 22 Mar 2002 | 25 May 2007 | | | 5 Maltings Lane, Great Chishill, Royston, Hertfordshire, SG8 8SW |
| SMITH, Ian Kenneth RESIGNED | Secretary | 25 May 2007 | 11 Apr 2008 | | | 38, Church Street, Great Shelford, Cambridge, Cambs, CB22 5EL |
| SUGDEN, Dawn Priscilla RESIGNED | Secretary | 23 Jun 2008 | 28 Nov 2011 | | | North Cottage, 48 Main Street, Lyddington, Oakham, Leicestershire, LE15 9LT, United Kingdom |
| WEBSTER, Richard Philip James RESIGNED | Secretary | 28 Nov 2011 | 27 Sep 2012 | | | Shackleton House Kingfisher Way, Hinchingbrooke Business Park, Huntingdon, Cambridgeshire, PE29 6HB |
| ANAND, Rooney RESIGNED | Director | 17 Sep 2004 | 01 Mar 2007 | England | May 1964 | The Old School House, 30 Cavendish Avenue, Cambridge, CB1 7US |
| ASH, Christopher Peter James RESIGNED | Director | 06 Jun 2019 | 29 Sep 2021 | England | March 1973 | 2, Valentine Place, London, SE1 8QH, England |
| BALI, Atul RESIGNED | Director | 12 May 2014 | 28 Jun 2018 | United States | May 1971 | One, Valentine Place, London, SE1 8QH, England |
| BANNER, Paul Lancelot RESIGNED | Director | 04 Dec 2012 | 01 Aug 2013 | England | October 1952 | 44, Southampton Buildings, London, WC2A 1AP |
| BELL, Christopher, Mr. RESIGNED | Director | 01 Oct 2017 | 28 Jun 2018 | United Kingdom | November 1957 | Dadsley Well Farm, Dadsley Road, Tickhill, Doncaster, DN11 9JF, United Kingdom |
| BELL, Donald James RESIGNED | Director | 04 Aug 2008 | 04 Dec 2010 | England | June 1944 | 3 Tricia House, 6 Park Lane, Knebworth, Hertfordshire, SG3 6PE |
| BULKIN, Bernard Joseph RESIGNED | Director | 14 Jun 2011 | 01 Aug 2013 | England | March 1942 | 42, Berkeley Square, London, W1J 5AW, United Kingdom |
| BURNS, Alan Robert RESIGNED | Director | 23 Apr 2001 | 07 Sep 2001 | | November 1940 | 159 Victoria Avenue Dalkeith, Perth 6009, Western Australia, FOREIGN, Australia |
| CLARKE, John Henry RESIGNED | Director | 24 Apr 2001 | 17 May 2004 | | May 1959 | Long Acre House The Limes, Sarson Lane, Andover, Hampshire, SP11 8HX |
| COLLINS, Simon Mark RESIGNED | Director | 01 Aug 2013 | 11 Oct 2019 | England | September 1971 | One, Valentine Place, London, SE1 8QH, England |
| CORBISHLEY, Philip RESIGNED | Director | 04 Dec 2012 | 01 Aug 2013 | England | August 1953 | 44, Southampton Buildings, London, WC2A 1AP |
| DUNHAM, Martin RESIGNED | Director | 08 Mar 2001 | 20 Mar 2002 | | April 1963 | 1 Broadacres, Luton, Bedfordshire, LU2 7YF |
| EVANS, Stuart Mclellan RESIGNED | Director | 01 Oct 2007 | 14 Jun 2011 | England | October 1949 | 3 Wordsworth Grove, Cambridge, Cambridgeshire, CB3 9HH |
| GEHRINGER, Hagen, Dr RESIGNED | Director | 04 Dec 2012 | 28 Mar 2013 | Germany | July 1965 | Shackleton House Kingfisher Way, Hinchingbrooke Business Park, Huntingdon, Cambridgeshire, PE29 6HB |
| HEATHCOTE, John Gervase Mark RESIGNED | Director | 08 Mar 2001 | 01 Sep 2009 | | March 1954 | The Hoops Mill End, Sandon, Buntingford, Hertfordshire, SG9 0RN |
| MAHON, Stephen William, Dr RESIGNED | Director | 04 Jan 2004 | 31 Aug 2004 | England | September 1968 | 9 Deacons Lane, Ely, Cambridgeshire, CB7 4PS |
| PELCZER, Jeremy David RESIGNED | Director | 14 Jun 2011 | 13 Nov 2012 | England | June 1957 | Shackleton House Kingfisher Way, Hinchingbrooke Business Park, Huntingdon, Cambridgeshire, PE29 6HB |
| PIEPER, Roland RESIGNED | Director | 01 Sep 2009 | 14 Dec 2011 | | April 1956 | 4, Avenue Des Guelfes, Monaco, 98000, Netherlands |
| PYLE, Gary Steven RESIGNED | Director | 22 Mar 2002 | 28 Mar 2008 | | April 1966 | 5 Maltings Lane, Great Chishill, Royston, Hertfordshire, SG8 8SW |
| QUINN, Andrew James RESIGNED | Director | 09 May 2005 | 04 Dec 2012 | United Kingdom | January 1954 | The Old Vicarage, Stock Road, Calleywood, Chelmsford, CM2 8PP |
| RYAN, Michael David, Major General RESIGNED | Director | 27 Nov 2007 | 14 Jun 2011 | | January 1946 | 14850 Conference Centre Drive, Chantilly, Virginia 20151, Usa |
| SCROPE, Christopher Richard Adrian RESIGNED | Director | 26 Nov 2004 | 07 Sep 2006 | England | May 1970 | Green End Farmhouse, Green End, Dane End, Ware, Hertfordshire, SG12 0NX |
| SMITH, Ian Kenneth RESIGNED | Director | 25 May 2007 | 11 Apr 2008 | England | September 1957 | 38, Church Street, Great Shelford, Cambridge, Cambs, CB22 5EL |
| SOUTHON, Patrick James RESIGNED | Director | 01 Aug 2013 | 11 Feb 2020 | United Kingdom | December 1971 | 2, Valentine Place, London, SE1 8QH, England |
| SWEENEY, Brian Neligan Christopher, Dr RESIGNED | Director | 27 May 2004 | 04 Dec 2012 | British | January 1944 | 196 Court Lane, Dulwich, London, SE21 7ED |
| TAYLOR, Peter RESIGNED | Director | 24 Apr 2001 | 27 May 2004 | England | May 1947 | 10 Blackheath Park, London, SE3 9RP |
| TRENTER, Ronald Charles RESIGNED | Director | 24 Apr 2001 | 09 May 2005 | | June 1944 | The Lodge, Warren Lane, Cottered Buntingford, SG9 9QS |
| WEBSTER, Richard Philip James RESIGNED | Director | 29 Nov 2010 | 30 Sep 2012 | England | May 1965 | Shackleton House, Kingfisher Way, Hinchingbrooke Business Park, Huntingdom, Cambridgeshire, PE29 6HB |