| WARGENT, Nicholas James ACTIVE | Secretary | 11 May 2015 | | | | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| WARGENT, Nicholas James ACTIVE | Director | 28 Mar 2017 | | United Kingdom | October 1973 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| ALLY, Bibi Rahima RESIGNED | Nominee Secretary | 15 May 2002 | 30 May 2003 | | | 60 Harbury Road, Carshalton Beeches, Surrey, SM5 4LA |
| HANNANT, Michael Francis RESIGNED | Secretary | 30 May 2003 | 25 Mar 2009 | | | 4 Orchard Close, Newport, Saffron Walden, Essex, CB11 3QT |
| HINDSON, Richard Charles RESIGNED | Secretary | 04 Feb 2015 | 11 May 2015 | | | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| PARMENTER, Charlotte Lorraine RESIGNED | Secretary | 23 Sep 2009 | 04 Feb 2015 | | | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| WEATHERALL, Sally RESIGNED | Secretary | 25 Mar 2009 | 23 Sep 2009 | | | Mantles Green Cottage, Hyde Heath Road, Hyde Heath, Amersham, Buckinghamshire, HP6 5RW |
| ATTWOOD, Keith Donald RESIGNED | Director | 11 Jul 2002 | 30 Aug 2013 | England | August 1960 | Graunt Courts, Rayne, Braintree, Essex, CM77 6SD |
| BLAIR, Stephen RESIGNED | Director | 03 Mar 2014 | 28 Mar 2017 | England | November 1959 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| BROOKS, Jonathan RESIGNED | Director | 18 Aug 2004 | 27 Jul 2011 | England | January 1956 | 18 Norfolk Road, London, NW8 6HG |
| CICO, Carla RESIGNED | Director | 01 Apr 2016 | 28 Mar 2017 | Italy | February 1961 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| COLLETT, Brian RESIGNED | Nominee Director | 15 May 2002 | 27 Jun 2002 | | January 1943 | 254 Old Church Road, Chingford, London, E4 8BT |
| DANGERFIELD, Kevin Jeremy RESIGNED | Director | 28 Jan 2011 | 28 Mar 2017 | United Kingdom | January 1967 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| DAVISON, John Julian RESIGNED | Director | 07 Apr 2003 | 25 Jun 2004 | England | October 1960 | 46 Berwyn Road, Richmond, Surrey, TW10 5BS |
| GEOGHEGAN, Christopher Vincent RESIGNED | Director | 01 Oct 2009 | 31 Mar 2013 | United Kingdom | June 1954 | Bridgwater Road, Sidcot Winscombe, North Somerset, Avon, BS25 1NH |
| GODDEN, Ian Adam RESIGNED | Director | 01 Jun 2003 | 28 Jan 2011 | United Kingdom | November 1953 | Flat 3 41 Lonsdale Road, Barnes, London, SW13 9JR |
| HANNANT, Michael Francis RESIGNED | Director | 11 Jul 2002 | 02 Jun 2009 | | May 1957 | 4 Orchard Close, Newport, Saffron Walden, Essex, CB11 3QT |
| HASSALL, Michael RESIGNED | Director | 27 Jun 2002 | 25 Jun 2004 | | May 1953 | 1 Hornbeam Drive, Hartford, Cheshire, CW8 2GA |
| HINDSON, Richard Charles RESIGNED | Director | 01 May 2009 | 31 Jan 2017 | England | June 1959 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| JOHNSON, Neil Anthony RESIGNED | Director | 31 Mar 2013 | 28 Mar 2017 | United Kingdom | April 1949 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| KENNEDY, George RESIGNED | Director | 25 Jun 2004 | 01 Oct 2009 | | August 1940 | C/O Isotron House Moray Road, Elgin Industrial Estate, Swindon, Wiltshire, SN2 8AS |
| MAIN, Susan Lee RESIGNED | Director | 28 Mar 2017 | 09 Sep 2021 | United States | November 1958 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| MATHER, David Alexander Russell RESIGNED | Director | 28 Mar 2017 | 01 Jan 2019 | Scotland | January 1963 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| PICHELLI, Aldo RESIGNED | Director | 28 Mar 2017 | 09 Sep 2021 | United States | January 1952 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| RAJAGOPAL, Krishnamurthy, Dr RESIGNED | Director | 01 Nov 2010 | 03 Nov 2016 | England | September 1953 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| READING, Anthony John RESIGNED | Director | 25 Jun 2004 | 17 Jul 2013 | United Kingdom | August 1943 | 16 Heatherside Gardens, Farnham Common, Slough, Berkshire, SL2 3RR |
| ROKS, Edwin RESIGNED | Director | 28 Mar 2017 | 09 Sep 2021 | Netherlands | July 1964 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| SLAUGHTER, Ian Richard Holder RESIGNED | Director | 27 Jun 2002 | 26 Jun 2004 | United Kingdom | March 1954 | 25 Matham Road, East Molesey, Surrey, KT8 0SX |
| VANWEES, Jason RESIGNED | Director | 28 Mar 2017 | 09 Sep 2021 | United States | December 1971 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| WOOD, Alison RESIGNED | Director | 17 Jul 2013 | 28 Mar 2017 | England | June 1963 | 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU |
| CHRISTOPHER GEOGHEGAN RESIGNED Registration number 4439718 | Director | 01 Oct 2009 | 02 Jul 2010 | | | E2v, Technologies Plc, 106 Waterhouse Lane, Chelmsford, CM1 2QU |
| E2V TECHNOLOGIES PLC RESIGNED Registration number 4439718 | Director | 01 Oct 2009 | 01 Oct 2009 | | | E2v, Technologies Plc, 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, United Kingdom |