| COX, Joanne Margaret ACTIVE | Director | 06 Jan 2025 | | England | August 1973 | Cygnus, Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6LS, England |
| HARPER, Amy Victoria ACTIVE | Director | 02 Jan 2026 | | England | January 1991 | Cygnus, Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6LS, England |
| SOMERVILLE, Martin ACTIVE | Director | 16 Oct 2024 | | England | February 1977 | Cygnus, Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6LS, England |
| GAJADHARSINGH, Anthony George RESIGNED | Secretary | 16 Sep 1996 | 08 Nov 1999 | | | 96 Ashmill Street, London, NW1 6RA |
| GAJADHARSINGH, Anthony George RESIGNED | Secretary | 18 Jul 1995 | 22 Mar 1996 | | | 14 Hollywood Court, Inglis Road Ealing, London, W5 3RJ |
| MARTIN, Ilana RESIGNED | Secretary | 22 Mar 1996 | 16 Sep 1996 | | | Seven Gables, 30 Letchmore Road, Radlett, Hertfordshire, WD7 8HT |
| ROBERTSON, Andrew Bruce RESIGNED | Secretary | 01 Feb 1994 | 18 Jul 1995 | | | 9 Eastor, Welwyn Garden City, Hertfordshire, AL7 1PN |
| SAUNDERS, Malcolm Waters RESIGNED | Secretary | 19 Nov 1992 | 31 Jan 1994 | | | Ty Newydd Grange Road, Ash, Aldershot, Hampshire, GU12 6HB |
| INVENSYS SECRETARIES LIMITED RESIGNED | Secretary | 08 Nov 1999 | 07 Sep 2021 | | | 2nd Floor 80, Victoria Street, London, SW1E 5JL, United Kingdom |
| OFFICE ORGANIZATION & SERVICES LIMITED RESIGNED | Secretary | 23 Sep 1992 | 19 Nov 1992 | | | Level 1 Exchange House, Primrose Street, London, EC2A 2HS |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 22 Sep 1992 | 23 Sep 1992 | | | 26, Church Street, London, NW8 8EP |
| BAYS, James Claude RESIGNED | Director | 06 Aug 1999 | 30 Mar 2001 | | July 1949 | 28 Elmstone Road, Fulham, London, SW6 5TN |
| BECKER, Kelly Jean RESIGNED | Director | 31 Dec 2020 | 31 Aug 2021 | United Kingdom | January 1978 | Schneider Electric, Stafford Park 5, Telford, TF3 3BL, England |
| BHOGAITA, Rajesh Prabhashanker RESIGNED | Director | 01 Feb 2023 | 31 Jul 2025 | England | September 1962 | 11, Kingsway Mews, Farnham Common, Bucks, SL2 3UR, England |
| BOOTH, Michael RESIGNED | Director | 12 Feb 1993 | 26 Sep 2002 | | August 1958 | 9 Saint Giles Street, New Bradwell, Milton Keynes, Buckinghamshire, MK13 0BE |
| BRAKA, Sephic RESIGNED | Director | 19 Nov 1992 | 22 Sep 1993 | | April 1967 | 8 Raffles House, Hendon, London, NW4 4BU |
| BROWN, Steven Paul RESIGNED | Director | 16 Nov 2004 | 06 Jan 2025 | England | September 1965 | Cygnus, Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6LS, England |
| CHAPMAN, Peter Lawton RESIGNED | Director | 24 Jun 1997 | 06 Aug 1999 | | September 1936 | 4 Ashleigh Road, Solihull, West Midlands, B91 1AE |
| CLAYTON, John Reginald William RESIGNED | Director | 01 May 2001 | 31 Dec 2005 | England | December 1950 | Matley House, Grange Lane, Little Dunmow, Great Dunmow, Essex, CM6 3HY |
| CLOUGH, Adrian John RESIGNED | Director | 22 Sep 1992 | 19 Nov 1992 | | April 1963 | 4 Norfolk House, London, W6 7QT |
| COCHRANE, Adam Craven RESIGNED | Director | 01 May 2001 | 31 Jan 2003 | | July 1957 | 41 Highfield Drive, Uxbridge, Middlesex, UB10 8AW |
| DEMOCRATIS, John William RESIGNED | Director | 18 Jan 1994 | 21 Nov 1995 | | April 1947 | 1 Nelson Avenue, St Albans, Hertfordshire, AL1 5SE |
| EGGLETON, Michael Noel RESIGNED | Director | 19 Nov 1992 | 06 Aug 1999 | | December 1932 | Bardsey 22 Ascott Avenue, Ealing, London, W5 5QB |
| ELLIGATE, David RESIGNED | Director | 12 Feb 1993 | 28 Feb 1994 | | June 1946 | 35 Overhall, Southwick, West Sussex, BN42 4WH |
| GAJADHARSINGH, Anthony George RESIGNED | Director | 01 Jan 1998 | 11 Oct 2004 | United Kingdom | April 1966 | 96 Ashmill Street, London, NW1 6RA |
| HERON, Stephen Richard RESIGNED | Director | 14 Nov 2006 | 11 Apr 2011 | England | March 1957 | 3rd Floor, 40, Grosvenor Place, London, SW1X 7AW |
| HUGHES, Michael Patrick RESIGNED | Director | 12 Sep 2017 | 31 Dec 2020 | England | June 1965 | ., Stafford Park 5, Telford, TF3 3BL, England |
| HULL, Victoria Mary RESIGNED | Director | 23 Jul 2001 | 31 Mar 2014 | United Kingdom | March 1962 | 3rd Floor, 40, Grosvenor Place, London, SW1X 7AW |
| KELLY, Noel Anthony RESIGNED | Director | 28 Oct 2025 | 25 Nov 2025 | England | July 1968 | Cygnus, Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6LS, England |
| LAMBETH, Trevor RESIGNED | Director | 31 Mar 2014 | 31 Aug 2021 | England | November 1963 | ., Stafford Park 5, Telford, TF3 3BL, England |
| MATTHEWS, Anna Christina RESIGNED | Director | 03 Dec 2002 | 17 Jul 2005 | England | May 1963 | 3 Landsborough Gate, Willen, Milton Keynes, MK15 9EU |
| NEAL, Leon RESIGNED | Nominee Director | 22 Sep 1992 | 19 Nov 1992 | | March 1926 | 34 Hill Crest, Tunbridge Wells, Kent, TN4 0AJ |
| OREILLY, Joseph Christopher William RESIGNED | Director | 19 Nov 1992 | 30 Jun 2001 | | October 1951 | 1 Hartwell Road, Hanslope, Milton Keynes, Bucks, MK19 7BY |
| POWER, Bill RESIGNED | Director | 12 Feb 2022 | 31 Oct 2022 | Scotland | September 1969 | Cygnus, Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6LS, England |
| RANDERY, Tanuja RESIGNED | Director | 01 Mar 2015 | 13 Sep 2017 | England | September 1966 | ., Stafford Park 5, Telford, TF3 3BL, England |
| SMITH, Kevin Charles RESIGNED | Director | 31 Jan 2009 | 31 Jul 2015 | United Kingdom | August 1959 | 2nd Floor, 80, Victoria Street, London, SW1E 5JL, England |
| STANTON, John RESIGNED | Director | 18 Apr 1995 | 06 Aug 1999 | England | March 1947 | Canon House, Canonbury Street, Berkeley, Glos, GL13 9PJ |
| THOMAS, David Jeremy RESIGNED | Director | 24 Jul 2003 | 02 Mar 2009 | United Kingdom | May 1954 | 11 Coutts Crescent, 13-23 St Albans Road, London, NW5 1RF |
| THOROGOOD, Stuart RESIGNED | Director | 31 Mar 2014 | 01 Mar 2015 | England | January 1958 | 2nd Floor, 80, Victoria Street, London, SW1E 5JL, England |
| VOAK, Timothy John RESIGNED | Director | 21 Dec 2000 | 27 Jun 2001 | | April 1955 | Squirrel Wood, Seven Hills Road, Cobham, Surrey, KT11 1ER |
| WEXLER, Peter Irwin RESIGNED | Director | 31 Mar 2014 | 17 Dec 2018 | United States | December 1967 | ., Stafford Park 5, Telford, TF3 3BL, England |