| LAWES, Nikita Kaushik ACTIVE | Secretary | 05 Mar 2026 | | | | 103-105, Bath Road, Slough, Berkshire, SL1 3UH, United Kingdom |
| HODGES, James Edward ACTIVE | Director | 16 Dec 2020 | | England | May 1977 | 103-105, Bath Road, Slough, Berkshire, SL1 3UH, United Kingdom |
| WILLIAMS, Gareth Robert ACTIVE | Director | 21 Jul 2025 | | United Kingdom | September 1978 | 103-105, Bath Road, Slough, Berkshire, SL1 3UH, United Kingdom |
| HODGES, James Edward RESIGNED | Secretary | 08 Jun 2020 | 08 Feb 2025 | | | 103-105, Bath Road, Slough, Berkshire, SL1 3UH, United Kingdom |
| KENWARD, Sally RESIGNED | Secretary | 08 Feb 2025 | 05 Mar 2026 | | | 103-105, Bath Road, Slough, Berkshire, SL1 3UH, United Kingdom |
| LOGAN, Christine Anne-Marie RESIGNED | Secretary | 16 Dec 2014 | 08 Jun 2020 | | | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| RICHARDSON, Elizabeth Anne RESIGNED | Secretary | 28 Dec 2001 | 16 Dec 2014 | | | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| SALTMARSH, Philip David RESIGNED | Secretary | 27 Oct 1995 | 01 Mar 1996 | | | 106 Broadwood Avenue, Ruislip, Middlesex, HA4 7XT |
| TAYLOR, Alec RESIGNED | Secretary | 17 Mar 1995 | 27 Oct 1995 | | | 36 High Beeches, Gerrards Cross, Buckinghamshire, SL9 7HX |
| WILSON, Paul James RESIGNED | Secretary | 01 Mar 1996 | 28 Dec 2001 | | | 47 Wordsworth Drive, Cheam, Surrey, SM3 8HE |
| TRUSEC LIMITED RESIGNED | Nominee Secretary | 04 Nov 1994 | 17 Mar 1995 | | | 35 Basinghall Street, London, EC2V 5DB |
| CLEMENTS, Patrick Norris, Dr RESIGNED | Director | 03 Jun 2013 | 30 Apr 2016 | United Kingdom | July 1964 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| COBB, Anthony Farley RESIGNED | Director | 30 Nov 1999 | 28 Feb 2003 | England | April 1944 | Woodstock, Mays Green Harpsden, Henley On Thames, Oxfordshire, RG9 4AL |
| DAY, Colin Richard RESIGNED | Director | 23 Apr 2001 | 08 Feb 2011 | England | March 1955 | The Beeches, 17 Stratton Road, Beaconsfield, Buckinghamshire, HP9 1HR |
| DOBBIE, Iain George RESIGNED | Director | 17 Mar 1995 | 31 Mar 1998 | | October 1937 | Cedar Ridge 218 Upper Chobham Road, Camberley, Surrey, GU15 1HD |
| DOHERTY, Mary Elizabeth RESIGNED | Director | 08 Feb 2011 | 12 Feb 2013 | England | October 1957 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| EDWARDS, Simon Jeremy RESIGNED | Director | 26 Feb 2003 | 11 Dec 2013 | United Kingdom | April 1961 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| GREENSMITH, Richard Mark RESIGNED | Director | 21 Apr 2016 | 21 Jul 2025 | England | June 1973 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| HOLDRUP, Richard Edmund Francis RESIGNED | Director | 27 Jun 2000 | 09 Apr 2001 | | February 1954 | 9 Chinnocks Wharf, 42 Narrow Street, London, E14 8DJ |
| JONES, Jonathan Hugh RESIGNED | Director | 26 Jun 2000 | 24 Feb 2003 | | July 1956 | 28 Colebrooke Avenue, Ealing, London, W13 8JY |
| KEELEY, Martin Spencer RESIGNED | Director | 30 Jan 2009 | 28 Apr 2012 | United Kingdom | March 1956 | Kenmore, Devenish Road, Sunningdale, Berkshire, SL5 9PF |
| MORDAN, William Richard RESIGNED | Director | 31 Jul 2012 | 01 Oct 2015 | United Kingdom | September 1969 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| NASH, Simon Anthony RESIGNED | Director | 01 Jul 2009 | 30 Jun 2015 | England | May 1961 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| PEACH, Alasdair James RESIGNED | Director | 20 Aug 2019 | 16 Dec 2020 | United Kingdom | June 1970 | 103-105, Bath Road, Slough, Berkshire, SL1 3UH, United Kingdom |
| REEVE, Robert Arthur RESIGNED | Nominee Director | 04 Nov 1994 | 17 Mar 1995 | | September 1931 | 6 Wellesford Close, Banstead, Surrey, SM7 2HL |
| ROWE, Drusilla Charlotte Jane RESIGNED | Nominee Director | 04 Nov 1994 | 17 Mar 1995 | | April 1961 | Flat E, 13 Saint Georges Drive, London, SW1V 4DJ |
| RUETHER, Frank Albert RESIGNED | Director | 17 Jul 2000 | 30 Jun 2009 | | September 1952 | Robinswood Park, The Covert, Sunninghill, SL5 9JS |
| SALTMARSH, Philip David RESIGNED | Director | 17 Mar 1995 | 26 Jun 2000 | | August 1939 | 106 Broadwood Avenue, Ruislip, Middlesex, HA4 7XT |
| SINGH, Gurveen RESIGNED | Director | 13 Dec 2017 | 16 Apr 2020 | United Arab Emirates | October 1957 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |
| TOOHEY, Jonathan Keith RESIGNED | Director | 26 Feb 2003 | 09 Apr 2003 | England | May 1964 | 4 Dale Gardens, Sandhurst, Berkshire, GU47 8LA |
| TURRELL, Michael Frederick RESIGNED | Director | 31 Mar 1998 | 10 Dec 1999 | | July 1943 | Meadow Vale Lodge, Stokesheath Road, Oxshott, Surrey, KT22 0PS |
| WILSON, Mark Raymond RESIGNED | Director | 09 Apr 2003 | 30 Jan 2009 | | February 1968 | 37 Balmoral Gardens, Windsor, Berkshire, SL4 3SG |
| YATES, Deborah Anne RESIGNED | Director | 30 Jun 2015 | 13 Dec 2017 | England | November 1972 | 103-105 Bath Road, Slough, Berkshire, SL1 3UH |