| ANDERSON, David Mark ACTIVE | Secretary | 15 Jun 2026 | | | | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| ANDERSON, David Mark ACTIVE | Director | 15 Jun 2026 | | England | May 1963 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| BOTELER, Andrew Norman ACTIVE | Director | 29 Sep 2025 | | England | April 1966 | 22, Parkelands, Bovey Tracey, Newton Abbot, TQ13 9BJ, England |
| DAVIS, Roy Gordon ACTIVE | Director | 29 Sep 2025 | | England | January 1956 | Blue Cedar Cottage, Spinney Lane, West Chiltington, Pulborough, RH20 2NX, England |
| MARSH, David John ACTIVE | Director | 01 Aug 2017 | | England | September 1964 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| SOUKUP, Duncan Charles ACTIVE | Director | 29 Sep 2025 | | Monaco | September 1954 | 9et, Gauche, Les Caravelles Bloc A, 25 Bvd Albert 1er, Monaco |
| ASHLEY, John Bedford RESIGNED | Secretary | 22 Feb 1995 | 05 Dec 1996 | | | 18 Old Farm House, Primrose Hill, Bath, BA1 2UT |
| BOWLAND, Nigel Graham RESIGNED | Secretary | 06 Sep 1999 | 29 May 2012 | | | 11 Brooke Close, Harrogate, North Yorkshire, HG1 3ND |
| BTESH, John Richard Mark RESIGNED | Secretary | | 16 Dec 1994 | | | Europa Boulevard, Gemini Park, Warrington, Cheshire, WA5 5TN |
| DAY, Charmaine Roxane RESIGNED | Secretary | 20 Dec 2016 | 12 Apr 2024 | | | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| GREETHAM, Brent Raymond RESIGNED | Secretary | 24 Feb 2025 | 15 Jun 2026 | | | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| NEYSARI, Ario Barzan RESIGNED | Secretary | 05 Jun 2024 | 27 Jan 2025 | | | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| ROSS, Melanie RESIGNED | Secretary | 05 Aug 2015 | 20 Dec 2016 | | | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| RUSSELL, Leslie James, Doctor RESIGNED | Secretary | 16 Dec 1994 | 22 Feb 1995 | | | 12 Napier Court, Barton Lane, Abingdon, Oxfordshire, OX14 3YT |
| STIRLING, David Andrew RESIGNED | Secretary | 05 Dec 1996 | 06 Sep 1999 | | | 12 Barton Road, London, W14 9HD |
| THORNTON, Michael RESIGNED | Secretary | 12 Dec 2011 | 05 Aug 2015 | | | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| ASHLEY, John Bedford RESIGNED | Director | 20 Sep 1995 | 05 Dec 1996 | | | 18 Old Farm House, Primrose Hill, Bath, BA1 2UT |
| BELLHOUSE, Brian John, Professor RESIGNED | Director | | 13 May 1992 | | October 1936 | The Lodge, North Street, Islip, Oxfordshire, OX5 2SQ |
| BOWLAND, Nigel Graham RESIGNED | Director | 06 Sep 1999 | 30 Sep 2014 | United Kingdom | July 1961 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| BTESH, John Richard Mark RESIGNED | Director | | 16 Dec 1994 | England | August 1957 | Europa Boulevard, Gemini Park, Warrington, Cheshire, WA5 5TN |
| DAWSON, Paul William RESIGNED | Director | | 12 Feb 1992 | | August 1959 | 6 Roseworth Avenue, Gosforth, Newcastle Upon Tyne, Tyne & Wear, NE3 1NB |
| DAY, Charmaine Roxane RESIGNED | Director | 15 Nov 2021 | 12 Apr 2024 | England | August 1982 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| DJAMARANI, Keyvan Mehdi RESIGNED | Director | 05 Dec 2023 | 29 Sep 2025 | United Kingdom | October 1961 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| GLASS, Colin RESIGNED | Director | 07 Jul 1998 | 13 Oct 2014 | England | June 1943 | 66, The Fairway, Leeds, West Yorkshire, LS17 7PD |
| GLENN, Jonathan Martin RESIGNED | Director | 22 May 2023 | 29 Sep 2025 | United Kingdom | November 1968 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| GREETHAM, Brent Raymond RESIGNED | Director | 24 Feb 2025 | 15 Jun 2026 | England | February 1976 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| HALL, Richard Charles RESIGNED | Director | 28 Apr 1993 | 11 Jun 1998 | | April 1960 | 62 Hanson Road, Abingdon, Oxfordshire, OX14 1YL |
| HARDY, Paul James RESIGNED | Director | 20 Jan 2016 | 19 Jun 2024 | England | February 1960 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| HARRIS, John Gordon RESIGNED | Director | 01 May 1992 | 04 Dec 1998 | | May 1934 | 6 Kippington House, 126 Kippington Road, Sevenoaks, Kent, TN13 2LN |
| HEAP, John Nicholas Desmond, Dr RESIGNED | Director | 16 Dec 1992 | 16 Dec 1994 | | July 1951 | 18 Wilby Mews, Holland Park, London, W11 3NP |
| HORROCKS, Jonathan RESIGNED | Director | 05 Dec 1996 | 11 Jun 1998 | | | Mary Tavy, Orchard Close, East Hendred, Oxfordshire, OX12 8JJ |
| KESTEVEN, Patrick James Leighton RESIGNED | Director | | 16 Dec 1994 | | November 1949 | Europa Boulevard, Gemini Park, Warrington, Cheshire, WA5 5TN |
| LIVERSIDGE, Douglas Brian RESIGNED | Director | 07 Jul 1998 | 20 Jan 2016 | England | August 1936 | Nicholas Hall, Thornhill, Hope Valley, S33 0BR |
| LOMAS, Ian RESIGNED | Director | 07 Jul 1998 | 10 Apr 2000 | | August 1955 | Copper Beech House, Chevin Avenue The Homestead, Menston, LS29 6PE |
| LONG, David Brian RESIGNED | Director | 16 Dec 1994 | 31 Mar 2000 | | October 1943 | 30 Esher Park Avenue, Esher, Surrey, KT10 9NX |
| MARTIN, Christopher Jonathan RESIGNED | Director | 10 Jun 2024 | 12 Feb 2025 | United Kingdom | September 1968 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| MARTIN, Philip Charles RESIGNED | Director | | 28 Apr 1993 | | July 1938 | Europa Boulevard, Gemini Park, Warrington, Cheshire, WA5 5TN |
| MCMAHON, Michael John, Professor RESIGNED | Director | 01 Oct 2007 | 27 Jun 2023 | England | June 1942 | 26 Foxhill Crescent, Leeds, West Yorkshire, LS16 5PD |
| MORAN, Stuart Skelton RESIGNED | Director | 10 Apr 2000 | 10 Jul 2008 | | March 1964 | Moorhouse Farm, Moor Road, Bramhope, Leeds, West Yorkshire, LS16 9HH |
| POWER, Adam RESIGNED | Director | 01 Aug 2017 | 31 Dec 2021 | United Kingdom | January 1964 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| PRIESTLEY, Andrew Mark RESIGNED | Director | | 16 Dec 1994 | | July 1949 | Europa Boulevard, Gemini Park, Warrington, WA5 5TN |
| REA, Christopher John RESIGNED | Director | 24 Jun 2014 | 15 Oct 2015 | England | January 1954 | Global Technology Centre, Mill Close, Rotherham, South Yorkshire, S60 1BZ, Great Britain |
| ROGERS, Nigel Foster RESIGNED | Director | 27 Oct 2015 | 04 Dec 2023 | England | July 1961 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| ROSS, Melanie RESIGNED | Director | 05 Aug 2015 | 28 Jun 2019 | United Kingdom | October 1979 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| RUSSELL, Leslie James, Doctor RESIGNED | Director | 15 Apr 1994 | 20 Sep 1995 | | January 1953 | 12 Napier Court, Barton Lane, Abingdon, Oxfordshire, OX14 3YT |
| SIMKINS, Raymond RESIGNED | Director | 07 Jul 1998 | 13 Oct 2014 | United Kingdom | June 1943 | 16, Chelsea Square, London, England, SW3 6LF, United Kingdom |
| STIRLING, David Andrew RESIGNED | Director | 05 Dec 1996 | 06 Sep 1999 | United Kingdom | December 1950 | 12 Barton Road, London, W14 9HD |
| TAYLOR, Alistair Henderson RESIGNED | Director | 20 Jan 2016 | 31 Dec 2021 | England | November 1941 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| THORNTON, Michael Robert RESIGNED | Director | 23 May 2012 | 05 Aug 2015 | United Kingdom | December 1975 | Clayton Wood House 6, Clayton Wood Bank, Leeds, West Yorkshire, LS16 6QZ |
| WATHEN, Charles David RESIGNED | Director | | 30 Apr 1994 | | August 1947 | Europa Boulevard, Gemini Park, Warrington, Cheshire, WA5 5TN |
| WILSON, Trevor William RESIGNED | Director | | 02 May 1997 | | September 1945 | 12 Napier Court, Abingdon Science Park, Abingdon, Oxon, OX14 3YT |