| DEGG, Emma Jane ACTIVE | Secretary | 28 Feb 2017 | | | | Daresbury Laboratory, Keckwick Lane, Daresbury, Warrington, Cheshire, WA4 4AD, England |
| BUCHANAN, Malcolm James ACTIVE | Director | 07 Dec 2023 | | England | November 1967 | Daresbury Laboratory, Keckwick Lane, Daresbury, Warrington, Cheshire, WA4 4AD, England |
| DEGG, Emma Jane ACTIVE | Director | 01 Mar 2017 | | England | July 1970 | Daresbury Laboratory, Keckwick Lane, Daresbury, Warrington, Cheshire, WA4 4AD, England |
| DOBBS, Nicholas Arthur Montagu ACTIVE | Director | 05 Dec 2024 | | United Kingdom | February 1973 | Daresbury Laboratory, Keckwick Lane, Daresbury, Warrington, Cheshire, WA4 4AD, England |
| FINLAYSON, Andrew Neil ACTIVE | Director | 04 Dec 2025 | | England | April 1973 | Daresbury Laboratory, Keckwick Lane, Daresbury, Warrington, Cheshire, WA4 4AD, England |
| PEPPI, Simone Sara ACTIVE | Director | 10 Dec 2020 | | England | August 1962 | Breezehill, Hawley Drive, Hale Barns, Altrincham, WA15 0DP, England |
| ROGERS, Kirsty Anne ACTIVE | Director | 05 Dec 2024 | | United Kingdom | December 1967 | Daresbury Laboratory, Keckwick Lane, Daresbury, Warrington, Cheshire, WA4 4AD, England |
| WOODROOFE, Christopher John ACTIVE | Director | 11 Feb 2025 | | England | October 1977 | Olympic House, Manchester Airport, Manchester, M90 1QX, England |
| PIPER, Geoffrey Steuart Fairfax RESIGNED | Secretary | | 28 Feb 2017 | | | 9 Leighton Hall The Runnell, Neston, Cheshire, CH64 3TQ |
| ALLIANCE, David, Sir RESIGNED | Director | | 15 Jul 1993 | | June 1932 | Flat 6, 33-36 Chester Square, London, SW1W 9HT |
| BEAUMONT, Martin Dudley RESIGNED | Director | 23 Nov 2005 | 31 Jul 2007 | United Kingdom | August 1949 | Hand Green House, Hand Green, Tarporley, Cheshire, CW6 9SN |
| BLACKBURN, Michael RESIGNED | Director | 02 Dec 2010 | 31 Jan 2018 | England | December 1959 | Daresbury Laboratory Room M2, Keckwick Lane, Daresbury, Warrington, Cheshire, WA4 4AD |
| BOOTH, Arthur Thomas RESIGNED | Director | | 29 Oct 1996 | | September 1935 | Lee Wood Reservoir Road, Whaley Bridge, Stockport, Cheshire, SK12 7BW |
| BROWN, Rodney RESIGNED | Director | | 30 Sep 1994 | | May 1935 | Zeneca Specialties, Hexagon House, Blackley, Manchester, M9 3DA |
| CARTER, Richard John RESIGNED | Director | 06 Dec 2018 | 10 Dec 2020 | England | March 1962 | Earl Road, Stanley Green Industrial Estate, Cheadle Hulme, Cheadle, Cheshire, SK8 6QG, England |
| CAVENDISH, Gerald, His Grace The Duke Of Westminster RESIGNED | Director | | 24 Sep 1997 | | December 1951 | Eaton Hall, Eccleston, Cheshire, CH4 9ET |
| CHAMBERLAIN, Leslie Neville RESIGNED | Director | 14 Feb 1994 | 15 Sep 1999 | England | October 1939 | Oaklands, 2 The Paddock Hinderton Road, Neston, Cheshire, CH64 9PH |
| CHAMBERS, Stuart John RESIGNED | Director | 25 Nov 2003 | 09 Dec 2009 | | May 1956 | Foxfields, Peover Lane, Chelford, Macclesfield, Cheshire, SK11 9AL |
| COCKSHAW, Alan, Sir RESIGNED | Director | | 24 Sep 1997 | United Kingdom | July 1937 | Red Hill House 280 Leigh Road, Worsley, Manchester, M28 1LH |
| CURRY, Adrian Thomas RESIGNED | Director | 10 Dec 2020 | 07 Dec 2023 | England | September 1971 | Encirc Ltd, Ash Road, Elton, Chester, CH2 4LF, England |
| FAULKNER, Malcolm George RESIGNED | Director | | 21 Jun 1993 | United Kingdom | August 1944 | 14 Sudbury Drive, Lostock, Bolton, Lancashire, BL6 4PP |
| GILLIBRAND, Sydney RESIGNED | Director | 14 Feb 1994 | 13 Aug 2001 | | June 1934 | 26a Roland Way, London, SW7 3RE |
| GRAY, Christopher James RESIGNED | Director | 01 Feb 2019 | 10 Dec 2020 | England | June 1973 | Kingsley Hall, Bailey Lane, Manchester, Greater Manchester, M90 4AN, United Kingdom |
| GREER, Terence Michael RESIGNED | Director | | 01 May 1997 | | March 1936 | Dunrobin Feather Lane, Heswall, Wirral, Merseyside, L60 4RL |
| GREGORY, Trevor John RESIGNED | Director | 01 Jan 2009 | 30 Jun 2011 | England | June 1956 | 16a Brooklands Road, Eccleston, St Helens, Merseyside, WA10 5HF |
| GROVE, William Dennis RESIGNED | Director | | 01 Apr 1993 | | July 1927 | 1 Sandringham Court, Wilmslow, Cheshire, SK9 1PW |
| HARDING, Christopher George Francis, Sir RESIGNED | Director | | 31 Mar 1992 | | October 1939 | 7 Rutland Street, London, SW7 1EJ |
| HARVEY, Kenneth George RESIGNED | Director | 14 Feb 1994 | 08 Nov 1995 | | July 1940 | Pine View Beechfield Road, Alderley Edge, Cheshire, SK9 7EF |
| HATTON, Christopher John Bower RESIGNED | Director | | 09 Aug 1993 | | March 1933 | The Greenalls Group, Wilderspool House, Greenall Ave Warrington, WA1 6RA |
| HOPE, Colin Frederick Newton, Sir RESIGNED | Director | 14 Feb 1994 | 06 Mar 1998 | | May 1932 | Hornby Cottage High Street, Welford On Avon, Warwickshire, CV37 8EF |
| HOUGH, Robert Eric RESIGNED | Director | 24 Sep 1997 | 17 Aug 2009 | England | July 1945 | Manor House, 10 Theobald Road, Bowdon, Cheshire, WA14 3HG |
| LEE, Paul Anthony RESIGNED | Director | 01 Aug 2007 | 31 Oct 2013 | United Kingdom | January 1947 | 100 Barbirolli Square, Manchester, M2 3AB |
| LINDSAY, Sandra RESIGNED | Director | 30 Nov 2017 | 09 Dec 2021 | United Kingdom | December 1965 | Giant's Basin, Potato Wharf, Castlefield, Manchester, Greater Manchester, M3 4NB |
| LORD, Geoffrey RESIGNED | Director | | 06 Dec 1999 | | April 1939 | Kellogg Company Of Gb, Talbot Road, Manchester, M16 0PU |
| MAIER, Juergen Wolfgang, Professor RESIGNED | Director | 12 Dec 2011 | 30 Nov 2018 | United Kingdom | January 1964 | Sir William Siemens House, Princess Road, Manchester, M20 2UR, United Kingdom |
| MUIRHEAD, Geoffrey RESIGNED | Director | 20 Jun 2005 | 02 Dec 2010 | England | July 1949 | The Manchester Airport Group Plc, 6th Floor Olympic House, Manchester Airport, Greater Manchester, M90 1QX |
| MURPHY, Jonathan Stewart RESIGNED | Director | 10 Dec 2020 | 04 Dec 2025 | United Kingdom | June 1972 | The Brew House, Greenalls Avenue, Warrington, WA4 6HL, England |
| PEDELTY, Mervyn Kay, Sir RESIGNED | Director | 24 Sep 1997 | 18 Mar 2005 | | January 1949 | 90 Campden Hill Court, Campden Hill Road, London, W8 7HW |
| PILKINGTON, Anthony Richard, Sir RESIGNED | Director | | 01 Jun 1995 | | June 1935 | Crofton Lodge, Kingsley, Warrington, Cheshire, WA6 6LU |
| PIPER, Geoffrey Steuart Fairfax RESIGNED | Director | | 28 Feb 2017 | United Kingdom | June 1943 | 9 Leighton Hall The Runnell, Neston, Cheshire, CH64 3TQ |
| PITCHER, Desmond Henry, Sir RESIGNED | Director | | 01 Mar 1996 | | March 1935 | Onston Hall, Onston, Cheshire, CW8 2RG |
| PRINCE, Geoffrey RESIGNED | Director | | 04 Jun 1992 | | April 1942 | Royal Insurance 144 PO BOX, Liverpool, Merseyside, L69 3EN |
| QUINN, Andrew RESIGNED | Director | | 30 Sep 1992 | | March 1937 | 28 Clothorn Road, Didsbury, Manchester, Lancashire, M20 6BP |
| RAMSBOTTOM, Graham Paul RESIGNED | Director | 05 Sep 2014 | 26 Nov 2019 | United Kingdom | July 1965 | The Quarry, Hill Road, Eccleston, Chester, Cheshire, CH4 9HQ, United Kingdom |
| ROBERTS, John Edward RESIGNED | Director | 29 Nov 2001 | 31 Mar 2006 | England | March 1946 | Beaconhurst, Tarvin Road, Frodsham, Cheshire, WA6 6UU |
| ROSS, James Hood RESIGNED | Director | 24 Sep 1997 | 06 Mar 2002 | England | September 1938 | Flat 4, 55 Onslow Square, London, SW7 3LR |
| TAYLOR, David Wilson RESIGNED | Director | | 20 Jul 1993 | | May 1950 | 19 Castle Walk, Penwortham, Preston, PR1 0BP |
| THOMAS OF MACCLESFIELD, Terence James, Lord RESIGNED | Director | | 24 Sep 1997 | | October 1937 | 51 Willowmead Drive, Prestbury, Cheshire, SK10 4DD |
| THOMPSON, Gilbert, Sir RESIGNED | Director | | 31 Aug 1994 | | March 1930 | Manchester Airport, Wythenshawe, Manchester, M22 5PA |
| TOPLISS, Richard Simon RESIGNED | Director | 13 Jan 2020 | 08 Dec 2022 | England | February 1956 | Natwest, 1st Floor, 1 Hardman Boulevard, Manchester, M3 3AQ, England |
| WARREN, Joelle Susan RESIGNED | Director | 13 Jan 2020 | 05 Dec 2024 | England | November 1962 | Grove House, Hassall Road, Alsager, Stoke-On-Trent, ST7 2SL, England |
| WILTON, Michael Thomas Courtney RESIGNED | Director | 10 Dec 2020 | 05 Dec 2024 | England | April 1965 | 5, Southern Road, Sale, M33 6HP, England |