| WHYTE, Victoria Anne ACTIVE | Secretary | 18 Dec 1998 | | | | 79, New Oxford Street, London, WC1A 1DG, United Kingdom |
| EDINBURGH PHARMACEUTICAL INDUSTRIES LIMITED ACTIVE | Secretary | 31 Aug 2006 | | | | Shewalton Road, Shewalton Road, Irvine, Ayrshire, KA11 5AP, Scotland |
| BUTLER, Robert William ACTIVE | Director | 16 Jul 2026 | | United Kingdom | January 1983 | 79, New Oxford Street, London, WC1A 1DG, United Kingdom |
| SPEAR, Paul Andrew ACTIVE | Director | 25 Aug 2020 | | England | June 1974 | 79, New Oxford Street, London, WC1A 1DG, United Kingdom |
| EDINBURGH PHARMACEUTICAL INDUSTRIES LIMITED ACTIVE | Director | 08 Jul 2024 | | | | Shewalton Road, Irvine, Ayrshire, KA11 5AP, United Kingdom |
| BICKNELL, Simon Michael RESIGNED | Secretary | 24 Nov 1994 | 18 Dec 1998 | | | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| CHRISTIAN, Christopher Lindsay RESIGNED | Secretary | | 24 Nov 1994 | | | 16 Devoncroft Gardens, Twickenham, Middlesex, TW1 3PB |
| STEPHENS, Richard James RESIGNED | Secretary | 21 Jul 2003 | 05 Mar 2007 | | | 980 Great West Road, Brentford, Middlesex, TW8 9GS |
| ADCOCK, Matthew Creighton RESIGNED | Director | 09 Apr 2013 | 01 Jul 2014 | England | April 1968 | 980, Great West Road, Brentford, Middlesex, TW8 9GS, England |
| BAKER, Christopher, Dr RESIGNED | Director | | 23 May 1993 | | December 1946 | Farmside 15 Long Grove, Seer Green, Beaconsfield, Buckinghamshire, HP9 2YN |
| BAXTER, Jeffrey Royston RESIGNED | Director | 02 May 1997 | 19 Dec 2001 | | July 1961 | 21 Manor Road, Ashford, Middlesex, TW15 2SL |
| BELL, Alan Menzies, Dr RESIGNED | Director | 01 Jan 1999 | 30 Dec 2001 | | September 1947 | Little Chesters, Main Drive, Gerrards Cross, Buckinghamshire, SL9 7PR |
| BLAKER, Graham Joseph, Dr RESIGNED | Director | | 01 Jun 1998 | England | August 1946 | Callingham House, 17 Ledborough Lane, Beaconsfield, Buckinghamshire, HP9 2PZ |
| BRUCE, Paul Lawrence RESIGNED | Director | 15 Sep 1997 | 18 Dec 1998 | | April 1955 | 34 Berkeley Square, London, W1X 6JT |
| BURNS, Alan George RESIGNED | Director | 05 May 2017 | 08 May 2019 | England | March 1975 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| CALDWELL, Joseph, Dr RESIGNED | Director | 20 Jan 1997 | 19 Aug 1998 | | January 1949 | Wyburn, 35 Kingsway, Gerrards Cross, Buckinghamshire, SL9 8NX |
| CALLIANO, Riccardo RESIGNED | Director | 21 Jul 2014 | 01 Oct 2017 | England | November 1972 | 980, Great West Road, Brentford, Middlesex, TW8 9GS, England |
| CARDWELL, Ian RESIGNED | Director | 23 Feb 2010 | 31 Dec 2011 | England | February 1963 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| CARTMELL, Simon Christopher RESIGNED | Director | 01 Jun 1993 | 01 Jan 1995 | England | January 1960 | 55 Acacia Road, Hampton, Middlesex, TW12 3DP |
| CHALLONER, Stanley Clive RESIGNED | Director | | 31 Jan 1994 | | January 1937 | Tree Cottage Bisham Road, Marlow, Buckinghamshire, SL7 1RL |
| ELLIOT, John Bell RESIGNED | Director | 14 May 2003 | 31 Dec 2006 | England | December 1951 | Berrymoss, Roffey Park, Horsham, West Sussex, RH12 4TD |
| HEPBURN, Stuart RESIGNED | Director | 04 Jan 2012 | 01 May 2016 | England | March 1972 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| HIGHAM, John Stanley RESIGNED | Director | | 03 Mar 1993 | | April 1942 | 21 Knottocks Drive, Beaconsfield, Buckinghamshire, HP9 2AH |
| HUMER, Franz Bernhard RESIGNED | Director | | 12 May 1993 | United Kingdom | July 1946 | 34 Campden Hill Court, Campden Hill Road, London, W8 7HS |
| JONES, David John RESIGNED | Director | 14 May 2003 | 07 May 2009 | | September 1947 | 980 Great West Road, Brentford, Middlesex, TW8 9GS |
| JONGEN, Freek RESIGNED | Director | 01 Oct 2017 | 25 Aug 2020 | United Kingdom | June 1980 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| JORDAN, Stephen RESIGNED | Director | 14 May 2003 | 23 Feb 2010 | United Kingdom | September 1953 | 980 Great West Road, Brentford, Middlesex, TW8 9GS |
| KELLER, Philip Henry RESIGNED | Director | 02 Aug 1997 | 12 Sep 1997 | England | December 1965 | 30 Meadowbank, Ainger Road, London, NW3 3AY |
| KENNEDY, James RESIGNED | Director | | 01 Feb 1993 | | November 1935 | Abbey Lodge 1 Westminster Close, High Wycombe, Buckinghamshire, HP11 1QR |
| LATCHFORD, Richard John RESIGNED | Director | 07 May 2021 | 19 Feb 2022 | England | August 1979 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| MCCUBBIN, Ian RESIGNED | Director | 05 Jul 2013 | 31 Mar 2017 | England | December 1956 | 980, Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom |
| MCINNES, Ian Alexander Thomson, Dr RESIGNED | Director | 03 Mar 1993 | 11 Oct 1996 | | March 1952 | 241 Main Road, Walters Ash, High Wycombe, Buckinghamshire, HP14 4TH |
| MILLER, Timothy John RESIGNED | Director | 01 Jan 1999 | 02 Jun 2000 | | October 1957 | 7 Oakdene, Beaconsfield, Buckinghamshire, HP9 2BZ |
| MULLINS, Sheila RESIGNED | Director | 22 Mar 2019 | 25 Aug 2020 | England | October 1965 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| O'HARA, Neil RESIGNED | Director | 23 Feb 2010 | 09 Apr 2013 | England | March 1973 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| OLIINYK, Dmytro RESIGNED | Director | 19 Feb 2022 | 16 Jul 2026 | England | June 1983 | 79, New Oxford Street, London, WC1A 1DG, United Kingdom |
| PADFIELD, John Malcolm, Doctor RESIGNED | Director | | 31 Mar 1994 | | January 1947 | The Coppice 4 Long Road, Cambridge, Cambridgeshire, CB2 2PS |
| PARKES, Philip Edward RESIGNED | Director | | 31 Aug 1993 | United Kingdom | July 1943 | 15 Buckingham Road, Hampton, Middlesex, TW12 3JA |
| PATTESON-BRENT, Erika RESIGNED | Director | 25 Aug 2020 | 29 Sep 2021 | England | September 1977 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| POWER, Joseph James RESIGNED | Director | 22 Mar 2019 | 31 Dec 2020 | Ireland | February 1964 | 980, Great West Road, Brentford, Middlesex, TW8 9GS |
| PRICE, Barry John, Dr RESIGNED | Director | 01 Jan 1995 | 31 Dec 1995 | England | July 1943 | Warren Farmhouse Warren Cottages, Warren Lane Cottered, Buntingford, Hertfordshire, SG9 9QG |
| PULMAN, David, Doctor RESIGNED | Director | 24 Jan 1997 | 14 May 2003 | | November 1953 | 104 Lower Road, Chalfont St. Peter, Gerrards Cross, SL9 8LB |
| READSHAW, Ashley RESIGNED | Director | 01 Sep 1993 | 17 Jan 1997 | | May 1958 | Holbeche 66 Braywick Road, Maidenhead, Berkshire, SL6 1DE |
| REYNAUD, Jean Paul RESIGNED | Director | 14 May 2003 | 12 Jul 2013 | United Kingdom | February 1954 | 980 Great West Road, Brentford, Middlesex, TW8 9GS |
| SIMARD, Regis Jean-Pierre RESIGNED | Director | 18 May 2016 | 02 May 2019 | United Kingdom | August 1965 | 980, Great West Road, Brentford, TW8 9GS, United Kingdom |
| TYSON, Timothy Cyril RESIGNED | Director | 01 Jun 1998 | 01 Dec 2002 | | April 1952 | 10 Stone Hall Gardens, London, W8 5UU |
| VITTY, Graham John RESIGNED | Director | | 03 Nov 1994 | | October 1947 | 164 Greys Road, Henley On Thames, Oxfordshire, RG9 1QR |
| WAIGHTS, Christopher Charles Bolingbroke RESIGNED | Director | 13 Apr 1994 | 01 Jan 1995 | | September 1951 | Hilltop Lodge, Dalton, Richmond, North Yorkshire, DL11 7HX |
| GLAXO GROUP LIMITED RESIGNED | Director | 11 Sep 2002 | 21 Jul 2003 | | | Glaxo Welcome House, Berkeley Avenue, Greenford, Middlesex, UB6 0NN |