| GLOVER, Lucy ACTIVE | Secretary | 21 Jul 2025 | | | | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| FURLONGER, Marc ACTIVE | Director | 19 Apr 2018 | | England | September 1972 | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| GLOVER, Lucy ACTIVE | Director | 14 Jan 2022 | | England | June 1982 | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| BLAKEMORE, Christopher Martin RESIGNED | Secretary | 18 Jun 1999 | 22 Feb 2000 | | | 5 Cross Barn, English Bicknor, Coleford, Gloucestershire, GL16 7PP |
| GILLESPIE, Fiona Margaret RESIGNED | Secretary | 31 Jul 2007 | 14 Jan 2022 | | | 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| GRIFFITHS, John Richard RESIGNED | Secretary | | 19 Jun 1998 | | | Glenderry, Wellhouse Road Beech, Alton, Hampshire, GU34 4AG |
| JONES, Bryn Parry RESIGNED | Secretary | 22 Feb 2000 | 27 Mar 2001 | | | 12 Saxel Close, Aston, Bampton, Oxfordshire, OX18 2EB |
| MACANDREWS, Laura Struan RESIGNED | Secretary | 14 Jan 2022 | 01 Mar 2024 | | | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| MALONEY, Kiera Nicole RESIGNED | Secretary | 01 Mar 2024 | 21 Jul 2025 | | | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| PENN, David Alfred RESIGNED | Secretary | 27 Mar 2001 | 31 Jul 2007 | | | 2 Salmons Lane, Middleton Cheney, Banbury, Oxon, OX17 2NF |
| PLASKETT, John Graham RESIGNED | Secretary | 01 Jul 1996 | 18 Jun 1999 | | | 30 Dutton Way, Iver, Buckinghamshire, SL0 9NY |
| BROAD, Donald Andrew Robertson RESIGNED | Director | 07 Mar 2011 | 30 Sep 2013 | United Kingdom | May 1951 | 2nd Floor, Cardinal Place, 80 Victoria Street, London, SW1E 5JL, England |
| BURDETT, Neil Robert RESIGNED | Director | 28 Nov 2008 | 05 Apr 2017 | England | June 1955 | 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| CHATAING, Jean Pierre RESIGNED | Director | | 19 May 2000 | | July 1947 | 100 Rue De 22 Septembre, 92400 Courbevoie, FOREIGN, France |
| EDWARDS, John Ralph RESIGNED | Director | 30 May 2000 | 10 May 2002 | United Kingdom | January 1950 | Green Hedges, 25 Saint Johns Street, Crowthorne, Berkshire, RG45 7NJ |
| FOX, Martin James RESIGNED | Director | 17 Dec 2008 | 07 Mar 2011 | United Kingdom | April 1965 | 10a, St Catherines Road, Ruislip, Middlesex, HA4 7RU, England |
| GAMBRIEL, Peter Alfred RESIGNED | Director | 01 Jun 1992 | 31 Oct 1994 | | October 1939 | 32 Drovers Way, Bracknell, Berkshire, RG12 3EZ |
| GILLESPIE, Fiona Margaret RESIGNED | Director | 21 Apr 2017 | 14 Jan 2022 | England | August 1969 | C/O Smiths Group Plc, 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| GRIFFITHS, John Richard RESIGNED | Director | 16 Jun 1980 | 30 Jun 1996 | | June 1934 | Glenderry, Wellhouse Road Beech, Alton, Hampshire, GU34 4AG |
| HASLEHURST, Peter Joseph Kinder RESIGNED | Director | | 31 Dec 1998 | England | March 1941 | Old Crowholt Farm, Cowbrook Lane Gawsworth, Macclesfield, Cheshire, SK11 0JH |
| HOBBS, Jeffrey Jacques RESIGNED | Director | | 23 Jul 1998 | | March 1943 | 1 Cedar Copse, Bromley, Kent, BR1 2NY |
| JONES, Bryn Parry RESIGNED | Director | 20 May 2000 | 27 Mar 2001 | | | 12 Saxel Close, Aston, Bampton, Oxfordshire, OX18 2EB |
| LANE, Keith Peter RESIGNED | Director | 01 Jun 1992 | 19 May 2000 | United Kingdom | August 1951 | The Firs, Ponder Approach, Holmer Green, Buckinghamshire, HP15 6RQ |
| LLOYD, Christopher James RESIGNED | Director | 01 Jun 1992 | 24 Mar 1998 | | June 1952 | 62 Hilmanton, Lower Earley, Berkshire, RG6 4HN |
| MCKEOWN, Matthew Robin RESIGNED | Director | 21 Nov 2017 | 19 Apr 2018 | England | January 1980 | C/O Smiths Group Plc, 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| NORRIS, Guy Mervyn RESIGNED | Director | 30 May 2000 | 31 Jul 2007 | | May 1946 | The Dower House, Church Road Snitterfield, Stratford Upon Avon, CV37 0LF |
| NOWELL, Michael Edward RESIGNED | Director | 01 Jun 1992 | 19 May 2000 | | April 1950 | Horse Mill House, Dalqueich Kinross, Perthshire, KY13 7RG |
| O'BRIEN, Susan Lynn RESIGNED | Director | 31 Jul 2007 | 31 Jul 2008 | | April 1968 | 180 Longfield Lane, Cheshunt, Waltham Cross, Hertfordshire, EN7 6AQ |
| PENN, David Alfred RESIGNED | Director | 31 Jul 2007 | 28 Nov 2008 | England | February 1958 | 2 Salmons Lane, Middleton Cheney, Banbury, Oxon, OX17 2NF |
| RALPH, Alexandra RESIGNED | Director | 26 Nov 2013 | 21 Nov 2017 | England | July 1974 | 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| SOULIE, Patrick Alexandre Louis RESIGNED | Director | | 19 May 2000 | | November 1947 | 8 Les Cottages, Rue De Bretagne 95330, Domont, FOREIGN, France |
| STUART, Andrew Harnwell RESIGNED | Director | 01 Jun 1992 | 30 Sep 1994 | | April 1958 | 4 Elizabeth Court, Hampton Road, Teddington, Middlesex, TW11 0JS |
| WISE, Antony John RESIGNED | Director | 01 Jul 1992 | 31 Jul 2000 | | August 1957 | 3 Worcestershire Lea, Warfield, Bracknell, Berkshire, RG42 3TQ |
| WORMSLEY, Bertram Howard RESIGNED | Director | | 03 Oct 1993 | | October 1930 | 69 Hervey Road, Blackheath, London, SE3 8BX |