| 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 |
| BUCHAN, Jennifer Susan RESIGNED | Secretary | | 25 Jan 2002 | | | Highdown, Greenway Road, Blockley, Gloucestershire, GL56 9BQ |
| GILLESPIE, Fiona Margaret RESIGNED | Secretary | 02 Apr 2007 | 14 Jan 2022 | | | 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| 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 | 25 Jan 2002 | 02 Apr 2007 | | | 2 Salmons Lane, Middleton Cheney, Banbury, Oxon, OX17 2NF |
| 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 |
| EDWARDS, John Ralph RESIGNED | Director | 04 Aug 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 |
| 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 |
| HARDING, David Alan RESIGNED | Director | | 31 Oct 1993 | England | July 1947 | Cedar House, 22 Plymouth Road, Barnt Green, Birmingham, B45 8JA |
| LILLYCROP, David Peter RESIGNED | Director | | 04 Aug 2000 | | June 1956 | Canal Cottage, Halton Village, Buckinghamshire, HP22 5NS |
| 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 |
| MOORE, Nicholas RESIGNED | Director | 29 Oct 1993 | 27 Apr 2001 | United Kingdom | January 1951 | The Balfour Chatterpie Lane, Combe, Witney, Oxfordshire, OX29 8PG |
| NORRIS, Guy Mervyn RESIGNED | Director | 04 Aug 2000 | 31 Jul 2007 | | May 1946 | The Dower House, Church Road Snitterfield, Stratford Upon Avon, CV37 0LF |
| 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 | 02 Apr 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 |
| RALPH, Bruce Charles RESIGNED | Director | | 31 Jan 1993 | | August 1939 | Leckhampton Grange, Leckhampton Hill, Cheltenham, Gloucestershire, GL53 9QH |
| SAUNDERS, Denis RESIGNED | Director | | 04 Aug 2000 | | April 1934 | Lime Tree House 3 Tapster Court, Bushwood Lane, Lapworth, Warwickshire, B94 5PJ |