| GLOVER, Lucy ACTIVE | Secretary | 21 Jul 2025 | | | | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| FURLONGER, Marc ACTIVE | Director | 10 Apr 2026 | | England | September 1972 | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| GLOVER, Lucy ACTIVE | Director | 17 Mar 2023 | | England | June 1982 | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| ALLINSON, Bernadette RESIGNED | Secretary | 10 Feb 1995 | 09 Sep 1996 | | | Aughton Cottage, Monkey Island Lane Bray, Maidenhead, Berkshire, SL6 2GD |
| BLEWETT, Brian Frederick RESIGNED | Secretary | 01 Oct 2001 | 26 Feb 2004 | | | 13 Cedar Avenue, Blackwater, Camberley, Surrey, GU17 0JE |
| CONFAVREUX, Andre George RESIGNED | Secretary | | 10 Feb 1995 | | | 18 Water Tower Close, Uxbridge, Middlesex, UB8 1XS |
| GILLESPIE, Fiona Margaret RESIGNED | Secretary | 26 Feb 2004 | 14 Jan 2022 | | | 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| HUGHES, Mark Gordon RESIGNED | Secretary | 06 Jun 2000 | 01 Oct 2001 | | | 19 New Road, Westbourne, Emsworth, Hampshire, PO10 8UH |
| 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 | 12 Dec 2001 | 26 Feb 2004 | | | 2 Salmons Lane, Middleton Cheney, Banbury, Oxon, OX17 2NF |
| SHELTON, Mark Michael RESIGNED | Secretary | 12 Feb 1999 | 06 Jun 2000 | | | 37 Merrivale Square, Oxford, Oxfordshire, OX2 6QX |
| WALLIS, Leslie Charles RESIGNED | Secretary | 20 Nov 1995 | 12 Feb 1999 | | | 8 Burns Road, Crawley, West Sussex, RH10 3AU |
| WITHERS, Robin William RESIGNED | Secretary | | 17 Nov 1995 | | | Foxearth, Hardington Moor, Yeovil, Somerset, BA22 9NP |
| ABRAMS, Michael Donald RESIGNED | Director | 26 Nov 2013 | 01 Aug 2018 | England | May 1956 | 13th Floor, 54 Hagley Road, Edgbaston, Birmingham, B16 8PE, England |
| 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 |
| COWNLEY, John Francis RESIGNED | Director | 03 Jan 1995 | 30 Apr 1996 | England | May 1950 | Westfield Sandy Lane, Curridge, Thatcham, Berkshire, RG18 9DG |
| EDWARDS, John Ralph RESIGNED | Director | 29 Jun 1999 | 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 |
| HARVEY, Joshua Richard Goodwin RESIGNED | Director | 30 Jun 2017 | 21 Sep 2018 | England | August 1982 | 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| HASLEHURST, Peter Joseph Kinder RESIGNED | Director | 10 Sep 1996 | 29 Jun 1999 | England | March 1941 | Old Crowholt Farm, Cowbrook Lane Gawsworth, Macclesfield, Cheshire, SK11 0JH |
| HOBBS, Jeffrey Jacques RESIGNED | Director | 10 Sep 1996 | 23 Jul 1998 | | March 1943 | 1 Cedar Copse, Bromley, Kent, BR1 2NY |
| HOLMES, Terence John RESIGNED | Director | | 01 Jul 1993 | England | January 1942 | 80 Church Road, Formby, Merseyside, L37 3NG |
| KILCOYNE, Shaun Patrick RESIGNED | Director | 07 Sep 2018 | 17 Mar 2023 | England | June 1972 | C/O Smiths Group Plc, 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| LOVETT, Gordon Arnold RESIGNED | Director | | 01 Jul 1994 | | September 1939 | 34 Howards Wood Drive, Gerrards Cross, Buckinghamshire, SL9 7HW |
| MACKIE, Andrew William RESIGNED | Director | 04 Mar 1996 | 31 Jan 1997 | | December 1952 | 72 Bearwood Road, Barkham, Wokingham, Berkshire, RG41 4SY |
| MENZIES, Graham Reid RESIGNED | Director | | 09 Sep 1996 | | January 1948 | Harcombe House, 4 Lambridge Wood Road, Henley On Thames, Oxfordshire, RG9 3BS |
| MILLS, John Michael RESIGNED | Director | 18 Sep 2018 | 31 Jul 2021 | United Kingdom | January 1964 | C/O Smiths Group Plc, 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| MOORE, Brian Stanley RESIGNED | Director | 10 Sep 1996 | 29 Jun 1999 | | March 1946 | Mantine House, Silver Street Chacombe, Banbury, Oxfordshire, OX17 2JR |
| NORRIS, Guy Mervyn RESIGNED | Director | 29 Jun 1999 | 31 Jul 2007 | | May 1946 | The Dower House, Church Road Snitterfield, Stratford Upon Avon, CV37 0LF |
| NUTTALL, David Alan RESIGNED | Director | | 01 Jul 1993 | | November 1958 | The Wolery, Earlstone Common, Burghclere, Berkshire, RG20 9HN |
| 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 | 26 Feb 2004 | 28 Nov 2008 | England | February 1958 | 2 Salmons Lane, Middleton Cheney, Banbury, Oxon, OX17 2NF |
| ROWLANDS, Melanie Jane RESIGNED | Director | 24 Apr 2017 | 30 Jun 2017 | United Kingdom | August 1968 | C/O Smiths Group Plc, 4th Floor, 11-12 St James's Square, London, SW1Y 4LB, England |
| TRUSCOTT, Harold Richard Scott RESIGNED | Director | | 30 Jun 1996 | | March 1948 | Blakesley, Undershore Road, Lymington, Hampshire, SO41 5SB |
| WALLIS, Leslie Charles RESIGNED | Director | 20 Nov 1995 | 12 Feb 1999 | | September 1954 | 8 Burns Road, Crawley, West Sussex, RH10 3AU |
| WHYTE, Matthew John RESIGNED | Director | 01 Aug 2021 | 10 Apr 2026 | England | March 1974 | Level 10, 255 Blackfriars Road, London, SE1 9AX, England |
| WITHERS, Robin William RESIGNED | Director | | 17 Nov 1995 | | September 1941 | Foxearth, Hardington Moor, Yeovil, Somerset, BA22 9NP |
| WOOD, Malcolm Kenneth RESIGNED | Director | 10 May 1999 | 28 Feb 2001 | | June 1944 | Holmwood Horsell Vale, Woking, Surrey, GU21 4QU |
| YATES, Andrew Charles RESIGNED | Director | | 10 May 1999 | United Kingdom | May 1950 | Squirrel Bank Yatesbury Close, Farnham, Surrey, GU9 8UF |