| BLACKBURN, Simon Jim ACTIVE | Secretary | 05 Aug 2021 | | | | 1, Drummond Gate, Pimlico, London, SW1V 2QQ, United Kingdom |
| AVERY, Ross Michael ACTIVE | Director | 30 Sep 2025 | | England | September 1977 | 1, Drummond Gate, Pimlico, London, SW1V 2QQ, United Kingdom |
| MOUNSEY, Andrew John ACTIVE | Director | 23 Apr 2021 | | United Kingdom | August 1978 | 1, Drummond Gate, Pimlico, London, SW1V 2QQ, United Kingdom |
| BUCHANAN, Alan RESIGNED | Secretary | 31 Jul 2014 | 31 Jan 2015 | | | Partnership House, Carlisle Place, London, SW1P 1BX, United Kingdom |
| CASELY-HAYFORD, Margaret Henrietta Augusta RESIGNED | Secretary | 28 Apr 2006 | 31 Jul 2014 | | | 171 Victoria Street, London, SW1E 5NN |
| HUBBER, Keith Michael RESIGNED | Secretary | 01 Feb 2015 | 31 Jan 2018 | | | 171, Victoria Street, London, SW1E 5NN, United Kingdom |
| NEVILLE, Terence Frank RESIGNED | Secretary | 10 May 2001 | 27 Apr 2006 | | | 171 Victoria Street, London, SW1E 5NN |
| PRITCHARD, Brian James RESIGNED | Secretary | | 09 May 2001 | | | The Chase, Garden Close Lane, Wash Common, Newbury, Berkshire, RG14 6PP |
| SIMPSON, Peter RESIGNED | Secretary | 31 Jan 2018 | 07 Jun 2021 | | | 171, Victoria Street, London, SW1E 5NN, United Kingdom |
| CASSONI, Marisa Luisa RESIGNED | Director | 20 Aug 2009 | 31 Aug 2012 | United Kingdom | December 1951 | 171, Victoria Street, London, SW1E 5NN, United Kingdom |
| CLIFT, Paul Edwin RESIGNED | Director | 03 Nov 2006 | 29 May 2009 | | May 1952 | 171 Victoria Street, London, SW1E 5NN |
| HAMPSON, Stuart RESIGNED | Director | 01 Feb 1993 | 26 Mar 2007 | | January 1947 | 171 Victoria Street, London, SW1E 5NN |
| LEWIS, John Patrick RESIGNED | Director | 12 Feb 2016 | 31 Dec 2020 | England | July 1965 | 171 Victoria Street, London, SW1E 5NN |
| LEWIS, Peter Tyndale RESIGNED | Director | | 01 Feb 1993 | | September 1929 | Flat No 1-34 Victoria Road, London, W8 5RA |
| MARCH, Richard Murray RESIGNED | Director | | 07 May 1999 | | August 1939 | Pinewood Cottage, Pinewood Gardens, Bagshot, Surrey, GU19 5EP |
| MAYFIELD, Richard RESIGNED | Director | 20 Aug 2009 | 03 Jul 2012 | United Kingdom | September 1968 | 171, Victoria Street, London, SW1E 5NN, United Kingdom |
| MELLY, William Heywood RESIGNED | Director | | 12 Jul 1995 | England | May 1929 | Ruffits Headley Road, Grayshott, Hindhead, Surrey, GU26 6DL |
| MICHEL, Berangere Andree Mireille RESIGNED | Director | 01 Jan 2021 | 06 Sep 2024 | United Kingdom | November 1973 | 1, Drummond Gate, Pimlico, London, SW1V 2QQ, United Kingdom |
| MILLER, Michael John Kingsley RESIGNED | Director | 12 Jul 1995 | 15 Jun 2000 | | August 1935 | Whitebeam Cottage The Nook, Stoney Middleton, Hope Valley, Derbyshire, S32 4TU |
| MILNER, Michael Mark RESIGNED | Director | 07 May 1999 | 31 Jan 2006 | | September 1948 | 171 Victoria Street, London, SW1E 5NN |
| PATEL, Sanjay RESIGNED | Director | 03 Jul 2012 | 08 Mar 2013 | England | December 1964 | 171 Victoria Street, London, SW1E 5NN |
| READE, Tina Sandra RESIGNED | Director | 08 Mar 2013 | 12 Feb 2016 | England | January 1956 | 171 Victoria Street, London, SW1E 5NN |
| READE, Tina Sandra RESIGNED | Director | 30 Mar 2001 | 20 Aug 2009 | England | January 1956 | 171 Victoria Street, London, SW1E 5NN |
| REDMOND, Charles William Forbes RESIGNED | Director | 15 Jun 2000 | 30 Jul 2009 | | July 1941 | 12 Alma Road, Clifton, Bristol, Avon, BS8 2BY |
| RUDDY, Jacqueline RESIGNED | Director | 12 Feb 2016 | 23 Apr 2021 | United Kingdom | November 1971 | 171, Victoria Street, London, SW1E 5NN, United Kingdom |
| WALDEMAR BROWN, Nicholas RESIGNED | Director | | 16 Aug 1996 | | March 1939 | 40 Park Road, Chiswick, London, W4 3HH |
| WEIR, Helen Alison RESIGNED | Director | 01 Sep 2012 | 01 Dec 2014 | United Kingdom | August 1962 | 171 Victoria Street, London, SW1E 5NN |
| WILSON, David Mallon RESIGNED | Director | | 30 Mar 2001 | | March 1941 | Magnolia Cottage 11 Hillside Road, East Ewell, Epsom, Surrey, KT17 3EH |
| WOODHOUSE, Loraine RESIGNED | Director | 01 Dec 2014 | 12 Feb 2016 | England | December 1968 | 171, Victoria Street, London, SW1E 5NN, England |