| ABDURAHMAN, Aklen Ali, Dr ACTIVE | Director | 24 Apr 2026 | | England | August 1983 | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| CRIPPS, Joseph John ACTIVE | Director | 01 Feb 2016 | | England | June 1975 | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| DENNIS, Charles James ACTIVE | Director | 26 Apr 2026 | | United Kingdom | February 1994 | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| TURLEY, Andrew ACTIVE | Director | 01 Jul 2011 | | England | August 1953 | Flat 3, 35 Mortlake Road, Mortlake Road, Richmond, Surrey, TW9 3JQ, United Kingdom |
| WAUBEN, Margaretha Hubertina ACTIVE | Director | 26 Apr 2026 | | England | October 1994 | 35, Mortlake Road, Richmond, TW9 3JQ, England |
| BURDETT, Mark Richard RESIGNED | Secretary | 24 May 2013 | 08 May 2017 | | | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| CLARKSON, James Jonathan, Dr RESIGNED | Secretary | 01 Jul 2008 | 16 Oct 2012 | | | Flat 5 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| HADRILL, Catherine Louise RESIGNED | Secretary | 11 Oct 2012 | 24 May 2013 | | | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| HELSTON, John Clifford Sherwood RESIGNED | Secretary | | 11 Oct 1992 | | | Pembrook, Chetnole, Sherborne, Dorset, DT9 6PE |
| MACKINDER, Joanna Lesley RESIGNED | Secretary | 31 Aug 2002 | 02 Jul 2008 | | | Haven, Salisbury Road, Marlborough, Richmond, Wiltshire, SN8 4AE |
| MACKINDER, Joanna Lesley RESIGNED | Secretary | 06 Apr 1995 | 24 Jan 2001 | | | Flat 3 35 Mortlake Road, Kew, Richmond, TW9 3JQ |
| MARTIN, Caroline RESIGNED | Secretary | 24 Jan 2001 | 31 Aug 2002 | | | Flat 5 35 Mortlake Road, Richmond, Surrey, TW9 3JQ |
| PICKERING, Michael Edward RESIGNED | Secretary | 25 Nov 1994 | 06 Apr 1995 | | | 26 Cardinals Walk, Hampton, Middlesex, TW12 2TS |
| ROFF, Carl RESIGNED | Secretary | 11 Oct 1992 | 15 Jun 1994 | | | Flat 2 Kenmore Lodge, 35 Mortlace Road Kew, Richmond-Upon-Thames, Surrey, TW9 3JQ |
| BURDETT, Mark Richard RESIGNED | Director | 01 May 2013 | 01 Dec 2022 | United Kingdom | August 1983 | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| CLARKSON, James Jonathan, Dr RESIGNED | Director | 01 Jan 2004 | 11 Oct 2012 | United Kingdom | May 1976 | Flat 5 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| CREESER, Elaine Ruth RESIGNED | Director | 28 Aug 1998 | 09 Oct 1998 | | February 1962 | Flat 4 35 Mortlake Road, Richmond, Surrey, TW9 3JQ |
| CUMING, Kay Caroline RESIGNED | Director | | 11 Oct 1992 | | August 1955 | 35 Mortlake Road, Richmond, Surrey, TW9 3JQ |
| CUMING, Madeleine RESIGNED | Director | 24 Nov 1994 | 01 Mar 1995 | | January 1962 | Flat 5, 35 Mortlake Road, Kew Rchmond Upon Thames, Surrey, TW9 3JQ |
| DE ANDRES FERNANDEZ, Javier RESIGNED | Director | 20 Apr 2009 | 01 Jan 2012 | United Kingdom | May 1976 | Flat 2, 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ, United Kingdom |
| GARSTANG, Caroline Emma Jane RESIGNED | Director | 24 Jan 2001 | 12 Dec 2006 | | April 1969 | Flat 2 Mortlake Road, Richmond, Surrey, TW9 3JQ |
| HADRILL, Catherine Louise RESIGNED | Director | 21 Feb 2012 | 01 Jul 2015 | England | October 1983 | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| HELSTON, John Clifford Sherwood RESIGNED | Director | 24 Nov 1994 | 30 Oct 1997 | | May 1929 | Whitehayes, Stockland, Honiton, Devon, EX14 9DB |
| HELSTON, John Clifford Sherwood RESIGNED | Director | | 11 Oct 1992 | | April 1931 | Pembrook, Chetnole, Sherborne, Dorset, DT9 6PE |
| JONES, Emma RESIGNED | Director | 24 Nov 1994 | 07 Apr 1997 | | December 1967 | Flat 4, 35 Mortlake Road, Kew Richmond Upon Thames, Surrey, TW9 3JQ |
| JONES, Emma RESIGNED | Director | 11 Oct 1992 | 10 Oct 1993 | | December 1967 | Flat 4, 35 Mortlake Road, Kew Richmond Upon Thames, Surrey, TW9 3JQ |
| MACKINDER, Joanna Lesley RESIGNED | Director | 24 Jan 2001 | 01 Jan 2010 | | September 1957 | Haven, Salisbury Road, Marlborough, Richmond, Wiltshire, SN8 4AE |
| MACKINDER, Joanna Lesley RESIGNED | Director | 24 Nov 1994 | 24 Jan 2001 | | September 1957 | Flat 3 35 Mortlake Road, Kew, Richmond, TW9 3JQ |
| MARTIN, Caroline RESIGNED | Director | 24 Aug 1998 | 31 Aug 2002 | | August 1969 | Flat 5 35 Mortlake Road, Richmond, Surrey, TW9 3JQ |
| PEPE, Massimo RESIGNED | Director | 24 Jan 2001 | 18 Dec 2015 | United Kingdom | November 1958 | 48 Temple Road, Kew, Richmond, Surrey, TW9 2ED |
| ROFF, Carl RESIGNED | Director | 11 Oct 1992 | 15 Jun 1994 | | October 1964 | Flat 2 Kenmore Lodge, 35 Mortlace Road Kew, Richmond-Upon-Thames, Surrey, TW9 3JQ |
| TOLLEY, Catherine RESIGNED | Director | 24 Nov 1994 | 23 Apr 1996 | | September 1966 | Flat 2, 35 Mortlake Road, Kew Richmond Upon Thames, Surrey, TW9 3JQ |
| TOWERS, Robin Digby RESIGNED | Director | 24 Jan 2001 | 12 Dec 2006 | | March 1945 | 17a Courtlands Avenue, Richmond, Surrey, TW9 4EP |
| WALL, Catherine Margaret RESIGNED | Director | 29 Aug 1998 | 27 Aug 2000 | | September 1966 | Pinks Hill Farmhouse, Grafham, Bramley, Guildford, Surrey, GU5 0LH |
| WALLINGTON, Nicola RESIGNED | Director | 11 Oct 1993 | 15 Jun 1994 | | August 1967 | Flat 2 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| WILLIAMS, Nicholas RESIGNED | Director | 18 Oct 2015 | 09 Apr 2026 | England | June 1970 | 35 Mortlake Road, Kew, Richmond, Surrey, TW9 3JQ |
| WILLIAMS, Ross Tudor RESIGNED | Director | 24 Aug 1998 | 14 Nov 2000 | | May 1952 | Flat 1 Kenmore Lodge, 35 Mortlake Road, Richmond, Surrey, TW9 3JQ |