| OXBORROW, Felice Rosalynde ACTIVE | Secretary | 01 Aug 2012 | | | | 29, Chelwood Gardens, Richmond, TW9 4JG, England |
| ATKINS, Sarah Anne ACTIVE | Director | 26 Jan 2022 | | England | July 1955 | 29, Chelwood Gardens, Richmond, TW9 4JG, England |
| DUNROSSIL, Diana Mary, Viscountess ACTIVE | Director | 28 Mar 2012 | | United Kingdom | May 1942 | 29, Chelwood Gardens, Richmond, TW9 4JG, England |
| ENTHOVEN, Harriet Mary ACTIVE | Director | 20 Jul 2010 | | United Kingdom | July 1947 | 29, Chelwood Gardens, Richmond, TW9 4JG, England |
| FERRIDAY, Richard ACTIVE | Director | 12 Nov 2019 | | England | October 1974 | 6 Boston Gardens, Boston Gardens, London, W7 2AN, England |
| MOHINDRA, Sonia ACTIVE | Director | 27 Jan 2022 | | United Kingdom | December 1985 | 20, West Park Road, Richmond, Surrey, TW9 4DA, United Kingdom |
| OXBORROW, Felice Rosalynde ACTIVE | Director | 01 Dec 2011 | | United Kingdom | December 1959 | 29, Chelwood Gardens, Richmond, TW9 4JG, England |
| ROCHE, Katrina Mary ACTIVE | Director | 23 Jul 2024 | | England | August 1957 | 29, Chelwood Gardens, Richmond, TW9 4JG, England |
| SMITH, Elizabeth Mary ACTIVE | Director | 10 Feb 2011 | | England | August 1949 | 29, Chelwood Gardens, Richmond, TW9 4JG, England |
| FORD, Rosemary Margaret RESIGNED | Secretary | 23 Nov 2006 | 31 Jul 2012 | | | 14 Atwood Avenue, Richmond, Surrey, TW9 4HG |
| DAVIS, Aaron Paul, Dr RESIGNED | Director | 15 Mar 2010 | 21 Nov 2017 | United Kingdom | November 1964 | 20, West Park Road, Richmond, Surrey, TW9 4DA, England |
| FORD, Rosemary Margaret RESIGNED | Director | 23 Nov 2006 | 01 Dec 2011 | England | September 1958 | 14 Atwood Avenue, Richmond, Surrey, TW9 4HG |
| GINGELL, Robert William RESIGNED | Director | 03 Nov 2020 | 13 Feb 2023 | England | February 1957 | 64 The Avenue, 64 The Avenue, Kew, Richmond, TW9 2AH, England |
| HOLLINGWORTH, Anthony Charles David RESIGNED | Director | 23 Nov 2006 | 04 Dec 2018 | England | July 1939 | 9 Pensford Avenue, Kew Gardens, Richmond, Surrey, TW9 4HR |
| HUTCHINGS, Diana Frances RESIGNED | Director | 23 Nov 2006 | 19 Dec 2012 | England | September 1946 | 93 North Road, Kew, Richmond, Surrey, TW9 4HQ |
| JENNINGS, Karyn RESIGNED | Director | 12 Nov 2019 | 01 Sep 2021 | United Kingdom | May 1959 | 15, Ormonde Road, London, SW14 7BE, England |
| KING, Stephen Rowland, Mr. RESIGNED | Director | 23 Nov 2006 | 04 Jan 2023 | England | June 1948 | 75 North Road, Kew, Richmond, Surrey, TW9 4HQ |
| MULLEY, Sonia Joy RESIGNED | Director | 23 Nov 2009 | 18 Apr 2012 | England | April 1963 | 20, West Park Road, Richmond, Surrey, TW9 4DA, England |
| O'BRIEN, John Francis RESIGNED | Director | 21 Nov 2017 | 03 Nov 2020 | England | May 1949 | 171, Mortlake Road, Richmond, TW9 4AW, England |
| POTULSKI-CHAN, Nicole RESIGNED | Director | 23 Nov 2006 | 02 Sep 2009 | England | May 1961 | 49 Atwood Avenue, Kew, Richmond, Surrey, TW9 4HF |
| VENIARD, Sarah RESIGNED | Director | 03 Nov 2020 | 05 Jul 2021 | England | October 1984 | 20 Victoria Gardens, 20 Victoria Gardens, Biggin Hill, Westerham, TN16 3DJ, England |
| VERWEY, Ewa RESIGNED | Director | 10 Feb 2011 | 01 Dec 2011 | United Kingdom | January 1948 | 20, West Park Road, Richmond, Surrey, TW9 4DA, England |
| WHITEHEAD, Graham, Mr. RESIGNED | Director | 23 Nov 2006 | 15 Mar 2010 | England | March 1966 | 5 Pensford Avenue, Kew, Richmond, Surrey, TW9 4HR |
| WOOLMER, Timothy Laurence, Dr RESIGNED | Director | 23 Nov 2006 | 26 Oct 2010 | England | July 1942 | 79 North Road, Kew, Richmond, Surrey, TW9 4HQ |