| SIMMONS, Philip Geoffrey ACTIVE | Secretary | 10 May 2022 | | | | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| OSTBERG, Julia, Dr ACTIVE | Director | 23 Aug 2018 | | England | November 1971 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| SIMMONS, Philip Geoffrey ACTIVE | Director | 12 Sep 2025 | | England | August 1960 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| GRIFFIN, Paul John RESIGNED | Secretary | 18 Apr 2018 | 03 Aug 2018 | | | 2 Hadley Heights, Hadley Road, Barnet, EN5 5QH, England |
| JEFFERY, Caroline Sarah RESIGNED | Secretary | 27 Jun 2001 | 28 Sep 2001 | | | 24 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| NELSON, Catherine RESIGNED | Secretary | 30 Oct 2000 | 27 Jun 2001 | | | 1 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| OBRIEN, Clive Peter RESIGNED | Secretary | | 30 Oct 2000 | | | 2 Hadley Heights, Hadley Road, Barnet, Herts, EN5 5QH |
| RENROISE, Barbara RESIGNED | Secretary | | 17 Aug 1992 | | | 2 Hadley Heights, Barnet, Hertfordshire, EN5 5QH |
| SIMMONS, Philip Geoffrey RESIGNED | Secretary | 28 Sep 2001 | 18 Apr 2018 | | | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| ANDREANOFF, Glynis RESIGNED | Director | 06 May 2016 | 18 Apr 2018 | England | May 1946 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| BERGMAN, James Edward RESIGNED | Director | 26 Sep 2000 | 27 Dec 2000 | | November 1976 | 12a Hadley Heights, Hadley Road, Hadley Wood, Hertfordshire, EN5 5QH |
| BRADFORD, Phyllis Lillian RESIGNED | Director | | 20 Nov 1993 | | May 1913 | 12 Hadley Heights, Barnet, Hertfordshire, EN5 5QH |
| BRIDGWATER, Alan Styart RESIGNED | Director | | 26 Jun 1993 | | June 1907 | 3 Hadley Heights, Hadley Road, Barnet, Herts., EN5 5QH |
| BROUGH, Betty Mary RESIGNED | Director | 10 Apr 2014 | 11 May 2022 | England | February 1936 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| BROUGH, Brian RESIGNED | Director | 30 Jul 2007 | 02 Feb 2010 | United Kingdom | September 1934 | 26 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| CALLAGHAN, Kevin John RESIGNED | Director | 17 Nov 2002 | 30 Oct 2008 | | October 1961 | 21 Hadley Heights, 132 Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| CHAMBERLAIN, Joselyn Olivia, Dr RESIGNED | Director | 11 Oct 2019 | 11 May 2022 | England | October 1932 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| CHAMBERLAIN, Joselyn Olivia, Dr RESIGNED | Director | 10 Apr 2014 | 10 Mar 2018 | England | October 1932 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| CLEMENTS, Michael RESIGNED | Director | 02 Oct 1996 | 19 Oct 1999 | | February 1947 | Hadley Green Cottage, 185 High Street, Barnet, Hertfordshire, EN5 5SU |
| DALY, Shirley Ann RESIGNED | Director | 30 Jul 2007 | 10 Apr 2014 | United Kingdom | May 1936 | 3 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| DAVIS, Anthony Clifford RESIGNED | Director | | 26 Aug 1992 | | December 1925 | 19-20 Hyde Park Place, London, W2 2LP |
| DIREKOGLOU, Djan RESIGNED | Director | 18 Apr 2018 | 03 Aug 2018 | England | March 1960 | 19, Newmans Way, Barnet, EN4 0LP, England |
| HOBBS, Susan Jayne RESIGNED | Director | 18 Apr 2018 | 03 Aug 2018 | England | September 1960 | 21 Hadley Heights, Hadley Road, Barnet, EN5 5QH, England |
| LLOYD, Michael Patrick RESIGNED | Director | 15 Jul 2001 | 14 Dec 2005 | | January 1943 | 26 Hadley Heights, Hadley Road Barnet, London, EN5 5QH |
| MILLINGS, Anthony RESIGNED | Director | 19 Oct 1999 | 17 Nov 2002 | | July 1967 | 24 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| NAIDOO, Vethasuruben Krishnaswamy RESIGNED | Director | 18 Apr 2018 | 22 Aug 2018 | England | June 1956 | 57, Darlands Drive, Barnet, EN5 2DE, England |
| NAIDOO, Vethasuruben Krishnaswamy RESIGNED | Director | 15 Jul 2001 | 30 Jul 2007 | England | June 1956 | 57 Darlands Drive, Barnet, EN5 2DE |
| OBRART, Tara Rochelle RESIGNED | Director | 02 Oct 1996 | 22 Jun 1999 | | October 1968 | 4 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| OSTBERG, Julia, Dr RESIGNED | Director | 14 Mar 2001 | 18 Apr 2018 | United Kingdom | December 1971 | Flat 4 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| RANDALL, Brian William RESIGNED | Director | 20 Nov 1993 | 15 Mar 1999 | | February 1944 | 23 Hadley Heights, Hadley Road, New Barnet, Hertfordshire, EN5 5QH |
| SANDS, Neil RESIGNED | Director | 11 May 2022 | 10 Nov 2025 | England | July 1943 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| SANDS, Neil RESIGNED | Director | 30 Jul 2007 | 09 Aug 2011 | England | July 1943 | 1 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| SANDS, Susan RESIGNED | Director | 23 Aug 2018 | 30 Aug 2019 | England | December 1945 | Sadlers, 175 High Street, Barnet, Herts, EN5 5SU, England |
| SANDS, Susan RESIGNED | Director | 18 Apr 2018 | 11 Jul 2018 | England | December 1945 | 1 Hadley Heights, Hadley Common, Barnet, EN5 5QE, England |
| TAINSH, George Hart RESIGNED | Director | | 20 Nov 1993 | | January 1947 | 4 Hadley Heights, Barnet, Hertfordshire, EN5 5QH |
| TUGWOOD, Daphne Caroline Alexandra RESIGNED | Director | 17 Nov 2002 | 10 Feb 2006 | | December 1930 | 11 Hadley Heights, 132 Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| TUGWOOD, Daphne Caroline Alexandra RESIGNED | Director | | 15 Jul 2001 | | December 1930 | 11 Hadley Heights, 132 Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| WATSON, Ailsa Durie RESIGNED | Director | 14 Dec 2005 | 30 Jul 2007 | | June 1928 | 18 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| WATSON, Ailsa Durie RESIGNED | Director | 19 Oct 1999 | 26 Sep 2000 | | June 1928 | 18 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| WATSON, Lyal Clifton Albert, Dr RESIGNED | Director | 12 Jun 2009 | 02 Nov 2013 | United Kingdom | March 1927 | 18 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| WATSON, Lyal Clifton Albert, Dr RESIGNED | Director | 26 Sep 2000 | 17 Nov 2002 | United Kingdom | March 1927 | 18 Hadley Heights, Hadley Road, Barnet, Hertfordshire, EN5 5QH |
| WEST, Maria Luise RESIGNED | Director | | 15 Jul 2001 | | December 1925 | 9 Hadley Heights, Barnet, Hertfordshire, EN5 5QH |