| BROWN, Sarah ACTIVE | Secretary | 14 Aug 2015 | | | | 8, Highview, Anerley Grove, London, SE19 2HU, England |
| BROWN, Sarah ACTIVE | Director | 14 Aug 2015 | | England | April 1975 | 8, Highview, Anerley Grove, London, SE19 2HU, England |
| FERRARI FERNANDEZ, Maria Julia ACTIVE | Director | 15 Sep 2020 | | England | January 1983 | 8, Highview, Anerley Grove, London, SE19 2HU, England |
| GRUNDY, David James ACTIVE | Director | 19 Apr 2012 | | France | September 1972 | 8, Highview, Anerley Grove, London, SE19 2HU, England |
| LAMPTEY, Clover Bethany ACTIVE | Director | 15 Sep 2020 | | England | May 1986 | 8, Highview, Anerley Grove, London, SE19 2HU, England |
| BULTITUDE, Jessica Alice RESIGNED | Secretary | 14 Aug 2015 | 02 Jul 2019 | | | Analysis House, 51 Clarkegrove Road, Sheffield, S10 2NH |
| KING, Beverley Anne RESIGNED | Secretary | | 14 Aug 2015 | | | 6 Highview, London, SE19 2HU |
| BARKER, Simon Edward RESIGNED | Director | 05 Nov 2012 | 14 Sep 2020 | England | August 1978 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| BERNARD, Gail RESIGNED | Director | | 20 Mar 1995 | | May 1948 | 9 Highview, London, SE19 2HU |
| BULTITUDE, Jessica Alice Clare RESIGNED | Director | 05 Nov 2012 | 02 Jul 2019 | England | November 1981 | Analysis House, 51 Clarkegrove Road, Sheffield, S10 2NH |
| DAVIS, Oliver RESIGNED | Director | 11 Jun 2009 | 19 Apr 2012 | United Kingdom | July 1977 | 9, Highview, Anerley Grove, London, SE19 2HU |
| FRONTEDDU, Efisio RESIGNED | Director | 21 Mar 2000 | 18 Apr 2007 | | January 1970 | 13 Highview Anerley Road, London, SE19 2TA |
| GUNSON, Anthony James RESIGNED | Director | 27 Aug 2018 | 29 Sep 2022 | United Kingdom | March 1982 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| HYDE, Paul Henry Albert RESIGNED | Director | | 18 Feb 1999 | | June 1948 | 5 Highview, London, SE19 2HU |
| KING, Beverley Anne RESIGNED | Director | | 14 Aug 2015 | United Kingdom | May 1941 | 6 Highview, London, SE19 2HU |
| LINTNER, Dominic Jacob Richard RESIGNED | Director | 27 Aug 2018 | 19 Aug 2020 | England | February 1987 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| MADDEN, Patrick Damian RESIGNED | Director | 18 Apr 2007 | 29 Jun 2012 | United Kingdom | December 1972 | 13 Highview, Anerley Grove, London, SE19 2HU |
| MCLEAY, Duncan Stuart RESIGNED | Director | 20 Mar 1995 | 21 Mar 2000 | | June 1963 | 1 Highview, Anerley Grove Upper Norwood, London, SE19 2HU |
| MESSER, Lesley Carol RESIGNED | Director | | 05 Nov 2012 | United Kingdom | August 1954 | 2 Highview, London, SE19 2HU |
| ROUS, Gary Martin RESIGNED | Director | 21 Apr 1999 | 11 Jun 2009 | | July 1963 | 3 Highview, Anerley Grove, London, SE19 2HU |