| ROBINSON, Emily Lynne ACTIVE | Secretary | 24 Nov 2021 | | | | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| BONHAM, John Sebastian ACTIVE | Director | 31 Jan 2008 | | United Kingdom | October 1942 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| KALRA, Ripin ACTIVE | Director | 13 Jun 2012 | | United Kingdom | December 1972 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| MITTERBAUER, Philipp ACTIVE | Director | 22 Mar 2022 | | England | January 1978 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| MUTTER, Michael Neilson ACTIVE | Director | 13 Jun 2012 | | United Kingdom | October 1947 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| ROBINSON, Emily Lynne ACTIVE | Director | 23 May 2022 | | England | August 1983 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| ROBINSON, Mark Noel Foster ACTIVE | Director | 13 Jun 2012 | | England | December 1946 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| SAMUELS, Jane ACTIVE | Director | 20 Nov 2014 | | United Kingdom | February 1957 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| DAYSH, Zena RESIGNED | Secretary | | 07 Dec 2010 | | | 57 Stanhope Gardens, London, SW7 5RF |
| EKEHORN, Eva RESIGNED | Secretary | 07 Dec 2010 | 24 Nov 2021 | | | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| BROWN, James Adamson RESIGNED | Director | | 04 Apr 1994 | | March 1928 | 5 Maple Close, Bishops Stortford, Hertfordshire, CM23 2RS |
| CHATALOS, Peter Andrew RESIGNED | Director | 13 Jun 2012 | 20 Nov 2014 | England | November 1964 | Diary House, Rickett Street, London, SW6 1RU, Uk |
| DAYSH, Zena RESIGNED | Director | | 23 Mar 2011 | United Kingdom | April 1914 | 57 Stanhope Gardens, London, SW7 5RF |
| DENMAN, Donald Robert RESIGNED | Director | | 01 Oct 1997 | | April 1911 | 12 Chaucer Road, Cambridge, Cambridgeshire, CB2 2EB |
| DOUGLAS, Ian, Professor RESIGNED | Director | 13 Jun 2012 | 05 Dec 2025 | United Kingdom | December 1936 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| EKEHORN, Eva RESIGNED | Director | 13 Jun 2012 | 24 Nov 2021 | United Kingdom | April 1942 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| HALE, Leslie RESIGNED | Director | | 01 Oct 1997 | | May 1918 | 1 Oakwood Road, Christchurch, Dorset, BH23 5NY |
| HALL, David Wylie, Dr RESIGNED | Director | 01 Sep 2001 | 30 Jul 2004 | | December 1924 | Seven Elms 206 Lent Rise Road, Burnham, Slough, Buckinhamshire, SL1 7AB |
| JONES, John Owen RESIGNED | Director | 01 Oct 1997 | 08 Apr 2008 | | January 1923 | 364 Woodstock Road, Oxford, Oxfordshire, OX2 8AE |
| MORRIS, Eleanor K, Professor RESIGNED | Director | 12 Oct 2008 | 20 Nov 2014 | United Kingdom | November 1935 | 7, Great Stuart Street, Edinburgh, EH3 7TP |
| O'DONNELL, Richard RESIGNED | Director | 13 Jun 2012 | 27 Nov 2013 | United Kingdom | September 1985 | 51 Clarkegrove Road, Sheffield, Yorkshire, S10 2NH |
| STEPHEN, Caryll Dawn RESIGNED | Director | 13 Jun 2012 | 24 Nov 2021 | United Kingdom | May 1944 | The Old Workshop, 1 Ecclesall Road South, Sheffield, S11 9PA |
| SUPRAMANIAM, Ganesh, Dr RESIGNED | Director | 13 Jun 2012 | 24 May 2018 | United Kingdom | October 1943 | 51 Clarkegrove Road, Sheffield, Yorkshire, S10 2NH |
| UNITHAN, Tkn, Professor RESIGNED | Director | 13 Jun 2012 | 02 Jul 2017 | India | August 1932 | 51 Clarkegrove Road, Sheffield, Yorkshire, S10 2NH |
| WATTS, Nicholas, Dr RESIGNED | Director | 13 Jun 2012 | 16 Dec 2015 | Uk | September 1949 | Dorfstrasse 8, D-14715, Milow, To Bahnitz, Germany |