| BLINCOW, Alison Sarah ACTIVE | Secretary | 15 Feb 2018 | | | | -, Nottingham Road, Belper, Derbyshire, DE56 1JT |
| BLINCOW, Alison Sarah ACTIVE | Director | 03 Apr 2018 | | England | May 1978 | -, Nottingham Road, Belper, Derbyshire, DE56 1JT |
| BROOKS, Kim Joyce ACTIVE | Director | 28 Aug 2019 | | England | March 1968 | -, Nottingham Road, Belper, Derbyshire, DE56 1JT |
| HANSEN, Henrik Juhl ACTIVE | Director | 01 Jan 2022 | | Denmark | December 1963 | -, Nottingham Road, Belper, Derbyshire, DE56 1JT |
| CLINTON, Amanda RESIGNED | Secretary | 20 Mar 2007 | 01 Oct 2012 | | | 2 All Saints Meadows, Laughton Common, Dinnington, Sheffield, South Yorkshire, S25 3UD |
| CLINTON, Amanda RESIGNED | Secretary | 11 Jun 2001 | 04 Mar 2002 | | | 85 John Hibbard Avenue, Woodhouse Mill, Sheffield, S13 9UT |
| FORD, Graham Evan RESIGNED | Secretary | 01 Oct 2012 | 30 Jun 2014 | | | -, Nottingham Road, Belper, Derbyshire, DE56 1JT, England |
| GRANTHAM, Helen Clare RESIGNED | Secretary | 05 Sep 1994 | 10 Nov 1997 | | | 53 Southdown Road, Harpenden, London, AL5 1PQ |
| HORTON, Christopher John RESIGNED | Secretary | 01 Jun 1994 | 31 Aug 1994 | | | 72 Clumber Street, Kirkby In Ashfield, Nottingham, Nottinghamshire, NG17 7NG |
| JONES, Christopher Bryan RESIGNED | Secretary | 04 Mar 2002 | 20 Mar 2007 | | | 23 Blacka Moor Crescent, Dore, Sheffield, South Yorkshire, S17 3GL |
| MORTON, Julia Alison RESIGNED | Secretary | 25 Jul 2000 | 11 Jun 2001 | | | 11 Tarland House, Bayhall Road, Tunbridge Wells, Kent, TN2 4TP |
| STONE, Zillah Wendy RESIGNED | Secretary | 10 Nov 1997 | 25 Jul 2000 | | | 34 Meadow Road, London, SW19 2ND |
| STORK, Geoffrey RESIGNED | Secretary | | 01 Jun 1994 | | | 32 St Quentin Drive, Sheffield, South Yorkshire, S17 4PP |
| BROSSET, Michel, Dr RESIGNED | Director | 26 Apr 2001 | 31 Jan 2007 | | January 1956 | Am Sportplatz 6, Monheim/Rhein, D-40789, Germany |
| BROWN, Stuart RESIGNED | Director | 03 Apr 2018 | 14 Dec 2018 | England | July 1967 | -, Nottingham Road, Belper, Derbyshire, DE56 1JT |
| FORD, Graham Evan RESIGNED | Director | 16 Feb 2009 | 30 Jun 2014 | United Kingdom | December 1951 | 71 Goose Lane, Wickersley, Rotherham, South Yorkshire, S66 1JS |
| GORANSSON, Rolf Claes Erik RESIGNED | Director | 26 Apr 2001 | 30 Jun 2009 | | August 1953 | Unter Den Ulmen 1, 50968 Koln, Germany |
| GRANTHAM, Helen Clare RESIGNED | Director | 01 Jun 1997 | 26 Apr 2001 | | January 1965 | 53 Southdown Road, Harpenden, London, AL5 1PQ |
| JESSE, Klaus RESIGNED | Director | 14 Nov 2018 | 31 Dec 2021 | Germany | February 1959 | -, Nottingham Road, Belper, Derbyshire, DE56 1JT |
| JONES, Christopher Bryan RESIGNED | Director | 20 Mar 2007 | 02 Oct 2012 | England | April 1954 | 23 Blacka Moor Crescent, Dore, Sheffield, South Yorkshire, S17 3GL |
| JONES, Christopher Bryan RESIGNED | Director | | 04 Oct 2001 | | April 1954 | 89 Townhead Road, Dore, Sheffield, South Yorkshire, S17 3GE |
| MEISTER, Dietmar Jurgen, Dr. RESIGNED | Director | 30 Jun 2009 | 31 Dec 2017 | Germany | August 1962 | 40, Berghauser Str, 42859 Remscheid, Germany |
| PAUL, Julian Sibree RESIGNED | Director | | 01 Jun 1997 | | July 1942 | Upper House Farm, Ughill, Low Bradfield, Sheffield, S6 6HU |
| WAKELY, Stephen Victor RESIGNED | Director | 12 Nov 2012 | 06 Apr 2018 | England | May 1961 | -, Nottingham Road, Belper, Derbyshire, DE56 1JT, England |