| CHERRY, Simon John ACTIVE | Secretary | 01 Apr 1998 | | | | 57, Wantage Road, Northampton, NN1 4TH, England |
| VAN DEN BROEK, Hendricus Damianus Wilhelmus Maria ACTIVE | Director | 13 Apr 2017 | | Netherlands | August 1965 | Lenze Bv, Ploegweg 15, Hertogenbosch, 5232 BR, Netherlands |
| WUCHERER, Marc, Dr ACTIVE | Director | 01 Jan 2025 | | Germany | November 1969 | Lenze Se, Hans-Lenze-Strasse 1, 31855, Aerzen, Germany |
| RICHTER, Annette RESIGNED | Secretary | | 01 Apr 1998 | | | Abbey Farm Jacks Lane, Turvey, Bedford, MK43 8DH |
| FOSTER, David John RESIGNED | Director | 01 Jul 1994 | 05 May 2006 | | January 1945 | 1 Parsonage Close, Oakley, Bedford, MK43 7TG |
| HERZOG, Otto Heinrich, Prof Dr RESIGNED | Director | 09 Oct 2000 | 06 Mar 2002 | | September 1944 | Kaninchenberg 15 D-31787 Hameln, Hameln, Lower Saxony, D31787, Germany |
| HYLDEN, Stewart Ronald RESIGNED | Director | 01 Jul 1994 | 12 Jun 2018 | United Kingdom | June 1953 | 4 Strawberry Hill Cottages, Knotting Green, Knotting, Bedford, Bedfordshire, MK44 1AB |
| KARL, Heinz-Dietmar RESIGNED | Director | 26 Feb 1999 | 09 Oct 2000 | | November 1943 | Beethovenstrasse 12, Barntrup, 32683, Germany |
| KIRCHHERR, Matthias, Dr RESIGNED | Director | 10 Dec 2009 | 15 Apr 2011 | Germany | November 1962 | Lenze Limited, Fraser Road, Priory Business Park, Bedford, MK44 3WH, United Kingdom |
| LOHSE, Peter, Dr RESIGNED | Director | 26 Feb 1999 | 06 Mar 2002 | | February 1939 | Ritterring 16, Bad Pyrmont, D 31812, Germany |
| MAROLDT, Heinz Herbert Paul RESIGNED | Director | | 26 Mar 1993 | | November 1923 | Oak Lodge Church Lane, Oakley, Bedford, Bedfordshire, MK43 7RP |
| MOLLEKEN, Michael RESIGNED | Director | 06 Mar 2002 | 01 Dec 2009 | | April 1959 | 15, Kaninchenberg 15, 31787 Hameln, Germany |
| RICHTER, Annette RESIGNED | Director | 01 May 1998 | 26 Feb 1999 | | October 1957 | Abbey Farm Jacks Lane, Turvey, Bedford, MK43 8DH |
| RICHTER, Annette RESIGNED | Director | 17 Nov 1992 | 07 Dec 1992 | | October 1957 | Parklands The Drive, Oakley, Bedford, Bedfordshire, MK43 7ST |
| RICHTER, Lutz Henning RESIGNED | Director | | 30 Apr 1999 | | September 1940 | Abbey Farm, Jacks Lane, Turvey, Bedfordshire, MK43 8DH |
| TELLBUSCHER, Erhard, Dr RESIGNED | Director | 06 Mar 2002 | 31 Dec 2013 | Germany | January 1949 | Auf Av Huleke 14, Bad Salzuflen, 32101 North Rhine Westphalia, Germany |
| WENDLER, Christian Albert RESIGNED | Director | 03 May 2016 | 31 Dec 2024 | Germany | July 1962 | Lenze Se, Postfach 10 13 52, D31763 Hameln, Germany |