| RAINE, David ACTIVE | Director | 01 Dec 2022 | | United Kingdom | August 1965 | Accent House, Triangle Business Park, Wendover Road, Stoke Mandeville, Buckinghamshire, HP22 5BL |
| SATTEL, Anatol ACTIVE | Director | 01 Aug 2024 | | Germany | March 1978 | Sumitomo Demag Plastics Machinery Gmbh, Altdorfer Str 15, 90571 Schwaig, Germany |
| WALKER, David Paul ACTIVE | Director | 01 Feb 2026 | | England | November 1974 | Unit 19, Chartmoor Road, Leighton Buzzard, Bedfordshire, LU7 4WG, England |
| HERRINGTON, Rosemary RESIGNED | Secretary | 01 Jul 1991 | 17 May 2019 | | | Summerfield, Hill Road, Watlington, Oxfordshire, OX49 5AF |
| TAYLOR, Barrington Arthur RESIGNED | Secretary | | 01 Jul 1991 | | | 65 Quainton Road, Waddesdon, Aylesbury, Buckinghamshire, HP18 0LN |
| CHIVERS, Anthony Victor RESIGNED | Director | 01 Apr 1998 | 14 Jul 2000 | | August 1946 | 74 Moorhen Way, Buckingham, Buckinghamshire, MK18 1GU |
| CRAWFORD, Ian RESIGNED | Director | 01 Feb 2003 | 25 Mar 2004 | | July 1961 | 21 Bow Brickhill Road, Woburn Sands, Buckinghamshire, MK17 8QD |
| DEAN, Shaun RESIGNED | Director | 04 Nov 2009 | 01 Jun 2013 | United Kingdom | October 1965 | 15, Styles Croft, Swanland, North Ferriby, East Riding, HU14 3NU, United Kingdom |
| FISCHBACH, Gunther RESIGNED | Director | 01 Feb 1996 | 31 Mar 1998 | | May 1956 | 4 Dunsmore Avenue, Princes Risborough, Buckinghamshire, HP27 9JX |
| FISCHER, Christoph RESIGNED | Director | 03 Nov 1994 | 31 Jan 2001 | | June 1941 | Garden Cottage, Cheapside Lane, Denham, Uxbridge, Middlesex, UB9 5AD |
| FLOWERS, Nigel Middleton RESIGNED | Director | 01 Apr 1998 | 31 Jan 2025 | England | May 1960 | 17, King Edward Avenue, Aylesbury, HP21 7JD, England |
| FRANZ, Helmar RESIGNED | Director | 01 Apr 1999 | 30 Apr 2005 | | January 1950 | Ettersburg, Thuringia, 99439, Germany |
| HERLIHY, Graeme Andrew RESIGNED | Director | 17 May 1999 | 30 Sep 2002 | | May 1963 | 10 Kingsgate, Aylesbury, Buckinghamshire, HP19 8GG |
| HOEGEMANN, Herbert RESIGNED | Director | 01 May 2005 | 30 Apr 2006 | | April 1954 | Schillerstrasse 12, 85139 Wettstetten, Germany |
| JACKSON, Robert Keighley RESIGNED | Director | | 31 Dec 1995 | | January 1947 | 8, The Meadows, Breachwood Green, Hitchin, Hertfordshire, SG4 8PR |
| KINZIUS, Kurt-Juergen, Dr RESIGNED | Director | | 03 Nov 1994 | | February 1957 | 18 Ronald Road, Beaconsfield, Buckinghamshire, HP9 1AJ |
| KOENIG, Florian, Dr RESIGNED | Director | 01 Feb 2001 | 31 Oct 2005 | | February 1966 | 19 Tortoiseshell Way, Berkhamsted, Hertfordshire, HP4 1TB |
| KUETZING, Gerhard RESIGNED | Director | | 08 Oct 1993 | | May 1937 | D856 Lauf/Pegnitz, Hans Sachs-Strasse 8, Germany |
| LEHWALD, Klaus RESIGNED | Director | 01 Mar 1996 | 14 May 1999 | | December 1960 | 23 Cheshire Road, Thame, Oxfordshire, OX9 3LQ |
| LIEBIG, Gerd RESIGNED | Director | 01 Jan 2017 | 31 Aug 2024 | Germany | April 1961 | Accent House, Triangle Business Park, Wendover Road, Stoke Mandeville, Buckinghamshire, HP22 5BL |
| OKAMURA, Tetsuya, Dr RESIGNED | Director | 28 Nov 2014 | 31 Dec 2016 | Germany | May 1956 | Accent House, Triangle Business Park, Wendover Road, Stoke Mandeville, Buckinghamshire, HP22 5BL |
| RENNERS, Christian RESIGNED | Director | 01 Jun 2013 | 28 Nov 2014 | Germany | October 1965 | Accent House, Triangle Business Park, Wendover Road, Stoke Mandeville, Buckinghamshire, HP22 5BL, United Kingdom |
| TAYLOR, Barrington Arthur RESIGNED | Director | | 31 Dec 2001 | | August 1942 | Sunnybrook Farm Green End Street, Aston Clinton, Buckinghamshire, HP22 5EU |
| THORNE, Donald RESIGNED | Director | | 03 Sep 1993 | | September 1931 | 50 Ockley Road, Croydon, Surrey, CR0 3DQ |
| VON SCHROETER, Wolfgang RESIGNED | Director | | 31 Mar 1999 | | March 1938 | Bruehler Weg 51 4005 Meerbusch 1, Germany |
| WHITEHEAD, Keith RESIGNED | Director | | 01 Jan 1993 | | August 1937 | 24 Belfry Drive, Tytherington Links, Macclesfield, Cheshire, SK10 2TD |