| ROLLITS COMPANY SECRETARIES LIMITED ACTIVE | Secretary | 18 Nov 2008 | | | | Citadel House, 58 High Street, Hull, HU1 1QE, England |
| BULLOCK, Stuart John ACTIVE | Director | 13 Jul 2021 | | England | March 1972 | Donaldson Filter Components Limited, Oslo Road, Sutton Fields Estate, Hull, East Yorkshire, HU7 0YN, England |
| COOK, Christine Kerry ACTIVE | Director | 20 Feb 2017 | | England | July 1975 | Donaldson Filter Components Ltd, Oslo Road, Sutton Fields Estate, Hull, East Yorkshire, HU7 0YN, United Kingdom |
| KING, Daniel Jacob ACTIVE | Director | 25 Mar 2014 | | United States | August 1972 | 1400 West 94th Street, Bloomington, Minnesota 55431, United States |
| CLIFFORD CHANCE SECRETARIES LIMITED RESIGNED | Secretary | 19 Feb 1991 | 18 Nov 2008 | | | 10 Upper Bank Street, London, E14 5JJ |
| ANDERSON, Miles Scott RESIGNED | Director | | 25 Mar 2014 | Usa | June 1956 | 5243 Vincent Avenue South, Minneapolis, Minnestoa, FOREIGN, Usa |
| DE BONDT, Arthur Celestine RESIGNED | Director | | 27 Jul 2017 | Belgium | December 1958 | Bakestraat 154, Keerbregen, 3140, Belgium |
| FORBES, Malcolm Andrew RESIGNED | Director | 03 Jul 1995 | 01 Apr 1997 | | November 1945 | Rue Des Astronomies 40, Uccle, Brussels, 1180, Belgium |
| FULLER, Graeme Roy RESIGNED | Director | 19 Mar 2021 | 31 Jan 2024 | England | July 1959 | Citadel House, 58 High Street, Hull, HU1 1QE, England |
| JOWETT, David Ian RESIGNED | Director | 01 Aug 1995 | 09 Feb 2022 | United Kingdom | February 1955 | Manor Farm House, Aike, Driffield, North Humberside, YO25 9BG |
| MCMURRAY, Charles James RESIGNED | Director | 01 Apr 1997 | 25 Mar 2014 | Belgium | December 1953 | Avenue Du Verseau 16, Waterloo, 1410, Belgium |
| METCALFE, Ian Henry RESIGNED | Director | 15 Nov 2002 | 29 Jun 2012 | United Kingdom | March 1950 | 27 Chester Ave, Beverley, East Yorkshire, HU17 8UQ |
| MORGAN, Richard RESIGNED | Director | 08 May 1991 | 21 Jan 1993 | | March 1946 | Molenberglaan 14, Tervuren 3080, FOREIGN, Belgium |
| MUIR, Darren James RESIGNED | Director | 15 Oct 2012 | 24 Feb 2017 | England | September 1974 | Donaldson Filter Components Ltd, Oslo Road, Sutton Fields Estate, Hull, HU7 0YN, England |
| PARFITT, Steven Thomas RESIGNED | Director | | 01 Aug 1995 | United Kingdom | June 1957 | 24b Gringley Road, Misterton, Doncaster, Yorkshire, DN10 4AP |
| RIGBY, Mark David RESIGNED | Director | 12 Nov 2001 | 25 Mar 2014 | Usa | January 1967 | 18605, Overland Trail, Eden Prairie, Minnesota, MN55347, Usa |
| ROBINSON, Scott James, Mr. RESIGNED | Director | 12 Jan 2016 | 15 Jan 2020 | United States | November 1966 | 1400, West 94th Street, Bloomington, Minnesota 55431, United States |
| SCHOEFS, Lev RESIGNED | Director | 14 Jan 2020 | 10 Jun 2020 | Belgium | June 1971 | 1, Interleuvenlaan, Leuven, B-3001, Belgium |
| SCUTT, Robert Alistair RESIGNED | Director | 01 Aug 1995 | 12 Mar 1998 | | April 1958 | 12 Cottage Mews, Beverley, East Yorkshire, HU17 9HD |
| SHAW, James Francis RESIGNED | Director | 25 Mar 2014 | 12 Jan 2016 | Usa/Minnesota | October 1968 | 1400, West 94th Street, Bloomington, Minnesota 55431, Usa |
| SMITH, Roy Herbert RESIGNED | Director | | 03 Jul 1995 | | November 1930 | 109 Dartmouth Avenue, Cannock, Staffordshire, WS11 1EQ |
| TOUW, Geert Henk RESIGNED | Director | | 05 Apr 2005 | | December 1945 | Avenue De La Brise 17, Braine L'Alleud 1420, Belgium |
| VERMEERSCH, Wim Julien Valere RESIGNED | Director | 25 Jan 2012 | 19 Mar 2021 | Belgium | September 1966 | Research Park Building 1301, Interleuven Laan 1, Leuven, 3001, Belgium |
| WILSON, Ian Thomas RESIGNED | Director | 01 Dec 1998 | 18 Mar 2002 | | September 1951 | 4 Willon Field Drive Main Street, Keyingham, Hull, HU12 9RF |