| BACHMAN, Erik ACTIVE | Director | 30 Sep 2019 | | United Kingdom | March 1963 | Unit 3 & 4 Olympic Park, Poole Hall Road, Ellesmere Port, CH66 1ST, England |
| BARNETT, Lynne RESIGNED | Secretary | 27 Jul 2021 | 22 Feb 2024 | | | Pyramid Works, Dock Rd South, Bromborough, Merseyside, CH62 4SP |
| FOX, Stephen Richard RESIGNED | Secretary | | 14 Aug 1998 | | | 11 Stapleton Avenue, Greasby, Wirral, Merseyside, L49 2QT |
| KENNY, Stephen RESIGNED | Secretary | 15 Jul 1999 | 21 May 2015 | | | 5 Quarry Road East, Heswall, Wirral, Merseyside, CH61 6XD |
| MAHER, Anthony William RESIGNED | Secretary | 22 May 2015 | 27 Jul 2021 | | | Pyramid Works, Dock Rd South, Bromborough, Merseyside, CH62 4SP |
| ABELS, Jurgen Hans RESIGNED | Director | 30 Jun 1997 | 31 Jul 1998 | | September 1944 | 2404 Bluff Boulevard, Columbia 65201 Mo, Usa, FOREIGN |
| BOWDEN, Alec Stanley RESIGNED | Director | 13 May 1996 | 31 Dec 2010 | England | December 1945 | 4 Suncroft Road, Heswall, Wirral, Merseyside, CH60 1XZ |
| BRAVO, Juan M RESIGNED | Director | 21 Aug 1998 | 31 Dec 1999 | | March 1937 | 600 Grant Street, Pittsburgh, Pennsylvania, 15219, Usa |
| CRAMER, Alan Bradley, Mr. RESIGNED | Director | 30 Sep 2019 | 30 May 2023 | United States | April 1971 | Pyramid Works, Dock Rd South, Bromborough, Merseyside, CH62 4SP |
| DANCE, Arthur John Westbury RESIGNED | Director | | 31 Mar 1995 | | May 1936 | Kaiser Wilhelm Str, Bad Kreuzach, 6550, Germany |
| DELO, Stephen Michael RESIGNED | Director | 11 Feb 2014 | 30 Jun 2017 | Usa | August 1956 | Harbisonwalker International Limited, 1305 Cherrington Parkway, Suite 100, Moon Township, Pa, 15108, Usa |
| FOX, Stephen Richard RESIGNED | Director | | 14 Aug 1998 | | April 1944 | 11 Stapleton Avenue, Greasby, Wirral, Merseyside, L49 2QT |
| HUMMER, Paul RESIGNED | Director | | 31 Jul 1998 | | December 1941 | 5 Melody Lane, Mexico, Missouri 65265, FOREIGN, Usa |
| HUTCHINSON, Jess Paul RESIGNED | Director | 21 Aug 1998 | 15 May 2001 | | August 1950 | 119 Merino Drive, Canonsburg, Pennsylvania, 15317, Usa |
| JACKSON, Carol Renee RESIGNED | Director | 22 May 2015 | 30 May 2023 | United States | April 1972 | Harbisonwalker International Limited, 1305 Cherrington Parkway, Suite 100, Moon Township, Pa, 15108, United States |
| KARHUT, Guenter RESIGNED | Director | 15 May 2001 | 07 Jan 2014 | Usa | July 1959 | 213 Adams Pointe Blvd, Ste 7, Mars Pa, United States Of America |
| MASSEE, Jan Pieter RESIGNED | Director | 12 Nov 2000 | 01 Apr 2001 | | September 1944 | 1308 Freedom Road, Cranberry Township, Butler County 16066, Usa |
| MOSSER, Jakob Aurel RESIGNED | Director | 09 May 2000 | 11 Dec 2000 | | February 1961 | Rhiag Hommsengasse 35, Vienna, 1040, FOREIGN, Austria |
| ROBERTS, Gary L RESIGNED | Director | | 31 Jul 1998 | | February 1947 | The Guest House Mexico, Missouri 65265, America |
| ROONEY, Peter Anthony RESIGNED | Director | 31 Dec 2010 | 22 May 2015 | United Kingdom | June 1960 | Pyramid Works, Dock Rd South, Bromborough, Merseyside, CH62 4SP |
| SOROKA, Thomas RESIGNED | Director | 21 Aug 1998 | 01 May 2000 | | April 1943 | 1632 Williamsburg Circle, Pittsburgh, Pennsylvania, 15241, Usa |
| SPANRING, Erich Wolfgang, Dr RESIGNED | Director | 01 Apr 2001 | 31 Dec 2005 | | July 1944 | 600 Grant Street, Pittsburgh, Pensylvania 15219, Usa |
| STEWART, William RESIGNED | Director | | 08 Jul 1996 | | August 1934 | 7 The Stables, Guilden Sutton, Chester, Cheshire, CH3 7SY |
| STOVER, Harry Manning RESIGNED | Director | | 02 Feb 1993 | | June 1926 | 2 Henneberry Lane, Golf Illinois 60029, FOREIGN, Usa |