| HART, Jonathan Matthew ACTIVE | Secretary | 01 Jul 2020 | | | | 1, Park Avenue, Bushey, WD23 2DA, England |
| HART, Jonathan Matthew ACTIVE | Director | 01 Apr 2026 | | England | June 1979 | 1 Park Avenue, Bushey, WD23 2DA, United Kingdom |
| KOIKE, Koji ACTIVE | Director | 01 Apr 2025 | | Japan | January 1969 | 1 Park Avenue, Bushey, WD23 2DA, United Kingdom |
| OYOBIKI, Masashi ACTIVE | Director | 01 Apr 2024 | | Japan | October 1966 | 1, Park Avenue, Bushey, WD23 2DA, United Kingdom |
| BRYANT, Geoffrey John RESIGNED | Secretary | 09 Jun 2006 | 31 Dec 2016 | | | Meggacres Farm, Megg Lane Chipperfield, Kings Langley, Herts, WD4 9JW |
| BRYANT, Mary Rose RESIGNED | Secretary | 01 Dec 1998 | 09 Jun 2006 | | | Meggacres Farm, Megg Lane, Chipperfield, Kings Langley, Hertfordshire, WD4 9JW |
| JEFFREYS, Iris Teresa RESIGNED | Secretary | | 01 Dec 1998 | | | 19 Hillcroft Avenue, Purley, Surrey, CR8 3DJ |
| AMSWYCH, Robin Jacob RESIGNED | Director | 01 Apr 1997 | 09 Jun 2006 | | October 1943 | 36 Silverthorn Drive, Hemel Hempstead, Hertfordshire, HP3 8BX |
| BRYANT, Geoffrey John RESIGNED | Director | | 31 Dec 2016 | England | April 1951 | Meggacres Farm, Megg Lane Chipperfield, Kings Langley, Herts, WD4 9JW |
| DOYLE, Roger James RESIGNED | Director | | 01 Jan 1992 | | October 1942 | 18 Cavalier Court, Chesham Road, Berkhamsted, Hertfordshire, HP4 3AL |
| HANYU, Kenichiro RESIGNED | Director | 01 Jan 2011 | 01 Apr 2012 | Kanagawa-Ken, Japan | January 1956 | 500 Akazawa, Yabuki-Machi, Nishishirakawa-Gun, Fukushima-Ken, Japan |
| HART, Jonathan Matthew RESIGNED | Director | 01 Jan 2017 | 30 Jun 2020 | England | June 1979 | 1 Park Avenue, Bushey, WD23 2DA |
| INA, Hideo RESIGNED | Director | 01 Apr 2022 | 31 Mar 2024 | Japan | May 1965 | 1, Park Avenue, Bushey, WD23 2DA, England |
| IWASAKI, Toshio RESIGNED | Director | 09 Jun 2006 | 25 Mar 2008 | | September 1942 | 482-123, Shiono, Miyota-Machi, Kitasaku-Gun, Nagano, Japan |
| JAMES, Edward Harry RESIGNED | Director | 01 Jan 2017 | 31 Mar 2024 | England | April 1969 | 1 Park Avenue, Bushey, WD23 2DA |
| JEFFREYS, Kenneth Raymond RESIGNED | Director | | 31 Mar 1997 | | November 1938 | 19 Hillcroft Avenue, Purley, Surrey, CR8 3DJ |
| KAMATA, Hiromitsu RESIGNED | Director | 01 Apr 2015 | 01 Apr 2022 | Japan | February 1963 | 1 Park Avenue, Bushey, WD23 2DA |
| KAMATA, Hiromitsu RESIGNED | Director | 01 Jan 2011 | 01 Apr 2012 | Esslingen Germany | February 1963 | Mettingerstr.11, Esslingen, 73726, Germany |
| KASAHARA, Shinsuke RESIGNED | Director | 25 Mar 2008 | 27 Mar 2009 | | August 1948 | 1-7-10 Kuboinari, Iruma, Saitama 358-0024, Japan |
| KUBOTA, Mamoru RESIGNED | Director | 01 Apr 2024 | 31 Mar 2025 | Japan | May 1961 | 1, Park Avenue, Bushey, WD23 2DA, United Kingdom |
| KUDO, Koichiro RESIGNED | Director | 01 Apr 2023 | 01 Apr 2026 | Japan | July 1969 | 1, Park Avenue, Bushey, WD23 2DA, England |
| KUMADA, Nobuo RESIGNED | Director | 25 Mar 2008 | 01 Jan 2011 | Germany | May 1951 | Hindenburg Strasse 199, Esslingen, 73730, Germany |
| LINDENBERG, Jurgen Wilhelm, Dipl.-Jng RESIGNED | Director | 24 Mar 2010 | 31 Dec 2016 | Germany | April 1953 | Citizen Machinery Europe Gmbh, Nettinger Strasse, Esslingen, 73728, Germany |
| NAGASAWA, Toshiyuki RESIGNED | Director | 01 Apr 2012 | 31 Mar 2023 | Japan | February 1957 | 1 Park Avenue, Bushey, WD23 2DA |
| NAKAJIMA, Keiichi RESIGNED | Director | 01 Apr 2012 | 31 Mar 2014 | Japan | August 1958 | 1 Park Avenue, Bushey, WD23 2DA |
| NAKAMURA, Yukata RESIGNED | Director | 09 Jun 2006 | 01 Jan 2011 | Japan | December 1949 | 1292 Yamaguchi, Tokorozawa-Shi, Saitama, Japan |
| SUGIMOTO, Kenji RESIGNED | Director | 27 Mar 2009 | 24 Mar 2010 | | January 1948 | 4-6-17 Mocuoi, Suginarmi 167-0034, Tokyo, Japan |
| WILKINS, Darren Michael John RESIGNED | Director | 01 Apr 2012 | 31 Mar 2020 | United Kingdom | February 1965 | 1 Park Avenue, Bushey, WD23 2DA |
| YOSHIMUTA, Masayuki RESIGNED | Director | 01 Apr 2014 | 31 Mar 2015 | Japan | March 1960 | 1 Park Avenue, Bushey, WD23 2DA |