| ONO, Shuhei ACTIVE | Director | 01 Jan 2021 | | Japan | September 1972 | Technoservice Div, 1-1 Tama 3-Chome, Tamano City, Okayama Pref, Japan |
| TOKUDA, Toshiyuki ACTIVE | Director | 04 Mar 2020 | | England | October 1974 | 80, Coleman Street, London, EC2R 5BJ, England |
| ATSUSHIBA, Yuichi RESIGNED | Secretary | 21 Jun 1996 | 17 Jun 1999 | | | 9 Ivor Court, 2 Chalgrove Gardens, London, N3 3PH |
| HURLEY, Caroline Margaret Mary RESIGNED | Secretary | | 05 Jul 1991 | | | 1 Temple Fortune Lane, London, NW11 7UB |
| ISHIBASHI, Takashi RESIGNED | Secretary | 13 Sep 2012 | 11 Sep 2015 | | | Level 16 City Tower, 40 Basinghall Street, London, EC2V 5DE |
| KAWAMOTO, Mitsuharu RESIGNED | Secretary | 20 Jan 2003 | 27 Feb 2006 | | | 11 Lowlands, 2-8 Eton Avenue, London, NW3 3EJ |
| KOTARI, Kazutoshi RESIGNED | Secretary | 05 Jul 1991 | 25 Jun 1993 | | | 18 Field Court, 77 Fitzjohns Avenue Hampstead, London, NW3 6NY |
| OKI, Muneki, Company Secretary & Treasurer RESIGNED | Secretary | 11 Sep 2015 | 05 Jun 2020 | | | 5th Floor, 30 City Road, London, EC1Y 2AY, England |
| OSHIMA, Manabu RESIGNED | Secretary | 17 Jun 1999 | 20 Jan 2003 | | | 12 Elmstead Close, London, N20 8ER |
| SUMIDA, Takahiro RESIGNED | Secretary | 27 Feb 2006 | 21 Jul 2009 | | | Flat 5 Highview House, 6 Queens Road, London, NW4 2TH |
| TANAKA, Hiroyuki RESIGNED | Secretary | 25 Jun 1993 | 20 Jun 1996 | | | 64 Laurel Way, London, N20 8HU |
| WATANABE, Koichi RESIGNED | Secretary | 21 Jul 2009 | 13 Sep 2012 | | | Level 16 City Tower, 40 Basinghall Street, London, EC2V 5DE |
| ABE, Hitoshi RESIGNED | Director | 01 Jan 2004 | 31 Mar 2010 | | February 1950 | 19 St Regis Heights, Firecrest Drive, London, NW3 7NE |
| EDO, Muneo RESIGNED | Director | 01 Apr 1999 | 01 Apr 2001 | | February 1944 | 4-905 Higashino-Machi, 4-3-1 Ryokuen Izumi-Ku, Yokohama City, Kanagawa Pref, 2450002, Japan |
| FUKUI, Naokazu RESIGNED | Director | 01 Apr 2010 | 31 Mar 2018 | Japan | October 1957 | 5th Floor, 30 City Road, London, EC1Y 2AY, England |
| ISHIDA, Hideki RESIGNED | Director | 01 Apr 2001 | 01 Jul 2003 | | May 1946 | 12-22, 3 Chome Hachimandai, Sakura City, Chiba Pref 285 0467, Japan |
| ITANI, Mitsuo RESIGNED | Director | 05 Jul 1991 | 25 Jun 1993 | | March 1933 | 662 - 308 Hata - Machi, Chiba City Chiba Prefecture 281, FOREIGN, Japan |
| IWANE, Masao RESIGNED | Director | 25 Jun 1993 | 31 Mar 1994 | | March 1933 | 2-1-21 Miyasaka, Setagaya-Ku, Tokyo, 156, Japan |
| KATO, Yasuhiko RESIGNED | Director | 01 Jun 2001 | 01 Jun 2001 | | May 1947 | 38 Grove Court, Grove End Road, London, NW8 9EP |
| KATO, Yasuhiko RESIGNED | Director | 01 Jun 2001 | 31 Dec 2003 | | May 1947 | 1 Queens Court, 4-8 Finchley Road, London, NW8 6DA |
| KITAOKA, Shohachi RESIGNED | Director | | 05 Jul 1991 | | January 1933 | 1-4-29-A103 Miyamaedaira, Miyamare-Ku, Kawasaki City, FOREIGN, Japan |
| KOSAKA, Naomasa RESIGNED | Director | 01 Jul 2003 | 18 Apr 2005 | | December 1949 | 3-30-B302, Komaoka Tsurumi-Ku, Yokohama-City, Kanagawa Prefecture 230-0071, Japan |
| KOSAKA, Naomasa RESIGNED | Director | 01 May 1998 | 01 Jun 2001 | | December 1949 | 15 Walsingham, St Johns Wood Park, London, NW8 6RG |
| KOSHIN, Tadatoshi RESIGNED | Director | 01 Apr 2018 | 04 Mar 2020 | Japan | April 1971 | 1-1, Tama 3-Chome, Tamano, Okayama, Japan |
| KOTARI, Kazutoshi RESIGNED | Director | 05 Jul 1991 | 25 Jun 1993 | | August 1942 | 18 Field Court, 77 Fitzjohns Avenue Hampstead, London, NW3 6NY |
| KUWAJIMA, Masahiro RESIGNED | Director | 01 Apr 2010 | 31 Mar 2011 | United Kingdom | January 1958 | Level 16 City Tower, 40 Basinghall Street, London, EC2V 5DE |
| KYOTANI, Yoshiaki RESIGNED | Director | 01 Nov 1994 | 13 Dec 1996 | | May 1945 | 2 Blair Court, Boundary Road, London, Nw8, NW8 6NT |
| OGAWA, Shinichi RESIGNED | Director | 01 May 2002 | 01 Nov 2003 | | May 1946 | 112 Longland Drive, London, N20 8HL |
| OGAWA, Shinichi RESIGNED | Director | 14 Dec 1996 | 02 Jan 2001 | | May 1946 | 112 Longland Drive, London, N20 8HL |
| OHTA, Norikazu RESIGNED | Director | 31 Mar 1994 | 01 Jul 1997 | | February 1935 | 8-5-207 Takaido Higashi 3 Chome, Suginami-Ku, Tokyo, Japan |
| OKADA, Takashi RESIGNED | Director | 18 Apr 2005 | 31 Mar 2010 | | January 1949 | 1-20-18 Matsubara, Setagaya-Ku, Tokyo, FOREIGN, Japan |
| SAKURAI, Makoto RESIGNED | Director | 25 Jun 1993 | 25 Oct 1993 | | September 1947 | 8 Champneys Close, Sutton, Surrey, SM2 7AL |
| SAKURAI, Makoto RESIGNED | Director | 25 Jun 1993 | 01 Nov 1994 | | September 1947 | 51a Ashley Road, Epsom, Surrey, KT18 5BN |
| SASAKI, Michio RESIGNED | Director | 01 Jul 1998 | 31 Mar 1999 | | February 1949 | Nishinora 1-2-8-306, Inzai-City, Chiba Pref, 2701334, Japan |
| SATAKE, Akira RESIGNED | Director | 04 Mar 1994 | 30 Apr 1998 | | December 1941 | 8 Merlin House, Oakhill Park, London, NW3 |
| SUMI, Masayuki RESIGNED | Director | 01 Jul 1997 | 01 Jul 1998 | | March 1936 | 505-52 Nishiarai, Ohmiya-Shi, Saitama Pref, Japan |
| TAKAHASHI, Masahide, Mr. RESIGNED | Director | 01 Sep 2018 | 31 Dec 2020 | Japan | June 1968 | Techno Service Dept, 1-1 Tama 3-Chome, Tamano City, Okayama Pref, Japan |
| TANAKA, Motoharu RESIGNED | Director | | 04 Mar 1994 | | July 1939 | 353 Lauderdale Tower, London, EC2Y 8NA |
| TOMOHIRO, Tsugunari, Mr. RESIGNED | Director | 01 Jan 2016 | 31 Mar 2018 | England | February 1962 | 5th Floor, 30 City Road, London, EC1Y 2AY, England |
| YOSHINO, Isao RESIGNED | Director | 01 Apr 2011 | 01 Jan 2016 | England | February 1959 | 5th Floor, City Road, London, EC1Y 2AY, England |
| MITSUI ZOSEN EUROPE LIMITED RESIGNED | Director | 01 Apr 2010 | 01 Apr 2010 | | | Level 16,, City Tower, 40 Basinghall Street, London, EC2V 5DE, United Kingdom |