TOP > About Us

  • Message

    Please read a message from OYO’s president, Masaru Narita

  • Management Philosophy and Management Vision

    OYO manages its business toward a sustainable society, following the philosophy and the vision. Corporate principles and plans are also available on this page.

  • Corporate Profile

    Corporate Information Outline as of 31 December, 2017

    Last update：22 May, 2018

  • Progress

    Our corporate history from the foundation year (1957) to 2017

    Last update：8 May, 2017

  • Directors & Executive Officers

    A current list of Directors & Executive Officers as of April 1, 2018

    Last update：1 January, 2019

  • Organization Chart

    An organization chart as of 1 April, 2018

    Last update：1 April, 2018

  • Divisions/Offices

    As a Clients’ closest partner, OYO has 50 offices nationwide in Japan

    Last update：1 April, 2018

  • Qualified Engineers

    Number of Qualified Engineers as of 21 May, 2018

    Last update：21 May, 2018

  • Group Companies

    Last update：26 April, 2018

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