SEPTENI

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Executives

Directors

  • 佐藤 光紀

    Representative Director Koki Sato

    Career Summary

    1997 Joined the Company
    2001 Director and General Manager of Internet Operations
    2003 Managing Director (CMO)
    2004 Senior Managing Director (COO)
    2007 Senior Managing Director
    2009 Representative Director (current position) and President, SEPTENI HOLDINGS CO.,LTD.
    2017 Group President and Chief Executive Officer, SEPTENI HOLDINGS CO.,LTD. (current position)
    2019 Executive Officer of Dentsu Inc.
    2020 Outside Director, FOOD & LIFE COMPANIES LTD. (current position)
    Reasons for Appointment of Directors

    Since joining the Company, Mr. Koki Sato established a new field which has become a major pillar of the Group business, always leading from the front. Furthermore, he has led the management of the entire Group over the course of many years, steadily addressing a range of management challenges to enhance corporate value, and because he is expected to continue to exercise strong leadership.

  • 岡島　悦子

    Outside Director Etsuko Okajima

    Career Summary

    1989 Joined Mitsubishi Corporation
    2001 Joined McKinsey & Company
    2002 Joined Globis Management Bank, Inc.
    2005 President, Globis Management Bank, Inc.
    2007 CEO, ProNova Inc. (current position)
    2014 Outside Director, Astellas Pharma Inc.
    External Director, MARUI GROUP Co., Ltd. (current position)
    2015 External Director, LANCERS, Inc.(current position)
    Outside Director, SEPTENI HOLDINGS CO.,LTD.(current position)
    2016 Outside Director, Link and Motivation Inc.
    2018 Outside Director, Yappli, Inc. (current position)
    Outside Director, Euglena Co., Ltd.
    2019 External Director, Money Forward, Inc. (current position)
    2020 Director, CHRO, Euglena Co., Ltd. (current position)
    Reasons for Appointment of Outside Directors

    Ms. Etsuko Okajima has an abundance of experience and knowledge, and considerable insight of corporate management, and because she has actively provided useful advice on all aspects of the business administration of the Group from an independent and objective position, she is deemed capable of providing oversight and advice on the Company’s business administration as an outside director.

  • 朝倉 祐介

    Outside Director Yusuke Asakura

    Career Summary

    2007 Joined McKinsey & Company
    2010 Joined Naked Technology Inc.
    Representative Director, President and CEO, Naked Technology Inc.
    2011 Joined mixi Inc.
    2013 Representative Director, President and CEO, mixi Inc.
    2014 Visiting scholar, Stanford University
    2015 Outside director, Raksul, Inc.
    2016 Outside director, Loco Partners
    2017 Visiting scholar, National Graduate Institute for Policy Studies
    Representative Director, Signifiant Inc. (current position)
    Outside Director, SEPTENI HOLDINGS CO.,LTD. (current position)
    Reasons for Appointment of Outside Directors

    Mr. Yusuke Asakura has professional and extensive experience and results, and considerable insight as an executive at listed internet companies, as a researcher and as an investor, and because he has actively provided useful advice on all aspects of the business administration of the Group, he is deemed capable of providing oversight and advice on the Company’s business administration as an outside director.

  • 石川 善樹

    Outside Director Yoshiki Ishikawa

    Career Summary

    2008 Director, Cancer Scan Co., Ltd. (current position)
    2014 Director, Campus for H Inc. (current position)
    2019 External Director (Audit & Supervisory Committee Member), Sansan, Inc.
    External Director, Gaiax Co.Ltd. (current position)
    Outside Director, SEPTENI HOLDINGS CO.,LTD. (current position)
    Reasons for Appointment of Outside Directors

    Mr. Yoshiki Ishikawa has professional, extensive experience and results, and considerable insight as both a preventive medicine researcher and as a founder of a company using methods based on behavioral science, and because he has actively provided useful advice on all aspects of the business administration of the Group, he is deemed capable of providing oversight and advice on the Company’s business administration as an outside director.

  • 入山 章栄

    Outside Director Akie Iriyama

    Career Summary

    1998 Joined Mitsubishi Research Institute, Inc.
    2008 Assistant Professor, University at Buffalo, the State University of New York
    2013 Associate Professor, Business School, Waseda University
    2016 Outside Director, Macromill, Inc.
    2019 Professor, Business School, Waseda University (current position)
    Outside Director, Rohto Pharmaceutical Co., Ltd. (current position)
    2020 Outside Director, Sanoh Industrial Co., Ltd. (current position)
    Outside Director, SEPTENI HOLDINGS CO.,LTD. (current position)
    Reasons for Appointment of Outside Directors

    Mr. Akie Iriyama has operational experience as a consultant, along with professional, extensive experience and results and considerable insight as a researcher specialized in the management strategies and the global management fields, and because he has actively provided useful advice on all aspects of the business administration of the Group, he is deemed capable of providing oversight and advice on the Company’s business administration as an outside director.

  • 髙岡 美緒

    Outside Director Mio Takaoka

    Career Summary

    1999 Joined Goldman Sachs Japan Securities
    2002 Joined Morgan Stanley Japan Securities (currently Morgan Stanley MUFG Securities Co., Ltd.)
    2006 Joined Lehman Brothers Japan Securities
    2009 Joined Monex Group, Inc.
    2014 Executive, General Manager of new business, Monex Group, Inc.
    Director, Monex Ventures, Inc.
    2017 Joined MedicalNote, Inc.
    Partner, Arbor Ventures
    2018 Director, MedicalNote, Inc.
    2020 Outside Director, SEPTENI HOLDINGS CO.,LTD. (current position)
    2021 Outside Director, KAYAC Inc.
    Partner, DNX Ventures(current position)
    Outside Director, HENNGE K.K.(current position)
    2022 Outside Director, Information Services International-Dentsu, Ltd.(current position)
    Outside Director (Audit & Supervisory Committee Member), KAYAC Inc. (current position)
    Reasons for Appointment of Outside Directors

    Ms. Mio Takaoka has professional, extensive experience and results, and considerable insight of strategic investment, new business development and finance, and because she has actively provided useful advice on all aspects of the business administration of the Group, she is deemed capable of providing oversight and advice on the Company’s business administration as an outside director.

  • 山口 修治

    Director Shuji Yamaguchi

    Career Summary

    1989 Joined Dentsu Inc. (currently Dentsu Group Inc.)
    2017 Managing Director of Digital Platform Center, Dentsu Inc.
    Director, D2C Inc.
    2018 Representative Director and CEO, Dentsu Digital Inc.
    Director, Dentsu Digital Inc.
    2019 Executive Officer and Managing Director of Digital Business Center, Dentsu Inc. (currently Dentsu Group Inc.)
    2020 Executive Officer (current position) and Managing Director of Digital Business Center, Dentsu Inc.
    Director, Rakuten Data Marketing, Inc.
    Director, Information Services International-Dentsu, Ltd.
    Director, CARTA HOLDINGS, INC.
    2021 Executive Officer, Dentsu Japan Network, Dentsu Group Inc. (current position)
    2022 Director, SEPTENI HOLDINGS CO.,LTD. (current position)
    Mr. Shuji Yamaguchi joined Dentsu Inc. in 1989 and has extensive operational experience and management experience, including serving as an Executive Officer in charge of the Digital Business of that company since 2019. Therefore, because he has actively provided useful advice on all aspects of the Company’s management and been able to contribute to the promotion of alliance operations with the Dentsu Group, he is deemed qualified as a director.

Auditor

  • Tadahiro Mouri

    Outside Auditor (Full-time) Tadahiro Mouri

    Career Summary

    1980 Joined Taiyo Fishery Co., Ltd. (currently Maruha Nichiro Corporation)
    2012 General Manager of Administration Department, Maruha Nichiro Foods, Inc. (currently Maruha Nichiro Corporation)
    2014 General Manager of Logistics Department, Maruha Nichiro Corporation
    General Manager of Risk Management Department, Maruha Nichiro Corporation
    2018 Advisor, DAITO GYORUI CO., LTD
    Director (Full-time Audit & Supervisory Committee Member), DAITO GYORUI CO., LTD
    2020 Outside Auditor (Full-time), SEPTENI HOLDINGS CO.,LTD. (current position)
  • Mamoru Furushima

    Outside Auditor Mamoru Furushima

    Career Summary

    1993 Joined Chuo Audit Corporation
    1997 Registered as a certified public accountant
    2000 Joined the Fuji Accounting Office
    2003 Joined PwC Advisory Co., Ltd.
    2007 Joined the Legal Training and Research Institute of Japan under the Supreme Court of Japan
    2008 Registered as a lawyer (Tokyo Bar Association)
    2009 Joined Okuno & Partners
    2015 Representative of Furushima Law & Accounting Office
    Outside Director (audit and supervisory member) of Nippon Chemical Industrial Co.,Ltd.
    Outside Auditor, SEPTENI HOLDINGS CO.,LTD. (current position)
    2020 Outside Director (audit and supervisory member) of B-Lot Company Limited
    Outside Auditor, SECURE, Inc.(current position)
    2021 Representative partner, TridentLaw Legal Professional Corporation (current position)
  • Takeshi Okuyama

    Outside Auditor Takeshi Okuyama

    Career Summary

    2002 Joined the Legal Training and Research Institute of Japan under the Supreme Court
    2003 Registered as a lawyer (Daini Tokyo Bar Association)
    Joined Mori Hamada & Matsumoto
    2011 Partner, Mori Hamada & Matsumoto (current position)
    2014 Associate Professor, Waseda Law School
    2019 Outside Auditor, SEPTENI HOLDINGS CO.,LTD. (current position)

Executive Officers

  • Koki Sato

    Group President and
    Chief Executive Officer (Group CEO)     Koki Sato

  • Isamu Ueno

    Group Senior Executive Officer Isamu Ueno

  • Tadahiro Matsuda

    Group Senior Executive Officer Tadahiro Matsuda

  • Yusuke Shimizu

    Group Senior Executive Officer Yusuke Shimizu

  • Yuichi Kono

    Group Senior Executive Officer Yuichi Kouno

  • Kei Hatano

    Group Senior Executive Officer Kei Hatano

  • Teruyuki Noguchi

    Group Executive Officer Teruyuki Noguchi

  • Kana Setoguchi

    Group Executive Officer Kana Setoguchi

  • Masayuki Muto

    Group Executive Officer Masayuki Muto

  • Daisuke Suefuji

    Group Executive Officer Daisuke Suefuji

  • Masayuki Takano

    Group Executive Officer Masayuki Takano

  • Yusuke Fukuhara

    Group Executive Officer Yusuke Fukuhara

  • Yuki Fukunishi

    Group Executive Officer Yuki Fukunishi

  • Tei Go

    Group Executive Officer Tei Go

  • Shuhei Ezaki

    Group Executive Officer Shuhei Ezaki

  • Yuta Suzuki

    Group Executive Officer Yuta Suzuki

  • Kazunari Kondo

    Group Executive Officer Kazunari Kondo