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Corporate Information

Company Name GMO Internet, Inc.
Established May 24, 1991
Head Office Cerulean Tower 4-14F, 26-1 Sakuragaokacho, Shibuya ku, Tokyo, JAPAN

Investor Relations:
Fax: +81-3-5456-2556
Corporate Site:
Investor Relations Site:
Business Segments Internet Infrastructure
Online Advertising & Media
Internet Finance
Capital JPY 5.0 billion(as of 3/2018)
Stock Exchange Tokyo Stock Exchange : First Section
Stock Code 9449
Board of Directors

Founder & Group CEOMasatoshi Kumagai
Chief Financial OfficerMasashi Yasuda
Chief Operating OfficerHiroyuki Nishiyama
Managing DirectorIssei Ainoura
Managing DirectorTadashi Ito
Managing DirectorHirofumi Yamashita
Executive DirectorToshiaki Horiuchi
Executive DirectorKatsumi Arisawa
Board of DirectorsTeruhiro Arai
Board of DirectorsKentaro Sato
Board of DirectorsKimihiro Kodama
Board of DirectorsMasamitsu Nomura
Board of DirectorsIchiro Chujo
Board of DirectorsMakoto Hashiguchi
Board of DirectorsAtsuko Fukui
Board of Directors Audit CommitteeMasahiro Muto
Board of Directors Audit CommitteeKeigo Ogura
Board of Directors Audit CommitteeTakashi Gunjikake
Board of Directors Audit CommitteeKaname Masuda
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    Fujio Maruyama

    Technology Advisor
    (Japan Android Group, Honorary chairman
    Marulec+MaruLabo, representativ)

    Born in Odate City, Akita Prefecture. Graduated from Tokyo University, Education Faculty. Doctorate in Social Science Research, Hitotsubashi University, Wakkanai Hokusei Gakuen University, Professor. Wakkanai Hokusei Gakuen University, first president. Waseda University, Information Production Systems Research, Professor
    Doctorate in Social Science Research, Hitotsubashi University
    Future University Hakodate, Information Faculty Professor (Special Appointment)
    Japan Java Users Group, Founding Chairman. Japan Android Group, Founding Chairman. Cloud Research, representativ

    Hideyuki Negoro

    Special Advisor
    (Born in Tokyo, Doctor, Doctor of Medicine)

    Academic History   Associate professor at the Harvard University Medical Faculty, University of Paris Medical Faculty, and University of Milan, Board Member and Professor at the Graduate School of Project Design.
    Affiliation and
    Advisory Roles
      Internal Medicine Specialist - Japanese Society of Internal Medicine, Advisor - Japanese Society of Anti-Aging Medicine, Advisor on Japan - American Academy of Anti-Aging Medicine, Advisor - Tokyo Marine Nichido, Advisor - Dentsu.
        Doctor Negoro's specializations include internal medicine, anti-aging medicine, gene therapy,longevity gene therapy, and aesthetic internal medicine. Conducting research at 5 universities worldwide, Doctor Negoro is active in world leading clinical research and medical training. He is also the author of several best-selling books including Shintai Kakumei - Sekai Saisentan Anti-Aging Hosoku (The Body Revolution - World Leading Antiaging Techniques) and Netteiru Uchi ni Byoki ni Naranai Karada wo Tsukuru Hon (Building defense against sickness while you sleep), both published by Kadogawa Marketing.

    Masakazu Iwakura

    Special Advisor

    April 1987 Dai-ichi Tokyo Bar Association registration Joined Nishimura Law Office (now Nishimura & Partners).April 2004 Professor, Law Faculty, Hitotsubashi University.April 2006 Professor, Graduate School of International Corporate Strategy, Hitotsubashi University.June 2011 Appointed External Auditor, Imperial Hotel.

    Motohide Yoshikawa

    Special Advisor

    Graduated from the International Christian University(ICU)College of Liberal Arts.
    Joined the Ministry of Foreign Affairs in 1974.
    Served at Spain, Argentina, United Kingdom, OECD(Paris), Thailand and United Nations(NY), and held such posts as Director-General of the Middle Eastern and African Affairs Bureau of the Ministry, Ambassador to Spain, Special Representative for Afghanistan and Pakistan,Ambassador to the OECD and Ambossador to the United Nations.Retired from Diplomatic Service in 2016.Distinguished Professor at the ICU from 2017.
    Speaks Japanese,English,Spanish and French.
Full-time employees Contract employees Total
4,777 677 5,454
(Total group employees as of end of 3/2018)
Affiliations IA Japan - Internet Association Japan
ICANN - Internet Corporation for Assigned Names and Numbers
JAIPA - Japan Internet Providers Association
Japan Association of New Economy
JPNIC - Japan Network Information Center
Metropolitan Police Department - High Tech Crime Prevention Association
Trading Banks Aozora Bank (Headquarters)
Bank of Tokyo-Mitsubishi UFJ (Shibuya Branch)
Mitsubishi UFJ Trust and Banking (Headquarters)
Mizuho Bank (Shibuya Branch)
Resona Bank (Shibuya Branch)
Sumitomo Mitsui Banking Corporation (Shibuya-ekimae Branch)

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