![Masatoshi Kumagai](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Masatoshi Kumagai
Chief Executive Officer at
GMO INTERNET GROUP, INC.
Net worth: 923 M $ as of 31/05/2026
Profile
Founder of GMO Internet, Inc., Masatoshi Kumagai is a businessperson who has been at the helm of 14 different companies and occupies the position of Chairman of GMO Payment Gateway, Inc. and Chairman, President & Group Representative at GMO Internet, Inc., Chairman of GMO AD Partners, Inc., Chairman at GMO Pepabo, Inc., Chairman of GMO Research, Inc., Chairman of GMO Media, Inc., Chairman for GMO GlobalSign Holdings KK, Chairman at GMO Gamepot Inc., Chairman for GMO TECH, Inc., President at GMO Venture Tsushin Startup Support Co. Ltd. and President & Representative Director at GMO AD HOLDINGS KK (which are all subsidiaries of GMO Internet, Inc.). Mr. Kumagai is also on the board of GMO NIKKO, Inc. and GMO Solution Partner, Inc. In the past Masatoshi Kumagai held the position of Chairman & President for GMO VenturePartners, Inc., Chairman of JWord Co., Ltd. and Chief Executive Officer for GMO CLICK Securities, Inc.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
GMO INTERNET GROUP, INC. 41.65% | 27/02/2026 | 44,707,511 ( 41.65% ) | 923 M $ | 31/05/2026 |
Masatoshi Kumagai active positions
| Companies | Position | Start |
|---|---|---|
| GMO INTERNET, INC. | Chairman | 30/03/2016 |
| GMO PAYMENT GATEWAY, INC. | Chairman | 01/12/2004 |
| GMO INTERNET GROUP, INC. | Chief Executive Officer | 20/03/2022 |
| GMO PEPABO, INC. | Chairman | 01/03/2004 |
| GMO GLOBALSIGN HOLDINGS K.K. | Chairman | 01/08/2001 |
| GMO PRODUCT PLATFORM, INC. | Chairman | 01/04/2002 |
| GMO MEDIA INC. | Chairman | 01/03/2004 |
GMO DigiRock, Inc. | Chairman | - |
GMO Venture Tsushin Startup Support Co. Ltd.
 GMO Venture Tsushin Startup Support Co. Ltd. Investment ManagersFinance GMO Venture Tsushin is an active manager which invests in companies located in Japan. It participates in early-stage transactions and focuses on sectors such as commercial services. | President | 30/01/2014 |
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Former positions of Masatoshi Kumagai
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Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
40
1st degree connections
20
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 20 |
|---|---|
GMO Payment Gateway, Inc.
 GMO Payment Gateway, Inc. Finance/Rental/LeasingFinance Operates as a payment agency that provides credit cards, financial and settlement activation services | Finance |
GMO AD Partners, Inc.
 GMO AD Partners, Inc. Advertising/Marketing ServicesCommercial Services Offers internet advertising solutions | Commercial Services |
GMO NIKKO, Inc.
 GMO NIKKO, Inc. Advertising/Marketing ServicesCommercial Services Operates as an internet advertising company | Commercial Services |
GMO Pepabo, Inc.
 GMO Pepabo, Inc. Internet Software/ServicesTechnology Services Provides server hosting services | Technology Services |
Nexyz.Group Corp.
 Nexyz.Group Corp. Wholesale DistributorsDistribution Services Sells energy saving equipment and provides advertising, electronic magazines, web media management and electricity retail services | Distribution Services |
GMO Internet Group, Inc.
 GMO Internet Group, Inc. Information Technology ServicesTechnology Services Provides services in internet infrastructure development and internet advertisement | Technology Services |
JWord Co., Ltd.
 JWord Co., Ltd. Packaged SoftwareTechnology Services Develops and markets keyword search software | Technology Services |
GMO Media, Inc.
 GMO Media, Inc. Advertising/Marketing ServicesCommercial Services Provides online information and digital advertising services | Commercial Services |
GMO GlobalSign Holdings KK
 GMO GlobalSign Holdings KK Information Technology ServicesTechnology Services Provides information technology and software development services | Technology Services |
GMO Gamepot, Inc.
 GMO Gamepot, Inc. Packaged SoftwareTechnology Services Engages in the online game and mobile content businesses | Technology Services |
Why How Do Co., Inc.
 Why How Do Co., Inc. Packaged SoftwareTechnology Services Develops software and operates restaurants & provides educational services | Technology Services |
GMO CLICK Securities, Inc.
 GMO CLICK Securities, Inc. Investment Banks/BrokersFinance Provides online securities brokerage services | Finance |
GMO VenturePartners, Inc.
 GMO VenturePartners, Inc. Investment ManagersFinance GMO VenturePartners invests in companies located in Japan, India, the United States and Southeast Asia. The firm targets companies operating in the fintech sector. It provides financing for seed, early and growth stage capital requirements. | Finance |
GMO AD HOLDINGS KK
 GMO AD HOLDINGS KK Advertising/Marketing ServicesCommercial Services Provides advertising services via the internet | Commercial Services |
Nexyz. Corp. (New)
 Nexyz. Corp. (New) Electrical ProductsProducer Manufacturing Produces LED lights | Producer Manufacturing |
GMO Solution Partner, Inc.
 GMO Solution Partner, Inc. Information Technology ServicesTechnology Services Provides website promotion and operations support business | Technology Services |
GMO Venture Tsushin Startup Support Co. Ltd.
GMO Venture Tsushin Startup Support Co. Ltd. Investment ManagersFinance GMO Venture Tsushin is an active manager which invests in companies located in Japan. It participates in early-stage transactions and focuses on sectors such as commercial services. | Finance |
GMO Research & AI, Inc.
 GMO Research & AI, Inc. Miscellaneous Commercial ServicesCommercial Services Provides internet research services | Commercial Services |
GMO TECH, Inc.
 GMO TECH, Inc. Miscellaneous Commercial ServicesCommercial Services Provides search engine optimization solutions | Commercial Services |
GMO DigiRock, Inc. |
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