![Tomoko Namba](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>)
Tomoko Namba
Chief Executive Officer at
DENA CO., LTD.
Net worth: 332 M $ as of 31/05/2026
Profile
Tomoko Namba is the founder of DeNA Co., Ltd., founded in 1999, serving as President & Chief Executive Officer since 2026.
Ms. Namba is the founder of Delight Venture Investment KK, founded in 2019, serving as Managing Partner since 2019.
Ms. Namba is currently a Director at Yokohama DeNA BayStars Baseball Club, Inc. since 2015.
Former jobs include Chairman at DeNA Global, Inc., President & Representative Director at Mobaoku Co., Ltd., and Partner at McKinsey & Co. (Japan).
Education includes an MBA from Harvard University, conferred in 1990.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
DENA CO., LTD. 16.23% | 30/09/2025 | 1,98,26,000 ( 16.23% ) | 332 M $ | 31/05/2026 |
Tomoko Namba active positions
| Companies | Position | Start |
|---|---|---|
| DENA CO., LTD. | Chief Executive Officer | 27/06/2026 |
Yokohama DeNA BayStars Baseball Club, Inc.
 Yokohama DeNA BayStars Baseball Club, Inc. Movies/EntertainmentConsumer Services Owns and operates professional baseball team | Director/Board Member | 01/01/2015 |
Delight Venture Investment KK
 Delight Venture Investment KK Investment ManagersFinance Delight Venture Investment is an active manager which provides financing for pre-seed stage, seed stage, and early stage capital requirements. The firm targets companies operating in various sectors. | Founder | 01/01/2019 |
Former positions of Tomoko Namba
| Companies | Position | End |
|---|---|---|
Mobaoku Co., Ltd.
 Mobaoku Co., Ltd. Catalog/Specialty DistributionRetail Trade Operates an online auction website | President | - |
DeNA Global, Inc.
 DeNA Global, Inc. Packaged SoftwareTechnology Services Provides and owns mobile social networking programs | Chairman | - |
McKinsey & Co. (Japan)
 McKinsey & Co. (Japan) Miscellaneous Commercial ServicesCommercial Services Provides management consulting services | Corporate Officer/Principal | - |
Training of Tomoko Namba
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
77
1st degree connections
7
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 7 |
|---|---|
Harvard University
 Harvard University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
DeNA Co., Ltd.
 DeNA Co., Ltd. Packaged SoftwareTechnology Services Develops and operates mobile and online services includes games, e-commerce and entertainment content distribution | Technology Services |
McKinsey & Co. (Japan)
McKinsey & Co. (Japan) Miscellaneous Commercial ServicesCommercial Services Provides management consulting services | Commercial Services |
DeNA Global, Inc.
DeNA Global, Inc. Packaged SoftwareTechnology Services Provides and owns mobile social networking programs | Technology Services |
Mobaoku Co., Ltd.
Mobaoku Co., Ltd. Catalog/Specialty DistributionRetail Trade Operates an online auction website | Retail Trade |
Yokohama DeNA BayStars Baseball Club, Inc.
Yokohama DeNA BayStars Baseball Club, Inc. Movies/EntertainmentConsumer Services Owns and operates professional baseball team | Consumer Services |
Delight Venture Investment KK
Delight Venture Investment KK Investment ManagersFinance Delight Venture Investment is an active manager which provides financing for pre-seed stage, seed stage, and early stage capital requirements. The firm targets companies operating in various sectors. | Finance |
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