![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
Founder at
DENA CO., LTD.
Net worth: 332 M $ as of 30/05/2026
Profile
Tomoko Namba is the founder of DeNA Co., Ltd., founded in 1999, serving as Chairman since 2015.
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% | 29/09/2025 | 19,826,000 ( 16.23% ) | 332 M $ | 30/05/2026 |
Tomoko Namba active positions
| Companies | Position | Start |
|---|---|---|
| DENA CO., LTD. | Founder | 03/03/1999 |
Yokohama DeNA BayStars Baseball Club, Inc.
 Yokohama DeNA BayStars Baseball Club, Inc. Movies/EntertainmentConsumer Services Owns and operates professional baseball team | Director/Board Member | 31/12/2014 |
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 | 31/12/2018 |
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
81
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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