Tomoko Namba founded DeNA Co., Ltd. Ms. Namba is Chairman at this company and Managing Partner at Delight Venture Investment KK (a subsidiary of DeNA Co., Ltd.).

She is also on the board of Yokohama DeNA BayStars Baseball Club, Inc.

She previously occupied the position of Chairman for DeNA Global, Inc., President & Representative Director at Mobaoku Co., Ltd. and Partner at McKinsey & Co. (Japan).

Tomoko Namba received an MBA from Harvard University.