Koichiro Tsujino

Active Investor

Founder & CEO at Alex

Tokyo, Tokyo

Koichiro Tsujino, Founder & CEO at Alex is an active investor based in Tokyo, Tokyo. This profile covers what Koichiro Tsujino backs, at which stage, and how founders can reach out in 2026.

Mr. Koichiro Tsujino is an Angel Investor. Born in 1957 in Fukuoka Prefecture. He also serves as an Outside Director at SMBC Nikko Securities. Graduated from Keio University's Graduate School of Engineering in 1984 and entered Sony Corporation in the same year. Through the company's overseas study program, went to the United States to study at California Institute of Technology's Department of Electrical Engineering. After resigning from Sony in March 2006, joined Google in 2007 and was appointed president of Google Japan in January 2009. Resigned in April 2010 to establish ALEX Corporation with like-minded members. Currently serving as representative director, president and CEO of ALEX Corporation.

Investor type: Angel
Stages: Early Stage Venture
Invests in: Mobility & LogisticsAutomotive & EV
Location: Tokyo, Tokyo
Typical check: $500K
Past investments: 2

Notable investments

Terra ChargeGoogle Japan Inc.

How to reach Koichiro Tsujino

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Frequently Asked Questions

What does Koichiro Tsujino invest in?

Koichiro Tsujino invests in Mobility & Logistics and Automotive & EV, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.