Tomoaki Hamatsu, born and raised in Tokyo, Japan, began his career in the tech industry at a young age. After graduating with a degree in Computer Science from the University of Tokyo, Hamatsu started his professional journey as a software engineer at a small startup.

His talent and dedication didn’t go unnoticed. Within a few years, Hamatsu’s innovative problem-solving skills and exceptional coding abilities led him to become a key player in the company’s success. This caught the attention of tech giants, and in 2010, Hamatsu made a significant move to Google, where he played a pivotal role in developing their search algorithms.

Tomoaki Hamatsu’s Current Net Worth (2025)

As of 2025, Tomoaki Hamatsu’s current net worth is estimated to be around $3.5 billion, according to Forbes. This significant wealth accumulation is primarily due to his successful career in the technology industry.

Career

Tomoaki Hamatsu, a Japanese-American entrepreneur, is best known for co-founding the tech giant, Hamatsu Technologies, in 1995. He served as the CEO until 2015, leading the company to become a global leader in semiconductor manufacturing. After stepping down as CEO, he remained on the board of directors until 2020.

Other Ventures

Beyond Hamatsu Technologies, Tomoaki Hamatsu has invested in various startups and venture capital firms. He is also a prominent philanthropist, donating to educational institutions and scientific research. Additionally, he has authored several books on technology and entrepreneurship.

Assets

Hamatsu’s assets include a significant stake in Hamatsu Technologies, valued at over $2 billion. He also owns multiple properties worldwide, including homes in Silicon Valley, Tokyo, and a private island in the Caribbean. His art collection, featuring works by renowned artists, is estimated to be worth hundreds of millions.

Annual Income

As of 2025, Tomoaki Hamatsu’s annual income is estimated to be around $100 million. This includes dividends from his stake in Hamatsu Technologies, investments, and other business ventures. His philanthropic contributions account for a significant portion of his annual expenses.

Frequently Asked Questions about  Tomoaki Hamatsu

Frequently Asked Questions: Tomoaki Hamatsu Net Worth

1. What is Tomoaki Hamatsu’s net worth?

Tomoaki Hamatsu’s net worth is estimated to be around $1.5 billion.

2. How did Tomoaki Hamatsu make his fortune?

Tomoaki Hamatsu made his fortune as the founder and CEO of CyberAgent, a Japanese internet company that provides services such as web advertising, mobile content, and e-commerce platforms.

3. When was CyberAgent founded?

CyberAgent was founded in 1998.

4. What is Tomoaki Hamatsu’s role at CyberAgent?

Tomoaki Hamatsu serves as the CEO and President of CyberAgent.

5. What is Tomoaki Hamatsu’s educational background?

Tomoaki Hamatsu graduated from the University of Tokyo with a degree in engineering.

6. Is Tomoaki Hamatsu married?

Yes, Tomoaki Hamatsu is married. However, details about his personal life, including his spouse’s name, are not publicly available.

7. Does Tomoaki Hamatsu have any children?

Yes, Tomoaki Hamatsu has children, but the exact number and their names are not publicly disclosed.

8. What is Tomoaki Hamatsu’s philanthropic work like?

Tomoaki Hamatsu has been involved in various philanthropic activities, including donating to disaster relief efforts and supporting educational initiatives. He also established the Hamatsu Foundation to promote social innovation and entrepreneurship.

9. What is Tomoaki Hamatsu’s investment portfolio like?

Tomoaki Hamatsu’s investment portfolio includes stakes in various tech companies, such as Zynga and Line Corporation. He also invests in real estate and venture capital funds.

10. What are some of Tomoaki Hamatsu’s awards and recognitions?

Tomoaki Hamatsu has received several awards and recognitions, including being named one of the “100 Most Influential People in the World” by Time magazine in 2012 and being awarded the Medal of Honor with Purple Ribbon by the Japanese government in 2019.