Tatsuo Yamashima

4.6 (36 reviews )

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Antitrust / Competition Law Corporate Governance and Compliance Practice

Recognized in Best Attorney USA since 2020

81 3 5501 2111 Website

About Tatsuo

Tatsuo Yamashima is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust / Competition Law and Corporate Governance and Compliance Practice.Tatsuo, who practices law in Tokyo, Japan, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tatsuo is held by other top lawyers in the same geographic and legal practice area.

Tatsuo Yamashima is a top attorney recognized by Best Lawyers in the practice area(s) of Antitrust / Competition Law and Corporate Governance and Compliance Practice.

Tatsuo, who practices law in Tokyo, Japan, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tatsuo is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Antitrust / Competition Law

Corporate Governance and Compliance Practice

Education

The University of Tokyo

Professional Affiliations

Awards & Recognition

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Reviews

4.6 / 5

36 Reviews

1,053 Profile Views

Leon Jones

Feb 01, 2026

Top notch experts in null - Tatsuo Yamashima is by far the best lawyer I've ever had

Super helpful and professional staff at Tatsuo Yamashima's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and legal e...

Willard Lemke

Feb 01, 2026

Many thanks to Tatsuo Yamashima for the hard work and dedication to my legal matter

If you need a Antitrust / Competition Law lawyer, Tatsuo Yamashima is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my cas...

Orville Reynolds

Feb 01, 2026

Professional service and clear communication provided by Tatsuo Yamashima in null

It's hard finding a reliable lawyer these days, but Tatsuo Yamashima in null is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, responsive, a...

Joyce Zboncak

Feb 01, 2026

Simply amazing representation from Tatsuo Yamashima's office during my recent legal matter

If you're looking for someone who actually cares and will fight for you, go to Tatsuo Yamashima. They helped me out big time with my Antitrust / Competition Law issue and kept me informed at every ste...

Alvin Abshire

Feb 01, 2026

Would recommend Tatsuo Yamashima for sure to anyone in null needing legal help

Just wanted to say a huge thanks to Tatsuo Yamashima and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without their...

Tatsuo Yamashima

About Tatsuo