Combining years of experience in the field of corporate deals and capital markets with an in-depth understanding of new technologies we are uniquely positioned to develop innovative solutions for our clients.
The FinTech industry is without doubt one of the most dynamic industries globally. Sitting at the intersection between traditional finance and technology it is also one of the most complex regulatory areas. We enjoy working in this environment and are consistently ranked among the top FinTech lawyers in Japan.
Mergers and acquisitions are key strategies for companies to stimulate growth, gain a competitive advantage and increase their market share. We assist our clients in structuring their deals, setting up joint ventures and help them with their general corporate matters. Our clients range from early stage start-ups to established national and international players.
Our lawyers have worked for leading law firms in the US, UK, Hong Kong and Singapore for many years and have a wealth of experience in debt and equity issues, derivatives and structured products. Having a strong foothold in FinTech, we are further ideally positioned to help our clients to stay ahead of the curve and to drive financial innovation.
Our services cover the whole lifecycle of funds and range from the structuring and formation to capital raising, investment, operation management, and liquidations. We further assist foreign funds with their regulatory matters and portfolio investments in Japan.
Companies developing or deploying cutting-edge technologies do not only require specialized knowledge of the respective technologies but also an in-depth understanding of the legal risks and the regulatory environment. Our lawyers constantly expand their knowledge to stay ahead of the curve and advise clients on matters relating to product regulation, IP and personal data protection.
Asia Business Law Journal
Awarded in the “Technology, Media & Telecommunications” category in 2023 Japan Law Firm Awards
Awarded in the “FinTech” and “Technology, Media & Telecommunications” categories in Japan Law Firm Awards (2024–2025)
Best Lawyers
So Saito:
Recognized for Financial Institution Regulatory Law and FinTech Practice (2021–2023)
Recognized for Banking and Finance Law, Financial Institution Regulatory Law, and FinTech Practice (2024–2026)
Yuki Sato: Recognized for Corporate and Mergers and Acquisitions Law (2022–2026)
Chambers & Partners
So Saito has been ranked as a Top FinTech Lawyer from 2019 to 2026.
Legal 500 Asia Pacific
Our firm received high recognition in the “FinTech” and “Investment Funds” categories.
So Saito: Leading Individual in the “FinTech” category (2022–2026)
Yuki Sato: Recognized in the “Investment Funds” category (2022–2026)
We are pleased to have contributed to Volume XIV of the International Journal of Blockchain Law (IJBL), published by Global Blockchain Business Council (GBBC). Find our article on Digital Asset Treasuries on pages 19-21. Check it out for free here:
We are pleased to announce that Yuki Sato was named as a Thomson Reuters Stand-out Lawyer.
This credential is awarded to lawyers who have been independently nominated by clients for their exceptional service and legal expertise. This year’s recognition highlights Yuki’s ability to deliver accurate, high-quality advice and practical solutions.
We remain dedicated to providing our clients with the highest level of professional legal support.
Our firm has been selected as a ”Leading Firm” by Legal 500 in FinTech 2026 in Japan. Mr. So Saito also was selected as “Leading Partner” in FinTech respectively.
So Saito and Shimpei Asano of our firm comments were published in Kinzai Weekly No. 3624.
We are pleased to announce that Marunouchi office has relocated to a larger space on the 8th floor (Suite 842) of the same building to support our business growth and organizational expansion.
Operations will commence at our new office on Monday, February 16, 2026.
This expansion allows us to enhance our operations and provide even more responsive and seamless service to our valued clients. Our entire team is committed to meeting your expectations in this new environment.
We look forward to welcoming you to our new office whenever you are in the area.
New Address:
Suite 842, 8F Shin-Kokusai Building, 3-4-1 Marunouchi, Chiyoda-ku, Tokyo
Phone: 03-6275-6980 (No change to the phone number)
Yu Mizushima spoke at SBI Center for Financial and Economic Research “Legal Affairs in the Quantum Computing Era”.
Yu Mizushima spoke at Business+IT's “Legal Affairs in the Quantum Computing Era: Legal Issues in Cybersecurity, National Security, and Practical Responses to Post-Quantum Cryptography".
So Saito spoke at Lisse Co., Ltd."How AI works and the forefront of corporate applications".
So Saito spoke at IOSCO Fintech Task Force (FTF) “Security Token in Japan”.
So Saito spoke at Liberal Democratic Party’s Parliamentarians for Blockchain Promotion “Crypto Assets and Securities Regulation”.