Department profile
FinTech Legal
FinTech Guide 2026 : Japan
Rankings
Ranked Individual
Ranked Individual
About
Provided by Nagashima Ohno & Tsunematsu
Our lawyers specializing in various practice areas such as financial regulations, technology, intellectual property, M&A, and venture capital and start-ups collaborate to provide one-stop legal services to Fintech companies, financial institutions, financial service intermediaries, venture capital companies, IT companies, other operating companies, and other parties in FinTech. These services range from structuring business models for FinTech company formation and expansion, to obtaining licenses and approvals, dealing with authorities, and investing in, acquiring, and establishing business alliances with FinTech companies.
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Chambers Review
Provided by Chambers
Strengths
Provided by Chambers
Nagashima Ohno & Tsunematsu's service level is always high and its responses are always quick.
FinTech Legal respondentFinTechThe firm is familiar with financial services that utilise blockchain technology and has a high level of ability to consider new products and services and disseminate appropriate opinions.
FinTech Legal respondentFinTechNagashima Ohno & Tsunematsu understands both new technologies such as blockchain and existing legal systems.
FinTech Legal respondentFinTech
Notable Practitioners
Provided by Chambers
Band 3 
Band 3 Keiji Tonomura
Keiji Tonomura advises on financial regulatory matters relating to Web3 projects including stablecoins, security tokens and blockchain infrastructure.
Mr. Keiji Tonomura is a great thought partner to our organisation.
FinTech Legal respondentFinTech
Ranked Individuals at Nagashima Ohno & Tsunematsu (1)
Japan
Keiji Tonomura
FinTech Legal
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Members
Provided by Nagashima Ohno & Tsunematsu
Keiji Tonomura
View profile of Keiji Tonomura
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