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So & Sato Law Offices

Tokyo law firm advising on fintech, M&A, capital markets, and emerging technology.

🇯🇵 Tokyo · Founded 2015

FinTech & blockchainMergers & acquisitionsCapital marketsInvestment fundsTechnology law
innovationlaw.jp/en ↗

So & Sato Law Offices is a boutique law firm based in Tokyo, Japan. It began in 2015 as So Law Office and became So & Sato Law Office after a merger in 2019. The firm advises on fintech and blockchain, mergers and acquisitions, capital markets, investment funds, and emerging technologies such as AI and IoT, from offices in Akasaka and Marunouchi, Tokyo.

Open to

  • Hiring

Services

Service

FinTech & Blockchain Advisory

Who it's for: Crypto, DeFi, and payment service businesses

  • Crypto assets and security tokens
  • DeFi and open banking
  • Payment services regulation
Service

M&A & Corporate

Who it's for: Startups and corporates

  • Private and public M&A
  • Joint ventures
  • General corporate matters
Service

Capital Markets & Investment Funds

Who it's for: Issuers, fund managers, and investors

  • IPOs and securitization
  • Private equity and venture capital funds
  • Derivatives and structured products

Traction

Updated Oct 2026

Recognized by Best Lawyers and Chambers & Partners for FinTech work (2019-2026), and by the Asia Business Law Journal for Technology, Media & Telecommunications (2023-2025).