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Atsumi & Sakai

Atsumi & Sakai is a multi-award-winning, independent, full-service Tokyo law firm, and among the ten largest independent law firms in Japan. Expanding from its highly regarded finance practice, the firm now acts for a wide range of international and domestic companies, banks, financial institutions and other businesses, offering a comprehensive range of legal expertise, including:

Banking and Finance

Structured finance

Financial regulation

M&A, joint ventures and private equity

Real estate development and finance



Dispute resolution

Employment and benefits

Project Finance


TMT (Technology, media and telecommunication)

Life Science



Inward investment


International trade

IP/IT & data protection



Risk management/compliance/corporate governance





Atsumi & Sakai has an outward-looking approach to its international practice, and has a number of foreign partners and consultants with extensive experience from leading international law firms, so offering its clients the benefit of a combination of Japanese law expertise and real international experience. As the only independent Japanese law firm with a London office, it can also provide real-time advice on Japanese law to its clients in Europe, the Middle East and Africa, as well as providing a more convenient service to its clients in the Americas.

In addition to its core Japanese law practice, the firm can also advise on the laws of New York, California, England & Wales, India, the People’s Republic of China, the states of Queensland, Victoria (Australia), and US and Australian federal law, as well as the laws of the Federal Republic of Germany (in collaboration with Janssen Foreign Law Office).

Organisation Profile

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