Mori Hamada & Matsumoto
A leading full-service international law firm headquartered in Tokyo, Japan, tracing its origins to a predecessor firm established in 1949.
Last updated September 15, 2026
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Overview
Mori Hamada & Matsumoto is a full-service international law firm based in Tokyo, Japan. Its history traces back to the establishment of Mori Ryosaku Law Office in Tokyo in 1949, which was reorganized as Mori Sogo Law Offices in 1971; Hamada & Matsumoto was established in Tokyo in 1975. The firm describes itself as maintaining and enhancing its reputation as a leading full-service international law firm, with numerous locations in Japan and overseas and a network with top law firms across the globe. Its stated mission is to create value for clients, provide a place of growth for professionals, and have a positive impact on the community. The firm has received numerous rankings and awards, including Band 1 rankings in Chambers High Net Worth 2026, top rankings in The Legal 500 Asia Pacific 2026 and Chambers Asia-Pacific 2026, and being named Asian Law Firm of the Year at the Asia Legal Awards 2025.
History
The firm's history traces back to 1949, when Mori Ryosaku Law Office was established in Tokyo. In 1971, it was reorganized as Mori Sogo Law Offices with four lawyers. In 1974, Chandler & Thong-ek was established in Bangkok. In 1975, Hamada & Matsumoto was established in Tokyo with three lawyers. In 1981, Matsuda Masayuki Law and Patent Office was established in Tokyo (reorganized as Max Law Offices in 1991). In 1987, Hamada & Matsumoto opened an office in London (closed in 1994). In 1998, Mori Sogo opened an office in Beijing. The firm states that throughout periods of great change since the establishment of its predecessor firm in 1949, it has continuously expanded and enhanced its practice areas to provide clients with outstanding and comprehensive service, and has always sought to have a positive impact on society at large.
Products and positioning
Leading full-service international law firm
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