Law firms in Japan

Miura & Partners

Japan

Miura & Partners was founded in January 2019 by Ryota Miura and a team of experienced lawyers. The firm provides broad corporate legal services for domestic and cross-border matters — including M&A, joint ventures, finance and financial regulation, competition/antitrust, intellectual property, litigation, international trade, fintech, blockchain, technology and healthcare — and serves clients internationally; it reports 73 partners and 144 lawyers.

Morgan, Lewis & Bockius, LLP

Belgium, China +9

Morgan, Lewis & Bockius LLP is a global law firm with offices across North America, Europe, Asia, and the Middle East. The firm provides corporate, transactional, litigation, regulatory, intellectual property, labor and employment, finance, and related services to clients ranging from multinational companies to startups.

Mori Hamada & Matsumoto Shanghai Office

China, Japan +4

Mori Hamada & Matsumoto is a Tokyo‑headquartered international law firm with a strong presence across Asia, including offices and affiliated firms in China (Beijing and Shanghai), Myanmar, Singapore, Thailand and Vietnam. The firm provides full‑service cross‑border legal advice covering corporate and M&A, banking and finance, project finance, real estate, dispute resolution, regulatory and compliance (including antitrust and data protection) and intellectual property, and its China practice has operated since the early 1990s (Beijing office opened in 1998; Shanghai in 2005).

Morrison Foerster

China, Japan +2

Morrison Foerster is a global law firm with approximately 1,000 lawyers across 18 offices, serving clients in the United States, Asia, and Europe. The firm handles cross-border transactions, major disputes, and provides counsel in areas such as capital markets, dispute resolution, banking and finance, and technology and life sciences.

Nagashima Ohno & Tsunematsu Shanghai Representative Office

China, Japan +4

Nagashima Ohno & Tsunematsu is a Tokyo-based international full-service law firm with an extensive overseas network and over 600 lawyers. The Shanghai Representative Office serves as a China-based point of contact advising on Japanese law and supporting Chinese companies considering investments in or cooperation with Japanese entities.

Nishimura & Asahi

Japan

Nishimura & Asahi is a Japanese law firm with offices across Japan, including Tokyo, Osaka, Nagoya, Fukuoka and Sapporo. The firm maintains a national presence with contact details and office addresses listed for each city.

Norton Rose Fulbright

Australia, Belgium +24

Norton Rose Fulbright is a global law firm providing a full business law service to corporations and financial institutions across more than 50 cities worldwide. The firm has offices and alliances in multiple jurisdictions across Europe, the Americas, Asia, Australia, Africa and the Middle East.

Ogier

British Virgin Islands, Cayman Islands +8

Ogier is an international law firm providing advice on BVI, Cayman, Guernsey, Irish, Jersey and Luxembourg law, with offices across Europe, Asia and the Middle East. Its work focuses on corporate and financial sector matters, including banking and finance, corporate, investment funds, dispute resolution, private equity, private wealth, restructuring and insolvency, and related services.

Oh-Ebashi LPC & Partners

Japan

Oh-Ebashi LPC & Partners is a full-service Japanese law firm with over 160 attorneys and main offices in Tokyo and Osaka. Founded in Osaka in 1981, the firm operates from four locations (including Nagoya) and was the first Japanese law firm to open an office in China.

Okabe & Yamaguchi is a Japan-based law firm. The firm lists 10 lawyers and indicates services are available in Japanese and English.

One Asia Lawyers

Japan

One Asia Lawyers Group is a network of independent law firms providing legal advice on the laws of ASEAN countries, South Asia and Oceania. One Asia Lawyers (One Asia法律事務所) is the group's member firm in Japan and works with member firms across the region to deliver cross-border and regional legal services in areas including mergers and acquisitions, finance, real estate and employment.

Orrick, Herrington & Sutcliffe LLP

China, France +8

Orrick, Herrington & Sutcliffe LLP is a global law firm focused on serving clients in the technology & innovation, energy & infrastructure, and finance sectors. The firm provides legal services including M&A, private equity, capital markets, intellectual property, dispute resolution, and regulatory compliance across multiple jurisdictions.

PwC Legal Japan

Japan

PwC Legal Japan, established in 2014 as a member law firm of the PwC global network, provides legal services focused on general corporate and M&A, restructuring, and commercial agreements. Backed by PwC’s global network (more than 4,000 lawyers in 100+ countries), the firm delivers integrated domestic and cross-border legal services in collaboration with PwC Japan Group and overseas member firms.

Quinn Emanuel Urquhart & Sullivan, LLP

Australia, Belgium +11

Quinn Emanuel Urquhart & Sullivan, LLP is an international law firm with offices across North America, Europe, the Middle East, and Asia-Pacific. The directory pages shown emphasize rankings and office locations in multiple jurisdictions.

Ropes & Gray LLP

China, Japan +3

Ropes & Gray is a global law firm with offices in key business and financial centers throughout Asia, the U.S., and Europe, advising corporate clients, investment banks, and private equity funds on complex legal matters.

SUGIMURA & Partners

Japan

SUGIMURA & Partners is a leading Japanese intellectual property law firm, founded in 1923 and relaunched as SUGIMURA & Partners on 1 March 2017. The firm represents domestic and international clients in patent, design and trademark prosecution, trial and appeal proceedings before the JPO, counseling and opinions, due diligence, unfair competition, litigation and dispute resolution, and maintains offices in Japan and the United States.

Sidley Austin

Australia, Belgium +8

Sidley Austin is an international law firm with more than 2,300 lawyers across 21 offices worldwide. The firm has offices in Asia Pacific, Europe, the Middle East, and the United States, and advises clients across a range of transactional, regulatory, and litigation matters.

Simmons & Simmons

Belgium, China +14

Simmons & Simmons is an international law firm that describes itself as collaborative, agile, and partner-led, with a focus on highly regulated sectors and complex cross-border matters. The firm has offices and associated locations across Europe, Asia, and the Middle East.

Simpson Thacher & Bartlett LLP

Brazil, China +3

Simpson Thacher & Bartlett LLP is a global law firm with approximately 1,500 lawyers, providing coordinated legal advice and transactional capability across over 30 practice areas from 11 offices worldwide. The firm is recognized for its work in complex corporate transactions and litigation matters.

So & Sato Law Offices

Japan

So & Sato Law Offices is a boutique Tokyo-based firm founded in 2015 that advises domestic and international corporate clients on transactions and complex matters, with particular experience in finance, investment funds, venture business, M&A, joint ventures and crisis management, and deep knowledge of advanced technologies such as blockchain, virtual currency, artificial intelligence and robotics.

TMI Associates

Japan

TMI Associates is one of Japan’s largest law firms, with more than 770 attorneys, patent attorneys, foreign lawyers and other professionals. The firm advises domestic and international clients across a broad range of transactional, regulatory, intellectual property and dispute-resolution matters, and serves industries including life sciences, technology, banking, retail, media and renewable energy.

Tokyo International Law Office

Japan

Tokyo International Law Office (TKI) is a full-service law firm founded in 2019 that expanded rapidly from an initial five attorneys and operates offices in Tokyo and Singapore. The firm advises domestic and international clients on M&A, cross-border transactions, international disputes and sector-specific regulatory matters, with industry strengths in automotive, energy and infrastructure, healthcare and life sciences, financial services and Web3.

Ushijima & Partners is a full-service Japanese law firm, founded in 1985 by Shin Ushijima, with 66 attorneys. The firm advises domestic and international clients (and Japanese clients overseas) across a broad range of industries and is noted for strengths in corporate/M&A, real estate and securitisation, insurance, intellectual property and technology, employment, and trusts and estates; it participates in international alliances such as Multilaw, ELA and LAW.

Vanguard Lawyers Tokyo

Japan

Vanguard Lawyers Tokyo provides Japanese legal services to multinational clients, focusing on labour and employment law, dispute resolution and investigations, and corporate matters. The firm advises on complex and high-profile mandates and emphasizes proactive, practical solutions for global clients operating in Japan.