Japan Practice

Recognized as the Top in the World

Jenner & Block has a rich history of nearly 40 years representing Japanese companies in various practice areas, including litigation matters, arbitration proceedings, investigations, antitrust cases, IP-related cases, M&A transactions, including acquisitions, dispositions, investments, joint ventures and other corporate and transaction matters. We have regularly worked side-by-side with Japanese clients and law firms to manage their legal challenges all across the United States.

Our Japan Practice was named “Japan Practice Foreign Law Firm of the Year” at the 2026 Asian Legal Business Japan Law Awards, having been repeatedly selected as a finalist. This recognition honors foreign law firms that demonstrate exceptional legal service and substantial work involving Japanese elements despite not having physical offices in Japan, among law firms all over the world, not just those in the United States.

Uniquely Qualified Partners Licensed in both the US and Japan

Our Japan Practice is led by several partners who have lived and worked in Japan, including the former Managing Partner of the firm and the co-founder of the firm’s Los Angeles office, as well as a partner who is admitted to practice law both in Japan (inactive) and the United States. Our team leverages extensive practical experience in both countries, native Japanese language skills, and deep understanding of the US and Japanese legal systems to assist clients from Japan.

Guiding Clients through the US Legal System

We understand that US legal processes and practices can be foreign to Japanese companies, quite different from the legal system and practices in Japan, and we understand the challenges faced by Japanese clients. Based on our experience representing Japanese companies and knowledge of Japanese business culture, we have developed unique skills to help Japanese companies navigate the US legal system and matters. We pride ourselves on being effective, responsive and efficient. When requested by clients or their Japanese counsel, our resident Japanese lawyers regularly communicate with and explain to Japanese companies, in Japanese, the unique features of the US legal system and proceedings to facilitate a better understanding of these legal intricacies and to ensure a fully informed decision-making process. Our approach and unique skill set benefits our Japanese clients.

Distinguished Service across Many Industries

A wide variety of Japanese companies conducting business worldwide seek our advice, including major electronics and electrical equipment manufacturing companies, multinational industry machinery manufacturers, banks and financial institutions, multinational trading companies (both sogo shosha and senmon shosha), multinational online retailing company, a leading furniture company, multinational retail chain of general merchandise and department stores, a leading clinical development contract research organization, pharmaceutical and biopharmaceutical companies; video game developers and distribution companies; major transportation companies; semiconductor companies; food companies; a major airline; a major advertising and public relations company; and an AI-related software developer, among others.

Invested in Deepening Client Relationships

Our team is regularly in Japan to support our clients. We also consistently host Japanese lawyers and legal managers in our offices in the US, as part of a decades-old attorney exchange program with law firms and corporate clients from Japan. We also have extensive experience in co-representing Japanese companies with Japanese law firms, and maintain close relationships with the most prominent Japanese firms.

Japan Practice

Recognized as the Top in the World

Jenner & Block has a rich history of nearly 40 years representing Japanese companies in various practice areas, including litigation matters, arbitration proceedings, investigations, antitrust cases, IP-related cases, M&A transactions, including acquisitions, dispositions, investments, joint ventures and other corporate and transaction matters. We have regularly worked side-by-side with Japanese clients and law firms to manage their legal challenges all across the United States.

Our Japan Practice was named “Japan Practice Foreign Law Firm of the Year” at the 2026 Asian Legal Business Japan Law Awards, having been repeatedly selected as a finalist. This recognition honors foreign law firms that demonstrate exceptional legal service and substantial work involving Japanese elements despite not having physical offices in Japan, among law firms all over the world, not just those in the United States.

Uniquely Qualified Partners Licensed in both the US and Japan

Our Japan Practice is led by several partners who have lived and worked in Japan, including the former Managing Partner of the firm and the co-founder of the firm’s Los Angeles office, as well as a partner who is admitted to practice law both in Japan (inactive) and the United States. Our team leverages extensive practical experience in both countries, native Japanese language skills, and deep understanding of the US and Japanese legal systems to assist clients from Japan.

Guiding Clients through the US Legal System

We understand that US legal processes and practices can be foreign to Japanese companies, quite different from the legal system and practices in Japan, and we understand the challenges faced by Japanese clients. Based on our experience representing Japanese companies and knowledge of Japanese business culture, we have developed unique skills to help Japanese companies navigate the US legal system and matters. We pride ourselves on being effective, responsive and efficient. When requested by clients or their Japanese counsel, our resident Japanese lawyers regularly communicate with and explain to Japanese companies, in Japanese, the unique features of the US legal system and proceedings to facilitate a better understanding of these legal intricacies and to ensure a fully informed decision-making process. Our approach and unique skill set benefits our Japanese clients.

Distinguished Service across Many Industries

A wide variety of Japanese companies conducting business worldwide seek our advice, including major electronics and electrical equipment manufacturing companies, multinational industry machinery manufacturers, banks and financial institutions, multinational trading companies (both sogo shosha and senmon shosha), multinational online retailing company, a leading furniture company, multinational retail chain of general merchandise and department stores, a leading clinical development contract research organization, pharmaceutical and biopharmaceutical companies; video game developers and distribution companies; major transportation companies; semiconductor companies; food companies; a major airline; a major advertising and public relations company; and an AI-related software developer, among others.

Invested in Deepening Client Relationships

Our team is regularly in Japan to support our clients. We also consistently host Japanese lawyers and legal managers in our offices in the US, as part of a decades-old attorney exchange program with law firms and corporate clients from Japan. We also have extensive experience in co-representing Japanese companies with Japanese law firms, and maintain close relationships with the most prominent Japanese firms.

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