With one of the largest legal teams in Japan, we bring a wealth of practical knowledge focused on the singular purpose of providing high quality legal services.


Our lawyers have authored or co-authored a number of newsletters, articles, books and other materials covering a wide range of legal areas to address the latest legal developments and increasingly diverse and complex issues.


We regularly hold seminars and offer lectures through various formats, such as online streaming.



Our Philosophy

Your Most Trusted Partner

Nagashima Ohno & Tsunematsu is founded on the following two fundamental principles:

  1. The firm shall strive to cover all legal issues arising from business activity with teams of lawyers working together to provide legal services of the highest quality.

  2. The firm shall maintain a size and scale to meet its purposes and while giving due consideration to the diversity of values and lifestyles of its members, always proceed on the basis of its lawyers and staff maintaining the highest ethical standards in pursuit of the firm’s goals.

As set out above, each of the firm’s lawyers works together with the common goal of providing the firm’s clients with the highest quality legal services. In addition, providing the highest quality legal services through that co-operative effort is valued as one of the most important principles of the firm. These values are shared by all Nagashima Ohno & Tsunematsu lawyers.

Our Team

Our Team
  1. Powerful Legal Teams

    We have powerful legal teams of lawyers, paralegals and secretaries capable of providing our clients with effective practical solutions. Each team has hands-on experience in achieving real results for clients in almost every sector of business. Because so many of our clients are domestic or foreign multi-national corporations, our teams also have tremendous experience in the international arena.

  2. Optimum Staffing for Every Case

    Team units are organized flexibly based on the type and needs of each case. Having specialized knowledge and experience, our lawyers are able to provide legal services and advice in various fields. Thus, our clients do not need to seek advice from other firms when dealing with complex or multiple matters.

  3. Emphasis on Training and Continuing Education for Our Lawyers

    By providing legal services within our legal team system, our lawyers gain invaluable experience in cases spanning a wide range of practice areas, thereby adding to their knowledge and competency. Learning continues through participation by our lawyers in foreign legal studies programs, independent research and study arrangements and/or through placements with educational and governmental institutions. Further training is accomplished through internal office study sessions and by virtue of our specialty practice group system.

  4. Staff Development

    We train and develops paralegals of incomparable quality and competence. We place great importance on their specialist knowledge and offer them work that affords them substantial learning opportunities and responsibilities under the guidance of our lawyers. Secretaries are trained to continuously improve and maintain excellent communication skills to work swiftly, effectively and precisely. Administration staff members, including information technology staff, are the administrative "backbone" of the firm ensuring the delivery of high quality legal services and supporting various aspects of our business operations.

  5. Broad Range of Global Networks

    With offices in Tokyo, New York and Asian countries, we have developed smooth and close working relationships with top-tier foreign law firms in every major city in the world including cities in Europe, North and Latin America, and Asia based upon its many years of working together with law firms from around the world. Particularly, in supporting Japanese companies that have recently been accelerating their business expansions overseas, we provide comprehensive legal services for any country or area by utilizing our local offices, the business bases secured through co-operative alliances and collaborative relationships with prominent local law firms.