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 aims to provide the highest quality legal services covering all legal issues arising from any business activity through the collaboration of lawyers.

  2. The firm will maintain the necessary size and scale to meet its objectives, and will be managed to pursue its objects while respecting the diverse values and lifestyles of its members and on the condition that all lawyers and staff will consistently uphold the highest ethical standards.

As set out above, the collaboration of all of the firm’s lawyers with the common goal of providing the firm’s clients with the highest quality legal services, and actually providing the highest quality legal services through such collaborative effort is valued as one of the most important principles of the firm. These principles are shared by all Nagashima Ohno & Tsunematsu lawyers and staff.

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 develop 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 the overseas expansion of Japanese companies, 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.