Department profile
Nagashima Ohno & Tsunematsu

Corporate/M&A

Global Guide 2026 : Japan

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Nagashima Ohno & Tsunematsu

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About

Provided by Nagashima Ohno & Tsunematsu

As one of Japan’s leading law firms, Nagashima Ohno & Tsunematsu provides its clients with strategic and business-orientated legal advice on general corporate matters and M&A transactions. With tailor-made and business-orientated practical solutions, we help our international clients to maneuver through the Japanese legal environment including comprehensive market-entry support. As a full-service law firm with over 600 highly-qualified lawyers, we are able to support our clients through the entire M&A process and in all sorts of transactions, from simple share deals to complicated carve-out in highly regulated business sectors.

Our offices in New York, Singapore, Bangkok, Ho Chi Minh City, Hanoi, Jakarta*, Shanghai, and now London can provide our clients with advice not only in Japan but throughout the United States, all major Asian jurisdictions and Europe. Our London office opened in 2025 addresses the rapidly increasing interest of Japanese investors in Europe and provides a first local contact for international clients and their projects in Japan. We have established and maintain a vast network of partner firms in the world each of which ranks top tier in its respective jurisdiction. This network with excellent local partners allow us to support our clients with one-stop solutions in all relevant jurisdictions.

(*Associate office)

For more details, please visit our website:

https://www.nagashima.com/en/practices/corporate/

https://www.nagashima.com/en/practices/m_and_a/

Chambers Review

Provided by Chambers

Corporate/M&A - Japan

What the Team is Known For

Nagashima Ohno & Tsunematsu maintains a superb market reputation for undertaking sophisticated domestic and cross-border transactions pertaining to stock and company acquisitions, joint ventures, asset transfers and takeover bids. The team is instructed by foreign multinationals in the sale of equity stakes in domestic companies and is also adept in business consolidations. The firm is counsel of choice for some of the biggest household-name corporations in Japan, assisting clients from a wide range of sectors including finance, life sciences and manufacturing.

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Work Highlights

Provided by Chambers

  • Nagashima Ohno & Tsunematsu advised Fujitsu General in a going private transaction through a tender offer by Paloma Rheem.

Strengths

Provided by Chambers

  • NO&T's greatest strength is that it has multiple lawyers with expertise in M&A, regulation, finance, tax law, among others that can work together as an appropriate team to respond to each case.

    Corporate/M&A respondentGlobal

  • They provide speedy and accurate advice on legal due diligence and contract negotiations, and practical risk analysis.

    Corporate/M&A respondentGlobal

  • Among the law firms that can advise on Japan law, we believe that they have the highest ability to handle complex cases.

    Corporate/M&A respondentGlobal

Notable Practitioners

Provided by Chambers

  • Hiroki Inoue
    Hiroki Inoue

    Hiroki Inoue

    Hiroki Inoue is a highly esteemed practitioner with considerable experience in the market. His wide-ranging expertise covers M&A, private equity, capital markets and venture capital transactions.
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  • Yuko Tamai
    Yuko Tamai

    Yuko Tamai

    Yuko Tamai enjoys a stellar reputation in this practice area and continues to advise high-profile Japanese clients on acquisitions and joint ventures.

    • She offers high-quality service based on a high level of expertise and a deep understanding of the business.

      Corporate/M&A respondentGlobal

    • She provides flexible, high-quality and client-oriented advice.

      Corporate/M&A respondentGlobal

    • Yuko Tamai is a leading M&A lawyer in Japan and shows a very deep consideration of each issue in a given case.

      Corporate/M&A respondentGlobal
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  • Tomohiko Iwasaki
    Tomohiko Iwasaki

    Tomohiko Iwasaki

    Tomohiko Iwasaki is sought after for his advice on significant domestic and cross-border transactions.

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  • Soichiro Fujiwara
    Soichiro Fujiwara

    Soichiro Fujiwara

    Soichiro Fujiwara is a well-known corporate practitioner in the market. His established reputation in the M&A field includes advising on cross-border transactions.

    • Soichiro Fujiwara is a lawyer with a sense of balance.

      Corporate/M&A respondentGlobal

    • He provides an accurate comment quickly.

      Corporate/M&A respondentGlobal
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  • Keigo Sawayama
    Keigo Sawayama

    Keigo Sawayama

    Keigo Sawayama is Nagashima Ohno & Tsunematsu's office head in Hanoi and frequently advises Japanese clients on international construction, real estate and corporate transactions.

    • He always responds thoroughly and promptly.

      Corporate/M&A respondentGlobal

    • Keigo Sawayama has a very good understanding of commerce.

      Corporate/M&A respondentGlobal
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  • Motohisa Nakagawa
    Motohisa Nakagawa

    Motohisa Nakagawa

    Motohisa Nakagawa is head of the Ho Chi Minh City office of Nagashima Ohno & Tsunematsu. He advises on a range of real estate transactions, including office and residential buildings.

    • Based on a deep understanding of the law and commercial practices, he provided the best practical advice to the deal.

      Corporate/M&A respondentGlobal

    • Motohisa Nakagawa is thorough in giving advice after carefully confirming the client's intentions.

      Corporate/M&A respondentGlobal
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  • Ryo Okubo
    Ryo Okubo

    Ryo Okubo

    Ryo Okubo is co-head of Nagashima Ohno & Tsunematsu's New York office and frequently advises on cross-border transactions between Japan and the USA.

    • Ryo Okubo has an overall view of transactions and is easy to consult with about business matters.

      Corporate/M&A respondentGlobal
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  • Shohei Sasaki
    Shohei Sasaki

    Shohei Sasaki

    Shohei Sasaki heads Nagashima Ohno & Tsunematsu’s Bangkok office. He regularly advises Japanese multinational corporations on cross-border M&A transactions and joint venture formations in Thailand.

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  • Yoshikazu Hasegawa
    Yoshikazu Hasegawa

    Yoshikazu Hasegawa

    Yoshikazu Hasegawa is a partner in Nagashima Ohno & Tsunematsu's Singapore office and is an experienced adviser on corporate transactions.

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Ranked Individuals at Nagashima Ohno & Tsunematsu (9)

Japan

Members

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Nagashima Ohno & Tsunematsu has rankings in the following guides

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