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December 25, 2020: [Press Release] Atsumi & Sakai Announces Establishment of Kojimachi Office

Atsumi & Sakai Announces Establishment of Kojimachi Office

Atsumi & Sakai1 (A&S), a law firm based in Chiyoda-ku, Tokyo, is pleased to announce that it has established an additional office in Kojimachi (Kojimachi Office)2, likewise located in Chiyoda-ku.
The Kojimachi office was established by way of merger with Atsumi Law Office, a law firm created by attorney Yoko Atsumi in 2017. Ms. Atsumi specializes in domestic cases of senior executives and high net-worth individuals, including divorce and inheritance matters, crisis management including media relations, and white-collar crime, and is particularly accomplished at resolving private legal issues of individual high net-worth clients.
A&S strives to promote diversity3 built on collaboration and cooperation among diverse professionals, with varied backgrounds across jurisdictions and areas of expertise4, in order to provide comprehensive, streamlined legal services meeting increasingly complex and global needs. The establishment of the Kojimachi office serves this purpose by further expanding the range of services provided by A&S.
By merging with Atsumi Law Office, A&S aims to further increase the level and sophistication of the legal services it provides to its clients, and also sees it as a step towards having an impact beyond the practice of law, allowing the firm to contribute to society as a whole, including through pro bono activities and more.

Atsumi & Sakai LPC Kojimachi Office (secondary office of A&S)

Tower Kojimachi 4F/7F, 9-10, Nibancho, Chiyoda-ku, Tokyo

Representative attorney Yoko Atsumi and three associates

For further information, please contact:

Atsumi & Sakai LPC Kojimachi Office
Yoko Atsumi (Partner, Head of Kojimachi Office)       E-mail:

1 Atsumi & Sakai (Chioyda-ku, Tokyo, includes 181 lawyers in total (as of December 25, 2020; includes lawyers of Atsumi & Sakai LPC, offices operated by the Foreign Law Joint Venture, and the Frankfurt affiliate office)) was founded in 1994 and is the first major independent Japanese law firm with foreign lawyers as full partners. As a full-service law firm, A&S has provided international legal services and supported the value creation of clients with global needs for many years. In recent years, A&S has won multiple awards and placed highly on rankings of international legal publications (ALB Japan Law Awards 2018, 2019, and 2020 "Overseas Practice Law Firm of the Year", asialaw Awards 2020 Client Service Excellence Awards "Firm of the Year: Japan", etc.)
3 Approximately 30% of partners and Management Committee members are women. A&S was awarded the first "Family Friendly Award" given by the Daini Tokyo Bar Association's Division for the Promotion of Gender Equality, and the "Woman Lawyer of the Year" award by ALB Japan Law Awards 2017. A&S has also won the Employer of Choice award a total of 8 times, more than any other law firm in Japan. The Employer of Choice award has been announced annually by Asian Legal Business since 2008, and is based on surveys of lawyers and staff members of law firms in various countries to determine the most desirable firm to work at.
4 A&S has enjoyed a solid reputation in the area of finance since its founding. At present, the firm handles a broad range of matters beyond finance including M&A, investment, anti-trust law, funds, labor law, IP, IT/TMT, international commerce, litigation, arbitration, bankruptcy, corporate reorganization, life sciences, energy, sports and entertainment, as well as risk management and cutting-edge areas such as Fintech and IoT/AI.

Please see here for the PDF.


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