Atsumi & Sakai

Atsumi & Sakai is a Japanese law firm headquartered in Tokyo. Its practice is organized around five formal groups: finance, corporate, funds, litigation and insolvency, and international practice. This structure positions the firm to advise on transactions, financial regulation, investment vehicles, disputes, restructurings, insolvency matters, and cross-border legal work. The firm traces its origins to 1994, when a group of lawyers led by Hiroo Atsumi left Blakemore & Mitsuki and established a practice under the name Atsumi & Usui. In 2003, it adopted the name Atsumi & Partners. A significant development followed in 2005, when the firm became the first Japanese law firm to register as a joint venture between Japanese and foreign lawyers. That step reflected its interest in international practice and distinguished it from the more traditionally structured Japanese legal partnerships of the period. In 2010, the firm adopted the name Atsumi & Sakai after absorbing a practice group from TMI Associates. The change broadened the firm’s platform and created the basis for its current identity. The firm subsequently experienced a notable personnel change in 2011, when partner Hiroaki Takahashi and several associates departed to join the Tokyo office of the Canadian law firm Davis LLP, now known as Davis & Takahashi. In 2013, Atsumi & Sakai formed a joint venture with the German law practice of Markus Janssen, further extending its cross-border capabilities. Atsumi & Sakai’s service model combines Japanese law advice with international coordination. Its finance practice covers legal work connected with financial institutions and financial transactions, while its corporate practice supports companies on general corporate and transactional issues. The funds practice focuses on investment funds and related structures. Litigation and insolvency work addresses disputes, reorganizations, and insolvency-related matters. The international practice provides a framework for matters involving overseas parties, foreign jurisdictions, and international business activity. The firm is also associated with Yuji Yamamoto, a Japanese Diet member and former Minister of State for Financial Services, who serves as an advisor. Publicly available reference material does not provide sufficient detail to characterize the firm’s current revenue, lawyer count, ownership structure, or client roster. Its known profile is that of an independent Tokyo law firm with a Japan-centered practice and established international links.

Atsumi & Sakai originated in 1994 as Atsumi & Usui, a Tokyo practice founded by lawyers led by Hiroo Atsumi after their departure from Blakemore & Mitsuki. The firm later became known as Atsumi & Partners in 2003. Its early development culminated in 2005, when it registered as a joint venture between Japanese and foreign lawyers. The registration was described as a first for a Japanese law firm and reflected the practice’s intention to operate with a more international structure. In 2010, the firm adopted its present name, Atsumi & Sakai, after absorbing a practice group from TMI Associates. This transaction or organizational integration expanded the platform and established the name under which the firm is now generally identified. The firm’s subsequent history included both personnel movement and international expansion. In 2011, partner Hiroaki Takahashi and several associates left to join the Tokyo office of Davis LLP, a Canadian firm now known as Davis & Takahashi. In 2013, Atsumi & Sakai formed a joint venture with the German law practice of Markus Janssen. The firm’s known practice architecture consists of five formal groups: finance, corporate, funds, litigation and insolvency, and international practice. Together, these groups cover core legal needs of businesses, financial institutions, investors, and parties involved in disputes or restructuring. The international group and the firm’s joint-venture history are particularly relevant to its cross-border profile, while its Tokyo base anchors the practice in the Japanese legal market. Reference material also identifies Yuji Yamamoto, a Diet member and former Minister of State for Financial Services, as an advisor to the firm. Public sources supplied for this entry do not establish a complete list of current managing partners, the firm’s financial performance, its total number of lawyers, or a detailed account of its current offices. Accordingly, the firm’s historical development and publicly documented practice groups are better established than its present organizational statistics.

• 2013

  German joint venture

  [1]Atsumi & Sakaien.wikipedia.org

  Atsumi & Sakai formed a joint venture with the German law practice of Markus Janssen.

• 2011

  Departure of Hiroaki Takahashi and associates

  [1]Atsumi & Sakaien.wikipedia.org

  Partner Hiroaki Takahashi and several associates left to join Davis LLP's Tokyo office.

• 2010

  Adoption of the Atsumi & Sakai name

  [1]Atsumi & Sakaien.wikipedia.org

  The firm changed to its current name after absorbing a practice group from TMI Associates.

• 2005

  Japanese-foreign lawyer joint-venture registration

  [1]Atsumi & Sakaien.wikipedia.org

  The firm became the first Japanese law firm described as registering as a joint venture between Japanese and foreign lawyers.

• 2003

  Renamed Atsumi & Partners

  [1]Atsumi & Sakaien.wikipedia.org

  The firm adopted the name Atsumi & Partners.

• 1994

  Foundation as Atsumi & Usui

  [1]Atsumi & Sakaien.wikipedia.org

  Hiroo Atsumi led a group of lawyers in establishing the firm after leaving Blakemore & Mitsuki.

A Tokyo-based full-service law firm with a strong corporate, finance, funds, disputes, insolvency, and cross-border orientation.

• Legal practice

  Finance

  The finance group handles legal matters connected with financial institutions, finance transactions, and related regulatory or commercial issues. The supplied reference identifies finance as one of the firm’s five formal practice groups but does not provide a detailed service list.

• Legal practice

  Corporate

  The corporate group advises businesses on corporate legal matters and transactions. Its inclusion among the firm’s formal groups indicates a central role in supporting companies and other organizations, although the available reference does not specify individual mandates or sectors.

• Legal practice

  Funds

  The funds group focuses on legal work involving investment funds and related structures. The reference material identifies this as a distinct formal practice area, but does not provide further information about fund types, jurisdictions, or representative transactions.

• Legal practice

  Litigation and insolvency

  This group covers disputes and insolvency-related legal work. Its scope is described at the practice-group level in the available reference and includes the firm’s litigation and insolvency capabilities without publicly documented matter details in the supplied material.

• 2013

  Form a joint venture with Markus Janssen's German practiceM&A

  Background

  Atsumi & Sakai pursued additional international links after its earlier Japanese-foreign joint-venture structure.

  Action taken

  The firm formed a joint venture with the German law practice of Markus Janssen.

  Aftermath

  The arrangement strengthened the firm’s documented international network, with no financial or operational details provided in the reference.

  Source

• 2010

  Absorb a TMI Associates practice group and adopt the Atsumi & Sakai nameM&A

  Background

  The firm changed its organizational and market identity after integrating a practice group from TMI Associates.

  Action taken

  The practice group was absorbed and the firm adopted the name Atsumi & Sakai.

  Aftermath

  The integration established the firm’s current name and expanded its platform, although the supplied sources do not quantify the resulting changes.

  Source

• 2005

  Register as a Japanese-foreign lawyer joint ventureStrategy

  Background

  The firm was developing an international practice and sought a structure involving both Japanese and foreign lawyers.

  Action taken

  Atsumi registered as a joint venture between Japanese and foreign lawyers, reportedly becoming the first Japanese law firm to do so.

  Aftermath

  The registration reinforced the firm’s cross-border positioning and preceded later international cooperation, including a German joint venture in 2013.

  Source

1. 1Atsumi & Sakaien.wikipedia.org