Miura & Partners offers a one-stop legal solution for clients. Founded in 2019, the firm practises in sectors including corporate and M&A, finance, competition law and intellectual property. With the philosophy of “providing comprehensive legal advice and assisting clients in achieving their business goals”, the firm retains its presence both domestically and internationally. Masayuki Atsumi, Tomotake Matsuda, and Kazuo Itazaki are the key figures. The firm strengthened its dispute resolution practice with six new partners in 2024: Ayako Osugi from the Gifu District Court and Ryota Saito from the Chiba District Public Prosecutors Office joined in April; Mihiro Koeda from Nishimura and Asahi and Munetaka Takahashi from Nagashima Ohno and Tsunematsu in July; Yuko Kato joined from Torikai Law Office in September; and Taro Tanaka arrived from Legal Action Worldwide in Cox's Bazar in November. In separate moves, Takahashi also took on M&A work alongside his dispute resolution practice, while Junko Shiokawa joined the M&A team from Conyers Dill and Pearman in Hong Kong in April 2025.
Client feedback
"Miura & Partners' key strengths are their agility and ability to provide sound advice quickly." – Construction
"With a strong sense of urgency, they drafted the contract, offered insightful advice while thoroughly understanding our company's intentions, and helped facilitate smooth negotiations of the definitive agreement." – Corporate and M&A
"Their response is consistently quick." – Corporate and M&A
"They are polite and quick to respond." – Corporate and M&A
"They have a vast network with other firms, competitive pricing and are very quick at providing responses." – Corporate and M&A
"Their responsiveness is exceptional." – Corporate and M&A
"It was our first cross-border M&A and we had no idea how to judge terms in the SPA. However, they guided us through the tremendous challenge of drafting an SPA for acquiring an overseas finance company from a seller with extensive M&A experience. All work was completed at an astounding speed with very satisfactory outcomes. Haruka Murata was undoubtedly a real expert in cross-border M&A legal matters. We expect the same quality from the firm." – Corporate and M&A
"Their legal fees are very reasonable and their response is swift." – Corporate and M&A
"They effectively narrow down review points to meet our needs, respond quickly and offer reasonable costs." – Private equity
Haruka Murata
"Leveraging her profound legal expertise, she consistently delivers optimal solutions. Her exceptional documentation abilities enable her to rapidly prepare and review contracts."
"With a strong sense of urgency, she drafts contracts, offers insightful advice while thoroughly understanding our company's intentions, and helps facilitate smooth negotiations of definitive agreements."
"She provides quick responses and appropriate legal advice."
"Her fast response time is a strong advantage. She excels in M&A and handling international cases in English."
"She is knowledgeable and very quick to respond, with excellent depth of knowledge."
"She provides quick responses and appropriate advice."
"She has expertise in M&A, Japanese, British and other cross-border legal knowledge in contract drafting, along with extremely fast responses. She is totally fluent in Japanese and English."
"It was our first M&A transaction, and we had no idea how to judge terms in the SPA, or even which language it should be drafted in. However, she guided us through the tremendous challenge of drafting an SPA for acquiring an overseas finance company from a seller with extensive M&A experience. All work was completed at an astounding speed with very satisfactory outcomes. Haruka Murata was undoubtedly a real expert in cross-border M&A legal matters."
"She offers cost reasonableness and timely responses."
"She responds quickly to our requests, narrowing down review points to meet our needs. The cost is reasonable."
Work highlights
Representing Japanese investors in a landmark investment treaty arbitration against Switzerland over the write-off of Credit Suisse AT1 bonds worth $200 million. The case, initiated in December 2024, challenges Swiss regulatory actions during Credit Suisse's emergency sale to UBS that rendered these Additional Tier 1 capital instruments worthless. This groundbreaking dispute marks Japan's first collective funded investment arbitration case and could set significant precedents for government accountability in international banking regulation.
Successfully represented Tokyo Metropolitan Television Broadcasting Corporation (Tokyo MX) in a complex dispute over transaction fees worth ¥591 million. The case, concluded in September 2024, involved allegations of round-tripping fraud in an international business venture. The court fully upheld Tokyo MX's claims for payment while dismissing all counterclaims, enabling complete recovery of the disputed fees plus three-and-a-half years' interest before the appeal concluded.
Work highlights
Advising NEC Platforms on the divestment of its point-of-sale (POS) business to a special purpose company formed by Nippon Mirai Capital. The transaction, announced in September 2024 with parent company NEC Corporation, involves carving out the POS-related operations and is scheduled to complete in August 2025.
Advised TechMatrix Corporation on its RM145 million ($33.1 million) acquisition of Malaysian cybersecurity services provider Firmus. The landmark transaction, completed in November 2024, gives TechMatrix full ownership of Firmus and a 70% indirect stake in its Singapore subsidiary, also called Firmus. The deal represents a significant Japanese investment in Asean's cybersecurity sector, enabling TechMatrix to expand its regional footprint while combining its security technology expertise with Firmus's established service capabilities across southeast Asia.
Key clients
Kadokawa Corporation, Konoike Transport Co, Marunouchi Capital
Work highlights
Advising a major Japanese utility company on directors' liability investigation relating to an antitrust violation in the electricity and gas sector. Following Japan Fair Trade Commission orders, the team's independent investigation led to successful litigation against a former director for breach of duties, resulting in full compensation payment of ¥69.78 million ($0.47 million). The matter demonstrates rare acceptance of director liability in Japanese cartel cases.
Key clients
Noritsu Koki Co, Recruit Co, Toyota Motor Corporation
