So & Sato Law Offices is a boutique firm specialising in Web3, fintech, and emerging tech, led by So Saito workload ranges from regulatory compliance to product launch.

Anderson Mori & Tomotsune’s group provides comprehensive advisory services across financial regulation, IT, IP, information security, capital markets and venture capital. The practice is led by Ken Kawai who brings deep expertise in advising both global and domestic financial institutions, fintech companies, self-regulatory bodies, investors, and corporates on complex regulatory issues. Takeshi Nagase counsels a wide range of clients, including crypto start-ups, fintech-focused investment funds, gaming companies, and general trading houses, particularly on matters related to Web 3.0 businesses such as NFTs. Shunsuke Aoki is also a key figure, frequently advising domestic financial institutions on structuring innovative financial instruments incorporating emerging tech like blockchain.

Mori Hamada's practice advises a prestigious roster of Japanese and international clients on matters related to settlement systems, fund transfers, cryptocurrency and cybersecurity. The team is led by Masakazu Masujima whose practice spans payment services, including money transmission and crypto assets, alongside crowdfunding and insurtech matters; Takane Hori who has expertise in data protection and cybersecurity; and Atsushi Okada who handles both domestic and cross-border tech-related transactions and legal issues. Masayuki Ishibashi is a key contact for security token offering and capital markets work, while Katsuya Terai offers broad regulatory and transactional guidance across the tech and financial sectors.

Nagashima Ohno & Tsunematsu's team is co-led by Taku Umezawa, whose practice covers financial regulations and compliance matters - including those relating to the Banking Act, Insurance Business Act, and Financial Instruments and Exchange Act - as well as fintech, data protection and M&A cases; and M&A specialist Keiji Tonomura who handles IP and IT related advisory and transactional work. Clients turn to Takashi Itokawa for his expertise in securities offerings, including those by J-REITs, as well as M&A finance, securitisation and structured finance. Kazuyuki Ohno is a key contact, known for advising on financial regulatory issues affecting banks, trust companies and cryptocurrency exchange operators.

Nishimura & Asahi advises a broad range of clients, including Japanese banks, financial institutions and start-ups on fintech matters relating to blockchain tech, crowdfunding and app-based financial transactions. The practice is led by Naoya Ariyoshi who represents clients across a spectrum of corporate issues, including social trading, payment services, crypto-asset transactions and crowdfunding. Yusuke Motoyanagi offers strong expertise in asset management, equity capital markets and financial regulatory compliance. Dai Mizui is also a key name, particularly noted for his guidance on digital payments, blockchain and token-based services, as well as anti-money laundering, countering the financing of terrorism, and counter-proliferation financing regulations.

Atsumi & Sakai adviss financial institutions, start-ups and IT vendors at the intersection of tech innovation and regulatory compliance. The team provides guidance across a range of legal areas, including banking, payment services, securities, insurance, anti-money laundering and data privacy. The practice is jointly led by Yuri Suzuki who brings deep expertise in advising on crypto-assets and stablecoins, Takafumi Ochiai who has significant experience handling both domestic and international regulatory investigations, and Kenichi Tanizaki who is particularly well-versed in structured finance and securitisation matters.

TMI Associates' collective has expertise handling matters across a wide range of industry sectors, including finance, tech, finance, communications, electronics and real estate. The practice is led by Haruo Narimoto who handles issues related to investment-type crowdfunding in Japan; Arito Ogoshi who advises major financial institutions, securities firms, asset managers, and start-ups on financial regulatory matters, and Takatsugu Kitajima who is actively involved in blockchain-related projects spanning international trade and IoT. Ippei Shimizu departed in September 2025.