Mori Hamada & Matsumoto


16th Floor, Marunouchi Park Building
2-6-1 Marunouchi, Chiyoda-ku
Tokyo, 100-8222

+81(3)5220 1800

++81(3)5220 1700

Quick facts:

Number of lawyers: 709
Number of partners: 181
Languages: Bahasa (Malay and Indonesia), English, French, German, Japanese, Korean, Mandarin, Burmese, Thai, Vietnamese

Mori Hamada & Matsumoto (MHM) is one of the largest full-service Tokyo headquartered international law firms. A significant proportion of the firm’s work is international in nature, representing clients in cross-border transactions, litigation and other dispute resolution proceedings.

MHM has offices in Osaka, Nagoya, Fukuoka, Takamatsu and Sapporo in addition to its Tokyo headquarters. The firm has very strong full-service local law practices in Bangkok (Chandler MHM Limited) and Yangon (Myanmar Legal MHM Limited) and it is expanding its range of local law services in Ho Chi Minh City, Hanoi and Jakarta (ATD Law in association with Mori Hamada & Matsumoto). It also has offices in Singapore (MHM ASEAN hub), Shanghai and Beijing. In September 2023, the firm opened an office in New York through which it will further bolster its relationships with peer firms and clients in the US and the broader Americas regions, and provide them with efficient access to MHM’s Japan and ASEAN network.

The firm has strong working relationships with leading firms throughout Asia (as well as in Europe and the Americas), which enables it to work for its clients as a single, integrated team.

The Firm’s Professionals 
MHM firm has over 700 lawyers and 640 support staff including patent attorneys, licensed tax accountants, legal assistants and translators. Its senior lawyers include highly respected practitioners and leaders from the Japanese and international legal community, including prominent law professors from the University of Tokyo, and a former Prosecutor-General from the Public Prosecutors Office. The firm also has experienced lawyers qualified in the US, England and Wales, the People’s Republic of China, Bangladesh, the Philippines, India, Malaysia, Singapore, Myanmar, Thailand, Vietnam and more.

  • Banking and finance
  • Capital markets
  • Competition/antitrust
  • Construction
  • Corporate and M&A
  • Dispute resolution
  • Regulatory
  • Intellectual property
  • Labour and employment
  • Investment funds
  • Private equity
  • Restructuring and insolvency
  • Tax

  • Advising global private equity giant KKR in its take-private acquisition of Hitachi Transport System at an estimated deal value of USD 4.63 billion
  • Japan Post Holdings Co., Ltd., Japan Post Bank Co., Ltd., and Japan Post Insurance Co., Ltd. in their JPY1.43 trillion concurrent global initial public offerings and global follow-on offerings
  • The Japanese Bankers Association and Japan Syndication and Loan-trading Association in connection with the permanent cessation of LIBOR and Euro Yen TIBOR


  • Aviation and shipping
  • Banking and financial services
  • Consumer goods and services
  • Energy
  • Industrials and manufacturing
  • Infrastructure
  • Insurance
  • Materials
  • Media and entertainment
  • Mining
  • Oil and gas
  • Pharmaceuticals and life sciences
  • Real estate
  • Technology and telecommunications