Len Matsunaga

Len Matsunaga


Len Matsunaga is an American lawyer and a partner at Anderson Mori & Tomotsune. Mr. Matsunaga advises on cross-border mergers & acquisitions, joint ventures, and business restructurings, as well as business and finance transactions involving Japanese and Asian corporations. He has extensive experience in the cross-border representation of businesses on planning, financing and operational matters. Mr. Matsunaga also provides counseling on corporate governance and dispute resolution matters as well as on sales, distributorship, licensing, intellectual property, manufacturing and technology transfer arrangements, and equipment, aircraft and railcar leasing transactions.
Prior to joining our firm in 2015, Mr. Matsunaga was a partner at a prominent US international law firm in that firm's New York City and Tokyo offices. He has practiced for over 20 years in New York City and over 10 years in Tokyo.

Matsunaga Len

Practice Areas

Practice Groups

  • Corporate Transaction Group
  • Financial Services & Transactions Group
  • Corporate Crisis Management Practice Group


May 1981 Tufts University, Bachelor of Arts, Magna Cum Laude
May 1985 Georgetown University Law Center, Juris Doctor
Jan 2005 Partner at Bingham MucCutchen Murase
Apr 2007 Transferred to Bingham Sakai Mimura Aizawa
Apr 2015 Joined AMT as a Senior Foreign Counsel
Jan 2021 Became Partner at AMT


Essential Points of English M&A Drafting Kinzai Institute for Financial Affairs, Inc
Apr 2023
Mar 2011


Mar 20, 22, 2018
International Sanctions Compliance Seminar Anderson Mori & Tomotsune, Hughes Hubbard & Reed LLP, Slaughter and May
Apr 19, 2016


Professional Admissions

  • Pennsylvania (1986)
  • New York (1987)
  • Gaikokuho-Jimu-Bengoshi (registered foreign lawyer) (2010)

Professional and Academic Associations

  • Tokyo Bar Association


  • English (first language)
  • Japanese