Corporate/M&A: Highly Regarded
Mexico
2 years ranked
LAWYER PROFILE
Miguel Tsuyoshi Ishii Yokoyama
Latin America 2027
Ranked in 1 practice area
Contributions and articles
2 Articles, Press releases, highlights
About
Provided by SENKO LEGAL, S.C.
Latin America
Practice Areas
Attorney with 35 years of experience advising national and international clients in corporate law, real estate law, and transactions.
Clients highlight the quality of his legal advice, service-oriented approach, and ability to offer creative solutions in complex negotiations. He is widely recognized for his experience and innovative approach in all aspects of mergers and acquisitions, including the design of corporate legal structures, co-investments, strategic alliances, and trusts.
Career
Graduate of Escuela Libre de Derecho
Postgraduate studies in Corporate and Tax Law at Universidad Panamericana
Master’s and Ph.D. candidate in International Economic and Business Law at Kyushu University, Japan (scholarship awarded by Japan's Ministry of Culture and Education)
Professional Memberships
Mr. Ishii is the Managing Partner of Senko Legal, S.C. He is Member of the Mexican Bar Association and the International Chamber of Commerce.
Personal
• Lecturer in Commercial Law at CIDE (2009–2012)
• Instructor in M&A Special Topics at Universidad Iberoamericana (2025)
Experience
• M&A Partner at Ontier Mexico (2022–2025) and Managing Partner (2023–2025)
• M&A Partner at Jáuregui y Del Valle (2013–2021)
• Senior Associate at Jones Day Mexico (2010–2012)
Languages Spoken
English and Japanese.
Chambers Review
Provided by Chambers
Chambers Latin America
Corporate/M&A: Highly Regarded - Mexico
Band 2
Individual Editorial
Miguel Tsuyoshi Ishii Yokoyama provides solid experience assisting clients with M&A deals and corporate restructuring matters in Mexico.
Strengths
Provided by Chambers
Miguel Tsuyoshi Ishii Yokoyama does whatever it takes to meet timelines and is truly incredible. Nothing stands in his way, even when working to tight deadlines.
Corporate/M&A: Highly RegardedChambers Latin America
Ranked Individuals at SENKO LEGAL, S.C. (2)
Mexico
Miguel Tsuyoshi Ishii Yokoyama
Corporate/M&A: Highly Regarded
View profile 
Frida Atenas Cázares
Corporate/M&A: Highly Regarded
View profile
Articles, Highlights and Press Releases
2 items provided by SENKO LEGAL, S.C.
What success is built on
Chambers is the leading data and intelligence partner for the legal sector.