Daisaku Nonaka

Managing Director
Approximately two decades of transaction-related experience
Specialized in financial due diligence and deal advisory
Client mainly include private equity firms and domestic/international corporations
Tokyo
@alvarezmarsal
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Daisaku Nonaka is a Managing Director with Alvarez & Marsal Transaction Advisory Group in Tokyo. He serves as the Japan practice leader.

With approximately 20 years of transaction-related experience, Mr. Nonaka specializes in financial/accounting due diligence and deal advisory projects for both private equity and strategic buyers. He brings extensive experience in financial due diligence, financial modeling support, accounting advice, and share purchase agreement/transitional service agreement advice.

Mr. Nonaka has performed financial/accounting due diligence and deal advisory projects across numerous industries, including manufacturing, transportation, healthcare, consumer products, and technology. He has also led numerous international transactions.

Prior to joining A&M, Mr. Nonaka was a Partner and the head of the private equity unit of Deloitte Tohmatsu Financial Advisory LLC, where he assisted in expanding the practice. He began his career with the financial audit division of KPMG in New York.

Mr. Nonaka is a Certified Public Accountant (CPA) in New York.

Insights By This Professional

US based consulting firm Alvarez and Marsal (A&M) entered Japan in October and plans to recruit 100 professionals annually, targeting a workforce of 500 within five years, said head of the firmʼs transaction advisory group Japan, Daisaku Nonaka.
A&Mのグローバルおよび日本国内のリーダーたちが東京に集まり、日本進出における重要な節目を祝いました。
Global and regional A&M leaders gathered in Tokyo to mark an important milestone in A&M’s expansion into Japan.
Alvarez & Marsal’s (A&M) expansion into Japan was recently featured in Nikkei Asia
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Thought Leadership
The Infrastructure Pulse Survey Report for Q4 2025, by Alvarez & Marsal in collaboration with Global Infrastructure Investor Association (GIIA), provides valuable insights into market sentiment from leading investors around the world. Our biannual survey tracks investor confidence and emerging trends in infrastructure across Europe, Australia, and the Americas