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Masaaki Yoshimura, FIAJ

Special Advisor
Tokyo, JP

Tel: +81 3 52117174

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Professional Designations

  • Fellow, Institute of Actuaries of Japan


  • MS, Boston University's Graduate School of Management
  • BS, Mathematics, Kyoto University

Current Responsibility

Masaaki Yoshimura joined Milliman’s Tokyo office in April 2012 and assumed the role of “representative in Japan” in January 2013. He is responsible for consulting on issues related to enterprise risk management (ERM).


Previously employed by Sumitomo Life Insurance Company in Tokyo for about 30 years, he accumulated a wide variety of experience in the areas of corporate actuarial, international investment, and planning and research. In addition, he assumed the role of general manager of corporate risk management, served as an appointed actuary, and spent three years in the United States as chief representative of Sumitomo’s New York office.

He has served as general secretary of the Institute of Actuaries of Japan (IAJ) and is currently an executive board member and chairman of the ERM committee. He also contributed to a draft of report on demutualization and to the IAJ’s Standard of Practice regarding the allocation of policyholder contribution in demutualization.

He is one of the eight worldwide representatives of the executive committee of the International Actuarial Association and previously served as deputy chairman of the professionalism committee. He also has experience working as a member of the Insurance Working Group of the International Accounting Standards Board.

  • Work at Milliman

    • “I was offered a chance to come in, shake things up, create something."
    Work at Milliman