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Thomas A. Ryan, FCAS, MAAA

Principal, Consulting Actuary
New York, NY, US

Tel: +1 516 5356404

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Professional Designations

  • Fellow, Casualty Actuarial Society
  • Member, American Academy of Actuaries


  • BS, Naval Architecture/Marine Engineering, Webb Institute of Naval Architecture

Current Responsibility

Tom is a principal and consulting actuary in the New York office of Milliman. He joined the firm in 1997.


Tom works on projects involving ratemaking, loss reserving, and reinsurance. The clients he serves include insurance companies, reinsurance companies, and legislative and regulatory bodies.

Tom specializes in the review of liabilities for large financial services firms. He has led the analyses of some of the largest property and casualty insurers and reinsurers in the world. This work has provided him with a unique perspective on many segments of the insurance and reinsurance market.

In addition to his work on large firms, Tom also has particular expertise related to the following:

  • Runoff entities
  • Contractors - Construction defect liabilities
  • Medical malpractice liabilities
  • Personal lines insurance
  • InsurTech entities
  • Actuarial Reserve Process reviews
  • Micro Insurance
  • Work at Milliman

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