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Insurance and Reinsurance

For more than 30 years, clients have relied on Simpson Thacher as a recognized international leader in insurance and reinsurance law. Through our involvement in the most significant cases, clients appreciate that we have done more to establish the controlling U.S. precedents in insurance and reinsurance law than any other law firm in the U.S.

2013-2019, 2021-2022
Insurance Firm of the Year - Benchmark Litigation

Clients benefit from our experience as the leading firm representing the interests of both ceding companies and reinsurers in litigations and arbitrations throughout the United States, the United Kingdom and Bermuda. Major insurance groups, including Travelers, AIG, Berkshire Hathaway, Lloyd’s of London and CNA have trusted us on their most significant matters.

The industry also acknowledges two authoritative treatises authored by our practice: Handbook on Insurance Coverage Disputes and Modern Reinsurance Law and Practice.


“Market leader for insurer representation, offering unmatched ability in handling bet-the-company litigation and arbitration proceedings.”
Chambers USA 2022

    News & Events



        Spotlight on
        Insurance Law Alert Resource Center
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        Simpson Thacher Named Insurance Litigation Department of the Year by NYLJ for Third Time
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        Insurance Litigation Practice National Practice Group of the Year (2013-2019, 2021-2022)
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        Simpson Thacher Named Finalist for The American Lawyer’s Insurance Litigation Department of the Year 2021
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        Bryce Friedman Named a 2020 “MVP” in Insurance by Law360