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Insurance and Reinsurance

For more than 50 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.


Insurance Firm of the Year
2013-2019, 2021-2022, 2024 – 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.


Department of the Year
Insurance Litigation Department of the Year – New York Law Journal 2024
“Simpson Thacher’s insurance practice group is among the best in the country. Their attorneys are supremely intelligent, hardworking, and regularly handle the most complex and high dollar insurance coverage claims in the nation.”
The Legal 500 U.S. 2024
Band 1
Insurance: Dispute Resolution: Insurer
Chambers USA
2007-2024
Tier 1
Insurance: Advice to Insurers
The Legal 500 U.S.
2010-2024

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        Spotlight on
        Insurance Law Alert Resource Center
        Spotlight on
        Simpson Thacher Named Insurance Litigation Department of the Year by NYLJ for Fourth Time
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        Simpson Thacher Named National Insurance Firm of the Year by Benchmark Litigation for Tenth Time
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        Simpson Thacher Named a Law360 Insurance “Practice Group of the Year” for 2023
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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