Company lists · Data refreshed September 2026
Top 25 Property and casualty reinsurers based in the United States
RevenueBase identified 192 property and casualty reinsurers headquartered in the United States as of September 2026 and tracks 60,163 professional contacts across them, including 30,641 with verified work emails. New York is the largest hub.
This list covers property and casualty reinsurers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest property and casualty reinsurers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 30,330 contacts → | ||||
Indirect evidence “At Liberty Mutual, we believe progress happens when people feel secure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,926 contacts → | ||||
Indirect evidence “Amwins is the largest wholesale distributor of specialty insurance products and services in the U.S.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,128 contacts → | ||||
Indirect evidence “Reinsurance Group of America, Incorporated (NYSE: RGA) is a global industry leader specializing in life and health reinsurance and financial solutions that help clients…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4,072 contacts → | ||||
Indirect evidence “At Guy Carpenter, a Marsh business, we deliver a powerful combination of (re)insurance broking expertise, capital solutions, global analytics, advisory, and client support…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 3,411 contacts → | ||||
Strong evidence “Everest Group, Ltd.(“Everest”) is a global underwriting leader providing best-in-class property, casualty, and specialty reinsurance and insurance solutions that address…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,883 contacts → | ||||
Indirect evidence “At QBE we’re driven by our purpose of enabling a more resilient future.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,542 contacts → | ||||
Strong evidence “Gen Re is a leading property/casualty and life/health reinsurance company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,262 contacts → | ||||
Indirect evidence “Radian Group Inc.(NYSE: RDN) is a trusted, global multi-line specialty insurer, built to empower confident business decisions around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,008 contacts → | ||||
Indirect evidence “Safety National is a leading specialty insurance and reinsurance provider.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 843 contacts → | ||||
Strong evidence “Rated A+ Superior by AM Best (as of 8/13/25), Berkshire Hathaway GUARD Insurance Companies provides Property & Casualty insurance including Excess & Surplus lines.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 680 contacts → | ||||
Indirect evidence “Applied Underwriters® is a global risk services firm helping business and people manage uncertainty through its business services, insurance, and reinsurance solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 578 contacts → | ||||
Indirect evidence “We are a leading international reinsurance organization headquartered in New York with operations worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 530 contacts → | ||||
Strong evidence “OdysseyRe offers a broad range of property, casualty, and specialty reinsurance solutions through a network of 14 branch and representative offices around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 313 contacts → | ||||
Indirect evidence “We Deliver RiskSmart Run-Off(R) Solutions With Global Reach Aligning risk with the need for capital efficiency and greater business focus is a key challenge for insurers and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 309 contacts → | ||||
Indirect evidence “Old Republic Risk Management has served the alternative risk marketplace since the 1950s.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 300 contacts → | ||||
Strong evidence “GBLI | Global Indemnity provides specialty property and casualty coverage for a wide range of markets-from small business, manufactured homes, and vacant property to agriculture…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 193 contacts → | ||||
Partial evidence “We write a wide variety of complex transactional and specialty casualty and reinsurance risks, creating customized responsive underwriting solutions for a range of exposures.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 138 contacts → | ||||
Indirect evidence “Wilton Re is a U.S.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 133 contacts → | ||||
Indirect evidence “American Agricultural Insurance Company (AmericanAg®) stands out from the marketplace as a provider of reinsurance services across the insurance spectrum with a growing global…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 132 contacts → | ||||
Strong evidence “Cypress Property & Casualty has provided our policyholders and agents with a long-term, stable market of products and services to meet the needs of home and business owners for…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 128 contacts → | ||||
Strong evidence “The Stamford, Connecticut-based RVI Group is a financial services company focused on specialty property and casualty insurance and reinsurance.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 111 contacts → | ||||
Indirect evidence “TAI is the market leader in life reinsurance systems in North America with clients in the United States, Bermuda, the Caribbean, United Kingdom, South Africa and Hong Kong.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 111 contacts → | ||||
Indirect evidence “Arch Re's Facultative Reinsurance division focuses on supplying significant capacity to the global reinsurance marketplace backed by creative solutions and superior client service.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 95 contacts → | ||||
Indirect evidence “GPW and Associates, Inc.(GPW) has provided actuarial, reinsurance, and captive services since 1998.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 87 contacts → | ||||
Partial evidence “Wellington Insurance Group is a Texas-based risk distribution and financial services organization specializing in the delivery and administration of residential property insurance.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: property and casualty reinsurers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names property and casualty reinsurers.
- Partial evidence
- Its own public description names part of property and casualty reinsurers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name property and casualty reinsurers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 192 property and casualty reinsurers based in the United States
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Property and casualty reinsurers based in the United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 192 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among property and casualty reinsurers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “property and casualty reinsurers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names property and casualty reinsurers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among property and casualty reinsurers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 30,641 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names property and casualty reinsurers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many property and casualty reinsurers are there based in the United States?
RevenueBase identified 192 property and casualty reinsurers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Liberty Mutual Insurance, headquartered in Boston, tops this list with the largest team on record.
Which city has the most property and casualty reinsurers?
New York leads with 17 headquartered companies, followed by Miami (14) and Stamford (8).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 30,641 verified decision-maker contacts tracked across these 192 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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