Company lists · Data refreshed September 2026
Top 25 Excess and surplus reinsurers worldwide
RevenueBase identified 518 excess and surplus reinsurers worldwide as of September 2026 and tracks 70,716 professional contacts across them, including 35,196 with verified work emails. The United States is the largest market and London the largest hub.
This list covers excess and surplus reinsurers worldwide, 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. Country and city lists for excess and surplus reinsurers follow the table.
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 excess and surplus reinsurers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 13,675 contacts → | ||||
Indirect evidence “The Swiss Re Group is a leading wholesale provider of reinsurance, insurance and other insurance-based forms of risk transfer.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 9,825 contacts → | ||||
Indirect evidence “We are a leading provider of insurance and reinsurance offering innovative risk management solutions for businesses worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 9,143 contacts → | ||||
Indirect evidence “Munich Re is one of the world’s leading providers of reinsurance, primary insurance and insurance-related risk solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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. | |||||
| 5 | 3,411 contacts → | ||||
Indirect 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 | 1,687 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,542 contacts → | ||||
Indirect 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. | |||||
| 9 | 1,401 contacts → | ||||
Indirect evidence “At PartnerRe, we are a community of curious, intelligent industry experts, united by a drive to outperform.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 694 contacts → | ||||
Indirect evidence “Chaucer are a leading specialty (re)insurance group working with brokers, coverholders and clients to protect and support business activities around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 653 contacts → | ||||
Strong evidence “Kinsale Insurance is an excess and surplus (E&S) lines insurance company located in Richmond, VA specializing in hard-to-place property, casualty, and specialty risks.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 652 contacts → | ||||
Partial evidence “Specialist commercial insurer and reinsurer, underwriting a diversified portfolio of specialty lines.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 634 contacts → | ||||
Indirect evidence “We are a trusted global re/insurance group and the leading provider of retrospective solutions, with specialist underwriting capabilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 614 contacts → | ||||
Strong evidence “Admiral Insurance Group, a Berkley company, provides excess and surplus (E&S) lines of commercial insurance exclusively through our nationwide network of wholesale brokers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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. | |||||
| 16 | 553 contacts → | ||||
Indirect evidence “Fortitude Re works with the world’s leading insurance companies to help them execute comprehensive, transformational solutions for legacy Life & Annuity and P&C lines.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 550 contacts → | ||||
Partial evidence “With more than three decades of experience in the re-insurance business, GIC of India, the Indian Reinsurer caters to the reinsurance needs of the country and also underwrites…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 530 contacts → | ||||
Indirect 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. | |||||
| 19 | 484 contacts → | ||||
Indirect evidence “As a global specialty insurance broker, Amwins Global Risks – formerly THB – delivers insurance and reinsurance coverage to clients around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 426 contacts → | ||||
Indirect evidence “Salasar is an insurance and reinsurance broking firm licensed by the Insurance Regulatory and Development Authority (IRDA) vide Licence No.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 378 contacts → | ||||
Indirect evidence “AS OF MARCH 28, 2017, ENDURANCE SPECIALTY HOLDINGS LTD.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 367 contacts → | ||||
Indirect evidence “Navigators, a brand of The Hartford is a market-leading provider of E&S solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 363 contacts → | ||||
Strong evidence “About Us Westchester is one of the largest and most diverse excess and surplus lines commercial property and casualty insurance companies in the United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 360 contacts → | ||||
Indirect evidence “HM Insurance Group (HM) works to protect businesses from the financial risk associated with health care costs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 346 contacts → | ||||
Indirect evidence “Vantage Group Holdings Ltd.(Vantage) was established in late 2020 as a specialty insurance and reinsurance partner designed for the future.” 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: excess and surplus 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 excess and surplus reinsurers.
- Partial evidence
- Its own public description names part of excess and surplus reinsurers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name excess and surplus 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 518 excess and surplus reinsurers worldwide
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Excess and surplus reinsurers worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 excess and surplus 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.
- Coverage
- Every country. Country and city lists for excess and surplus reinsurers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “excess and surplus 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 excess and surplus 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 excess and surplus reinsurers, and records with no verified work email.
- 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, 35,196 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.
Excess and surplus reinsurers by location
4 lists · largest firstEvery Excess and surplus reinsurers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 excess and surplus 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 excess and surplus reinsurers are there worldwide?
RevenueBase identified 518 excess and surplus reinsurers worldwide 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?
Swiss RE, headquartered in Zurich, tops this list with the largest team on record.
Which country has the most excess and surplus reinsurers?
The United States leads with 143 companies, followed by the United Kingdom (39) and Türkiye (28). Every excess and surplus reinsurers list by country and city is linked on this page.
Which city has the most excess and surplus reinsurers?
London leads with 28 headquartered companies, followed by Hamilton (14) and New York (13).
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 35,196 verified decision-maker contacts tracked across these 518 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.