Company lists · Data refreshed September 2026

Top 25 Public liability insurance underwriters worldwide

Name: Public liability insurance underwriters worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 2,429 companies tracked

RevenueBase identified 2,429 public liability insurance underwriters worldwide as of September 2026 and tracks 159,883 professional contacts across them, including 66,253 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers public liability insurance underwriters 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 17, 2026. Country and city lists for public liability insurance underwriters 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

2,429Companies

159,883Contacts tracked

66,253Verified emails

0Mobile numbers

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The 25 largest public liability insurance underwriters worldwide

Ranked by team size

Top 25 of 2,429 public liability insurance underwriters worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to public liability insurance underwriters: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Travelers	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	32,682 contacts →
	Partial evidence “Travelers provides insurance coverage to protect the things that are important to you – your home, your car, your valuables and your business.” Source: RevenueBase Database · checked Sep 17, 2026
2	Amwins	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,926 contacts →
	Partial evidence “Amwins is the largest wholesale distributor of specialty insurance products and services in the U.S.” Source: RevenueBase Database · checked Sep 17, 2026
3	Amtrust Financial Services, INC	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,734 contacts →
	Partial evidence “AmTrust Financial Services, Inc, through its subsidiaries, operates as a multinational property and casualty insurance company.” Source: RevenueBase Database · checked Sep 17, 2026
4	Everest	Partial evidence	Warren, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,411 contacts →
	Partial 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 17, 2026
5	Markel	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,151 contacts →
	Partial evidence “As the insurance operations within the Markel Group Inc.(NYSE: MKL), we leverage a broad array of capabilities and expertise to create intelligent solutions for the most complex…” Source: RevenueBase Database · checked Sep 17, 2026
6	Mcgriff	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,021 contacts →
	Indirect evidence “When it comes to protecting what matters most in business and everyday life, at McGriff we believe our clients should never settle for less than the best.” Source: RevenueBase Database · checked Sep 17, 2026
7	RT Specialty	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,955 contacts →
	Partial evidence “RT Specialty is a leading wholesale distributor of specialty insurance products and services and the wholesale broking specialty for Ryan Specialty.” Source: RevenueBase Database · checked Sep 17, 2026
8	Arch Insurance Group INC	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,704 contacts →
	Partial evidence “Arch Insurance Group Inc, a division of Arch Capital Group Ltd.(ACGL), is a market-leading specialty insurer.” Source: RevenueBase Database · checked Sep 17, 2026
9	Smabtp	Partial evidence	Paris, FranceHQ checked Sep 17, 2026	1,001-5,000	2,629 contacts →
	Partial evidence “With 4,400 employees, SMABTP provides insurance coverage for over clients and members, meeting all their insurance needs, from businesses, professionals, artisans, and executives…” Source: RevenueBase Database · checked Sep 17, 2026
10	Beazley	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	2,564 contacts →
	Indirect evidence “We are a specialty insurer with more than three decades of experience in providing clients with the highest standards of underwriting and claims service worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
11	Allianz Global Corporate & Specialty Agcs	Indirect evidence	Unterföhring, GermanyHQ checked Sep 17, 2026	1,001-5,000	2,499 contacts →
	Indirect evidence “We are now Allianz Commercial!” Source: RevenueBase Database · checked Sep 17, 2026
12	Tokio Marine HCC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,006 contacts →
	Indirect evidence “Tokio Marine HCC focuses on what matters most; our people.” Source: RevenueBase Database · checked Sep 17, 2026
13	QBE North America	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	1,883 contacts →
	Indirect evidence “At QBE we’re driven by our purpose of enabling a more resilient future.” Source: RevenueBase Database · checked Sep 17, 2026
14	Sompo Seguros	Partial evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	501-1,000	1,844 contacts →
	Partial evidence “Sompo Seguros S.A is a subsidiary of Sompo International, the company responsible for the insurance and reinsurance operations of the Sompo Holdings Group outside Japan.” Source: RevenueBase Database · checked Sep 17, 2026
15	Berkshire Hathaway Specialty Insurance	Partial evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,799 contacts →
	Partial evidence “Berkshire Hathaway Specialty Insurance is an organization committed to providing long-term risk solutions and claims care to our customers backed by the financial strength of…” Source: RevenueBase Database · checked Sep 17, 2026
16	Broadspire	Indirect evidence	Peachtree Corners, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,658 contacts →
	Indirect evidence “Broadspire offers risk management solutions designed to help clients achieve their unique goals, increase employee productivity, and reduce costs.” Source: RevenueBase Database · checked Sep 17, 2026
17	RLI Insurance Company	Indirect evidence	Peoria, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,386 contacts →
	Indirect evidence “RLI is a U.S-based specialty insurer that serves niche property, casualty and surety markets.” Source: RevenueBase Database · checked Sep 17, 2026
18	QBE Europe	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,343 contacts →
	Indirect evidence “At QBE we’re driven by our purpose of enabling a more resilient future.” Source: RevenueBase Database · checked Sep 17, 2026
19	USLI	Partial evidence	Wayne, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,314 contacts →
	Partial evidence “We aspire to be the very best insurance company at underwriting insurance products for our customers.” Source: RevenueBase Database · checked Sep 17, 2026
20	Esis, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,262 contacts →
	Indirect evidence “ESIS®, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
21	Capspecialty	Strong evidence	Middleton, WI, United StatesHQ checked Sep 17, 2026	201-500	1,145 contacts →
	Strong evidence “CapSpecialty® is a leading provider of specialty insurance for small to mid-sized businesses in the U.S, offering casualty, professional liability, surety and fidelity products in…” Source: RevenueBase Database · checked Sep 17, 2026
22	Ryan Specialty	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,079 contacts →
	Partial evidence “Ryan Specialty (NYSE: RYAN) is an international specialty insurance firm that provides distribution, underwriting, product development, administration and risk management services…” Source: RevenueBase Database · checked Sep 17, 2026
23	Fcci Insurance Group	Partial evidence	Sarasota, FL, United StatesHQ checked Sep 17, 2026	501-1,000	1,036 contacts →
	Partial evidence “FCCI Insurance Group provides commercial property and casualty insurance.” Source: RevenueBase Database · checked Sep 17, 2026
24	Provincia ART	Indirect evidence	Ciudad Autónoma De Buenos Aires, ArgentinaHQ checked Sep 17, 2026	501-1,000	1,014 contacts →
	Indirect evidence “Somos una de las empresas aseguradoras de Grupo Provincia, especializada en la prestación del seguro de cobertura de riesgos del trabajo.” Source: RevenueBase Database · checked Sep 17, 2026
25	Safety National	Partial evidence	St Louis, MO, United StatesHQ checked Sep 17, 2026	501-1,000	1,008 contacts →
	Partial evidence “Safety National is a leading specialty insurance and reinsurance provider.” Source: RevenueBase Database · checked Sep 17, 2026

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: public liability insurance underwriters. 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 public liability insurance underwriters.
Partial evidence: Its own public description names part of public liability insurance underwriters, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public liability insurance underwriters. 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 2,429 public liability insurance underwriters worldwide

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Public liability insurance underwriters worldwide at a glance

As of Sep 17, 2026

41.4%Verified-email coverage

65.8Average contacts per company

11-50Median size (employees)

3.0%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,137

11-50

821

51-200

244

201-500

101

501-1,000

1,001-5,000

5,001-10,000

10001+

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 public liability insurance underwriters, 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: 16 countries, largest first: the United States, the United Kingdom, Brazil, France, Australia, Germany, Italy, Spain, Canada, South Africa and 6 more. Country and city lists for public liability insurance underwriters are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “public liability insurance underwriters”. 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 public liability insurance underwriters), 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 public liability insurance underwriters, 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, 66,253 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 17, 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.

Public liability insurance underwriters by location

16 lists · largest first

Every Public liability insurance underwriters 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 public liability insurance underwriters, 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 public liability insurance underwriters are there worldwide?

RevenueBase identified 2,429 public liability insurance underwriters 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?

Travelers, headquartered in New York, tops this list with the largest team on record.

Which country has the most public liability insurance underwriters?

The United States leads with 1,218 companies, followed by the United Kingdom (204) and Brazil (143). Every public liability insurance underwriters list by country and city is linked on this page.

Which city has the most public liability insurance underwriters?

London leads with 74 headquartered companies, followed by New York (49) and Sao Paulo (41).

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 66,253 verified decision-maker contacts tracked across these 2,429 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 17, 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.