Company lists · Data refreshed September 2026

Specialty insurance companies: the worldwide list

RevenueBase identified 3,927 specialty insurance companies across the 17 countries with a published list, as of September 2026, and tracks 207,988 professional contacts across them, including 85,647 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This is the worldwide list of specialty insurance companies: the 17 country lists RevenueBase publishes for the category, summed and ranked as one. The company count is that sum, not a census of every company on earth; a country with no published list is not counted. 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 18, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 18, 2026 86% judged on-target in blind review
3,927Companies
207,988Contacts tracked
85,647Verified emails
0Mobile numbers
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The 25 largest specialty insurance companies across the 17 countries with a published list

Ranked by team size
Top 25 of 3,927 specialty insurance companies across the 17 countries with a published list, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to specialty insurance companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceChicago, IL, United StatesHQ checked Sep 18, 20265,001-10,0006,984 contacts →

Indirect evidence

“CNA is one of the largest U.S.”

Source: RevenueBase Database · checked Sep 18, 2026
2Partial evidenceChicago, IL, United StatesHQ checked Sep 18, 20265,001-10,0005,419 contacts →

Partial evidence

“The Kemper family of companies is one of the nation’s leading specialized insurers.”

Source: RevenueBase Database · checked Sep 18, 2026
3Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 18, 20265,001-10,0005,039 contacts →

Indirect evidence

“For more than 150 years, customers have trusted us to protect what matters most to them.”

Source: RevenueBase Database · checked Sep 18, 2026
4Strong evidenceCharlotte, NC, United StatesHQ checked Sep 18, 20265,001-10,0004,926 contacts →

Strong evidence

“Amwins is the largest wholesale distributor of specialty insurance products and services in the U.S.”

Source: RevenueBase Database · checked Sep 18, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 20265,001-10,0004,734 contacts →

Partial evidence

“AmTrust Financial Services, Inc, through its subsidiaries, operates as a multinational property and casualty insurance company.”

Source: RevenueBase Database · checked Sep 18, 2026
6Partial evidenceStevens Point, WI, United StatesHQ checked Sep 18, 20265,001-10,0003,963 contacts →

Partial evidence

“Sentry Insurance got its start in 1904, when members of the Wisconsin Retail Hardware Association formed their own insurance company.”

Source: RevenueBase Database · checked Sep 18, 2026
7Partial evidenceHannover, GermanyHQ checked Sep 18, 20265,001-10,0003,763 contacts →

Partial evidence

“HDI Global SE – Your Trusted Partner in Transformation Companies in the trading, manufacturing, and service industries need a reliable insurance partner.”

Source: RevenueBase Database · checked Sep 18, 2026
8Strong evidenceWarren, NJ, United StatesHQ checked Sep 18, 20261,001-5,0003,411 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 18, 2026
9Partial evidenceGlen Allen, VA, United StatesHQ checked Sep 18, 20261,001-5,0003,151 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 18, 2026
10Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 18, 20261,001-5,0003,021 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 18, 2026
11Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 18, 20265,001-10,0002,959 contacts →

Indirect evidence

“CRC Group is all about progress.”

Source: RevenueBase Database · checked Sep 18, 2026
12Strong evidenceChicago, IL, United StatesHQ checked Sep 18, 20261,001-5,0002,955 contacts →

Strong 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 18, 2026
13Partial evidenceBranchville, NJ, United StatesHQ checked Sep 18, 20261,001-5,0002,931 contacts →

Partial evidence

“At Selective, we maintain a commitment to provide unique insurance solutions that help keep the families and businesses of our communities protected.”

Source: RevenueBase Database · checked Sep 18, 2026
14Strong evidenceJersey City, NJ, United StatesHQ checked Sep 18, 20261,001-5,0002,704 contacts →

Strong evidence

“Arch Insurance Group Inc, a division of Arch Capital Group Ltd.(ACGL), is a market-leading specialty insurer.”

Source: RevenueBase Database · checked Sep 18, 2026
15Partial evidenceParis, FranceHQ checked Sep 18, 20261,001-5,0002,629 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 18, 2026
16Partial evidenceLondon, United KingdomHQ checked Sep 18, 20261,001-5,0002,564 contacts →

Partial 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 18, 2026
17Indirect evidenceUnterföhring, GermanyHQ checked Sep 18, 20261,001-5,0002,499 contacts →

Indirect evidence

“We are now Allianz Commercial!”

Source: RevenueBase Database · checked Sep 18, 2026
18Indirect evidenceBoston, MA, United StatesHQ checked Sep 18, 20265,001-10,0002,206 contacts →

Indirect evidence

“At Risk Strategies, part of the Brown & Brown team, we help our clients protect those things that matter most to them.”

Source: RevenueBase Database · checked Sep 18, 2026
19Strong evidenceMorristown, NJ, United StatesHQ checked Sep 18, 20261,001-5,0002,105 contacts →

Strong evidence

“Crum & Forster (C&F) provides market leading property & casualty, accident & health, specialty and standard commercial lines insurance solutions.”

Source: RevenueBase Database · checked Sep 18, 2026
20Indirect evidenceHouston, TX, United StatesHQ checked Sep 18, 20261,001-5,0002,006 contacts →

Indirect evidence

“Tokio Marine HCC focuses on what matters most; our people.”

Source: RevenueBase Database · checked Sep 18, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 18, 202610001+1,883 contacts →

Indirect evidence

“At QBE we’re driven by our purpose of enabling a more resilient future.”

Source: RevenueBase Database · checked Sep 18, 2026
22Partial evidenceSao Paulo, BrazilHQ checked Sep 18, 2026501-1,0001,844 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 18, 2026
23Strong evidenceBoston, MA, United StatesHQ checked Sep 18, 20261,001-5,0001,799 contacts →

Strong 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 18, 2026
24Partial evidenceWola, PolandHQ checked Sep 18, 20261,001-5,0001,703 contacts →

Partial evidence

“WARTA Insurance and Reinsurance Company maintains a steady position as the second largest insurer on the market.”

Source: RevenueBase Database · checked Sep 18, 2026
25Indirect evidenceMumbai, IndiaHQ checked Sep 18, 20261,001-5,0001,535 contacts →

Indirect evidence

“Sanoti Properties LLP, an entity jointly held by Adar Poonawalla (90%) and Rising Sun Holdings Pvt.”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 25 of 3,927 specialty insurance companies across the 17 countries with a published list

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Specialty insurance companies worldwide at a glance

As of Sep 18, 2026
41.2%Verified-email coverage
53.0Average contacts per company
1-10Median size (employees)
4.2%Largest-city concentration · London
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
1,964
11-50
1,263
51-200
378
201-500
135
501-1,000
62
1,001-5,000
79
5,001-10,000
17
10001+
13

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 specialty insurance companies, 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
This worldwide list is the sum of the 17 country lists RevenueBase publishes for specialty insurance companies, largest first: the United States, the United Kingdom, France, Brazil, Australia, Germany, Canada, Italy, South Africa, Spain and 7 more. Its company and contact totals add up those lists, so they understate the true worldwide figures: a country with no published list is not counted. The ranked table is exact across the countries covered, the largest companies of every country list ranked together with duplicates removed.
What qualifies
Companies worldwide whose own description of what they do matches “specialty insurance companies”. 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 specialty insurance companies), 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 specialty insurance companies, 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, 85,647 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
The country lists behind this page were pulled from the company graph on September 18, 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.

Specialty insurance companies by location

22 lists · largest first

Every Specialty insurance companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date; the worldwide figures above are the sum of the 17 country lists.

Countries

Cities

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 specialty insurance companies, 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 specialty insurance companies are there worldwide?

RevenueBase identified 3,927 specialty insurance companies across the 17 countries with a published list, as of September 2026, matched on each company's own description of what it does rather than its industry code. The figure is the sum of those country lists, not a census of every company worldwide.

What is the largest company on this list?

CNA Insurance, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most specialty insurance companies?

The United States leads with 2,088 companies, followed by the United Kingdom (422) and France (227). Every country with a published specialty insurance companies list is linked on this page.

Which city has the most specialty insurance companies?

London leads with 166 headquartered companies, followed by New York (67) and Sao Paulo (64).

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 85,647 verified decision-maker contacts tracked across these 3,927 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. The country lists behind this page were pulled from the company graph on September 18, 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.