Company lists · Data refreshed October 2026

Top 25 Commercial insurance agencies based in the United States

Name: Commercial insurance agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 22,098 companies tracked

RevenueBase identified 22,098 company matches for commercial insurance agencies associated with the United States as of October 2026 and tracks 770,164 professional contacts across them, including 294,261 with verified work emails. Houston is the largest hub.

This list covers company matches for commercial insurance agencies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 10, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 10, 2026 How this list was built

22,098Companies

770,164Contacts tracked

294,261Verified emails

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The 25 largest commercial insurance agencies based in the United States

Ranked by team size

Top 25 of 22,098 company matches for commercial insurance agencies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Progressive Insurance	Exact match	Mayfield Village, OH, United StatesHQ recorded Oct 10, 2026	10001+	39,939 contacts →
	Exact match “Every journey has a beginning, and wherever you are on your career path, we want to help you along the way.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Farmers Insurance	Exact match	Woodland Hills, CA, United StatesHQ recorded Oct 10, 2026	10001+	39,780 contacts →
	Exact match “The companies comprising the Farmers Insurance Group of Companies® currently make up one of the country's largest insurers of vehicles, homes and small businesses, and provide a…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Travelers	Exact match	New York, NY, United StatesHQ recorded Oct 10, 2026	10001+	33,538 contacts →
	Exact match “Travelers provides insurance coverage to protect the things that are important to you – your home, your car, your valuables and your business.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	AFLAC	Exact match	Columbus, GA, United StatesHQ recorded Oct 10, 2026	10001+	32,979 contacts →
	Exact match “Over 50 Million people worldwide have chosen Aflac because of our commitment to providing customers with the confidence that comes from knowing they have assistance in being…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Liberty Mutual Insurance	Exact match	Boston, MA, United StatesHQ recorded Oct 10, 2026	10001+	31,664 contacts →
	Exact match “At Liberty Mutual, we believe progress happens when people feel secure.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	AIG	Exact match	New York, NY, United StatesHQ recorded Oct 10, 2026	10001+	25,028 contacts →
	Exact match “American International Group, Inc.(NYSE: AIG) is a leading global insurance organization.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	HUB International	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	10001+	14,807 contacts →
	Exact match “Hi, we’re HUB.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Lockton	Exact match	Dallas, TX, United StatesHQ recorded Oct 10, 2026	10001+	14,330 contacts →
	Exact match “What makes Lockton stand apart is also what makes us better: independence.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	USI Insurance Services	Exact match	Valhalla, NY, United StatesHQ recorded Oct 10, 2026	10001+	10,601 contacts →
	Exact match “USI is one of the largest insurance brokerage and consulting firms in the world, delivering property and casualty, employee benefits, personal risk, program and retirement…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Marsh Mclennan Agency	Exact match	White Plains, NY, United StatesHQ recorded Oct 10, 2026	10001+	9,548 contacts →
	Exact match “Marsh McLennan Agency, a business of Marsh (NYSE: MRSH), is a leading provider of business insurance, employee health & benefits, retirement & wealth, and private client insurance…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Zurich North America	Exact match	Schaumburg, IL, United StatesHQ recorded Oct 10, 2026	5,001-10,000	9,431 contacts →
	Exact match “Zurich North America is one of the largest providers of insurance solutions and services to businesses and individuals.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	MARSH	Exact match	New York, NY, United StatesHQ recorded Oct 10, 2026	10001+	8,763 contacts →
	Exact match “We help our clients and colleagues grow, and our communities thrive, by protecting and promoting Possibility.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Colonial Life	Exact match	Columbia, SC, United StatesHQ recorded Oct 10, 2026	1,001-5,000	7,553 contacts →
	Exact match “Colonial Life & Accident Insurance Company, a subsidiary of Unum Group, provides financial protection benefits to America’s workers and their families when the unexpected happens.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	CNA Insurance	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	5,001-10,000	7,280 contacts →
	Exact match “CNA is one of the largest U.S.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Alliant Insurance Services	Exact match	Irvine, CA, United StatesHQ recorded Oct 10, 2026	10001+	6,474 contacts →
	Exact match “Alliant Insurance Services is among the top 5 largest and fastest-growing insurance brokerage and consulting firms in the United States.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	FM	Exact match	Johnston, RI, United StatesHQ recorded Oct 10, 2026	5,001-10,000	6,443 contacts →
	Exact match “For nearly 200 years, FM has empowered businesses worldwide to manage risk, prevent loss, and build resilience.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Erie Insurance Group	Exact match	Erie, PA, United StatesHQ recorded Oct 10, 2026	5,001-10,000	6,379 contacts →
	Exact match “From our modest roots starting in 1925 as a Pennsylvania auto insurer, we've grown to become a multi-line insurance company, offering auto, home, business and life insurance…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Kemper	Exact match	Chicago, IL, United StatesHQ recorded Oct 10, 2026	5,001-10,000	5,543 contacts →
	Exact match “The Kemper family of companies is one of the nation’s leading specialized insurers.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Auto-Owners Insurance	Exact match	Lansing, MI, United StatesHQ recorded Oct 10, 2026	5,001-10,000	5,395 contacts →
	Exact match “We are a team of hard working associates and local, independent agents who are proud to be among the nation's largest insurers of Life, Home, Car, and Business; and consistently…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Great American Insurance Group	Exact match	Cincinnati, OH, United StatesHQ recorded Oct 10, 2026	5,001-10,000	5,160 contacts →
	Exact match “For more than 150 years, customers have trusted us to protect what matters most to them.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	Amwins	Exact match	Charlotte, NC, United StatesHQ recorded Oct 10, 2026	5,001-10,000	5,053 contacts →
	Exact match “Amwins is the largest wholesale distributor of specialty insurance products and services in the U.S.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Amtrust Financial Services, INC	Exact match	New York, NY, United StatesHQ recorded Oct 10, 2026	5,001-10,000	4,809 contacts →
	Exact match “AmTrust Financial Services, Inc, through its subsidiaries, operates as a multinational property and casualty insurance company.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	The Cincinnati Insurance Companies	Exact match	Fairfield, OH, United StatesHQ recorded Oct 10, 2026	1,001-5,000	4,654 contacts →
	Exact match “The Cincinnati Insurance Company, operating since 1950, stands among the nation's top 25 property casualty insurer groups based on net written premiums.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Nfp, An AON Company	Exact match	New York, NY, United StatesHQ recorded Oct 10, 2026	5,001-10,000	4,359 contacts →
	Exact match “NFP, an Aon company, helps companies and individuals address today’s most significant Risk Capital and Human Capital challenges.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Sentry	Exact match	Stevens Point, WI, United StatesHQ recorded Oct 10, 2026	5,001-10,000	4,158 contacts →
	Exact match “Sentry Insurance got its start in 1904, when members of the Wisconsin Retail Hardware Association formed their own insurance company.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial insurance agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 22,098 commercial insurance agencies based in the United States

See the full list, filter by size, metro and specialty, and access 294,261 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial insurance agencies based in the United States at a glance

As of Oct 10, 2026

38.2%Verified-email coverage

34.9Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Houston

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

13,588

11-50

6,387

51-200

1,207

201-500

285

501-1,000

121

1,001-5,000

148

5,001-10,000

10001+

243

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 22,098 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “commercial insurance agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 294,261 professional contacts with verified work emails across the full matched dataset. 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 October 10, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Commercial insurance agencies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “commercial insurance agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial insurance agencies are there based in the United States?

RevenueBase identified 22,098 company matches for commercial insurance agencies associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Progressive Insurance tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most commercial insurance agencies?

Houston leads with 273 company records, followed by New York (222) and Miami (193).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 294,261 professional contacts with verified work emails tracked across these 22,098 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 10, 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 SmartSearch, 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.