Company lists · Data refreshed September 2026

Top 25 Commercial insurance agents and brokers based in the United States

RevenueBase identified 12,113 commercial insurance agents and brokers headquartered in the United States as of September 2026 and tracks 422,205 professional contacts across them, including 195,653 with verified work emails. New York is the largest hub.

This list covers commercial insurance agents and brokers 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 16, 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 16, 2026 86% judged on-target in blind review
12,113Companies
422,205Contacts tracked
195,653Verified emails
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The 25 largest commercial insurance agents and brokers based in the United States

Ranked by team size
Top 25 of 12,113 commercial insurance agents and brokers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to commercial insurance agents and brokers: 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
1Partial evidenceNew York, NY, United StatesHQ checked Sep 16, 202610001+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 16, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 16, 202610001+15,852 contacts →

Indirect evidence

“We help our clients and colleagues grow, and our communities thrive, by protecting and promoting Possibility.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceChicago, IL, United StatesHQ checked Sep 16, 202610001+14,217 contacts →

Indirect evidence

“Hi, we’re HUB.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceDallas, TX, United StatesHQ checked Sep 16, 202610001+13,482 contacts →

Indirect evidence

“What makes Lockton stand apart is also what makes us better: independence.”

Source: RevenueBase Database · checked Sep 16, 2026
5Strong evidenceValhalla, NY, United StatesHQ checked Sep 16, 202610001+10,303 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
6Strong evidenceWhite Plains, NY, United StatesHQ checked Sep 16, 202610001+9,086 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceSchaumburg, IL, United StatesHQ checked Sep 16, 20265,001-10,0008,988 contacts →

Partial evidence

“Zurich North America is one of the largest providers of insurance solutions and services to businesses and individuals.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceChicago, IL, United StatesHQ checked Sep 16, 20265,001-10,0006,984 contacts →

Indirect evidence

“CNA is one of the largest U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
9Strong evidenceIrvine, CA, United StatesHQ checked Sep 16, 202610001+6,091 contacts →

Strong evidence

“Alliant Insurance Services is among the top 5 largest and fastest-growing insurance brokerage and consulting firms in the United States.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceWorcester, MA, United StatesHQ checked Sep 16, 20265,001-10,0005,132 contacts →

Partial evidence

“Rooted in our commitment to be with you, every step, The Hanover Insurance Group, Inc.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceCharlotte, NC, United StatesHQ checked Sep 16, 20265,001-10,0004,926 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 16, 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 16, 2026
13Indirect evidenceRolling Meadows, IL, United StatesHQ checked Sep 16, 202610001+4,282 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceNew York, NY, United StatesHQ checked Sep 16, 20265,001-10,0004,119 contacts →

Indirect evidence

“NFP, an Aon company, helps companies and individuals address today’s most significant Risk Capital and Human Capital challenges.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 16, 20261,001-5,0004,072 contacts →

Partial 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 16, 2026
16Partial evidenceStevens Point, WI, United StatesHQ checked Sep 16, 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 16, 2026
17Indirect evidenceBrea, CA, United StatesHQ checked Sep 16, 20265,001-10,0003,186 contacts →

Indirect evidence

“At Mercury, we have been guided by our purpose to help people reduce risk and overcome unexpected events for more than 60 years.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceGlen Allen, VA, United StatesHQ checked Sep 16, 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 16, 2026
19Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 16, 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 16, 2026
20Indirect evidenceCharlotte, NC, United StatesHQ checked Sep 16, 20265,001-10,0002,959 contacts →

Indirect evidence

“CRC Group is all about progress.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceChicago, IL, United StatesHQ checked Sep 16, 20261,001-5,0002,955 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 16, 2026
22Partial evidenceBranchville, NJ, United StatesHQ checked Sep 16, 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 16, 2026
23Strong evidenceDenver, CO, United StatesHQ checked Sep 16, 20261,001-5,0002,484 contacts →

Strong evidence

“With over four decades of experience in the industry, IMA has become a trusted leader in commercial insurance, risk management, surety, and employee benefits brokerage and…”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceTampa, FL, United StatesHQ checked Sep 16, 20261,001-5,0002,376 contacts →

Partial evidence

“The Baldwin Group is a cohesive group of experts in business insurance, employee benefits, retirement planning, and all areas of private and personal insurance.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceFort Worth, TX, United StatesHQ checked Sep 16, 20261,001-5,0002,374 contacts →

Partial evidence

“Higginbotham is an employee-owned leader in insurance, financial services and HR/employee benefits.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 12,113 commercial insurance agents and brokers based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 195,653 reachable decision-makers.

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Commercial insurance agents and brokers based in the United States at a glance

As of Sep 16, 2026
46.3%Verified-email coverage
34.9Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · New York
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
6,964
11-50
3,727
51-200
786
201-500
168
501-1,000
80
1,001-5,000
100
5,001-10,000
35
10001+
219

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 12,113 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 commercial insurance agents and brokers, 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 “commercial insurance agents and brokers”. 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 commercial insurance agents and brokers), 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 commercial insurance agents and brokers, 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, 195,653 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 16, 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.

Commercial insurance agents and brokers by metro

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 commercial insurance agents and brokers, 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 commercial insurance agents and brokers are there based in the United States?

RevenueBase identified 12,113 commercial insurance agents and brokers 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?

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

Which city has the most commercial insurance agents and brokers?

New York leads with 181 headquartered companies, followed by Rolling Meadows (168) and Houston (164).

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 195,653 verified decision-maker contacts tracked across these 12,113 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 16, 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.