Company lists · Data refreshed September 2026

Top 25 Professional liability insurance brokers based in the United States

Name: Professional liability insurance brokers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 4,627 companies tracked

RevenueBase identified 4,627 company matches for professional liability insurance brokers associated with the United States as of September 2026 and tracks 257,562 professional contacts across them, including 130,073 with verified work emails. Rolling Meadows is the largest hub.

This list covers company matches for professional liability insurance brokers 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 September 17, 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 Sep 17, 2026 How this list was built

4,627Companies

257,562Contacts tracked

130,073Verified emails

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The 25 largest professional liability insurance brokers based in the United States

Ranked by team size

Top 25 of 4,627 company matches for professional liability insurance brokers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	MARSH	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	10001+	15,852 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 · Sep 17, 2026 · View company records in RevenueBase
2	HUB International	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	10001+	14,217 contacts →
	Exact match “Hi, we’re HUB.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Lockton	Exact match	Dallas, TX, United StatesHQ recorded Sep 17, 2026	10001+	13,482 contacts →
	Exact match “What makes Lockton stand apart is also what makes us better: independence.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	USI Insurance Services	Exact match	Valhalla, NY, United StatesHQ recorded Sep 17, 2026	10001+	10,303 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 · Sep 17, 2026 · View company records in RevenueBase
5	Marsh Mclennan Agency	Exact match	White Plains, NY, United StatesHQ recorded Sep 17, 2026	10001+	9,086 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 · Sep 17, 2026 · View company records in RevenueBase
6	Alliant Insurance Services	Exact match	Irvine, CA, United StatesHQ recorded Sep 17, 2026	10001+	6,091 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 · Sep 17, 2026 · View company records in RevenueBase
7	Assuredpartners	Exact match	Rolling Meadows, IL, United StatesHQ recorded Sep 17, 2026	10001+	4,282 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Nfp, An AON Company	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	5,001-10,000	4,119 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 · Sep 17, 2026 · View company records in RevenueBase
9	GUY Carpenter	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	1,001-5,000	4,072 contacts →
	Exact match “At Guy Carpenter, a Marsh business, we deliver a powerful combination of (re)insurance broking expertise, capital solutions, global analytics, advisory, and client support…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Markel	Exact match	Glen Allen, VA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	3,151 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Mcgriff	Exact match	Charlotte, NC, United StatesHQ recorded Sep 17, 2026	1,001-5,000	3,021 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	CRC Group	Exact match	Charlotte, NC, United StatesHQ recorded Sep 17, 2026	5,001-10,000	2,959 contacts →
	Exact match “CRC Group is all about progress.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Arch Insurance Group INC	Exact match	Jersey City, NJ, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,704 contacts →
	Exact match “Arch Insurance Group Inc, a division of Arch Capital Group Ltd.(ACGL), is a market-leading specialty insurer.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	IMA Financial Group, INC	Exact match	Denver, CO, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,484 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	The Baldwin Group	Exact match	Tampa, FL, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,376 contacts →
	Exact match “The Baldwin Group is a cohesive group of experts in business insurance, employee benefits, retirement planning, and all areas of private and personal insurance.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Risk Strategies Company	Exact match	Boston, MA, United StatesHQ recorded Sep 17, 2026	5,001-10,000	2,206 contacts →
	Exact match “At Risk Strategies, part of the Brown & Brown team, we help our clients protect those things that matter most to them.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Berkshire Hathaway Specialty Insurance	Exact match	Boston, MA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,799 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Alera Group, INC	Exact match	Deerfield, IL, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,643 contacts →
	Exact match “Alera Group is a growing leader, reimagining the complex risk management, insurance and financial services delivery experience through intentional collaboration connecting clients…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Insurance Office Of America	Exact match	Longwood, FL, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,431 contacts →
	Exact match “Insurance Office of America (IOA) is the fourth largest privately held insurance brokerage in the United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Hylant	Exact match	Toledo, OH, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,258 contacts →
	Exact match “A multi-year winner of Best Places to Work in Insurance (2009-2025), Hylant is a full-service insurance brokerage with offices in Florida, Georgia, Illinois, Indiana, Michigan…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Holmes Murphy	Exact match	Waukee, IA, United StatesHQ recorded Sep 17, 2026	501-1,000	1,171 contacts →
	Exact match “Independence isn’t just our structure, it’s our mindset.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Acrisure	Exact match	Canoga Park, CA, United StatesHQ recorded Sep 17, 2026	n/a	1,147 contacts →
	Exact match “Founded in 1972, Allen Lawrence & Associates, LLC.(AL & A) has the distinct advantage of active participation by its principals.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Marshall Dennehey	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,147 contacts →
	Exact match “Welcome to our company page!” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Capspecialty	Exact match	Middleton, WI, United StatesHQ recorded Sep 17, 2026	201-500	1,145 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Ryan Specialty	Exact match	Chicago, IL, United StatesHQ recorded Sep 17, 2026	5,001-10,000	1,079 contacts →
	Exact match “Ryan Specialty (NYSE: RYAN) is an international specialty insurance firm that provides distribution, underwriting, product development, administration and risk management services…” Recorded in the RevenueBase company graph · Sep 17, 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 “professional liability insurance brokers”. 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 4,627 professional liability insurance brokers based in the United States

See the full list, filter by size, metro and specialty, and access 130,073 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional liability insurance brokers based in the United States at a glance

As of Sep 17, 2026

50.5%Verified-email coverage

55.7Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · Rolling Meadows

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,187

11-50

1,544

51-200

450

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

207

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 4,627 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 “professional liability insurance brokers” 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 130,073 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 September 17, 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.

Professional liability insurance brokers 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 “professional liability insurance brokers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional liability insurance brokers are there based in the United States?

RevenueBase identified 4,627 company matches for professional liability insurance brokers associated with the United States as of September 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?

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

Which city has the most professional liability insurance brokers?

Rolling Meadows leads with 162 company records, followed by New York (160) and Houston (71).

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 130,073 professional contacts with verified work emails tracked across these 4,627 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 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 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.