Company lists · Data refreshed October 2026

Top 25 Medical malpractice insurance brokers based in the United States

RevenueBase identified 1,959 company matches for medical malpractice insurance brokers associated with the United States as of October 2026 and tracks 178,861 professional contacts across them, including 91,122 with verified work emails. New York is the largest hub.

This list covers company matches for medical malpractice 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 October 18, 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 18, 2026 How this list was built
1,959Companies
178,861Contacts tracked
91,122Verified emails
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The 25 largest medical malpractice insurance brokers based in the United States

Ranked by team size
Top 25 of 1,959 company matches for medical malpractice insurance brokers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChicago, IL, United StatesHQ recorded Oct 18, 202610001+14,807 contacts →

Exact match

“Hi, we’re HUB.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchDallas, TX, United StatesHQ recorded Oct 18, 202610001+14,330 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchValhalla, NY, United StatesHQ recorded Oct 18, 202610001+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 18, 2026 · View company records in RevenueBase
4Exact matchWhite Plains, NY, United StatesHQ recorded Oct 18, 202610001+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 18, 2026 · View company records in RevenueBase
5Exact matchIrvine, CA, United StatesHQ recorded Oct 18, 202610001+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 18, 2026 · View company records in RevenueBase
6Exact matchIrvine, CA, United StatesHQ recorded Oct 18, 20261,001-5,0003,641 contacts →

Exact match

“CorVel is a nationally recognized claims management and managed care provider with over 30 years of experience in the industry.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchGlen Allen, VA, United StatesHQ recorded Oct 18, 20261,001-5,0003,224 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 · Oct 18, 2026 · View company records in RevenueBase
8Exact matchCharlotte, NC, United StatesHQ recorded Oct 18, 20261,001-5,0002,827 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 · Oct 18, 2026 · View company records in RevenueBase
9Exact matchDenver, CO, United StatesHQ recorded Oct 18, 20261,001-5,0002,610 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 · Oct 18, 2026 · View company records in RevenueBase
10Exact matchTampa, FL, United StatesHQ recorded Oct 18, 20261,001-5,0002,413 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 · Oct 18, 2026 · View company records in RevenueBase
11Exact matchDeerfield, IL, United StatesHQ recorded Oct 18, 20261,001-5,0001,910 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 · Oct 18, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Oct 18, 20261,001-5,0001,813 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 · Oct 18, 2026 · View company records in RevenueBase
13Exact matchBoston, MA, United StatesHQ recorded Oct 18, 20265,001-10,0001,635 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 · Oct 18, 2026 · View company records in RevenueBase
14Exact matchLongwood, FL, United StatesHQ recorded Oct 18, 20261,001-5,0001,522 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 · Oct 18, 2026 · View company records in RevenueBase
15Exact matchToledo, OH, United StatesHQ recorded Oct 18, 20261,001-5,0001,287 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 · Oct 18, 2026 · View company records in RevenueBase
16Exact matchCanoga Park, CA, United StatesHQ recorded Oct 18, 2026n/a1,188 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 · Oct 18, 2026 · View company records in RevenueBase
17Exact matchWaukee, IA, United StatesHQ recorded Oct 18, 2026501-1,0001,187 contacts →

Exact match

“Independence isn’t just our structure, it’s our mindset.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchChicago, IL, United StatesHQ recorded Oct 18, 20265,001-10,0001,168 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 · Oct 18, 2026 · View company records in RevenueBase
19Exact matchMiddleton, WI, United StatesHQ recorded Oct 18, 2026201-5001,163 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 · Oct 18, 2026 · View company records in RevenueBase
20Exact matchCedar City, UT, United StatesHQ recorded Oct 18, 20261,001-5,0001,033 contacts →

Exact match

“Ranked among the top three spots for growth due to acquisition in the property & casualty (P&C) space, Leavitt Group stands as one of the top privately held insurance brokerages…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchLindon, UT, United StatesHQ recorded Oct 18, 20261,001-5,0001,021 contacts →

Exact match

“A top 20 U.S.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchNapa, CA, United StatesHQ recorded Oct 18, 2026501-1,0001,008 contacts →

Exact match

“Founded and led by physicians, The Doctors Company is committed to advancing, protecting, and rewarding the practice of good medicine.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchFort Wayne, IN, United StatesHQ recorded Oct 18, 2026501-1,0001,003 contacts →

Exact match

“As the nation’s first provider of malpractice insurance, MedPro Group has served the healthcare community since 1899 – providing customized insurance and risk solutions across the…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchRichmond, VA, United StatesHQ recorded Oct 18, 20261,001-5,000993 contacts →

Exact match

“It's Personal.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchDubuque, IA, United StatesHQ recorded Oct 18, 20261,001-5,000974 contacts →

Exact match

“Cottingham & Butler is the 3rd largest privately and independently held insurance broker in the U.S.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 1,959 medical malpractice insurance brokers based in the United States

See the full list, filter by size, metro and specialty, and access 91,122 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Medical malpractice insurance brokers based in the United States at a glance

As of Oct 18, 2026
50.9%Verified-email coverage
91.3Average contacts per company
11-50Median size (employees)
3.5%Largest-city concentration · New York
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
900
11-50
657
51-200
230
201-500
51
501-1,000
27
1,001-5,000
43
5,001-10,000
16
10001+
33

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 1,959 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 “medical malpractice 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 91,122 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 18, 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.

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

How many medical malpractice insurance brokers are there based in the United States?

RevenueBase identified 1,959 company matches for medical malpractice insurance brokers 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?

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

Which city has the most medical malpractice insurance brokers?

New York leads with 68 company records, followed by Chicago (30) and Houston (30).

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 91,122 professional contacts with verified work emails tracked across these 1,959 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 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 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.