Company lists · Data refreshed October 2026

Top 25 Marine liability insurance brokers based in the United States

RevenueBase identified 1,120 company matches for marine liability insurance brokers associated with the United States as of October 2026 and tracks 84,841 professional contacts across them, including 47,247 with verified work emails. New York is the largest hub.

This list covers company matches for marine 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 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
1,120Companies
84,841Contacts tracked
47,247Verified emails
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The 25 largest marine liability insurance brokers based in the United States

Ranked by team size
Top 25 of 1,120 company matches for marine liability 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 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
4Exact matchNew York, NY, United StatesHQ recorded Oct 18, 20261,001-5,0003,643 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 · Oct 18, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchCharlotte, NC, United StatesHQ recorded Oct 18, 20265,001-10,0003,207 contacts →

Exact match

“CRC Group is all about progress.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchChicago, IL, United StatesHQ recorded Oct 18, 20261,001-5,0003,006 contacts →

Exact match

“RT Specialty is a leading wholesale distributor of specialty insurance products and services and the wholesale broking specialty for Ryan Specialty.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchAtlanta, GA, United StatesHQ recorded Oct 18, 20261,001-5,0001,789 contacts →

Exact match

“Founded in 1932, McLarens is a leading independent global insurance services provider with offices and operations strategically located in 41 countries around the world.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact 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
11Exact 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
12Exact 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
13Exact 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
14Exact matchWalnut Creek, CA, United StatesHQ recorded Oct 18, 2026501-1,000691 contacts →

Exact match

“Heffernan Insurance Brokers, founded in 1988, is one of the largest independent insurance brokerage firms in the United States providing comprehensive business insurance, personal…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchCincinnati, OH, United StatesHQ recorded Oct 18, 20261,001-5,000685 contacts →

Exact match

“Core Specialty, through its subsidiary insurers, offers a diversified range of property, casualty, and marine insurance products for small to mid-sized businesses.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchOrmond Beach, FL, United StatesHQ recorded Oct 18, 20261,001-5,000574 contacts →

Exact match

“Foundation Risk Partners is one of the 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
17Exact matchPlantation, FL, United StatesHQ recorded Oct 18, 2026501-1,000492 contacts →

Exact match

“As an MGA, we offer a great deal of specialty products with professional service.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchDallas, TX, United StatesHQ recorded Oct 18, 2026201-500472 contacts →

Exact match

“Brown & Riding was founded in 1980 and is one of the largest wholesale insurance brokerage firms in the United States.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchPlymouth, MN, United StatesHQ recorded Oct 18, 2026201-500423 contacts →

Exact match

“North Risk Partners is an independent insurance brokerage and risk management advisory firm specializing in strategic solutions for businesses and individuals.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Oct 18, 2026201-500420 contacts →

Exact match

“Sterling Seacrest Pritchard brings together three of the most trusted names in the insurance to create the largest privately held insurance brokerage in the Southeast.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21Exact matchCharlotte, NC, United StatesHQ recorded Oct 18, 20265,001-10,000374 contacts →

Exact match

“TIH, the fifth largest insurance broker in the United States, offers highly consultative risk management services and nearly all types of coverage, including personal, small…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchAtlanta, GA, United StatesHQ recorded Oct 18, 2026501-1,000347 contacts →

Exact match

“At Oakbridge Insurance, our unwavering commitment to Excellence drives us to deliver tailored insurance solutions that meet each client's unique needs.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchAtlanta, GA, United StatesHQ recorded Oct 18, 20261,001-5,000335 contacts →

Exact match

“CRC Swett has over 100 years of experience in helping to mitigate the risks of doing business here and around the globe.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchGoldsboro, NC, United StatesHQ recorded Oct 18, 2026201-500333 contacts →

Exact match

“Atlantic Casualty Insurance Company (Atlantic Casualty) was formed by Strickland Insurance Group (SIG) in 1983 to underwrite a substantial book of non-standard personal auto.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchFarmington Hills, MI, United StatesHQ recorded Oct 18, 20261,001-5,000320 contacts →

Exact match

“At H.W.”

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

Showing 25 of 1,120 marine liability insurance brokers based in the United States

See the full list, filter by size, metro and specialty, and access 47,247 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Oct 18, 2026
55.7%Verified-email coverage
75.8Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · New York
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
512
11-50
392
51-200
123
201-500
29
501-1,000
14
1,001-5,000
24
5,001-10,000
7
10001+
18

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 1,120 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 “marine 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 47,247 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.

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

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

RevenueBase identified 1,120 company matches for marine liability 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 marine liability insurance brokers?

New York leads with 48 company records, followed by Houston (22) and Miami (22).

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 47,247 professional contacts with verified work emails tracked across these 1,120 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.

Ready to reach these companies? Verified emails and direct dials for all 1,120 marine liability insurance brokers based in the United States. Start with a free account, no credit card.

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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.