Company lists · Data refreshed October 2026

Top 25 Marine liability insurance brokers worldwide

RevenueBase identified 9,424 company matches for marine liability insurance brokers worldwide as of October 2026 and tracks 201,075 professional contacts across them, including 84,995 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers company matches for marine liability insurance brokers worldwide, 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. Country and city lists for marine liability insurance brokers follow the table.

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
9,424Companies
201,075Contacts tracked
84,995Verified emails
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The 25 largest marine liability insurance brokers worldwide

Ranked by team size
Top 25 of 9,424 company matches for marine liability insurance brokers worldwide, 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 matchParis, FranceHQ recorded Oct 18, 20261,001-5,0002,722 contacts →

Exact match

“With 4,400 employees, SMABTP provides insurance coverage for over clients and members, meeting all their insurance needs, from businesses, professionals, artisans, and executives…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0002,651 contacts →

Exact match

“We are a specialty insurer with more than three decades of experience in providing clients with the highest standards of underwriting and claims service worldwide.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0002,331 contacts →

Exact match

“Howden Insurance Brokers Ltd is a leading provider of insurance broking, risk consulting, and employee benefits advice.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11Exact matchPorto, PortugalHQ recorded Oct 18, 20261,001-5,0002,315 contacts →

Exact match

“A MDS é um grupo multinacional com mais de 40 anos de experiência em corretagem de seguros, resseguros, consultoria de riscos e gestão de benefícios.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12Exact matchSao Paulo, BrazilHQ recorded Oct 18, 2026501-1,0001,930 contacts →

Exact match

“Sompo Seguros S.A is a subsidiary of Sompo International, the company responsible for the insurance and reinsurance operations of the Sompo Holdings Group outside Japan.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13Exact 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
14Exact matchWola, PolandHQ recorded Oct 18, 20261,001-5,0001,799 contacts →

Exact match

“WARTA Insurance and Reinsurance Company maintains a steady position as the second largest insurer on the market.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact 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
16Exact 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
17Exact 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
18Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0001,336 contacts →

Exact match

“For over four decades, BMS has transformed risk into progress, earning our place as one of the world’s leading insurance and reinsurance brokers.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact 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
20Exact 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
21Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,0001,133 contacts →

Exact match

“Our reputation as the finest advocates in the business comes from our exceptional people delivering exceptional results for over 120 years.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 18, 20261,001-5,000970 contacts →

Exact match

“Our history has made us.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchHamburg, GermanyHQ recorded Oct 18, 20261,001-5,000749 contacts →

Exact match

“Deutschlands größter inhabergeführter, unabhängiger Versicherungsmakler und Risk Consultant Mehr als 145 Jahre Erfahrung in fast allen Branchen Systemhaus für Risikolösungen mit…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Oct 18, 2026501-1,000710 contacts →

Exact match

“Tysers is a leading independent Lloyd’s insurance broker.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact 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

Showing 25 of 9,424 marine liability insurance brokers worldwide

See the full list, filter by size, metro and specialty, and access 84,995 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine liability insurance brokers worldwide at a glance

As of Oct 18, 2026
42.3%Verified-email coverage
21.3Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · Sao Paulo
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
5,127
11-50
3,069
51-200
797
201-500
208
501-1,000
59
1,001-5,000
58
5,001-10,000
12
10001+
27

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for marine liability insurance brokers are linked below.
What qualifies
Company records worldwide 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. 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 84,995 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 location

59 lists · largest first

Every Marine liability insurance brokers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 worldwide?

RevenueBase identified 9,424 company matches for marine liability insurance brokers worldwide 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 country has the most marine liability insurance brokers?

Brazil leads with 1,290 companies, followed by the United States (1,120) and the United Kingdom (811). Every marine liability insurance brokers list by country and city is linked on this page.

Which city has the most marine liability insurance brokers?

Sao Paulo leads with 349 company records, followed by London (219) and Paris (93).

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 84,995 professional contacts with verified work emails tracked across these 9,424 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.