Company lists · Data refreshed September 2026

Top 25 Commercial insurance brokers worldwide

RevenueBase identified 25,000 commercial insurance brokers worldwide as of September 2026 and tracks 495,346 professional contacts across them, including 218,177 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers commercial insurance brokers worldwide, 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. Country and city lists for commercial insurance brokers follow the table.

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
25,000Companies
495,346Contacts tracked
218,177Verified emails
0Mobile numbers
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The 25 largest commercial insurance brokers worldwide

Ranked by team size
Top 25 of 25,000 commercial insurance brokers worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to commercial insurance 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
1Indirect 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
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 16, 202610001+14,217 contacts →

Indirect evidence

“Hi, we’re HUB.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect 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
4Strong 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
5Partial evidenceWhite Plains, NY, United StatesHQ checked Sep 16, 202610001+9,086 contacts →

Partial 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
6Strong 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
7Partial 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
8Indirect evidenceRolling Meadows, IL, United StatesHQ checked Sep 16, 202610001+4,282 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
9Partial 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
10Partial evidenceHannover, GermanyHQ checked Sep 16, 20265,001-10,0003,763 contacts →

Partial evidence

“HDI Global SE – Your Trusted Partner in Transformation Companies in the trading, manufacturing, and service industries need a reliable insurance partner.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect 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
12Partial 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
13Indirect 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
14Indirect 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
15Partial 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
16Partial evidenceUnterföhring, GermanyHQ checked Sep 16, 20261,001-5,0002,499 contacts →

Partial evidence

“We are now Allianz Commercial!”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong 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
18Partial 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
19Partial evidenceOverland Park, KS, United StatesHQ checked Sep 16, 20261,001-5,0002,324 contacts →

Partial evidence

“We help you keep your promises by shopping many highly rated insurance companies to find you the right coverage at the right price.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceBoston, MA, United StatesHQ checked Sep 16, 20265,001-10,0002,206 contacts →

Indirect evidence

“At Risk Strategies, part of the Brown & Brown team, we help our clients protect those things that matter most to them.”

Source: RevenueBase Database · checked Sep 16, 2026
21Strong evidenceLondon, United KingdomHQ checked Sep 16, 20261,001-5,0002,183 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidencePorto, PortugalHQ checked Sep 16, 20261,001-5,0002,124 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 16, 2026
23Strong evidenceMorristown, NJ, United StatesHQ checked Sep 16, 20261,001-5,0002,105 contacts →

Strong evidence

“Crum & Forster (C&F) provides market leading property & casualty, accident & health, specialty and standard commercial lines insurance solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidenceSurrey, BC, CanadaHQ checked Sep 16, 20261,001-5,0001,870 contacts →

Strong evidence

“From humble beginnings in 1980 as a single family-owned brokerage in Ladner, BC, Westland has grown to become one of the largest insurance brokerages in the country.”

Source: RevenueBase Database · checked Sep 16, 2026
25Strong evidenceZurich, SwitzerlandHQ checked Sep 16, 20261,001-5,0001,842 contacts →

Strong evidence

“Swiss Re Corporate Solutions provides a range of traditional and innovative commercial insurance products and risk-transfer solutions through a global team of commercial insurance…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 25,000 commercial insurance brokers worldwide

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Commercial insurance brokers worldwide at a glance

As of Sep 16, 2026
44.0%Verified-email coverage
19.8Average contacts per company
1-10Median size (employees)
4.9%Largest-city concentration · Sao Paulo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
14,683
11-50
7,404
51-200
1,751
201-500
419
501-1,000
125
1,001-5,000
172
5,001-10,000
30
10001+
239

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 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.
Coverage
47 countries, largest first: the United States, Brazil, the United Kingdom, Germany, France, Canada, Spain, Australia, Italy, Belgium and 37 more. Country and city lists for commercial insurance brokers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “commercial insurance 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 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 brokers, and records with no verified work email.
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, 218,177 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 brokers by location

108 lists · largest first

Every Commercial 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 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 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 brokers are there worldwide?

RevenueBase identified 25,000 commercial insurance brokers worldwide 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?

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

Which country has the most commercial insurance brokers?

The United States leads with 7,384 companies, followed by Brazil (4,519) and the United Kingdom (1,484). Every commercial insurance brokers list by country and city is linked on this page.

Which city has the most commercial insurance brokers?

Sao Paulo leads with 1226 headquartered companies, followed by Rio De Janeiro (296) and London (285).

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 218,177 verified decision-maker contacts tracked across these 25,000 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.