Company lists · Data refreshed September 2026

Top 25 Professional liability insurance brokers worldwide

Name: Professional liability insurance brokers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 17,370 companies tracked

RevenueBase identified 17,370 professional liability insurance brokers worldwide as of September 2026 and tracks 425,779 professional contacts across them, including 193,517 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 professional liability 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 17, 2026. Country and city lists for professional liability 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 17, 2026 86% judged on-target in blind review

17,370Companies

425,779Contacts tracked

193,517Verified emails

0Mobile numbers

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The 25 largest professional liability insurance brokers worldwide

Ranked by team size

Top 25 of 17,370 professional liability insurance brokers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to professional liability 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	MARSH	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
2	HUB International	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	10001+	14,217 contacts →
	Indirect evidence “Hi, we’re HUB.” Source: RevenueBase Database · checked Sep 17, 2026
3	Lockton	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	10001+	13,482 contacts →
	Indirect evidence “What makes Lockton stand apart is also what makes us better: independence.” Source: RevenueBase Database · checked Sep 17, 2026
4	USI Insurance Services	Strong evidence	Valhalla, NY, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
5	Marsh Mclennan Agency	Partial evidence	White Plains, NY, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
6	Alliant Insurance Services	Strong evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
7	Assuredpartners	Indirect evidence	Rolling Meadows, IL, United StatesHQ checked Sep 17, 2026	10001+	4,282 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
8	Nfp, An AON Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	5,001-10,000	4,119 contacts →
	Indirect evidence “NFP, an Aon company, helps companies and individuals address today’s most significant Risk Capital and Human Capital challenges.” Source: RevenueBase Database · checked Sep 17, 2026
9	GUY Carpenter	Partial evidence	New York, NY, United StatesHQ checked Sep 17, 2026	1,001-5,000	4,072 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 17, 2026
10	HDI Global SE	Partial evidence	Hannover, GermanyHQ checked Sep 17, 2026	5,001-10,000	3,763 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 17, 2026
11	Markel	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,151 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 17, 2026
12	Mcgriff	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	1,001-5,000	3,021 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 17, 2026
13	CRC Group	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,959 contacts →
	Indirect evidence “CRC Group is all about progress.” Source: RevenueBase Database · checked Sep 17, 2026
14	Arch Insurance Group INC	Partial evidence	Jersey City, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,704 contacts →
	Partial evidence “Arch Insurance Group Inc, a division of Arch Capital Group Ltd.(ACGL), is a market-leading specialty insurer.” Source: RevenueBase Database · checked Sep 17, 2026
15	Smabtp	Strong evidence	Paris, FranceHQ checked Sep 17, 2026	1,001-5,000	2,629 contacts →
	Strong evidence “With 4,400 employees, SMABTP provides insurance coverage for over clients and members, meeting all their insurance needs, from businesses, professionals, artisans, and executives…” Source: RevenueBase Database · checked Sep 17, 2026
16	Beazley	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	2,564 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
17	Allianz Global Corporate & Specialty Agcs	Indirect evidence	Unterföhring, GermanyHQ checked Sep 17, 2026	1,001-5,000	2,499 contacts →
	Indirect evidence “We are now Allianz Commercial!” Source: RevenueBase Database · checked Sep 17, 2026
18	IMA Financial Group, INC	Strong evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,484 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 17, 2026
19	The Baldwin Group	Partial evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,376 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 17, 2026
20	Risk Strategies Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	5,001-10,000	2,206 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 17, 2026
21	Howden Insurance Brokers Limited	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	2,183 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 17, 2026
22	MDS Group	Indirect evidence	Porto, PortugalHQ checked Sep 17, 2026	1,001-5,000	2,124 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 17, 2026
23	Westland Insurance Group LTD	Strong evidence	Surrey, BC, CanadaHQ checked Sep 17, 2026	1,001-5,000	1,870 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 17, 2026
24	Swiss RE Corporate Solutions	Partial evidence	Zurich, SwitzerlandHQ checked Sep 17, 2026	1,001-5,000	1,842 contacts →
	Partial 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 17, 2026
25	Berkshire Hathaway Specialty Insurance	Partial evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,799 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: professional liability insurance brokers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names professional liability insurance brokers.
Partial evidence: Its own public description names part of professional liability insurance brokers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name professional liability insurance brokers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 17,370 professional liability insurance brokers worldwide

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Professional liability insurance brokers worldwide at a glance

As of Sep 17, 2026

45.5%Verified-email coverage

24.5Average contacts per company

1-10Median size (employees)

5.1%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

9,935

11-50

5,248

51-200

1,293

201-500

297

501-1,000

1,001-5,000

134

5,001-10,000

10001+

226

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 professional liability 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: 39 countries, largest first: the United States, Brazil, France, the United Kingdom, Germany, Spain, Italy, Australia, Canada, Belgium and 29 more. Country and city lists for professional liability insurance brokers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “professional liability 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 professional liability 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 professional liability 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, 193,517 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 17, 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.

Professional liability insurance brokers by location

80 lists · largest first

Every Professional 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 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 professional liability 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 professional liability insurance brokers are there worldwide?

RevenueBase identified 17,370 professional liability 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 professional liability insurance brokers?

The United States leads with 4,627 companies, followed by Brazil (3,100) and France (1,254). Every professional liability insurance brokers list by country and city is linked on this page.

Which city has the most professional liability insurance brokers?

Sao Paulo leads with 888 headquartered companies, followed by London (259) and Rio De Janeiro (223).

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 193,517 verified decision-maker contacts tracked across these 17,370 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 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 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.