Company lists · Data refreshed September 2026

Top 25 Association insurance brokers based in the United States

Name: Association insurance brokers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 12,304 companies tracked

RevenueBase identified 12,304 association insurance brokers headquartered in the United States as of September 2026 and tracks 296,729 professional contacts across them, including 147,458 with verified work emails. New York is the largest hub.

This list covers association insurance brokers headquartered in the United States, 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 30, 2026.

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 30, 2026 86% judged on-target in blind review

12,304Companies

296,729Contacts tracked

147,458Verified emails

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The 25 largest association insurance brokers based in the United States

Ranked by team size

Top 25 of 12,304 association insurance brokers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to association 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 30, 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 30, 2026
2	HUB International	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	10001+	14,217 contacts →
	Indirect evidence “Hi, we’re HUB.” Source: RevenueBase Database · checked Sep 30, 2026
3	Lockton	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 30, 2026	10001+	13,482 contacts →
	Indirect evidence “What makes Lockton stand apart is also what makes us better: independence.” Source: RevenueBase Database · checked Sep 30, 2026
4	USI Insurance Services	Strong evidence	Valhalla, NY, United StatesHQ checked Sep 30, 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 30, 2026
5	Marsh Mclennan Agency	Partial evidence	White Plains, NY, United StatesHQ checked Sep 30, 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 30, 2026
6	Alliant Insurance Services	Strong evidence	Irvine, CA, United StatesHQ checked Sep 30, 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 30, 2026
7	Assuredpartners	Indirect evidence	Rolling Meadows, IL, United StatesHQ checked Sep 30, 2026	10001+	4,282 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
8	Nfp, An AON Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 30, 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 30, 2026
9	GUY Carpenter	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 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 30, 2026
10	Mercury Insurance	Indirect evidence	Brea, CA, United StatesHQ checked Sep 30, 2026	5,001-10,000	3,186 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 30, 2026
11	Markel	Partial evidence	Glen Allen, VA, United StatesHQ checked Sep 30, 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 30, 2026
12	Mcgriff	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 30, 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 30, 2026
13	CRC Group	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	5,001-10,000	2,959 contacts →
	Indirect evidence “CRC Group is all about progress.” Source: RevenueBase Database · checked Sep 30, 2026
14	IMA Financial Group, INC	Strong evidence	Denver, CO, United StatesHQ checked Sep 30, 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 30, 2026
15	The Baldwin Group	Partial evidence	Tampa, FL, United StatesHQ checked Sep 30, 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 30, 2026
16	Higginbotham	Partial evidence	Fort Worth, TX, United StatesHQ checked Sep 30, 2026	1,001-5,000	2,374 contacts →
	Partial evidence “Higginbotham is an employee-owned leader in insurance, financial services and HR/employee benefits.” Source: RevenueBase Database · checked Sep 30, 2026
17	Selectquote Insurance Services	Partial evidence	Overland Park, KS, United StatesHQ checked Sep 30, 2026	1,001-5,000	2,324 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 30, 2026
18	Risk Strategies Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 30, 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 30, 2026
19	Berkshire Hathaway Specialty Insurance	Partial evidence	Boston, MA, United StatesHQ checked Sep 30, 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 30, 2026
20	Risk Placement Services, INC	Indirect evidence	Rolling Meadows, IL, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,646 contacts →
	Indirect evidence “At Risk Placement Services, we help you come through for your clients!” Source: RevenueBase Database · checked Sep 30, 2026
21	Alera Group, INC	Partial evidence	Deerfield, IL, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,643 contacts →
	Partial evidence “Alera Group is a growing leader, reimagining the complex risk management, insurance and financial services delivery experience through intentional collaboration connecting clients…” Source: RevenueBase Database · checked Sep 30, 2026
22	Insurance Office Of America	Strong evidence	Longwood, FL, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,431 contacts →
	Strong evidence “Insurance Office of America (IOA) is the fourth largest privately held insurance brokerage in the United States.” Source: RevenueBase Database · checked Sep 30, 2026
23	Hylant	Strong evidence	Toledo, OH, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,258 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
24	World Insurance Associates LLC	Indirect evidence	Iselin, NJ, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,181 contacts →
	Indirect evidence “World is a leading financial services organization that uses its vast resources and industry expertise to empower people to make informed decisions to improve their risk…” Source: RevenueBase Database · checked Sep 30, 2026
25	Holmes Murphy	Indirect evidence	Waukee, IA, United StatesHQ checked Sep 30, 2026	501-1,000	1,171 contacts →
	Indirect evidence “Independence isn’t just our structure, it’s our mindset.” Source: RevenueBase Database · checked Sep 30, 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: association 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 association insurance brokers.
Partial evidence: Its own public description names part of association insurance brokers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name association 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 12,304 association insurance brokers based in the United States

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Association insurance brokers based in the United States at a glance

As of Sep 30, 2026

49.7%Verified-email coverage

24.1Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · New York

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

7,410

11-50

3,654

51-200

709

201-500

129

501-1,000

1,001-5,000

5,001-10,000

10001+

211

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 12,304 companies.

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 association 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “association 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 association 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 association insurance brokers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 147,458 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 30, 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.

Association insurance brokers by metro

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 association 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 association insurance brokers are there based in the United States?

RevenueBase identified 12,304 association insurance brokers headquartered in the United States 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 city has the most association insurance brokers?

New York leads with 176 headquartered companies, followed by Rolling Meadows (165) and Houston (146).

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 147,458 verified decision-maker contacts tracked across these 12,304 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 30, 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.