Company lists · Data refreshed September 2026
Top 25 Insurance brokerage firms based in the United States
RevenueBase identified 17,022 insurance brokerage firms headquartered in the United States as of September 2026 and tracks 468,018 professional contacts across them, including 211,555 with verified work emails. New York is the largest hub.
This list covers insurance brokerage firms 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 17, 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.
The 25 largest insurance brokerage firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 32,682 contacts → | ||||
Partial evidence “Travelers provides insurance coverage to protect the things that are important to you – your home, your car, your valuables and your business.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 14,217 contacts → | ||||
Indirect evidence “Hi, we’re HUB.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 13,482 contacts → | ||||
Indirect evidence “What makes Lockton stand apart is also what makes us better: independence.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 8,988 contacts → | ||||
Partial evidence “Zurich North America is one of the largest providers of insurance solutions and services to businesses and individuals.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6,984 contacts → | ||||
Indirect evidence “CNA is one of the largest U.S.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5,419 contacts → | ||||
Indirect evidence “The Kemper family of companies is one of the nation’s leading specialized insurers.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 5,132 contacts → | ||||
Partial evidence “Rooted in our commitment to be with you, every step, The Hanover Insurance Group, Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4,926 contacts → | ||||
Partial evidence “Amwins is the largest wholesale distributor of specialty insurance products and services in the U.S.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4,282 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3,478 contacts → | ||||
Indirect evidence “OneDigital’s team of fierce advocates helps businesses and individuals achieve their aspirations of health, success and financial security.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3,060 contacts → | ||||
Indirect evidence “With 100+ years of experience across leading industries, We apply an innovation mindset, agile approach, And a global team with local expertise wherever you operate.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2,959 contacts → | ||||
Indirect evidence “CRC Group is all about progress.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2,955 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 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2,931 contacts → | ||||
Partial evidence “At Selective, we maintain a commitment to provide unique insurance solutions that help keep the families and businesses of our communities protected.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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, 2026Thanks. The Data Team will review it. | |||||
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: insurance brokerage firms. 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 insurance brokerage firms.
- Partial evidence
- Its own public description names part of insurance brokerage firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name insurance brokerage firms. 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 17,022 insurance brokerage firms based in the United States
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Insurance brokerage firms based in the United States at a glance
As of Sep 17, 2026Companies by employee count
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 17,022 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 insurance brokerage firms, 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 “insurance brokerage firms”. 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 insurance brokerage firms), 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 insurance brokerage firms, 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, 211,555 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.
Insurance brokerage firms by metro
- Insurance brokerage firms in New York260
- Insurance brokerage firms in Houston220
- Insurance brokerage firms in Rolling Meadows178
- Insurance brokerage firms in Miami165
- Insurance brokerage firms in Dallas164
- Insurance brokerage firms in Chicago140
- Insurance brokerage firms in Los Angeles123
- Insurance brokerage firms in Tampa123
- Insurance brokerage firms in Atlanta117
- Insurance brokerage firms in San Diego111
- Insurance brokerage firms in Phoenix91
- Insurance brokerage firms in Scottsdale91
- Insurance brokerage firms in Orlando88
- Insurance brokerage firms in Austin87
- Insurance brokerage firms in Denver84
- Insurance brokerage firms in Las Vegas84
- Insurance brokerage firms in San Antonio83
- Insurance brokerage firms in Charlotte82
- Insurance brokerage firms in Indianapolis66
- Insurance brokerage firms in Columbia63
- Insurance brokerage firms in Fort Lauderdale57
- Insurance brokerage firms in Boca Raton55
- Insurance brokerage firms in Cincinnati55
- Insurance brokerage firms in Jacksonville55
- Insurance brokerage firms in Omaha55
- Insurance brokerage firms in San Francisco54
- Insurance brokerage firms in Irvine53
- Insurance brokerage firms in Pittsburgh52
- Insurance brokerage firms in Springfield51
- Insurance brokerage firms in Portland49
- Insurance brokerage firms in Columbus48
- Insurance brokerage firms in Greenville48
- Insurance brokerage firms in Louisville48
- Insurance brokerage firms in Nashville48
- Insurance brokerage firms in Tulsa47
- Insurance brokerage firms in Grand Rapids45
- Insurance brokerage firms in Plano45
- Insurance brokerage firms in Philadelphia44
- Insurance brokerage firms in Seattle44
- Insurance brokerage firms in Arlington42
- Insurance brokerage firms in Raleigh42
- Insurance brokerage firms in Cleveland41
- Insurance brokerage firms in Oklahoma City41
- Insurance brokerage firms in Rochester41
- Insurance brokerage firms in Boston40
- Insurance brokerage firms in Overland Park40
- Insurance brokerage firms in Richmond40
- Insurance brokerage firms in Birmingham39
- Insurance brokerage firms in Knoxville39
- Insurance brokerage firms in Sacramento39
- Insurance brokerage firms in Fort Worth38
- Insurance brokerage firms in Salt Lake City38
- Insurance brokerage firms in San Jose37
- Insurance brokerage firms in Kansas City35
- Insurance brokerage firms in Lafayette35
- Insurance brokerage firms in Lexington35
- Insurance brokerage firms in Melville35
- Insurance brokerage firms in Mesa35
- Insurance brokerage firms in Newport Beach35
- Insurance brokerage firms in Memphis34
- Insurance brokerage firms in Naples34
- Insurance brokerage firms in Troy34
- Insurance brokerage firms in Washington34
- Insurance brokerage firms in Minneapolis33
- Insurance brokerage firms in Roseville32
- Insurance brokerage firms in Buffalo31
- Insurance brokerage firms in Worcester31
- Insurance brokerage firms in Fort Myers30
- Insurance brokerage firms in Huntington Beach30
- Insurance brokerage firms in Jackson30
- Insurance brokerage firms in Lakewood30
- Insurance brokerage firms in Clearwater29
- Insurance brokerage firms in Marietta29
- Insurance brokerage firms in Mckinney29
- Insurance brokerage firms in Pasadena29
- Insurance brokerage firms in Us Rolling Meadows29
- Insurance brokerage firms in West Palm Beach29
- Insurance brokerage firms in Wilmington29
- Insurance brokerage firms in Bellevue28
- Insurance brokerage firms in Lancaster28
- Insurance brokerage firms in Little Rock28
- Insurance brokerage firms in Richardson28
- Insurance brokerage firms in Woodland Hills28
- Insurance brokerage firms in Alpharetta27
- Insurance brokerage firms in Colorado Springs27
- Insurance brokerage firms in Englewood27
- Insurance brokerage firms in Franklin27
- Insurance brokerage firms in Fresno27
- Insurance brokerage firms in Madison27
- Insurance brokerage firms in Westlake Village27
- Insurance brokerage firms in Baton Rouge26
- Insurance brokerage firms in Brooklyn26
- Insurance brokerage firms in Carlsbad26
- Insurance brokerage firms in Frisco26
- Insurance brokerage firms in Irving26
- Insurance brokerage firms in Metairie26
- Insurance brokerage firms in Tucson26
- Insurance brokerage firms in Alexandria25
- Insurance brokerage firms in Baltimore25
- Insurance brokerage firms in Glendale25
- Insurance brokerage firms in Katy25
- Insurance brokerage firms in Lincoln25
- Insurance brokerage firms in Littleton25
- Insurance brokerage firms in Wichita25
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 insurance brokerage firms, 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 insurance brokerage firms are there based in the United States?
RevenueBase identified 17,022 insurance brokerage firms 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?
Travelers, headquartered in New York, tops this list with the largest team on record.
Which city has the most insurance brokerage firms?
New York leads with 260 headquartered companies, followed by Houston (220) and Rolling Meadows (178).
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 211,555 verified decision-maker contacts tracked across these 17,022 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.
Ready to reach these companies? Verified emails and direct dials for all 17,022 insurance brokerage firms 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 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.
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