Company lists · Data refreshed October 2026

Top 25 Insurance advisory companies based in the United States

Name: Insurance advisory companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 8,007 companies tracked

RevenueBase identified 8,007 company matches for insurance advisory companies associated with the United States as of October 2026 and tracks 319,448 professional contacts across them, including 147,432 with verified work emails. Rolling Meadows is the largest hub.

This list covers company matches for insurance advisory companies associated with the United States, 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 16, 2026.

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 16, 2026 How this list was built

8,007Companies

319,448Contacts tracked

147,432Verified emails

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The 25 largest insurance advisory companies based in the United States

Ranked by team size

Top 25 of 8,007 company matches for insurance advisory companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mercer	Exact match	New York, NY, United StatesHQ recorded Oct 16, 2026	10001+	20,629 contacts →
	Exact match “At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	HUB International	Exact match	Chicago, IL, United StatesHQ recorded Oct 16, 2026	10001+	14,807 contacts →
	Exact match “Hi, we’re HUB.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3	Lockton	Exact match	Dallas, TX, United StatesHQ recorded Oct 16, 2026	10001+	14,330 contacts →
	Exact match “What makes Lockton stand apart is also what makes us better: independence.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	USI Insurance Services	Exact match	Valhalla, NY, United StatesHQ recorded Oct 16, 2026	10001+	10,601 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	Marsh Mclennan Agency	Exact match	White Plains, NY, United StatesHQ recorded Oct 16, 2026	10001+	9,548 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6	Zurich North America	Exact match	Schaumburg, IL, United StatesHQ recorded Oct 16, 2026	5,001-10,000	9,431 contacts →
	Exact match “Zurich North America is one of the largest providers of insurance solutions and services to businesses and individuals.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	MARSH	Exact match	New York, NY, United StatesHQ recorded Oct 16, 2026	10001+	8,763 contacts →
	Exact match “We help our clients and colleagues grow, and our communities thrive, by protecting and promoting Possibility.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	Oliver Wyman	Exact match	New York, NY, United StatesHQ recorded Oct 16, 2026	5,001-10,000	8,633 contacts →
	Exact match “At Oliver Wyman, a Marsh business, we bring deep industry insight, bold innovation, and a collaborative approach that cuts through complexity to help organizations navigate their…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	KROLL	Exact match	New York, NY, United StatesHQ recorded Oct 16, 2026	5,001-10,000	6,658 contacts →
	Exact match “As the leading independent provider of risk and financial advisory solutions, Kroll leverages our unique insights, data and technology to help clients stay ahead of complex…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	Alliant Insurance Services	Exact match	Irvine, CA, United StatesHQ recorded Oct 16, 2026	10001+	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 16, 2026 · View company records in RevenueBase
11	Milliman	Exact match	Seattle, WA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	4,396 contacts →
	Exact match “Milliman is among the world’s largest independent actuarial and consulting firms.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	Nfp, An AON Company	Exact match	New York, NY, United StatesHQ recorded Oct 16, 2026	5,001-10,000	4,359 contacts →
	Exact match “NFP, an Aon company, helps companies and individuals address today’s most significant Risk Capital and Human Capital challenges.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	GUY Carpenter	Exact match	New York, NY, United StatesHQ recorded Oct 16, 2026	1,001-5,000	3,643 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 16, 2026 · View company records in RevenueBase
14	Mercury Insurance	Exact match	Brea, CA, United StatesHQ recorded Oct 16, 2026	5,001-10,000	3,339 contacts →
	Exact match “At Mercury, we have been guided by our purpose to help people reduce risk and overcome unexpected events for more than 60 years.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	STARR	Exact match	New York, NY, United StatesHQ recorded Oct 16, 2026	1,001-5,000	3,303 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Markel	Exact match	Glen Allen, VA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	3,224 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 16, 2026 · View company records in RevenueBase
17	Mcgriff	Exact match	Charlotte, NC, United StatesHQ recorded Oct 16, 2026	1,001-5,000	2,827 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18	Assuredpartners	Exact match	Rolling Meadows, IL, United StatesHQ recorded Oct 16, 2026	10001+	2,771 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19	IMA Financial Group, INC	Exact match	Denver, CO, United StatesHQ recorded Oct 16, 2026	1,001-5,000	2,610 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20	The Baldwin Group	Exact match	Tampa, FL, United StatesHQ recorded Oct 16, 2026	1,001-5,000	2,413 contacts →
	Exact match “The Baldwin Group is a cohesive group of experts in business insurance, employee benefits, retirement planning, and all areas of private and personal insurance.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21	Alera Group, INC	Exact match	Deerfield, IL, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,910 contacts →
	Exact match “Alera Group is a growing leader, reimagining the complex risk management, insurance and financial services delivery experience through intentional collaboration connecting clients…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22	Berkshire Hathaway Specialty Insurance	Exact match	Boston, MA, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,813 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 16, 2026 · View company records in RevenueBase
23	Risk Strategies Company	Exact match	Boston, MA, United StatesHQ recorded Oct 16, 2026	5,001-10,000	1,635 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 16, 2026 · View company records in RevenueBase
24	Insurance Office Of America	Exact match	Longwood, FL, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,522 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 16, 2026 · View company records in RevenueBase
25	World Insurance Associates LLC	Exact match	Iselin, NJ, United StatesHQ recorded Oct 16, 2026	1,001-5,000	1,340 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “insurance advisory companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 8,007 insurance advisory companies based in the United States

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Insurance advisory companies based in the United States at a glance

As of Oct 16, 2026

46.2%Verified-email coverage

39.9Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · Rolling Meadows

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

4,596

11-50

2,419

51-200

517

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

223

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 8,007 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “insurance advisory companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 147,432 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 16, 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.

Insurance advisory companies by metro

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 “insurance advisory companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many insurance advisory companies are there based in the United States?

RevenueBase identified 8,007 company matches for insurance advisory companies associated with the United States 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?

Mercer tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most insurance advisory companies?

Rolling Meadows leads with 166 company records, followed by New York (155) and Houston (110).

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 147,432 professional contacts with verified work emails tracked across these 8,007 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 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 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.