Company lists · Data refreshed September 2026

Top 25 Actuary companies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 2,536 companies tracked

RevenueBase identified 2,536 actuary companies headquartered in the United States as of September 2026 and tracks 223,747 professional contacts across them, including 114,852 with verified work emails. Rolling Meadows is the largest hub.

This list covers actuary companies 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 21, 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 21, 2026 86% judged on-target in blind review

2,536Companies

223,747Contacts tracked

114,852Verified emails

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The 25 largest actuary companies based in the United States

Ranked by team size

Top 25 of 2,536 actuary companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to actuary companies: 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	Mercer	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	10001+	20,868 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
2	MARSH	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
3	USI Insurance Services	Indirect evidence	Valhalla, NY, United StatesHQ checked Sep 21, 2026	10001+	10,303 contacts →
	Indirect 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 21, 2026
4	Marsh Mclennan Agency	Indirect evidence	White Plains, NY, United StatesHQ checked Sep 21, 2026	10001+	9,086 contacts →
	Indirect 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 21, 2026
5	Oliver Wyman	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	5,001-10,000	8,230 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
6	KROLL	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	5,001-10,000	6,287 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
7	Alliant Insurance Services	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	10001+	6,091 contacts →
	Indirect 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 21, 2026
8	Verisk	Indirect evidence	Jersey City, NJ, United StatesHQ checked Sep 21, 2026	5,001-10,000	5,000 contacts →
	Indirect evidence “Verisk is a leading strategic data analytics and technology partner to the global insurance industry.” Source: RevenueBase Database · checked Sep 21, 2026
9	Amwins	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 21, 2026	5,001-10,000	4,926 contacts →
	Indirect evidence “Amwins is the largest wholesale distributor of specialty insurance products and services in the U.S.” Source: RevenueBase Database · checked Sep 21, 2026
10	Milliman	Strong evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,350 contacts →
	Strong evidence “Milliman is among the world’s largest independent actuarial and consulting firms.” Source: RevenueBase Database · checked Sep 21, 2026
11	Assuredpartners	Indirect evidence	Rolling Meadows, IL, United StatesHQ checked Sep 21, 2026	10001+	4,282 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
12	Nfp, An AON Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
13	GUY Carpenter	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	4,072 contacts →
	Indirect 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 21, 2026
14	Sentry	Indirect evidence	Stevens Point, WI, United StatesHQ checked Sep 21, 2026	5,001-10,000	3,963 contacts →
	Indirect evidence “Sentry Insurance got its start in 1904, when members of the Wisconsin Retail Hardware Association formed their own insurance company.” Source: RevenueBase Database · checked Sep 21, 2026
15	Markel	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	3,151 contacts →
	Indirect 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 21, 2026
16	Symetra	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,501 contacts →
	Indirect evidence “Symetra is a financial services company offering retirement solutions, life insurance and employee benefits that help you plan well, be well and live well.” Source: RevenueBase Database · checked Sep 21, 2026
17	IMA Financial Group, INC	Indirect evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,484 contacts →
	Indirect 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 21, 2026
18	Higginbotham	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,374 contacts →
	Indirect evidence “Higginbotham is an employee-owned leader in insurance, financial services and HR/employee benefits.” Source: RevenueBase Database · checked Sep 21, 2026
19	Risk Strategies Company	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 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 21, 2026
20	Berkshire Hathaway Specialty Insurance	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,799 contacts →
	Indirect 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 21, 2026
21	Alera Group, INC	Indirect evidence	Deerfield, IL, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,643 contacts →
	Indirect 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 21, 2026
22	World Insurance Associates LLC	Indirect evidence	Iselin, NJ, United StatesHQ checked Sep 21, 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 21, 2026
23	Holmes Murphy	Indirect evidence	Waukee, IA, United StatesHQ checked Sep 21, 2026	501-1,000	1,171 contacts →
	Indirect evidence “Independence isn’t just our structure, it’s our mindset.” Source: RevenueBase Database · checked Sep 21, 2026
24	SEGAL	Strong evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,149 contacts →
	Strong evidence “Segal is a leading employee-owned consulting firm with more than 1,100 professionals across North America, including 150+ credentialed actuaries.” Source: RevenueBase Database · checked Sep 21, 2026
25	Acrisure	Indirect evidence	Canoga Park, CA, United StatesHQ checked Sep 21, 2026	n/a	1,147 contacts →
	Indirect evidence “Founded in 1972, Allen Lawrence & Associates, LLC.(AL & A) has the distinct advantage of active participation by its principals.” Source: RevenueBase Database · checked Sep 21, 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: actuary companies. 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 actuary companies.
Partial evidence: Its own public description names part of actuary companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name actuary companies. 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 2,536 actuary companies based in the United States

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Actuary companies based in the United States at a glance

As of Sep 21, 2026

51.3%Verified-email coverage

88.2Average contacts per company

11-50Median size (employees)

6.0%Largest-city concentration · Rolling Meadows

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,129

11-50

812

51-200

256

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

198

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 2,536 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 actuary companies, 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 “actuary companies”. 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 actuary companies), 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 actuary companies, 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, 114,852 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 21, 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.

Actuary companies by metro

Actuary companies in Rolling Meadows151
Actuary companies in New York98
Actuary companies in Chicago51
Actuary companies in Houston38
Actuary companies in Miami33
Actuary companies in Atlanta31
Actuary companies in Dallas28
Actuary companies in Us Rolling Meadows26

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 actuary companies, 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 actuary companies are there based in the United States?

RevenueBase identified 2,536 actuary companies 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?

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

Which city has the most actuary companies?

Rolling Meadows leads with 151 headquartered companies, followed by New York (98) and Chicago (51).

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 114,852 verified decision-maker contacts tracked across these 2,536 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 21, 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.