Company lists · Data refreshed September 2026

Top 25 Auto insurance companies based in the United States

RevenueBase identified 3,525 auto insurance companies headquartered in the United States as of September 2026 and tracks 107,841 professional contacts across them, including 32,918 with verified work emails and 46,243 with mobile numbers. Houston is the largest hub.

This list covers auto insurance 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 6, 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 6, 2026 86% judged on-target in blind review
3,525Companies
107,841Contacts tracked
32,918Verified emails
46,243Mobile numbers
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The 25 largest auto insurance companies based in the United States

Ranked by team size
Top 25 of 3,525 auto insurance companies based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to auto insurance 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 6, 202610001+32,682 contacts →

“Travelers provides insurance coverage to protect the things that are important to you – your home, your car, your valuables and your business.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceBethesda, MD, United StatesHQ checked Sep 6, 202610001+28,539 contacts →

“At GEICO, we offer a rewarding career where your ambitions are met with endless possibilities.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceChicago, IL, United StatesHQ checked Sep 6, 20265,001-10,0005,419 contacts →

“The Kemper family of companies is one of the nation’s leading specialized insurers.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceBrea, CA, United StatesHQ checked Sep 6, 20265,001-10,0003,186 contacts →

“At Mercury, we have been guided by our purpose to help people reduce risk and overcome unexpected events for more than 60 years.”

Source: company website · checked Sep 6, 2026
5Partial evidenceHuntington Beach, CA, United StatesHQ checked Sep 6, 20261,001-5,0001,199 contacts →

“For more than 50 years, Acceptance Insurance has been helping people save money on their car insurance.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 20261,001-5,0001,178 contacts →

“Esurance has joined forces with Allstate and will no longer be posting updates or responses on this page.”

Source: company website · checked Sep 6, 2026
7Partial evidenceHuntington Beach, CA, United StatesHQ checked Sep 6, 20261,001-5,0001,106 contacts →

“Since 2008, our dedicated agents have helped thousands of people choose the best insurance plans for their needs, at a price they can afford.”

Source: company website · checked Sep 6, 2026
8Strong evidenceNashville, TN, United StatesHQ checked Sep 6, 20265,001-10,0001,080 contacts →

“Direct Auto Insurance was founded under the belief that everyone should be able to get the coverage they need, the services they want, and the respect they deserve, regardless of…”

Source: company website · checked Sep 6, 2026
9Indirect evidenceOxnard, CA, United StatesHQ checked Sep 6, 20261,001-5,0001,009 contacts →

“What started with a single store front in El Paso Texas in 1974 has grown to be the 18th Largest Hispanic Top 500 Owned and Operated Company in the United States.”

Source: company website · checked Sep 6, 2026
10Partial evidenceHuntington Beach, CA, United StatesHQ checked Sep 6, 20261,001-5,000954 contacts →

“Confie is the largest personal lines insurance agency in the US.”

Source: company website · checked Sep 6, 2026
11Partial evidenceNashville, TN, United StatesHQ checked Sep 6, 2026501-1,000863 contacts →

“The General Automobile Insurance Services, Inc.(The General®)- - is a licensed insurance agency that is a subsidiary of PGC Holdings Corp.(PGC).”

Source: company website · checked Sep 6, 2026
12Indirect evidenceOmaha, NE, United StatesHQ checked Sep 6, 2026501-1,000820 contacts →

“We are National Indemnity Company (NICO).”

Source: company website · checked Sep 6, 2026
13Strong evidenceRichardson, TX, United StatesHQ checked Sep 6, 2026501-1,000722 contacts →

“GAINSCO Auto Insurance® is a property and casualty insurance company concentrating on the non-standard personal auto insurance market, specializing in minimum-limits personal auto…”

Source: company website · checked Sep 6, 2026
14Strong evidenceWilmington, DE, United StatesHQ checked Sep 6, 20265,001-10,000719 contacts →

“21st Century Insurance specializes in providing customized auto insurance for each and every customer.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceIndependence, OH, United StatesHQ checked Sep 6, 20261,001-5,000718 contacts →

“Bristol West®: The Beginning It all started in Florida in 1973.”

Source: company website · checked Sep 6, 2026
16Partial evidenceRichfield, OH, United StatesHQ checked Sep 6, 2026501-1,000711 contacts →

“National Interstate Insurance Company, with our wholly owned subsidiary, Vanliner Insurance Company, provides highly innovative insurance solutions and world-class customer…”

Source: company website · checked Sep 6, 2026
17Strong evidenceSeattle, WA, United StatesHQ checked Sep 6, 2026501-1,000690 contacts →

“PEMCO Mutual Insurance provides outstanding service and coverage for autos, homes, renters and boats.”

Source: company website · checked Sep 6, 2026
18Partial evidenceCaledonia, MI, United StatesHQ checked Sep 6, 20261,001-5,000539 contacts →

“Foremost, part of Farmers Insurance®, has been a leader in the insurance industry since 1952.”

Source: company website · checked Sep 6, 2026
19Strong evidenceDe Pere, WI, United StatesHQ checked Sep 6, 20261,001-5,000429 contacts →

“CONNECT, powered by American Family Insurance, offers auto, home, condo, renters, umbrella and specialty insurance with exclusive discounts, benefits and Handle With Care®…”

Source: company website · checked Sep 6, 2026
20Partial evidenceAtlanta, TX, United StatesHQ checked Sep 6, 2026201-500366 contacts →

“At AssuranceAmerica, our mission is to make quality insurance accessible and affordable for everyone.”

Source: company website · checked Sep 6, 2026
21Partial evidenceWinston-salem, NC, United StatesHQ checked Sep 6, 2026501-1,000363 contacts →

“SafeAuto Insurance Group has been a leading provider of affordable state minimum coverage since its founding in 1993.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceLansing, MI, United StatesHQ checked Sep 6, 2026501-1,000282 contacts →
Source: company website · checked Sep 6, 2026
23Partial evidenceJacksonville, FL, United StatesHQ checked Sep 6, 2026201-500243 contacts →

“Stillwater Insurance Group is a national insurance provider offering a full suite of insurance products and services.”

Source: company website · checked Sep 6, 2026
24Partial evidenceCarmel, IN, United StatesHQ checked Sep 6, 2026201-500215 contacts →

“Progressive Fleet & Specialty Programs specializes in providing insurance for the transportation industry.”

Source: company website · checked Sep 6, 2026
25Indirect evidenceTulsa, OK, United StatesHQ checked Sep 6, 2026201-500208 contacts →

“We are Mid-Continent Group - Strong, Secure, Flexible and Supportive.”

Source: company website · checked Sep 6, 2026

Showing 25 of 3,525 auto insurance companies based in the United States

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Auto insurance companies based in the United States at a glance

As of Sep 6, 2026
30.5%Verified-email coverage
42.9%Mobile-number coverage
30.6Average contacts per company
1-10Median size (employees)
1.3%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
2,343
11-50
984
51-200
94
201-500
35
501-1,000
17
1,001-5,000
12
5,001-10,000
6
10001+
4

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 auto insurance 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 “auto insurance 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 auto insurance 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 auto insurance 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, 32,918 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 6, 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.

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 auto insurance 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 auto insurance companies are there based in the United States?

RevenueBase identified 3,525 auto insurance 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?

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

Which city has the most auto insurance companies?

Houston leads with 45 headquartered companies, followed by Miami (32) and Chicago (28).

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 32,918 verified decision-maker contacts tracked across these 3,525 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 6, 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.