Company lists · Data refreshed September 2026

Top 25 Non standard insurance companies based in the United States

RevenueBase identified 1,482 company matches for non standard insurance companies associated with the United States as of September 2026 and tracks 137,247 professional contacts across them, including 50,871 with verified work emails. Houston is the largest hub.

This list covers company matches for non standard insurance 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 September 30, 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 Sep 30, 2026 How this list was built
1,482Companies
137,247Contacts tracked
50,871Verified emails
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The 25 largest non standard insurance companies based in the United States

Ranked by team size
Top 25 of 1,482 company matches for non standard insurance companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 30, 202610001+32,682 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2Exact matchChicago, IL, United StatesHQ recorded Sep 30, 20265,001-10,0006,984 contacts →

Exact match

“CNA is one of the largest U.S.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3Exact matchChicago, IL, United StatesHQ recorded Sep 30, 20265,001-10,0005,419 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4Exact matchWorcester, MA, United StatesHQ recorded Sep 30, 20265,001-10,0005,132 contacts →

Exact match

“Rooted in our commitment to be with you, every step, The Hanover Insurance Group, Inc.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 30, 20265,001-10,0004,734 contacts →

Exact match

“AmTrust Financial Services, Inc, through its subsidiaries, operates as a multinational property and casualty insurance company.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6Exact matchStevens Point, WI, United StatesHQ recorded Sep 30, 20265,001-10,0003,963 contacts →

Exact match

“Sentry Insurance got its start in 1904, when members of the Wisconsin Retail Hardware Association formed their own insurance company.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7Exact matchBrea, CA, United StatesHQ recorded Sep 30, 20265,001-10,0003,186 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 · Sep 30, 2026 · View company records in RevenueBase
8Exact matchGlen Allen, VA, United StatesHQ recorded Sep 30, 20261,001-5,0003,151 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 · Sep 30, 2026 · View company records in RevenueBase
9Exact matchBranchville, NJ, United StatesHQ recorded Sep 30, 20261,001-5,0002,931 contacts →

Exact match

“At Selective, we maintain a commitment to provide unique insurance solutions that help keep the families and businesses of our communities protected.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10Exact matchJersey City, NJ, United StatesHQ recorded Sep 30, 20261,001-5,0002,704 contacts →

Exact match

“Arch Insurance Group Inc, a division of Arch Capital Group Ltd.(ACGL), is a market-leading specialty insurer.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11Exact matchMorristown, NJ, United StatesHQ recorded Sep 30, 20261,001-5,0002,105 contacts →

Exact match

“Crum & Forster (C&F) provides market leading property & casualty, accident & health, specialty and standard commercial lines insurance solutions.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 30, 20261,001-5,0001,799 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 · Sep 30, 2026 · View company records in RevenueBase
13Exact matchPlymouth, MN, United StatesHQ recorded Sep 30, 20261,001-5,0001,388 contacts →

Exact match

“We are here to help people, businesses and society prosper in good times and be resilient in bad times.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14Exact matchPeoria, IL, United StatesHQ recorded Sep 30, 20261,001-5,0001,386 contacts →

Exact match

“RLI is a U.S-based specialty insurer that serves niche property, casualty and surety markets.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15Exact matchBoston, MA, United StatesHQ recorded Sep 30, 20261,001-5,0001,269 contacts →

Exact match

“Homesite.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16Exact matchHuntington Beach, CA, United StatesHQ recorded Sep 30, 20261,001-5,0001,199 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17Exact matchMiddleton, WI, United StatesHQ recorded Sep 30, 2026201-5001,145 contacts →

Exact match

“CapSpecialty® is a leading provider of specialty insurance for small to mid-sized businesses in the U.S, offering casualty, professional liability, surety and fidelity products in…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18Exact matchWhite Plains, NY, United StatesHQ recorded Sep 30, 2026501-1,0001,116 contacts →

Exact match

“PURE is a specialty property and casualty insurer dedicated to helping a membership of responsible people protect high value homes, jewelry, artwork and other fine assets.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19Exact matchCincinnati, OH, United StatesHQ recorded Sep 30, 20261,001-5,0001,113 contacts →

Exact match

“American Modern provides insurance solutions for customers who need coverage not readily found in the general market.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20Exact matchHuntington Beach, CA, United StatesHQ recorded Sep 30, 20261,001-5,0001,106 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21Exact matchSt. Louis, MO, United StatesHQ recorded Sep 30, 2026501-1,0001,008 contacts →

Exact match

“Safety National is a leading specialty insurance and reinsurance provider.”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22Exact matchCedar Rapids, IA, United StatesHQ recorded Sep 30, 2026501-1,0001,008 contacts →

Exact match

“Founded in 1946 as United Fire & Casualty Company, UFG Insurance (Nasdaq: UFCS) is engaged in the business of writing property and casualty insurance through its insurance company…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23Exact matchNeenah, WI, United StatesHQ recorded Sep 30, 20261,001-5,000957 contacts →

Exact match

“SECURA Insurance Companies is based in Neenah, Wis, and operates in 13 states, including: Arizona, Colorado, Illinois, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, North…”

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24Exact matchHuntington Beach, CA, United StatesHQ recorded Sep 30, 20261,001-5,000954 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25Exact matchNashville, TN, United StatesHQ recorded Sep 30, 2026501-1,000863 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

Showing 25 of 1,482 non standard insurance companies based in the United States

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Non standard insurance companies based in the United States at a glance

As of Sep 30, 2026
37.1%Verified-email coverage
92.6Average contacts per company
1-10Median size (employees)
1.8%Largest-city concentration · Houston
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
873
11-50
389
51-200
86
201-500
56
501-1,000
26
1,001-5,000
31
5,001-10,000
9
10001+
6

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 1,482 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 “non standard insurance 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 50,871 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 September 30, 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.

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

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

RevenueBase identified 1,482 company matches for non standard insurance companies associated with the United States as of September 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?

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

Which city has the most non standard insurance companies?

Houston leads with 26 company records, followed by Miami (22) and New York (21).

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 50,871 professional contacts with verified work emails tracked across these 1,482 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 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 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.