Company lists · Data refreshed September 2026

Top 25 General liability insurance companies based in the United States

RevenueBase identified 338 general liability insurance companies headquartered in the United States as of September 2026 and tracks 5,340 professional contacts across them, including 2,593 with verified work emails. Houston is the largest hub.

This list covers general liability 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 15, 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 15, 2026 86% judged on-target in blind review
338Companies
5,340Contacts tracked
2,593Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest general liability insurance companies based in the United States

Ranked by team size
Top 25 of 338 general liability insurance companies based in the United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to general liability 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
1Indirect evidenceOmaha, NE, United StatesHQ checked Sep 15, 2026501-1,000820 contacts →

Indirect evidence

“We are National Indemnity Company (NICO).”

Source: RevenueBase Database · checked Sep 15, 2026
2Partial evidenceOmaha, NE, United StatesHQ checked Sep 15, 20261,001-5,000596 contacts →

Partial evidence

“biBerk is a Berkshire Hathaway company offering small business insurance underwritten by A++ AM Best-rated Berkshire Hathaway insurance carriers.”

Source: RevenueBase Database · checked Sep 15, 2026
3Indirect evidencePlantation, FL, United StatesHQ checked Sep 15, 2026501-1,000494 contacts →

Indirect evidence

“As an MGA, we offer a great deal of specialty products with professional service.”

Source: RevenueBase Database · checked Sep 15, 2026
4Partial evidenceAtlanta, GA, United StatesHQ checked Sep 15, 20261,001-5,000412 contacts →

Partial evidence

“Hiscox USA is a growing specialty insurance company with offices across the US.”

Source: RevenueBase Database · checked Sep 15, 2026
5Partial evidenceGoldsboro, NC, United StatesHQ checked Sep 15, 2026201-500335 contacts →

Partial evidence

“Atlantic Casualty Insurance Company (Atlantic Casualty) was formed by Strickland Insurance Group (SIG) in 1983 to underwrite a substantial book of non-standard personal auto.”

Source: RevenueBase Database · checked Sep 15, 2026
6Indirect evidenceTulsa, OK, United StatesHQ checked Sep 15, 2026201-500208 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 15, 2026
7Strong evidenceChicago, IL, United StatesHQ checked Sep 15, 202651-200130 contacts →

Strong evidence

“Berkley Select is a leading provider of professional liability insurance products across a full spectrum of disciplines and industries, for clients of virtually every size and…”

Source: RevenueBase Database · checked Sep 15, 2026
8Partial evidenceClearwater, FL, United StatesHQ checked Sep 15, 202651-200113 contacts →

Partial evidence

“Frank Winston Crum Insurance operates through two complementary entities that work seamlessly together: Frank Winston Crum Insurance (FWCI): Our B++ AM Best-rated insurance…”

Source: RevenueBase Database · checked Sep 15, 2026
9Partial evidenceMarlton, NJ, United StatesHQ checked Sep 15, 202651-20079 contacts →

Partial evidence

Insurance is the business of protecting futures.”

Source: RevenueBase Database · checked Sep 15, 2026
10Partial evidenceWest Hartford, CT, United StatesHQ checked Sep 15, 202611-5063 contacts →

Partial evidence

“Founded in 2020, Berkley Management Protection aims to disrupt the Management and Professional Liability marketplace by providing a new way to engage the market with talent, data…”

Source: RevenueBase Database · checked Sep 15, 2026
11Partial evidenceSalt Lake City, UT, United StatesHQ checked Sep 15, 202651-20061 contacts →

Partial evidence

“Since 1961 Beehive Insurance has been in the business of building trust.”

Source: RevenueBase Database · checked Sep 15, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 15, 202611-5060 contacts →

Partial evidence

“Tradesman Program Managers (TPM) is a trailblazing Managing General Agency, redefining risk management for elite trade and general contractors with forward-thinking commercial…”

Source: RevenueBase Database · checked Sep 15, 2026
13Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 15, 202611-5058 contacts →

Indirect evidence

“In today's litigious society you need a partner dedicated to responding to your losses with a sense of urgency, and managing claims with detail and integrity in a pro-active…”

Source: RevenueBase Database · checked Sep 15, 2026
14Strong evidenceManchester, NH, United StatesHQ checked Sep 15, 202651-20053 contacts →

Strong evidence

“West Congress Insurance Services LLC (WestCongress) is a premier provider of general liability and excess insurance solutions.”

Source: RevenueBase Database · checked Sep 15, 2026
15Indirect evidenceRichmond, VA, United StatesHQ checked Sep 15, 2026201-50053 contacts →

Indirect evidence

“Atlantic Specialty Lines, Inc.”

Source: RevenueBase Database · checked Sep 15, 2026
16Strong evidenceAlbany, NY, United StatesHQ checked Sep 15, 202651-20045 contacts →

Strong evidence

“Berkley Alliance Managers offers innovative Professional Liability insurance coverage and risk management solutions.”

Source: RevenueBase Database · checked Sep 15, 2026
17Indirect evidenceMontclair, NJ, United StatesHQ checked Sep 15, 202651-20035 contacts →

Indirect evidence

“William H.”

Source: RevenueBase Database · checked Sep 15, 2026
18Strong evidenceEncino, CA, United StatesHQ checked Sep 15, 202651-20033 contacts →

Strong evidence

“Brookhurst Insurance Services provides businesses in the transportation & healthcare industry with a variety of insurance such as Workers Compensation, General Liability…”

Source: RevenueBase Database · checked Sep 15, 2026
19Partial evidenceBloomington, IN, United StatesHQ checked Sep 15, 202611-5028 contacts →

Partial evidence

“First Insurance Group has been providing insurance and risk management solutions since 1928 and has grown to become one of the premier agencies in South-Central Indiana.”

Source: RevenueBase Database · checked Sep 15, 2026
20Indirect evidenceRochester, MI, United StatesHQ checked Sep 15, 202611-5025 contacts →

Indirect evidence

“In our 109 years of business, Whims has seen and done it all (and boy do we have some stories).”

Source: RevenueBase Database · checked Sep 15, 2026
21Partial evidenceCharlotte, NC, United StatesHQ checked Sep 15, 20261-1025 contacts →

Partial evidence

“1 Insurance Agent for all your insurance needs: Personal Insurance-Home, Auto and Rental Proprerty and other toys you may have that requires insurance.”

Source: RevenueBase Database · checked Sep 15, 2026
22Partial evidenceFranklin, TN, United StatesHQ checked Sep 15, 202651-20024 contacts →

Partial evidence

“Elite Insurance Solutions is a contemporary Insurance Agency.”

Source: RevenueBase Database · checked Sep 15, 2026
23Partial evidenceSouthborough, MA, United StatesHQ checked Sep 15, 202611-5023 contacts →

Partial evidence

“Hospitality Insurance Group is an admitted insurance company, located in Southborough, MA, that provides insurance coverage to businesses in the hospitality industry.”

Source: RevenueBase Database · checked Sep 15, 2026
24Partial evidenceSalem, VA, United StatesHQ checked Sep 15, 202611-5023 contacts →

Partial evidence

“We help companies large and small; minimize exposure to risk in every facet of their business, thus saving them money by eliminating previously unknown liability.”

Source: RevenueBase Database · checked Sep 15, 2026
25Partial evidenceMiami, FL, United StatesHQ checked Sep 15, 202611-5022 contacts →

Partial evidence

“Canopy Specialty Insurance is an Insurance Program Administrator/Manager that underwrites Specialty insurance product lines exclusively on behalf of "A" rated carrier partners and…”

Source: RevenueBase Database · checked Sep 15, 2026

Showing 25 of 338 general liability insurance companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,593 reachable decision-makers.

Free signup · no credit card

View the full list →

General liability insurance companies based in the United States at a glance

As of Sep 15, 2026
48.6%Verified-email coverage
15.8Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · Houston
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
210
11-50
92
51-200
23
201-500
6
501-1,000
3
1,001-5,000
3

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 338 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 general liability 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 “general liability 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 general liability 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 general liability 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, 2,593 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 15, 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 general liability 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 general liability insurance companies are there based in the United States?

RevenueBase identified 338 general liability 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?

National Indemnity Company, headquartered in Omaha, tops this list with the largest team on record.

Which city has the most general liability insurance companies?

Houston leads with 8 headquartered companies, followed by San Diego (8) and New York (7).

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 2,593 verified decision-maker contacts tracked across these 338 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 15, 2026.

Ready to reach these companies? Verified emails and direct dials for all 338 general liability insurance companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

General liability insurance companies by geography

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.