Company lists · Data refreshed September 2026

Top 25 Commercial liability insurance underwriters based in the United States

RevenueBase identified 118 company matches for commercial liability insurance underwriters associated with the United States as of September 2026 and tracks 2,406 professional contacts across them, including 1,174 with verified work emails. Chicago is the largest hub.

This list covers company matches for commercial liability insurance underwriters 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 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 Sep 16, 2026 How this list was built
118Companies
2,406Contacts tracked
1,174Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest commercial liability insurance underwriters based in the United States

Ranked by team size
Top 25 of 118 company matches for commercial liability insurance underwriters based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchOmaha, NE, United StatesHQ recorded Sep 16, 20261,001-5,000596 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchGoldsboro, NC, United StatesHQ recorded Sep 16, 2026201-500335 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchAlgona, IA, United StatesHQ recorded Sep 16, 2026201-500235 contacts →

Exact match

“For more than a century, Pharmacists Mutual has been providing specialized insurance solutions backed by solid industry insight.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchTulsa, OK, United StatesHQ recorded Sep 16, 2026201-500208 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchSpokane, WA, United StatesHQ recorded Sep 16, 202651-20071 contacts →

Exact match

“Cochrane & Company was established in 1960 in Spokane, Washington.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact matchMelville, NY, United StatesHQ recorded Sep 16, 202651-20057 contacts →

Exact match

“Bradley & Parker is a premier insurance, risk management and financial services firm headquartered in Melville, NY, the business hub of Long Island.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchWaterford, MI, United StatesHQ recorded Sep 16, 202611-5049 contacts →

Exact match

“Universal Fire & Casualty Insurance Company (UFCIC) currently underwrites commercial property, general liability, business owner’s package (BOP), commercial multi-peril (CMP), and…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 16, 202651-20044 contacts →

Exact match

“Deans & Homer was established in 1856 and is one of the oldest continuously operating companies in California.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9Exact matchShreveport, LA, United StatesHQ recorded Sep 16, 202651-20042 contacts →

Exact match

“We are a professional insurance underwriting management company specializing in Commercial Automobile, Commercial General Liability, Commercial Property, Inland Marine and Garage…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchChicago, IL, United StatesHQ recorded Sep 16, 2026201-50037 contacts →

Exact match

“Old Republic Inland Marine is a collaborative team of highly specialized, experienced underwriters with the authority to deliver thoughtful, timely underwriting decisions for…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchBellevue, WA, United StatesHQ recorded Sep 16, 202651-20029 contacts →

Exact match

“Griffin Underwriting Services enables retail insurance agents and brokers to compete and win on hard-to-place risks.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchMiami, FL, United StatesHQ recorded Sep 16, 202611-5028 contacts →

Exact match

“At GIC Underwriters our success is based on 30 years of superior service, conservative underwriting and commitment to meeting the needs of our producers.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchChicago, IL, United StatesHQ recorded Sep 16, 202611-5022 contacts →

Exact match

“Applied Specialty Underwriters provides liability insurance coverage, including primary and excess liability for project-based construction, New York construction, infrastructure…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 16, 202611-5018 contacts →

Exact match

“Schaefer Enterprises: A division of Patriot Growth Insurance Services, LLC is an insurance agency specializing in all aspects of business and personal insurance.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchRoswell, GA, United StatesHQ recorded Sep 16, 202611-5017 contacts →

Exact match

“Our clients are the reason we exist.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchManchester, NH, United StatesHQ recorded Sep 16, 202651-20016 contacts →

Exact match

“Champlain Insurance Group is a general liability and excess insurance enterprise.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchRichmond, VA, United StatesHQ recorded Sep 16, 202611-5015 contacts →

Exact match

“Commonwealth Underwriters connects independent insurance agents to insurance markets for difficult and specialty risks.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchGreen Bay, WI, United StatesHQ recorded Sep 16, 202611-5015 contacts →

Exact match

“Strategic Underwriting Solutions (SUS) was formed to offer high quality health insurance underwriting provided as an outsource service to insurance companies, Third Party…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchEl Campo, TX, United StatesHQ recorded Sep 16, 202611-5014 contacts →

Exact match

“I am currently Specializing in Boat Dealers, Restaurants, Apartment Complexes as well as Hotel and Motel Insurance.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchAmityville, NY, United StatesHQ recorded Sep 16, 202651-20013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchBallston Spa, NY, United StatesHQ recorded Sep 16, 202611-5013 contacts →

Exact match

“At Commercial Coverage, we specialize in identifying and assessing the unique insurance risks faced by businesses across diverse industries, including construction, manufacturing…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchGrand Rapids, MI, United StatesHQ recorded Sep 16, 202611-5012 contacts →

Exact match

“We are an Independent Insurance Agency whose sole purpose is to provide high quality, competitively priced professional liability insurance for our clients.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchLos Angeles, United StatesHQ recorded Sep 16, 20261-1010 contacts →

Exact match

“ProFinity Insurance Services was born out of a desire to provide a better wholesale professional liability solution for today's design, engineering, construction and manufacturing…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchBoston, MA, United StatesHQ recorded Sep 16, 20261-109 contacts →

Exact match

“Liftman Insurance focuses solely on insurance for the investment industry.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchWheeling, IL, United StatesHQ recorded Sep 16, 202651-2008 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 118 commercial liability insurance underwriters based in the United States

See the full list, filter by size, metro and specialty, and access 1,174 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Commercial liability insurance underwriters based in the United States at a glance

As of Sep 16, 2026
48.8%Verified-email coverage
20.4Average contacts per company
1-10Median size (employees)
2.5%Largest-city concentration · Chicago
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
66
11-50
30
51-200
14
201-500
6
1,001-5,000
1

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 118 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 “commercial liability insurance underwriters” 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 1,174 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 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.

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

How many commercial liability insurance underwriters are there based in the United States?

RevenueBase identified 118 company matches for commercial liability insurance underwriters 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?

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

Which city has the most commercial liability insurance underwriters?

Chicago leads with 3 company records, followed by Los Angeles (3) and San Diego (3).

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 1,174 professional contacts with verified work emails tracked across these 118 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 118 commercial liability insurance underwriters based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.