Company lists · Data refreshed October 2026

Top 25 Insurance underwriting services based in the United States

Name: Insurance underwriting services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 17, 2026 473 companies tracked

RevenueBase identified 473 company matches for insurance underwriting services associated with the United States as of October 2026 and tracks 18,985 professional contacts across them, including 6,026 with verified work emails. New York is the largest hub.

This list covers company matches for insurance underwriting services 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 October 17, 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 Oct 17, 2026 How this list was built

473Companies

18,985Contacts tracked

6,026Verified emails

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The 25 largest insurance underwriting services based in the United States

Ranked by team size

Top 25 of 473 company matches for insurance underwriting services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Zurich North America	Exact match	Schaumburg, IL, United StatesHQ recorded Oct 17, 2026	5,001-10,000	9,431 contacts →
	Exact match “Zurich North America is one of the largest providers of insurance solutions and services to businesses and individuals.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2	USLI	Exact match	Wayne, PA, United StatesHQ recorded Oct 17, 2026	1,001-5,000	1,335 contacts →
	Exact match “We aspire to be the very best insurance company at underwriting insurance products for our customers.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3	ISO	Exact match	Jersey City, NJ, United StatesHQ recorded Oct 17, 2026	5,001-10,000	1,133 contacts →
	Exact match “Underwriting solutions at Verisk is a leading provider of advanced tools and analytics for the property/casualty and life insurance industries.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4	Atlantic Casualty Insurance CO	Exact match	Goldsboro, NC, United StatesHQ recorded Oct 17, 2026	201-500	333 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 · Oct 17, 2026 · View company records in RevenueBase
5	Euclid Transactional	Exact match	New York, NY, United StatesHQ recorded Oct 17, 2026	51-200	194 contacts →
	Exact match “Euclid Transactional is a leading global managing general agent that specializes in transactional risk insurance, including representations and warranties insurance and tax…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6	Amway Corporation	Exact match	Arlington, TX, United StatesHQ recorded Oct 17, 2026	n/a	120 contacts →
	Exact match “Amway Corporation is an Insurance company located in 2001 Timberlake Dr, Arlington, Texas, United States.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7	TSIB	Exact match	Saddle Brook, NJ, United StatesHQ recorded Oct 17, 2026	51-200	107 contacts →
	Exact match “TSIB was founded in 2005 as a subsidiary of Hochtief USA.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8	Verus Specialty Insurance A Berkley Company	Exact match	Glen Allen, VA, United StatesHQ recorded Oct 17, 2026	51-200	94 contacts →
	Exact match “Verus Specialty Insurance is an underwriting management company targeting small to midsize commercial risks in the E&S and Specialty insurance markets through appointed wholesale…” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9	Wellington Insurance Group	Exact match	Fort Worth, TX, United StatesHQ recorded Oct 17, 2026	51-200	90 contacts →
	Exact match “Wellington Insurance Group is a Texas-based risk distribution and financial services organization specializing in the delivery and administration of residential property insurance.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10	Falcon Risk Services	Exact match	New York, NY, United StatesHQ recorded Oct 17, 2026	51-200	82 contacts →
	Exact match “Falcon Risk Services, an HDI Company, is a provider of specialty underwriting and claims solutions to US and multinational corporations.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11	Insurance Risk Services, INC	Exact match	Lake Mary, FL, United StatesHQ recorded Oct 17, 2026	51-200	81 contacts →
	Exact match “IRSi offers a full range of insurance inspection services and field underwriting support aimed at delivering you all the information you need to make informed decisions.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12	Cochrane & Company	Exact match	Spokane, WA, United StatesHQ recorded Oct 17, 2026	51-200	76 contacts →
	Exact match “Cochrane & Company was established in 1960 in Spokane, Washington.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13	Sixfold	Exact match	New York, NY, United StatesHQ recorded Oct 17, 2026	51-200	75 contacts →
	Exact match “Sixfold is the AI brain behind better underwriting.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14	ONE Resource Group	Exact match	Roanoke, IN, United StatesHQ recorded Oct 17, 2026	51-200	75 contacts →
	Exact match “One Resource group was created in 2002 with the idea that one company could provide a level of service unmatched in the industry.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15	Kalepa	Exact match	New York, NY, United StatesHQ recorded Oct 17, 2026	51-200	66 contacts →
	Exact match “Make better underwriting decisions, faster with Kalepa.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16	Bradley & Parker	Exact match	Melville, NY, United StatesHQ recorded Oct 17, 2026	51-200	61 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 · Oct 17, 2026 · View company records in RevenueBase
17	Sutton National Group	Exact match	Delray Beach, FL, United StatesHQ recorded Oct 17, 2026	11-50	56 contacts →
	Exact match “With an A.M.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18	National Safety & Risk	Exact match	Riverhead, NY, United StatesHQ recorded Oct 17, 2026	51-200	56 contacts →
	Exact match “Who we are: National Safety & Risk Inc.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19	Dryden Mutual Insurance CO INC	Exact match	Dryden, NY, United StatesHQ recorded Oct 17, 2026	11-50	53 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20	Medical Risk Managers, INC	Exact match	East Hartford, CT, United StatesHQ recorded Oct 17, 2026	51-200	53 contacts →
	Exact match “Medical Risk Managers is a service provider to the employer stop loss industry.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21	IMS Paramedical, INC	Exact match	Newark, CA, United StatesHQ recorded Oct 17, 2026	11-50	51 contacts →
	Exact match “IMS provides underwriting support services for the life insurance industry.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22	Riscom Regional Insurance Services Company, LLC	Exact match	Shreveport, LA, United StatesHQ recorded Oct 17, 2026	51-200	45 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 · Oct 17, 2026 · View company records in RevenueBase
23	Acrisure	Exact match	Overland Park, KS, United StatesHQ recorded Oct 17, 2026	51-200	43 contacts →
	Exact match “Our Acrisure offices are located in Overland Park, KS, Topeka, KS, Wichita, KS and Belton, Mo.” Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24	Universal Fire & Casualty Insurance Company	Exact match	Waterford, MI, United StatesHQ recorded Oct 17, 2026	11-50	36 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 · Oct 17, 2026 · View company records in RevenueBase
25	Capital Providers Insurance Services, INC	Exact match	Woodland Hills, CA, United StatesHQ recorded Oct 17, 2026	11-50	34 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “insurance underwriting services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 473 insurance underwriting services based in the United States

See the full list, filter by size, metro and specialty, and access 6,026 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Insurance underwriting services based in the United States at a glance

As of Oct 17, 2026

31.7%Verified-email coverage

40.1Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · New York

Oct 17, 2026Page data refreshed

Companies by employee count

1-10

281

11-50

138

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 473 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 “insurance underwriting services” 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 6,026 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 October 17, 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 “insurance underwriting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many insurance underwriting services are there based in the United States?

RevenueBase identified 473 company matches for insurance underwriting services associated with the United States as of October 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?

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

Which city has the most insurance underwriting services?

New York leads with 14 company records, followed by Houston (9) and Miami (8).

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 6,026 professional contacts with verified work emails tracked across these 473 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 October 17, 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.