Company lists · Data refreshed November 2026

Top 25 Third party administrators for workers compensation based in the United States

RevenueBase identified 795 company matches for third party administrators for workers compensation associated with the United States as of November 2026 and tracks 37,338 professional contacts across them, including 16,117 with verified work emails. New York is the largest hub.

This list covers company matches for third party administrators for workers compensation 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 November 6, 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 Nov 6, 2026 How this list was built
795Companies
37,338Contacts tracked
16,117Verified emails
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The 25 largest third party administrators for workers compensation based in the United States

Ranked by team size
Top 25 of 795 company matches for third party administrators for workers compensation based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchJacksonville, FL, United StatesHQ recorded Nov 6, 20261,001-5,0001,648 contacts →

Exact match

“One Call is redefining the Workers’ Compensation ecosystem by unifying ancillary care through one trusted, technology-enabled partner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchFishers, IN, United StatesHQ recorded Nov 6, 20261,001-5,0001,419 contacts →

Exact match

“Alacrity Solutions helps people and businesses recover after a disaster.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDanville, KY, United StatesHQ recorded Nov 6, 20261,001-5,0001,351 contacts →

Exact match

“Since 1978, Cannon Cochran Management Services, Inc.(CCMSI) has set the gold standard as the leading boutique third-party administrator for property and casualty programs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBuffalo, NY, United StatesHQ recorded Nov 6, 20261,001-5,0001,297 contacts →

Exact match

“At Meritain Health®, we know every health journey is different.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchReno, NV, United StatesHQ recorded Nov 6, 2026501-1,0001,159 contacts →

Exact match

“EMPLOYERS focuses on workers' compensation insurance and services for America's small businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Nov 6, 2026501-1,0001,104 contacts →

Exact match

“Texas Mutual Insurance Company, the state's leading workers' compensation provider, has a strong foundation of success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTampa, MD, United StatesHQ recorded Nov 6, 20261,001-5,0001,093 contacts →

Exact match

“Zenith American Solutions (“Zenith”) stands out as a top provider of third-party administration services specifically designed for Taft-Hartley trust funds in the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSioux Falls, SD, United StatesHQ recorded Nov 6, 2026201-500845 contacts →

Exact match

“Workers' Compensation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261,001-5,000831 contacts →

Exact match

“Collective Health is the leading independent third party administrator (TPA) that brings together plan administration, cost management, and taking great care of your people-all in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDenver, CO, United StatesHQ recorded Nov 6, 2026501-1,000766 contacts →

Exact match

“Pinnacol Assurance is a top-performing provider of workers’ compensation insurance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPhoenix, AZ, United StatesHQ recorded Nov 6, 2026501-1,000672 contacts →

Exact match

“Founded in 1925, CopperPoint Insurance Companies, copperpoint.com, is a leading provider of workers’ compensation and commercial property and casualty insurance solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchChicago, IL, United StatesHQ recorded Nov 6, 2026501-1,000665 contacts →

Exact match

“Founded in 1980, Allied Benefit Systems, LLC is the largest national independent Third-Party Administrator (TPA) in the U.S, serving over 14,500 self-insured employers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLansing, MI, United StatesHQ recorded Nov 6, 2026501-1,000578 contacts →

Exact match

“Accident Fund has provided exceptional workers’ compensation insurance, loss prevention strategies and superior claims service for more than 100 years, with a focus on customer…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMeridian, ID, United StatesHQ recorded Nov 6, 2026501-1,000545 contacts →

Exact match

“Healthcare benefits on your terms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPortland, NH, United StatesHQ recorded Nov 6, 2026201-500532 contacts →

Exact match

“The MEMIC Group, headquartered in Portland, Maine, is a leading super-regional workers' compensation specialty insurer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLong Beach, CA, United StatesHQ recorded Nov 6, 2026501-1,000524 contacts →

Exact match

“TRISTAR began as an insurance program manager and medical malpractice claims administrator in 1987.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAltamonte Springs, FL, United StatesHQ recorded Nov 6, 2026501-1,000491 contacts →

Exact match

“North American Risk Services, Inc.(NARS) is a premier third party claims administrator that is dedicated to producing the best possible results for our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDeridder, LA, United StatesHQ recorded Nov 6, 2026201-500429 contacts →

Exact match

“AMERISAFE has been providing specialty workers' compensation insurance since 1986.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPhiladelphia, PA, United StatesHQ recorded Nov 6, 2026501-1,000386 contacts →

Exact match

“AmeriHealth Administrators is one of the largest national third-party administrators providing innovative, value-based health benefits programs and outsourcing services for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWestborough, MA, United StatesHQ recorded Nov 6, 2026201-500368 contacts →

Exact match

“HPI redefines what is possible with self-funded health plans.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFresno, LA, United StatesHQ recorded Nov 6, 2026501-1,000318 contacts →

Exact match

“HealthComp is a leading third-party administrator (TPA) committed to providing customized, full-service offerings including, but not limited to, medical, dental, vision, COBRA…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCincinnati, OH, United StatesHQ recorded Nov 6, 2026201-500309 contacts →

Exact match

“Strategic Comp is the smarter way to do workers' comp, giving businesses more control over their costs, risks, and outcomes than ever before.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBloomington, MN, United StatesHQ recorded Nov 6, 2026201-500285 contacts →

Exact match

“SFM is a mutually owned workers’ compensation insurance company headquartered in Bloomington, Minn.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500251 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHigh Point, NC, United StatesHQ recorded Nov 6, 2026201-500234 contacts →

Exact match

“With 40 years of proven expertise in the workers compensation industry, Key Risk delivers innovative and responsive solutions that provide our clients the freedom to do what they…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 795 third party administrators for workers compensation based in the United States

See the full list, filter by size, metro and specialty, and access 16,117 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Third party administrators for workers compensation based in the United States at a glance

As of Nov 6, 2026
43.2%Verified-email coverage
47.0Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
208
11-50
321
51-200
176
201-500
49
501-1,000
22
1,001-5,000
14
5,001-10,000
1
10001+
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 795 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 “third party administrators for workers compensation” 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 16,117 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 November 6, 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 “third party administrators for workers compensation”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many third party administrators for workers compensation are there based in the United States?

RevenueBase identified 795 company matches for third party administrators for workers compensation associated with the United States as of November 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?

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

Which city has the most third party administrators for workers compensation?

New York leads with 15 company records, followed by Atlanta (12) and Dallas (11).

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 16,117 professional contacts with verified work emails tracked across these 795 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 November 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 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.