Company lists · Data refreshed November 2026

Top 25 Workers comp third party administrators based in the United States

RevenueBase identified 678 company matches for workers comp third party administrators associated with the United States as of November 2026 and tracks 30,372 professional contacts across them, including 13,083 with verified work emails. New York is the largest hub.

This list covers company matches for workers comp third party administrators 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
678Companies
30,372Contacts tracked
13,083Verified emails
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The 25 largest workers comp third party administrators based in the United States

Ranked by team size
Top 25 of 678 company matches for workers comp third party administrators 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 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
5Exact 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
6Exact 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact 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
12Exact 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
13Exact 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
14Exact 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
15Exact matchLittle Rock, AR, United StatesHQ recorded Nov 6, 2026501-1,000312 contacts →

Exact match

“HealthSCOPE Benefits is a full service claims administration and health management firm providing administrative and other support services to self-funded employers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact 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
19Exact 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
20Exact matchAnaheim, CA, United StatesHQ recorded Nov 6, 202651-200226 contacts →

Exact match

“Carl Warren & Company, a Venbrook Company, is a leading national Third-Party Administrator (TPA).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAgoura Hills, CA, United StatesHQ recorded Nov 6, 2026201-500223 contacts →

Exact match

“Albert and Mackenzie is a diligent and dynamic firm that exclusively practices in California, representing employers, insurance carriers, and third party administrators in the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNew Berlin, WI, United StatesHQ recorded Nov 6, 2026201-500219 contacts →

Exact match

“United Heartland is a leading workers’ compensation carrier with a high-touch service model and broad experience that allows for nimbleness and responsiveness to effectively…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchChesterfield, MO, United StatesHQ recorded Nov 6, 2026201-500206 contacts →

Exact match

“Midwest Employers Casualty (MEC) is exclusively focused on tailored workers’ compensation excess insurance products that meet the unique needs of individual employers, groups and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500203 contacts →

Exact match

“FFGA is a third-party administrator that has professional relationships with more than 90 different insurance companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBloomington, IL, United StatesHQ recorded Nov 6, 2026201-500193 contacts →

Exact match

“Wilson-McShane Corporation is a third party administrator of over 100 Taft-Hartley Multiemployer Funds and is committed to providing plan participants with exceptional customer…”

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

Showing 25 of 678 workers comp third party administrators based in the United States

See the full list, filter by size, metro and specialty, and access 13,083 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Workers comp third party administrators based in the United States at a glance

As of Nov 6, 2026
43.1%Verified-email coverage
44.8Average 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
172
11-50
272
51-200
157
201-500
41
501-1,000
21
1,001-5,000
11
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 678 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 “workers comp third party administrators” 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 13,083 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 “workers comp third party administrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 678 company matches for workers comp third party administrators 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 workers comp third party administrators?

New York leads with 13 company records, followed by Atlanta (10) and Cincinnati (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 13,083 professional contacts with verified work emails tracked across these 678 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.