Company lists · Data refreshed November 2026

Top 25 Self-insured plan administrators based in the United States

RevenueBase identified 473 company matches for self-insured plan administrators associated with the United States as of November 2026 and tracks 20,812 professional contacts across them, including 8,980 with verified work emails. Houston is the largest hub.

This list covers company matches for self-insured plan 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
473Companies
20,812Contacts tracked
8,980Verified emails
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The 25 largest self-insured plan administrators based in the United States

Ranked by team size
Top 25 of 473 company matches for self-insured plan 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 matchCleveland, OH, United StatesHQ recorded Nov 6, 20261,001-5,0002,749 contacts →

Exact match

“Founded in 1934, Medical Mutual is the oldest and one of the largest health insurance companies based in Ohio.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchOklahoma City, OK, United StatesHQ recorded Nov 6, 20261,001-5,0002,234 contacts →

Exact match

“American Fidelity is more than insurance company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAtlanta, PA, United StatesHQ recorded Nov 6, 2026201-5001,182 contacts →

Exact match

“NASCO empowers health plans to innovate, grow, and deliver better experiences through a comprehensive suite of healthcare technology solutions and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact matchFrederick, MD, United StatesHQ recorded Nov 6, 2026n/a665 contacts →

Exact match

“ESIC Corporation is a company based out of 38 S Market St, Frederick, MD, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 2026501-1,000500 contacts →

Exact match

“About Northwest Administrators, Inc.(NWA) Since 1958, Northwest Administrators, Inc.(NWA) has delivered trusted, high-quality employee benefit plan administration and benefit…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMenomonee Falls, WI, United StatesHQ recorded Nov 6, 2026501-1,000497 contacts →

Exact match

“SKYGEN transforms dental and vision benefits management and administration with flexible technology and services that connect and change lives for the better.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchRosemont, IL, United StatesHQ recorded Nov 6, 20261,001-5,000491 contacts →

Exact match

“Luminare Health is one of the largest third-party benefits administrators in the nation, delivering comprehensive benefits solutions that help self-funded employers control…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSparks, MD, United StatesHQ recorded Nov 6, 2026201-500384 contacts →

Exact match

“Benefit challenges facing employers today are extremely complex.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchSalt Lake City, HI, United StatesHQ recorded Nov 6, 2026201-500310 contacts →

Exact match

“DMBA is a non-profit organization that administers welfare and financial benefits for employees of our participating employers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRenton, WA, United StatesHQ recorded Nov 6, 20261,001-5,000309 contacts →

Exact match

“Navia is a national, Health and Wealth benefits provider serving clients across all 50 states.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCanton, OH, United StatesHQ recorded Nov 6, 2026201-500275 contacts →

Exact match

“AultCare was created for the community and although we’ve grown in our geographic reach, services and provider listing over the past two decades, our focus continues to be the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWinston-salem, NC, United StatesHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“MedCost LLC is an integrated benefits solutions company offering customized programs to help employers lower their health plan costs and provide more affordable benefits for their…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLititz, PA, United StatesHQ recorded Nov 6, 2026201-500222 contacts →

Exact match

“Benecon provides self-funded medical benefit programs for public and private sector employers, offering a full suite of actuarial, compliance, finance and producer services to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSalt Lake City, UT, United StatesHQ recorded Nov 6, 2026201-500217 contacts →

Exact match

“National Benefit Services, LLC is an outsourced employee benefits provider in the retirement and consumer driven healthcare markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCarrollton, TX, United StatesHQ recorded Nov 6, 2026201-500204 contacts →

Exact match

“Established in 1998, Ameriflex is a leading independent benefits administrator trusted by brokers and employers nationwide to simplify benefits, ensure compliance, and reduce…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202651-200186 contacts →

Exact match

“Boon has 40+ years of experience in providing employee benefits, insurance products, and administrative services to government contractors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBloomington, MN, United StatesHQ recorded Nov 6, 202651-200173 contacts →

Exact match

“HealthEZ is an independent health benefits innovator empowering clients to opt-out of the one-size-fits-all traditional insurance models burdened by rising costs and lackluster…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWilliamsville, NY, United StatesHQ recorded Nov 6, 2026201-500158 contacts →

Exact match

“P&A Group is a national employee benefits provider specializing in the administration and implementation of benefit plans including: Flexible Spending Accounts (FSAs) Health…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBoston, VT, United StatesHQ recorded Nov 6, 2026201-500151 contacts →

Exact match

“One organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCleveland, OH, United StatesHQ recorded Nov 6, 202651-200137 contacts →

Exact match

“Whether growing a client relationship, helping a customer select the right insurance product or designing a customer-facing web application, we look to the talent of our diverse…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSyracuse, NY, United StatesHQ recorded Nov 6, 2026501-1,000134 contacts →

Exact match

“POMCO is one of the nation’s largest third party administrators offering customized, fully - integrated benefits programs to a broad spectrum of organizations.”

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

Showing 25 of 473 self-insured plan administrators based in the United States

See the full list, filter by size, metro and specialty, and access 8,980 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Self-insured plan administrators based in the United States at a glance

As of Nov 6, 2026
43.1%Verified-email coverage
44.0Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
169
11-50
174
51-200
83
201-500
24
501-1,000
13
1,001-5,000
6
5,001-10,000
2

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 “self-insured plan 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 8,980 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 “self-insured plan administrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many self-insured plan administrators are there based in the United States?

RevenueBase identified 473 company matches for self-insured plan 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?

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

Which city has the most self-insured plan administrators?

Houston leads with 9 company records, followed by Las Vegas (7) and Los Angeles (7).

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 8,980 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 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.