Company lists · Data refreshed September 2026

Top 25 Affordable care act insurers based in the United States

RevenueBase identified 708 company matches for affordable care act insurers associated with the United States as of September 2026 and tracks 81,514 professional contacts across them, including 29,675 with verified work emails. Houston is the largest hub.

This list covers company matches for affordable care act insurers 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 19, 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 19, 2026 How this list was built
708Companies
81,514Contacts tracked
29,675Verified emails
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The 25 largest affordable care act insurers based in the United States

Ranked by team size
Top 25 of 708 company matches for affordable care act insurers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchSt. Louis, MO, United StatesHQ recorded Sep 19, 202610001+26,099 contacts →

Exact match

“Centene Corporation is a leading healthcare enterprise committed to helping people live healthier lives.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchMinnetonka, MN, United StatesHQ recorded Sep 19, 202610001+13,144 contacts →

Exact match

“When it comes to your health, everything matters.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchBaltimore, MD, United StatesHQ recorded Sep 19, 20265,001-10,0006,287 contacts →

Exact match

“CareFirst.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchPittsburgh, PA, United StatesHQ recorded Sep 19, 20261,001-5,0004,363 contacts →

Exact match

“How can we best serve our members and the community?”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchCleveland, OH, United StatesHQ recorded Sep 19, 20261,001-5,0002,667 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 · Sep 19, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 19, 20261,001-5,0002,593 contacts →

Exact match

“EmblemHealth is one of America’s largest not-for-profit health insurers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchPortland, OR, United StatesHQ recorded Sep 19, 2026n/a2,393 contacts →

Exact match

“Get Affordable Care Act info for individuals, families today.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchPhoenix, AZ, United StatesHQ recorded Sep 19, 20261,001-5,0002,168 contacts →

Exact match

“Blue Cross ® Blue Shield ® of Arizona (AZ Blue) is committed to helping Arizonans get healthier faster and stay healthier longer.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchHarrisburg, PA, United StatesHQ recorded Sep 19, 20261,001-5,0001,770 contacts →

Exact match

“At Capital Blue Cross, we promise to go the extra mile for our team and our community.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchPortland, OR, United StatesHQ recorded Sep 19, 20265,001-10,0001,463 contacts →

Exact match

“Regence is part of a family of regional health plans that have been a symbol of strength and stability in local communities for more than 100 years.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchHonolulu, HI, United StatesHQ recorded Sep 19, 20261,001-5,0001,311 contacts →

Exact match

“The Hawaii Medical Service Association (HMSA), an independent licensee of the Blue Cross and Blue Shield Association, is a reliable name in Hawaii health care.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchAustin, TX, United StatesHQ recorded Sep 19, 2026501-1,0001,094 contacts →

Exact match

“Curative is a leading healthcare services company that created and launched the first-of-its-kind employer-based health insurance plan.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchDetroit, MI, United StatesHQ recorded Sep 19, 2026501-1,000993 contacts →

Exact match

“HAP is now Health Alliance Plan by Henry Ford Health.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 19, 20261,001-5,000867 contacts →

Exact match

“A nonprofit health plan serving Medicare, Individual & Family, and Medicaid plan members in Massachusetts & New Hampshire.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchFargo, United StatesHQ recorded Sep 19, 2026501-1,000775 contacts →

Exact match

“As a member-owned, not-for-profit health insurance company, we're committed to providing affordable and accessible health care.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLombard, IL, United StatesHQ recorded Sep 19, 20261,001-5,000734 contacts →

Exact match

“We’re a nationwide team of optimists, health care problem solvers and medical insurance advocates.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchFort Worth, TX, United StatesHQ recorded Sep 19, 2026201-500626 contacts →

Exact match

“A family of companies providing a better level of innovative health coverage for people just like you.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchVirginia Beach, VA, United StatesHQ recorded Sep 19, 2026n/a617 contacts →

Exact match

“Optima Health is now Sentara Health Plans.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchMiami, FL, United StatesHQ recorded Sep 19, 2026501-1,000518 contacts →

Exact match

“In 1969, AvMed began in South Florida as Aviation Medicine to serve the growing airline industry by providing pilot physicals.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchFarmington, CT, United StatesHQ recorded Sep 19, 2026501-1,000402 contacts →

Exact match

“ConnectiCare is a leading health plan in the state of Connecticut.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchBirmingham, AL, United StatesHQ recorded Sep 19, 2026501-1,000399 contacts →

Exact match

“Founded in 1995, VIVA HEALTH is now the preferred healthcare provider for close to 300 Alabama companies and more than members and growing.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchManhattan Beach, CA, United StatesHQ recorded Sep 19, 2026201-500236 contacts →

Exact match

“Sidecar Health is changing the health industry with modern, common-sense health insurance that finally gives consumers control over costs and choices.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchNY, United StatesHQ recorded Sep 19, 2026501-1,000201 contacts →

Exact match

“Empire has been serving the health care needs of New Yorkers for more than 80 years.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchCranbury, NJ, United StatesHQ recorded Sep 19, 202651-200179 contacts →

Exact match

“AmeriHealth offers health insurance at a human scale, with solutions that make it easier for members to get care and live healthier.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchPiscataway, NJ, United StatesHQ recorded Sep 19, 2026501-1,000154 contacts →

Exact match

“QualCare, Inc, one of the region's leading providers of health care coverage, provides the public and private marketplace with a higher-quality, lower-cost alternative to…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 708 affordable care act insurers based in the United States

See the full list, filter by size, metro and specialty, and access 29,675 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Affordable care act insurers based in the United States at a glance

As of Sep 19, 2026
36.4%Verified-email coverage
115.1Average contacts per company
1-10Median size (employees)
2.4%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
407
11-50
164
51-200
70
201-500
22
501-1,000
14
1,001-5,000
17
5,001-10,000
5
10001+
4

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 708 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 “affordable care act insurers” 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 29,675 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 19, 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 “affordable care act insurers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many affordable care act insurers are there based in the United States?

RevenueBase identified 708 company matches for affordable care act insurers 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?

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

Which city has the most affordable care act insurers?

Houston leads with 17 company records, followed by Fort Lauderdale (16) and Miami (15).

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 29,675 professional contacts with verified work emails tracked across these 708 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 19, 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.