Company lists · Data refreshed September 2026
Top 25 Health maintenance organizations based in the United States
RevenueBase identified 163 company matches for health maintenance organizations associated with the United States as of September 2026 and tracks 158,965 professional contacts across them, including 21,076 with verified work emails. Miami is the largest hub.
This list covers company matches for health maintenance organizations 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 20, 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.
The 25 largest health maintenance organizations based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 116,185 contacts → | ||||
Exact match “At the heart of health care, you’ll find Kaiser Permanente.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 9,421 contacts → | ||||
Exact match “At Anthem Blue Cross and Blue Shield we understand our health connects us to each other.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 6,161 contacts → | ||||
Exact match “HealthPartners, an integrated health care organization providing health care services and health plan financing and administration, was founded in 1957 as a cooperative.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 4,363 contacts → | ||||
Exact match “How can we best serve our members and the community?” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 1,847 contacts → | ||||
Exact match “As one of Western New York's first HMOs, Independent Health covers approximately people here and across the country with more than 100 plans, services and products.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 1,833 contacts → | ||||
Exact match “With a mission to heal and inspire the human spirit, Inland Empire Health Plan (IEHP) is one of the top 10 largest Medicaid health plans, the largest not-for-profit…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 1,770 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 20, 2026 · View company records in RevenueBase | |||||
| 8 | 1,090 contacts → | ||||
Exact match “Founded in 1984 as a physician-founded and guided health plan, CDPHP and its affiliates currently serve members in 29 counties throughout New York with a full family of products.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 993 contacts → | ||||
Exact match “HAP is now Health Alliance Plan by Henry Ford Health.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 911 contacts → | ||||
Exact match “Meridian in Michigan’s (Meridian) mission is to continuously improve the quality of care in a low-resource environment.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 840 contacts → | ||||
Exact match “Regal Medical Group, Lakeside Community Healthcare, ADOC Medical Group, and Community Surgery Center of Glendale – part of the Heritage Provider Network – is recognized as one of…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 828 contacts → | ||||
Exact match “Harvard Pilgrim and its family of companies provide health benefit plans, programs and services to more than 3 million customers in New England and beyond.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 610 contacts → | ||||
Exact match “We are a local, non-profit, Managed Care Organization (MCO), offering Children's Medicaid (STAR) and CHIP programs.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 551 contacts → | ||||
Exact match “Florida Health Care Plans is more than an insurance company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 521 contacts → | ||||
Exact match “Established in 1996, Prospect Medical Holdings, Inc, is a national leader in fully integrated healthcare.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 512 contacts → | ||||
Exact match “The mission of Affinity by Molina Healthcare (formerly Affinity Health Plan) is to improve the health and lives of its members by delivering high-quality health care.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 483 contacts → | ||||
Exact match “Group Health Cooperative of South Central Wisconsin (GHC-SCW) is a not-for-profit managed health care organization that provides the entire spectrum of health care services…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 402 contacts → | ||||
Exact match “ConnectiCare is a leading health plan in the state of Connecticut.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 386 contacts → | ||||
Exact match “At Buffalo Medical Group, we offer care that goes beyond simply treating you when you’re sick.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 350 contacts → | ||||
Exact match “Best Doctors Insurance is the leading international health insurance company in Latin America, the Caribbean and Canada.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 345 contacts → | ||||
Exact match “Calibrated Healthcare Network (CHN) manages over 11 million lives in over 8 states, partnering with industry leaders in the area of managed care.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 342 contacts → | ||||
Exact match “As a Florida, licensed health maintenance organization (HMO) and preferred provider organization (PPO), we offer health plans for people enrolled in Medicaid and/or Medicare…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 338 contacts → | ||||
Exact match “Virginia Premier is now Sentara Health Plans.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 325 contacts → | ||||
Exact match “At Blue Cross & Blue Shield of Mississippi, we work daily to help Mississippians find their personal answers to this question through health and wellness partnerships with quality…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 260 contacts → | ||||
Exact match “The Health Plan is a clinically-driven, technology-enhanced, and customer-focused health maintenance organization that manages and improves the health and well-being of its…” Recorded in the RevenueBase company graph · Sep 20, 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 “health maintenance organizations”. 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 163 health maintenance organizations based in the United States
See the full list, filter by size, metro and specialty, and access 21,076 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Health maintenance organizations based in the United States at a glance
As of Sep 20, 2026Companies by employee count
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 163 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 “health maintenance organizations” 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 21,076 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 20, 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 “health maintenance organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many health maintenance organizations are there based in the United States?
RevenueBase identified 163 company matches for health maintenance organizations 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?
Kaiser Permanente tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most health maintenance organizations?
Miami leads with 6 company records, followed by Bakersfield (3) and Chicago (3).
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 21,076 professional contacts with verified work emails tracked across these 163 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 163 health maintenance organizations based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Health maintenance organizations by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Health maintenance organizations based in Argentina
- Health maintenance organizations based in Brazil
- Health maintenance organizations based in Nigeria
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 health maintenance organizations based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 163 matching company records for health maintenance organizations based in the United States, with 158,965 tracked contacts and 21,076 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 health maintenance organizations based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Kaiser Permanentekp.orgHQ: Oakland, CA, United StatesReported employees: 10001+ | Oakland, CA, United States | 10001+ | Exact match | 116,185 contacts → |
“At the heart of health care, you’ll find Kaiser Permanente.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Anthem Blue Cross And Blue Shieldanthem.comHQ: Indianapolis, IN, United StatesReported employees: 10001+ | Indianapolis, IN, United States | 10001+ | Exact match | 9,421 contacts → |
“At Anthem Blue Cross and Blue Shield we understand our health connects us to each other.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Healthpartnershealthpartners.com HQ: Bloomington, MN, United StatesReported employees: 10001+ | Bloomington, MN, United States | 10001+ | Exact match | 6,161 contacts → |
“HealthPartners, an integrated health care organization providing health care services and health plan financing and administration, was founded in 1957 as a cooperative.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Upmc Health Planupmchealthplan.com HQ: Pittsburgh, PA, United StatesReported employees: 1,001-5,000 | Pittsburgh, PA, United States | 1,001-5,000 | Exact match | 4,363 contacts → |
“How can we best serve our members and the community?” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Independent Healthindependenthealth.com HQ: Buffalo, NY, United StatesReported employees: 1,001-5,000 | Buffalo, NY, United States | 1,001-5,000 | Exact match | 1,847 contacts → |
“As one of Western New York's first HMOs, Independent Health covers approximately people here and across the country with more than 100 plans, services and products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | IEHPiehp.org HQ: Rancho Cucamonga, CA, United StatesReported employees: 1,001-5,000 | Rancho Cucamonga, CA, United States | 1,001-5,000 | Exact match | 1,833 contacts → |
“With a mission to heal and inspire the human spirit, Inland Empire Health Plan (IEHP) is one of the top 10 largest Medicaid health plans, the largest not-for-profit…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Capital Blue Crosscapitalbluecross.com HQ: Harrisburg, PA, United StatesReported employees: 1,001-5,000 | Harrisburg, PA, United States | 1,001-5,000 | Exact match | 1,770 contacts → |
“At Capital Blue Cross, we promise to go the extra mile for our team and our community.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | CDPHPcdphp.com HQ: Latham, NY, United StatesReported employees: 1,001-5,000 | Latham, NY, United States | 1,001-5,000 | Exact match | 1,090 contacts → |
“Founded in 1984 as a physician-founded and guided health plan, CDPHP and its affiliates currently serve members in 29 counties throughout New York with a full family of products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Health Alliance Planhap.org HQ: Detroit, MI, United StatesReported employees: 501-1,000 | Detroit, MI, United States | 501-1,000 | Exact match | 993 contacts → |
“HAP is now Health Alliance Plan by Henry Ford Health.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Meridianmimeridian.com HQ: Detroit, MI, United StatesReported employees: 1,001-5,000 | Detroit, MI, United States | 1,001-5,000 | Exact match | 911 contacts → |
“Meridian in Michigan’s (Meridian) mission is to continuously improve the quality of care in a low-resource environment.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Regal Medical Groupregalmed.comHQ: Los Angeles, CA, United StatesReported employees: 1,001-5,000 | Los Angeles, CA, United States | 1,001-5,000 | Exact match | 840 contacts → |
“Regal Medical Group, Lakeside Community Healthcare, ADOC Medical Group, and Community Surgery Center of Glendale – part of the Heritage Provider Network – is recognized as one of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Harvard Pilgrim Health Careharvardpilgrim.org HQ: Canton, MA, United StatesReported employees: 1,001-5,000 | Canton, MA, United States | 1,001-5,000 | Exact match | 828 contacts → |
“Harvard Pilgrim and its family of companies provide health benefit plans, programs and services to more than 3 million customers in New England and beyond.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Community Health Choicecommunityhealthchoice.org HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 610 contacts → |
“We are a local, non-profit, Managed Care Organization (MCO), offering Children's Medicaid (STAR) and CHIP programs.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Florida Health Care Plansfhcp.com HQ: Daytona Beach, FL, United StatesReported employees: 1,001-5,000 | Daytona Beach, FL, United States | 1,001-5,000 | Exact match | 551 contacts → |
“Florida Health Care Plans is more than an insurance company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Culver City, CA, United StatesReported employees: 10001+ | Culver City, CA, United States | 10001+ | Exact match | 521 contacts → |
“Established in 1996, Prospect Medical Holdings, Inc, is a national leader in fully integrated healthcare.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Affinity Health Planaffinityplan.comHQ: Bronx, NY, United StatesReported employees: 501-1,000 | Bronx, NY, United States | 501-1,000 | Exact match | 512 contacts → |
“The mission of Affinity by Molina Healthcare (formerly Affinity Health Plan) is to improve the health and lives of its members by delivering high-quality health care.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Madison, United StatesReported employees: 501-1,000 | Madison, United States | 501-1,000 | Exact match | 483 contacts → |
“Group Health Cooperative of South Central Wisconsin (GHC-SCW) is a not-for-profit managed health care organization that provides the entire spectrum of health care services…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Connecticareconnecticare.com HQ: Farmington, CT, United StatesReported employees: 501-1,000 | Farmington, CT, United States | 501-1,000 | Exact match | 402 contacts → |
“ConnectiCare is a leading health plan in the state of Connecticut.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Buffalo Medical Groupbuffalomedicalgroup.comHQ: Buffalo, NY, United StatesReported employees: 501-1,000 | Buffalo, NY, United States | 501-1,000 | Exact match | 386 contacts → |
“At Buffalo Medical Group, we offer care that goes beyond simply treating you when you’re sick.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Best Doctors Insurancebestdoctorsinsurance.com HQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 350 contacts → |
“Best Doctors Insurance is the leading international health insurance company in Latin America, the Caribbean and Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Calibrated Healthcarecalibratedhealthcare.com HQ: Ontario, CA, United StatesReported employees: 1,001-5,000 | Ontario, CA, United States | 1,001-5,000 | Exact match | 345 contacts → |
“Calibrated Healthcare Network (CHN) manages over 11 million lives in over 8 states, partnering with industry leaders in the area of managed care.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Simply Healthcare Planssimplyhealthcareplans.com HQ: Miami, FL, United StatesReported employees: 501-1,000 | Miami, FL, United States | 501-1,000 | Exact match | 342 contacts → |
“As a Florida, licensed health maintenance organization (HMO) and preferred provider organization (PPO), we offer health plans for people enrolled in Medicaid and/or Medicare…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Virginia Premiersentarahealthplans.com HQ: Richmond, VA, United StatesReported employees: Not recorded | Richmond, VA, United States | Not recorded | Exact match | 338 contacts → |
“Virginia Premier is now Sentara Health Plans.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Blue Cross & Blue Shield Of Mississippibcbsms.comHQ: Flowood, MS, United StatesReported employees: 1,001-5,000 | Flowood, MS, United States | 1,001-5,000 | Exact match | 325 contacts → |
“At Blue Cross & Blue Shield of Mississippi, we work daily to help Mississippians find their personal answers to this question through health and wellness partnerships with quality…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Health Plan THPhealthplan.org HQ: Wheeling, WV, United StatesReported employees: 501-1,000 | Wheeling, WV, United States | 501-1,000 | Exact match | 260 contacts → |
“The Health Plan is a clinically-driven, technology-enhanced, and customer-focused health maintenance organization that manages and improves the health and well-being of its…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 163 company matches
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Health maintenance organizations: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
162 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 163 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for health maintenance organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many health maintenance organizations did RevenueBase find based in the United States?
The saved snapshot records 163 matching company records, 158,965 tracked contacts and 21,076 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Health maintenance organizations by geography
Cite this list
RevenueBase Data Team. Top 25 health maintenance organizations based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/health-maintenance-organizations/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Health maintenance organizations based in Argentina
- Health maintenance organizations based in Brazil
- Health maintenance organizations based in Nigeria
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 25 health maintenance organizations based in the United States
RevenueBase records 163 matching company records for health maintenance organizations based in the United States, with 158,965 tracked contacts and 21,076 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 health maintenance organizations based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Kaiser Permanentekp.org HQ: Oakland, CA, United StatesReported employees: 10001+ | Oakland, CA, United States | 10001+ | Exact match | 116,185 contacts → |
“At the heart of health care, you’ll find Kaiser Permanente.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Anthem Blue Cross And Blue Shieldanthem.com HQ: Indianapolis, IN, United StatesReported employees: 10001+ | Indianapolis, IN, United States | 10001+ | Exact match | 9,421 contacts → |
“At Anthem Blue Cross and Blue Shield we understand our health connects us to each other.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Healthpartnershealthpartners.com HQ: Bloomington, MN, United StatesReported employees: 10001+ | Bloomington, MN, United States | 10001+ | Exact match | 6,161 contacts → |
“HealthPartners, an integrated health care organization providing health care services and health plan financing and administration, was founded in 1957 as a cooperative.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Upmc Health Planupmchealthplan.com HQ: Pittsburgh, PA, United StatesReported employees: 1,001-5,000 | Pittsburgh, PA, United States | 1,001-5,000 | Exact match | 4,363 contacts → |
“How can we best serve our members and the community?” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Independent Healthindependenthealth.com HQ: Buffalo, NY, United StatesReported employees: 1,001-5,000 | Buffalo, NY, United States | 1,001-5,000 | Exact match | 1,847 contacts → |
“As one of Western New York's first HMOs, Independent Health covers approximately people here and across the country with more than 100 plans, services and products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | IEHPiehp.org HQ: Rancho Cucamonga, CA, United StatesReported employees: 1,001-5,000 | Rancho Cucamonga, CA, United States | 1,001-5,000 | Exact match | 1,833 contacts → |
“With a mission to heal and inspire the human spirit, Inland Empire Health Plan (IEHP) is one of the top 10 largest Medicaid health plans, the largest not-for-profit…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Capital Blue Crosscapitalbluecross.com HQ: Harrisburg, PA, United StatesReported employees: 1,001-5,000 | Harrisburg, PA, United States | 1,001-5,000 | Exact match | 1,770 contacts → |
“At Capital Blue Cross, we promise to go the extra mile for our team and our community.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | CDPHPcdphp.com HQ: Latham, NY, United StatesReported employees: 1,001-5,000 | Latham, NY, United States | 1,001-5,000 | Exact match | 1,090 contacts → |
“Founded in 1984 as a physician-founded and guided health plan, CDPHP and its affiliates currently serve members in 29 counties throughout New York with a full family of products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Health Alliance Planhap.org HQ: Detroit, MI, United StatesReported employees: 501-1,000 | Detroit, MI, United States | 501-1,000 | Exact match | 993 contacts → |
“HAP is now Health Alliance Plan by Henry Ford Health.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Meridianmimeridian.com HQ: Detroit, MI, United StatesReported employees: 1,001-5,000 | Detroit, MI, United States | 1,001-5,000 | Exact match | 911 contacts → |
“Meridian in Michigan’s (Meridian) mission is to continuously improve the quality of care in a low-resource environment.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Regal Medical Groupregalmed.com HQ: Los Angeles, CA, United StatesReported employees: 1,001-5,000 | Los Angeles, CA, United States | 1,001-5,000 | Exact match | 840 contacts → |
“Regal Medical Group, Lakeside Community Healthcare, ADOC Medical Group, and Community Surgery Center of Glendale – part of the Heritage Provider Network – is recognized as one of…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Harvard Pilgrim Health Careharvardpilgrim.org HQ: Canton, MA, United StatesReported employees: 1,001-5,000 | Canton, MA, United States | 1,001-5,000 | Exact match | 828 contacts → |
“Harvard Pilgrim and its family of companies provide health benefit plans, programs and services to more than 3 million customers in New England and beyond.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Community Health Choicecommunityhealthchoice.org HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 610 contacts → |
“We are a local, non-profit, Managed Care Organization (MCO), offering Children's Medicaid (STAR) and CHIP programs.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Florida Health Care Plansfhcp.com HQ: Daytona Beach, FL, United StatesReported employees: 1,001-5,000 | Daytona Beach, FL, United States | 1,001-5,000 | Exact match | 551 contacts → |
“Florida Health Care Plans is more than an insurance company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Culver City, CA, United StatesReported employees: 10001+ | Culver City, CA, United States | 10001+ | Exact match | 521 contacts → |
“Established in 1996, Prospect Medical Holdings, Inc, is a national leader in fully integrated healthcare.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Affinity Health Planaffinityplan.com HQ: Bronx, NY, United StatesReported employees: 501-1,000 | Bronx, NY, United States | 501-1,000 | Exact match | 512 contacts → |
“The mission of Affinity by Molina Healthcare (formerly Affinity Health Plan) is to improve the health and lives of its members by delivering high-quality health care.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Madison, United StatesReported employees: 501-1,000 | Madison, United States | 501-1,000 | Exact match | 483 contacts → |
“Group Health Cooperative of South Central Wisconsin (GHC-SCW) is a not-for-profit managed health care organization that provides the entire spectrum of health care services…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Connecticareconnecticare.com HQ: Farmington, CT, United StatesReported employees: 501-1,000 | Farmington, CT, United States | 501-1,000 | Exact match | 402 contacts → |
“ConnectiCare is a leading health plan in the state of Connecticut.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Buffalo Medical Groupbuffalomedicalgroup.com HQ: Buffalo, NY, United StatesReported employees: 501-1,000 | Buffalo, NY, United States | 501-1,000 | Exact match | 386 contacts → |
“At Buffalo Medical Group, we offer care that goes beyond simply treating you when you’re sick.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Best Doctors Insurancebestdoctorsinsurance.com HQ: Miami, FL, United StatesReported employees: 201-500 | Miami, FL, United States | 201-500 | Exact match | 350 contacts → |
“Best Doctors Insurance is the leading international health insurance company in Latin America, the Caribbean and Canada.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Calibrated Healthcarecalibratedhealthcare.com HQ: Ontario, CA, United StatesReported employees: 1,001-5,000 | Ontario, CA, United States | 1,001-5,000 | Exact match | 345 contacts → |
“Calibrated Healthcare Network (CHN) manages over 11 million lives in over 8 states, partnering with industry leaders in the area of managed care.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Simply Healthcare Planssimplyhealthcareplans.com HQ: Miami, FL, United StatesReported employees: 501-1,000 | Miami, FL, United States | 501-1,000 | Exact match | 342 contacts → |
“As a Florida, licensed health maintenance organization (HMO) and preferred provider organization (PPO), we offer health plans for people enrolled in Medicaid and/or Medicare…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Virginia Premiersentarahealthplans.com HQ: Richmond, VA, United StatesReported employees: Not recorded | Richmond, VA, United States | Not recorded | Exact match | 338 contacts → |
“Virginia Premier is now Sentara Health Plans.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Blue Cross & Blue Shield Of Mississippibcbsms.com HQ: Flowood, MS, United StatesReported employees: 1,001-5,000 | Flowood, MS, United States | 1,001-5,000 | Exact match | 325 contacts → |
“At Blue Cross & Blue Shield of Mississippi, we work daily to help Mississippians find their personal answers to this question through health and wellness partnerships with quality…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | The Health Plan THPhealthplan.org HQ: Wheeling, WV, United StatesReported employees: 501-1,000 | Wheeling, WV, United States | 501-1,000 | Exact match | 260 contacts → |
“The Health Plan is a clinically-driven, technology-enhanced, and customer-focused health maintenance organization that manages and improves the health and well-being of its…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Health maintenance organizations: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
162 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 163 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for health maintenance organizations?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many health maintenance organizations did RevenueBase find based in the United States?
The saved snapshot records 163 matching company records, 158,965 tracked contacts and 21,076 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Health maintenance organizations by geography
Cite this list
RevenueBase Data Team. Top 25 health maintenance organizations based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/health-maintenance-organizations/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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