Company lists · Data refreshed September 2026

Top 25 Health networks based in the United States

RevenueBase identified 599 health networks headquartered in the United States as of September 2026 and tracks 722,199 professional contacts across them, including 219,881 with verified work emails. New York is the largest hub.

This list covers health networks headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
599Companies
722,199Contacts tracked
219,881Verified emails
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The 25 largest health networks based in the United States

Ranked by team size
Top 25 of 599 health networks based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to health networks: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNashville, TN, United StatesHQ checked Sep 20, 202610001+68,631 contacts →

Partial evidence

“HCA Healthcare is dedicated to giving people a healthier tomorrow.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidencePhoenix, AZ, United StatesHQ checked Sep 20, 202610001+30,832 contacts →

Partial evidence

“Headquartered in Arizona, Banner Health is one of the largest nonprofit health care systems in the country.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceAltamonte Springs, FL, United StatesHQ checked Sep 20, 2026n/a28,327 contacts →

Partial evidence

“AdventHealth is a connected network of care that helps people feel whole – body, mind and spirit.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceProvidence, RI, United StatesHQ checked Sep 20, 202610001+27,576 contacts →

Partial evidence

“Formed in 1994, Brown University Health (Formerly Lifespan) is a not-for-profit health system based in Providence, RI comprising three teaching hospitals of The Warren Alpert…”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202610001+25,776 contacts →

Partial evidence

“NYU Langone Health is a fully integrated health system that consistently achieves the best patient outcomes through a rigorous focus on quality that has resulted in some of the…”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceDallas, TX, United StatesHQ checked Sep 20, 202610001+25,184 contacts →

Indirect evidence

“With us by your side, there's no stopping you.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceChesterfield, MO, United StatesHQ checked Sep 20, 202610001+23,118 contacts →

Indirect evidence

“At Mercy, care is more than a job - it’s a calling.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceAurora, CO, United StatesHQ checked Sep 20, 202610001+18,089 contacts →

Indirect evidence

“At UCHealth, we do things differently.”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceEdison, NJ, United StatesHQ checked Sep 20, 202610001+16,477 contacts →

Indirect evidence

“Keep getting better.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceMarietta, GA, United StatesHQ checked Sep 20, 202610001+15,788 contacts →

Partial evidence

“At Wellstar Health System, our mission is to enhance the health and well-being of every person we serve.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 20, 202610001+15,745 contacts →

Partial evidence

“For more than half a century, UCLA Health has provided the best in healthcare and the latest in medical technology to the people of Los Angeles and throughout the world.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceSioux Falls, SD, United StatesHQ checked Sep 20, 202610001+14,293 contacts →

Partial evidence

“Sanford Health is the largest rural health system in the U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceGrand Rapids, MI, United StatesHQ checked Sep 20, 202610001+12,453 contacts →

Indirect evidence

“People are at the heart of everything we do, and the inspiration for our legacy of outstanding outcomes, innovation, strong community partnerships, philanthropy and transparency.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidencePittsburgh, PA, United StatesHQ checked Sep 20, 202610001+10,710 contacts →

Strong evidence

“Allegheny Health Network is an integrated health care delivery system serving the greater Western Pennsylvania region.”

Source: RevenueBase Database · checked Sep 20, 2026
15Partial evidenceSan Diego, CA, United StatesHQ checked Sep 20, 202610001+10,445 contacts →

Partial evidence

“Scripps Health is a nonprofit integrated healthcare delivery system based in San Diego, Calif.”

Source: RevenueBase Database · checked Sep 20, 2026
16Partial evidenceOak Brook, IL, United StatesHQ checked Sep 20, 202610001+10,188 contacts →

Partial evidence

“Advocate Health Care is proud to be a part of Advocate Health, the third-largest nonprofit integrated health system in the U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 20, 20265,001-10,00010,064 contacts →

Strong evidence

“UCSF Health is an integrated health care network encompassing several entities, including UCSF Medical Center, one of the nation’s top 10 hospitals according to U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceYork, PA, United StatesHQ checked Sep 20, 202610001+9,956 contacts →

Partial evidence

“WellSpan Health’s vision is to reimagine healthcare through the delivery of comprehensive, equitable health and wellness solutions throughout our continuum of care.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceFranklin, TN, United StatesHQ checked Sep 20, 202610001+8,914 contacts →

Partial evidence

“Community Health Systems is one of the nation's leading healthcare providers.”

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceScottsdale, AZ, United StatesHQ checked Sep 20, 202610001+8,463 contacts →

Partial evidence

“HonorHealth is one of Arizona’s largest nonprofit healthcare systems, serving a population of five million across the greater Phoenix metropolitan area and Florence, Arizona.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceWest Orange, NJ, United StatesHQ checked Sep 20, 202610001+7,121 contacts →

Partial evidence

“RWJBarnabas Health is New Jersey’s largest and most comprehensive academic health system, caring for more than 5 million people annually.”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceKettering, OH, United StatesHQ checked Sep 20, 202610001+6,642 contacts →

Partial evidence

“As a faith-based, nonprofit healthcare system, Kettering Health's mission is to live God's love by promoting and restoring health.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceCincinnati, OH, United StatesHQ checked Sep 20, 202610001+6,532 contacts →

Partial evidence

“Bon Secours Mercy Health (BSMH) is a global Catholic health ministry operating in the United States, Ireland and the Philippines.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceRockledge, FL, United StatesHQ checked Sep 20, 20265,001-10,0006,078 contacts →

Partial evidence

Health First is Central Florida's only fully integrated health system.”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceBirmingham, AL, United StatesHQ checked Sep 20, 202610001+5,286 contacts →

Partial evidence

“Formerly HealthSouth and Encompass Home Health & Hospice, we have combined our strengths as Encompass Health.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 599 health networks based in the United States

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Health networks based in the United States at a glance

As of Sep 20, 2026
30.4%Verified-email coverage
1205.7Average contacts per company
51-200Median size (employees)
1.8%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
108
11-50
123
51-200
71
201-500
43
501-1,000
43
1,001-5,000
93
5,001-10,000
42
10001+
76

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 599 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among health networks, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “health networks”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names health networks), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among health networks, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 219,881 across the full list. 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.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names health networks, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many health networks are there based in the United States?

RevenueBase identified 599 health networks headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

HCA Healthcare, headquartered in Nashville, tops this list with the largest team on record.

Which city has the most health networks?

New York leads with 11 headquartered companies, followed by Dallas (9) and Nashville (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 219,881 verified decision-maker contacts tracked across these 599 companies.

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.

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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 Smart Search, 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.