Company lists · Data refreshed September 2026
Top 25 Health system hospitals based in the United States
RevenueBase identified 1,970 health system hospitals headquartered in the United States as of September 2026 and tracks 1,152,667 professional contacts across them, including 301,857 with verified work emails. Houston is the largest hub.
This list covers health system hospitals 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 16, 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.
The 25 largest health system hospitals based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 68,631 contacts → | ||||
Partial evidence “HCA Healthcare is dedicated to giving people a healthier tomorrow.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 32,809 contacts → | ||||
Strong evidence “Northwell Health is New York State’s largest health care provider and private employer, with 28 hospitals, about outpatient facilities and more than affiliated physicians.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 30,832 contacts → | ||||
Strong evidence “Headquartered in Arizona, Banner Health is one of the largest nonprofit health care systems in the country.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 27,576 contacts → | ||||
Strong 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 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 25,776 contacts → | ||||
Strong 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 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 24,049 contacts → | ||||
Indirect evidence “At NewYork-Presbyterian, we put patients first.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23,118 contacts → | ||||
Indirect evidence “At Mercy, care is more than a job - it’s a calling.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 18,089 contacts → | ||||
Indirect evidence “At UCHealth, we do things differently.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 18,035 contacts → | ||||
Indirect evidence “At Providence, our strength begins with understanding.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 16,993 contacts → | ||||
Strong evidence “We provide quality, compassionate health care at more than 40 hospitals and care centers that are serving communities across California, Arizona and Nevada every minute of every…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16,216 contacts → | ||||
Strong evidence “Founded in 1866, University Hospitals serves the needs of patients through an integrated network of 23 hospitals (including 5 joint ventures), more than 50 health centers and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16,090 contacts → | ||||
Strong evidence “Baptist Health South Florida is the region’s largest not-for-profit healthcare organization with 12 hospitals, more than employees, 4,500 physicians, and 200 outpatient centers…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15,788 contacts → | ||||
Strong 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 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15,195 contacts → | ||||
Strong evidence “The Mount Sinai Health System is an integrated health system committed to providing distinguished care, conducting transformative research, and advancing biomedical education.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14,144 contacts → | ||||
Strong evidence “Northside Hospital, a certified Great Place To Work®, is one of Georgia’s top health systems.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13,458 contacts → | ||||
Strong evidence “Advocate Aurora Health and Atrium Health are now Advocate Health – the fifth-largest nonprofit integrated health system in the U.S.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12,497 contacts → | ||||
Strong evidence “NYC Health + Hospitals is the nation’s largest public health care delivery system.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11,561 contacts → | ||||
Partial evidence “The Johns Hopkins Hospital is a world renowned leader in patient care, serving the greater Baltimore community and patients from all across the globe.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11,391 contacts → | ||||
Partial evidence “Prisma Health is the largest not-for-profit health organization in South Carolina, serving more than 1.2 million patients annually.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10,102 contacts → | ||||
Partial evidence “Fairview Health Services is Minnesota’s choice for healthcare.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 10,065 contacts → | ||||
Strong evidence “Mass General Brigham is an integrated academic health care system, uniting great minds to solve the hardest problems in medicine for our communities and the world.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10,064 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 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: health system hospitals. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names health system hospitals.
- Partial evidence
- Its own public description names part of health system hospitals, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name health system hospitals. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,970 health system hospitals based in the United States
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Health system hospitals based in the United States at a glance
As of Sep 16, 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 1,970 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 system hospitals, 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 system hospitals”. 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 system hospitals), 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 system hospitals, 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, 301,857 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 16, 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 system hospitals, 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 system hospitals are there based in the United States?
RevenueBase identified 1,970 health system hospitals 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 system hospitals?
Houston leads with 21 headquartered companies, followed by New York (20) and Los Angeles (14).
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 301,857 verified decision-maker contacts tracked across these 1,970 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 16, 2026.
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Health system hospitals by geography
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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.