Company lists · Data refreshed November 2026

Top 25 Health systems worldwide

RevenueBase identified 2,402 company matches for health systems worldwide as of November 2026 and tracks 1,165,568 professional contacts across them, including 317,931 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for health systems worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for health systems follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
2,402Companies
1,165,568Contacts tracked
317,931Verified emails
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The 25 largest health systems worldwide

Ranked by team size
Top 25 of 2,402 company matches for health systems worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNashville, TN, United StatesHQ recorded Nov 6, 202610001+72,477 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 202610001+41,920 contacts →

Exact match

“Alberta Health Services (AHS) is proud to be part of Canada’s first and largest provincewide, integrated health system, responsible for delivering health services to more than 4.5…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAltamonte Springs, GA, United StatesHQ recorded Nov 6, 2026n/a30,195 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchDublin, IrelandHQ recorded Nov 6, 202610001+28,006 contacts →

Exact match

“Our purpose is to provide safe, high quality health and personal social services to the population of Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChennai, IndiaHQ recorded Nov 6, 202610001+27,262 contacts →

Exact match

“Driven by the vision of its Chairman, Dr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202610001+26,857 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchNew York, United StatesHQ recorded Nov 6, 202610001+24,673 contacts →

Exact match

“At NewYork-Presbyterian, we put patients first.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchChesterfield, MO, United StatesHQ recorded Nov 6, 202610001+24,412 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAurora, CO, United StatesHQ recorded Nov 6, 202610001+18,698 contacts →

Exact match

“At UCHealth, we do things differently.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchQatarHQ recorded Nov 6, 202610001+17,649 contacts →

Exact match

“Hamad Medical Corporation (HMC) is the main provider of secondary and tertiary healthcare in Qatar and one of the leading hospital providers in the Middle East.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202610001+17,437 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMarietta, GA, United StatesHQ recorded Nov 6, 202610001+16,508 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202610001+15,997 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202610001+15,710 contacts →

Exact match

“The Mount Sinai Health System is an integrated health system committed to providing distinguished care, conducting transformative research, and advancing biomedical education.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSioux Falls, ND, United StatesHQ recorded Nov 6, 202610001+14,872 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRenton, WA, United StatesHQ recorded Nov 6, 202610001+14,066 contacts →

Exact match

“At Providence, our strength begins with understanding.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202610001+12,924 contacts →

Exact match

“NYC Health + Hospitals is the nation’s largest public health care delivery system.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 202610001+11,144 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202610001+11,101 contacts →

Exact match

“The Netcare Group (JSE: NTC) offers a unique, comprehensive range of medical services across the healthcare spectrum, enabling us to serve the health and care needs of each…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 202610001+10,635 contacts →

Exact match

“Fairview Health Services is Minnesota’s choice for healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchYork, PA, United StatesHQ recorded Nov 6, 202610001+10,347 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20265,001-10,00010,335 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKing Of Prussia, PA, United StatesHQ recorded Nov 6, 202610001+10,095 contacts →

Exact match

“One of the nation’s largest and most respected providers of hospital and healthcare services, Universal Health Services, Inc.(NYSE: UHS) has built an impressive record of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202610001+9,912 contacts →

Exact match

“Sharp HealthCare is a not-for-profit health care system based in San Diego, California, with four acute care hospitals, three specialty hospitals, three medical groups and a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchFranklin, TN, United StatesHQ recorded Nov 6, 202610001+9,433 contacts →

Exact match

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

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

Showing 25 of 2,402 health systems worldwide

See the full list, filter by size, metro and specialty, and access 317,931 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Health systems worldwide at a glance

As of Nov 6, 2026
27.3%Verified-email coverage
485.2Average contacts per company
51-200Median size (employees)
0.6%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
429
11-50
469
51-200
375
201-500
293
501-1,000
220
1,001-5,000
361
5,001-10,000
107
10001+
117

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for health systems are linked below.
What qualifies
Company records worldwide whose business descriptions match “health systems” 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. 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 317,931 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Health systems by location

7 lists · largest first

Every Health systems list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 systems”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many health systems are there worldwide?

RevenueBase identified 2,402 company matches for health systems worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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

Which country has the most health systems?

The United States leads with 648 companies, followed by India (165) and Germany (152). Every health systems list by country and city is linked on this page.

Which city has the most health systems?

Sao Paulo leads with 15 company records, followed by New Delhi (12) and Dubai (11).

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 317,931 professional contacts with verified work emails tracked across these 2,402 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.