Company lists · Data refreshed September 2026

Top 25 International hospital networks based in the United States

RevenueBase identified 188 international hospital networks headquartered in the United States as of September 2026 and tracks 309,882 professional contacts across them, including 75,342 with verified work emails. Houston is the largest hub.

This list covers international hospital 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 17, 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 17, 2026 86% judged on-target in blind review
188Companies
309,882Contacts tracked
75,342Verified emails
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The 25 largest international hospital networks based in the United States

Ranked by team size
Top 25 of 188 international hospital networks based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to international hospital 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
1Indirect evidenceNashville, TN, United StatesHQ checked Sep 17, 202610001+68,631 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceChesterfield, MO, United StatesHQ checked Sep 17, 202610001+23,118 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
3Indirect evidenceRenton, WA, United StatesHQ checked Sep 17, 202610001+18,035 contacts →

Indirect evidence

“At Providence, our strength begins with understanding.”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 17, 202610001+16,993 contacts →

Partial 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 17, 2026
5Strong evidenceCleveland, OH, United StatesHQ checked Sep 17, 202610001+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 17, 2026
6Indirect evidenceMarietta, GA, United StatesHQ checked Sep 17, 202610001+15,788 contacts →

Indirect 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 17, 2026
7Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202610001+15,745 contacts →

Indirect 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 17, 2026
8Partial evidenceBaltimore, MD, United StatesHQ checked Sep 17, 202610001+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 17, 2026
9Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 17, 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 17, 2026
10Partial evidenceKing Of Prussia, PA, United StatesHQ checked Sep 17, 202610001+9,706 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceFranklin, TN, United StatesHQ checked Sep 17, 202610001+8,914 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
12Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 17, 202610001+6,115 contacts →

Indirect evidence

“The mission of TriHealth is to improve the health status of the people we serve.”

Source: RevenueBase Database · checked Sep 17, 2026
13Partial evidenceOntario, CA, United StatesHQ checked Sep 17, 202610001+4,733 contacts →

Partial evidence

“About Prime Healthcare and Prime Healthcare Foundation: Prime Healthcare is an award-winning health system operating 54 hospitals and more than 360 outpatient locations in 15…”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceKalamazoo, MI, United StatesHQ checked Sep 17, 20265,001-10,0004,141 contacts →

Indirect evidence

“With over employees, more than 1,500 medical staff members, and 747 licensed beds, Bronson Healthcare is the largest employer and leading healthcare system in southwest Michigan.”

Source: RevenueBase Database · checked Sep 17, 2026
15Partial evidenceWhittier, CA, United StatesHQ checked Sep 17, 20265,001-10,0003,744 contacts →

Partial evidence

“PIH Health is a nonprofit, regional healthcare network that serves approximately 3 million residents in the Los Angeles County, Orange County and San Gabriel Valley region.”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceFlorence, SC, United StatesHQ checked Sep 17, 202610001+3,709 contacts →

Indirect evidence

“McLeod Health is the region's destination for medical excellence.”

Source: RevenueBase Database · checked Sep 17, 2026
17Indirect evidenceLakeland, FL, United StatesHQ checked Sep 17, 20265,001-10,0003,357 contacts →

Indirect evidence

“At Lakeland Regional Health, we place people at the heart of all we do.”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceColumbia, SC, United StatesHQ checked Sep 17, 202610001+2,983 contacts →

Indirect evidence

“Palmetto Health, the largest health care system in the South Carolina Midlands region and one of the state’s largest employers, comprises more than team members, physicians and…”

Source: RevenueBase Database · checked Sep 17, 2026
19Indirect evidenceWest Reading, PA, United StatesHQ checked Sep 17, 202610001+2,342 contacts →

Indirect evidence

“Tower Health is a vibrant, nationally recognized health system that serves a population of nearly 2.5 million people.”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidencePensacola, FL, United StatesHQ checked Sep 17, 20261,001-5,0002,076 contacts →

Indirect evidence

“Baptist Health Care is a not-for-profit health care organization based in northwest Florida that is committed to helping people throughout life’s journey.”

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceJackson, TN, United StatesHQ checked Sep 17, 20265,001-10,0001,950 contacts →

Indirect evidence

“Public, not-for-profit organization headquartered in Jackson, Tennessee.”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceTrenton, NJ, United StatesHQ checked Sep 17, 20261,001-5,0001,664 contacts →

Indirect evidence

“Capital Health is the region’s leader in providing progressive, quality patient care with significant investments in our exceptional physicians, nurses and staff, as well as…”

Source: RevenueBase Database · checked Sep 17, 2026
23Indirect evidenceWichita, KS, United StatesHQ checked Sep 17, 20261,001-5,0001,549 contacts →

Indirect evidence

“For more than 100 years, families in Wichita and throughout Kansas and Northern Oklahoma have said, “Take me to Wesley” to receive the quality care they need and deserve.”

Source: RevenueBase Database · checked Sep 17, 2026
24Partial evidenceNoblesville, IN, United StatesHQ checked Sep 17, 20261,001-5,0001,351 contacts →

Partial evidence

“Riverview Health is comprised of a full-service, 156-bed hospital in Noblesville, a 16-bed hospital in Westfield, as well as freestanding combined ER and urgent care facilities.”

Source: RevenueBase Database · checked Sep 17, 2026
25Indirect evidenceMechanicsburg, PA, United StatesHQ checked Sep 17, 20265,001-10,0001,334 contacts →

Indirect evidence

“Why Work For Us?”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 188 international hospital networks based in the United States

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International hospital networks based in the United States at a glance

As of Sep 17, 2026
24.3%Verified-email coverage
1648.3Average contacts per company
201-500Median size (employees)
2.7%Largest-city concentration · Houston
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
43
11-50
24
51-200
15
201-500
13
501-1,000
14
1,001-5,000
39
5,001-10,000
13
10001+
27

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 188 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 international hospital 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 “international hospital 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 international hospital 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 international hospital 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, 75,342 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 17, 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 international hospital 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 international hospital networks are there based in the United States?

RevenueBase identified 188 international hospital 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 international hospital networks?

Houston leads with 5 headquartered companies, followed by Pittsburgh (4) and Cleveland (3).

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 75,342 verified decision-maker contacts tracked across these 188 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 17, 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.