Company lists · Data refreshed September 2026

Top 25 Medical centers worldwide

Name: Medical centers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 10,250 companies tracked

RevenueBase identified 10,250 medical centers worldwide as of September 2026 and tracks 2,205,312 professional contacts across them, including 512,952 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers medical centers worldwide, 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. Country and city lists for medical centers follow the table.

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

10,250Companies

2,205,312Contacts tracked

512,952Verified emails

0Mobile numbers

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The 25 largest medical centers worldwide

Ranked by team size

Top 25 of 10,250 medical centers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to medical centers: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	HCA Healthcare	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 17, 2026	10001+	68,631 contacts →
	Indirect evidence “HCA Healthcare is dedicated to giving people a healthier tomorrow.” Source: RevenueBase Database · checked Sep 17, 2026
2	Mayo Clinic	Indirect evidence	Rochester, MN, United StatesHQ checked Sep 17, 2026	10001+	44,446 contacts →
	Indirect evidence “Mayo Clinic has expanded and changed in many ways, but our values remain true to the vision of our founders.” Source: RevenueBase Database · checked Sep 17, 2026
3	Cleveland Clinic	Strong evidence	Cleveland, OH, United StatesHQ checked Sep 17, 2026	10001+	42,981 contacts →
	Strong evidence “Cleveland Clinic, located in Cleveland, Ohio, is a not-for-profit, multispecialty academic medical center that integrates clinical and hospital care with research and education.” Source: RevenueBase Database · checked Sep 17, 2026
4	NYU Langone Health	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	25,776 contacts →
	Indirect 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 17, 2026
5	Apollo Hospitals	Indirect evidence	Chennai, IndiaHQ checked Sep 17, 2026	10001+	25,558 contacts →
	Indirect evidence “Driven by the vision of its Chairman, Dr.” Source: RevenueBase Database · checked Sep 17, 2026
6	MERCY	Indirect evidence	Chesterfield, MO, United StatesHQ checked Sep 17, 2026	10001+	23,118 contacts →
	Indirect evidence “At Mercy, care is more than a job - it’s a calling.” Source: RevenueBase Database · checked Sep 17, 2026
7	Henry Ford Health	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 17, 2026	10001+	18,586 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
8	Houston Methodist	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	18,058 contacts →
	Strong evidence “Houston Methodist is one of the nation’s leading health systems and academic medical centers.” Source: RevenueBase Database · checked Sep 17, 2026
9	Providence Health & Services	Indirect evidence	Renton, WA, United StatesHQ checked Sep 17, 2026	10001+	18,035 contacts →
	Indirect evidence “At Providence, our strength begins with understanding.” Source: RevenueBase Database · checked Sep 17, 2026
10	Dignity Health	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	10001+	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
11	Hackensack Meridian Health	Indirect evidence	Edison, NJ, United StatesHQ checked Sep 17, 2026	10001+	16,477 contacts →
	Indirect evidence “Keep getting better.” Source: RevenueBase Database · checked Sep 17, 2026
12	Wellstar Health System	Indirect evidence	Marietta, GA, United StatesHQ checked Sep 17, 2026	10001+	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
13	Ucla Health	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
14	Mount Sinai Health System	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	15,195 contacts →
	Indirect 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 17, 2026
15	Stanford Health Care	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 17, 2026	10001+	14,031 contacts →
	Indirect evidence “Stanford Health Care, with multiple facilities throughout the Bay Area, is internationally renowned for leading edge and coordinated care in cancer care, neurosciences…” Source: RevenueBase Database · checked Sep 17, 2026
16	Michigan Medicine	Partial evidence	Ann Arbor, MI, United StatesHQ checked Sep 17, 2026	10001+	13,627 contacts →
	Partial evidence “Michigan Medicine, based in Ann Arbor, Michigan, is part of one of the world’s leading universities.” Source: RevenueBase Database · checked Sep 17, 2026
17	Baycare Health System	Indirect evidence	Clearwater, FL, United StatesHQ checked Sep 17, 2026	10001+	13,405 contacts →
	Indirect evidence “BayCare is a leading not-for-profit academic health care system that connects individuals and families to a wide range of services at 16 hospitals, including a children’s…” Source: RevenueBase Database · checked Sep 17, 2026
18	NYC Health Hospitals	Indirect evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	12,497 contacts →
	Indirect evidence “NYC Health + Hospitals is the nation’s largest public health care delivery system.” Source: RevenueBase Database · checked Sep 17, 2026
19	Northwestern Medicine	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	10001+	11,896 contacts →
	Partial evidence “Northwestern Medicine is the collaboration between Northwestern Memorial HealthCare and Northwestern University Feinberg School of Medicine around a strategic vision to transform…” Source: RevenueBase Database · checked Sep 17, 2026
20	Erasmus MC	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 17, 2026	10001+	11,652 contacts →
	Indirect evidence “We are Erasmus MC.” Source: RevenueBase Database · checked Sep 17, 2026
21	Tenet Healthcare	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	10001+	10,770 contacts →
	Indirect evidence “Tenet Healthcare Corporation (NYSE: THC) is a diversified healthcare services company headquartered in Dallas.” Source: RevenueBase Database · checked Sep 17, 2026
22	Allegheny Health Network	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	10001+	10,710 contacts →
	Indirect evidence “Allegheny Health Network is an integrated health care delivery system serving the greater Western Pennsylvania region.” Source: RevenueBase Database · checked Sep 17, 2026
23	Grupo Fleury	Partial evidence	São Paulo, BrazilHQ checked Sep 17, 2026	10001+	10,468 contacts →
	Partial evidence “O Grupo Fleury é reconhecido como uma referência de qualidade em medicina diagnóstica no país, com soluções completas, coordenação de cuidado centrada no indivíduo, capacidade de…” Source: RevenueBase Database · checked Sep 17, 2026
24	Mass General Brigham	Partial evidence	Somerville, MA, United StatesHQ checked Sep 17, 2026	10001+	10,065 contacts →
	Partial 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 17, 2026
25	Ucsf Health	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 17, 2026	5,001-10,000	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 17, 2026

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: medical centers. 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 medical centers.
Partial evidence: Its own public description names part of medical centers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name medical centers. 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 10,250 medical centers worldwide

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Medical centers worldwide at a glance

As of Sep 17, 2026

23.3%Verified-email coverage

215.2Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

2,883

11-50

2,834

51-200

1,632

201-500

988

501-1,000

568

1,001-5,000

846

5,001-10,000

223

10001+

208

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 medical centers, 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.
Coverage: 31 countries, largest first: the United States, India, Brazil, Italy, Germany, Spain, France, Poland, the United Arab Emirates, Argentina and 21 more. Country and city lists for medical centers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “medical centers”. 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 medical centers), 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 medical centers, and records with no verified work email.
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, 512,952 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.

Medical centers by location

37 lists · largest first

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

Countries

Cities

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 medical centers, 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 medical centers are there worldwide?

RevenueBase identified 10,250 medical centers worldwide 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 country has the most medical centers?

The United States leads with 3,006 companies, followed by India (1,026) and Brazil (953). Every medical centers list by country and city is linked on this page.

Which city has the most medical centers?

Sao Paulo leads with 110 headquartered companies, followed by Dubai (93) and Bangalore (74).

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 512,952 verified decision-maker contacts tracked across these 10,250 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.