Company lists · Data refreshed October 2026

Top 25 Flagship hospitals based in the United States

Name: Flagship hospitals based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 1,074 companies tracked

RevenueBase identified 1,074 company matches for flagship hospitals associated with the United States as of October 2026 and tracks 1,155,647 professional contacts across them, including 287,809 with verified work emails. Chicago is the largest hub.

This list covers company matches for flagship hospitals associated with the United States, 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 October 12, 2026.

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 Oct 12, 2026 How this list was built

1,074Companies

1,155,647Contacts tracked

287,809Verified emails

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The 25 largest flagship hospitals based in the United States

Ranked by team size

Top 25 of 1,074 company matches for flagship hospitals based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	HCA Healthcare	Exact match	Nashville, TN, United StatesHQ recorded Oct 12, 2026	10001+	70,173 contacts →
	Exact match “HCA Healthcare is dedicated to giving people a healthier tomorrow.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Cleveland Clinic	Exact match	Cleveland, OH, United StatesHQ recorded Oct 12, 2026	10001+	43,622 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Northwell Health	Exact match	Lake Success, NY, United StatesHQ recorded Oct 12, 2026	10001+	33,735 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Lifespan	Exact match	Providence, RI, United StatesHQ recorded Oct 12, 2026	10001+	28,386 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	NYU Langone Health	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	10001+	26,353 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 · Oct 12, 2026 · View company records in RevenueBase
6	Vanderbilt University Medical Center	Exact match	Nashville, TN, United StatesHQ recorded Oct 12, 2026	10001+	19,619 contacts →
	Exact match “From specializing in transplants and pediatric cancer to solving undiagnosed diseases, we know solving the most complex problems prepares us to solve any problem.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Penn Medicine, University Of Pennsylvania Health System	Exact match	Philadelphia, PA, United StatesHQ recorded Oct 12, 2026	10001+	19,614 contacts →
	Exact match “Penn Medicine is a world leader in academic medicine, setting the standard for cutting-edge research, compassionate patient care, and the education of future health care…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Massachusetts General Hospital	Exact match	Boston, MA, United StatesHQ recorded Oct 12, 2026	10001+	18,228 contacts →
	Exact match “Guided by the needs of our patients and their families, Massachusetts General Hospital aims to deliver the very best health care in a safe, compassionate environment; to advance…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	UT Southwestern Medical Center	Exact match	Dallas, TX, United StatesHQ recorded Oct 12, 2026	10001+	17,708 contacts →
	Exact match “UT Southwestern is an academic medical center, world-renowned for its research, regarded among the best in the country for medical education and for clinical and scientific…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	University Hospitals	Exact match	Cleveland, OH, United StatesHQ recorded Oct 12, 2026	10001+	16,488 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Baptist Health	Exact match	Coral Gables, FL, United StatesHQ recorded Oct 12, 2026	10001+	16,390 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Ucla Health	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 12, 2026	10001+	15,799 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 · Oct 12, 2026 · View company records in RevenueBase
13	Mount Sinai Health System	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	10001+	15,485 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 · Oct 12, 2026 · View company records in RevenueBase
14	Cedars-Sinai	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 12, 2026	10001+	14,995 contacts →
	Exact match “Since its beginning in 1902, Cedars-Sinai has evolved to meet the healthcare needs of one of the most diverse regions in the nation, continually setting new standards for quality…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Michigan Medicine	Exact match	Ann Arbor, MI, United StatesHQ recorded Oct 12, 2026	10001+	13,685 contacts →
	Exact match “Michigan Medicine, based in Ann Arbor, Michigan, is part of one of the world’s leading universities.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Indiana University Health	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 12, 2026	10001+	13,453 contacts →
	Exact match “Indiana University Health is Indiana’s largest and most comprehensive system.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Northwestern Medicine	Exact match	Chicago, IL, United StatesHQ recorded Oct 12, 2026	10001+	12,293 contacts →
	Exact match “Northwestern Medicine is the collaboration between Northwestern Memorial HealthCare and Northwestern University Feinberg School of Medicine around a strategic vision to transform…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	University Of Maryland Medical System	Exact match	Baltimore, MD, United StatesHQ recorded Oct 12, 2026	10001+	12,239 contacts →
	Exact match “The University of Maryland Medical System (UMMS) was created in 1984 when the state-owned University Hospital became a private, nonprofit organization.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Johns Hopkins Hospital	Exact match	Baltimore, MD, United StatesHQ recorded Oct 12, 2026	10001+	11,680 contacts →
	Exact match “The Johns Hopkins Hospital is a world renowned leader in patient care, serving the greater Baltimore community and patients from all across the globe.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Montefiore Health System	Exact match	Bronx, NY, United StatesHQ recorded Oct 12, 2026	10001+	10,950 contacts →
	Exact match “Montefiore is one of New York’s premier academic health systems, renowned for its leading medical school, groundbreaking research and technology, and highly specialized…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Mass General Brigham	Exact match	Somerville, MA, United StatesHQ recorded Oct 12, 2026	10001+	10,627 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Atrium Health Wake Forest Baptist	Exact match	Winston-salem, NC, United StatesHQ recorded Oct 12, 2026	10001+	10,370 contacts →
	Exact match “Atrium Health Wake Forest Baptist is a nationally recognized academic medical center and health system based in Winston-Salem, NC, part of Advocate Health, the third-largest…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Ucsf Health	Exact match	San Francisco, CA, United StatesHQ recorded Oct 12, 2026	5,001-10,000	10,174 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 · Oct 12, 2026 · View company records in RevenueBase
24	St. Luke's University Health Network	Exact match	Bethlehem, PA, United StatesHQ recorded Oct 12, 2026	10001+	10,127 contacts →
	Exact match “St.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	UC SAN Diego Health	Exact match	San Diego, CA, United StatesHQ recorded Oct 12, 2026	10001+	9,879 contacts →
	Exact match “UC San Diego Health and Health Sciences has been caring for the community for almost 60 years.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “flagship hospitals”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,074 flagship hospitals based in the United States

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Flagship hospitals based in the United States at a glance

As of Oct 12, 2026

24.9%Verified-email coverage

1076.0Average contacts per company

501-1,000Median size (employees)

1.4%Largest-city concentration · Chicago

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

184

11-50

117

51-200

106

201-500

112

501-1,000

118

1,001-5,000

291

5,001-10,000

10001+

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 1,074 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “flagship hospitals” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 287,809 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 October 12, 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.

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

How many flagship hospitals are there based in the United States?

RevenueBase identified 1,074 company matches for flagship hospitals associated with the United States as of October 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 city has the most flagship hospitals?

Chicago leads with 15 company records, followed by Dallas (15) and Houston (14).

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 287,809 professional contacts with verified work emails tracked across these 1,074 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 October 12, 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.