Company lists · Data refreshed September 2026

Top 25 Integrated health systems based in the United States

Name: Integrated health systems based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,620 companies tracked

RevenueBase identified 1,620 integrated health systems headquartered in the United States as of September 2026 and tracks 1,249,770 professional contacts across them, including 346,190 with verified work emails. New York is the largest hub.

This list covers integrated health systems 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

1,620Companies

1,249,770Contacts tracked

346,190Verified emails

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The 25 largest integrated health systems based in the United States

Ranked by team size

Top 25 of 1,620 integrated health systems 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 integrated health systems: 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	Kaiser Permanente	Partial evidence	Oakland, CA, United StatesHQ checked Sep 17, 2026	10001+	116,185 contacts →
	Partial evidence “At the heart of health care, you’ll find Kaiser Permanente.” Source: RevenueBase Database · checked Sep 17, 2026
2	HCA Healthcare	Partial evidence	Nashville, TN, United StatesHQ checked Sep 17, 2026	10001+	68,631 contacts →
	Partial evidence “HCA Healthcare is dedicated to giving people a healthier tomorrow.” Source: RevenueBase Database · checked Sep 17, 2026
3	UPMC	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	10001+	33,934 contacts →
	Partial evidence “UPMC is a world-renowned, nonprofit health care provider and insurer committed to delivering exceptional, people-centered care and community services.” Source: RevenueBase Database · checked Sep 17, 2026
4	Banner Health	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
5	Adventhealth	Indirect evidence	Altamonte Springs, FL, United StatesHQ checked Sep 17, 2026	n/a	28,327 contacts →
	Indirect evidence “AdventHealth is a connected network of care that helps people feel whole – body, mind and spirit.” Source: RevenueBase Database · checked Sep 17, 2026
6	Intermountain Health	Strong evidence	Murray, UT, United StatesHQ checked Sep 17, 2026	10001+	26,905 contacts →
	Strong evidence “Headquartered in Utah with locations in six primary states and additional operations across the western U.S, Intermountain Health is a nonprofit system of 34 hospitals, 400+…” Source: RevenueBase Database · checked Sep 17, 2026
7	NYU Langone Health	Strong evidence	New York, NY, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
8	Baylor Scott & White Health	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	10001+	25,184 contacts →
	Indirect evidence “With us by your side, there's no stopping you.” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Sutter Health	Strong evidence	Sacramento, CA, United StatesHQ checked Sep 17, 2026	10001+	20,994 contacts →
	Strong evidence “Sutter Health is a not-for-profit, people-centered healthcare system providing comprehensive care throughout California.” Source: RevenueBase Database · checked Sep 17, 2026
11	Atrium Health	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 17, 2026	10001+	18,362 contacts →
	Partial evidence “Atrium Health, part of Advocate Health, is redefining how, when and where care is delivered.” Source: RevenueBase Database · checked Sep 17, 2026
12	Uchealth	Indirect evidence	Aurora, CO, United StatesHQ checked Sep 17, 2026	10001+	18,089 contacts →
	Indirect evidence “At UCHealth, we do things differently.” Source: RevenueBase Database · checked Sep 17, 2026
13	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
14	Sentara Health	Strong evidence	Virginia Beach, VA, United StatesHQ checked Sep 17, 2026	10001+	17,797 contacts →
	Strong evidence “Sentara Health, an integrated, not-for-profit health care delivery system, celebrates more than 135 years in pursuit of its mission -"we improve health every day." Sentara is one…” Source: RevenueBase Database · checked Sep 17, 2026
15	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
16	Memorial Hermann Health System	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	16,805 contacts →
	Partial evidence “Advancing Health.” Source: RevenueBase Database · checked Sep 17, 2026
17	Wellstar Health System	Strong evidence	Marietta, GA, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
18	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
19	Emory Healthcare	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	10001+	14,774 contacts →
	Partial evidence “At Emory Healthcare, we deliver world-class patient care, drive cutting-edge research and foster a culture of excellence and compassion.” Source: RevenueBase Database · checked Sep 17, 2026
20	Advocate Aurora Health	Strong evidence	Milwaukee, WI, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
21	Corewell Health	Indirect evidence	Grand Rapids, MI, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
22	Prisma Health	Partial evidence	Greenville, SC, United StatesHQ checked Sep 17, 2026	10001+	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 17, 2026
23	Mercy Health	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 17, 2026	10001+	11,136 contacts →
	Partial evidence “At Mercy Health, we understand that every family is a universe.” Source: RevenueBase Database · checked Sep 17, 2026
24	Tenet Healthcare	Partial evidence	Dallas, TX, United StatesHQ checked Sep 17, 2026	10001+	10,770 contacts →
	Partial evidence “Tenet Healthcare Corporation (NYSE: THC) is a diversified healthcare services company headquartered in Dallas.” Source: RevenueBase Database · checked Sep 17, 2026
25	Allegheny Health Network	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 17, 2026	10001+	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 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: integrated health systems. 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 integrated health systems.
Partial evidence: Its own public description names part of integrated health systems, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name integrated health systems. 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 1,620 integrated health systems based in the United States

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Integrated health systems based in the United States at a glance

As of Sep 17, 2026

27.7%Verified-email coverage

771.5Average contacts per company

51-200Median size (employees)

1.4%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

394

11-50

353

51-200

237

201-500

155

501-1,000

117

1,001-5,000

190

5,001-10,000

10001+

116

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 1,620 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 integrated health systems, 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 “integrated health systems”. 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 integrated health systems), 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 integrated health systems, 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, 346,190 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 integrated health systems, 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 integrated health systems are there based in the United States?

RevenueBase identified 1,620 integrated health systems 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?

Kaiser Permanente, headquartered in Oakland, tops this list with the largest team on record.

Which city has the most integrated health systems?

New York leads with 22 headquartered companies, followed by Houston (18) and Miami (17).

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 346,190 verified decision-maker contacts tracked across these 1,620 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.