Company lists · Data refreshed September 2026

Top 25 Adventhealth hospitals based in the United States

RevenueBase identified 1,711 adventhealth hospitals headquartered in the United States as of September 2026 and tracks 601,850 professional contacts across them, including 140,337 with verified work emails and 238,135 with mobile numbers. Houston is the largest hub.

This list covers adventhealth hospitals 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 6, 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 6, 2026 86% judged on-target in blind review
1,711Companies
601,850Contacts tracked
140,337Verified emails
238,135Mobile numbers
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The 25 largest adventhealth hospitals based in the United States

Ranked by team size
Top 25 of 1,711 adventhealth hospitals based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to adventhealth hospitals: 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 6, 202610001+68,631 contacts →

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

Source: company website · checked Sep 6, 2026
2Partial evidenceLake Success, NY, United StatesHQ checked Sep 6, 202610001+32,809 contacts →

“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.”

Source: company website · checked Sep 6, 2026
3Partial evidenceBoston, MA, United StatesHQ checked Sep 6, 202610001+18,175 contacts →

“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…”

Source: company website · checked Sep 6, 2026
4Indirect evidenceEdison, NJ, United StatesHQ checked Sep 6, 202610001+16,477 contacts →

“Keep getting better.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceMarietta, GA, United StatesHQ checked Sep 6, 202610001+15,788 contacts →

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

Source: company website · checked Sep 6, 2026
6Partial evidenceAtlanta, GA, United StatesHQ checked Sep 6, 202610001+14,144 contacts →

“Northside Hospital, a certified Great Place To Work®, is one of Georgia’s top health systems.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceColumbus, OH, United StatesHQ checked Sep 6, 202610001+12,860 contacts →

“OhioHealth is a nationally recognized, not-for-profit, faith-based health system of more than associates, providers and volunteers.”

Source: company website · checked Sep 6, 2026
8Partial evidenceBaltimore, MD, United StatesHQ checked Sep 6, 202610001+11,561 contacts →

“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: company website · checked Sep 6, 2026
9Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202610001+10,710 contacts →

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

Source: company website · checked Sep 6, 2026
10Indirect evidenceFranklin, TN, United StatesHQ checked Sep 6, 202610001+8,914 contacts →

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

Source: company website · checked Sep 6, 2026
11Indirect evidenceScottsdale, AZ, United StatesHQ checked Sep 6, 202610001+8,463 contacts →

“HonorHealth is one of Arizona’s largest nonprofit healthcare systems, serving a population of five million across the greater Phoenix metropolitan area and Florence, Arizona.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 6, 202610001+7,994 contacts →

“Founded in 1955, Baptist Health serves families throughout the Northeast Florida region with high-quality, comprehensive care for every stage of life.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceFort Myers, FL, United StatesHQ checked Sep 6, 202610001+7,630 contacts →

“Lee Health is one of the largest nonprofit Health Systems in Florida.”

Source: company website · checked Sep 6, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 6, 202610001+7,461 contacts →

“The Mount Sinai Hospital is one of the nation's oldest, largest, and most respected hospitals, and a member of the Mount Sinai Health System.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceKettering, OH, United StatesHQ checked Sep 6, 202610001+6,642 contacts →

“As a faith-based, nonprofit healthcare system, Kettering Health's mission is to live God's love by promoting and restoring health.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceCincinnati, OH, United StatesHQ checked Sep 6, 202610001+6,115 contacts →

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

Source: company website · checked Sep 6, 2026
17Indirect evidenceRockville Centre, NY, United StatesHQ checked Sep 6, 202610001+4,293 contacts →

“When it comes to health care, Long Islanders have a choice.”

Source: company website · checked Sep 6, 2026
18Indirect evidenceValhalla, NY, United StatesHQ checked Sep 6, 202610001+4,266 contacts →

“The Westchester Medical Center Health Network (WMCHealth) is the pre-eminent provider of integrated health care in New York’s Hudson Valley region, serving nearly 2.5 million…”

Source: company website · checked Sep 6, 2026
19Indirect evidenceKalamazoo, MI, United StatesHQ checked Sep 6, 20265,001-10,0004,141 contacts →

“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: company website · checked Sep 6, 2026
20Indirect evidenceDayton, OH, United StatesHQ checked Sep 6, 202610001+3,953 contacts →

“Based in Dayton, Ohio, Premier Health’s mission is We care.”

Source: company website · checked Sep 6, 2026
21Partial evidenceMankato, MN, United StatesHQ checked Sep 6, 2026n/a3,881 contacts →

“Mayo Clinic Rochester is a hospital & health care company based out of 1025 Marsh St, Mankato, MN, United States.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceTallahassee, FL, United StatesHQ checked Sep 6, 20265,001-10,0003,378 contacts →

“Founded by the Tallahassee community in 1948, Tallahassee Memorial HealthCare (TMH) is a private, nonprofit community-based healthcare system that provides advanced care to a…”

Source: company website · checked Sep 6, 2026
23Partial evidenceFayetteville, NC, United StatesHQ checked Sep 6, 20265,001-10,0003,369 contacts →

“Cape Fear Valley Health is a 988-bed, 8-hospital regional health system, the 8th largest in North Carolina, with more than 1 million inpatient and outpatients annually.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceLakeland, FL, United StatesHQ checked Sep 6, 20265,001-10,0003,357 contacts →

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

Source: company website · checked Sep 6, 2026
25Indirect evidenceLansing, MI, United StatesHQ checked Sep 6, 20265,001-10,0003,309 contacts →

“We are now University of Michigan Health-Sparrow.”

Source: company website · checked Sep 6, 2026

Showing 25 of 1,711 adventhealth hospitals based in the United States

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Adventhealth hospitals based in the United States at a glance

As of Sep 6, 2026
23.3%Verified-email coverage
39.6%Mobile-number coverage
351.8Average contacts per company
51-200Median size (employees)
1.2%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
411
11-50
297
51-200
216
201-500
218
501-1,000
170
1,001-5,000
273
5,001-10,000
35
10001+
86

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 adventhealth hospitals, 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 “adventhealth hospitals”. 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 adventhealth hospitals), 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 adventhealth hospitals, 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, 140,337 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 6, 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 adventhealth hospitals, 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 adventhealth hospitals are there based in the United States?

RevenueBase identified 1,711 adventhealth hospitals 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 adventhealth hospitals?

Houston leads with 21 headquartered companies, followed by Chicago (13) and Los Angeles (11).

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 140,337 verified decision-maker contacts tracked across these 1,711 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 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 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.