Company lists · Data refreshed October 2026

Top 25 Multispecialty medical groups worldwide

RevenueBase identified 28,270 company matches for multispecialty medical groups worldwide as of October 2026 and tracks 2,782,477 professional contacts across them, including 608,440 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for multispecialty medical groups worldwide, 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 18, 2026. Country and city lists for multispecialty medical groups follow the table.

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 18, 2026 How this list was built
28,270Companies
2,782,477Contacts tracked
608,440Verified emails
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The 25 largest multispecialty medical groups worldwide

Ranked by team size
Top 25 of 28,270 company matches for multispecialty medical groups worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNashville, TN, United StatesHQ recorded Oct 18, 202610001+70,173 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2Exact matchPhoenix, AZ, United StatesHQ recorded Oct 18, 202610001+31,342 contacts →

Exact match

“Headquartered in Arizona, Banner Health is one of the largest nonprofit health care systems in the country.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3Exact matchChennai, IndiaHQ recorded Oct 18, 202610001+26,023 contacts →

Exact match

“Driven by the vision of its Chairman, Dr.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4Exact matchDallas, TX, United StatesHQ recorded Oct 18, 202610001+25,701 contacts →

Exact match

“With us by your side, there's no stopping you.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5Exact matchChesterfield, MO, United StatesHQ recorded Oct 18, 202610001+23,527 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6Exact matchAurora, CO, United StatesHQ recorded Oct 18, 202610001+18,447 contacts →

Exact match

“At UCHealth, we do things differently.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7Exact matchQatarHQ recorded Oct 18, 202610001+17,125 contacts →

Exact match

“Hamad Medical Corporation (HMC) is the main provider of secondary and tertiary healthcare in Qatar and one of the leading hospital providers in the Middle East.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Oct 18, 202610001+16,957 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9Exact matchEdison, NJ, United StatesHQ recorded Oct 18, 202610001+16,778 contacts →

Exact match

“Keep getting better.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10Exact matchCoral Gables, FL, United StatesHQ recorded Oct 18, 202610001+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 18, 2026 · View company records in RevenueBase
11Exact matchAtlanta, GA, United StatesHQ recorded Oct 18, 202610001+16,313 contacts →

Exact match

“Piedmont is empowering Georgians by changing health care.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12Exact matchMarietta, GA, United StatesHQ recorded Oct 18, 202610001+16,071 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13Exact matchLos Angeles, CA, United StatesHQ recorded Oct 18, 202610001+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 18, 2026 · View company records in RevenueBase
14Exact matchRenton, WA, United StatesHQ recorded Oct 18, 202610001+14,672 contacts →

Exact match

“At Providence, our strength begins with understanding.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15Exact matchAtlanta, GA, United StatesHQ recorded Oct 18, 202610001+14,374 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16Exact matchMinneapolis, MN, United StatesHQ recorded Oct 18, 202610001+13,973 contacts →

Exact match

“People at Allina Health have a career of making a difference in the lives of the millions of patients we see each year at our 90+ clinics, 12 hospitals and through a wide variety…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17Exact matchClearwater, FL, United StatesHQ recorded Oct 18, 202610001+13,593 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18Exact matchGrand Rapids, United StatesHQ recorded Oct 18, 202610001+12,976 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19Exact matchColumbus, OH, United StatesHQ recorded Oct 18, 202610001+12,953 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20Exact matchBaltimore, MD, United StatesHQ recorded Oct 18, 202610001+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 18, 2026 · View company records in RevenueBase
21Exact matchDallas, TX, United StatesHQ recorded Oct 18, 202610001+11,148 contacts →

Exact match

“Tenet Healthcare Corporation (NYSE: THC) is a diversified healthcare services company headquartered in Dallas.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22Exact matchCincinnati, OH, United StatesHQ recorded Oct 18, 202610001+11,124 contacts →

Exact match

“At Mercy Health, we understand that every family is a universe.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23Exact matchSão Paulo, BrazilHQ recorded Oct 18, 202610001+11,101 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24Exact matchPittsburgh, PA, United StatesHQ recorded Oct 18, 202610001+10,962 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25Exact matchSan Diego, CA, United StatesHQ recorded Oct 18, 202610001+10,735 contacts →

Exact match

“Scripps Health is a nonprofit integrated healthcare delivery system based in San Diego, Calif.”

Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase

Showing 25 of 28,270 multispecialty medical groups worldwide

See the full list, filter by size, metro and specialty, and access 608,440 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Multispecialty medical groups worldwide at a glance

As of Oct 18, 2026
21.9%Verified-email coverage
98.4Average contacts per company
11-50Median size (employees)
0.8%Largest-city concentration · Sao Paulo
Oct 18, 2026Page data refreshed

Companies by employee count

1-10
8,778
11-50
8,214
51-200
5,008
201-500
2,639
501-1,000
1,392
1,001-5,000
1,492
5,001-10,000
227
10001+
324

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for multispecialty medical groups are linked below.
What qualifies
Company records worldwide whose business descriptions match “multispecialty medical groups” 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. 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 608,440 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 18, 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.

Multispecialty medical groups by location

90 lists · largest first

Every Multispecialty medical groups 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 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 “multispecialty medical groups”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many multispecialty medical groups are there worldwide?

RevenueBase identified 28,270 company matches for multispecialty medical groups worldwide 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 country has the most multispecialty medical groups?

The United States leads with 9,705 companies, followed by India (2,712) and Brazil (2,119). Every multispecialty medical groups list by country and city is linked on this page.

Which city has the most multispecialty medical groups?

Sao Paulo leads with 238 company records, followed by Bangalore (189) and Hyderabad (161).

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 608,440 professional contacts with verified work emails tracked across these 28,270 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 18, 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.