Company lists · Data refreshed September 2026

Top 25 Cardiology clinics worldwide

RevenueBase identified 5,032 cardiology clinics worldwide as of September 2026 and tracks 76,561 professional contacts across them, including 12,813 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers cardiology clinics 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 19, 2026. Country and city lists for cardiology clinics 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 RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
5,032Companies
76,561Contacts tracked
12,813Verified emails
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The 25 largest cardiology clinics worldwide

Ranked by team size
Top 25 of 5,032 cardiology clinics worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to cardiology clinics: 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 evidenceDubai, United Arab EmiratesHQ checked Sep 19, 2026501-1,0001,244 contacts →

Indirect evidence

“Al Zahra Hospital Dubai has been designed and developed to provide premium medical care and comfort with modern equipment and a team of professional doctors.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceGuayaquil, EcuadorHQ checked Sep 19, 20261,001-5,0001,058 contacts →

Indirect evidence

“Somos una red de CENTRALES MÉDICAS integradas de atención ambulatoria con el propósito de ofrecer a los pacientes una atención completa personalizada de forma rápida y eficiente.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidencePorto Alegre, BrazilHQ checked Sep 19, 20261,001-5,0001,045 contacts →

Partial evidence

“O Instituto de Cardiologia - Fundação Universitária de Cardiologia (IC-FUC) foi criado em 1966 com o objetivo de desenvolver o ensino, aprimorar a assistência médica, incentivar…”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceMontreal, QC, CanadaHQ checked Sep 19, 20261,001-5,000967 contacts →

Partial evidence

“Depuis 1954, l'Institut de cardiologie de Montréal (ICM) est un leader mondial de la cardiologie.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceSaudi ArabiaHQ checked Sep 19, 2026n/a833 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceSnoqualmie, WA, United StatesHQ checked Sep 19, 20261,001-5,000781 contacts →

Partial evidence

“Spacelabs Healthcare is solely dedicated to developing patient monitoring and diagnostic cardiology technologies and services that empower providers to deliver exceptional patient…”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceKarachi, PakistanHQ checked Sep 19, 20261,001-5,000746 contacts →

Indirect evidence

“Tabba Heart Institute is a renowned healthcare organization dedicated to advancing cardiovascular care and research.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidencen/a1,001-5,000626 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceMilano, ItalyHQ checked Sep 19, 2026501-1,000604 contacts →

Partial evidence

“Il Centro Cardiologico Monzino è nato nel 1981 da una donazione del Cav.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceLittle Rock, AR, United StatesHQ checked Sep 19, 20261,001-5,000556 contacts →

Indirect evidence

“Arkansas Heart Hospital and area heart specialists have joined together with the goal of assembling the finest facilities, most advanced equipment and most highly skilled health…”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceCiudad Autónoma De Buenos Aires, ArgentinaHQ checked Sep 19, 2026501-1,000543 contacts →

Partial evidence

“Centro médico especializado en Cardiología Sanatorio de Salud Cardiovascular Visión Dar esperanza y calidad de vida a las personas con enfermedades cardiovasculares.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceBerlin, GermanyHQ checked Sep 19, 20261,001-5,000521 contacts →

Indirect evidence

“Das Deutsche Herzzentrum der Charité ist aus dem Zusammenschluss der herzmedizinischen Einrichtungen der Charité – Universitätsmedizin Berlin und des Deutschen Herzzentrums Berlin…”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceMalvern, PA, United StatesHQ checked Sep 19, 2026201-500494 contacts →

Indirect evidence

“CardioNet was just the beginning.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceBogotá D.c, ColombiaHQ checked Sep 19, 20261,001-5,000493 contacts →

Indirect evidence

“70 AÑOS siendo referente en salud en Colombia.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceSao Paulo, BrazilHQ checked Sep 19, 20261,001-5,000491 contacts →

Partial evidence

“O Instituto Dante Pazzanese de Cardiologia tem por finalidade a prestação de assistência médico-hospitalar, em regime ambulatorial, de emergência e de internação na área…”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidencePrague, Czech RepublicHQ checked Sep 19, 20261,001-5,000489 contacts →

Partial evidence

“The Institute of Clinical and Experimental Medicine (IKEM) is the largest superspecialized clinical and scientific research center in the Czech Republic.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceHouma, LA, United StatesHQ checked Sep 19, 20261,001-5,000470 contacts →

Indirect evidence

“Best Place to Work in Healthcare* Founded by Dr.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 19, 2026501-1,000436 contacts →

Indirect evidence

“What every physician wants most is to have the time, the tools and the resources to provide each and every patient with access to the most complete and effective care possible.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202651-200383 contacts →

Indirect evidence

“Cecelia Health is a virtual specialty medical practice that delivers integrated cardiometabolic care to improve health outcomes while increasing medical cost and pharmacy savings.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceNew Delhi, IndiaHQ checked Sep 19, 20261,001-5,000368 contacts →

Indirect evidence

“Fortis Escorts Heart Institute (FEHI), Delhi, a pioneer and Centre of Excellence in Cardiac Care, is recognised for its path-breaking work and service to the numerous heart…”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 19, 2026501-1,000346 contacts →

Indirect evidence

“DC Klinieken is een landelijke zorgorganisatie met zestien zelfstandige klinieken door heel Nederland en een digitale kliniek.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceFalls Church, VA, United StatesHQ checked Sep 19, 2026201-500299 contacts →

Indirect evidence

“Your Team.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 2026201-500281 contacts →

Indirect evidence

“The Texas Heart Institute at Baylor College of Medicine (THI), is a comprehensive cardiovascular health and research center located in the world-renowned Texas Medical Center…”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceNigeriaHQ checked Sep 19, 2026201-500266 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceFortaleza, BrazilHQ checked Sep 19, 2026201-500259 contacts →

Partial evidence

“Com 45 anos de história, o Hospital Prontocardio é pioneiro nos serviços de Cardiologia no Ceará.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 5,032 cardiology clinics worldwide

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Cardiology clinics worldwide at a glance

As of Sep 19, 2026
16.7%Verified-email coverage
15.2Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · Sao Paulo
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
2,346
11-50
1,596
51-200
630
201-500
223
501-1,000
83
1,001-5,000
56
5,001-10,000
2
10001+
13

Email recency is reported on each country list linked below.

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 cardiology clinics, 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
Every country. Country and city lists for cardiology clinics are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “cardiology clinics”. 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 cardiology clinics), 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 cardiology clinics, 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, 12,813 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 19, 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.

Cardiology clinics by location

12 lists · largest first

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

Countries

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 cardiology clinics, 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 cardiology clinics are there worldwide?

RevenueBase identified 5,032 cardiology clinics 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?

AL Zahra Pvt. Hospital Dubai, headquartered in Dubai, tops this list with the largest team on record.

Which country has the most cardiology clinics?

The United States leads with 1,509 companies, followed by Brazil (740) and India (304). Every cardiology clinics list by country and city is linked on this page.

Which city has the most cardiology clinics?

Sao Paulo leads with 85 headquartered companies, followed by New York (48) and Rio De Janeiro (47).

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 12,813 verified decision-maker contacts tracked across these 5,032 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 19, 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.