Company lists · Data refreshed September 2026

Top 25 Ecg monitor device companies worldwide

RevenueBase identified 1,015 ecg monitor device companies worldwide as of September 2026 and tracks 25,744 professional contacts across them, including 8,607 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers ecg monitor device companies 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 ecg monitor device companies 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
1,015Companies
25,744Contacts tracked
8,607Verified emails
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The 25 largest ecg monitor device companies worldwide

Ranked by team size
Top 25 of 1,015 ecg monitor device companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to ecg monitor device companies: 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
1Partial evidenceIrvine, CA, United StatesHQ checked Sep 19, 20261,001-5,0003,249 contacts →

Partial evidence

“For over 35 years, Masimo has developed innovative monitoring technologies designed to improve patient outcomes and streamline clinical workflows.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 20261,001-5,0001,754 contacts →

Indirect evidence

“iRhythm is a leading digital health care company that creates trusted solutions that detect, predict, and prevent disease.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial 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
4Partial evidenceIrvine, CA, United StatesHQ checked Sep 19, 2026201-500540 contacts →

Partial evidence

“Different Thinking for Better Healthcare Nihon Kohden America is a global leader and fast-growing manufacturer of instrumentation for Patient Monitoring, Sleep Assessment…”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceClamart, FranceHQ checked Sep 19, 2026501-1,000538 contacts →

Indirect evidence

“MicroPort CRM is now in the family of MicroPort CardioFlow Bringing together complementary expertise in structural heart intervention and cardiac rhythm management.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceMalvern, PA, United StatesHQ checked Sep 19, 2026201-500494 contacts →

Indirect evidence

“CardioNet was just the beginning.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceKirkland, WA, United StatesHQ checked Sep 19, 202651-200421 contacts →

Indirect evidence

“At Kestra, we stand for patients at-risk and the people who care for them.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 19, 2026201-500370 contacts →

Indirect evidence

“Ceribell is a medical technology company focused on transforming the diagnosis and management of patients with serious neurological conditions.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidencePanchkula, IndiaHQ checked Sep 19, 2026201-500242 contacts →

Indirect evidence

“Recorders & Medicare Systems Pvt.”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceMiddleton, WI, United StatesHQ checked Sep 19, 2026501-1,000217 contacts →

Partial evidence

“Natus' portfolio includes Neurodiagnostic and monitoring solutions including EEG, LTM, ICU, PSG, EMG, EP.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceDeerfield, WI, United StatesHQ checked Sep 19, 2026201-500208 contacts →

Indirect evidence

“Cardiac Science is now part of the ZOLL® Medical Family.”

Source: RevenueBase Database · checked Sep 19, 2026
12Strong evidenceClearwater, FL, United StatesHQ checked Sep 19, 2026201-500205 contacts →

Strong evidence

“PaceMate is the market-leading, tech-enabled cardiac device monitoring platform serving integrated delivery networks and academic health systems nationwide.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceMountain View, CA, United StatesHQ checked Sep 19, 202651-200189 contacts →

Indirect evidence

“AliveCor, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 19, 202651-200188 contacts →

Indirect evidence

“VitalConnect is a leader in wearable biosensor technology.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceChennai, IndiaHQ checked Sep 19, 2026501-1,000185 contacts →

Indirect evidence

“Established in 2001, Techindia delivers world-class, enterprise healthcare management solutions that bridge the Intersection of Healthcare & Information technology to work more…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceDehradun, IndiaHQ checked Sep 19, 202651-200170 contacts →

Indirect evidence

“At Sunfox Technologies, we are at the forefront of cardiac healthcare innovation, transforming lives with our flagship product, Spandan.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceBrooklyn, United StatesHQ checked Sep 19, 2026201-500158 contacts →

Partial evidence

“Say goodbye to external software for managing implanted cardiac devices.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceMelbourne, FL, United StatesHQ checked Sep 19, 202651-200157 contacts →

Indirect evidence

“ReactDx (React Diagnostics) is a leading innovator in the cardiac telemedicine and home sleep testing industries.”

Source: RevenueBase Database · checked Sep 19, 2026
19Partial evidenceHouston, TX, United StatesHQ checked Sep 19, 2026201-500148 contacts →

Partial evidence

“Octagos is modernizing remote cardiac monitoring with AI-powered automation, seamless EHR integrations, and accuracy proven in high-volume, real-world clinics.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceBaar, SwitzerlandHQ checked Sep 19, 20261,001-5,000141 contacts →

Indirect evidence

“SCHILLER was founded in 1974 by Alfred E.”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceKochi, IndiaHQ checked Sep 19, 202651-200133 contacts →

Partial evidence

“Fully Disposable, Multi-day, Wireless Ambulatory Cardiac Monitoring and RPM solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceBoston, MA, United StatesHQ checked Sep 19, 202651-200131 contacts →

Indirect evidence

“Empatica is a full-stack digital health company and an MIT spin-off, with offices in Boston (MA), Milan (Italy), and Seoul (South Korea).”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceDallas, TX, United StatesHQ checked Sep 19, 2026201-500125 contacts →

Partial evidence

“CortiCare provides continuous EEG Services for the ICU, NICU or EMU using a robust infrastructure of monitoring personnel and reading neurophysiologists.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceMahape, IndiaHQ checked Sep 19, 202651-200120 contacts →

Indirect evidence

“Maestros is India's leading medical diagnostic equipment and services organization, which focuses on empowering medical professionals and institutions, that treat cardiac…”

Source: RevenueBase Database · checked Sep 19, 2026
25Strong evidenceMt. Laurel, NJ, United StatesHQ checked Sep 19, 2026201-500119 contacts →

Strong evidence

“RhythMedix is a fully integrated cardiac monitoring company with in-house device manufacturing, software development, and U.S-based monitoring services.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 1,015 ecg monitor device companies worldwide

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Ecg monitor device companies worldwide at a glance

As of Sep 19, 2026
33.4%Verified-email coverage
25.4Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · Shenzhen
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
398
11-50
371
51-200
159
201-500
45
501-1,000
14
1,001-5,000
18
5,001-10,000
1
10001+
7

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 ecg monitor device companies, 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 ecg monitor device companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “ecg monitor device companies”. 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 ecg monitor device companies), 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 ecg monitor device companies, 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, 8,607 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.

Ecg monitor device companies by location

7 lists · largest first

Every Ecg monitor device companies 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 ecg monitor device companies, 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 ecg monitor device companies are there worldwide?

RevenueBase identified 1,015 ecg monitor device companies 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?

Masimo, headquartered in Irvine, tops this list with the largest team on record.

Which country has the most ecg monitor device companies?

The United States leads with 261 companies, followed by India (70) and Germany (49). Every ecg monitor device companies list by country and city is linked on this page.

Which city has the most ecg monitor device companies?

Shenzhen leads with 25 headquartered companies, followed by New York (12) and Cambridge (10).

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 8,607 verified decision-maker contacts tracked across these 1,015 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.