Company lists · Data refreshed September 2026

Top 25 Electrophysiology device companies based in the United States

RevenueBase identified 294 electrophysiology device companies headquartered in the United States as of September 2026 and tracks 18,433 professional contacts across them, including 6,441 with verified work emails. Irvine is the largest hub.

This list covers electrophysiology device companies 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 19, 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 19, 2026 86% judged on-target in blind review
294Companies
18,433Contacts tracked
6,441Verified emails
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The 25 largest electrophysiology device companies based in the United States

Ranked by team size
Top 25 of 294 electrophysiology device companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrophysiology 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
1Indirect evidenceLargo (tampa Bay), FL, United StatesHQ checked Sep 19, 20261,001-5,0002,744 contacts →

Indirect evidence

“CONMED is a global medical technology company that specializes in the development and sale of surgical and patient monitoring products and services that allow our physician…”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceMason, OH, United StatesHQ checked Sep 19, 20261,001-5,0001,353 contacts →

Indirect evidence

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

Indirect 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
4Indirect 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
5Indirect evidenceEden Prairie, MN, United StatesHQ checked Sep 19, 2026201-500289 contacts →

Indirect evidence

“ACIST Medical Systems, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 19, 20261,001-5,000289 contacts →

Indirect evidence

“Through its multi-modality platform, Volcano Corporation is the global leader in intravascular imaging for coronary and peripheral applications, and physiology.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceCarlsbad, CA, United StatesHQ checked Sep 19, 202651-200288 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 19, 2026201-500260 contacts →

Partial evidence

“CVRx is a commercial stage, public (NASDAQ: CVRX) medical devices company located in Minneapolis, Minnesota.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceMountain View, CA, United StatesHQ checked Sep 19, 202651-200235 contacts →

Indirect evidence

“The RNS® System is an award-winning technology developed and manufactured in Silicon Valley that has been recognized for its innovation.”

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

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceLake Oswego, OR, United StatesHQ checked Sep 19, 2026201-500216 contacts →

Partial evidence

“Micro Systems Engineering, Inc.(MSEI), with its main office in Lake Oswego, Oregon, is is a pioneer in developing innovative implantable medical device technologies and devices…”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect 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
13Partial evidenceClearwater, FL, United StatesHQ checked Sep 19, 2026201-500205 contacts →

Partial 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
14Indirect evidenceMountain View, CA, United StatesHQ checked Sep 19, 202651-200189 contacts →

Indirect evidence

“AliveCor, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 19, 202651-200136 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceBowdoin, ME, United StatesHQ checked Sep 19, 202651-200129 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceMt. Laurel, NJ, United StatesHQ checked Sep 19, 2026201-500119 contacts →

Partial 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
18Partial evidenceAlameda, CA, United StatesHQ checked Sep 19, 202651-200115 contacts →

Partial evidence

“iota Biosciences, a wholly-owned subsidiary of Astellas Pharma US, is a medical device company working to develop pioneering bioelectronics to advance the treatment and management…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceMilwaukee, WI, United StatesHQ checked Sep 19, 2026201-500109 contacts →

Indirect evidence

“For over 30 years, Mortara Instrument, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceSan Mateo, CA, United StatesHQ checked Sep 19, 202651-200102 contacts →

Indirect evidence

“Cala Health is a bioelectronic medicine company transforming the standard of care for chronic disease.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceSan Clemente, CA, United StatesHQ checked Sep 19, 2026201-500101 contacts →

Indirect evidence

“Reflow Medical, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceBurnsville, MN, United StatesHQ checked Sep 19, 202651-200100 contacts →

Indirect evidence

“Imricor Medical Systems, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceMilpitas, CA, United StatesHQ checked Sep 19, 202651-20091 contacts →

Partial evidence

“Elixir Medical is a medical device company committed to transforming care for patients with heart and vascular disease through innovation.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceColumbia, SC, United StatesHQ checked Sep 19, 202651-20091 contacts →

Partial evidence

“Rhythmlink International, LLC designs, manufactures and distributes medical devices and provides custom packaging, private labeling, custom products and contract manufacturing…”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceMarlborough, MA, United StatesHQ checked Sep 19, 202651-20086 contacts →

Partial evidence

“At CardioFocus, we specialize in providing electrophysiologists with innovative and effective tools that bring new levels of precision and control to the treatment of complex…”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 294 electrophysiology device companies based in the United States

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Electrophysiology device companies based in the United States at a glance

As of Sep 19, 2026
34.9%Verified-email coverage
62.7Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · Irvine
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
115
11-50
107
51-200
45
201-500
12
501-1,000
4
1,001-5,000
8
10001+
3

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 294 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 electrophysiology 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.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “electrophysiology 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 electrophysiology 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 electrophysiology device companies, 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, 6,441 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.

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 electrophysiology 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 electrophysiology device companies are there based in the United States?

RevenueBase identified 294 electrophysiology device companies 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?

Conmed Corporation, headquartered in Bay, tops this list with the largest team on record.

Which city has the most electrophysiology device companies?

Irvine leads with 10 headquartered companies, followed by Houston (8) and Santa Clara (7).

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 6,441 verified decision-maker contacts tracked across these 294 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.