Company lists · Data refreshed September 2026

Top 25 Wearable cardioverter defibrillator manufacturers based in the United States

RevenueBase identified 57 wearable cardioverter defibrillator manufacturers headquartered in the United States as of September 2026 and tracks 3,252 professional contacts across them, including 1,325 with verified work emails. Houston is the largest hub.

This list covers wearable cardioverter defibrillator manufacturers 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
57Companies
3,252Contacts tracked
1,325Verified emails
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The 25 largest wearable cardioverter defibrillator manufacturers based in the United States

Ranked by team size
Top 25 of 57 wearable cardioverter defibrillator manufacturers 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 wearable cardioverter defibrillator manufacturers: 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 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
2Indirect evidenceLake Oswego, OR, United StatesHQ checked Sep 19, 2026201-500216 contacts →

Indirect 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
3Indirect 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
4Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 19, 202651-200136 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
5Strong evidenceGuilford, CT, United StatesHQ checked Sep 19, 202651-200126 contacts →

Strong evidence

“Defibtech, LLC, is a leader and innovator in the design and manufacture of automated external defibrillators (AEDs) and other lifesaving resuscitation products such as the new…”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceMt. Laurel, NJ, United StatesHQ checked Sep 19, 2026201-500119 contacts →

Indirect 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
7Indirect evidenceJohns Creek, GA, United StatesHQ checked Sep 19, 202651-20078 contacts →

Indirect evidence

“At Zywie, we’re redefining how cardiac data translates into clinical insight.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceCarlsbad, CA, United StatesHQ checked Sep 19, 202651-20068 contacts →

Indirect evidence

“Acutus Medical is a dynamic arrhythmia care company focused on developing distinct, innovative technologies that provide physicians and patients with improved results.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceSt. Paul, MN, United StatesHQ checked Sep 19, 202651-20055 contacts →

Indirect evidence

“Rhythm Express is at the forefront of cardiac monitoring technology, uniting compassionate care with innovative solutions to improve the quality of life for cardiac patients.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceEatontown, NJ, United StatesHQ checked Sep 19, 202651-20053 contacts →

Indirect evidence

“Avertix is committed to advancing life-sustaining patient care and the long-term management of Advanced Cardiovascular Disease through innovation, clinical science, and…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceBellevue, WA, United StatesHQ checked Sep 19, 202611-5051 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceSan Diego, WA, United StatesHQ checked Sep 19, 202611-5043 contacts →

Indirect evidence

“Vektor Medical is redefining how arrhythmias are understood and treated.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceDiamond Bar, CA, United StatesHQ checked Sep 19, 202651-20040 contacts →

Indirect evidence

“QT Medical is a medical device and services company specializing in portable wireless cloud-connected cardiac diagnostic/monitoring devices for use by anyone.anytime.anywhere.™ As…”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceTampa, FL, United StatesHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“Delivering cutting-edge cardiac medical devices to clinicians since 1994.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceClearwater, FL, United StatesHQ checked Sep 19, 202611-5012 contacts →

Indirect evidence

“Mawi Heart is a digital health company that revolutionizes the way we diagnose, react and prevent the three largest causes of death in the world: heart failures, heart attacks…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceDenver, CO, United StatesHQ checked Sep 19, 202611-5010 contacts →

Indirect evidence

“At HeartHero, we’re on a mission to change the way we respond to Sudden Cardiac Arrest (SCA).”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceBeaverton, OR, United StatesHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“VisCardia Inc is a privately held medical device company in Portland Oregon developing a novel chronic heart failure therapy.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 19, 202651-2009 contacts →

Indirect evidence

“EXPECT MORE.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidencePewaukee, WI, United StatesHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“Our mission is to provide patients with instant feedback in detecting arrhythmias on the go or at home to give them peace of mind and help them make more informed decisions about…”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceTampa, United StatesHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“Cardiac Monitor”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceSt Paul, MN, United StatesHQ checked Sep 19, 20261-106 contacts →

Indirect evidence

“Calyan Technologies is an early-stage medical-technology company creating a novel approach to managing cardiac rhythm disorders.”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceSolana Beach, CA, United StatesHQ checked Sep 19, 202611-504 contacts →

Partial evidence

“National Cardiac is a leading innovator in digital health solutions, delivering the next generation of wearable medical biosensors for the management, diagnosis, and treatment of…”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceMt. Olive, NJ, United StatesHQ checked Sep 19, 202611-503 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceUsa, United StatesHQ checked Sep 19, 202611-503 contacts →

Partial evidence

“Rithem Life Sciences is a technology company, that redesigns and manufactures life saving medical equipment.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidencePittsburgh, PA, United StatesHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“Lifeware Labs is a wearable electronics company specializing in medical devices for combat medics and first responders.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 57 wearable cardioverter defibrillator manufacturers based in the United States

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Wearable cardioverter defibrillator manufacturers based in the United States at a glance

As of Sep 19, 2026
40.7%Verified-email coverage
57.1Average contacts per company
11-50Median size (employees)
7.0%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
20
51-200
16
201-500
3
501-1,000
1
1,001-5,000
3
10001+
2

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 57 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 wearable cardioverter defibrillator manufacturers, 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 “wearable cardioverter defibrillator manufacturers”. 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 wearable cardioverter defibrillator manufacturers), 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 wearable cardioverter defibrillator manufacturers, 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, 1,325 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 wearable cardioverter defibrillator manufacturers, 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 wearable cardioverter defibrillator manufacturers are there based in the United States?

RevenueBase identified 57 wearable cardioverter defibrillator manufacturers 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?

Kestra Medical Technologies, INC, headquartered in Kirkland, tops this list with the largest team on record.

Which city has the most wearable cardioverter defibrillator manufacturers?

Houston leads with 4 headquartered companies, followed by Deerfield (3) and Irvine (3).

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 1,325 verified decision-maker contacts tracked across these 57 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.