Company lists · Data refreshed September 2026
Top 25 Implantable cardioverter defibrillator makers based in the United States
RevenueBase identified 97 implantable cardioverter defibrillator makers headquartered in the United States as of September 2026 and tracks 23,324 professional contacts across them, including 9,679 with verified work emails. Houston is the largest hub.
This list covers implantable cardioverter defibrillator makers 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 20, 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.
The 25 largest implantable cardioverter defibrillator makers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 13,007 contacts → | ||||
Indirect evidence “Edwards Lifesciences (NYSE: EW), is the leading global structural heart innovation company, driven by a passion to improve patient lives.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 260 contacts → | ||||
Indirect evidence “CVRx is a commercial stage, public (NASDAQ: CVRX) medical devices company located in Minneapolis, Minnesota.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 216 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 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 208 contacts → | ||||
Indirect evidence “Cardiac Science is now part of the ZOLL® Medical Family.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 205 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 136 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 119 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 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 109 contacts → | ||||
Indirect evidence “For over 30 years, Mortara Instrument, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 109 contacts → | ||||
Indirect evidence “HeartWare is a global Class medical device company dedicated to creating revolutionary technology for the treatment of heart failure, which enable patients to get back to life.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 108 contacts → | ||||
Indirect evidence “Founded in 2009, PrepMD stands at the forefront of cardiac healthcare solutions, renowned for blending clinical expertise with technological innovation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 100 contacts → | ||||
Indirect evidence “Imricor Medical Systems, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 91 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 86 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 80 contacts → | ||||
Indirect evidence “Fukuda Denshi’s innovative technologies always have a strong impact around the world with our Electrocardiographs, Patient Monitoring Systems, and other medical engineering…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 78 contacts → | ||||
Indirect evidence “At Zywie, we’re redefining how cardiac data translates into clinical insight.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 71 contacts → | ||||
Indirect evidence “Cardiac RMS, Remote Monitoring Solutions, is an award-winning CIED remote monitoring service provider that partners with physician practices to best manage their remote device…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 68 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 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 62 contacts → | ||||
Indirect evidence “Field Medical is a clinical-stage medical technology company focused on advancing pulsed field ablation (PFA) for the treatment of cardiac arrhythmias, including ventricular…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 55 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 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 53 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 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 51 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 44 contacts → | ||||
Indirect evidence “Ventric Health is a healthcare technology company and medical device provider transforming clinical interventions in cardiovascular health.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 43 contacts → | ||||
Indirect evidence “Vektor Medical is redefining how arrhythmias are understood and treated.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 39 contacts → | ||||
Indirect evidence “CoreMap exists to improve patient outcomes by delivering advanced diagnostic technology to electrophysiologists and patients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 36 contacts → | ||||
Indirect evidence “Founded in 1991, with the specific aim of commercializing intellectual property related to artificial heart and lung technologies from the University of Michigan, MC3 has grown to…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: implantable cardioverter defibrillator makers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names implantable cardioverter defibrillator makers.
- Partial evidence
- Its own public description names part of implantable cardioverter defibrillator makers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name implantable cardioverter defibrillator makers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 97 implantable cardioverter defibrillator makers based in the United States
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Implantable cardioverter defibrillator makers based in the United States at a glance
As of Sep 20, 2026Companies by employee count
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 97 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 implantable cardioverter defibrillator makers, 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 “implantable cardioverter defibrillator makers”. 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 implantable cardioverter defibrillator makers), 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 implantable cardioverter defibrillator makers, 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, 9,679 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 20, 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 implantable cardioverter defibrillator makers, 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 implantable cardioverter defibrillator makers are there based in the United States?
RevenueBase identified 97 implantable cardioverter defibrillator makers 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?
Edwards Lifesciences, headquartered in Irvine, tops this list with the largest team on record.
Which city has the most implantable cardioverter defibrillator makers?
Houston leads with 4 headquartered companies, followed by Irvine (4) and Deerfield (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 9,679 verified decision-maker contacts tracked across these 97 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 20, 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.
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