Company lists · Data refreshed September 2026
Top 25 Heart rhythm management companies based in the United States
RevenueBase identified 265 heart rhythm management companies headquartered in the United States as of September 2026 and tracks 13,658 professional contacts across them, including 3,175 with verified work emails. Houston is the largest hub.
This list covers heart rhythm management 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 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 heart rhythm management companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 781 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 494 contacts → | ||||
Indirect evidence “CardioNet was just the beginning.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 421 contacts → | ||||
Indirect evidence “At Kestra, we stand for patients at-risk and the people who care for them.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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. | |||||
| 5 | 216 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 189 contacts → | ||||
Indirect evidence “AliveCor, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 148 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 142 contacts → | ||||
Strong evidence “The Heart Rhythm Society (HRS) is a 501(c)(3) international nonprofit organization.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 140 contacts → | ||||
Partial evidence “Murj® is cardiac device management software built different from the start.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 136 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 119 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 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 109 contacts → | ||||
Indirect evidence “For over 30 years, Mortara Instrument, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 109 contacts → | ||||
Partial 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. | |||||
| 16 | 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. | |||||
| 17 | 98 contacts → | ||||
Partial evidence “Anumana™ is harnessing industry-leading AI and translational science to decode electrical signals from the heart as never before, empowering healthcare providers to transform…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 91 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 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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. | |||||
| 20 | 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. | |||||
| 21 | 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. | |||||
| 22 | 73 contacts → | ||||
Partial evidence “Fourth Frontier is a pioneering health tech company that builds and offers products and services for monitoring and improving heart health for people across the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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. | |||||
| 24 | 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. | |||||
| 25 | 63 contacts → | ||||
Partial evidence “Ancora Heart is a medical device company dedicated to providing new treatment options for people with heart failure (HF).” 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: heart rhythm management companies. 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 heart rhythm management companies.
- Partial evidence
- Its own public description names part of heart rhythm management companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name heart rhythm management companies. 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 265 heart rhythm management companies based in the United States
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Heart rhythm management companies 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 265 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 heart rhythm management 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 “heart rhythm management 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 heart rhythm management 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 heart rhythm management 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, 3,175 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 heart rhythm management 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 heart rhythm management companies are there based in the United States?
RevenueBase identified 265 heart rhythm management 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?
Spacelabs Healthcare, headquartered in Snoqualmie, tops this list with the largest team on record.
Which city has the most heart rhythm management companies?
Houston leads with 12 headquartered companies, followed by Austin (9) and Irvine (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 3,175 verified decision-maker contacts tracked across these 265 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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