Company lists · Data refreshed September 2026
Top 25 Health system affiliation data companies based in the United States
RevenueBase identified 671 health system affiliation data companies headquartered in the United States as of September 2026 and tracks 57,273 professional contacts across them, including 21,141 with verified work emails and 16,611 with mobile numbers. Chicago is the largest hub.
This list covers health system affiliation data 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 13, 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 health system affiliation data companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,674 contacts → | ||||
Partial evidence “Hitachi Vantara is The Data Foundation for Innovation.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 2 | 8,638 contacts → | ||||
Partial evidence “CorroHealth is the leading provider of clinically led healthcare analytics and technology-driven solutions, dedicated to positively impacting the financial performance for…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 3 | 7,033 contacts → | ||||
Strong evidence “Cotiviti’s infrastructure platform enables healthcare organizations to deliver better care at lower cost through advanced technology and data analytics that improve the quality…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4,733 contacts → | ||||
Strong evidence “About Prime Healthcare and Prime Healthcare Foundation: Prime Healthcare is an award-winning health system operating 54 hospitals and more than 360 outpatient locations in 15…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 5 | 3,106 contacts → | ||||
Partial evidence “Inovalon empowers payers, providers, pharmacies, and life sciences organizations with data and solutions to drive meaningful change in patient outcomes, business performance, and…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,645 contacts → | ||||
Strong evidence “Veradigm is an integrated data systems and services company that combines data-driven clinical insights with actionable tools to help healthcare stakeholders improve the quality…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,502 contacts → | ||||
Strong evidence “Health Catalyst helps healthcare organizations turn complex data into meaningful action.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,310 contacts → | ||||
Partial evidence “EXL Health combines deep domain expertise with analytic insights and technology-enabled services to transform how care is delivered, managed, and paid.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 9 | 837 contacts → | ||||
Strong evidence “Definitive Healthcare is the leading provider of data and analytics, focusing on the business side of healthcare.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 10 | 813 contacts → | ||||
Partial evidence “Tegria is a global healthcare consulting and services company delivering end-to-end solutions that help provider and payer organizations transform healthcare.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 11 | 775 contacts → | ||||
Partial evidence “Komodo Health is an AI company that helps organizations shaping the future of healthcare build the intelligence they need to move faster and more confidently.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 12 | 753 contacts → | ||||
Partial evidence “Garnet Health Medical Center, formerly known as Orange Regional Medical Center, is a 501(c)(3), non-profit organization.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 13 | 621 contacts → | ||||
Partial evidence “Whether helping an employer improve the health and well-being of its employees, a state Medicaid director with cost containment or managing federal programs that are advancing…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 14 | 585 contacts → | ||||
Strong evidence “ELLKAY is a trusted enterprise data management partner, driving innovation and connectivity across the healthcare ecosystem.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 15 | 546 contacts → | ||||
Strong evidence “Verisma, trusted by clients across 50 states, is redefining how healthcare organizations manage and use health data – ensuring it’s trusted, secure and actionable for real-time…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 16 | 477 contacts → | ||||
Strong evidence “Arcadia helps providers, payers, and government organizations transform healthcare data into predictive insights that drive better outcomes, increase revenue, and reduce costs.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 17 | 376 contacts → | ||||
Partial evidence “Ephicacy was formed in 2005 in New Jersey, US, with an objective of being a niche provider of data analytics services in supporting research and clinical trial activities in life…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 18 | 356 contacts → | ||||
Partial evidence “Our technology delivers the ROI, Return On Intelligence, that health plans need.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 19 | 345 contacts → | ||||
Partial evidence “On October 31, 2011, IMS Health completed the purchase of SDI Health, a Pennsylvania-based healthcare market insights and analytics firm.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 20 | 314 contacts → | ||||
Indirect evidence “i2e drives enterprise transformation for the life sciences industry through AI-powered portfolio and clinical intelligence solutions that power critical decision-making across…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 21 | 305 contacts → | ||||
Partial evidence “NantHealth, a member of the NantWorks ecosystem of companies, provides enterprise solutions that help businesses transform complex data into actionable insights.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 22 | 284 contacts → | ||||
Partial evidence “DSS provides actionable research, analytics & market insights to healthcare organizations.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 23 | 255 contacts → | ||||
Strong evidence “Data in Science Technologies (DST) makes sense of the world’s data for analytics and modeling in government, healthcare and research organizations.” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 24 | 230 contacts → | ||||
Strong evidence “Proxima Research is an international provider of data, technologies, and services for the healthcare sector, whose solutions are presented in more than 47 countries around the…” Source: RevenueBase Database · checked Sep 13, 2026Thanks. The Data Team will review it. | |||||
| 25 | 210 contacts → | ||||
Strong evidence “Harmony Healthcare IT (HHIT) is a data management firm that migrates and archives patient, employee, and business records for healthcare organizations.” Source: RevenueBase Database · checked Sep 13, 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: health system affiliation data 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 health system affiliation data companies.
- Partial evidence
- Its own public description names part of health system affiliation data companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name health system affiliation data 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 671 health system affiliation data companies based in the United States
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Health system affiliation data companies based in the United States at a glance
As of Sep 13, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 15.0dCompany record updated
Median 76.0dHow 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 health system affiliation data 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 “health system affiliation data 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 health system affiliation data 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 health system affiliation data 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, 21,141 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 13, 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 health system affiliation data 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 health system affiliation data companies are there based in the United States?
RevenueBase identified 671 health system affiliation data 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?
Hitachi Vantara, headquartered in Santa Clara, tops this list with the largest team on record.
Which city has the most health system affiliation data companies?
Chicago leads with 21 headquartered companies, followed by New York (19) and Nashville (13).
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 21,141 verified decision-maker contacts tracked across these 671 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 13, 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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