Company lists · Data refreshed September 2026
Top 25 Hl7 and fhir software companies based in the United States
RevenueBase identified 204 hl7 and fhir software companies headquartered in the United States as of September 2026 and tracks 4,395 professional contacts across them, including 2,051 with verified work emails. Boston is the largest hub.
This list covers hl7 and fhir software 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 28, 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 hl7 and fhir software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 585 contacts → | ||||
Indirect evidence “ELLKAY is a trusted enterprise data management partner, driving innovation and connectivity across the healthcare ecosystem.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 314 contacts → | ||||
Indirect evidence “Rhapsody provides healthcare organizations with infrastructure for agent-ready interoperability so you can connect systems, reduce integration burden, and prepare your data for…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 159 contacts → | ||||
Indirect evidence “iatricSystems is a healthcare technology company dedicated to helping healthcare organizations enhance their IT investments.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 141 contacts → | ||||
Indirect evidence “Redox helps providers, payers, health tech vendors, EHRs, and Life Sciences power better care with real-time data exchange.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 124 contacts → | ||||
Indirect evidence “Long before they were buzzwords, market segments or government incentive programs, concepts like interoperability, data liquidity, patient engagement and meaningful use were…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 120 contacts → | ||||
Partial evidence “1upHealth provides the healthcare industry’s most sophisticated FHIR-enabled health data platform for claims and clinical data acquisition, exchange, and compute.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 120 contacts → | ||||
Indirect evidence “b.well Connected Health is solving healthcare’s fragmentation problem.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 117 contacts → | ||||
Partial evidence “Lantana Consulting Group provides services and software solutions for standards-based health information exchange.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 115 contacts → | ||||
Indirect evidence “Clinical Architecture is the leading provider of innovative healthcare IT solutions focused on the quality and usability of clinical information.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 113 contacts → | ||||
Partial evidence “Empeek is a custom healthcare software development company that helps healthtech startups and medical facilities create and leverage innovative, HIPAA/HITECH compliant technology…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 109 contacts → | ||||
Indirect evidence “Health Gorilla, a designated QHIN under TEFCA, is a leading provider of interoperability solutions delivering secure, real-time access to structured, AI-ready health data.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 84 contacts → | ||||
Indirect evidence “Health Data Movers (HDM) is a “Best in KLAS” healthcare technology services firm.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 71 contacts → | ||||
Partial evidence “Brackets Private Limited is a - helping providers, startups, and enterprises build secure, scalable, and compliant digital health software, AI Scribes,AI Ambient Listening, AI…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 70 contacts → | ||||
Partial evidence “Health Samurai helps digital health startups, healthcare providers, health plans, and IT vendors to develop FHIR-based solutions with the Aidbox FHIR Platform.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 64 contacts → | ||||
Indirect evidence “ClinDCast is a full-service Healthcare IT product solutions and services company headquartered in the Wesley Chapel, Florida.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 61 contacts → | ||||
Indirect evidence “At Ecaresoft Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 60 contacts → | ||||
Indirect evidence “Amalgam Rx empowers patients and providers to make the best decisions possible-within clinical workflows and everyday life.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 56 contacts → | ||||
Indirect evidence “Health IT-and the business processes that surround and depend on it-has the potential to create real and lasting improvements that benefit patients, providers, and all…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 44 contacts → | ||||
Partial evidence “Established in 2007, Gaine Technology is a pioneering healthcare software company specializing in advanced data management solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 42 contacts → | ||||
Partial evidence “DataFirst is a software development and engineering company headquartered in Raleigh, North Carolina.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 41 contacts → | ||||
Indirect evidence “Multi-year NVTC 100 award winner - Gartner Cool Vendor - CMMI Institute Capability Champion - FedHealth Innovation award winner - ACT-IAC Innovation award winner AEGIS.net, Inc.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 40 contacts → | ||||
Indirect evidence “Bitscopic is a healthcare technology company delivering decision-ready data to support clinical, operational, and research excellence.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 40 contacts → | ||||
Indirect evidence “Technology Rivers is a U.S.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 39 contacts → | ||||
Indirect evidence “Twenty five years in healthcare IT teaches you that the hardest problems are rarely the ones on the agenda.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 37 contacts → | ||||
Indirect evidence “Applied Informatics is an NYC-based Health IT, Big Data and Semantic technology company.” Source: RevenueBase Database · checked Sep 28, 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: hl7 and fhir software 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 hl7 and fhir software companies.
- Partial evidence
- Its own public description names part of hl7 and fhir software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hl7 and fhir software 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 204 hl7 and fhir software companies based in the United States
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Hl7 and fhir software companies based in the United States at a glance
As of Sep 28, 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 204 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 hl7 and fhir software 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 “hl7 and fhir software 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 hl7 and fhir software 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 hl7 and fhir software 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, 2,051 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 28, 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 hl7 and fhir software 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 hl7 and fhir software companies are there based in the United States?
RevenueBase identified 204 hl7 and fhir software 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?
Ellkay, headquartered in Elmwood Park, tops this list with the largest team on record.
Which city has the most hl7 and fhir software companies?
Boston leads with 6 headquartered companies, followed by Austin (5) and San Francisco (5).
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 2,051 verified decision-maker contacts tracked across these 204 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 28, 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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