Company lists · Data refreshed November 2026

Top 21 Fhir compliant api providers based in the United States

RevenueBase identified 34 company matches for fhir compliant api providers associated with the United States as of November 2026 and tracks 972 professional contacts across them, including 552 with verified work emails. Boston is the largest hub.

This list covers company matches for fhir compliant api providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
34Companies
972Contacts tracked
552Verified emails
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The 21 largest fhir compliant api providers based in the United States

Ranked by team size
Top 21 of 34 company matches for fhir compliant api providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBoston, MA, United StatesHQ recorded Nov 6, 2026201-500324 contacts →

Exact match

“Rhapsody provides healthcare organizations with infrastructure for agent-ready interoperability so you can connect systems, reduce integration burden, and prepare your data for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBaltimore, SC, United StatesHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“b.well Connected Health is solving healthcare’s fragmentation problem.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“1upHealth provides the healthcare industry’s most sophisticated FHIR-enabled health data platform for claims and clinical data acquisition, exchange, and compute.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Health Samurai helps digital health startups, healthcare providers, health plans, and IT vendors to develop FHIR-based solutions with the Aidbox FHIR Platform.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDover, DE, United StatesHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Healthcare software is hard because healthcare data is hard.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchColumbia, MD, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Mettle Solutions stands at the forefront of healthcare information technology, specializing in pioneering interoperability solutions that streamline data exchange across the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMiami, FL, United StatesHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Agnos is a custom healthcare software development company based in Miami, FL.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRoswell, FL, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“NAVOMI is a specialized Consulting and Solutions company focused on solving problems with interoperability focused in Healthcare and Public Health.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDes Moines, IA, United StatesHQ recorded Nov 6, 20261-1014 contacts →

Exact match

“Red Rover Health is redefining interoperability for healthcare by delivering a secure, open “app store” model that empowers developers, health systems, and patients alike.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“An HIE Platform for the Modern Cloud, Built on HL7 FHIR® Outcome Healthcare has offers an integrated and feature-rich Healthcare Information Exchange (HIE) architecture, based…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchChesterfield, MO, United StatesHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“At Darena Health we build solutions that simplify compliance, accelerate interoperability, and support better care delivery.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMobile, AL, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Innovar Healthcare is a trusted leader in healthcare interoperability, providing the tools, platforms, and managed services that make health data exchange simple, secure, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGrand Blanc, MI, United StatesHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“Carefluence was the first interoperability platform in the United States to have an ONC certified FHIR-based OpenAPI, back in 2016.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNew Orleans, LA, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Dynamic Health IT, Inc.(DHIT) was established in and is headquartered in New Orleans.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Refactoring healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPortsmouth, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Medcurio gives healthcare systems secure on-demand access to all of their EHR data.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBoston, MA, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Helios Software is a Boston-based health technology company dedicated to making HL7® FHIR® accessible for health organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Vermonster builds healthcare products that clinicians trust and patients love.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMt Laurel, United StatesHQ recorded Nov 6, 20261-104 contacts →

Exact match

“HealthElence is a name that combines the words “health” and “excellence“.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchFt Myers, FL, United StatesHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Rockit is a software development and consultancy with a specialty is healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchOverland Park, KS, United StatesHQ recorded Nov 6, 20261-101 contacts →

Exact match

“bluepoint2 is a software company based out of Prairie Village, KS that specializes in providing consumer integration solutions in the field of healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 21 of 34 fhir compliant api providers based in the United States

See the full list, filter by size, metro and specialty, and access 552 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fhir compliant api providers based in the United States at a glance

As of Nov 6, 2026
56.8%Verified-email coverage
28.6Average contacts per company
11-50Median size (employees)
11.8%Largest-city concentration · Boston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
10
51-200
7
201-500
1

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 34 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “fhir compliant api providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 552 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “fhir compliant api providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fhir compliant api providers are there based in the United States?

RevenueBase identified 34 company matches for fhir compliant api providers associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Rhapsody tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most fhir compliant api providers?

Boston leads with 4 company records, followed by New York (3) and Los Angeles (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 552 professional contacts with verified work emails tracked across these 34 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.