Company lists · Data refreshed September 2026

Top 25 Healthcare api platform companies based in Boston, United States

Name: Healthcare api platform companies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 46 companies tracked

RevenueBase identified 46 healthcare api platform companies headquartered in Boston, United States as of September 2026 and tracks 7,679 professional contacts across them, including 3,987 with verified work emails. Across the United States, New York is the largest hub for this category (184 companies); Boston has 46.

This list covers healthcare api platform companies headquartered in Boston, 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 14, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

46Companies

7,679Contacts tracked

3,987Verified emails

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The 25 largest healthcare api platform companies based in Boston, United States

Ranked by team size

Top 25 of 46 healthcare api platform companies based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to healthcare api platform companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ZELIS	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1,001-5,000	2,484 contacts →
	Strong evidence “Zelis is modernizing the healthcare financial experience by providing a connected platform that bridges the gaps and aligns interests across payers, providers, and healthcare…” Source: RevenueBase Database · checked Sep 14, 2026
2	Healthedge	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	5,001-10,000	1,684 contacts →
	Indirect evidence “HealthEdge® offers AI-powered operational infrastructure for health insurance companies, guaranteeing an enduring financial edge in an increasingly competitive market.” Source: RevenueBase Database · checked Sep 14, 2026
3	Amwell	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	501-1,000	1,019 contacts →
	Partial evidence “At Amwell, we’re all about making healthcare simpler, smarter, and more accessible.” Source: RevenueBase Database · checked Sep 14, 2026
4	Arcadia	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	201-500	477 contacts →
	Partial 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 14, 2026
5	Rxsense	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	201-500	411 contacts →
	Partial evidence “RxSense is a leading healthcare technology company transforming the delivery of pharmacy benefits.” Source: RevenueBase Database · checked Sep 14, 2026
6	Rhapsody	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	201-500	314 contacts →
	Partial 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 14, 2026
7	Abacus Insights	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	201-500	296 contacts →
	Strong evidence “Abacus Insights is a healthcare technology leader with the only data usability platform and solutions built specifically for U.S.” Source: RevenueBase Database · checked Sep 14, 2026
8	Kyruus Health	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	201-500	289 contacts →
	Partial evidence “As the industry’s largest care access platform Kyruus Health enables our partners to efficiently guide and match people to the care that’s right for them.” Source: RevenueBase Database · checked Sep 14, 2026
9	1uphealth, INC	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	120 contacts →
	Strong 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 14, 2026
10	ZUS Health	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	87 contacts →
	Strong evidence “Zus is the only shared health data platform designed to accelerate healthcare data interoperability by providing easy-to-use patient data at the point of care via API, embedded…” Source: RevenueBase Database · checked Sep 14, 2026
11	Panalgo	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	71 contacts →
	Partial evidence “Panalgo, a Norstella company, is your partner on the healthcare data analytics journey.” Source: RevenueBase Database · checked Sep 14, 2026
12	Counsel Health	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	44 contacts →
	Indirect evidence “Counsel Health delivers AI-enabled, physician-supervised primary care through a secure messaging-based experience.” Source: RevenueBase Database · checked Sep 14, 2026
13	LYNX	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	42 contacts →
	Strong evidence “Lynx is an API-connected healthcare payments, banking, and e-commerce platform that enables companies to embed customizable health-fintech solutions into their customer experience…” Source: RevenueBase Database · checked Sep 14, 2026
14	Eternalhealth, The Next Generation Of Medicare Advantage	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	39 contacts →
	Indirect evidence “eternalHealth is a sustainable, consumer-centric HMO offering high quality, affordable care to our members.” Source: RevenueBase Database · checked Sep 14, 2026
15	Orbita	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	39 contacts →
	Strong evidence “Orbita’s award-winning, HIPAA-compliant conversational AI platform powers voice and chat solutions for healthcare and life sciences organizations that improve patient engagement…” Source: RevenueBase Database · checked Sep 14, 2026
16	N1 Health	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	38 contacts →
	Strong evidence “N1 Health is the applied AI platform that drives measurable business results for healthcare organizations.” Source: RevenueBase Database · checked Sep 14, 2026
17	Inlightened	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	n/a	31 contacts →
	Strong evidence “Inlightened’s tech-enabled platform connects client companies to a vetted network of healthcare professionals providing on-demand consultation and expertise.” Source: RevenueBase Database · checked Sep 14, 2026
18	Pverify	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	17 contacts →
	Strong evidence “The Leader in Real-time Healthcare APIs for Eligibility, Insurance Discovery, Instant Prior Authorization, Claim Status, & DME Solutions championing the highest level of benefits…” Source: RevenueBase Database · checked Sep 14, 2026
19	Connective Health	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	16 contacts →
	Indirect evidence “The time has come to finally bring data together in a way that can help providers focus on their jobs of treating patients.” Source: RevenueBase Database · checked Sep 14, 2026
20	mayamd.ai	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	15 contacts →
	Strong evidence “MayaMD is a revolutionary AI healthcare company that's created a state of the art patient engagement platform empowering patients and providers.” Source: RevenueBase Database · checked Sep 14, 2026
21	Fhirengine INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	14 contacts →
	Partial evidence “FHIREngine is on a mission to revolutionize healthcare using AI driven, FHIR based suite of products for Decision Support and Prior Authorizations” Source: RevenueBase Database · checked Sep 14, 2026
22	Kaid Health	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “KAID helps providers and payers grow revenue, lower costs, reduce risks and improve outcomes.” Source: RevenueBase Database · checked Sep 14, 2026
23	Calico Care	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	7 contacts →
	Partial evidence “Calico Care helps healthcare teams stay connected to patients between visits.” Source: RevenueBase Database · checked Sep 14, 2026
24	Summit Health Advisors	Strong evidence	Boston, United StatesHQ checked Sep 14, 2026	1-10	7 contacts →
	Strong evidence “Summit Health Advisors is a healthcare consulting firm focused on digital health and innovation, specializing in helping multi-sided platforms succeed and scale.” Source: RevenueBase Database · checked Sep 14, 2026
25	Helios Software	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	6 contacts →
	Indirect evidence “Helios Software is a Boston-based health technology company dedicated to making HL7® FHIR® accessible for health organizations.” Source: RevenueBase Database · checked Sep 14, 2026

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: healthcare api platform 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 healthcare api platform companies.
Partial evidence: Its own public description names part of healthcare api platform companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name healthcare api platform 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 46 healthcare api platform companies based in Boston, United States

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Healthcare api platform companies based in Boston, United States at a glance

As of Sep 14, 2026

51.9%Verified-email coverage

166.9Average contacts per company

11-50Median size (employees)

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 46 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 healthcare api platform 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 Boston, United States whose own description of what they do matches “healthcare api platform 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 healthcare api platform 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 healthcare api platform companies, and records with no verified work email. Companies headquartered outside Boston 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, 3,987 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 14, 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.

Healthcare api platform companies by metro in the United States

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 healthcare api platform 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 healthcare api platform companies are there based in Boston, United States?

RevenueBase identified 46 healthcare api platform companies headquartered in Boston, 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?

ZELIS, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most healthcare api platform companies?

New York leads the United States with 184 headquartered companies, followed by San Francisco (112) and Austin (64). Boston has 46.

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 3,987 verified decision-maker contacts tracked across these 46 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 14, 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.