Company lists · Data refreshed September 2026

Top 25 Healthcare api platform companies based in San Francisco, United States

RevenueBase identified 109 healthcare api platform companies headquartered in San Francisco, United States as of September 2026 and tracks 6,414 professional contacts across them, including 1,823 with verified work emails and 2,064 with mobile numbers. Across the United States, New York is the largest hub for this category (174 companies); San Francisco follows with 115.

This list covers healthcare api platform companies headquartered in San Francisco, 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 12, 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 12, 2026 86% judged on-target in blind review
109Companies
6,414Contacts tracked
1,823Verified emails
2,064Mobile numbers
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The 25 largest healthcare api platform companies based in San Francisco, United States

Ranked by team size
Top 25 of 109 healthcare api platform companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 12, 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 20261,001-5,000645 contacts →

Indirect evidence

“Transcarent is the One Place for Health and Care™ that makes it easy for people to access high-quality, affordable health and care.”

Source: RevenueBase Database · checked Sep 12, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 2026201-500388 contacts →

Partial evidence

“Medallion is the only AI-assisted credentialing and enrollment platform with expert oversight, built to deliver speed and accuracy at scale, with contract-backed performance.”

Source: RevenueBase Database · checked Sep 12, 2026
3Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-200380 contacts →

Partial evidence

“Vivian Health is the largest transparent marketplace for healthcare hiring.”

Source: RevenueBase Database · checked Sep 12, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-200286 contacts →

Partial evidence

“Forward is a startup redesigning the way we deliver healthcare using all the technologies healthcare has neglected: sensors, mobile, and AI.”

Source: RevenueBase Database · checked Sep 12, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 2026201-500197 contacts →

Partial evidence

“Healthcare is unreasonably complex and costly.”

Source: RevenueBase Database · checked Sep 12, 2026
6Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-200131 contacts →

Partial evidence

“Incredible Health is the #1 AI-powered healthcare career marketplace, transforming how healthcare employers hire permanent staff.”

Source: RevenueBase Database · checked Sep 12, 2026
7Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 2026201-500123 contacts →

Indirect evidence

“Clarify Health Solutions® unlocks valuable insights making complex care decisions easier for providers, payers, tech and services organizations, and life science companies.”

Source: RevenueBase Database · checked Sep 12, 2026
8Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-200102 contacts →

Indirect evidence

“At Solv, we believe getting access to high quality, last-minute care should be simple, fast and effortless.”

Source: RevenueBase Database · checked Sep 12, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-20089 contacts →

Partial evidence

“CoverSelf empowers payers with a truly NEXT-GEN cloud-native, holistic & customizable platform preventing and adapting to the ever-evolving claims & payment inaccuracies.”

Source: RevenueBase Database · checked Sep 12, 2026
10Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202611-5088 contacts →

Partial evidence

“Hint Health is the practice platform where care and growth run as one.”

Source: RevenueBase Database · checked Sep 12, 2026
11Partial evidenceSan Francisco, United StatesHQ checked Sep 12, 202651-20084 contacts →

Partial evidence

“Health Data Movers (HDM) is a “Best in KLAS” healthcare technology services firm.”

Source: RevenueBase Database · checked Sep 12, 2026
12Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-20075 contacts →

Partial evidence

“About Biome Analytics Biome Analytics helps hospitals and health systems transform cardiovascular care through a technology-driven, human-enabled performance platform.”

Source: RevenueBase Database · checked Sep 12, 2026
13Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-20068 contacts →

Indirect evidence

“Arbital Health provides the Actuarial AI-enabled infrastructure for providers and payers to successfully manage risk-based contracts.”

Source: RevenueBase Database · checked Sep 12, 2026
14Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-20064 contacts →

Partial evidence

“Our mission is to break down barriers that limit people from getting quality healthcare, empowering them to live happier, healthier lives.”

Source: RevenueBase Database · checked Sep 12, 2026
15Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-20057 contacts →

Strong evidence

“EN] Osana is building an API-connected infrastructure for healthcare in LATAM.”

Source: RevenueBase Database · checked Sep 12, 2026
16Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-20051 contacts →

Partial evidence

“TrueCare24.com is a nationwide Health & Wellness platform at Home and at Work.”

Source: RevenueBase Database · checked Sep 12, 2026
17Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202651-20040 contacts →

Partial evidence

“ixlayer is the leading provider of cloud-based platforms empowering greater operational efficiency, patient access, and improved outcomes.”

Source: RevenueBase Database · checked Sep 12, 2026
18Indirect evidenceSan Francisco, United StatesHQ checked Sep 12, 202651-20037 contacts →

Indirect evidence

“Valerie Health is reimagining how independent practices operate by using AI to modernize patient and provider communication interfaces, provide better care, and drive operational…”

Source: RevenueBase Database · checked Sep 12, 2026
19Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202611-5035 contacts →

Strong evidence

“We're a B2B solution providing a 360° health data API and AI-powered automation, working with healthcare companies, digital health startups, PT clinics.”

Source: RevenueBase Database · checked Sep 12, 2026
20Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202611-5031 contacts →

Partial evidence

“Care delivery companies, from 4-person telehealth startups to 40 million-member health plans, leverage Canvas software and APIs to launch new patient experiences and business…”

Source: RevenueBase Database · checked Sep 12, 2026
21Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 20261-1025 contacts →

Partial evidence

“We are on a mission to make healthcare personalized, accessible and easier for all of us as consumers.”

Source: RevenueBase Database · checked Sep 12, 2026
22Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202611-5024 contacts →

Indirect evidence

“Build once.”

Source: RevenueBase Database · checked Sep 12, 2026
23Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202611-5022 contacts →

Strong evidence

“Metriport is an open-source platform that makes it easy for healthcare organizations to access and exchange medical data for their patients.”

Source: RevenueBase Database · checked Sep 12, 2026
24Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202611-5022 contacts →

Partial evidence

“VoiceCare AI is a Healthcare Administration General Intelligence company for the RCM and the back-office.”

Source: RevenueBase Database · checked Sep 12, 2026
25Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 12, 202611-5021 contacts →

Partial evidence

“Apero is an all-in-one API-based practice management company, offering eligibility, medical billing and financial reporting to medical practices.”

Source: RevenueBase Database · checked Sep 12, 2026

Showing 25 of 109 healthcare api platform companies based in San Francisco, United States

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

As of Sep 12, 2026
28.4%Verified-email coverage
32.2%Mobile-number coverage
58.8Average contacts per company
11-50Median size (employees)
Sep 12, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
44
51-200
21
201-500
4
501-1,000
2
1,001-5,000
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

Company record updated

Median 73.0d

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 San Francisco, 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 San Francisco 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, 1,823 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 12, 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 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 San Francisco, United States?

RevenueBase identified 109 healthcare api platform companies headquartered in San Francisco, 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?

Transcarent, headquartered in San Francisco, 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 174 headquartered companies, followed by San Francisco (115) and Los Angeles (64).

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 1,823 verified decision-maker contacts tracked across these 109 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 12, 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.