Company lists · Data refreshed September 2026

Top 25 Charitable care providers based in the United States

RevenueBase identified 1,959 charitable care providers headquartered in the United States as of September 2026 and tracks 98,898 professional contacts across them, including 32,078 with verified work emails. Los Angeles is the largest hub.

This list covers charitable care providers 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 19, 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 19, 2026 86% judged on-target in blind review
1,959Companies
98,898Contacts tracked
32,078Verified emails
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The 25 largest charitable care providers based in the United States

Ranked by team size
Top 25 of 1,959 charitable care providers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to charitable care providers: 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 evidenceLos Angeles, CA, United StatesHQ checked Sep 19, 20265,001-10,0002,510 contacts →

Indirect evidence

“AltaMed is one of the nation’s largest community health networks.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceMiami Gardens, FL, United StatesHQ checked Sep 19, 20261,001-5,0002,322 contacts →

Indirect evidence

“We’re on a mission.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceMiddletown, CT, United StatesHQ checked Sep 19, 2026501-1,0001,754 contacts →

Indirect evidence

“Community Health Center, Inc.(CHC).”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceSan Diego, CA, United StatesHQ checked Sep 19, 20261,001-5,0001,378 contacts →

Partial evidence

“Since 1970, FHCSD’s mission has been to provide caring, affordable, high-quality health care and supportive services to everyone, with a special commitment to uninsured…”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceFremont, CA, United StatesHQ checked Sep 19, 20261,001-5,0001,258 contacts →

Partial evidence

“Washington Health is fostering healthier communities and access to health care services including academic level care, close to home.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceSan Diego, CA, United StatesHQ checked Sep 19, 20261,001-5,0001,147 contacts →

Partial evidence

“San Ysidro Health is a non-profit organization fully committed to providing the highest quality, most compassionate, easily accessible and affordable health care services for the…”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceSeattle, WA, United StatesHQ checked Sep 19, 20261,001-5,0001,071 contacts →

Indirect evidence

“Sea Mar Community Health Centers is a community-based organization committed to providing quality, comprehensive health, human, housing, educational and cultural services to…”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceMiami, FL, United StatesHQ checked Sep 19, 20261,001-5,000974 contacts →

Partial evidence

“We’re transforming primary health care by improving the health of our patients.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceSioux City, IA, United StatesHQ checked Sep 19, 20261,001-5,000954 contacts →

Indirect evidence

“Connecting with your community is important, and we’re excited you want to get to know us better!”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceBakersfield, CA, United StatesHQ checked Sep 19, 20261,001-5,000869 contacts →

Partial evidence

“Clinica Sierra Vista, a non-profit corporation, was created to provide health care to poor, migrant farmworkers who harvest the lush agricultural fields in the southern San…”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceTucson, AZ, United StatesHQ checked Sep 19, 20261,001-5,000843 contacts →

Partial evidence

“Our Mission is to improve the health of our community through comprehensive, accessible, affordable, quality and compassionate care.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 19, 20261,001-5,000830 contacts →

Partial evidence

“The mission of the Institute for Family Health is to improve access to high quality, patient-centered primary health care targeted to the needs of medically underserved…”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceOakland, CA, United StatesHQ checked Sep 19, 20261,001-5,000766 contacts →

Partial evidence

“Who We Are Since its beginnings as a single storefront operation in Oakland in 1971, La Clínica has grown into a sophisticated provider of primary health care and other services…”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceRenton, WA, United StatesHQ checked Sep 19, 2026501-1,000707 contacts →

Partial evidence

“HealthPoint is a community-based, community-supported and community-governed network of non-profit health centers dedicated to providing expert, high-quality care to all who need…”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 19, 20261,001-5,000689 contacts →

Partial evidence

“MLK Community Healthcare (MLKCH) is an award-winning health system that provides quality care to the medically-underserved community of South Los Angeles.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 2026501-1,000657 contacts →

Indirect evidence

“Community Healthcare Network is a not-for-profit organization providing more than New Yorkers with primary and behavioral healthcare, dental, nutrition, wellness, and needed…”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceSpokane, WA, United StatesHQ checked Sep 19, 20261,001-5,000653 contacts →

Indirect evidence

“The mission of CHAS Health is to improve the overall health of the communities we serve by expanding access to quality health and wellness services.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceWashington, DC, United StatesHQ checked Sep 19, 20261,001-5,000653 contacts →

Partial evidence

“Unity Health Care reaches people wherever they are to provide compassionate, comprehensive, high-quality health care that is accessible to all and advances health equity in…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceEscondido, CA, United StatesHQ checked Sep 19, 20261,001-5,000636 contacts →

Indirect evidence

“Community health is about more than just vaccines and checkups.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceAugusta, AR, United StatesHQ checked Sep 19, 20261,001-5,000621 contacts →

Indirect evidence

“With a focus on customer health, community health, employee health, and organizational health, our mission of “health for all” is at the core of everything we do.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceBronx, NY, United StatesHQ checked Sep 19, 2026501-1,000580 contacts →

Indirect evidence

“Urban Health Plan (UHP) is a network of federally qualified community health centers based in the South Bronx, Central Harlem and Corona, Queens and has been serving the community…”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceChicago, IL, United StatesHQ checked Sep 19, 2026501-1,000564 contacts →

Partial evidence

“Motivated by the belief that healthcare is a human right, we provide high quality, affordable care to support healthier people, families and communities.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceAustin, TX, United StatesHQ checked Sep 19, 20261,001-5,000549 contacts →

Partial evidence

“CommUnityCare Health Centers is a not-for-profit 501(c)(3) corporation providing primary care health services to the medically underserved.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceOlympia Fields, IL, United StatesHQ checked Sep 19, 2026501-1,000545 contacts →

Indirect evidence

“Aunt Martha’s is a family of more than 550 staff and volunteers.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidencePhoenix, AZ, United StatesHQ checked Sep 19, 2026501-1,000518 contacts →

Partial evidence

“Adelante Healthcare operates nine community health centers throughout Central Arizona which provide primary and preventative health care to more than people each year.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 1,959 charitable care providers based in the United States

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Charitable care providers based in the United States at a glance

As of Sep 19, 2026
32.4%Verified-email coverage
50.5Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · Los Angeles
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
683
11-50
542
51-200
375
201-500
226
501-1,000
81
1,001-5,000
37
5,001-10,000
1
10001+
2

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 1,959 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 charitable care providers, 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 “charitable care providers”. 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 charitable care providers), 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 charitable care providers, 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, 32,078 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 19, 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 charitable care providers, 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 charitable care providers are there based in the United States?

RevenueBase identified 1,959 charitable care providers 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?

Altamed Health Services, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most charitable care providers?

Los Angeles leads with 41 headquartered companies, followed by Miami (28) and New York (28).

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 32,078 verified decision-maker contacts tracked across these 1,959 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 19, 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.