Company lists · Data refreshed September 2026
Top 25 Chronic illness nonprofits based in the United States
RevenueBase identified 234 chronic illness nonprofits headquartered in the United States as of September 2026 and tracks 4,956 professional contacts across them, including 1,595 with verified work emails. New York is the largest hub.
This list covers chronic illness nonprofits 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.
The 25 largest chronic illness nonprofits based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,120 contacts → | ||||
Indirect evidence “Empath Health is uniquely devoted to pioneering all-embracing care that provides for the full life.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 772 contacts → | ||||
Indirect evidence “Hadassah is and always has been lifechanging.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 373 contacts → | ||||
Indirect evidence “Founded in 1938 as Jewish Vocational Services, CFI began helping immigrants settle in Milwaukee.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 171 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 149 contacts → | ||||
Strong evidence “Parents Helping Parents believes that youth and adults with disabilities, chronic illness, mental health conditions, and other challenges, deserve a life of possibilities and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 144 contacts → | ||||
Partial evidence “Mission: FCA supports and sustains the essential work of families nationwide who are caring for loved ones with chronic disabling health conditions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 142 contacts → | ||||
Indirect evidence “Center for Community Resources (CCR) makes a positive difference in everyday lives by connecting people to a network of supports and services essential for actively learning…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 134 contacts → | ||||
Partial evidence “At AOTI, we are helping all people with chronic conditions get back to living their lives to the fullest.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 103 contacts → | ||||
Strong evidence “Established in 1996, Patient Advocate Foundation has been breaking down healthcare barriers for patients diagnosed with chronic, life threatening and/or debilitating illnesses by…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 95 contacts → | ||||
Partial evidence “For over 60 years, Conard House has provided effective, community-based resources for San Francisco's vulnerable adults living with serious mental illness.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 79 contacts → | ||||
Indirect evidence “Our mission is to provide adults and their caregivers the tools and services they need to effectively navigate their health and life options.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 76 contacts → | ||||
Indirect evidence “Established in 1991, RIPIN helps thousands of Rhode Islanders every year turn challenging situations into opportunities to advocate for themselves and their loved ones.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 57 contacts → | ||||
Indirect evidence “Heal One World was formed to help connect people in need of preventative health care, non-traditional/complementary modalities, natural non-invasive treatments and guidance…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 56 contacts → | ||||
Indirect evidence “Founded in 1984 by a small group of concerned citizens as “Friends Who Care”, the Southern Tier AIDS Program began with three staff, donated office space and a desire to ease the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 50 contacts → | ||||
Indirect evidence “Steppingstone Incorporated’s mission is to strengthen quality of life among individuals and families of our community through providing comprehensive client-center programs and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 49 contacts → | ||||
Partial evidence “Successful Living is a non-profit organization serving persons 18 years and older who are chronically mentally ill.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 46 contacts → | ||||
Strong evidence “Accessia Health is a national nonprofit 501(c)(3) organization that provides programs and services to those living with rare or chronic health conditions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 45 contacts → | ||||
Indirect evidence “The mission of The Arc of the Quad Cities Area is to empower people with disabilities to believe in their own unique abilities and achieve their full potential by providing…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 41 contacts → | ||||
Indirect evidence “Through dedication, understanding, and nurturing, La Familia strives to provide genuine care and guidance to individuals with any mental health and/or developmental condition."” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 39 contacts → | ||||
Indirect evidence “Good Days is a national, independent 501(c)(3) non-profit charitable organization that provides financial assistance to patients so that they do not have to choose between access…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 36 contacts → | ||||
Indirect evidence “HVCS’ mission is to promote prevention and wellness for all people, to encourage life-affirming decisions maximizing their quality of life, and to coordinate care for those living…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Partial evidence “Mental Health Advocates of WNY (MHAWNY) promotes mental health and wellness and supports individuals and families challenged by mental illness.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Partial evidence “The Mental Health Association of Orange County is dedicated to improving the quality of life of Orange County residents impacted by mental illness through direct service…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 33 contacts → | ||||
Indirect evidence “We are dedicated to affirming human worth, rights, and dignity by providing services to people with disabilities which enhance the quality of their lives, and enable them to live…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 31 contacts → | ||||
Strong evidence “Lori's Hands builds mutually beneficial partnerships between community members with chronic illness and college students, fostering empathy, connection, and resilience.” Source: RevenueBase Database · checked Sep 19, 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: chronic illness nonprofits. 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 chronic illness nonprofits.
- Partial evidence
- Its own public description names part of chronic illness nonprofits, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name chronic illness nonprofits. 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 234 chronic illness nonprofits based in the United States
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Chronic illness nonprofits based in the United States at a glance
As of Sep 19, 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 234 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 chronic illness nonprofits, 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 “chronic illness nonprofits”. 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 chronic illness nonprofits), 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 chronic illness nonprofits, 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, 1,595 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 chronic illness nonprofits, 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 chronic illness nonprofits are there based in the United States?
RevenueBase identified 234 chronic illness nonprofits 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?
Empath Health, headquartered in Clearwater, tops this list with the largest team on record.
Which city has the most chronic illness nonprofits?
New York leads with 5 headquartered companies, followed by Los Angeles (4) and San Francisco (4).
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 1,595 verified decision-maker contacts tracked across these 234 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.
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