Skip to main content
NonprofitTruth
Top 100 by Revenue

Largest US Nonprofits by Revenue (2026)

The 100 largest US nonprofits reported a combined $699.9B in annual revenue on their most recent IRS Form 990 filings. Kaiser Foundation Health Plan Inc tops the list at $75.1B, followed by Kaiser Foundation Hospitals ($32.8B), Mass General Brigham Incorporated And Affiliates Group Rtn ($22.7B), Cleveland Clinic Foundation ($15.6B).

Top 5 Largest, At a Glance

  1. #1Kaiser Foundation Health Plan Inc · Health$75.1B
  2. #2Kaiser Foundation Hospitals · Health$32.8B
  3. #3Mass General Brigham Incorporated And Affiliates Group Rtn · Health$22.7B
  4. #4Cleveland Clinic Foundation · Health$15.6B
  5. #5Mayo Clinic Group Return · Health$14.0B

Full ranked list of the top 100 below. Each row shows annual revenue, total assets, program-expense ratio, and our A–F efficiency grade. All figures pulled from IRS Form 990 filings via ProPublica Nonprofit Explorer.

#OrganizationGrade
1Kaiser Foundation Health Plan Inc
Health
B
2Kaiser Foundation Hospitals
Health
B
3Mass General Brigham Incorporated And Affiliates Group Rtn
Health
A
4Cleveland Clinic Foundation
Health
A
5Mayo Clinic Group Return
Health
A
6Healthfirst Phsp Inc
Health
B
7New York University
Education
A
8Corewell Health
Health
A
9The New York And Presbyterian Hospital
Health
A
10Johns Hopkins University
Education
B
11Trustees Of The University Of Pennsylvania
Education
B
12Dignity Health
Health
B
13Providence Health & Services Washington
Health
B
14Ihc Health Services Inc
Health
A
15Banner Health
Health
A
16Northwestern Memorial Healthcare
Health
A
17Nyu Langone Hospitals
Health
A
18Bon Secours Mercy Health Inc
Health
A
19Caresource Ohio Inc
Health
B
20The Board Of Trustees Of The Leland Stanford Junior University
Education
B
21The Cleveland Clinic Foundation
Health
B
22Memorial Hermann Health System
Health
A
23Hackensack Meridian Health Inc
Health
A
24Memorial Sloan Kettering Cancer Center
Health
A
25Mayo Clinic
Health
B
26Rwj Barnabas Health Inc
Health
A
27Stanford Health Care 227
Health
A
28Vanderbilt University Medical Center
Health
A
29Advocate Health And Hospitals Corporation
Health
A
30Northside Hospital Inc
Health
A
31Bjc Health System
Health
A
32Trustees Of Columbia University
Education
B
33Yale University
Education
B
34Global Fund To Fight Aids Tuberculosis And Malaria
Medical Research
B
35Emory University
Education
B
36Adventist Health System Sunbelt Inc
Health
A
37Ucare Minnesota
Health
B
38President And Fellows Of Harvard College
Education
B
39University Of Miami
Education
A
40Kaiser Foundation Health Plan Of The Mid Atlantic States Inc
Health
A
41Cornell University
Education
B
42Indiana University Health Inc
Health
A
43Inova Health Care Services
Health
A
44Providence Health & Services Oregon
Health
A
45University Of Rochester
Education
A
46Allina Health System
Health
A
47University Hospitals Health System Inc
Health
A
48Sentara Health Plans
Health
B
49Metroplus Health Plan Inc
Health
B
50Sutter Bay Hospitals
Health
A
51University Of Southern California
Education
B
52Kaiser Foundation Health Plan Of The Northwest
Health
B
53Washington University
Education
B
54Ochsner Clinic Foundation
Health
A
55Montefiore Medical Center
Health
A
56Ecmc Group Inc
Education
B
57Massachusetts Institute Of Technology
Education
C
58Scan Health Plan
Health
B
59Fairview Health Services
Health
A
60Duke University Health System Inc
Health
A
61University Of Chicago
Education
B
62Sutter Valley Hospitals
Health
A
63Cedars Sinai Medical Center
Health
B
64Mercy Health
Health
A
65Ohiohealth Corporation Grant Riverside Doctors Dublin Met
Health
A
66Multicare Health System
Health
A
67Henry Ford Health System
Health
A
68Kaiser Foundation Health Plan Of Colorado
Health
A
69Orlando Health Inc
Health
A
70Kaiser Foundation Health Plan Of Washington
Health
A
71Yale New Haven Hospital
Health
A
72Icahn School Of Medicine At Mount Sinai
Education
A
73Long Island Jewish Medical Center
Health
A
74Scripps Health
Health
A
75Boston Medical Center Health Plan Inc
Health
B
76Novant Health Inc
Health
A
77Sentara Hospitals
Health
A
78Mount Sinai Hospital
Health
A
79California Institute Of Technology
Education
A
80Commonspirit Health
Health
A
81Texas Childrens Hospital
Health
A
82Duke University
Education
B
83Umass Memorial Health Care Inc
Health
A
84North Shore University Hospital
Health
A
85Baptist Healthcare System Inc
Health
A
86A Mainehealth Hcsr
Health
A
87Princeton University
Education
C
88Dignity Community Care
Health
A
89Franciscan Alliance Inc
Health
A
90Sutter Bay Medical Foundation
Medical Research
A
91Emory
Education
A
92The Childrens Hospital Of Philadelphia
Health
A
93Osf Healthcare System
Health
A
94Dana Farber Cancer Institute
Medical Research
A
95Health Share Of Oregon
Health
B
96Peacehealth
Health
A
97Lehigh Valley Hospital
Health
A
98The Johns Hopkins Hospital
Health
A
99University Of Pittsburgh
Education
B
100Childrens Hospital Medical Center
Health
B

How the Largest Nonprofits in the US Are Ranked

This list ranks the largest 501(c) tax-exempt organizations in the United States by total annual revenue as reported on each organization’s most recent IRS Form 990. Revenue includes program service revenue, contributions and grants, investment income, and other reported income. Hospital systems and health-insurance nonprofits like Kaiser Permanente dominate the top tier, followed by large universities, private foundations, and national charities.

Size alone is not a quality signal. Being the largest charity in America does not mean the most efficient — our Efficiency Score measures how each organization spends what it raises. See the most efficient nonprofits for the inverse view, or the highest-paid nonprofit CEOs for executive compensation rankings.

Frequently Asked Questions

Kaiser Foundation Health Plan Inc is currently the largest US nonprofit by annual revenue, reporting $75.1B on its most recent IRS Form 990 filing.

Of the top 100 largest US nonprofits in this ranking, 100 report over $1 billion in annual revenue. The cutoff to enter the top 100 is approximately $3.1B.

Size alone does not indicate effectiveness. Our Efficiency Score grades nonprofits on program-spending ratio (50%), revenue-growth consistency (20%), reserve months (20%), and CEO compensation as a share of revenue (10%).

Program percentage is the share of total expenses that goes directly to the nonprofit's charitable programs, versus administration and fundraising. Charity watchdogs typically benchmark a healthy program ratio at 75% or higher.

All figures come from each organization's most recent IRS Form 990 filing, sourced via ProPublica Nonprofit Explorer. Filing data typically lags the tax year by 6–18 months.