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Top 100 by Revenue

Biggest Nonprofits in the US 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.

#OrganizationOfficer PayGrade
1Kaiser Foundation Health Plan Inc
Health
$90.8MA
2Kaiser Foundation Hospitals
Health
B
3Mass General Brigham Incorporated And Affiliates Group Rtn
Health
$105.2MA
4Cleveland Clinic Foundation
Health
$80.3MB
5Mayo Clinic Group Return
Health
$102.9MB
6Healthfirst Phsp Inc
Health
B
7New York University
Education
$20.5MA
8Corewell Health
Health
B
9The New York And Presbyterian Hospital
Health
$57.4MA
10Johns Hopkins University
Education
$30.9MB
11Trustees Of The University Of Pennsylvania
Education
$53.2MC
12Dignity Health
Health
$82.1MB
13Providence Health & Services Washington
Health
$52.2MB
14Ihc Health Services Inc
Health
$44.5MB
15Banner Health
Health
$44.1MB
16Northwestern Memorial Healthcare
Health
$20.3MA
17Nyu Langone Hospitals
Health
$41.9MA
18Bon Secours Mercy Health Inc
Health
$35.9MB
19Caresource Ohio Inc
Health
B
20The Board Of Trustees Of The Leland Stanford Junior University
Education
$13.3MC
21The Cleveland Clinic Foundation
Health
$25.4MB
22Memorial Hermann Health System
Health
$8.2MA
23Hackensack Meridian Health Inc
Health
$39.4MA
24Memorial Sloan Kettering Cancer Center
Health
$51.0MB
25Mayo Clinic
Health
$21.1MC
26Rwj Barnabas Health Inc
Health
$20.1MA
27Stanford Health Care 227
Health
$13.6MB
28Vanderbilt University Medical Center
Health
$24.6MA
29Advocate Health And Hospitals Corporation
Health
$5.4MB
30Northside Hospital Inc
Health
$11.2MA
31Bjc Health System
Health
$12.1MA
32Trustees Of Columbia University
Education
$17.2MC
33Yale University
Education
$12.9MC
34Global Fund To Fight Aids Tuberculosis And Malaria
Medical Research
$9.2MB
35Emory University
Education
$38.3MC
36Adventist Health System Sunbelt Inc
Health
$16.0MA
37Ucare Minnesota
Health
$168KA
38President And Fellows Of Harvard College
Education
$14.7MC
39University Of Miami
Education
$11.7MA
40Kaiser Foundation Health Plan Of The Mid Atlantic States Inc
Health
$14KA
41Cornell University
Education
$17.4MC
42Indiana University Health Inc
Health
$13.3MB
43Inova Health Care Services
Health
$22.0MA
44Providence Health & Services Oregon
Health
A
45University Of Rochester
Education
$17.1MB
46Allina Health System
Health
$22.8MB
47University Hospitals Health System Inc
Health
$18.2MA
48Sentara Health Plans
Health
$3.4MA
49Metroplus Health Plan Inc
Health
$5.4MA
50Sutter Bay Hospitals
Health
$474KB
51University Of Southern California
Education
$27.8MC
52Kaiser Foundation Health Plan Of The Northwest
Health
$280KB
53Washington University
Education
$24.3MC
54Ochsner Clinic Foundation
Health
$40.1MA
55Montefiore Medical Center
Health
B
56Ecmc Group Inc
Education
$5.2MC
57Massachusetts Institute Of Technology
Education
$13.5MC
58Scan Health Plan
Health
$12.6MB
59Fairview Health Services
Health
$19.5MB
60Duke University Health System Inc
Health
$11.6MB
61University Of Chicago
Education
$21.1MC
62Sutter Valley Hospitals
Health
$30KA
63Cedars Sinai Medical Center
Health
$21.3MB
64Mercy Health
Health
$23.1MA
65Ohiohealth Corporation Grant Riverside Doctors Dublin Met
Health
$18.1MB
66Multicare Health System
Health
$11.7MA
67Henry Ford Health System
Health
$21.0MA
68Kaiser Foundation Health Plan Of Colorado
Health
B
69Orlando Health Inc
Health
$14.7MA
70Kaiser Foundation Health Plan Of Washington
Health
$203KB
71Yale New Haven Hospital
Health
$10.6MA
72Icahn School Of Medicine At Mount Sinai
Education
$11.4MA
73Long Island Jewish Medical Center
Health
$908KA
74Scripps Health
Health
$24.1MA
75Boston Medical Center Health Plan Inc
Health
$5.4MB
76Novant Health Inc
Health
$28.8MB
77Sentara Hospitals
Health
$12.1MA
78Mount Sinai Hospital
Health
$12.1MA
79California Institute Of Technology
Education
$12.9MB
80Commonspirit Health
Health
$28.4MB
81Texas Childrens Hospital
Health
$51.4MA
82Duke University
Education
$23.7MC
83Umass Memorial Health Care Inc
Health
$21.2MA
84North Shore University Hospital
Health
$1.1MA
85Baptist Healthcare System Inc
Health
$5.1MB
86A Mainehealth Hcsr
Health
$6.7MA
87Princeton University
Education
$20.4MC
88Dignity Community Care
Health
B
89Franciscan Alliance Inc
Health
$6.9MB
90Sutter Bay Medical Foundation
Medical Research
$719KB
91Emory
Education
$31.1MC
92The Childrens Hospital Of Philadelphia
Health
$17.6MA
93Osf Healthcare System
Health
$17.7MB
94Dana Farber Cancer Institute
Medical Research
$9.8MA
95Health Share Of Oregon
Health
C
96Peacehealth
Health
$19.4MB
97Lehigh Valley Hospital
Health
$10.6MA
98The Johns Hopkins Hospital
Health
$218KB
99University Of Pittsburgh
Education
$7.3MC
100Childrens Hospital Medical Center
Health
$11.9MB

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 financial health / operating reserves (40%), revenue-growth consistency (35%), and current-officer compensation as a share of revenue (25%) — all from IRS Form 990 data.

Officer Pay is the total compensation reported for current officers, directors, trustees, and key employees on IRS Form 990 Part IX, line 5. It is an aggregate across all listed officers, not a single executive's salary, and shows as a dash when the organization does not report it on its most recent 990.

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.