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Nonprofits in Oklahoma

What the IRS records say about tax-exempt organizations in Oklahoma.

Tax-exempt organizations
22,481
Revenue in a year
$24.3 billion
on 7,030 e-filed returns
Assets
$67.6 billion
Employees
137,667
People paid $1 million or more
49
Typical top pay
$73,200
median, best-paid person per organization

Oklahoma rankings

Tax-exempt organizations
22,481
Of which 501(c)(3)
18,977
File the 990-N (receipts ≤ $50,000)
11,505
File Form 990 or 990-EZ
5,086
Filed a 990-N (latest e-Postcard on record)
15,796
Exemption automatically revoked (all years)
13,654

Largest nonprofits in Oklahoma by revenue

Top 5s in Oklahoma

From each organization's latest e-filed Form 990, 990-EZ or 990-PF.

Highest-paid people

Compensation from the organization and related organizations, including other pay

  1. 1Bank of Oklahoma Na BokCorporate Trustee · J a & Leta M Chapman Charitable TR · TULSA, OK$3.8M
  2. 2Timothy PehrsonDirector & President/CEO · Integris Health Inc · OKLAHOMA, OK$3.1M
  3. 3Cliff a Robertson MDPresident/CEO/Director · Saint Francis Health System Inc · TULSA, OK$2.4M
  4. 4Cliff a Robertson MDPresident/CEO/Director · Warren Clinic Inc · TULSA, OK$2.4M
  5. 5Phillip TateCEO (End: 12/24)/Advisor (End:06/25) · North Oklahoma County Mental Health Center · OKLAHOMA CITY, OK$2.3M
The full top 10 →

Most raised in gifts and grants

Contributions, gifts and grants received in the year

  1. 1George Kaiser Family FoundationTULSA, OK · 990, year ended Dec 2024$435.6M
  2. 2Feed the Children IncOKLAHOMA CITY, OK · 990, year ended Jun 2025$382.6M
  3. 3Tulsa Community FoundationTULSA, OK · 990, year ended Dec 2024$239.1M
  4. 4Oklahoma State University FoundationSTILLWATER, OK · 990, year ended Jun 2025$152.4M
  5. 5University of Oklahoma Foundation IncNORMAN, OK · 990, year ended Jun 2025$151.5M
The full top 10 →

Largest reserves

Net assets (fund balance) at year end

  1. 1George Kaiser Family FoundationTULSA, OK · 990, year ended Dec 2024$4.9B
  2. 2Saint Francis Hospital IncTULSA, OK · 990, year ended Jun 2025$4.1B
  3. 3University of Oklahoma Foundation IncNORMAN, OK · 990, year ended Jun 2025$2.4B
  4. 4Charles and Lynn Schusterman Family FoundationTULSA, OK · 990-PF, year ended Dec 2024$2.2B
  5. 5Oklahoma State University FoundationSTILLWATER, OK · 990, year ended Jun 2025$1.6B
The full top 10 →

Biggest employers

Employees reported for the calendar year

  1. 1Saint Francis Hospital IncTULSA, OK · 990, year ended Jun 20259,515
  2. 2ST John Medical Center IncTULSA, OK · 990, year ended Jun 20254,130
  3. 3Integris Baptist Medical Center IncOKLAHOMA CITY, OK · 990, year ended Jun 20253,240
  4. 4University of TulsaTULSA, OK · 990, year ended Jun 20253,047
  5. 5Grand Lake Mental Health Center IncNOWATA, OK · 990, year ended Jun 20252,744
The full top 10 →

By city

By category

Category (NTEE)Organizations
Education1,868
Religion-related1,408
Human services1,363
Philanthropy, voluntarism and grantmaking foundations1,006
Arts, culture and humanities960
Recreation and sports941
Community improvement and capacity building700
Animal-related466
Food, agriculture and nutrition461
Youth development411
Health care406
Public and societal benefit330
Mental health and crisis intervention297
Housing and shelter249
Public safety, disaster preparedness and relief204
International, foreign affairs and national security170
Crime and legal-related167
Mutual and membership benefit167
Environment163
Employment117
Voluntary health associations and medical disciplines85
Civil rights, social action and advocacy76
Unknown76
Science and technology39
Medical research38
Social science16