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Nonprofits in Maine

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

Tax-exempt organizations
10,302
Revenue in a year
$22.3 billion
on 4,133 e-filed returns
Assets
$39.8 billion
Employees
137,066
People paid $1 million or more
41
Typical top pay
$80,179
median, best-paid person per organization

Maine rankings

Tax-exempt organizations
10,302
Of which 501(c)(3)
8,127
File the 990-N (receipts ≤ $50,000)
5,456
File Form 990 or 990-EZ
3,245
Filed a 990-N (latest e-Postcard on record)
7,830
Exemption automatically revoked (all years)
5,137

Largest nonprofits in Maine by revenue

Top 5s in Maine

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. 1David A GreenePresident · President & Trustees of Colby College · WATERVILLE, ME$3.2M
  2. 2Lon Cardon PHD FMEDSCIPresident & CEO · Jackson Laboratory · BAR HARBOR, ME$2.7M
  3. 3Andrew Mueller MDCEO and President · Mainehealth · PORTLAND, ME$2.6M
  4. 4K Niles BryantSVP/Chief Investments Officer · Bowdoin College · BRUNSWICK, ME$2.1M
  5. 5Nicolas F ArredondoPhysician · Mercy Hospital · BREWER, ME$1.7M
The full top 10 →

Most raised in gifts and grants

Contributions, gifts and grants received in the year

  1. 1Puffin Bay FoundationBIDDEFORD, ME · 990-PF, year ended Dec 2025$282.5M
  2. 2MainehealthPORTLAND, ME · 990, year ended Sep 2025$138.4M
  3. 3Jackson LaboratoryBAR HARBOR, ME · 990, year ended Dec 2024$119.4M
  4. 4Good Sheperd Food BankAUBURN, ME · 990, year ended Jun 2025$99M
  5. 5Blue Horizons FoundationGORHAM, ME · 990-PF, year ended Dec 2024$92.4M
The full top 10 →

Largest reserves

Net assets (fund balance) at year end

  1. 1Bowdoin CollegeBRUNSWICK, ME · 990, year ended Jun 2025$3.1B
  2. 2MainehealthPORTLAND, ME · 990, year ended Sep 2025$2.9B
  3. 3President & Trustees of Colby CollegeWATERVILLE, ME · 990, year ended Jun 2025$2.1B
  4. 4Jackson LaboratoryBAR HARBOR, ME · 990, year ended Dec 2024$1.1B
  5. 5Harold Alfond FoundationPORTLAND, ME · 990-PF, year ended Dec 2024$1B
The full top 10 →

Biggest employers

Employees reported for the calendar year

  1. 1MainehealthPORTLAND, ME · 990, year ended Sep 202527,768
  2. 2Eastern Maine Healthcare SystemsBREWER, ME · 990, year ended Sep 20254,968
  3. 3Jackson LaboratoryBAR HARBOR, ME · 990, year ended Dec 20243,203
  4. 4University of New EnglandBIDDEFORD, ME · 990, year ended May 20253,178
  5. 5Bowdoin CollegeBRUNSWICK, ME · 990, year ended Jun 20253,087
The full top 10 →

By city

By category

Category (NTEE)Organizations
Education921
Arts, culture and humanities895
Recreation and sports657
Human services548
Philanthropy, voluntarism and grantmaking foundations421
Environment400
Community improvement and capacity building339
Health care281
Animal-related242
Housing and shelter200
Public and societal benefit184
Religion-related171
Food, agriculture and nutrition170
Youth development148
Mutual and membership benefit139
Public safety, disaster preparedness and relief123
Mental health and crisis intervention113
International, foreign affairs and national security85
Voluntary health associations and medical disciplines66
Crime and legal-related55
Employment47
Civil rights, social action and advocacy41
Unknown40
Science and technology35
Medical research18
Social science7