Data / Nonprofits / Minnesota / Duluth / Environment
Environment nonprofits in Duluth, MN: 21 registered with the IRS
21 environment nonprofits are registered with the IRS in Duluth, MN, 20 of them 501(c)(3) charities; the 9 that report revenue took in $10.9 million. The largest by revenue: Lake Superior Center ($4.3 million), Ecolibrium3 ($2.8 million), Hartley Nature Center ($1.6 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Lake Superior Center | 501(c)(3) | 1989 | $4.3 million | $2.4 million | 2025-12 |
| Ecolibrium3 | 501(c)(3) | 2011 | $2.8 million | $2.6 million | 2025-09 |
| Hartley Nature Center | 501(c)(3) | 1987 | $1.6 million | $2.8 million | 2025-08 |
| Sugarloaf the North Shore Stewardship Association | 501(c)(3) | 1993 | $1.3 million | $3 million | 2024-12 |
| St Louis River Alliance | 501(c)(3) | 1996 | $405,758 | $122,374 | 2025-12 |
| Waterlegacy | 501(c)(3) | 2009 | $260,595 | $990,404 | 2025-09 |
| Cyclists of the Gitchee Gumee Shores Inc | 501(c)(3) | 2010 | $141,113 | $326,871 | 2024-12 |
| Minnesota Point Preservation Society Inc | 501(c)(3) | 2011 | $75,166 | $24,262 | 2025-12 |
| Duluth Plant-A-Lot Community Garden Program | 501(c)(3) | 1984 | $66,865 | $22,465 | 2024-12 |
| Arrowhead Native Plant Explorers | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Deer Tail Scientific | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Duluth Superior Eco Rotary Club Inc | 501(c)(4) | 2023 | $0 | $0 | 2026-06 |
| Friends of the Lakewalk | 501(c)(3) | 2015 | $0 | $0 | 2026-07 |
| Institute for A Sustainable Future | 501(c)(3) | 1999 | $0 | $0 | 2024-12 |
| Lake Superior Water Trail Association of Minnesota | 501(c)(3) | 1996 | $0 | $0 | 2025-12 |
| Northeastern Minnesota Bird Alliance Inc | 501(c)(3) | 1972 | $0 | $0 | 2025-06 |
| Rajala Woods Foundation | 501(c)(3) | 2017 | $3 million | 2024-12 | |
| Save Our Sky Blue Waters | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Schultz Lake Property Owners Association | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Solar Commons | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Sweetwater Alliance Inc | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
Other causes in Duluth, MN
- Recreation and sports 77
- Education 66
- Arts, culture and humanities 59
- Human services 53
- Religion-related 33
- Community improvement and capacity building 32
- Health care 29
- Philanthropy, voluntarism and grantmaking foundations 20
- Youth development 18
- Employment 17
- Animal-related 14
- Housing and shelter 14
- Mental health and crisis intervention 13
- Public and societal benefit 8
- Crime and legal-related 6
- Mutual and membership benefit 6
- Public safety, disaster preparedness and relief 6
- International, foreign affairs and national security 5
- Diseases, disorders and medical disciplines 5
- Civil rights, social action and advocacy 5
- Medical research 4
- Food, agriculture and nutrition 3
Every nonprofit in Duluth, MN · Environment nonprofits across the state · Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.