Data / Nonprofits / Georgia / Marietta / Environment
Environment nonprofits in Marietta, GA: 19 registered with the IRS
19 environment nonprofits are registered with the IRS in Marietta, GA, 18 of them 501(c)(3) charities; the 5 that report revenue took in $5.9 million. The largest by revenue: Georgia Association of Water Professionals Inc ($4.2 million), Georgia Water and Wastewater Institute Inc ($1.6 million), Master Gardener Volunteers of Cobb County Inc ($177,663).
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Every organization, largest by revenue first
Other causes in Marietta, GA
- Religion-related 297
- Education 240
- Human services 230
- Recreation and sports 126
- Arts, culture and humanities 106
- Philanthropy, voluntarism and grantmaking foundations 99
- Youth development 63
- Health care 59
- Community improvement and capacity building 56
- Housing and shelter 43
- International, foreign affairs and national security 36
- Animal-related 29
- Mental health and crisis intervention 28
- Public and societal benefit 27
- Diseases, disorders and medical disciplines 18
- Crime and legal-related 15
- Food, agriculture and nutrition 15
- Civil rights, social action and advocacy 13
- Mutual and membership benefit 11
- Public safety, disaster preparedness and relief 10
- Employment 8
- Medical research 7
- Social science 4
Every nonprofit in Marietta, GA · 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.