Data / Nonprofits / Ohio / Cincinnati / Environment
Environment nonprofits in Cincinnati, OH: 64 registered with the IRS
64 environment nonprofits are registered with the IRS in Cincinnati, OH, 62 of them 501(c)(3) charities; the 22 that report revenue took in $13.7 million. The largest by revenue: Great Parks Forever ($3.5 million), Keep Cincinnati Beautiful Inc ($2.4 million), Green Umbrella ($1.8 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|
| Great Parks Forever | 501(c)(3) | 2008 | $3.5 million | $26.2 million | 2025-12 |
| Keep Cincinnati Beautiful Inc | 501(c)(3) | 1979 | $2.4 million | $3.5 million | 2025-06 |
| Green Umbrella | 501(c)(3) | 2002 | $1.8 million | $534,240 | 2024-12 |
| Gorman Heritage Farm Foundation | 501(c)(3) | 2004 | $1.2 million | $2.9 million | 2024-12 |
| Civic Garden Center of Greater Cincinnati | 501(c)(3) | 1950 | $795,372 | $1.4 million | 2025-12 |
| Cincinnati Recycling and Reuse Hub | 501(c)(3) | 2020 | $631,952 | $299,104 | 2024-12 |
| Reuse Centers | 501(c)(3) | 2025 | $596,427 | $208,585 | 2025-12 |
| Western Wildlife Corridor Inc | 501(c)(3) | 1993 | $551,530 | $3.3 million | 2024-12 |
| Hillside Trust | 501(c)(3) | 1980 | $425,019 | $11.2 million | 2024-12 |
| Imago | 501(c)(3) | 1984 | $369,520 | $477,012 | 2024-12 |
| Friends of Liberia Food and Water | 501(c)(3) | 2025 | $294,801 | $33,826 | 2025-12 |
| The Ohio River Way Inc | 501(c)(3) | 2003 | $258,730 | $228,220 | 2025-12 |
| Foundation for Ohio River Education | 501(c)(3) | 2004 | $173,463 | $221,268 | 2025-06 |
| International Environmental Communication Association | 501(c)(3) | 2012 | $164,925 | $88,030 | 2025-12 |
| Nigerian Association of Pharmacists and Pharmaceutical Scientists in | 501(c)(3) | 2007 | $148,749 | $85,540 | 2025-12 |
| Stanley F Herman Charitable Trust Fbo Kalamazoo Nature Center 5-15-85 | 501(c)(3) | 1991 | $115,679 | $1.3 million | 2025-07 |
| Taking Root Inc | 501(c)(3) | 2016 | $82,680 | $91,086 | 2025-12 |
| Cincinnati Permaculture Institute | 501(c)(3) | 2014 | $48,316 | $47,607 | 2025-12 |
| Izaak Walton League of America Inc | 501(c)(3) | 1985 | $27,435 | $62,912 | 2025-12 |
| Just Earth - Cincinnati Inc | 501(c)(3) | 2022 | $24,960 | $41,574 | 2025-12 |
| Trees & Trails Foundation | 501(c)(3) | 2023 | $4,953 | $1 | 2025-12 |
| Westwood Grows | 501(c)(3) | 2022 | $500 | $19 | 2025-12 |
| Adams County Nature Society Inc | 501(c)(3) | 2025 | | | |
| Alms Park Advisory Council | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Audubon Society of Ohio | 501(c)(3) | 1952 | $0 | $0 | 2025-06 |
| Blue Ash Park and Recreation Foundation Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Buckeye United Fly Fishers Inc | 501(c)(3) | 1996 | $0 | $0 | 2025-12 |
| Center for Indoor Air Quality and H Uman Health | 501(c)(3) | 2026 | | | |
| Cincinnati Dahlia Society | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Cincinnati Horticultural Society | 501(c)(3) | 1990 | $0 | $0 | 2024-12 |
| Cincinnati Town and Country Garden Club | 501(c)(3) | 1967 | $0 | $0 | 2026-06 |
| Community Catalyst | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Confluence Water Technology Innovation Cluster Inc | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Eco Environmental Community Organization | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Friends of the Asa Wright Nature Centre Inc | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Friends of the Great Miami | 501(c)(3) | 1999 | $0 | $688 | 2024-12 |
| Greater Cincinnati Earth Coalition | 501(c)(3) | 1999 | $0 | $0 | 2025-09 |
| Greenacres Foundation | 501(c)(3) | 1988 | | $411.9 million | 2025-12 |
| Hosta Society of Greater Cincinnati | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Indian Hill Pure Water Project | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Mid-America Orchid Congress Inc | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Mt Auburn Garden Initiative | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| National Association of C-Pace Prog Ram Administrators | 501(c)(6) | 2026 | | | |
| Native Orchid Preservation and Education Society | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Northside Greenspace Incorporated | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Ohio Hunter and Trapper Educationinstructors Association | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Preserve Scarborough Woods Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Price Hill Land Foundation | 501(c)(3) | 1992 | $0 | $0 | 2024-12 |
| Property Owners Want Equal Rights | 501(c)(3) | 2008 | $0 | $0 | 2023-12 |
| Reef Expeditions | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Sidestreams Foundation Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Sowing Communities Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Spring in Our Steps | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Sustainability Central | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Sustainable Mariemont Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Terradise Nature Center | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| The Barry and Patricia Wakeman Educational Foundation Inc | 501(c)(3) | 2010 | | $24,535 | 2025-12 |
| The Mitsui Ranch Preserve Inc | 501(c)(3) | 2012 | | $466,377 | 2024-12 |
| The Village Green Foundation Inc | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Turner Farm Preservation Foundation Inc | 501(c)(3) | 2013 | | $13.8 million | 2024-12 |
| Village Gardeners of Glendale | 501(c)(4) | 2006 | $0 | $0 | 2025-07 |
| Walker Street Conservancy | 501(c)(3) | 2022 | | $151,341 | 2025-12 |
| Water Prosper Inc | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| We Outside Foundation | 501(c)(3) | 2025 | | | |
Other causes in Cincinnati, OH
Every nonprofit in Cincinnati, OH · 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.