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Data / Nonprofits / Colorado / Boulder / Environment

Environment nonprofits in Boulder, CO: 69 registered with the IRS

69 environment nonprofits are registered with the IRS in Boulder, CO, 67 of them 501(c)(3) charities; the 35 that report revenue took in $104.2 million. The largest by revenue: Global Greengrants Fund Inc ($35 million), Eco-Cycle Inc ($11 million), Outward Bound Inc ($9.8 million).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Global Greengrants Fund Inc501(c)(3)2002$35 million$54.1 million2025-06
Eco-Cycle Inc501(c)(3)1978$11 million$8.7 million2025-06
Outward Bound Inc501(c)(3)1964$9.8 million$15.8 million2024-12
Greenlatinos501(c)(3)2009$8.7 million$3.2 million2024-12
Protect Our Winters501(c)(3)2007$6.7 million$7.3 million2024-12
River Network501(c)(3)1992$6.1 million$3.5 million2025-09
Resource Central501(c)(3)1980$5.5 million$5.8 million2025-12
Southwest Energy Efficiency Project LLC501(c)(3)2003$3.1 million$3.2 million2025-12
Leave No Trace Center for Outdoor Ethics501(c)(3)1995$2.7 million$2.2 million2025-12
Savory Institute Org Inc501(c)(3)2013$2.6 million$7.1 million2024-12
Growing Gardens501(c)(3)1999$2.5 million$2.8 million2025-12
Institute for Social and Environmental Transition-Intl501(c)(3)1997$1.3 million$1.6 million2025-06
Boulder Carshare501(c)(3)2006$1.2 million$846,6072025-12
350 Colorado501(c)(3)2014$1.1 million$760,1732025-12
Boulder Watershed Collective501(c)(3)2021$975,650$1.6 million2024-12
American Solar Energy Society Inc501(c)(3)1980$743,911$362,7442025-12
Art Parts Creative Reuse Center501(c)(3)2014$650,375$203,3802025-12
Common Foundation501(c)(3)2011$631,629$82,2612024-12
Council for the New Energy Economics501(c)(3)2020$617,500$429,5612024-12
Kiva Center501(c)(3)2017$482,275$221,5492025-12
Climate Justice Hive501(c)(3)2024$433,081$175,6612025-12
Boulder Climbing Community501(c)(3)2012$421,952$124,2562024-12
Sycamore Foundation501(c)(3)2019$372,101$364,3372024-12
Earth Guardians Inc501(c)(3)1999$332,375$166,7402024-12
Harvest of All First Nations501(c)(3)2022$311,307$54,8722024-12
Land Use Resource Center501(c)(3)1993$291,332$1.6 million2024-12
Boulder Open Space Conservancy501(c)(3)2017$186,389$165,9842025-12
Regenerative Earth501(c)(3)2016$161,889$151,8952024-12
Save the Poudre - Poudre Watekeeper501(c)(3)2010$90,609$66,0672024-12
Living With Harmony Inc501(c)(3)2014$82,617$507,4342025-12
Save the Worlds Rivers501(c)(3)2015$60,017$20,5602024-12
Clean Energy Action501(c)(3)2010$52,186$42,6452025-12
Green Up Our Schools501(c)(3)2011$14,995$8,6702024-12
350 Colorado Action501(c)(4)2020$11,189$83,2852024-12
The Action Committee for Eldorado501(c)(3)1993$6,891$7,0022024-12
1000 Gretas Foundation501(c)(3)2021$0$02024-12
Abundant Clean Water and Energy for All501(c)(3)2024
Acorn Nonprofit Capacity Building501(c)(3)2025$0$02025-12
Altai Institute for Research and Conservation Inc501(c)(3)2018$0$02025-12
Blue Verve Project Inc501(c)(3)2021$0$02025-12
Boulder Area Trails Coalition501(c)(3)2007$0$02025-12
Boulder County Nature Association501(c)(3)1982$0$02025-12
Boulder Green Building Foundation501(c)(3)2006$0$02024-12
Buko Garden501(c)(3)2025
Citizens for Clean Energy Inc501(c)(3)1995$0$02025-12
Community Fruit Rescue501(c)(3)2019$0$02025-12
Friends of European Hunting and Conservation501(c)(3)2024
Front Range Nesting Bald Eagle Studies501(c)(3)2018$8,8332025-01
Green Shovel Project501(c)(3)2026
Hearts of Peace Foundation501(c)(3)2002$3442024-12
Kdad Black Hills Ce501(c)(3)2018$155,3622024-12
Luscious Lands Foundation501(c)(3)2021$0$02025-12
Marine Ventures Foundation Inc501(c)(3)2001$147,1952024-12
One Forest Foundation501(c)(3)2025
Our Sacred Earth501(c)(3)2006$0$02025-12
Outside Community Foundation501(c)(3)2025
Plan Boulder County Inc501(c)(4)2019$0$02025-12
Plantgo501(c)(3)2024
RTC Impact Fund501(c)(3)2014$0$02025-12
Sacred Contract501(c)(3)2025$0$02025-12
Shameless Self-Promotion Productions Inc501(c)(3)2021$0$02024-12
Sibinacocha Watershed Project501(c)(3)2015$0$02024-12
Society of Black Solar Professionals501(c)(3)2021$0$02023-12
Stranded Gas Processors Association501(c)(3)2023$1142023-12
Sustainable Alliances Inc501(c)(3)2006$0$02025-12
Synergy Ecological Restoration Inc501(c)(3)2016$0$02024-12
Trailfunds501(c)(3)2024
Twin Lakes Action Group Inc501(c)(3)2015$0$02025-12
Urgent Climate Action Now501(c)(3)2026

Other causes in Boulder, CO

Every nonprofit in Boulder, CO · 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.