Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Clear the Air FoundationDenver | Form 990 | $513,946FY2024 |
| Greater Arkansas River Nature AssociationSalida | Form 990 | $494,537FY2025 |
| New Earth CollaborativeAurora | Form 990 | $490,328FY2025 |
| Conejos County Clean Water IncAntonito | Form 990 | $487,820FY2025 |
| Social BridgeGlenwood Springs | Form 990 | $482,665FY2024 |
| Kiva CenterBoulder | Form 990 | $482,275FY2025 |
| Sangre de Cristo National Heritage AreaAlamosa | Form 990 | $481,050FY2025 |
| Arkansas River Watershed CollaborativeWestcliffe | Form 990 | $467,784FY2024 |
| Triple Bottom Line FoundationDenver | Form 990 | $449,514FY2025 |
| Western Mining Action ProjectLyons | Form 990 | $446,238FY2025 |
| La Plata Open Space ConservancyDurango | Form 990 | $444,154FY2024 |
| Dolores River Boating AdvocatesDolores | Form 990 | $434,872FY2024 |
| Climate Justice HiveBoulder | Form 990 | $433,081FY2025 |
| 5 Point Film FestivalCarbondale | Form 990 | $426,063FY2025 |
| Boulder Climbing CommunityBoulder | Form 990 | $421,952FY2024 |
| Partners for Conservation IncOrdway | Form 990 | $416,112FY2025 |
| Clean Valley RecyclingLa Junta | Form 990 | $414,137FY2024 |
| Coldharbour InstituteGunnison | Form 990 | $399,222FY2025 |
| Jeffco Open Space Foundation IncGolden | Form 990 | $394,875FY2025 |
| National Wilderness Stewardship AllianceFort Collins | Form 990 | $393,867FY2025 |
| Learning by Doing IncHot Sulphur Springs | Form 990 | $384,154FY2024 |
| Earth Restoration AllianceCarbondale | Form 990 | $381,682FY2025 |
| Sycamore FoundationBoulder | Form 990 | $372,101FY2024 |
| Environmental and Engineering Geophysical SocietyDenver | Form 990 | $370,761FY2025 |
| Salida Mountain TrailsSalida | Form 990 | $367,393FY2025 |
| Gunnison TrailsGunnison | Form 990 | $364,026FY2024 |
| Colorado Association for Recycling IncLongmont | Form 990 | $357,906FY2025 |
| Poudre Learning Center Foundation IncGreeley | Form 990 | $336,010FY2025 |
| People and Pollinators Action NetworkNiwot | Form 990 | $335,387FY2025 |
| Earth Guardians IncBoulder | Form 990 | $332,375FY2024 |
| ShadowcliffGrand Lake | Form 990 | $316,286FY2025 |
| Harvest of All First NationsBoulder | Form 990 | $311,307FY2024 |
| Blue ElementsCanon City | Form 990 | $307,789FY2025 |
| Nourish International USARocky Ford | Form 990 | $300,873FY2025 |
| Climate Democracy InitiativeDenver | Form 990 | $295,056FY2025 |
| North American Hazardous Materials Management AssociationEaton | Form 990 | $294,947FY2025 |
| Estes Valley Watershed CoalitionEstes Park | Form 990 | $293,310FY2025 |
| Southeast & East Central Recycling AssociationWalsenburg | Form 990 | $293,011FY2024 |
| Purgatoire Watershed Partnership IncTrinidad | Form 990 | $277,444FY2024 |
| Roaring Fork Safe PassagesBasalt | Form 990 | $276,649FY2025 |
| Friends of High CampTelluride | Form 990 | $275,760FY2025 |
| El Paso County Parks Naturalist Docent Organization IncColorado Springs | Form 990 | $275,113FY2025 |
| Vibe Tribe AdventuresAurora | Form 990 | $268,370FY2025 |
| Rocky Mountain Sport Riders IncAvon | Form 990 | $266,208FY2026 |
| Colorado Native Plant SocietyDenver | Form 990 | $249,264FY2025 |
| Montezuma School to Farm ProjectCortez | Form 990 | $244,246FY2025 |
| Durango Botanic GardensDurango | Form 990 | $237,914FY2025 |
| Conservation Investment GerminatorCastle Rock | Form 990 | $233,276FY2024 |
| Center for Snow and Avalanche StudiesSilverton | Form 990 | $226,558FY2026 |
| Energy & Conservation LawDurango | Form 990 | $225,726FY2024 |
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