Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Denver Botanic Garden IncDenver | Form 990 | $52,099,889FY2025 |
| Colorado Open LandsLakewood | Form 990 | $51,292,712FY2025 |
| Global Greengrants Fund IncBoulder | Form 990 | $34,978,956FY2025 |
| Colorado Clean Energy FundDenver | Form 990 | $34,801,464FY2025 |
| Water Research FoundationDenver | Form 990 | $24,332,001FY2025 |
| Western Conservation FoundationDenver | Form 990 | $14,580,557FY2024 |
| Mesa County Land Conservancy IncGrand Junction | Form 990 | $12,402,360FY2025 |
| Eco-Cycle IncBoulder | Form 990 | $10,954,908FY2025 |
| Colorado Youth Corps AssociationDenver | Form 990 | $10,857,315FY2025 |
| Conservation Lands FoundationDurango | Form 990 | $10,166,862FY2025 |
| Outward Bound IncBoulder | Form 990 | $9,836,006FY2024 |
| GreenlatinosBoulder | Form 990 | $8,681,276FY2024 |
| Colorado Water Trust IncDenver | Form 990 | $7,621,148FY2024 |
| Keystone CenterKeystone | Form 990 | $7,414,788FY2025 |
| Protect Our WintersBoulder | Form 990 | $6,668,021FY2024 |
| Environment America Research and Policy Center IncDenver | Form 990 | $6,390,013FY2025 |
| Aspen Center for Environmental StudiesAspen | Form 990 | $6,250,553FY2025 |
| River NetworkBoulder | Form 990 | $6,131,058FY2025 |
| Resource CentralBoulder | Form 990 | $5,511,846FY2025 |
| The Foundation for Natural Resources and Energy LawBroomfield | Form 990 | $5,211,030FY2024 |
| Southern Plains Land TrustLamar | Form 990 | $5,008,312FY2024 |
| High Country NewsPaonia | Form 990 | $4,774,808FY2025 |
| Western Landowners AllianceDenver | Form 990 | $4,576,444FY2025 |
| Ecosystem Services Market ConsortiumThornton | Form 990 | $4,537,447FY2025 |
| Conservation Colorado Education FundDenver | Form 990 | $4,345,643FY2025 |
| Denver Urban GardensDenver | Form 990 | $4,093,066FY2025 |
| Iclei Local Governments for Sustainability USA IncDenver | Form 990 | $4,053,847FY2024 |
| Revision InternationalDenver | Form 990 | $3,972,501FY2024 |
| Garden of the Gods FoundationColorado Springs | Form 990 | $3,923,670FY2025 |
| Aspen Valley Land TrustCarbondale | Form 990 | $3,744,689FY2024 |
| Coalitions and Collaboratives IncDenver | Form 990 | $3,743,920FY2024 |
| Playa Lakes Joint VentureLongmont | Form 990 | $3,631,231FY2024 |
| Wild Bear Nature CenterNederland | Form 990 | $3,605,386FY2025 |
| National Grazing Lands CoalitionCastle Pines | Form 990 | $3,531,813FY2024 |
| Confluence Center of Colorado IncGrand Junction | Form 990 | $3,527,791FY2025 |
| Colorado Garden Show IncLakewood | Form 990 | $3,522,450FY2025 |
| Solar Energy InternationalPaonia | Form 990 | $3,273,199FY2024 |
| Community Office for Resource EfficiencyAspen | Form 990 | $3,144,130FY2024 |
| Southwest Energy Efficiency Project LLCBoulder | Form 990 | $3,107,827FY2025 |
| Colorado Center for the Advancement of Patient SafetyDenver | Form 990 | $3,095,820FY2024 |
| Trees Water and PeopleFort Collins | Form 990 | $3,058,683FY2026 |
| Fishchoice IncFort Collins | Form 990 | $3,052,875FY2024 |
| Chama Peak Land AlliancePagosa Springs | Form 990 | $2,954,234FY2025 |
| Cal-Wood Education CenterJamestown | Form 990 | $2,915,742FY2025 |
| Colorado Mountain Club FoundationGolden | Form 990 | $2,798,293FY2025 |
| Thorne Ecological InstituteLafayette | Form 990 | $2,681,033FY2025 |
| Colorado Mountain ClubGolden | Form 990 | $2,672,717FY2025 |
| Leave No Trace Center for Outdoor EthicsBoulder | Form 990 | $2,670,656FY2025 |
| Pact CollectiveEvergreen | Form 990 | $2,636,594FY2025 |
| Savory Institute Org IncBoulder | Form 990 | $2,633,218FY2024 |
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