Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| American Prairie FoundationBozeman | Form 990 | $44,696,566FY2024 |
| Yellowstone ForeverBozeman | Form 990 | $34,471,459FY2026 |
| Montana Land RelianceHelena | Form 990 | $28,177,331FY2025 |
| The Trust for TomorrowTwin Bridges | Form 990 | $10,768,152FY2025 |
| National Center for Appropriate Technology IncButte | Form 990 | $10,096,549FY2025 |
| Flathead Land Trust IncKalispell | Form 990 | $9,415,179FY2024 |
| Prickly Pear Land TrustHelena | Form 990 | $8,891,943FY2024 |
| Greater Yellowstone Coalition IncBozeman | Form 990 | $7,031,420FY2025 |
| Ecology Project InternationalMissoula | Form 990 | $5,920,074FY2024 |
| The Big Sky Community OrganizationBig Sky | Form 990 | $5,112,525FY2025 |
| Backcountry Hunters and AnglersMissoula | Form 990 | $5,069,353FY2025 |
| Yellowstone to Yukon Conservation InitiativeBozeman | Form 990 | $4,573,117FY2024 |
| Five Valleys Land Trust IncMissoula | Form 990 | $4,400,694FY2025 |
| Montana Wilderness Association IncHelena | Form 990 | $3,987,071FY2025 |
| Climate ConservationBozeman | Form 990 | $3,781,863FY2025 |
| Gallatin Valley Land TrustBozeman | Form 990 | $3,719,249FY2025 |
| Blackfoot Challenge IncOvando | Form 990 | $3,365,208FY2024 |
| Headwaters Economics IncBozeman | Form 990 | $3,143,592FY2025 |
| Glacier Institute IncColumbia Falls | Form 990 | $2,624,757FY2025 |
| Honor the EarthColstrip | Form 990 | $2,520,162FY2025 |
| Clark Fork CoalitionMissoula | Form 990 | $2,500,027FY2024 |
| Montana Environmental Information Center IncHelena | Form 990 | $2,377,561FY2024 |
| Wilderness Land TrustHelena | Form 990 | $2,306,832FY2025 |
| Climate Ride IncMissoula | Form 990 | $2,131,587FY2024 |
| Adventurers and Scientists for ConservationBozeman | Form 990 | $1,993,301FY2026 |
| Gallatin River Task ForceBig Sky | Form 990 | $1,957,323FY2025 |
| Home ResourceMissoula | Form 990 | $1,804,843FY2025 |
| Heart of the Rockies InitiativeMissoula | Form 990 | $1,789,638FY2024 |
| Headwaters Resource Conservation and Development Area IncButte | Form 990 | $1,739,274FY2024 |
| Whitefish Legacy Partners IncWhitefish | Form 990 | $1,677,778FY2024 |
| Swan Valley ConnectionsCondon | Form 990 | $1,591,406FY2025 |
| Moonlight Community FoundationBig Sky | Form 990 | $1,569,271FY2026 |
| Montana AudubonHelena | Form 990 | $1,431,259FY2025 |
| Ranchers Stewardship Alliance IncMalta | Form 990 | $1,417,791FY2024 |
| Bitter Root Land Trust IncHamilton | Form 990 | $1,389,064FY2024 |
| Park County Environmental CouncilLivingston | Form 990 | $1,284,790FY2025 |
| Greater Gallatin Watershed CouncilBozeman | Form 990 | $1,275,960FY2024 |
| Bitter Root Resource Conservation and Development Area IncorporatedHamilton | Form 990 | $1,255,625FY2025 |
| Montana Natural History Center IncMissoula | Form 990 | $1,109,234FY2025 |
| Montana Association of Conservation DistrictsHelena | Form 990 | $1,082,348FY2024 |
| Vantage Earth Foundation IncBozeman | Form 990 | $954,062FY2025 |
| Friends of Beaver Creek Park IncorporatedHavre | Form 990 | $927,409FY2025 |
| Wilderness Watch IncMissoula | Form 990 | $897,431FY2024 |
| Montana Conservation Voters Education FundHelena | Form 990 | $871,159FY2024 |
| Environmental Health SciencesBozeman | Form 990 | $869,169FY2024 |
| Montana Freshwater Partners IncLivingston | Form 990 | $829,069FY2025 |
| Western Sustainability ExchangeLivingston | Form 990 | $798,902FY2024 |
| Project Wet FoundationBozeman | Form 990 | $711,201FY2025 |
| Madison River Foundation IncEnnis | Form 990 | $696,169FY2025 |
| Alternative Energy Resources OrganizationHelena | Form 990 | $692,132FY2025 |
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