Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| National Energy Assistance Directors AssociationWashington | Form 990 | $528,238FY2024 |
| Rural Investment to Protect Our EnvironmentWashington | Form 990 | $516,944FY2025 |
| Partnership for the National Trails SystemWashington | Form 990 | $506,575FY2025 |
| Hyo Jeong International Foundation for the Unity of the SciencesWashington | Form 990 | $495,535FY2024 |
| National Energy Resources Organization IncWashington | Form 990 | $474,508FY2024 |
| Efficiency Valuation OrganizationWashington | Form 990 | $409,971FY2025 |
| Environmental Design Research Association IncWashington | Form 990 | $409,765FY2024 |
| Alliance for Pulp & Paper Technology InnovationWashington | Form 990 | $399,350FY2024 |
| Center for Climate StrategiesWashington | Form 990 | $358,854FY2024 |
| CODE4NATURE IncWashington | Form 990 | $349,036FY2024 |
| Netcentric Campaigns IncWashington | Form 990 | $332,950FY2024 |
| Clean Air InstituteWashington | Form 990 | $322,593FY2023 |
| National Fish Habitat Fund IncWashington | Form 990 | $322,190FY2025 |
| MANUWashington | Form 990 | $320,429FY2025 |
| Marine Debris FoundationWashington | Form 990 | $299,905FY2025 |
| The National Council for Science and the EnvironmentWashington | Form 990 | $266,252FY2025 |
| Colibri Catalyst IncWashington | Form 990 | $250,000FY2024 |
| Youth Learning As Citizen Environmental ScientistsWashington | Form 990 | $248,216FY2024 |
| District of Columbia Green Spaces AllianceWashington | Form 990 | $222,290FY2024 |
| Sargasso Sea Project IncWashington | Form 990 | $215,301FY2024 |
| Green SchemeWashington | Form 990 | $212,917FY2024 |
| National Fund for Us Botanic GardenWashington | Form 990 | $203,285FY2024 |
| Business Council for Sustainable Energy FoundationWashington | Form 990-EZ | $198,250FY2024 |
| Earthshot FoundationWashington | Form 990-EZ | $192,736FY2024 |
| Zenith Community Arts FoundationWashington | Form 990-EZ | $173,996FY2024 |
| District of Columbia Green Spaces AllianceWashington | Form 990-EZ | $152,100FY2025 |
| Rosedale Conservancy IncWashington | Form 990 | $151,217FY2025 |
| Reserva the Youth Land Trust LLCWashington | Form 990-EZ | $142,097FY2024 |
| Center for Water Security and CooperationWashington | Form 990-EZ | $135,215FY2025 |
| Forestplanet IncWashington | Form 990-EZ | $107,485FY2024 |
| ConservaniaWashington | Form 990-EZ | $101,397FY2025 |
| Global Carbon Management FoundationWashington | Form 990-EZ | $100,000FY2025 |
| Transcaucasian Trail AssociationWashington | Form 990-EZ | $91,995FY2024 |
| Recycling Research Foundation IncWashington | Form 990-EZ | $85,763FY2024 |
| Climate Equity FoundationWashington | Form 990-EZ | $79,500FY2025 |
| National Waterways FoundationWashington | Form 990-EZ | $67,556FY2024 |
| Georgetown Garden ClubWashington | Form 990-EZ | $67,230FY2025 |
| DC NativesWashington | Form 990-EZ | $55,104FY2025 |
| Environmental Fund of WashingtonWashington | Form 990-EZ | $54,981FY2025 |
| Black Landscape Architects NetworkWashington | Form 990-EZ | $53,502FY2022 |
| National Capital Area Garden Clubs IncWashington | Form 990 | $52,250FY2025 |
| Fearless FundWashington | Form 990-N | No figure |
| New Columbia Community Land Trust IncWashington | Form 990-N | No figure |
| Energy Programs ConsortiumWashington | Form 990-N | No figure |
| Macarthur Beautification GroupWashington | Form 990-N | No figure |
| St Catherine Island Foundation IncWashington | Form 990-N | No figure |
| Friends of Fletchers CoveWashington | Form 990-N | No figure |
| Peregrine ProjectWashington | Form 990-N | No figure |
| The House of GreenWashington | Form 990-N | No figure |
| Earth Advocacy Institute IncWashington | Form 990-N | No figure |
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