Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Echoes of Nature IncBowie | Form 990 | $258,280FY2025 |
| Horizon of Hope IncWoodbine | Form 990 | $244,531FY2025 |
| Patuxent Tidewater Land TRLeonardtown | Form 990 | $222,808FY2025 |
| Restore the Earth Foundation IncEaston | Form 990 | $217,709FY2024 |
| Oceanites IncChevy Chase | Form 990 | $217,335FY2024 |
| Earthreports IncUpper Marlboro | Form 990 | $209,516FY2025 |
| Charles Koiner Center for Urban FarmingSilver Spring | Form 990 | $204,075FY2024 |
| Green Advantage IncFrederick | Form 990-EZ | $191,218FY2025 |
| Little Falls Watershed Alliance IncChevy Chase | Form 990-EZ | $188,070FY2025 |
| ZNRG Foundation IncPotomac | Form 990-EZ | $187,251FY2025 |
| Baltimore County Land Trust Coalition IncHunt Valley | Form 990-EZ | $178,434FY2025 |
| Anchor Point IncCambridge | Form 990-EZ | $177,812FY2025 |
| Lower Susquehanna Heritage Greenway IncDarlington | Form 990-EZ | $174,237FY2025 |
| Kent Narrows Development FoundationChester | None required | $170,199FY2025 |
| Volunteer Team IncFlintstone | Form 990 | $168,436FY2025 |
| Talbot County Garden Club IncEaston | Form 990 | $165,170FY2024 |
| Mobilize FrederickFrederick | Form 990-EZ | $164,317FY2024 |
| Algonquin Ultras IncFruitland | Form 990-EZ | $160,852FY2025 |
| Filbert Street GardenBaltimore | Form 990-EZ | $158,421FY2025 |
| Climb for Hope IncBaltimore | Form 990-EZ | $144,726FY2024 |
| Ocean City Reef FoundationBerlin | Form 990-EZ | $143,608FY2025 |
| Oregon Ridge Nature Center CouncilCockeysville | Form 990 | $142,015FY2025 |
| Delmarva RC&D IncCambridge | Form 990-EZ | $140,998FY2025 |
| Minorities in AquacultureEaston | Form 990-EZ | $139,143FY2023 |
| Spa Creek ConservancyAnnapolis | Form 990-EZ | $138,211FY2025 |
| Phillips Wharf Environmental CenterincEaston | Form 990-EZ | $135,850FY2025 |
| Eastern Shore Heritage IncChestertown | Form 990-EZ | $135,386FY2025 |
| Maryland Forests Association IncLinkwood | Form 990-EZ | $132,603FY2025 |
| Forever Maryland Foundation IncEaston | Form 990-EZ | $132,026FY2025 |
| Gemm Comm LimitedForestville | Form 990-EZ | $129,825FY2025 |
| Friends of Herring Run Parks IncBaltimore | Form 990-EZ | $124,240FY2024 |
| The Manor Conservancy IncMonkton | Form 990 | $114,869FY2024 |
| Friends of Calvert State Park IncLusby | Form 990-EZ | $114,178FY2025 |
| Friends of Blackwater IncorporatedCambridge | Form 990-EZ | $113,438FY2025 |
| Ecosikh IncorporatedSilver Spring | Form 990-EZ | $111,342FY2024 |
| Deep Creek Watershed Foundation IncOakland | Form 990-EZ | $110,951FY2025 |
| Smart-on-SmartTakoma Park | Form 990-EZ | $110,250FY2025 |
| Turner Station Conservation Teams IncDundalk | Form 990-EZ | $109,277FY2024 |
| Climatecritical EarthBaltimore | Form 990-EZ | $107,400FY2024 |
| Silvoculture IncFrederick | Form 990-EZ | $106,918FY2025 |
| Center for Ecosystem Recovery CorpMillersville | Form 990-EZ | $104,000FY2025 |
| Association for Environmental Studies and SciencesHalethorpe | Form 990-EZ | $99,854FY2025 |
| Annapolis Green IncAnnapolis | Form 990-EZ | $98,844FY2024 |
| Trash Free MarylandBaltimore | Form 990-EZ | $95,000FY2024 |
| Way the Truth and Light Missionary FoundationJoppa | Form 990-EZ | $94,095FY2025 |
| Magothy River Association IncSeverna Park | Form 990-EZ | $90,708FY2025 |
| Common Ground Earth IncBel Air | Form 990-EZ | $85,788FY2025 |
| Wicomico Environmental Trust LtdSalisbury | Form 990-EZ | $80,526FY2024 |
| Calvert Nature Society IncPort Republic | Form 990 | $77,088FY2025 |
| Our Zero Waste Future IncorporatedBaltimore | Form 990-EZ | $74,295FY2024 |
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