| Clarksburg High School Organizationof Musical Parents and HelpersClarksburg | Form 990-EZ | $67,450FY2025 |
| RMHS Athletic Booster Club IncRockville | Form 990-EZ | $67,380FY2025 |
| Cardinal Soccer Club Foundation IncForest Hill | Form 990-EZ | $66,705FY2025 |
| Federal Hill Preparatory School Parent Teacher OrganizationBaltimore | Form 990-EZ | $66,627FY2025 |
| Bradley Hills Elementary School PTA IncBethesda | Form 990-EZ | $66,464FY2025 |
| Chesapeake Math and It Elementary PTOLaurel | Form 990-EZ | $66,407FY2025 |
| Binu - the Jewish History Foundation IncBaltimore | Form 990-EZ | $66,288FY2024 |
| Empower SVCT IncGaithersburg | Form 990-EZ | $65,912FY2025 |
| Discover STEAM IncorporatedRockville | Form 990-EZ | $65,163FY2025 |
| The Building Congress and Exchange Foundation IncElkridge | Form 990 | $64,641FY2024 |
| Maryland Biodiversity Project IncCambridge | Form 990-EZ | $64,552FY2025 |
| Busload of Books IncChestertown | Form 990-EZ | $64,232FY2025 |
| Fighting Viking Football FamilyBethesda | Form 990-EZ | $64,042FY2026 |
| Global Federation of Black Speakers IncBeltsville | Form 990-EZ | $63,873FY2025 |
| PTA Maryland Congress of Parent & Teachers IncEldersburg | Form 990-EZ | $63,521FY2025 |
| Friends of Hampden School No 55 CorporationBaltimore | Form 990-EZ | $63,337FY2025 |
| Annapolis Kappa Scholarship Fund IncGambrills | Form 990-EZ | $62,958FY2025 |
| Little Italy Lodge Osia 2286 Foundation IncBaltimore | Form 990-EZ | $62,529FY2025 |
| The Roland-Northern Bridge Company IncBaltimore | Form 990 | $62,137FY2025 |
| Brian Cosgrove Memorial Fund IncTowson | Form 990-EZ | $62,130FY2024 |
| PTA Maryland Congress of Parent and Teachers IncOcean City | Form 990-EZ | $61,378FY2025 |
| Epimeta CorpBaltimore | Form 990-EZ | $61,319FY2025 |
| Centennial High School Friends of Music IncEllicott City | Form 990-EZ | $60,996FY2025 |
| Cumberland Area Summer Lunch Box IncCumberland | Form 990-EZ | $60,588FY2025 |
| Shipleys Choice Elementary PTO LtdMillersville | Form 990-EZ | $60,511FY2026 |
| Ace Mentor Program of AnnapolisAnnapolis | Form 990-EZ | $60,498FY2025 |
| Towson High School Sports Boosters Club IncTowson | Form 990-EZ | $60,284FY2025 |
| Crayons & Culture IncorporatedBaltimore | Form 990-EZ | $60,188FY2024 |
| Flash Tech Summit IncTemple Hills | Form 990-EZ | $60,000FY2025 |
| Whitman High School Education Foudation CorporationCabin John | Form 990-EZ | $59,926FY2025 |
| Alabama a&M University Washington DC Metropolitan Alumni ChapterBowie | Form 990-EZ | $58,974FY2025 |
| Kanada Biblical Missionary Organization IncEllicott City | Form 990-EZ | $58,860FY2023 |
| Wole Ogunyemi FoundationBowie | Form 990-EZ | $58,810FY2024 |
| Society of Loyola Old Boys IncLothian | Form 990-EZ | $58,436FY2024 |
| Friends of the Calvert County Library IncPrince Frederick | Form 990-EZ | $58,313FY2025 |
| CMW Project Graduation Parent Committee IncorporatedBel Air | Form 990-EZ | $58,231FY2025 |
| Carver Center Foundation IncRiderwood | Form 990-EZ | $57,595FY2025 |
| Central Elementary School Parent Teacher Organization IncEdgewater | Form 990-EZ | $57,589FY2025 |
| Luther Jaybird Grimes Foundation IncWilliamsport | Form 990-EZ | $57,319FY2025 |
| PTA Maryland Congress of Parents & Teachers IncGaithersburg | Form 990-EZ | $56,964FY2025 |
| Maryland Counseling Association IncGaithersburg | Form 990-EZ | $56,961FY2025 |
| KC7 Foundation IncSilver Spring | Form 990-EZ | $56,076FY2024 |
| Severna Park Middle School PTO IncSeverna Park | Form 990-EZ | $56,057FY2025 |
| Ahepa Endowment Fund-Ahepa AwardsOlney | Form 990-EZ | $55,750FY2026 |
| Digital Bridge USA DB-USAMontgomery Village | Form 990-EZ | $55,596FY2024 |
| Mountain Ridge Band Parents Association IncFrostburg | Form 990-EZ | $55,377FY2025 |
| Cmit South Elementary PTO IncUpper Marlboro | Form 990-EZ | $55,362FY2025 |
| Sapphire Rise IncorporatedGambrills | Form 990-EZ | $55,260FY2025 |
| PTA Delaware CongressBethesda | Form 990-EZ | $55,127FY2025 |
| North American Textile Conservation Conference IncGreenbelt | Form 990-EZ | $54,708FY2025 |