| International Papillomavirus Society IncRockville | Form 990 | $901,694FY2025 |
| Maryland Ensemble Theatre IncFrederick | Form 990 | $891,432FY2025 |
| Associated Italian American Charities of Maryland IncManchester | Form 990 | $886,697FY2025 |
| Kappa Alpha Psi Foundation of Metropolitan Baltimore IncBaltimore | Form 990 | $879,010FY2025 |
| Anne Arundel County Public Libraryfoundation IncAnnapolis | Form 990 | $876,439FY2025 |
| Tuition Exchange IncBethesda | Form 990 | $875,089FY2025 |
| Friends Of@ecole Normale Superieure FoundationTimonium | Form 990 | $873,648FY2025 |
| Playtime CorporationFinksburg | Form 990 | $858,102FY2025 |
| Washington Montessori Institute IncRiverdale Park | Form 990 | $827,029FY2024 |
| American Diversity Group IncGermantown | Form 990 | $822,737FY2024 |
| Sikh Human Development Foundation IncPotomac | Form 990 | $815,201FY2024 |
| The Ability Challenge IncorporatedChevy Chase | Form 990 | $814,773FY2024 |
| Coalition of Urban and Metropolitan UniversitiesTowson | Form 990 | $802,968FY2025 |
| Granite Classical Tutorials IncColumbia | Form 990 | $795,534FY2024 |
| Atlantic Seaboard Dyslexia Education CenterHyattsville | Form 990 | $790,063FY2024 |
| Society for Research on Educational EffectivenessRockville | Form 990 | $765,553FY2025 |
| Foundation for Manufacturing ExcellenceMount Airy | Form 990 | $763,920FY2025 |
| Denton Child Development Center IncDenton | Form 990 | $761,765FY2024 |
| Childrens Scholarship Fund BaltimoreBaltimore | Form 990 | $757,997FY2025 |
| City Neighbors Foundation IncBaltimore | Form 990 | $756,156FY2025 |
| Foundation for Baltimore County Public Library IncTowson | Form 990 | $721,870FY2025 |
| College of Labor and Employment Lawyers IncAnnapolis | Form 990 | $713,924FY2024 |
| Pex CorpColumbia | Form 990 | $705,000FY2024 |
| Transportation Association of Maryland IncEllicott City | Form 990 | $696,697FY2025 |
| Transform Mid-Atlantic IncFrederick | Form 990 | $695,808FY2025 |
| Skill Will IncBethesda | Form 990 | $695,773FY2024 |
| The Ivymount Foundation IncRockville | Form 990 | $685,142FY2025 |
| Station North Tool Library IncBaltimore | Form 990 | $683,655FY2025 |
| Foundation for the Advancement of Music & Education IncUpper Marlboro | Form 990 | $667,290FY2025 |
| Our Kids Read AssociationLaurel | Form 990 | $656,402FY2024 |
| Nextgen Network IncOxon Hill | Form 990 | $653,568FY2025 |
| Moed IncorporatedChevy Chase | Form 990 | $652,904FY2024 |
| Beacon House IncHagerstown | Form 990 | $649,176FY2023 |
| Dent Education IncBaltimore | Form 990 | $642,174FY2025 |
| University of Karachi Alumni Assn of Balt WA Metro Area IncGreenbelt | Form 990 | $638,374FY2024 |
| Maryland Family InstituteAnnapolis | Form 990 | $635,488FY2024 |
| Afc Scholarship Foundation IncOdenton | Form 990 | $635,028FY2025 |
| Harriet Tubman Center for Cultural and Educational AdvancementCambridge | Form 990 | $633,203FY2023 |
| Super Kids Place IncArnold | Form 990 | $629,066FY2025 |
| Christiana Home School Academy IncHampstead | Form 990 | $616,495FY2024 |
| American Friends of Ateres Bnos Yerushalayim IncBaltimore | Form 990 | $596,244FY2024 |
| Friends of Rabbinical Academy for Advanced Jewish Studies Kol SimchaRockville | Form 990 | $585,826FY2024 |
| North American Vascular Biology Organization IncGermantown | Form 990 | $573,073FY2024 |
| Hebret Mutual Aid Society IncSilver Spring | Form 990 | $548,963FY2025 |
| Horizons of Kent and Queen Annes IncChestertown | Form 990 | $545,112FY2025 |
| Engaged Community OffshootsRiverdale | Form 990 | $543,718FY2024 |
| Horizons Delmarva IncSalisbury | Form 990 | $542,946FY2024 |
| Edu-Odyssey IncParkville | Form 990 | $525,972FY2024 |
| Secured IncLutherville-Timonium | Form 990 | $525,629FY2024 |
| Trinity Youth Services IncLargo | None required | $520,378FY2010 |