| General Federation of Womens ClubBethesda | Form 990 | $313,494FY2025 |
| Baltimore Zionist District IncPikesville | Form 990 | $311,637FY2025 |
| Kad Rivkah-Hachnosas Kalloh Fund IncBaltimore | Form 990 | $311,199FY2024 |
| Deer Park Community Volunteer Fire Department IncorporatedDeer Park | Form 990 | $310,702FY2025 |
| Choices for Life Pregnancy Center IncorporatedEaston | Form 990 | $310,372FY2024 |
| Walkersville High School Athletic Boosters IncWalkersville | Form 990 | $310,179FY2025 |
| Fidos for Freedom IncLaurel | Form 990 | $306,655FY2025 |
| Kettering-Largo-Mitchellville Boys & Girls Club IncUpper Marlboro | Form 990 | $305,451FY2024 |
| Our Ladys Center IncEllicott City | Form 990 | $303,815FY2025 |
| Usna Womens Shared Interest Group IncAnnapolis | Form 990 | $303,499FY2025 |
| The St Marys County Arts Council IncLeonardtown | Form 990 | $303,285FY2025 |
| Arts Council of Calvert County IncPrince Frederick | Form 990 | $303,260FY2025 |
| Cecil County Arts Council IncElkton | Form 990 | $302,659FY2025 |
| The Kentland Volunteer Fire Department of Kentland MD IncorporLandover | Form 990 | $300,836FY2024 |
| Louisiana Oncology SocietyRockville | Form 990 | $300,467FY2024 |
| National Minority Health AssociationOwings Mills | Form 990 | $299,148FY2023 |
| National Acupuncture Detoxification Association IncWaldorf | Form 990 | $297,853FY2025 |
| International Lawn Tennis Club of the United States of America IncBethesda | Form 990 | $297,351FY2024 |
| Baltimore Propeller Club Charitable Trust IncBaltimore | Form 990 | $296,396FY2025 |
| Harford Senior Housing II IncBel Air | Form 990 | $296,008FY2025 |
| AXYSRockville | Form 990 | $294,021FY2025 |
| Historical Society of Harford County IncBel Air | Form 990 | $293,374FY2024 |
| Izaak Walton League of America IncMount Airy | Form 990 | $292,279FY2025 |
| Mt Airy Net IncMount Airy | Form 990 | $290,727FY2025 |
| Adopt a Block IncBaltimore | Form 990 | $289,904FY2025 |
| Stillmeadow Community Projects IncBaltimore | Form 990 | $289,129FY2023 |
| Washington County Arts Council IncHagerstown | Form 990 | $288,183FY2025 |
| Society of St Vincent de Paul Baltimore Council IncFrederick | Form 990 | $287,740FY2025 |
| 32nd Street Farmers Market IncWhite Hall | Form 990 | $286,323FY2025 |
| PTA Delaware CongressChevy Chase | Form 990 | $285,888FY2025 |
| Potomac Area HostelsGlenn Dale | Form 990 | $282,270FY2024 |
| Society of St Vincent de Paul Baltimore Council IncEllicott City | Form 990 | $280,609FY2025 |
| St Joseph Hospital Medical Staff Education Fund IncBaltimore | Form 990 | $278,146FY2025 |
| All Boys Academy CorporationGwynn Oak | Form 990 | $276,708FY2024 |
| Brenda Brown-Lipitz Family Foundation IncBaltimore | Form 990 | $275,544FY2025 |
| Little League Baseball IncCalifornia | Form 990 | $274,951FY2025 |
| Rockville Meals on Wheels IncRockville | Form 990 | $274,701FY2025 |
| Air Force Historical FoundationMechanicsville | Form 990 | $272,111FY2025 |
| Sherwood Gardens Stratford Green Foundation IncBaltimore | Form 990 | $270,073FY2025 |
| World Stop Stuttering AssociationPotomac | Form 990 | $267,638FY2024 |
| Middletown High School Sports Club IncMiddletown | Form 990 | $266,870FY2025 |
| Corner Team IncBaltimore | Form 990 | $265,010FY2024 |
| Cantate Chamber Singers IncTakoma Park | Form 990 | $264,139FY2025 |
| Police Unity Tour IncHavre de Grace | Form 990 | $260,596FY2025 |
| Historical Miniatures Gaming SocietyBel Air | Form 990 | $260,503FY2024 |
| Society of St Vincent de Paul Baltimore Council IncSeverna Park | Form 990 | $258,478FY2025 |
| Howard County Historical Society IncEllicott | Form 990 | $258,266FY2025 |
| Vegetarian Resource GroupBaltimore | Form 990 | $257,913FY2024 |
| Annapolis Summer Garden Theatre IncAnnapolis | Form 990 | $257,050FY2024 |
| Catholic Charities Housing IncTimonium | Form 990 | $255,549FY2025 |