| Village at Lakeview Neighborhoodnetwrok Community CenterEdgewood | Form 990-EZ | $54,633FY2024 |
| St Marys Library Foundation IncLeonardtown | Form 990-EZ | $54,374FY2025 |
| Shady Side Elementary PTOShady Side | Form 990-EZ | $54,209FY2025 |
| Honeygo Elementary School PTO IncPerry Hall | Form 990-EZ | $54,143FY2026 |
| Century Athletic Boosters IncSykesville | Form 990-EZ | $53,951FY2025 |
| Patriots Boosters Club of Old Mill High School IncMillersville | Form 990-EZ | $53,829FY2023 |
| College Is Cool IncCollege Park | Form 990-EZ | $53,331FY2024 |
| Arizona Alpha of Phi Delta Theta Scholarship Trust DTD Aug 30 2019Columbia | Form 990-EZ | $53,132FY2025 |
| Cornerstone Home Educators Support & Tutorial IncEldersburg | Form 990-EZ | $52,781FY2026 |
| Montgomery County Students Foundation of Hospitality & RestauSilver Spring | Form 990-EZ | $51,876FY2025 |
| Hoco Roots Revisited IncSimpsonville | Form 990-EZ | $51,578FY2025 |
| Edgewater Elementary PTO IncEdgewater | Form 990-EZ | $51,471FY2025 |
| Airmen Memorial Foundation IncSuitland | Form 990 | $51,291FY2024 |
| Connect the Dots IncFallston | Form 990-EZ | $51,238FY2024 |
| Noyes Childrens Library Foundation IncKensington | Form 990 | $50,943FY2025 |
| Chesapeake Science Point Elementary PCS PTOHanover | Form 990-EZ | $50,755FY2025 |
| Williamsport Wildcat Athletic Booster Club IncWilliamsport | Form 990-EZ | $50,542FY2025 |
| Bel Air High School Athletic Booster ClubBel Air | Form 990-EZ | $50,397FY2025 |
| Match Wellness Foundation IncCumberland | Form 990-EZ | $50,000FY2025 |
| Action InformationRockville | Form 990-EZ | $50,000FY2024 |
| Parent Booster USA IncSykesville | Form 990 | $49,215FY2025 |
| Alsatia Club Foundation IncFunkstown | Form 990-N | No figure |
| Severna Park Elementary School PTOSeverna Park | Form 990-EZ | $48,251FY2026 |
| Friends Of@salisbury Elks Lodge 817 IncSalisbury | Form 990-N | No figure |
| Annie Walsh Old Girls Association IncSilver Spring | Form 990-EZ | $47,715FY2023 |
| Dace FoundationFrederick | Form 990-N | No figure |
| FSK Instrumental Music Boosters IncUnion Bridge | Form 990-EZ | $47,514FY2025 |
| Calvert County Public Library Foundation IncPrince Frederick | Form 990-EZ | $47,212FY2025 |
| Alumni Association of Franklin High School IncReisterstown | Form 990-N | No figure |
| Teachers Festival IncBethesda | Form 990-N | No figure |
| Mid-Eastern Chapter of the Society of Nuclear Medicine & MolecularGermantown | Form 990-EZ | $46,064FY2026 |
| Studio AfoundationRandallstown | Form 990-N | No figure |
| Albert Einstein High School Hall of FameKensington | Form 990-EZ | $45,416FY2022 |
| Queens Royal College International AssociationUpper Marlboro | Form 990-N | No figure |
| Odadee North America ChapterHagerstown | Form 990-N | No figure |
| Windsor Farm Parent Teacher OrganizationAnnapolis | Form 990-N | No figure |
| Huntingtown Elementary School Family and School Organization IncHuntingtown | Form 990-EZ | $44,989FY2025 |
| Lyra Legacy FoundationCheltenham | Form 990-N | No figure |
| Sejong Scholarship Foundation of America IncBaltimore | Form 990-EZ | $44,167FY2025 |
| North High Band Boosters IncHagerstown | Form 990-EZ | $43,988FY2026 |
| Walkersville High School Band Boosters IncWalkersville | Form 990-EZ | $42,691FY2025 |
| Water Babies Development Center IncLaurel | Form 990-N | No figure |
| PTA Delaware CongressMonrovia | Form 990-EZ | $42,540FY2026 |
| Hibernian Society of BaltimoreTimonium | Form 990 | $42,067FY2025 |
| Pearls of Hope Community FoundationGaithersburg | Form 990-N | No figure |
| International Club of Annapolis IncAnnapolis | Form 990-N | No figure |
| Maugansville Elementary MD PTOHagerstown | Form 990-EZ | $41,216FY2025 |
| Association of Notre Dame Clubs IncEllicott City | Form 990-N | No figure |
| Connor Rice Memorial Fund IncCentreville | Form 990-EZ | $40,861FY2025 |
| National Institute for Psychoanalytic Education and ReseaBaltimore | Form 990-N | No figure |