| Association of Federal Deposit Insurance Corporation Alumni IncGaithersburg | Form 990-N | No figure |
| Washington County Student Trades FoundationHagerstown | Form 990-EZ | $40,090FY2025 |
| Northwest High School Booster ClubGermantown | Form 990-EZ | $39,809FY2025 |
| The Pierians Foundation IncColumbia | Form 990-N | No figure |
| Benfield Elementary Parent Teacher OrganizationSeverna Park | Form 990-EZ | $39,332FY2025 |
| North Harford Hawks Booster Club IncPylesville | Form 990 | $39,119FY2025 |
| Urbana High School Drama BoostersIjamsville | Form 990-N | No figure |
| Middletown High School Band Boosters IncMiddletown | Form 990-EZ | $38,679FY2025 |
| Patricia H Hopkins Scholarship Fund IncHurlock | Form 990-EZ | $38,627FY2025 |
| 1 Uphandles IncSilver Spring | Form 990-N | No figure |
| Zuaa-GWDC Foundation IncPotomac | Form 990-N | No figure |
| Atoka Elementary School PTOCatonsville | Form 990-N | No figure |
| Mfantsipim Old Boys Association USA IncOlney | Form 990-N | No figure |
| Alpha Scholarship and Charitable Foundation of Iul IncorporatedSilver Spring | Form 990-N | No figure |
| KBM Community Development CorporationHavre de Grace | Form 990-N | No figure |
| Robin Hill Road LLCBaltimore | Form 990-N | No figure |
| Alpha Zeta Chapter Zeta Phi Beta Myrtle Tyler Faithful Fund IncGwynn Oak | Form 990-N | No figure |
| The Louella W Norfleet Memorial Scholarship Fund IncSilver Spring | Form 990-N | No figure |
| Pi Upsilon Lambda Charitable Foundation IncBowie | Form 990-N | No figure |
| Mary Lou Kalla Foundation IncSilver Spring | Form 990-EZ | $35,347FY2024 |
| Frederick County Students Mechanical Trades Foundation IncFrederick | Form 990-EZ | $35,165FY2025 |
| Friends of Compass Art Center IncKensington | Form 990-EZ | $35,150FY2025 |
| Bradley Hills Education Foundation CorporationGlen Echo | Form 990-EZ | $35,092FY2025 |
| Mechanicsville Elementary School Carroll County PTA IncSykesville | Form 990-N | No figure |
| Kevin E Reichardt FoundationBaltimore | Form 990-N | No figure |
| Glenelg Marching Unit Boosters IncGlenelg | Form 990-EZ | $34,173FY2025 |
| Towson-Catonsville Alumni Kappa Charitable FoundationBaltimore | Form 990-N | No figure |
| David Wagga Hunt Scholarship Foundation IncDavidsonville | Form 990-EZ | $33,125FY2025 |
| Friends of Montgomery County Farm Bureau IncorporatedGermantown | Form 990-N | No figure |
| Chapel District Elementary PTOCordova | Form 990-N | No figure |
| Southern Garrett Band Boosters IncOakland | Form 990-N | No figure |
| Fruitland Community Center IncFruitland | Form 990-N | No figure |
| PTA Delaware CongressPasadena | Form 990-EZ | $31,736FY2025 |
| Mobile Laboratory CoalitionGaithersburg | Form 990-N | No figure |
| Methodist Boys High School Alumni Association Washington MetropolitaLaurel | Form 990-EZ | $30,491FY2025 |
| National School Foundation Association IncCockeysville | Form 990-N | No figure |
| Maryland Council of Teachers of MathematicsColumbia | Form 990-N | No figure |
| PTA Maryland Congress Centennial PTA-MDEllicott City | Form 990-EZ | $29,743FY2025 |
| African Summon IncGermantown | Form 990-N | No figure |
| Competitive Edge Eq IncorporatedAccokeek | Form 990-N | No figure |
| Mindful Mentors IncGwynn Oak | Form 990-N | No figure |
| North High Boosters Club IncHagerstown | Form 990-EZ | $28,838FY2024 |
| Thomas Johnson High School Patriots Boosters IncFrederick | Form 990-EZ | $28,315FY2025 |
| Windsor Park Childrens School IncRandallstown | Form 990-N | No figure |
| Development of Village Education India IncSilver Spring | Form 990-N | No figure |
| Frederick Douglass High School Alumni Association IncorporatedBaltimore | Form 990-N | No figure |
| Black Church and Domestic Violence InstituteNorth Beach | Form 990-N | No figure |
| Brigadier General Charles McGee Alpha Scholarship FundSilver Spring | Form 990-N | No figure |
| Epsilon Phi Boule FoundationUpper Marlboro | Form 990-N | No figure |
| Todd Eustace and Irene Reyna Empowerment Scholarship CorporatioTowson | Form 990-N | No figure |