| Harrison High School Instrumental Music Boosters IncEvansville | Form 990-EZ | $44,564FY2025 |
| Forest Hills Historical Foundation IncRichmond | Form 990-N | No figure |
| Middlebury Historical Society IncMiddlebury | Form 990-N | No figure |
| Historic Eleutherian College IncMadison | Form 990-N | No figure |
| Summit City Theatre Works IncFort Wayne | Form 990-N | No figure |
| Milan 54 IncMilan | Form 990-EZ | $42,183FY2024 |
| Force Band AidesWinchester | Form 990-EZ | $42,122FY2025 |
| Peru Circus Festival Band IncPeru | Form 990-EZ | $42,028FY2024 |
| National Association of Aladdin Lamp Collectors IncAnderson | Form 990-N | No figure |
| City of Gary Economic Development CorpGary | Form 990 | $41,568FY2024 |
| Tri-Creek Band BoostersLowell | Form 990-N | No figure |
| Eastern Woodland Carvers ClubConverse | Form 990-N | No figure |
| The Ralph & Lilian Fendig Summer Theatre for Children IncRensselaer | Form 990-N | No figure |
| Mid America Print CouncilFort Wayne | Form 990-N | No figure |
| Antiquarian and Historical Society of CulverCulver | Form 990-N | No figure |
| Indiana Malayali Association IncMcCordsville | Form 990-N | No figure |
| Friends of the New York Central Railroad Museum IncElkhart | Form 990-N | No figure |
| Northern Indiana Power from the PastWinamac | Form 990-EZ | $37,433FY2025 |
| Musical Family Tree IncIndianapolis | Form 990-N | No figure |
| Connor Brites WildflowersDecatur | Form 990-N | No figure |
| University Club Foundation IncIndianapolis | Form 990-N | No figure |
| Zimmerman Glasstoberfest IncCorydon | Form 990-N | No figure |
| Theatreworks of Southern Indiana IncNew Albany | Form 990-N | No figure |
| People Engaging in PreservationLa Porte | Form 990-N | No figure |
| Southern Indiana Center for the Arts IncSeymour | Form 990-N | No figure |
| Movin Legacy IncIndianapolis | Form 990-N | No figure |
| Friends of the Limberlost State Historical Site IncGeneva | Form 990-N | No figure |
| Wilbur Wright BirthplaceHagerstown | Form 990-N | No figure |
| Echo Effect IncShelbyville | Form 990-N | No figure |
| Indiana Track and Field Hall of Fame Foundation IncBloomington | Form 990-N | No figure |
| Asian American Today IncIndianapolis | Form 990-N | No figure |
| Floyd County Historical Society IncNew Albany | Form 990-N | No figure |
| Bloomington Book Festival IncBloomington | Form 990-N | No figure |
| U Matter 2 IncPlymouth | Form 990-N | No figure |
| Seymour Band Booster AssociationSeymour | Form 990-N | No figure |
| Friends of the Culbertson Mansion IncNew Albany | Form 990-N | No figure |
| Brown County Music AssociationNashville | Form 990-N | No figure |
| Wolfgang Orchestra & Chorus IncMount Vernon | Form 990-N | No figure |
| Jay County 4th of July CommitteeincPortland | Form 990-N | No figure |
| Center Stage Community TheatreLebanon | Form 990-N | No figure |
| Columbus Museum of Art and Design IncColumbus | Form 990-N | No figure |
| Fort Wayne Maennerchor IncFort Wayne | Form 990-EZ | $26,969FY2025 |
| Lithuanian Cartography and Sphragistics Scientific Research CMichigan City | Form 990-N | No figure |
| Dance Central Academy Parent Club IncorporatedJasper | Form 990-EZ | $25,889FY2025 |
| Bloomington Roots Foundation IncBloomington | Form 990-N | No figure |
| Fort Wayne Artists Guild IncFort Wayne | Form 990-N | No figure |
| Evansville Philharmonic Guild IncEvansville | Form 990-EZ | $24,016FY2025 |
| Ireland Historical Society IncIreland | Form 990-N | No figure |
| Indiana Baseball Hall of Fame IncJasper | Form 990-EZ | $23,903FY2025 |
| Sing Love MinistriesNoblesville | Form 990-N | No figure |