| Long Valley Preservation Society IncDonnelly | Form 990-EZ | $61,013FY2025 |
| Schweitzer ChapelPonderay | Form 990 | $60,704FY2025 |
| Idaho Suzuki Association IncCaldwell | Form 990-EZ | $60,505FY2025 |
| Ace Mentor Program of America IncBoise | Form 990-EZ | $60,046FY2025 |
| God and Country Association IncNampa | Form 990-EZ | $59,497FY2025 |
| Salmon Library AssociationSalmon | Form 990 | $57,896FY2025 |
| Little League Baseball IncHayden | Form 990-EZ | $55,296FY2025 |
| Magic Valley Symphony Orchestra IncTwin Falls | Form 990-EZ | $53,756FY2026 |
| Bingham County Historical SocietyBlackfoot | Form 990-EZ | $51,549FY2025 |
| Twin Lakes Improvement Association IncRathdrum | Form 990-EZ | $50,262FY2025 |
| PTA Idaho CongressEagle | Form 990-EZ | $49,370FY2026 |
| PTA Idaho CongressMeridian | Form 990-EZ | $47,466FY2026 |
| Shoshone Medical Center Foundation IncKellogg | Form 990-EZ | $46,998FY2023 |
| Ministry to the AgedBoise | Form 990-N | No figure |
| Idaho Watercolar Society IncBoise | Form 990-N | No figure |
| Paul Parent Teacher OrganizationPaul | Form 990-EZ | $43,959FY2025 |
| Trout UnlimitedBoise | Form 990-N | No figure |
| School District No 150 Education Foundation IncSoda Springs | Form 990-N | No figure |
| Mountain Home Spouses ClubMountain Home AFB | Form 990-N | No figure |
| Post Falls Education Foundation IncPost Falls | Form 990-N | No figure |
| Challis Arts Council IncChallis | Form 990-EZ | $35,764FY2025 |
| International Festivals and Events Association FoundationBoise | Form 990-N | No figure |
| Blaine County Historical Museum IncHailey | Form 990-N | No figure |
| Valley County Search and Rescue IncDonnelly | Form 990-N | No figure |
| Idaho Falls-Bonneville County D A R E IncIdaho Falls | Form 990 | $30,581FY2025 |
| Eagle Rock Gun School and RangeIdaho Falls | Form 990-N | No figure |
| Intermountain Regional Section of the Inst of Food Technologists IncIdaho Falls | Form 990-EZ | $27,351FY2025 |
| West Valley Medical Center AuxilaryCaldwell | Form 990-EZ | $21,262FY2026 |
| Boise Basin Quilters IncBoise | Form 990-EZ | $21,084FY2024 |
| Pocatello Ski Association IncPocatello | Form 990-EZ | $20,233FY2025 |
| Jobs Daughters InternationalBoise | Form 990-N | No figure |
| Chances - Dog Rescue and RelocationCoeur d'Alene | Form 990-N | No figure |
| Weiser Public Schools Education Foundation IncWeiser | Form 990-N | No figure |
| Greater Boise Rotary Foundation IncBoise | Form 990-EZ | $11,601FY2025 |
| Technology Student AssociationBoise | Form 990-N | No figure |
| Bonneville Idaho Falls Crimestopper IncIdaho Falls | Form 990-N | No figure |
| Wings Boosters IncBoise | Form 990-N | No figure |
| Demolay InternationalCaldwell | Form 990-N | No figure |
| National Society of the Daughters of the American RevolutionAthol | Form 990-N | No figure |
| Encore Theatre Company Etc Incorporated of IdahoNampa | Form 990-N | No figure |
| Idaho State Search and Rescue Association IncLewiston | Form 990-N | No figure |
| Sandpoint Cutthroat Lacrosse Club IncSandpoint | Form 990-N | No figure |
| Toastmasters InternationalHayden | Form 990-N | No figure |
| National Institute of Governmental Purchasing IncBoise | Form 990-N | No figure |
| Toastmasters InternationalBoise | Form 990-N | No figure |
| Idaho State Search and Rescue Assocation IncMountain Home | Form 990-N | No figure |
| Little League Baseball IncEmmett | Form 990-N | No figure |
| PTA Idaho CongressDalton Gardens | Form 990-N | No figure |
| Audrey Pet Foundation IncBoise | Form 990-N | No figure |
| PTA Idaho CongressBellevue | Form 990-N | No figure |