| Yellowstone Western Heritage Center FoundationBillings | None required | $385,792FY2024 |
| Sweetgrass LodgeChester | Form 990 | $377,565FY2025 |
| Mondak Historical & Art SocietySidney | Form 990 | $366,460FY2025 |
| Bozeman Swimming ClubBozeman | Form 990 | $365,227FY2025 |
| Billings Aquatic Club IncBillings | Form 990 | $364,569FY2025 |
| Montana Shrine East-West Football Game IncButte | Form 990 | $362,111FY2024 |
| Yellowstone County 4-H CouncilBillings | Form 990 | $359,773FY2025 |
| Park County Senior Citizens CorporationLivingston | Form 990 | $349,176FY2025 |
| Hi-Line Health Service Foundation IncChester | Form 990 | $347,580FY2025 |
| Glacier Hockey Association IncWhitefish | Form 990 | $345,356FY2025 |
| National Smokejumpers AssociationMissoula | Form 990 | $342,334FY2025 |
| Kalispell Legion Baseball AssociationKalispell | Form 990 | $341,768FY2025 |
| General Federation of Womens ClubsEnnis | Form 990 | $341,357FY2025 |
| Life Net of MissoulaMissoula | Form 990 | $341,055FY2024 |
| Montana United Indian AssociationGreat Falls | Form 990 | $338,230FY2026 |
| Casa of Cascade CountyGreat Falls | Form 990 | $337,060FY2025 |
| Saves IncLewistown | Form 990 | $329,812FY2024 |
| Montana Association for the Blind IncBozeman | Form 990 | $327,408FY2024 |
| Polson Senior Citizens IncPolson | Form 990 | $325,912FY2025 |
| Butte Symphony AssociationButte | Form 990 | $324,995FY2025 |
| Public Land Water Access Association IncBozeman | Form 990 | $324,115FY2025 |
| Big Brothers and Sisters of Butte Silver Bow IncorporatedButte | Form 990 | $319,174FY2025 |
| Haven House IncHamilton | Form 990 | $317,385FY2025 |
| Whitefish Library Association IncWhitefish | Form 990 | $312,173FY2025 |
| Senior Citizens of Lincoln CountyLibby | Form 990 | $311,334FY2025 |
| Hart to Heart Ministries IncHamilton | Form 990 | $302,000FY2025 |
| Friends of the Jaycee Park LLCDillon | Form 990 | $301,874FY2025 |
| Hospitality HouseBig Timber | Form 990 | $299,177FY2025 |
| Pondera County Council on AgingConrad | Form 990 | $296,863FY2025 |
| Great Bear FoundationMissoula | Form 990 | $289,980FY2025 |
| Bitterroot Heritage AcademyStevensville | Form 990 | $286,589FY2026 |
| Sacajawea Audubon SocietyBozeman | Form 990 | $283,582FY2024 |
| Great Falls-Cascade County Senior Citizens CenterGreat Falls | Form 990 | $281,638FY2025 |
| St Johns Lutheran Hospital Foundation IncLibby | Form 990 | $275,021FY2025 |
| Lewis and Clark Library Public FoundationHelena | Form 990 | $272,808FY2025 |
| Bitter Root Valley Historical SocietyHamilton | Form 990 | $271,306FY2024 |
| Search and AssistBillings | Form 990 | $267,365FY2024 |
| Meagher County Senior CitizensWhite Sulphur Springs | Form 990 | $261,016FY2025 |
| Kootenai Senior CitizensTroy | Form 990 | $259,640FY2025 |
| The Great Falls Amateur Hockey AssociationGreat Falls | Form 990 | $259,076FY2026 |
| Big Brothers Big Sisters NW MontanaKalispell | Form 990 | $258,806FY2024 |
| Our Lady of the Rockies IncButte | Form 990 | $258,765FY2024 |
| Bozeman High School LacrosseBozeman | Form 990 | $256,495FY2025 |
| Stillwater Historical SocietyColumbus | Form 990 | $247,306FY2024 |
| Gallatin Historical SocietyBozeman | Form 990 | $247,133FY2025 |
| Montana Academy of Pediatric Physicians IncBillings | Form 990 | $244,902FY2024 |
| Morning Star Expeditions IncBillings | Form 990 | $237,664FY2024 |
| Livingston Meals on WheelsLivingston | Form 990 | $232,619FY2025 |
| Montana Pittie Project IncArlee | Form 990 | $230,232FY2024 |
| Miracle of America Story IncPolson | Form 990 | $229,384FY2024 |