Data / Nonprofits / Montana / Custer
Nonprofits in Custer, MT: 5 registered with the IRS
5 nonprofits are registered with the IRS in Custer, MT, 4 of them 501(c)(3) charities; the 2 that report revenue took in $86,931. The largest by revenue: Waco-Custer Ditch Company ($70,100), Custer Community School Support Foundation Inc ($16,831).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Waco-Custer Ditch Company | 501(c)(12) | 1963 | $70,100 | $776,634 | 2025-09 | |
| Custer Community School Support Foundation Inc | Education | 501(c)(3) | 2002 | $16,831 | $27,347 | 2025-12 |
| Custer Pto | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Junction City Senior Citizens Center | Food, agriculture and nutrition | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Rebels Booster Club | Recreation and sports | 501(c)(3) | 2021 | $35,018 | 2025-12 |
Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.