Data / Nonprofits / South Dakota / Keystone
Nonprofits in Keystone, SD: 11 registered with the IRS
11 nonprofits are registered with the IRS in Keystone, SD, 10 of them 501(c)(3) charities; the 3 that report revenue took in $950,529. The largest by revenue: Keystone Ambulance Service Inc ($494,200), The Keystone Project Inc ($447,663), Keystone Chamber of Commerce ($8,666).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Keystone Ambulance Service Inc | Health care | 501(c)(3) | 1997 | $494,200 | $178,202 | 2024-12 |
| The Keystone Project Inc | Religion-related | 501(c)(3) | 2010 | $447,663 | $6 million | 2025-12 |
| Keystone Chamber of Commerce | 501(c)(6) | 1993 | $8,666 | $86,494 | 2025-12 | |
| Battle Creek Firefighters Assoc | Public safety, disaster preparedness and relief | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Church at Rapid City | 501(c)(3) | 1977 | ||||
| Keystone Area Historical Society | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Keystone Economic Development Association Inc | Community improvement and capacity building | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Keystone Senior Citizens Center | 501(c)(3) | 1994 | $0 | $0 | 2025-12 | |
| Meeting the Need Inc | Human services | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Stars and Stripes Charitable Alliance | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Taku Skan Skan Wasakliyapi-Global Institute for Traditional Sciences | Education | 501(c)(3) | 2023 | $0 | $0 | 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.