Data / Nonprofits / California / Jamestown
Nonprofits in Jamestown, CA: 29 registered with the IRS
29 nonprofits are registered with the IRS in Jamestown, CA, 28 of them 501(c)(3) charities; the 3 that report revenue took in $16.9 million. The largest by revenue: Mathiesen Memorial Health Clinic ($15.2 million), Sierra Waldorf School ($1.3 million), Humane Society of Tuolumne County Incorporated ($414,268). Most common causes: animal-related (4), religion-related (4), education (3).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Mathiesen Memorial Health Clinic | Health care | 501(c)(3) | 2010 | $15.2 million | $11.2 million | 2024-12 |
| Sierra Waldorf School | Education | 501(c)(3) | 1991 | $1.3 million | $875,769 | 2025-06 |
| Humane Society of Tuolumne County Incorporated | Animal-related | 501(c)(3) | 1977 | $414,268 | $2.5 million | 2025-06 |
| Alliance of Independent Bigfoot Researchers | Science and technology | 501(c)(3) | 2007 | $0 | $0 | 2025-11 |
| Employee and Community Benefit Association | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
| Equine Rescue Inc | Animal-related | 501(c)(3) | 2024 | |||
| Give Someone A Chance | Housing and shelter | 501(c)(3) | 2012 | $0 | $0 | 2025-06 |
| Gold Country Feral Kitties Inc | Animal-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Gold Star Kids | Public and societal benefit | 501(c)(3) | 2015 | $0 | $0 | 2025-10 |
| Jamestown Christian Fellowship | Religion-related | 501(c)(3) | 2003 | |||
| Jamestown Congregation of Jehovahs Witnesses | 501(c)(3) | 1992 | 2003-12 | |||
| Jamestown Elementary Pto | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Little League Baseball Inc | Recreation and sports | 501(c)(3) | 1967 | $0 | $0 | 2024-09 |
| M A K E Project Inc | International, foreign affairs and national security | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Miracle of Faith Ministries | Religion-related | 501(c)(3) | 2002 | $0 | $0 | 2024-12 |
| Mother Lode Gun Club | 501(c)(4) | 1996 | $0 | $251,460 | 2024-12 | |
| Promotion Club of Jamestown | Community improvement and capacity building | 501(c)(3) | 2006 | $0 | $0 | 2025-12 |
| Roman North | Public and societal benefit | 501(c)(3) | 2024 | |||
| Rowdy Blu Valentine Memorial Founda Tion | Animal-related | 501(c)(3) | 2026 | |||
| Shawna Baker Foundation Inc | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Sierra Sluggers | Youth development | 501(c)(3) | 2025 | |||
| Sonora 425 Squad Club Inc | Community improvement and capacity building | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Sozo Fellowship | Religion-related | 501(c)(3) | 2019 | |||
| Strawberry Way Foundation | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Switch Up Sounds Inc | Human services | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| TJ Walker Foundation | Mental health and crisis intervention | 501(c)(3) | 2026 | |||
| Table Mountain Chapel | Religion-related | 501(c)(3) | 1998 | |||
| Tuolumne Area Performance Athletic Club | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Watts Powerhouse Food | Food, agriculture and nutrition | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
By cause in Jamestown, CA
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.