Data / Nonprofits / Washington / Winthrop
Nonprofits in Winthrop, WA: 48 registered with the IRS
48 nonprofits are registered with the IRS in Winthrop, WA, 36 of them 501(c)(3) charities; the 22 that report revenue took in $32.4 million. The largest by revenue: Methow Valley Family Home Center Association ($10.2 million), Okanogan County Electric Cooperative Incorpative ($8.3 million), Methow Housing Trust ($3.1 million). Most common causes: environment (6), education (6), recreation and sports (4).
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 |
|---|---|---|---|---|---|---|
| Methow Valley Family Home Center Association | Human services | 501(c)(3) | 2014 | $10.2 million | $10.1 million | 2025-12 |
| Okanogan County Electric Cooperative Incorpative | 501(c)(12) | 1940 | $8.3 million | $19.8 million | 2024-12 | |
| Methow Housing Trust | Housing and shelter | 501(c)(3) | 2017 | $3.1 million | $17.3 million | 2024-12 |
| Little Star School Montessori | Education | 501(c)(3) | 1983 | $2.3 million | $5.1 million | 2025-06 |
| Methow Valley Sports Trails Association | Environment | 501(c)(3) | 2001 | $2.1 million | $5.3 million | 2026-05 |
| Methow Conservancy | Youth development | 501(c)(3) | 1994 | $1.8 million | $19.5 million | 2025-03 |
| Rural Peoples Voice | Civil rights, social action and advocacy | 501(c)(4) | 2025 | $1.1 million | $1.1 million | 2024-12 |
| Winthrop Ice & Sports Rink | Recreation and sports | 501(c)(3) | 2000 | $785,071 | $735,875 | 2025-06 |
| Methow Valley Nordic Ski Educational Foundation | Youth development | 501(c)(3) | 2000 | $458,321 | $300,665 | 2025-06 |
| Methow Valley Trails Collaborative | Environment | 501(c)(3) | 2023 | $364,949 | $124,516 | 2025-12 |
| Classroom in Bloom | Education | 501(c)(3) | 2009 | $309,135 | $419,190 | 2025-06 |
| Home Range Wildlife Research | Animal-related | 501(c)(3) | 2022 | $290,464 | $122,338 | 2025-09 |
| Public School Funding Alliance | Education | 501(c)(3) | 2003 | $285,489 | $327,117 | 2025-12 |
| Winthrop Chamber of Commerce | 501(c)(6) | 1979 | $258,514 | $16,980 | 2025-12 | |
| Methow Valley Education Foundation | 501(c)(3) | 1984 | $177,385 | $3.9 million | 2025-12 | |
| Methow Valley Riding Unlimited | Human services | 501(c)(3) | 1999 | $145,668 | $77,290 | 2025-12 |
| Northwest Community Land Trust Coalition | Environment | 501(c)(3) | 2005 | $118,153 | $142,864 | 2024-12 |
| Kiwanis International Inc | 501(c)(4) | 1953 | $62,207 | $75,769 | 2025-09 | |
| Winthrop Kiwanis Foundation | 501(c)(3) | 1971 | $58,890 | $71,515 | 2024-12 | |
| Chewuch Canal Company | 501(c)(12) | 1943 | $53,676 | $187,258 | 2025-12 | |
| Fire Adapted Methow | Public safety, disaster preparedness and relief | 501(c)(3) | 2025 | $36,735 | $28,821 | 2025-12 |
| Friends of the Winthrop Public Library | Education | 501(c)(3) | 2017 | $33,855 | $214,700 | 2025-12 |
| Biota Maxima | Environment | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| C6 Innovations | Environment | 501(c)(3) | 2024 | |||
| Early Winters Ditch Association | Mutual and membership benefit | 501(c)(12) | 2023 | $0 | $0 | 2024-12 |
| Fog Horn Ditch Co | 501(c)(12) | 1922 | $0 | $0 | 2025-12 | |
| Freakout | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Friends of the Eagle School | Education | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Fulton Ditch Company | 501(c)(12) | 1962 | $0 | $0 | 2026-01 | |
| Harvest Home Ministries | Human services | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| International Association of Fire Fighter | 501(c)(5) | 1959 | ||||
| International Kingdom Foundation | Religion-related | 501(c)(3) | 2013 | |||
| Liberty Bell High School Booster Club | Education | 501(c)(3) | 2000 | $0 | $0 | 2025-06 |
| Lost River Sewer Association | 501(c)(12) | 1989 | $0 | $0 | 2026-06 | |
| MVR House of Prayer | 501(c)(3) | 2001 | $0 | $0 | 2025-12 | |
| MVR Ministries | 501(c)(3) | 1970 | $0 | $0 | 2025-12 | |
| Mazama Community Church | Religion-related | 501(c)(3) | 2025 | |||
| Methow Cycling Team Education Foundation | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Methow Forest Forum | Environment | 501(c)(3) | 2026 | |||
| Methow Valley Education Association | Employment | 501(c)(5) | 2026 | $0 | $0 | 2025-08 |
| Methow Valley Fly Fishers | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Methow Valley Youth Soccer | Recreation and sports | 501(c)(3) | 2025 | |||
| Mountain Music Fund | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Northwest Charitable Productions | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Palouse To Cascades Trail Coalition | Public and societal benefit | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Ralph and Jeanne Jennings Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $579,547 | 2025-12 | |
| River2raven | Housing and shelter | 501(c)(3) | 2026 | $9,000 | 2025-12 | |
| Skyline Ditch Co Inc | Mutual and membership benefit | 501(c)(12) | 2002 | $0 | $0 | 2025-12 |
By cause in Winthrop, WA
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.