Data / Nonprofits / Washington / Sammamish / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Sammamish, WA: 23 registered with the IRS
23 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Sammamish, WA, 23 of them 501(c)(3) charities; the 3 that report revenue took in $492,265. The largest by revenue: Team Everest USA ($384,613), Equality Effect Inc ($75,000), Sammamish Rotary Foundation ($32,652).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Team Everest USA | 501(c)(3) | 2020 | $384,613 | $25,359 | 2025-12 |
| Equality Effect Inc | 501(c)(3) | 2025 | $75,000 | $12,901 | 2025-06 |
| Sammamish Rotary Foundation | 501(c)(3) | 2005 | $32,652 | $206,667 | 2025-06 |
| Kaplita Fam Foundation Trust | 501(c)(3) | 2007 | $1.3 million | 2025-12 | |
| May Education Foundation | 501(c)(3) | 2025 | |||
| Mel Stottlemyre Myeloma Foundation | 501(c)(3) | 2006 | $32,773 | 2009-12 | |
| Neljer Fund | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| One Gives Hope | 501(c)(3) | 2016 | $28,222 | 2025-12 | |
| Oosterhof Foundation Inc | 501(c)(3) | 2024 | $1.2 million | 2025-12 | |
| Open Hearts Big Dreams Fund | 501(c)(3) | 2017 | $0 | $202,167 | 2024-12 |
| Rain City Sandwiches | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Simperman-Corette Foundation | 501(c)(3) | 1995 | $6.1 million | 2025-12 | |
| Smilingtree | 501(c)(3) | 2023 | $0 | $0 | 2026-01 |
| Sparsh | 501(c)(3) | 2025 | |||
| Step Forward Foundation | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Stuimpact | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Surge Delight Foundation | 501(c)(3) | 2024 | $48,000 | 2024-12 | |
| The Horwitz Family Memorial Foundation | 501(c)(3) | 2000 | $2.7 million | 2024-12 | |
| The MM2 Foundation | 501(c)(3) | 2026 | |||
| The Wren Foundation | 501(c)(3) | 2000 | $1 | 2025-12 | |
| Thiri-Org | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Welkin Family Foundation | 501(c)(3) | 2026 | |||
| Wright Foundation | 501(c)(3) | 2022 | $2.8 million | 2025-12 |
Other causes in Sammamish, WA
- Education 68
- Arts, culture and humanities 37
- Recreation and sports 32
- Human services 27
- Religion-related 16
- Youth development 14
- Food, agriculture and nutrition 8
- Environment 8
- Health care 7
- Community improvement and capacity building 6
- Public and societal benefit 5
- Civil rights, social action and advocacy 4
- Animal-related 4
- Science and technology 4
- International, foreign affairs and national security 3
- Public safety, disaster preparedness and relief 3
- Medical research 3
Every nonprofit in Sammamish, WA · Philanthropy, voluntarism and grantmaking foundations nonprofits across the state · 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.