Data / Nonprofits / Washington / Mercer Island / Environment
Environment nonprofits in Mercer Island, WA: 6 registered with the IRS
6 environment nonprofits are registered with the IRS in Mercer Island, WA, 5 of them 501(c)(3) charities; the 2 that report revenue took in $481,429. The largest by revenue: Reflective Earth Foundation ($329,766), International Oak Society ($151,663).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Reflective Earth Foundation | 501(c)(3) | 2019 | $329,766 | $204,172 | 2025-12 |
| International Oak Society | 501(c)(3) | 1997 | $151,663 | $269,552 | 2024-12 |
| Climate Caravan | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Gue Seattle | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Marine Conservation Alliance | 501(c)(6) | 2003 | $0 | $0 | 2025-12 |
| Mercer Legacy | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
Other causes in Mercer Island, WA
- Education 38
- Philanthropy, voluntarism and grantmaking foundations 33
- Recreation and sports 22
- Arts, culture and humanities 20
- Human services 14
- Religion-related 10
- Youth development 7
- International, foreign affairs and national security 7
- Community improvement and capacity building 6
- Health care 6
- Public and societal benefit 3
Every nonprofit in Mercer Island, WA · Environment 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.