Environment organizations operating in Washington — revenue, assets, and AI-powered transparency analysis from IRS 990 data.
| # | Organization | City | Revenue | Score |
|---|---|---|---|---|
| 1 | Arboretum Foundation | Seattle | $8.8M | — |
| 2 | Breakthrough Energy Action Inc | Kirkland | $8.8M | — |
| 3 | Clean And Prosperous America Education Fund | Seattle | $8.4M | — |
| 4 | Co2 Foundation | Seattle | $6.1M | — |
| 5 | Composite Recycling Technology Center | Port Angeles | $5.8M | — |
| 6 | Methow Salmon Recovery Foundation | Twisp | $5.7M | — |
| 7 | Marine Stewardship Council Limited | Tukwila | $5.7M | — |
| 8 | Washington Conservation Action Education Fund | Seattle | $5.3M | — |
| 9 | Ecostudies Institute | Olympia | $5.3M | — |
| 10 | Sightline Institute | Seattle | $4.7M | — |
| 11 | Conservation Nw | Seattle | $4.2M | — |
| 12 | Mt Adams Resource Stewards | Glenwood | $3.8M | — |
| 13 | Ertv Compliance Group | Seattle | $3.7M | — |
| 14 | Toxic Free Future | Seattle | $3.7M | — |
| 15 | Sustainable Connections | Bellingham | $3.3M | — |
| 16 | Building Transparency | Seattle | $3.0M | — |
| 17 | 350 Seattle | Seattle | $2.9M | — |
| 18 | Unkitawa | Kent | $2.8M | — |
| 19 | Pipeline Safety Trust | Bellingham | $2.8M | — |
| 20 | Duwamish River Cleanupcoalition Technical Advisory Group | Seattle | $2.7M | 92/100 |
There are 100 environment nonprofits in Washington, with $161.6M in combined revenue and $207.6M in total assets.
The largest environment nonprofit in Washington by revenue is Arboretum Foundation with $8.8M in annual revenue.
Spending data is being compiled.
Check the organization's Mission Score, review red flags, examine spending breakdowns, and verify their IRS 990 filings on NonprofitSpending. Legitimate nonprofits typically spend 65%+ of their budget on programs.