Data / Foundation grants / Treeline Foundation
Treeline Foundation: 44 grants to organizations, $1.1 million (tax year ended December 2024)
Treeline Foundation, a private foundation in Seattle, WA, paid 44 grants to organizations totaling $1,124,999 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on November 5, 2025. The largest was $110,000 to YMCA of Greater Seattle in Seattle, WA for to provide general operating support and support of the social impact center.
SpecStream is the live web data engine for teams and agents. It reads every private foundation's Form 990-PF as the IRS publishes it, and this page is that reading. Ask for the foundations that fund your cause in your state, with the amounts and purposes, and new grants arrive in your sheet, CRM, Slack or agent as the returns are filed.
- EIN
- 462216403
- Based in
- Seattle, WA
- Assets
- $750,377
- Grants paid
- $1,124,999
- Tax year ended
- December 2024
Grants paid, tax year ended December 2024
From the Form 990-PF filed November 5, 2025, IRS object ID 202503099349100735. It reported $1,124,999 in grants paid; 44 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| YMCA of Greater Seattle | Seattle, WA | To provide general operating support and support of the social impact center | $110,000 | apps.irs.gov | |
| Sightline Institute | Seattle, WA | To support efforts to address climate change | Environment | $100,000 | apps.irs.gov |
| Washington Trails Association | Seattle, WA | General operating support, with special interest in olt program | $100,000 | apps.irs.gov | |
| 350org | Boston, MA | To provide general operating support | $75,000 | apps.irs.gov | |
| The Sierra Club Foundation | Oakland, CA | To support of the outdoors for all program | Environment | $75,000 | apps.irs.gov |
| Northwest Abortion Access Fund | Portland, OR | To provide general operating support | $65,000 | apps.irs.gov | |
| Forterra | Seattle, WA | To provide general operating support | $50,000 | apps.irs.gov | |
| Benefits Law Center | Seattle, WA | To provide general operating support | Human services | $25,000 | apps.irs.gov |
| Earthgen | Seattle, WA | To provide general operating support | Environment | $25,000 | apps.irs.gov |
| Fresh Tracks | Washington, DC | To provide general operating support | $25,000 | apps.irs.gov | |
| Seattle Shakespeare Company | Seattle, WA | To provide general operating support | $25,000 | apps.irs.gov | |
| The Trust for Public Land | Los Angeles, CA | General operating support in tpl's seattle region | $25,000 | apps.irs.gov | |
| Zeno | Seattle, WA | To provide general operating support | Education | $25,000 | apps.irs.gov |
| Casa Latina | Seattle, WA | To provide general operating support | Education | $20,000 | apps.irs.gov |
| Desc | Seattle, WA | To provide general operating support | $20,000 | apps.irs.gov | |
| Islandwood | Bainbridge Island, WA | To provide general operating support | Environment | $20,000 | apps.irs.gov |
| Mary's Place | Seattle, WA | To provide general operating support | $20,000 | apps.irs.gov | |
| National Audubon Society | New York, NY | To support of audubon washingtons seward park center | $20,000 | apps.irs.gov | |
| Pacific Science Center | Seattle, WA | To provide general operating support | $20,000 | apps.irs.gov | |
| Plymouth Housing Group | Seattle, WA | To provide general operating support | Housing and shelter | $20,000 | apps.irs.gov |
| Solid Ground | Seattle, WA | To provide general operating support | $20,000 | apps.irs.gov | |
| YWCA Seattle King Snohomish | Seattle, WA | To support of women experiencing homelessness | $20,000 | apps.irs.gov | |
| Youthcare | Seattle, WA | To provide general operating support | Human services | $20,000 | apps.irs.gov |
| American Alpine Club | Golden, CO | General operating support, with special interest in reaching younger and more diverse climbers | $15,000 | apps.irs.gov | |
| The Vera Project | Seattle, WA | To provide general operating support | Arts, culture and humanities | $15,000 | apps.irs.gov |
| A Contemporary Theatre | Seattle, WA | To provide general operating support | $10,000 | apps.irs.gov | |
| Birds Connect Seattle | Seattle, WA | To support of youth educational programming | Environment | $10,000 | apps.irs.gov |
| Crisis Text Line | New York, NY | To provide general operating support | Mental health and crisis intervention | $10,000 | apps.irs.gov |
| Define American | Los Angeles, CA | To provide general operating support | Human services | $10,000 | apps.irs.gov |
| Northwest Choirs | Seattle, WA | To provide general operating support | Arts, culture and humanities | $10,000 | apps.irs.gov |
| Northwest Film Forum | Seattle, WA | To support the ultimate citizens video | Arts, culture and humanities | $10,000 | apps.irs.gov |
| Northwest Outward Bound | Portland, OR | To providing general operating support of programming in mazama, wa | $10,000 | apps.irs.gov | |
| Rainier Valley Corps | Seattle, WA | To support the ageup program | $10,000 | apps.irs.gov | |
| Sawhorse Revolution | Seattle, WA | To provide general operating support | Education | $10,000 | apps.irs.gov |
| Seattle Girls School | Seattle, WA | To provide general operating support | Education | $10,000 | apps.irs.gov |
| Seattle Repertory Theatre | Seattle, WA | To support of the public works program | Arts, culture and humanities | $10,000 | apps.irs.gov |
| Seattle Symphony | Seattle, WA | To provide general operating support | $10,000 | apps.irs.gov | |
| The 5 Gyres Institute | Santa Monica, CA | To provide general operating support | $10,000 | apps.irs.gov | |
| The Mountaineers | Seattle, WA | To support the mountain workshops program | Environment | $10,000 | apps.irs.gov |
| The Mountains To Sound Greenway Trust | Seattle, WA | To provide general operating support | $10,000 | apps.irs.gov | |
| Totem Star | Seattle, WA | To provide general operating support | Youth development | $10,000 | apps.irs.gov |
| Catawba College | Salisbury, NC | In support of gals program | Education | $3,333 | apps.irs.gov |
| New Mexico State University | Las Cruces, NM | To provide general operating support | $3,333 | apps.irs.gov | |
| University of Arizona | Tucson, AZ | In support of gals program | $3,333 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Environment | $240,000 |
| Education | $68,333 |
| Human services | $55,000 |
| Arts, culture and humanities | $45,000 |
| Housing and shelter | $20,000 |
| Mental health and crisis intervention | $10,000 |
| Youth development | $10,000 |
States funded
| Recipient state | Granted |
|---|---|
| Washington | $775,000 |
| California | $120,000 |
| Massachusetts | $75,000 |
| Oregon | $75,000 |
| New York | $30,000 |
| District of Columbia | $25,000 |
| Colorado | $15,000 |
| North Carolina | $3,333 |
Also on SpecStream
- Who funds environment in Washington
- Who funds environment in California
- Who funds education in Washington
- Who funds human services in Washington
- Who funds arts, culture and humanities in Washington
- Who funds housing and shelter in Washington
Updated November 5, 2025. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.