Data / Foundation grants / Winslow Foundation
Winslow Foundation: 57 grants to organizations, $1.9 million (tax year ended December 2024)
Winslow Foundation, a private foundation in Wilmington, DE, paid 57 grants to organizations totaling $1,878,000 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on October 9, 2025. The largest was $250,000 to Mothers Out Front Inc in Boston, MA for general & unrestricted.
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- EIN
- 222778703
- Based in
- Wilmington, DE
- Assets
- $43,912,566
- Grants paid
- $1,878,000
- Tax year ended
- December 2024
Grants paid, tax year ended December 2024
From the Form 990-PF filed October 9, 2025, IRS object ID 202502829349100015. It reported $1,878,000 in grants paid; 57 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Mothers Out Front Inc | Boston, MA | General & Unrestricted | Environment | $250,000 | apps.irs.gov |
| Johns Hopkins University | Baltimore, MD | Planetary Health Alliance | $200,000 | apps.irs.gov | |
| Keep Our Republic Charitable Fund | Natl Harbor, MD | General & Unrestricted | $175,000 | apps.irs.gov | |
| Cambridge Health Alliance Foundation Inc | Malden, MA | Climate Health Organizing Fellows Program | Health care | $100,000 | apps.irs.gov |
| Stanford University | Stanford, CA | Conservation Center for Biology | $100,000 | apps.irs.gov | |
| Marine Conservation Biology Institute | Seattle, WA | General & Unrestricted | $80,000 | apps.irs.gov | |
| Royal Roads University | Victoria, CA | Cascade Institute | $75,000 | apps.irs.gov | |
| Appalachian Voices | Boone, NC | General & Unrestricted | Environment | $50,000 | apps.irs.gov |
| Climate Cabinet Education | San Francisco, CA | General & Unrestricted | Environment | $50,000 | apps.irs.gov |
| Global Impact | Washington, DC | Future US | International, foreign affairs and national security | $50,000 | apps.irs.gov |
| Government Accountability Project Inc | Washington, DC | General & Unrestricted | $50,000 | apps.irs.gov | |
| Greenlight America | Washington, DC | General & Unrestricted | Environment | $50,000 | apps.irs.gov |
| Oil & Gas Action Network | Oakland, CA | Climate Health Now | $50,000 | apps.irs.gov | |
| Sustainable Markets Foundation | New York, NY | Constitutional Democracy Initiative | Environment | $50,000 | apps.irs.gov |
| Wildearth Guardians | Santa Fe, NM | General & Unrestricted | $50,000 | apps.irs.gov | |
| Board of Regents of the University of Wisconsin Sy | Milwaukee, WI | Pollinator biodiversity and the stability of ecosystem services in a changing climate | $43,000 | apps.irs.gov | |
| Bennington College Corporation | Bennington, VT | Beyond Plastics | Education | $40,000 | apps.irs.gov |
| Hack Foundation | W Hollywood, CA | Campus Climate Network | Science and technology | $40,000 | apps.irs.gov |
| Saving Nature Inc | Durham, NC | General & Unrestricted | $40,000 | apps.irs.gov | |
| Virginia Organizing Inc | Charlottesville, VA | Science Communications Network | Community improvement and capacity building | $40,000 | apps.irs.gov |
| Alliance for Youth Organizing | Washington, DC | General & Unrestricted | Civil rights, social action and advocacy | $35,000 | apps.irs.gov |
| Carolina Federation Fund | Durham, NC | General & Unrestricted | Human services | $30,000 | apps.irs.gov |
| Clean and Prosperous America Education Fund | Seattle, WA | General & Unrestricted | Environment | $30,000 | apps.irs.gov |
| Fair Elections Center | Washington, DC | General & Unrestricted | Civil rights, social action and advocacy | $30,000 | apps.irs.gov |
| Secure Families Foundation | Washington, DC | General & Unrestricted | International, foreign affairs and national security | $30,000 | apps.irs.gov |
| Worker Power Institute | Phoenix, AZ | General & Unrestricted | Community improvement and capacity building | $30,000 | apps.irs.gov |
| Make the Road States Inc | Brooklyn, NY | Make the Road Nevada | Human services | $25,000 | apps.irs.gov |
| Onepa Activist United | Philadelphia, PA | General & Unrestricted | Civil rights, social action and advocacy | $20,000 | apps.irs.gov |
| Voces de La Frontera | Milwaukee, WI | General & Unrestricted | Human services | $20,000 | apps.irs.gov |
| Western Resource Advocates | Boulder, CO | General & Unrestricted | Crime and legal-related | $7,000 | apps.irs.gov |
| Way To Rise | Washington, DC | General & Unrestricted | Education | $5,000 | apps.irs.gov |
| People and Pollinators Action Network | Niwot, CO | General & Unrestricted | Environment | $3,000 | apps.irs.gov |
| 350vermont | Burlington, VT | General & Unrestricted | Environment | $2,000 | apps.irs.gov |
| High Country Conservation Advocates | Crested Butte, CO | General & Unrestricted | $2,000 | apps.irs.gov | |
| High Country News | Paonia, CO | General & Unrestricted | Environment | $2,000 | apps.irs.gov |
| Rappahannock League for Environmental Protection I | Washington, VA | General & Unrestricted | $2,000 | apps.irs.gov | |
| Colorado Plateau Foundation | Flagstaff, AZ | General & Unrestricted | Education | $1,500 | apps.irs.gov |
| Cultivando | Eastlake, CO | General & Unrestricted | Community improvement and capacity building | $1,500 | apps.irs.gov |
| Home Energy Efficiency Team Inc | Boston, MA | General & Unrestricted | Housing and shelter | $1,500 | apps.irs.gov |
| New Era Colorado Foundation | Denver, CO | General & Unrestricted | Civil rights, social action and advocacy | $1,500 | apps.irs.gov |
| 350 Colorado | Boulder, CO | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Center for Biological Diversity Inc | Tucson, AZ | General & Unrestricted | Animal-related | $1,000 | apps.irs.gov |
| Coal Creek Watershed Coalition | Crested Butte, CO | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Colorado Chautauqua Association | Boulder, CO | Garden Maintenance Fund | $1,000 | apps.irs.gov | |
| Colorado Organization for Latina Opportunity and R | Denver, CO | General & Unrestricted | $1,000 | apps.irs.gov | |
| Conservation Colorado Education Fund | Denver, CO | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Earth Restoration Alliance | Carbondale, CO | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Ecoflight | Aspen, CO | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Environmental Health Sciences | Bozeman, MT | Environmental Health News | Environment | $1,000 | apps.irs.gov |
| Greenlatinos | Boulder, CO | Colorado focused work | Environment | $1,000 | apps.irs.gov |
| Pajarito Environmental Education Center | Los Alamos, NM | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Planned Parenthood Federation of America Inc | Washington, DC | General & Unrestricted | $1,000 | apps.irs.gov | |
| Resource Central | Boulder, CO | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Southwest Energy Efficiency Project LLC | Boulder, CO | General & Unrestricted | Environment | $1,000 | apps.irs.gov |
| Wildaid Inc | San Francisco, CA | General & Unrestricted | Animal-related | $1,000 | apps.irs.gov |
| Colorado Chautauqua Association | Boulder, CO | General & Unrestricted | $500 | apps.irs.gov | |
| Colorado Sun | Denver, CO | General & Unrestricted | Arts, culture and humanities | $500 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Environment | $497,000 |
| Health care | $100,000 |
| Civil rights, social action and advocacy | $86,500 |
| International, foreign affairs and national security | $80,000 |
| Human services | $75,000 |
| Community improvement and capacity building | $71,500 |
| Education | $46,500 |
| Science and technology | $40,000 |
States funded
| Recipient state | Granted |
|---|---|
| Maryland | $375,000 |
| Massachusetts | $351,500 |
| District of Columbia | $251,000 |
| California | $241,000 |
| North Carolina | $120,000 |
| Washington | $110,000 |
| New York | $75,000 |
| Wisconsin | $63,000 |
Also on SpecStream
- Who funds environment in Massachusetts
- Who funds health care in Massachusetts
- Who funds international, foreign affairs and national security in District of Columbia
- Who funds civil rights, social action and advocacy in District of Columbia
- Who funds environment in North Carolina
- Who funds environment in California
Updated October 9, 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.