Funding search · EIN 222778703 · Wilmington, DE
Winslow Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 149
- grants reported
- $5.5M
- total given
- 2022–2024
- filing years
- $10,000
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
healthclimateallianceplanetaryfellowsnetworkorganizingbiodiversity
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Mothers Out Front3 grants · $750,000
- Johns Hopkins University3 grants · $627,667
- Keep Our Republic Charitable Fund3 grants · $425,000
- Cambridge Health Alliance Foundation4 grants · $312,760
- Stanford University3 grants · $300,000
- President & Fellows of Harvard College3 grants · $264,578
- Marine Conservation Biology Institute3 grants · $240,000
- Royal Roads University2 grants · $220,000
- Sustainable Markets Foundation3 grants · $210,000
- Oil & Gas Action Network3 grants · $150,000
Giving over time
Grant history
The 100 largest of 149 grants.
- $426,667
Johns Hopkins University · Baltimore, MD · 2023
Planetary Health Alliance
- $250,000
Mothers Out Front · Boston, MA · 2024
General & Unrestricted
- $250,000
Mothers Out Front · Boston, MA · 2023
General & Unrestricted
- $250,000
Mothers Out Front · Boston, MA · 2022
General & Unrestricted
- $200,000
Johns Hopkins University · Baltimore, MD · 2024
Planetary Health Alliance
- $200,000
President & Fellows of Harvard College · Cambridge, MA · 2022
Planetary Health Alliance - Project
- $175,000
Keep Our Republic Charitable Fund · Natl Harbor, MD · 2024
General & Unrestricted
- $150,000
Keep Our Republic Charitable Fund · National Harbor, MD · 2023
General & Unrestricted
- $145,000
Royal Roads University · 2023
Cascade Institute
- $119,000
USA for Unfpa · New York, NY · 2022
UNFPA Supplies Partnership Fund
- $112,760
Cambridge Health Alliance Foundation · Malden, MA · 2022
CHEEA Climate Health Organizing Fellows program
- $100,000
Cambridge Health Alliance Foundation · Malden, MA · 2024
Climate Health Organizing Fellows Program
- $100,000
Stanford University · Stanford, CA · 2024
Conservation Center for Biology
- $100,000
Stanford University · Stanford, CA · 2023
Center for Conservation Biology
- $100,000
Keep Our Republic Charitable Fund · The Plains, VA · 2022
General & Unrestricted
- $100,000
Stanford University · Stanford, CA · 2022
Center for Conservation Biology
- $80,000
Marine Conservation Biology Institute · Seattle, WA · 2024
General & Unrestricted
- $80,000
Marine Conservation Biology Institute · Seattle, WA · 2023
General & Unrestricted
- $80,000
Sustainable Markets Foundation · New York, NY · 2023
Clean Futures Project
- $80,000
Marine Conservation Biology Institute · Seattle, WA · 2022
General & Unrestricted
- $80,000
Sustainable Markets Foundation · New York, NY · 2022
EcoAccountability Project
- $75,000
Royal Roads University · 2024
Cascade Institute
- $61,178
President & Fellows of Harvard College · Cambridge, MA · 2022
Planetary Health Alliance
- $50,000
Appalachian Voices · Boone, NC · 2024
General & Unrestricted
- $50,000
Climate Cabinet Education · San Francisco, CA · 2024
General & Unrestricted
- $50,000
Global Impact · Washington, DC · 2024
Future US
- $50,000
Government Accountability Project · Washington, DC · 2024
General & Unrestricted
- $50,000
Greenlight America · Washington, DC · 2024
General & Unrestricted
- $50,000
Oil & Gas Action Network · Oakland, CA · 2024
Climate Health Now
- $50,000
Sustainable Markets Foundation · New York, NY · 2024
Constitutional Democracy Initiative
- $50,000
Wildearth Guardians · Santa Fe, NM · 2024
General & Unrestricted
- $50,000
Appalachian Voices · Boone, NC · 2023
General & Unrestricted
- $50,000
Cambridge Health Alliance Foundation · Malden, MA · 2023
Climate Health Organization Fellows
- $50,000
Cambridge Health Alliance Foundation · Malden, MA · 2023
Climate Health Organizing Fellows
- $50,000
Ffwd · San Francisco, CA · 2023
Climate Cabinet Education Fund
- $50,000
Government Accountability Project · Washington, DC · 2023
General & Unrestricted
- $50,000
Oil & Gas Action Network · Oakland, CA · 2023
Climate Health Now
- $50,000
Partnership Project · Washington, DC · 2023
Greenlight America
- $50,000
Wildearth Guardians · Santa Fe, NM · 2023
General & Unrestricted
- $50,000
Windward Fund · Washington, DC · 2023
Rural Climate Partnership
- $50,000
Appalachian Voices · Boone, NC · 2022
General & Unrestricted
- $50,000
Center for Common Ground · Ruther Glen, VA · 2022
Climate Cabinet Education
- $50,000
Fossil Free California · Oakland, CA · 2022
General & Unrestricted
- $50,000
Government Accountability Project · Washington, DC · 2022
General & Unrestricted
- $50,000
Oil & Gas Action Network · Oakland, CA · 2022
Climate Health Now
- $50,000
To Nizhoni Ani · Kykotsmovi, AZ · 2022
General & Unrestricted
- $50,000
Wildearth Guardians · Santa Fe, NM · 2022
General & Unrestricted
- $45,795
Board of Regents of the University of Wisconsin Sy · Milwaukee, WI · 2022
Pollinator biodiversity and the stability of ecosy
- $43,000
Board of Regents of the University of Wisconsin Sy · Milwaukee, WI · 2024
Pollinator biodiversity and the stability of ecosystem services in a changing climate
- $42,332
Board of Regents of the University of Wisconsin Sy · Milwaukee, WI · 2023
Pollinator biodiversity and the stability of ecosystem services in a changing climate
- $40,000
Bennington College Corporation · Bennington, VT · 2024
Beyond Plastics
- $40,000
Hack Foundation · W Hollywood, CA · 2024
Campus Climate Network
- $40,000
Saving Nature · Durham, NC · 2024
General & Unrestricted
- $40,000
Virginia Organizing · Charlottesville, VA · 2024
Science Communications Network
- $40,000
Saving Nature · Durham, NC · 2023
General & Unrestricted
- $40,000
Saving Nature · Durham, NC · 2022
General & Unrestricted
- $35,000
Alliance for Youth Organizing · Washington, DC · 2024
General & Unrestricted
- $35,000
Amalgamated Charitable Foundation · Washington, DC · 2022
Make It Matter Education Fund
- $30,000
Carolina Federation Fund · Durham, NC · 2024
General & Unrestricted
- $30,000
Clean and Prosperous America Education Fund · Seattle, WA · 2024
General & Unrestricted
- $30,000
Fair Elections Center · Washington, DC · 2024
General & Unrestricted
- $30,000
Secure Families Foundation · Washington, DC · 2024
General & Unrestricted
- $30,000
Worker Power Institute · Phoenix, AZ · 2024
General & Unrestricted
- $30,000
Virginia Organizing · Charlottesville, VA · 2023
Science Communications Network
- $30,000
Power Shift Network · Washington, DC · 2022
Divest Ed
- $30,000
Virginia Organizing · Charlottesville, VA · 2022
General & Unrestricted
- $30,000
Virginia Organizing · Charlottesville, VA · 2022
Science Communications Network
- $25,000
Make the Road States · Brooklyn, NY · 2024
Make the Road Nevada
- $25,000
Bennington College Corporation · Bennington, VT · 2023
Beyond Plastics
- $25,000
Partnership Project · Washington, DC · 2023
Fossil Free Research
- $20,000
Onepa Activist United · Philadelphia, PA · 2024
General & Unrestricted
- $20,000
Voces De La Frontera · Milwaukee, WI · 2024
General & Unrestricted
- $10,000
Cobalt Foundation · Denver, CO · 2022
General & Unrestricted
- $10,000
Earth Restoration Alliance · Carbondale, CO · 2022
Arctic Angels
- $10,000
Open Space Institute · New York, NY · 2022
General & Unrestricted
- $7,500
Western Resource Advocates · Boulder, CO · 2023
General & Unrestricted
- $7,000
Western Resource Advocates · Boulder, CO · 2024
General & Unrestricted
- $7,000
Western Resource Advocates · Boulder, CO · 2022
General & Unrestricted
- $5,000
Way To Rise · Washington, DC · 2024
General & Unrestricted
- $5,000
Comision Ciudadana Para La Auditoria Integral Del · San Juan, PR · 2023
General & Unrestricted
- $3,400
President & Fellows of Harvard College · Cambridge, MA · 2022
Harvard T H Chan School of Public Health - Planetary Health Alliance
- $3,000
People and Pollinators Action Network · Niwot, CO · 2024
General & Unrestricted
- $3,000
High Country Conservation Advocates · Crested Butte, CO · 2023
General & Unrestricted
- $3,000
People and Pollinators Action Network · Niwot, CO · 2022
General & Unrestricted
- $2,500
Colorado Plateau Foundation · Flagstaff, AZ · 2023
General & Unrestricted
- $2,000
350vermont · Burlington, VT · 2024
General & Unrestricted
- $2,000
High Country Conservation Advocates · Crested Butte, CO · 2024
General & Unrestricted
- $2,000
High Country News · Paonia, CO · 2024
General & Unrestricted
- $2,000
Rappahannock League for Environmental Protection I · Washington, VA · 2024
General & Unrestricted
- $2,000
Home Energy Efficiency Team · Cambridge, MA · 2022
General & Unrestricted
- $2,000
Virginia Organizing · Charlottesville, VA · 2022
Hungarian Organizing Training
- $1,600
High Country Conservation Advocates · Crested Butte, CO · 2022
General & Unrestricted
- $1,500
Colorado Plateau Foundation · Flagstaff, AZ · 2024
General & Unrestricted
- $1,500
Cultivando · Eastlake, CO · 2024
General & Unrestricted
- $1,500
Home Energy Efficiency Team · Boston, MA · 2024
General & Unrestricted
- $1,500
New Era Colorado Foundation · Denver, CO · 2024
General & Unrestricted
- $1,500
Conservation Colorado Education Fund · Denver, CO · 2023
General & Unrestricted
- $1,500
High Country News · Paonia, CO · 2023
General & Unrestricted
- $1,500
Home Energy Efficiency Team · Boston, MA · 2023
General & Unrestricted
- $1,500
New Era Colorado Foundation · Denver, CO · 2023
General & Unrestricted
Who else funds this kind of work
Same state
- Shelby Cullom Davis Charitable Fund342 grants · $394.8M
- Longwood Foundation329 grants · $152.1M
- American Gift Fund4,670 grants · $227.2M
Similar purposes
- Silicon Valley Community Foundation10,471 grants · $10.10B
- The Robert Wood Johnson Foundation13,555 grants · $2.27B
- Bill & Melinda Gates Foundation13,441 grants · $18.24B
Similar grant size
- The Ayco Charitable Foundation15,303 grants · $2.05B
- Paypal Charitable Giving Fund32,081 grants · $1.40B
- Seattle Foundation14,012 grants · $457.3M
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.