· Private foundation
Stems Macarthur Foundation Inc
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- Under $10k9 grants · $19k
- $10k–50k1 grant · $20k
| Recipient | Amount |
|---|---|
| NATIONAL MUSEUM OF WOMEN IN ARTS | $20,000 |
| PROPUBLICA | $6,000 |
| UNICEF USA | $5,000 |
| DEMOCRACY NOW | $2,000 |
| INST FOR SUSTAINABLE COMMUNITIES | $1,200 |
| AMERICAN INDIAN COLLEGE FUND | $1,000 |
| WORLD CENTRAL KITCHEN | $1,000 |
| HABITAT FOR HUMANITY | $1,000 |
| UC BERKELY FOUNDATION | $1,000 |
| CHURCH OF THE GOOD SHEPARD | $1,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY18–18, $1k) land where the poverty rate runs at 17%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
Grantees it renews have grown median revenue +47% since the first grant, against +37% for those funded once.
15 repeat relationships: 8 still active in FY2025, 7 since wound down; 2 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 95% of grant dollars renewed an existing relationship; $2k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
UNITED STATES FUND FOR UNICEF4× · 2018–2025 · $30k · revenue +47%
United States Association for UNHCR4× · 2018–2021 · $27k · revenue +51%- HFHabitat for Humanity3× · 2023–2025 · $16k · revenue +30%
Funded once
- NANATIVE AMERICAN RIGHTS FUND INCgraduatedone grant, 2018 · $5k · revenue +86%
- PFPets for Vets Incgraduatedone grant, 2017 · $5k · revenue +67%
- IGIndividual grant recipientone grant, 2017 · $3k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
The purpose of rainforest foundation us is to support indigenous peoples and forest communities in their efforts to secure their lands, protect their environment, and uphold their rights.
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
Nia tero works alongside indigenous peoples to secure their guardianship of vital ecosystems. indigenous peoples are guardians of earth.(see schedule o)
The national forest foundation (nff), chartered by congress, turns america's love of nature into meaningful action for 193-million acre national forest system through on the ground program work and grant making activities, and accepts and…
Wri is committed to creating change that improves people's lives and ensures the natural world can thrive. (see schedule o)wri's bold vision requires a formula for success we call "count it. change it. scale it.": - count it: our work is…
Wmf is the leading independent organization devoted to safeguarding the world's most treasured places to enrich people's lives and build mutual understanding across cultures and communities. the organization is headquartered in new york…
We safeguard the earth: its people, its plants and animals, and (see schedule o) the natural systems on which all life depends. we work to restore the integrity of the elements that sustain life - air, land, and water - to defend…
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
Rri's mission is to support local communities and indigenous peoples' struggles against poverty and marginalization by promoting greater global commitment and action towards policy, market, and legal reforms that secure their rights to…
The council on foreign relations (cfr) is an independent, nonpartisan membership organization, think tank, and publisher dedicated to being a resource for its members, government officials, business executives, journalists, educators and…
Organization mission the observer research foundation america orf america is an independent, non-partisan, and nonprofit organization in washington dc dedicated to addressing policy challenges facing the united states, india, and their…
Ocean conservancy unites science, people, and policy to protect our ocean, today and for generations to come.
How this is measured
22 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 22 of the 40 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds THE NATIONAL MUSEUM OF WOMEN IN THE ARTS ↗
- Who funds UNITED STATES FUND FOR UNICEF ↗
- Who funds United States Association for UNHCR ↗
- Who funds Habitat for Humanity ↗
- Who funds DEMOCRACY NOW PRODUCTIONS INC ↗
- Who funds PRO PUBLICA INC ↗
- Who funds HONOR THE EARTH ↗
- Who funds INSTITUTE FOR SUSTAINABLE COMMUNITIES ↗
- Who funds Electronic Frontier Foundation Inc ↗
- Who funds CORPORATION OF THE FINE ARTS MUSEUMS ↗
- Who funds NATIVE AMERICAN RIGHTS FUND INC ↗
- Who funds AMERICAN INDIAN COLLEGE FUND ↗
- Who funds Pets for Vets Inc ↗
- Who funds NATIONAL WOMEN'S HISTORY MUSEUM ↗
- Who funds Ancestral Knowledge Inc ↗
- Who funds Veterans For Peace Inc ↗
- Who funds EPISCOPAL RELIEF AND DEVELOPMENT ↗
- Who funds MEDECINS SANS FRONTIERES USA INC ↗
- Who funds NATIONAL PARK FOUNDATION ↗
- Who funds WORLD WILDLIFE FUND INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization Stems Macarthur Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Stems Macarthur Foundation Inc. Bigger dots raise more.
- Institute for Sustainable Communities: 100% of income from government
How this is measured
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