· Private foundation
Duncan Louis Stewart 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 you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2018–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k2 grants · $10k
- $10k–50k1 grant · $15k
- $50k–250k1 grant · $100k
| Recipient | Amount |
|---|---|
| Individual grant recipient | $100,000 |
| CHARITIES AID FOUNDATION AMERICAN DONOR FUND | $15,000 |
| FRIENDS OF THE ENVIRONMENT | $5,000 |
| WISCONSIN'S GREEN FIRE | $5,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your US giving — 48% of grant dollars ($296k). The need read here covers only this US portion; the 52% that went abroad ($326k) is mapped below.
Dollar for dollar, your grants (FY18–25) land where the poverty rate runs at 13%, against an area that typically sits at 8%. 95% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Beyond the US — 52% of all-years giving ($326k)
2 countries, by the recipient’s country on the filing.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving. International giving is mapped by the recipient’s country from the same 990filings; comparable need data isn’t available at that grain.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +93% since the first grant, against +43% for the ones you funded once.
6 repeat relationships — 3 still active in FY2025, 3 since wound down; 1 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, 20% of grant dollars renewed an existing relationship; $100k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- WGWISCONSIN'S GREEN FIRE INCORPORATED5× · 2021–2025 · $30k · revenue +58%
WILD SALMON CENTER2× · 2020–2021 · $20k · revenue +166%- JGJANE GOODALL INSTITUTE FOR WILDLIFE RESEARCH EDUCATION AND CONSERVATION4× · 2018–2022 · $12k · revenue +93%
Funded once
WORLD WILDLIFE FUND INCgraduatedone grant, 2018 · $100k · revenue +43%- CNCABLE NATURAL HISTORY MUSEUM INCone grant, 2020 · $10k · revenue -31%
- TATHE AMERICAN FRIENDS OF WINCHESTER COLLEGE INCone grant, 2023 · $7k · revenue +1%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The wisconsin wildlife federation has a dual mission to engage in conservation education and to advocate for sound conservation policy.
To protect endangered species.
Wildlife conservation global, inc. operates the okapi conservation project (ocp) which works in the democratic republic of the congo with the institute in congo for the conservation of nature (iccn) and local communities throughout the…
Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.
Our mission is to protect vital areas of our natural world for the benefit of wildlife, habitats, and people by inspiring collaborative action. Our vision is a world where wildlife and people flourish in healthy ecosystems that sustain us…
Connect conservationists and supporters, deploy resources to the field, provide conservationists with tools and support they need to succeed.
The mission of wildcoast is to conserve coastal and marine ecosystems and address climate change through natural solutions. our staff is dedicated to conserving threatened and endangered coastlines and wildlife in california and mexico.…
Iucn-us fund builds bridges between us donors and iucn by catalyzing, accelerating, funding and promoting iucn's work - conserving nature and natural resources in the united states and throughout the world.
Advance wildlife management and conservation through applied research and education activities.
Ci works to spotlight and secure the critical benefits that nature provides to humanity.
The waterbird society is composed of biologists, researchers, conservationists, students, and others interested in the behavior, ecology, and conservation of waterbirds. the organization is administered by officers and council members…
For reference, the grantee most central to the portfolio’s shape is Wisconsin's Green Fire Incorporated and the most unlike its peers is Conservation Allies. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
8 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 8 of the 11 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds WORLD WILDLIFE FUND INC ↗
- Who funds WISCONSIN'S GREEN FIRE INCORPORATED ↗
- Who funds WILD SALMON CENTER ↗
- Who funds FRIENDS OF THE ENVIRONMENT INC ↗
- Who funds JANE GOODALL INSTITUTE FOR WILDLIFE RESEARCH EDUCATION AND CONSERVATION ↗
- Who funds CABLE NATURAL HISTORY MUSEUM INC ↗
- Who funds THE AMERICAN FRIENDS OF WINCHESTER COLLEGE INC ↗
- Who funds CONSERVATION ALLIES ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a set of overlaps that mostly run through you, not between each other.
Open a dossier: Fidelity Investments Charitable Gift Fund
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Duncan Louis Stewart Foundation Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
- Wild Salmon Center — 49% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to Duncan Louis Stewart Foundation Inc?
Find your warmest path to Duncan Louis Stewart Foundation Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.