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Plinth

· Private foundation

Edmund B Thornton Foundation

Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$2k
Granted FY2026still arriving
4
Grants FY2026still arriving
1
States reached
$500
Largest
01What you fund
0186% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20212026.

Arts & Culture$27kHousing & Shelter$800Environment$241Food & Nutrition$50Other$0
02FY2026 · 4 grants

Where the money goes

Your grants by size, and where they go.

$500
Median grant
1
States reached
$23k
Total assets
Largest grants
RecipientAmount
ILLINOIS VALLEY INTERTRIBAL$500
DICKINSON HOUSE FOUNDATION$500
MENDOTA MUSEUM & HISTORICAL SOCIETY$500
OTTAWA PADS SHELTER$300
02The need
03

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.

show:

Dollar for dollar, your grants (FY21–26) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 100% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%NATIONAL TRUST FOR HISTORIC PRESERVATION: $100 → 14%ILLINOIS AUDUBON SOCIETY: $25 → 11%THE TRUST FOR PUBLIC LAND: $100 → 14%OTTAWA PADS SHELTER: $300 → 15%UNIVERSITY OF IL EXTENSION: $50 → 19%THE NATURE CONSERVANCY: $75 → 7%WORLD WILDLIFE FUND: $16 → 14%DICKINSON HOUSE FOUNDATION: $500 → 15%NATIONAL PARKS CONSERVATION ASSOC: $25 → 14%LA SALLE COUNTY HISTORICAL SOCIETY: $26k → 15%ILLINOIS VALLEY PADS: $100 → 15%ILLINOIS VALLEY INTERTRIBAL: $500 → 15%ILLINOIS VALLEY PADS: $50 → 15%MENDOTA MUSEUM & HISTORICAL SOCIETY: $500 → 15%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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.

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.

03Your field

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.

1
National Council for Preservation Education
2
National Audubon Society Inc

We work towards a future where birds thrive across the americas because audubon is a powerful, diverse, and ever-growing force for conservation. (continued on schedule o).

Environment
3
Massachusetts Audubon Society Inc

To protect the nature of massachusetts for people and for wildlife through education, land conservation, advocacy, scientific research, and habitat stewardship/restoration.

Environment
4
The Wildlife Society

The wildlife society's mission is to inspire, empower, and enable wildlife professionals to sustain wildlife populations and habitats through science-based management and conservation.

Animals
5
Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International
6
Huron Pines Resource Conservation & Development Council Inc

It is our mission at huron pines to conserve and enhance northern michigan's natural resources to ensure healthy water, protected places and vibrant communities. for alomst 50 years, our work across the forests, lakes and streams of…

Environment
7
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
8
Washington Forest Law Center

Dedicated to protecting the world's natural environment on behalf of the public by serving as a public interest law firm. refer to schedule o, part iii, line 4a, for list of litigated cases or advocacy work.

9
American Humane Association

Founded in 1877, american humane association, dba american humane society (american humane) is committed to ensuring the safety, welfare and well-being of animals. our leadership programs are first to serve in promoting and nurturing the…

Animals
10
Conservation International Foundation

Ci works to spotlight and secure the critical benefits that nature provides to humanity.

Environment
11
Heartlands Conservancy

The mission of heartlands conservancy is to empower and colaborate with the people of southern illinois to advance and protect the health of our distinctive communities and nationally significant natural and cultural resources.

Environment
12
Nature Collective

Nature collective's mission is to drive a passion for nature for all. we think inclusively and diversely when serving those devoid of nature those who remember nature and want to connect back to it and those who have an affinity with…

Environment

For reference, the grantee most central to the portfolio’s shape is National Parks Conservation Association and the most unlike its peers is Mendota Museum & Historical Society. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

04the grantee network

8 grantees tracked through their own filings, 2017–2026.

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 20172026, not grant rows in a single year — so this will not match the grant count on the cover. 8 of the 13 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.

0
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
8/8
Grantees still filing
6/8
Grew since you first funded

Where your money sits — by cause, then by grantee

LASALLE COUNTY HISTORICAL SOCIETY — $26,000 · OtherLASALLE COUNTY HISTORICAL SOCIETY+6 more — $1,575 · Other+6 moreMendota Museum & Historical Society — $500 · Arts & CultureNATIONAL TRUST FOR HISTORIC PRESERVATION IN THE UNITED STATES — $100 · Arts & CultureTHE TRUST FOR PUBLIC LAND — $100 · EnvironmentNATIONAL PARKS CONSERVATION ASSOCIATION — $25 · EnvironmentILLINOIS AUDUBON SOCIETY — $25 · EnvironmentWORLD WILDLIFE FUND INC — $16 · Environment
Other$27,575Arts & Culture$600Environment$166

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100Mgrantee revenue →↑ your share of their budgetNATIONAL TRUST FOR HISTORIC PRESERVATION IN THE UNITED STATES — $100 over 1y, 0.0% of budgetTHE TRUST FOR PUBLIC LAND — $100 over 1y, 0.0% of budgetTHE NATURE CONSERVANCY — $75 over 1y, 0.0% of budgetNATIONAL PARKS CONSERVATION ASSOCIATION — $25 over 1y, 0.0% of budgetILLINOIS AUDUBON SOCIETY — $25 over 1y, 0.0% of budgetWORLD WILDLIFE FUND INC — $16 over 1y, 0.0% of budget
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.

Government reliance of your grantees

Every dot is one organization Edmund B Thornton Foundation 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 or a single department — and drag the year to watch it move.

2024
202122232425
no gov · 00%0%1%3%5%your share of their income ↑0%6%13%19%25%share of the org’s income from government
    no gov moneyreceives it· size = income
    0get no government money at all
    2report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–25%
    typical government reliance, FY2025

    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.

    On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 13 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears. How we build these →

    Generated from your IRS Form 990-PF e-file return for fiscal year 2026, released 2026. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

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