Skip to content

· Private foundation

Charles J & Elizabeth R Koch Foundation

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.

$135k
Granted FY2025still arriving
19
Grants FY2025still arriving
7
States reached
$43k
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$1.0MArts & Culture$468kHealth$200kHuman Services$37kYouth Development$30kEnvironment$6kPhilanthropy$2kPublic Safety & Disaster$2kOther$0
02FY2025 · 19 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k13 grants · $20k
  • $10k–50k6 grants · $115k
$1,000
Median grant
7
States reached
$891k
Total assets
Largest grants
RecipientAmount
CLEVELAND CLINIC FOUNDATION$43,300
SOCIETY OF THE FOUR ARTS$25,000
ST THOMAS MORE PLAY GROUP$15,000
MALTA AMERICAN ASSOCIATION$11,950
PECONIC BAY MEDICAL CENTER FOUNDATION$10,000
FLAGLER MUSEUM$10,000
JOHN HOPKINS UNIVERSITY$5,000
CATHOLIC CHARITIES OF THE DIOCESE OF PALM BEACH$3,500
LAWRENCEVILLE SCHOOL$2,000
MATHER HOMESTEAD FOUNDATION$1,000
MUSEUM OF DARIEN$1,000
DARIEN LIBRARY$1,000
VANDERBILT UNIVERSITY$1,000
CLEVELAND ORCHESTRA$1,000
LEDGE LIGHTHOUSE FOUNDATION$1,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY24–25, $7k) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%CATHOLIC CHARITIES OF THE DIOCESE OF PALM BEACH: $4k → 11%CATHOLIC CHARITIES OF THE DIOCESE OF PALM BEACH: $4k → 11%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

NY
MA
IA
OH
NJ
CT
VA
MD
TN
DC
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

98%of every dollar goes to organizations it has funded before.
$1.7M · 30 repeat orgs$34k to everyone else

30 repeat relationships: 17 still active in FY2025, 13 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

30
13

Total granted

$1.7M
$23k

Median revenue growth · since first grant

+45%
+46%

Still filing today

57%
46%

New vs renewed · share of each year

In FY2025, 92% of grant dollars renewed an existing relationship; $11k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24’25
EducationArts & CulturePhilanthropyHuman ServicesEnvironmentInternationalOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • CASE WESTERN RESERVE UNIVERSITY
    7× · 2017–2023 · $820k · revenue +50%
  • TS
    The Society of the Four Arts Inc
    3× · 2023–2025 · $308k · revenue +539%
  • TM
    The Musical Arts Association
    8× · 2017–2025 · $73k · revenue +45%

Funded once

  • PO
    PATRONS OF THE ARTS VATICAN MUSEUMS
    one grant, 2024 · $10k
  • KS
    KENT SCHOOL
    one grant, 2021 · $2k · revenue +8%
  • MO
    Metropolitan Opera
    one grant, 2018 · $2k
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.

04Its field

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.

1
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
2
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
3
Trustees of Dartmouth College

Dartmouth College educates the most promising students and prepares them for a lifetime of learning and of responsible leadership, through a faculty dedicated to teaching and the creation of knowledge.

Education
4
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
5
Dickinson College

Dickinson college provides a useful, innovative and interdisciplinary education in the liberal arts and sciences to prepare students to lead rich and fulfilling lives of engaged global citizenship

Education
6
Seton Hall University

Seton hall university is a catholic institution of higher education

—
7
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
8
The Corporation of Saint Mary's College Notre Dame

The corporation of saint mary's college, notre dame (saint mary's) is a catholic, residential, women's, liberal arts college offering undergraduate degrees and co-educational graduate programs. (continued in schedule o)

Education
9
President and Fellows of Harvard College

Undergraduate, graduate, and professional education and research across a broad array of academic domains.

Education
10
Williams College

Williams College strives to achieve educational excellence by fostering a community of learning in collaboration with students, faculty, staff, devoted alumni and parents.

Education
11
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
12
University of Miami

See Form 990, Part I, Line 1, Description of Organization Mission.

Education
How this is measured
The grantee most central to the portfolio’s shape is Trustees of the Lawrenceville School; the most unlike its peers is The Musical Arts Association. 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

23 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. 23 of the 45 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.

1
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
23/23
Grantees still filing
19/23
Grew since first funded

Where the money sits, by cause and then by grantee

CASE WESTERN RESERVE UNIVERSITY: $820,000 · EducationCASE WESTERN RESERVE UNIVERSITYURSULINE COLLEGE: $45,000 · EducationST THOMAS MORE PLAY GROUP INC: $32,500 · Education+6 more: $53,500 · Education+6 moreThe Society of the Four Arts Inc: $307,500 · Arts & CultureThe Society of the Four …The Musical Arts Association: $73,460 · Arts & CultureThe Musical Arts Associa…+3 more: $5,200 · Arts & CultureCLEVELAND CLINIC FOUNDATION: $118,300 · OtherCLEVELAND CLINIC FOUNDA…JULIE BILLIART SCHOOL: $60,000 · OtherJULIE BILLIART SCHOOLMALTA AMERICAN ASSOCIATION: $51,950 · OtherMALTA AMERICAN ASSOCIAT…Individual grant recipient: $30,000 · OtherIndividual grant recipi…Salvation Army: $30,000 · OtherSalvation ArmyJOHN HOPKINS UNIVERSITY: $19,362 · OtherPECONIC BAY MEDICAL CENTER FOUNDATION: $12,500 · Other+17 more: $43,850 · Other+17 moreSMILES WITH STYLE INC: $54,200 · PhilanthropyTHE COMMUNITY FUND OF DARIEN: $2,000 · PhilanthropyREGINA HEALTH CENTER: $10,000 · HealthCATHOLIC CHARITIES OF THE DIOCESE OF PALM BEACH INC: $7,000 · Human ServicesAmerican National Red Cross & Its Constituent Chapters and Branches: $500 · Human ServicesMADISON SQUARE PARK CONSERVANCY INC: $1,500 · EnvironmentPhysicians For Peace: $1,500 · International
Education$951,000Arts & Culture$386,160Other$365,962Philanthropy$56,200Health$10,000Human Services$7,500Environment$1,500International$1,500

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCASE WESTERN RESERVE UNIVERSITY: $820,000 over 7y, 0.1% of budgetThe Society of the Four Arts Inc: $307,500 over 3y, 1.4% of budgetThe Musical Arts Association: $73,460 over 8y, 0.0% of budgetSMILES WITH STYLE INC: $54,200 over 7y, 27% of budgetURSULINE COLLEGE: $45,000 over 5y, 0.1% of budgetST THOMAS MORE PLAY GROUP INC: $32,500 over 3y, 0.4% of budgetUNIVERSITY SCHOOL: $29,500 over 7y, 0.0% of budgetVanderbilt University: $13,500 over 6y, 0.0% of budgetREGINA HEALTH CENTER: $10,000 over 2y, 0.1% of budgetCATHOLIC CHARITIES OF THE DIOCESE OF PALM BEACH INC: $7,000 over 2y, 0.1% of budgetTRUSTEES OF THE LAWRENCEVILLE SCHOOL: $3,500 over 4y, 0.0% of budgetTRUSTEES OF BOSTON COLLEGE: $2,500 over 3y, 0.0% of budgetDARIEN LIBRARY INC: $2,500 over 3y, 0.0% of budgetMATHER HOMESTEAD FOUNDATION: $2,000 over 2y, 0.3% of budgetTHE COMMUNITY FUND OF DARIEN: $2,000 over 2y, 0.1% of budgetGREENS LEDGE LIGHT PRESERVATION SOCIETY INC: $2,000 over 2y, 0.2% of budgetKENT SCHOOL: $2,000 over 1y, 0.0% of budgetMADISON SQUARE PARK CONSERVANCY INC: $1,500 over 2y, 0.0% of budgetPhysicians For Peace: $1,500 over 1y, 0.3% of budgetWHITNEY MUSEUM OF AMERICAN ART: $1,200 over 1y, 0.0% of budgetDARIEN FIRE DEPARTMENT INC: $1,000 over 1y, 0.3% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $500 over 1y, 0.0% of budgetCHATHAM HISTORICAL SOCIETY INC: $500 over 1y, 0.2% of budget
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 CASE WESTERN RESERVE UNIVERSITY ↗
  • Who funds The Society of the Four Arts Inc ↗
  • Who funds The Musical Arts Association ↗
  • Who funds SMILES WITH STYLE INC ↗
  • Who funds URSULINE COLLEGE ↗
  • Who funds ST THOMAS MORE PLAY GROUP INC ↗
  • Who funds UNIVERSITY SCHOOL ↗
  • Who funds Vanderbilt University ↗
  • Who funds REGINA HEALTH CENTER ↗
  • Who funds CATHOLIC CHARITIES OF THE DIOCESE OF PALM BEACH INC ↗
  • Who funds TRUSTEES OF THE LAWRENCEVILLE SCHOOL ↗
  • Who funds TRUSTEES OF BOSTON COLLEGE ↗
  • Who funds DARIEN LIBRARY INC ↗
  • Who funds MATHER HOMESTEAD FOUNDATION ↗
  • Who funds THE COMMUNITY FUND OF DARIEN ↗
  • Who funds GREENS LEDGE LIGHT PRESERVATION SOCIETY INC ↗
  • Who funds KENT SCHOOL ↗
  • Who funds MADISON SQUARE PARK CONSERVANCY INC ↗
  • Who funds Physicians For Peace ↗
  • Who funds WHITNEY MUSEUM OF AMERICAN ART ↗
  • Who funds DARIEN FIRE DEPARTMENT 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.

The Fedeli Family Charitable FoundationOH13.6× affinity4 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Fedeli Family Charitable Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · American Endowment Foundation · Vanguard Charitable Endowment Program · The Pfizer Foundation Inc · Donor Advised Charitable Giving Inc · The Bank of America Charitable Foundation Inc · Fidelity Investments Charitable Gift Fund · American Online Giving Foundation Inc · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Charles J & Elizabeth R Koch Foundation funds: left to right is the share of its income from government, bottom to top the share from Charles J & Elizabeth R Koch Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%2%8%17%30%funder's share of their income ↑0%6%13%19%25%share of the org’s income from government →median 4%
  • Catholic Charities of the Diocese of Palm Beach Inc: 12% of income from government
  • The Community Fund of Darien: 9% of income from government
  • Mather Homestead Foundation: 4% of income from government
  • Trustees of Boston College: 3% of income from government
  • Chatham Historical Society Inc: 0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
7report 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, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Charles J & Elizabeth R Koch Foundation?

Find your warmest path to Charles J & Elizabeth R Koch Foundation 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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 45 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its 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.

Generated from the IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Charles J & Elizabeth R Koch’s filings →

More from the funding graph