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Plinth

· Private foundation

John and Alex Arnold Family

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$74k
Granted FY2024still arriving
26
Grants FY2024still arriving
6
States reached
$26k
Largest
01What you fund
0193% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172024.

Health$210kReligion$70kEducation$66kPhilanthropy$55kHuman Services$41kFood & Nutrition$38kAnimals$27kInternational$16kOther$0
02FY2024 · 26 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2024

  • Under $10k24 grants · $37k
  • $10k–50k2 grants · $37k
$1,000
Median grant
6
States reached
$1.0M
Total assets
Largest grants
RecipientAmount
MERCY HEALTH FOUNDATION$26,000
UNITED WAY OF GREATER OF ST LOUIS$11,000
LADUE CHAPEL PRESBYTERIAN CHURCH$7,525
ST LOUIS ZOO$7,500
ST LOUIS AREA FOODBANK$5,000
SALVATION ARMY ST LOUIS$4,000
WASHINGTON UNIVERSITY$1,500
UNIVERSITY PREP PUMA FUND$1,250
CLAYTON COMMUNITY FOUNDATION$1,000
GIRL INC$1,000
NORTH PARK ELEMENTARY SCHOOL$1,000
Individual grant recipient$1,000
DARTMOUTH ALUMNI FUND$1,000
ST LOUIS COUNTY PUBLIC LIBRARY FOUN$1,000
OPPORTUNITY INTERNATIONAL$750
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:

Your human-services grants (FY17–21, $12k) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 55% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%HOME SWEET HOME: $250 → 11%PEDAL THE CAUSE: $515 → 21%GATEWAY REGION YMCA: $2k → 21%GATEWAY REGION YMCA: $2k → 21%GATEWAY REGION YMCA: $2k → 21%AMERICAN RED CROSS: $5k → 11%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.

Which US states your grants reach

NH
WA
IL
NY
OH
MO
MD
DC

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 edge
repeat funding

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.

95%of every dollar goes to organizations you’ve funded before.
$532k · 47 repeat orgs$31k to everyone else

47 repeat relationships — 24 still active in FY2024, 23 since wound down; 1 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

47
26

Total granted

$532k
$31k

Median revenue growth · since first grant

+37%
+51%

Still filing today

49%
54%

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $240 went to new ones.

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

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

’17’18’19’20’21’22’23’24
EducationHealthHuman ServicesArts & CulturePhilanthropyEnvironmentOther

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

  • SL
    ST LOUIS AREA FOOD BANK INC
    8× · 2017–2024 · $38k · revenue +17%
  • NATIONAL PARKS CONSERVATION ASSOCIATION
    8× · 2017–2024 · $11k · revenue +51%
  • WASHINGTON UNIVERSITY
    6× · 2019–2024 · $10k · revenue +44%

Funded once

  • LC
    LADUE CHAPEL PRESBYTERIAN CAPITAL
    one grant, 2017 · $11k
  • AN
    American National Red Cross & Its Constituent Chapters and Branchesgraduated
    one grant, 2017 · $5k · revenue +46%
  • D
    DONORSCHOOSEORG
    one grant, 2021 · $2k · revenue -5%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your 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
Teach St Louis

Founded In 2018, Teach St. Louis (formerly St. Louis Teacher Residency) launched to improve teacher quality and retention in St. Louis, a city where 40% of new teachers exit the classroom in their first three years. Teach St. Louis…

Education
2
University of Chicago Medical Center

Our mission at the university of chicago medicine is to provide superior health care through rigorous research, innovative education, and comprehensive care and healing. in partnership with our colleagues, we pursue life-changing…

Health
3
Saint Xavier University

Saint xavier university, a catholic institution inspired by the heritage of the sisters of mercy, educates persons to search for truth, think critically, communicate effectively and serve wisely and compassionately in support of human…

Education
4
St Lukes Episcopal-Presbyterian Hospitals

We are dedicated to providing exceptional care to every patient, every time.

Health
5
Webster University

Founded in 1915, webster is a private non-profit and global university that is committed to delivering high-quality learning experiences that transform students for global citizenship and individual excellence.

Education
6
DePauw University

Depauw university develops leaders the world needs through an uncommon commitment to the liberal arts. depauw's diverse and inclusive learning and living experience, distinctive in its rigorous intellectual engagement and its global and…

Education
7
St Catherine University

We educate women to lead and influence. we educate at all degree levels through valuing and integrating the liberal arts and professional education within the catholic intellectual tradition, see schedule oemphasizing scholarly inquiry and…

Education
8
The George Washington University

The mission of the george washington university (gw) is to educate individuals in liberal arts, languages, sciences, learned professions, and other courses and subjects of study, and to conduct scholarly research and publish the findings…

Education
9
Bionexus Kc

We inspire thinkers from different disciplines to combine their efforts for a common purpose: healthcare innovation.(continued on schedule o)from bioinformatics to cancer research and beyond, we stimulate collaboration and help bring…

Science & Tech
10
Chicago Public Education Fund

The chicago public education fund (the fund) is a nonprofit organization that improves public schools in chicago by investing in the talented educators who lead them.

Education
11
Truman Medical Center Incorporated

University health is an academic health center providing accessible, state-of-the-art quality healthcare to our community regardless of the ability to pay.

Health
12
Central Indiana Corporate Partnership Inc

Central indiana corporate partnership (cicp) is an alliance of indiana's business and research university leaders coming together to foster long-term prosperity for the region. cicp's mission is to transform the economy of indiana in order…

Community Improvement

For reference, the grantee most central to the portfolio’s shape is Characterplus and the most unlike its peers is Rx Outreach Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 44 years old; the field is 18. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number20%0%<5yr14%0%5–10yr19%20%10–20yr18%18%20–35yr15%20%35–55yr15%43%55yr+
THE FIELDby orgYOUR MONEYby value20%0%<5yr14%0%5–10yr19%8%10–20yr18%6%20–35yr15%34%35–55yr15%52%55yr+

The field is 20% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 14% of the field you don’t fund.

orgs you fund
0.0%0/42
the rest of the field
14%
8,572/61,808

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

40 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 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 40 of the 76 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)
10
Early backer (in before they grew)
40/40
Grantees still filing
32/40
Grew since you first funded

Where your money sits — by cause, then by grantee

MERCY HEALTH FOUNDATION — $184,800 · OtherMERCY HEALTH FOUNDATIONLADUE CHAPEL PRESBYTERIAN CHURCH — $58,425 · OtherLADUE CHAPEL PRESBYTERIAN CHURCHST LOUIS AREA FOOD BANK INC — $38,000 · OtherST LOUIS AREA FOOD BANK INCST LOUIS ZOO — $20,500 · OtherSALVATION ARMY ST LOUIS — $16,000 · Other+46 more — $119,178 · Other+46 moreUNITED WAY OF GREATER ST LOUIS INC — $52,500 · PhilanthropyUNITED WAY…+1 more — $500 · PhilanthropyWASHINGTON UNIVERSITY — $9,750 · EducationNORTH PARK ELEMENTARY SCHOOL ASSOCIATION — $7,500 · EducationTrustees of Dartmouth College — $3,000 · EducationCHARACTERPLUS — $2,750 · EducationDONORSCHOOSEORG — $1,897 · EducationLOYOLA ACADEMY OF ST LOUIS — $1,000 · Education+3 more — $1,500 · EducationMEDECINS SANS FRONTIERES USA INC — $8,500 · InternationalOPPORTUNITY INTERNATIONAL INC D/B/A OPPORTUNITY INTERNATIONAL-US — $7,250 · InternationalLOVEU2PIECES — $6,810 · HealthINSTITUTE FOR RESEARCH AND EDUCATION IN FAMILY MEDICINE — $3,000 · HealthRX Outreach Inc — $1,500 · HealthAmerican Heart Association Inc — $1,000 · HealthINTERFAITH RESIDENCE D/B/A DOORWAYS — $500 · Health+1 more — $250 · HealthGATEWAY REGION YOUNG MEN'S CHRISTIAN ASSOCIATION — $6,000 · Human ServicesAmerican National Red Cross & Its Constituent Chapters and Branches — $5,000 · Human ServicesPEDAL THE CAUSE — $515 · Human Services+1 more — $250 · Human ServicesNATIONAL PARKS CONSERVATION ASSOCIATION — $10,500 · EnvironmentMISSOURI BOTANICAL GARDEN BOARD OF TRUSTEES — $560 · Environment
Other$436,903Philanthropy$53,000Education$27,397International$15,750Health$13,060Human Services$11,765Environment$11,060

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetUNITED WAY OF GREATER ST LOUIS INC — $52,500 over 8y, 0.0% of budgetST LOUIS AREA FOOD BANK INC — $38,000 over 8y, 0.0% of budgetNATIONAL PARKS CONSERVATION ASSOCIATION — $10,500 over 8y, 0.0% of budgetWASHINGTON UNIVERSITY — $9,750 over 6y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC — $8,500 over 8y, 0.0% of budgetNORTH PARK ELEMENTARY SCHOOL ASSOCIATION — $7,500 over 7y, 0.0% of budgetOPPORTUNITY INTERNATIONAL INC D/B/A OPPORTUNITY INTERNATIONAL-US — $7,250 over 6y, 0.0% of budgetLOVEU2PIECES — $6,810 over 7y, 1.7% of budgetGATEWAY REGION YOUNG MEN'S CHRISTIAN ASSOCIATION — $6,000 over 3y, 0.0% of budgetWildlife Conservation Society — $5,000 over 4y, 0.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches — $5,000 over 1y, 0.0% of budgetINSTITUTE FOR RESEARCH AND EDUCATION IN FAMILY MEDICINE — $3,000 over 3y, 0.1% of budgetTrustees of Dartmouth College — $3,000 over 2y, 0.0% of budgetClayton Community Foundation — $3,000 over 3y, 0.3% of budgetCHARACTERPLUS — $2,750 over 6y, 0.1% of budgetKids Above All Illinois — $2,000 over 2y, 0.0% of budgetDONORSCHOOSEORG — $1,897 over 1y, 0.0% of budgetRX Outreach Inc — $1,500 over 2y, 0.0% of budgetOUR LITTLE HAVEN — $1,500 over 2y, 0.0% of budgetMISSOURI HISTORICAL SOCIETY — $1,385 over 8y, 0.0% of budgetGATEWAY ARCH PARK FOUNDATION — $1,250 over 2y, 0.0% of budgetAmerican Heart Association Inc — $1,000 over 2y, 0.0% of budgetLOYOLA ACADEMY OF ST LOUIS — $1,000 over 2y, 0.0% of budgetMISSOURI BOTANICAL GARDEN BOARD OF TRUSTEES — $560 over 7y, 0.0% of budgetPEDAL THE CAUSE — $515 over 1y, 0.0% of budgetINDEPENDENCE CENTER — $500 over 1y, 0.0% of budgetINTERFAITH RESIDENCE D/B/A DOORWAYS — $500 over 1y, 0.0% of budgetMDRC — $500 over 2y, 0.0% of budgetBowling Green State University Foundation Inc — $500 over 1y, 0.0% of budgetMARIAN MIDDLE SCHOOL — $500 over 1y, 0.0% of budgetMERCY CONFERENCE AND RETREAT CENTER — $500 over 2y, 0.0% of budgetNATIONAL GEOGRAPHIC SOCIETY — $500 over 1y, 0.0% of budgetSTS JOACHIM AND ANN CARE SERVICE — $250 over 1y, 0.0% of budgetPATH WITH ART — $250 over 1y, 0.0% of budgetHOME SWEET HOME — $250 over 1y, 0.0% of budgetSTARKLOFF DISABILITY INSTITUTE — $250 over 1y, 0.0% of budgetThe Hap Foundation Inc (F/K/A Journeycare Foundation) — $250 over 1y, 0.0% of budgetST LOUIS REGIONAL PUBLIC MEDIA INC — $240 over 1y, 0.0% of budgetFOSTER CARE COALITION OF GREATER ST LOUIS — $178 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.

  • Who funds UNITED WAY OF GREATER ST LOUIS INC
  • Who funds ST LOUIS AREA FOOD BANK INC
  • Who funds NATIONAL PARKS CONSERVATION ASSOCIATION
  • Who funds WASHINGTON UNIVERSITY
  • Who funds MEDECINS SANS FRONTIERES USA INC
  • Who funds NORTH PARK ELEMENTARY SCHOOL ASSOCIATION
  • Who funds OPPORTUNITY INTERNATIONAL INC D/B/A OPPORTUNITY INTERNATIONAL-US
  • Who funds LOVEU2PIECES
  • Who funds GATEWAY REGION YOUNG MEN'S CHRISTIAN ASSOCIATION
  • Who funds Wildlife Conservation Society
  • Who funds American National Red Cross & Its Constituent Chapters and Branches
  • Who funds INSTITUTE FOR RESEARCH AND EDUCATION IN FAMILY MEDICINE
  • Who funds Trustees of Dartmouth College
  • Who funds Clayton Community Foundation
  • Who funds CHARACTERPLUS
  • Who funds Kids Above All Illinois
  • Who funds DONORSCHOOSEORG
  • Who funds RX Outreach Inc

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 tightly interlocked camp — most of these funders back each other's grantees too.

St Louis Community Foundation IncMO30.8× affinity13 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: St Louis Community Foundation Inc · St Louis Community Foundation · United Way of Greater St Louis Inc · World Wide Technology Foundation · Commerce Bancshares Foundation · Employees Community Fund of the Boeing Company · MHM Support Services · Edward Jones Foundation · Centene Foundation · Graybar Foundation · Enterprise Holdings Foundation · Jordan Mary R & Ettie a Charitable

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 John and Alex Arnold Family 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%23%45%68%90%share of the org’s income from government
    no gov moneyreceives it· size = income
    0get no government money at all
    9report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–90%
    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 76 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 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    More from the funding graph