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Alton 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.

$145k
Granted FY2025still arriving
27
Grants FY2025still arriving
8
States reached
$31k
Largest
01What it funds
0194% classified

What it funded, over time

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

Health$725kEducation$219kEnvironment$141kCrime & Legal$98kArts & Culture$46kPublic Safety & Disaster$30kHuman Services$18kAnimals$10kOther$0
02FY2025 · 27 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k20 grants · $39k
  • $10k–50k7 grants · $106k
$2,000
Median grant
8
States reached
$1.3M
Total assets
Largest grants
RecipientAmount
MAYO CLINIC$31,400
MAYO CLINIC$20,000
ALUMNAE ASSOCIATION OF SMITH COLLEGE$15,000
THE NATURE CONSERVANCY$10,000
GREAT RIVER CHILDREN'S MUSEUM$10,000
ALLINA HEALTH FOUNDATION$10,000
MITCHELL HAMLINE SCHOOL OF LAW$10,000
PALM BEACH DAY ACADEMY$5,000
CLEVELAND CLINIC FLORIDA$5,000
LA POINTE COMMUNITY CLINIC$5,000
Individual grant recipient$5,000
DUCKS UNLIMITED$2,000
MINNESOTA LAND TRUST$2,000
Individual grant recipient$2,000
GUNFLINT TRAIL VOLUNTEER FIRE DEPARTMENT$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 (FY17–23, $8k) land where the poverty rate runs at 5%, against an area that typically sits at 10%. 13% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%GUADALUPE CENTER: $1k → 10%MOUNT OLIVET ROLLING ACRES INC: $1k → 5%MOUNT OLIVET ROLLING ACRES: $1k → 5%MOUNT OLIVET ROLLING ACRES INC: $1k → 5%MOUNT OLIVET ROLLING ACRES INC: $1k → 5%MOUNT OLIVET ROLLING ACRES: $1k → 5%MOUNT OLIVET ROLLING ACRES: $1k → 5%MOUNT OLIVET ROLLING ACRES: $1k → 5%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

MN
WI
NY
MA
OR
OH
NJ
CA
CO
VA
MD
TN
OK
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.

91%of every dollar goes to organizations it has funded before.
$935k · 41 repeat orgs$89k to everyone else

41 repeat relationships: 23 still active in FY2025, 18 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

41
18

Total granted

$935k
$87k

Median revenue growth · since first grant

+39%
+50%

Still filing today

54%
33%

New vs renewed · share of each year

In FY2025, 98% of grant dollars renewed an existing relationship; $2k 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
EducationHealthEnvironmentHuman ServicesArts & CultureEmploymentOther
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

  • MH
    MITCHELL HAMLINE SCHOOL OF LAW
    8× · 2018–2025 · $80k · revenue +23%
  • LP
    LA POINTE COMMUNITY CLINIC INC
    9× · 2017–2025 · $44k · revenue +196%
  • PB
    PALM BEACH DAY ACADEMY INC
    9× · 2017–2025 · $36k · revenue +80%

Funded once

  • MC
    MAYO CLINIC HEALTH SYSTEM-SOUTHWEST WISCONSIN REGION INC
    one grant, 2020 · $50k
  • HU
    HAMLINE UNIVERSITY LAW SCHOOL
    one grant, 2017 · $10k
  • BF
    BRIGHTFOCUS FOUNDATIONgraduated
    one grant, 2020 · $5k · revenue +70%
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
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
2
Minnesota Medical Association

To be the leading voice of medicine to make minnesota the healthiest state and the best place to practice.

—
3
Augustana College

Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…

Education
4
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
5
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
6
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
7
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
8
University of Minnesota Foundation Investment Advisors

To provide the highest level of stewardship for university donors through professional management and oversight of the university of minnesota foundation's assets by creating a focused investment environment with clarity of purpose,…

Education
9
Lake Forest College

Provide post-secondary education leading to a baccalaureate degree. Program service expenditures are made in conjunction with the operation of a liberal arts college spread over 107 acres with approximately 63 educational and support…

Education
10
Marietta College

Marietta college (mc) provides a strong foundation for a lifetime of leadership, critical thinking, and problem solving. we achieve this mission by offering undergraduates a contemporary liberal arts education and graduate students an…

Education
11
National Association of College and University Attorneys

To advance the practice of higher education attorneys for the benefit of the institutions they serve.

—
12
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
How this is measured
The grantee most central to the portfolio’s shape is University of Minnesota Foundation; the most unlike its peers is La Pointe Community Clinic Inc. 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

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

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 33 of the 63 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.

0
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
32/33
Grantees still filing
24/33
Grew since first funded

Where the money sits, by cause and then by grantee

ABBOTT NORTHWESTERN HOSPITAL FOUNDATION: $125,000 · OtherABBOTT NORTHWESTERN HOSPITAL FOUNDATIONALTON FUND FOR CANCER RESEARCH - MAYO CLINIC: $100,000 · OtherALTON FUND FOR CANCER RESEARCH - MAYO CLINICNATURE CONSERVANCY: $80,000 · OtherNATURE CONSERVANCYMAYO CLINIC HEALTH SYSTEM-SOUTHWEST WISCONSIN REGION INC: $50,000 · OtherMAYO CLINIC HEALTH SYSTEM-SOUTHWEST WISCONSIN REG…Individual grant recipient: $40,200 · OtherIndividual grant recipientSMITH COLLEGE ALUMNAE FUND: $29,000 · OtherLAPOINTE VOLUNTEER FIRE DEPARTMENT: $24,000 · OtherCLEVELAND CLINIC FLORIDA: $20,000 · OtherCLEVELAND CLINIC: $20,000 · Other+27 more: $98,400 · Other+27 moreMAYO CLINIC: $317,200 · HealthMAYO CLINICLA POINTE COMMUNITY CLINIC INC: $44,000 · HealthLA POINTE COMMUNITY CLINIC INCALLINA HEALTH FOUNDATION: $30,000 · HealthALLINA HEALTH FOUNDATIONLAWYERS CONCERNED FOR LAWYERS: $18,000 · Health+2 more: $14,500 · HealthMITCHELL HAMLINE SCHOOL OF LAW: $80,000 · EducationMITCHELL HAMLINE SCH…Alumnae Association of Smith College: $77,000 · EducationAlumnae Association …PALM BEACH DAY ACADEMY INC: $36,000 · EducationPALM BEACH DAY ACADE…Jacksonville University: $12,000 · EducationPRESIDENT-BOARD OF TRUSTEES SANTA CLARA COLLEGE: $11,000 · EducationORONO FOUNDATION FOR EDUCATION: $9,000 · Education+8 more: $14,200 · Education+8 moreGREAT RIVER CHILDRENS MUSEUM: $40,000 · Arts & CultureMINNETONKA CENTER FOR THE ARTS: $6,000 · Arts & CultureMINNESOTA LAND TRUST: $23,000 · EnvironmentDucks Unlimited Inc: $16,000 · EnvironmentThe Lift Garage: $9,000 · EmploymentMOUNT OLIVET ROLLING ACRES INC: $7,000 · Human ServicesGuadalupe Center Inc: $1,000 · Human Services
Other$586,600Health$423,700Education$239,200Arts & Culture$46,000Environment$39,000Employment$9,000Human Services$8,000

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 budgetMAYO CLINIC: $317,200 over 8y, 0.0% of budgetABBOTT NORTHWESTERN HOSPITAL FOUNDATION: $125,000 over 6y, 0.7% of budgetMITCHELL HAMLINE SCHOOL OF LAW: $80,000 over 8y, 0.0% of budgetAlumnae Association of Smith College: $77,000 over 6y, 1.5% of budgetLA POINTE COMMUNITY CLINIC INC: $44,000 over 9y, 8.6% of budgetGREAT RIVER CHILDRENS MUSEUM: $40,000 over 4y, 0.7% of budgetPALM BEACH DAY ACADEMY INC: $36,000 over 9y, 0.0% of budgetALLINA HEALTH FOUNDATION: $30,000 over 3y, 0.0% of budgetMINNESOTA LAND TRUST: $23,000 over 9y, 0.0% of budgetLAWYERS CONCERNED FOR LAWYERS: $18,000 over 8y, 0.5% of budgetDucks Unlimited Inc: $16,000 over 8y, 0.0% of budgetJacksonville University: $12,000 over 9y, 0.0% of budgetPRESIDENT-BOARD OF TRUSTEES SANTA CLARA COLLEGE: $11,000 over 8y, 0.0% of budgetTHE NATURE CONSERVANCY: $10,000 over 1y, 0.0% of budgetPANCREATIC CANCER ACTION NETWORK INC: $9,500 over 9y, 0.0% of budgetThe Lift Garage: $9,000 over 9y, 0.2% of budgetORONO FOUNDATION FOR EDUCATION: $9,000 over 4y, 0.3% of budgetINTERFAITH OUTREACH AND COMMUNITY PARTNERS: $9,000 over 9y, 0.0% of budgetMOUNT OLIVET ROLLING ACRES INC: $7,000 over 7y, 0.0% of budgetMINNETONKA CENTER FOR THE ARTS: $6,000 over 6y, 0.2% of budgetGUNFLINT TRAIL VOLUNTEER FIRE DEPARTMENT: $5,700 over 7y, 0.9% of budgetBRIGHTFOCUS FOUNDATION: $5,000 over 1y, 0.0% of budgetHumane World for Animals Inc: $5,000 over 1y, 0.0% of budgetUNIVERSITY OF DENVER: $4,000 over 4y, 0.0% of budgetTHE BLAKE SCHOOL: $3,200 over 7y, 0.0% of budgetROLLINS COLLEGE: $2,000 over 3y, 0.0% of budgetUNIVERSITY OF MINNESOTA FOUNDATION: $1,500 over 2y, 0.0% of budgetGUSTAVUS ADOLPHUS COLLEGE: $1,000 over 1y, 0.0% of budgetGuadalupe Center Inc: $1,000 over 1y, 0.0% of budgetTHE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY: $1,000 over 1y, 0.0% of budgetThe Florida State University Foundation Inc: $1,000 over 1y, 0.0% of budgetBreck School: $500 over 1y, 0.0% of budgetNATIONAL PARKS OF LAKE SUPERIOR FOUNDATION: $200 over 1y, 0.1% 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 MAYO CLINIC ↗
  • Who funds ABBOTT NORTHWESTERN HOSPITAL FOUNDATION ↗
  • Who funds MITCHELL HAMLINE SCHOOL OF LAW ↗
  • Who funds Alumnae Association of Smith College ↗
  • Who funds LA POINTE COMMUNITY CLINIC INC ↗
  • Who funds GREAT RIVER CHILDRENS MUSEUM ↗
  • Who funds PALM BEACH DAY ACADEMY INC ↗
  • Who funds ALLINA HEALTH FOUNDATION ↗
  • Who funds MINNESOTA LAND TRUST ↗
  • Who funds LAWYERS CONCERNED FOR LAWYERS ↗
  • Who funds Ducks Unlimited Inc ↗
  • Who funds Jacksonville University ↗
  • Who funds PRESIDENT-BOARD OF TRUSTEES SANTA CLARA COLLEGE ↗
  • Who funds THE NATURE CONSERVANCY ↗
  • Who funds PANCREATIC CANCER ACTION NETWORK INC ↗
  • Who funds The Lift Garage ↗
  • Who funds ORONO FOUNDATION FOR EDUCATION ↗
  • Who funds INTERFAITH OUTREACH AND COMMUNITY PARTNERS ↗
  • Who funds MOUNT OLIVET ROLLING ACRES INC ↗
  • Who funds MINNETONKA CENTER FOR THE ARTS ↗
  • Who funds GUNFLINT TRAIL VOLUNTEER FIRE DEPARTMENT ↗
  • Who funds BRIGHTFOCUS FOUNDATION ↗
  • Who funds Humane World for Animals Inc ↗
  • Who funds UNIVERSITY OF DENVER ↗
  • Who funds THE BLAKE SCHOOL ↗

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 Minneapolis FoundationMN19.8× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Minneapolis Foundation · Mightycause Charitable Foundation · Longview Foundation · The Head Family Foundation · Saint Paul & Minnesota Foundation · Xcel Energy Foundation · National Philanthropic Trust · The Blackbaud Giving Fund · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Charities Aid Foundation America

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 Alton Foundation funds: left to right is the share of its income from government, bottom to top the share from Alton Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%0%1%3%5%funder's share of their income ↑0%6%13%19%25%share of the org’s income from government →median 0%
  • The Trustees of the Stevens Institute of Technology: 12% of income from government
  • Jacksonville University: 3% of income from government
  • Rollins College: 0% of income from government
  • Palm Beach Day Academy Inc: 0% of income from government
  • Guadalupe Center 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 Alton Foundation?

Find your warmest path to Alton 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 63 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

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