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· Private foundation

Maclean 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.

$4.0M
Granted FY2025still arriving
4
Grants FY2025still arriving
3
States reached
$1.7M
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Education$17MScience & Tech$1.5MHealth$800kPhilanthropy$757kArts & Culture$639kRecreation & Sports$571kAnimals$341kHuman Services$30k
02FY2025 · 4 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $50k–250k1 grant · $50k
  • $250k+3 grants · $4.0M
$1,500,000
Median grant
3
States reached
$16M
Total assets
Largest grants
RecipientAmount
University of Chicago$1,748,263
Dartmouth College$1,500,000
Museum of Science and Industry$750,000
Ruffed Grouse Society$50,000
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:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 49% of its dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 11%Leventhal Map Education Center: $35k → 16%Ruffed Grouse Society: $100k → 11%Union College: $746k → 12%African Wildlife Foundation: $160k → 14%Loomis Chaffee School: $1.2M → 11%Shangri-La Therapeutic Academy: $31k → 10%Zoo Knoxville: $1k → 12%US Ski Snowboard Foundation: $40k → 5%Various Public Charities: $250 → 8%The Art Institute of Chicago: $500k → 14%Samaritan Ministries: $30k → 14%Dartmouth College: $6.6M → 10%Leventhal Map Education Center: $30k → 16%Ruffed Grouse Society: $50k → 11%Union College: $10k → 12%African Wildlife Foundation: $30k → 14%Lake Forest Country Day School: $60k → 8%Rush Road Home: $10k → 14%Samaritan Ministries: $30k → 14%Dartmouth College: $2.0M → 10%Ruffed Grouse Society: $50k → 11%Samaritan Ministries: $20k → 14%Lake Forest Country Day School: $30k → 8%The Art Institute of Chicago: $50k → 14%Samaritan Ministries: $30k → 14%Dartmouth College: $1.5M → 10%Shirley Ryan Ability Lab: $675k → 14%Samaritan Ministries: $20k → 14%Dartmouth College: $1.5M → 10%University of Chicago: $2.1M → 14%University of Chicago: $1.7M → 14%University of Chicago: $1.7M → 14%University of Chicago: $1.5M → 14%Museum of Science and Industry: $750k → 14%Museum of Science and Industry: $750k → 14%Museum of Science and Industry: $750k → 14%University of Chicago: $193k → 14%Millenium Park Foundation: $500k → 14%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

NH
IL
NY
MA
PA
CT
UT
TN
DC
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.

90%of every dollar goes to organizations it has funded before.
$23M · 11 repeat orgs$2.5M to everyone else

11 repeat relationships: 4 still active in FY2025, 7 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

11
12

Total granted

$23M
$2.5M

Median revenue growth · since first grant

+34%
+56%

Still filing today

64%
33%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 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 & CultureHealthRecreation & SportsAnimalsOther
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

  • University of Chicago
    5× · 2018–2025 · $7.2M · revenue +52%
  • KC
    Kenneth C Griffin Museum of Science and Industry
    3× · 2023–2025 · $2.3M · revenue +14%
  • TA
    THE ART INSTITUTE OF CHICAGO
    2× · 2018–2022 · $550k · revenue +34%

Funded once

  • TL
    THE LOOMIS INSTITUTE D/B/A THE LOOMIS CHAFFEE SCHOOL
    one grant, 2022 · $1.2M · revenue +14%
  • RI
    Rehabilitation Institute of Chicago
    one grant, 2023 · $675k · revenue +5%
  • MP
    MILLENNIUM PARK FOUNDATIONgraduated
    one grant, 2023 · $500k · revenue +56%
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
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
2
Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation

The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.

Science & Tech
3
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
4
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
5
Marine Biological Laboratory

The Marine Biological Laboratory (MBL) is a world-renowned center for biological discovery and training that is notably affiliated with more than 60 Nobel Prize winners. Research is conducted by full-time faculty as well as hundreds of the…

Science & Tech
6
University of Miami

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

Education
7
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
8
William Marsh Rice University

As a leading research university with a distinctive commitment to undergraduate education, Rice University aspires to path breaking research, unsurpassed teaching, and contributions to the betterment of our world. It seeks to fulfill this…

Education
9
Stanley Manne Childrens Research Institute

Stanley manne children's research institute strives to generate new knowledge and advance the prevention, diagnosis, and treatment of pediatric diseases.

Health
10
Music Institute of Chicago

The music institute of chicago ("music institute") leads people toward a lifelong engagement with music, by providing widely accessible resources for high quality music teaching, performing, and service activities.

Arts & Culture
11
Museum of Modern Art

The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)

Arts & Culture
12
Lowell Observatory

The mission of lowell observatory is to pursue the study of astronomy, especially the study of our solar system and its evolution; to conduct pure research in astronomical phenomena; and to maintain quality public education and outreach…

Science & Tech
How this is measured
The grantee most central to the portfolio’s shape is The Art Institute of Chicago; the most unlike its peers is African Wildlife Foundation 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

11 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. 11 of the 23 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)
11/11
Grantees still filing
11/11
Grew since first funded

Where the money sits, by cause and then by grantee

Dartmouth College: $11,600,000 · OtherDartmouth CollegeUnion College: $756,430 · OtherUnion College+11 more: $472,250 · OtherUniversity of Chicago: $7,237,289 · EducationUniversity of ChicagoTHE LOOMIS INSTITUTE D/B/A THE LOOMIS CHAFFEE SCHOOL: $1,200,000 · EducationTHE LOOMIS INSTITUTE D/B/A THE LOOMIS C…THE ART INSTITUTE OF CHICAGO: $550,000 · EducationTHE ART INSTITUTE OF CHICAGOKenneth C Griffin Museum of Science and Industry: $2,250,000 · Arts & CultureKenneth C …+2 more: $24,050 · Arts & CultureRehabilitation Institute of Chicago: $675,000 · HealthSAMARITAN MINISTRIES INTERNATIONAL: $110,000 · HealthMILLENNIUM PARK FOUNDATION: $500,000 · Recreation & SportsAFRICAN WILDLIFE FOUNDATION INC: $190,000 · Animals
Other$12,828,680Education$8,987,289Arts & Culture$2,274,050Health$785,000Recreation & Sports$500,000Animals$190,000

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetUniversity of Chicago: $7,237,289 over 5y, 0.0% of budgetKenneth C Griffin Museum of Science and Industry: $2,250,000 over 3y, 1.3% of budgetTHE LOOMIS INSTITUTE D/B/A THE LOOMIS CHAFFEE SCHOOL: $1,200,000 over 1y, 1.7% of budgetRehabilitation Institute of Chicago: $675,000 over 1y, 0.2% of budgetTHE ART INSTITUTE OF CHICAGO: $550,000 over 2y, 0.1% of budgetMILLENNIUM PARK FOUNDATION: $500,000 over 1y, 20% of budgetAFRICAN WILDLIFE FOUNDATION INC: $190,000 over 2y, 0.5% of budgetSAMARITAN MINISTRIES INTERNATIONAL: $110,000 over 4y, 0.1% of budgetLAKE FOREST COUNTRY DAY SCHOOL: $90,000 over 2y, 0.4% of budgetKNOXVILLE SYMPHONY SOCIETY INCORPORATED: $14,050 over 2y, 0.3% of budgetAMERICAN FRIENDS OF THE MUSEE DORSAY: $10,000 over 1y, 0.9% 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 University of Chicago ↗
  • Who funds Kenneth C Griffin Museum of Science and Industry ↗
  • Who funds THE LOOMIS INSTITUTE D/B/A THE LOOMIS CHAFFEE SCHOOL ↗
  • Who funds Rehabilitation Institute of Chicago ↗
  • Who funds THE ART INSTITUTE OF CHICAGO ↗
  • Who funds MILLENNIUM PARK FOUNDATION ↗
  • Who funds AFRICAN WILDLIFE FOUNDATION INC ↗
  • Who funds SAMARITAN MINISTRIES INTERNATIONAL ↗
  • Who funds LAKE FOREST COUNTRY DAY SCHOOL ↗
  • Who funds KNOXVILLE SYMPHONY SOCIETY INCORPORATED ↗
  • Who funds AMERICAN FRIENDS OF THE MUSEE DORSAY ↗

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 Bank of America Charitable Foundation IncNC9.4× affinity4 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund

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

2024
’20’21’22’23’24’25
no gov · 10%1%5%11%20%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get 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 · 0–15%
    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 Maclean Foundation?

    Find your warmest path to Maclean 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 23 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 Maclean’s filings →

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