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Maffei Foundation at a glance

· Private foundation

Maffei Foundation

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.

$647k
Granted FY2024still arriving
8
Grants FY2024still arriving
6
States reached
$500k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
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 2024.

Education$28MHealth$518kEnvironment$124kArts & Culture$110kYouth Development$98kPhilanthropy$76kRecreation & Sports$61kFood & Nutrition$41kOther$0
02FY2024 · 8 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k5 grants · $14k
  • $50k–250k2 grants · $133k
  • $250k+1 grant · $500k
$5,200
Median grant
6
States reached
$7.7M
Total assets
Largest grants
RecipientAmount
DARTMOUTH COLLEGE FUND$500,000
HIGH LINE CANAL CONSERVANCY$83,333
FUNHOUSE COMMONS$50,000
MD ANDERSON$5,200
STORYVILLE CENTER$5,000
CHILDREN HOSPITAL CO FOUNDATION$2,054
EVANS SCHOLARS FOUNDATION$750
SSP INVEST IN KIDS$540
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 (FY20–23, $13k) land where the poverty rate runs at 12%, 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%RAY OF HOPE: $5k → 12%RAY OF HOPE: $2k → 12%CLOTHES TO KIDS: $1k → 12%SAME CAFE: $4k → 12%CLOTHES TO KIDS: $1k → 12%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
WA
ID
IL
NY
MA
OR
IN
PA
CT
CA
UT
CO
NE
VA
SC
DC
GA
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.
$30M · 28 repeat orgs$521k to everyone else

Grantees it renews have grown median revenue +35% since the first grant, against +27% for those funded once.

28 repeat relationships: 5 still active in FY2024, 23 since wound down; 3 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

28
58

Total granted

$30M
$461k

Median revenue growth · since first grant

+35%
+27%

Still filing today

46%
45%

New vs renewed · share of each year

In FY2024, 91% of grant dollars renewed an existing relationship; $60k 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
EducationHealthArts & CultureHuman ServicesRecreation & SportsPhilanthropyOther
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

  • CA
    COLORADO ACADEMY
    5× · 2017–2022 · $3.5M · revenue +54%
  • GROTON SCHOOL
    5× · 2017–2023 · $610k · revenue +21%
  • CD
    CHILDREN'S DIABETES FOUNDATION
    2× · 2021–2023 · $205k · revenue +35%

Funded once

  • SA
    ST ANDREWS UNIVERSITY
    one grant, 2022 · $50k
  • NJ
    NATIONAL JEWISH HEALTH COVID 19
    one grant, 2020 · $50k
  • MR
    MELANOMA RESEARCH ALLIANCE
    one grant, 2022 · $25k
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
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
2
Dana-Farber Cancer Institute Inc

The mission of dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…

Health
3
Project Drawdown

Project drawdown's mission is to drive meaningful climate action by advancing science-based solutions and strategies. project drawdown's work is focused on three pillars: science - advancing science-based climate solutions and strategies;…

Education
4
Target Als Foundation Inc

Our mission is to break down barriers to als research to find effective treatments. by uniting academia, the pharma and biotech industry, government, venture capital, related nonprofits, and the als community, we aim to overcome the…

Education
5
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
6
University of Southern California

The central mission of the university of southern california is the development of human beings and society as a whole through the cultivation and enrichment of the human mind and spirit. the principal means by which our mission is…

Education
7
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
8
National Science and Technology Medals Foundation Inc

The nstmf's mission is to build inclusive stem communities across the united states. fundamental to these communities are the significant, inspirational connections we foster between the individuals who have received national recognition…

—
9
Council On Foreign Relations Inc

The council on foreign relations (cfr) is an independent, nonpartisan membership organization, think tank, and publisher dedicated to being a resource for its members, government officials, business executives, journalists, educators and…

International
10
President and Fellows of Harvard College

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

Education
11
University of Denver

The university of denver (du) is a higher educational institution, providing both undergraduate and graduate degrees - the mission of the university of denver is to promote learning by engaging with students (continued on schedule o)in…

Education
12
Education Commission of the States

The mission of education commission of the states is to advocate for attaining educational excellence for all and to help state leaders identify, develop and implement public policy for education that addresses current and future needs of…

Education
How this is measured
The grantee most central to the portfolio’s shape is Mile High United Way Inc; the most unlike its peers is Ray of Hope 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

44 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. 44 of the 91 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)
6
Early backer (in before they grew)
42/44
Grantees still filing
32/44
Grew since first funded

Where the money sits, by cause and then by grantee

DARTMOUTH COLLEGE FUND: $23,645,541 · OtherDARTMOUTH COLLEGE FUNDIndividual grant recipient: $1,507,796 · OtherIndividual grant recipient+59 more: $605,699 · OtherCOLORADO ACADEMY: $3,457,121 · EducationCOLORADO ACADEM…GROTON SCHOOL: $609,518 · EducationGROTON SCHOOL+7 more: $45,738 · EducationCHILDREN'S DIABETES FOUNDATION: $205,050 · HealthNATIONAL JEWISH HEALTH: $100,000 · HealthBREAKTHROUGH T1D: $35,000 · Health+6 more: $22,323 · HealthCHILDREN'S DISCOVERY FOUNDATION: $50,000 · Arts & CultureDENVER ART MUSEUM: $33,000 · Arts & CultureWALLIS ANNENBERG CENTER FOR THE PERFORMING ARTS: $25,000 · Arts & CultureUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $25,000 · PhilanthropyCOLORADO GIVES FOUNDATION: $15,306 · PhilanthropyPebble Beach Company Foundation: $15,000 · PhilanthropyMILE HIGH UNITED WAY INC: $10,000 · Philanthropy+1 more: $1,000 · PhilanthropyTHE WESTERN STOCK SHOW ASSOCIATION: $25,000 · Recreation & SportsGRASSROOT SOCCER INC: $10,420 · Recreation & Sports+1 more: $1,000 · Recreation & SportsFOOD BANK OF THE ROCKIES: $25,000 · Food & Nutrition
Other$25,759,036Education$4,112,377Health$362,373Arts & Culture$108,000Philanthropy$66,306Recreation & Sports$36,420Food & Nutrition$25,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCOLORADO ACADEMY: $3,457,121 over 5y, 4.1% of budgetGROTON SCHOOL: $609,518 over 5y, 0.7% of budgetCHILDREN'S DIABETES FOUNDATION: $205,050 over 2y, 2.5% of budgetNATIONAL JEWISH HEALTH: $100,000 over 2y, 0.0% of budgetHIGH LINE CANAL CONSERVANCY: $88,333 over 2y, 1.1% of budgetCHILDREN'S DISCOVERY FOUNDATION: $50,000 over 1y, 4.5% of budgetBREAKTHROUGH T1D: $35,000 over 4y, 0.0% of budgetDENVER ART MUSEUM: $33,000 over 3y, 0.0% of budgetDENVER SCHOLARSHIP FOUNDATION: $30,363 over 3y, 0.1% of budgetWALLIS ANNENBERG CENTER FOR THE PERFORMING ARTS: $25,000 over 1y, 0.2% of budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $25,000 over 1y, 0.0% of budgetFOOD BANK OF THE ROCKIES: $25,000 over 1y, 0.0% of budgetTHE WESTERN STOCK SHOW ASSOCIATION: $25,000 over 1y, 0.1% of budgetSki and Snowboard Club Vail: $24,800 over 5y, 0.1% of budgetCOLORADO GIVES FOUNDATION: $15,306 over 1y, 0.0% of budgetEL DORADO FOUNDATION: $15,000 over 2y, 14% of budgetPebble Beach Company Foundation: $15,000 over 1y, 0.4% of budgetGRASSROOT SOCCER INC: $10,420 over 1y, 0.2% of budgetAMERICARES FOUNDATION INC: $10,000 over 1y, 0.0% of budgetFOUNDATION FOR EXCELLENCE IN EDUCATION INC: $10,000 over 1y, 0.1% of budgetI HAVE A DREAM FOUNDATION: $10,000 over 1y, 0.1% of budgetGLOBAL DOWN SYNDROME FOUNDATION: $10,000 over 1y, 0.2% of budgetMILE HIGH UNITED WAY INC: $10,000 over 1y, 0.0% of budgetMercy Corps: $5,250 over 1y, 0.0% of budgetCOMMON SENSE INSTITUTE: $5,000 over 1y, 0.5% of budgetCROHN'S & COLITIS FOUNDATION INC: $5,000 over 1y, 0.0% of budgetBLOOD CANCER UNITED INC: $5,000 over 1y, 0.0% of budgetEnvironmental Law Institute: $5,000 over 1y, 0.1% of budgetHEART AND HAND CENTER: $4,900 over 4y, 0.1% of budgetSO ALL MAY EAT INC: $3,750 over 1y, 0.4% of budgetCLOTHES TO KIDS OF DENVER INC: $2,000 over 2y, 0.1% of budgetSOUTH KENT SCHOOL CORPORATION: $1,875 over 1y, 0.0% of budgetCLEAN AIR TASK FORCE INC: $1,754 over 1y, 0.0% of budgetWORLD CUP DREAMS FOUNDATION FKA SFI FOUNDATION: $1,000 over 1y, 0.5% of budgetAmerican Diabetes Association: $1,000 over 1y, 0.0% of budgetTHE UC DAVIS FOUNDATION: $1,000 over 1y, 0.0% of budgetPasadena Community Foundation: $1,000 over 1y, 0.0% of budgetRAINIER SCHOLARS: $1,000 over 1y, 0.0% of budgetSentinels of Freedom Scholarship Foundation: $1,000 over 1y, 0.1% of budgetDartmouth-Hitchcock Health: $823 over 3y, 0.0% of budgetADDICTION EDUCATION SOCIETY INC: $500 over 1y, 0.1% of budgetCOLORADO STATE UNIVERSITY FOUNDATION: $500 over 1y, 0.0% 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.

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.

Colorado Gives Founda…The Denver FoundationAnschutz Family Found…Morgan Stanley Global…The Macmeier Foundati…National Philanthropi…Rose Community Founda…El Pomar FoundationThe Colorado Health F…Amg Charitable Gift F…Xcel Energy FoundationGs Donor Advised Phil…
Colorado Gives FoundationCO19.5× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Colorado Gives Foundation · The Denver Foundation · Anschutz Family Foundation · Morgan Stanley Global Impact Funding Trust Inc · The Macmeier Foundation · National Philanthropic Trust · Rose Community Foundation · El Pomar Foundation · The Colorado Health Foundation · Amg Charitable Gift Foundation · Xcel Energy Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc

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

2024
’20’21’22’23’24’25
no gov · 30%1%4%8%15%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 0%
  • Mercy Corps: 47% of income from government
  • South Kent School Corporation: 0% of income from government
  • Americares Foundation Inc: 0% of income from government
no gov moneyreceives it· size = income
3get 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 · 0–75%
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 Maffei Foundation?

Find your warmest path to Maffei 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 91 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Maffei’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home