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Heyday Foundation at a glanceAlso receives grants: funding profile →

· Private foundation

Heyday 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.

$703k
Granted FY2025still arriving
44
Grants FY2025still arriving
8
States reached
$145k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0199% classified

What it funded, over time

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

Civil Rights$1.0MArts & Culture$973kPhilanthropy$623kInternational$373kEducation$271kPublic Benefit$269kScience & Tech$50kSocial Science$41kOther$0
02FY2025 · 44 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k28 grants · $65k
  • $10k–50k12 grants · $249k
  • $50k–250k4 grants · $389k
$5,000
Median grant
8
States reached
$5.9M
Total assets
Largest grants
RecipientAmount
THE MIAMI FOUNDATION INC$145,000
PEN AMERICAN CENTER INC$104,000
MERIDIAN INTERNATIONAL CENTER$90,000
STUDIO MUSEUM OF HARLEM$50,000
BROOKLYN MUSEUM OF ART$30,000
AMERICAN THEATRE WING INC$26,000
HUMAN RIGHTS CAMPAIGN INC$25,000
CAMPAIGN LEGAL CENTER$25,000
BRENNAN CENTER FOR JUSTICE$25,000
COUNCIL ON FOREIGN RELATIONS INC$25,000
CENTER FOR AMERICAN PROGRESS$25,000
THE UNIVERSITY OF TEXAS FOUNDATION INC$20,000
NEW YORK UNIVERSITY$15,000
PLAYWRIGHTS HORIZONS INC$12,500
FLORIDA ALLIANCE FOR CIVIC ENGAGEMENT INC$10,000
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 (FY18–23, $19k) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 32% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 11%NATIONAL DIAPER BANK NETWORK: $1k → 12%YOUNG MENS-YOUNG WOMENS HEBREW ASSOCIATION OF BERGEN COUNTY: $3k → 7%THE TIDES CENTER: $10k → 10%NATIONAL DIAPER BANK NETWORK: $500 → 12%AMERICAN FRIENDS OF UN TECHO PARA MI PAIS INC: $1k → 15%THE LESBIAN GAY BISEXUAL & TRANSGENDER COMMUNITY CENTER: $1k → 17%AMERICAN FRIENDS OF UN TECHO PARA MI PAIS INC: $500 → 15%SAFE HORIZON: $1k → 17%MARLENE MEYERSON JCC MANHATTAN: $500 → 17%WOMEN IN NEED: $500 → 17%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

VT
WA
IL
MI
NY
MA
PA
NJ
CT
CA
CO
MO
VA
MD
DE
NC
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.

92%of every dollar goes to organizations it has funded before.
$3.4M · 72 repeat orgs$301k to everyone else

Grantees it renews have grown median revenue +12% since the first grant, against +6% for those funded once.

72 repeat relationships: 31 still active in FY2025, 41 since wound down; 12 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

72
85

Total granted

$3.4M
$269k

Median revenue growth · since first grant

+12%
+6%

Still filing today

89%
74%

New vs renewed · share of each year

In FY2025, 94% of grant dollars renewed an existing relationship; $32k 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
Arts & CultureEducationCivil RightsHuman ServicesHealthInternationalOther
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

  • MI
    MERIDIAN INTERNATIONAL CENTER
    8× · 2018–2025 · $334k · revenue +19%
  • PA
    PEN AMERICAN CENTER INC
    5× · 2020–2025 · $267k · revenue +7%
  • LV
    LGBTQ Victory Institute Inc
    5× · 2019–2023 · $150k · revenue +70%

Funded once

  • IG
    Individual grant recipient
    one grant, 2018 · $60k
  • PO
    PROJECT ON GOVERNMENT OVERSIGHT INC
    one grant, 2021 · $10k · revenue -6%
  • CC
    COMMON CAUSE EDUCATION FUND
    one grant, 2021 · $10k · revenue +11%
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
Berggruen Institute
Education
2
Women's Project & Productions Inc

Wp theater is the nation's oldest and largest theater company dedicated to developing, producing, and promoting the work of women+ at every stage of their careers. for over four decades we have served as leaders of a global movement…

Arts & Culture
3
The Paris Review Foundation Inc

The mission of the organization is to foster the development of creative individuals as writers and artists and to promote public appreciation of excellence in the literary and graphic arts by publishing a magazine containing fiction,…

Education
4
Manhattan Institute for Policy Research Inc

The manhattan institute is a community of scholars, journalists, activists, and civic leaders dedicated to advancing opportunity, individual liberty, and the rule of law in america and its great cities.

Public Benefit
5
Knight First Amendment Institute at Columbia University Inc

The Knight First Amendment Institute defends the freedoms of speech and the press in the digital age through strategic litigation, research, public advocacy and public education. Our aim is to promote a system of free expression that is…

Education
6
The Paley Center for Media

Description of organization mission: the paley center for media is the premier institution dedicated to advancing the understanding of media-it's artistic value, social impact and historical importance-for the public and media…

Arts & Culture
7
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
8
Peter G Peterson Institute for International Economics

The peterson institute for international economics (piie) is an independent nonprofit, nonpartisan research organization dedicated to strengthening prosperity and human welfare in the global economy through expert analysis and practical…

Social Science
9
Miami New Drama

Miami new drama is a nonprofit professional theater company based in miami beach, florida, dedicated to the development and production of new theatrical work and to theater-making as a means of social engagement, cultural conversation, and…

Arts & Culture
10
The Roosevelt Institute

To create a nation where everyone enjoys a fair share of our collective prosperity.

Education
11
The Jewish Museum

The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.

Arts & Culture
12
The Asia Society

The society is an international nonprofit, nonpartisan organization which connects people and institutions in asia and the world to build understanding, address challenges and maximize opportunities.

International
How this is measured
The grantee most central to the portfolio’s shape is New York Foundation for the Arts Inc; the most unlike its peers is The Matthew Harris Ornstein Memorial 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

149 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. 149 of the 178 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)
13
Early backer (in before they grew)
147/149
Grantees still filing
90/149
Grew since first funded

Where the money sits, by cause and then by grantee

PEN AMERICAN CENTER INC: $267,000 · Arts & CulturePEN AMERICAN CENTER INCTHE STUDIO MUSEUM IN HARLEM: $220,500 · Arts & CultureTHE STUDIO MUSEUM IN HARLEMAMERICAN THEATRE WING INC: $181,000 · Arts & CultureAMERICAN THEATRE WING INCPLAYWRIGHTS HORIZONS INC: $82,500 · Arts & CulturePLAYWRIGHTS HORIZONS INCMARCH ON WASHINGTON FILM FESTIVAL: $60,500 · Arts & CultureMARCH ON WASHINGTON FILM FE…JOHN F KENNEDY CENTER FOR THE PERFORMING ARTS: $54,700 · Arts & Culture+44 more: $235,457 · Arts & Culture+44 moreNATIONAL REDISTRICTING FOUNDATION: $385,000 · Civil RightsNATIONAL REDISTRICTING FOUN…CENTER FOR AMERICAN PROGRESS: $225,000 · Civil RightsCENTER FOR AMERICAN PROGRES…LGBTQ Victory Institute Inc: $150,000 · Civil RightsLGBTQ Victory Institute IncHUMAN RIGHTS CAMPAIGN INC: $106,000 · Civil RightsHUMAN RIGHTS CAMPAIGN INCHUMAN RIGHTS CAMPAIGN FOUNDATION: $105,000 · Civil RightsHUMAN RIGHTS CAMPAIGN FOUND…DEMOCRACY WORKS INC: $75,000 · Civil RightsDEMOCRACY WORKS INC+8 more: $48,500 · Civil RightsTHE MIAMI FOUNDATION INC: $435,000 · PhilanthropyTHE MIAMI FOUNDATI…THE NEW YORK COMMUNITY TRUST: $245,000 · PhilanthropyTHE NEW YORK COMMU…TIDES FOUNDATION: $25,000 · Philanthropy+7 more: $30,000 · PhilanthropyMERIDIAN INTERNATIONAL CENTER: $333,600 · InternationalMERIDIAN INT…COUNCIL ON FOREIGN RELATIONS INC: $111,080 · InternationalCOUNCIL ON F…International Rescue Committee INC: $35,000 · InternationalInternationa…+4 more: $13,150 · InternationalBROOKLYN MUSEUM OF ART: $97,000 · OtherBROOKLYN MUSEUM…Individual grant recipient: $60,000 · OtherIndividual gran…NATIONAL RESTRICTING FOUNDATION: $50,000 · OtherNATIONAL RESTRI…THE UNIVERSITY OF TEXAS FOUNDATION INC: $40,000 · OtherTHE UNIVERSITY …Center on Budget and Policy Priorities: $30,000 · OtherALI FORNEY CENTER INC: $36,000 · OtherALI FORNEY CENT…+71 more: $288,363 · Other+71 moreWILLIAM J BRENNAN CENTER FOR JUSTICE INC: $200,000 · EducationWILLIAM J…New York University: $60,000 · EducationNew York …President and Fellows of Harvard College: $50,000 · EducationPresident…+16 more: $46,950 · Education+16 moreTHE CAMPAIGN LEGAL CENTER INC: $110,000 · Crime & Legal
Arts & Culture$1,101,657Civil Rights$1,094,500Philanthropy$735,000International$492,830Other$601,363Education$356,950Crime & Legal$110,000

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 budgetTHE MIAMI FOUNDATION INC: $435,000 over 4y, 0.1% of budgetNATIONAL REDISTRICTING FOUNDATION: $385,000 over 5y, 1.3% of budgetMERIDIAN INTERNATIONAL CENTER: $333,600 over 8y, 0.2% of budgetPEN AMERICAN CENTER INC: $267,000 over 5y, 0.6% of budgetTHE NEW YORK COMMUNITY TRUST: $245,000 over 8y, 0.0% of budgetCENTER FOR AMERICAN PROGRESS: $225,000 over 8y, 0.1% of budgetTHE STUDIO MUSEUM IN HARLEM: $220,500 over 8y, 0.1% of budgetWILLIAM J BRENNAN CENTER FOR JUSTICE INC: $200,000 over 6y, 0.1% of budgetAMERICAN THEATRE WING INC: $181,000 over 9y, 0.9% of budgetLGBTQ Victory Institute Inc: $150,000 over 5y, 1.4% of budgetCOUNCIL ON FOREIGN RELATIONS INC: $111,080 over 6y, 0.0% of budgetTHE CAMPAIGN LEGAL CENTER INC: $110,000 over 5y, 0.1% of budgetHUMAN RIGHTS CAMPAIGN INC: $106,000 over 5y, 0.1% of budgetHUMAN RIGHTS CAMPAIGN FOUNDATION: $105,000 over 2y, 0.4% of budgetPLAYWRIGHTS HORIZONS INC: $82,500 over 9y, 0.2% of budgetDEMOCRACY WORKS INC: $75,000 over 3y, 0.3% of budgetMARCH ON WASHINGTON FILM FESTIVAL: $60,500 over 8y, 1.4% of budgetNew York University: $60,000 over 4y, 0.0% of budgetJOHN F KENNEDY CENTER FOR THE PERFORMING ARTS: $54,700 over 4y, 0.0% of budgetPresident and Fellows of Harvard College: $50,000 over 2y, 0.0% of budgetTHE UNIVERSITY OF TEXAS FOUNDATION INC: $40,000 over 2y, 0.0% of budgetALI FORNEY CENTER INC: $36,000 over 3y, 0.1% of budgetInternational Rescue Committee INC: $35,000 over 6y, 0.0% of budgetCenter on Budget and Policy Priorities: $30,000 over 4y, 0.0% of budgetAmerican Friends of Israel Philharmonic Orchestra: $30,000 over 3y, 0.3% of budgetTIDES FOUNDATION: $25,000 over 1y, 0.0% of budgetGLIMMERGLASS OPERA THEATRE INC: $20,000 over 6y, 0.1% of budgetNEW YORK CITY CENTER INC: $17,150 over 6y, 0.0% of budgetTHE ECONOMIC CLUB OF NEW YORK: $16,650 over 4y, 0.4% of budgetTHE BROOKLYN INSTITUTE OF ARTS AND SCIENCES: $16,000 over 2y, 0.0% of budgetEQUALITY FLORIDA INSTITUTE INC: $15,000 over 2y, 0.2% of budgetHACKLEY SCHOOL: $15,000 over 3y, 0.0% of budgetThe Economic Club of Washington DC: $13,500 over 5y, 0.1% of budgetSERVICES AND ADVOCACY FOR GAY LESBIAN BISEXUAL AND TRANSGENDER ELDERS INC: $12,500 over 5y, 0.0% of budgetTHEATRE FOR A NEW AUDIENCE INC: $12,000 over 5y, 0.1% of budgetSTORM KING ART CENTER: $10,500 over 5y, 0.0% of budgetMUSEUM OF THE CITY OF NEW YORK: $10,300 over 4y, 0.0% of budgetTake Back The Court Foundation: $10,000 over 2y, 1.1% of budgetUNIVERSITY OF THE PEOPLE: $10,000 over 2y, 0.0% of budgetPROJECT ON GOVERNMENT OVERSIGHT INC: $10,000 over 1y, 0.1% of budgetPROTEUS FUND INC: $10,000 over 1y, 0.0% of budgetNEW VENTURE FUND: $10,000 over 1y, 0.0% of budgetCOMMON CAUSE EDUCATION FUND: $10,000 over 1y, 0.0% of budgetSMITHSONIAN INSTITUTION: $10,000 over 1y, 0.0% of budgetOUR FUND FOUNDATION INC: $10,000 over 1y, 0.2% of budgetFAIRVOTE: $10,000 over 1y, 0.2% of budgetCenter for US Global Leadership: $10,000 over 3y, 0.1% of budgetMEDIA MATTERS FOR AMERICA: $10,000 over 2y, 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.

The Goldman Sachs Cha…The Ford FoundationThe New York Communit…Jewish Communal FundThe Rockefeller Found…The Andrew W Mellon F…Arison Arts FoundationThe Horace W Goldsmit…The Ayco Charitable F…Silicon Valley Commun…Lily Auchincloss Foun…Cornelia T Bailey Cha…
The Goldman Sachs Charitable Gift FundNY33.4× affinity20 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · The Ford Foundation · The New York Community Trust · Jewish Communal Fund · The Rockefeller Foundation · The Andrew W Mellon Foundation · Arison Arts Foundation · The Horace W Goldsmith Foundation · The Ayco Charitable Foundation · Silicon Valley Community Foundation · Lily Auchincloss Foundation Inc · Cornelia T Bailey Charitable Trust

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

2024
’20’21’22’23’24’25
no gov · 90%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 6%
  • Medstar Health Research Institute Inc: 25% of income from government
  • Dr Martin Luther King Scholarship Fund: 8% of income from government
  • President and Fellows of Harvard College: 7% of income from government
  • The Center for Independent Documentary Inc: 6% of income from government
  • Eugene O'neill Memorial Theater Center Inc: 1% of income from government
  • Bruce Museum Inc: 0% of income from government
  • New World Symphony Inc: 0% of income from government
no gov moneyreceives it· size = income
9get no government money at all
32report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
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 Heyday Foundation?

Find your warmest path to Heyday 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 178 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 Heyday’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