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New York · 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 FY2025(still arriving)
44
Grants FY2025
42
Organizations funded FY2024
26%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$5,000
Largest grant, FY2025
$145,000
Organizations funded a year
33 to 54
FY2018 to FY2024
States reached, FY2025
8
Total assets, FY2025
$5.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 26% of the organizations Heyday Foundation funded were first-time grantees, receiving 8% of its grant dollars.

New vs renewed · share of each year

In FY2024, 92% of grant dollars renewed an existing relationship; $49k went to new ones.

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

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

’18’19’20’21’22’23’24
Arts & CultureEducationCivil RightsHuman ServicesInternationalHealthOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving43$558k28%
FY202442$644k26%
FY202354$463k46%
FY202250$477k40%
FY202139$515k36%
FY202039$357k49%
FY201938$301k53%
FY201833$250k67%
99% 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

Where its grants go

Grant dollars by states, across the years we hold.

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

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 143 grantees
All grantees of Heyday Foundation by total granted
GranteeTotal grantedYearsShare of their budget
National Redistricting Foundation$385,00051%
Meridian International Center$333,60080%
Pen American Center Inc$267,00051%
Center for American Progress$225,00080%
The Studio Museum in Harlem$220,50080%
William J Brennan Center for Justice Inc$200,00060%
American Theatre Wing Inc$181,00091%
LGBTQ Victory Institute Inc$150,00051%
Council on Foreign Relations Inc$111,08060%
The Campaign Legal Center Inc$110,00050%
Human Rights Campaign Inc$106,00050%
Human Rights Campaign Foundation$105,00020%
Playwrights Horizons Inc$82,50090%
Democracy Works Inc$75,00030%
March on Washington Film Festival$60,50081%
New York University$60,00040%
John F Kennedy Center for the Performing Arts$54,70040%
The University of Texas Foundation Inc$40,00020%
Ali Forney Center Inc$36,00030%
International Rescue Committee INC$35,00060%
Center on Budget and Policy Priorities$30,00040%
American Friends of Israel Philharmonic Orchestra$30,00030%
Glimmerglass Opera Theatre Inc$20,00060%
New York City Center Inc$17,15060%
The Economic Club of New York$16,65040%
The Brooklyn Institute of Arts and Sciences$16,00020%
Equality Florida Institute Inc$15,00020%
Hackley School$15,00030%
The Economic Club of Washington DC$13,50050%
Services and Advocacy for Gay Lesbian Bisexual and Transgender Elders Inc$12,50050%
Theatre for a New Audience Inc$12,00050%
Storm King Art Center$10,50050%
Museum of the City of New York$10,30040%
Take Back The Court Foundation$10,00021%
Florida Alliance for Civic Engagement Inc$10,0001n/a
University of the People$10,00020%
Project on Government Oversight Inc$10,00010%
The 19th News$10,0001n/a
Common Cause Education Fund$10,00010%
Smithsonian Institution$10,00010%
Fairvote$10,00010%
Center for US Global Leadership$10,00030%
Media Matters for America$10,00020%
Civitella Ranieri Foundation Inc$9,00030%
Bill Hillary & Chelsea Clinton Foundation$7,50020%
The Ruth & J O Stone Foundation$7,50010%
Lincoln Theatre Center Foundation$7,50040%
Gill Foundation$7,50030%
Children's Museum of the Arts Inc$7,50020%
The Pamm Foundation$7,50010%
The Aspen Institute Inc$7,00010%
Printed Matter Inc$6,50020%
Skowhegan School of Painting and Sculpture Inc$6,50030%
Whitney Museum of American Art$6,47730%
Jorge M Perez Art Museum of Miami-Dade County Inc$6,25030%
New York Theatre Workshop Inc$6,00030%
Lincoln Center for the Performing Arts Inc$5,70040%
Center for Strategic and International Studies$5,00010%
Human Rights Watch Inc$5,00020%
New World Symphony Inc$5,00010%
Advocates for Trans Equality Education Fund$5,00010%
New York Foundation for the Arts Inc$5,00010%
Priorities USA Foundation$5,00010%
Local Initiatives Support Corporation$5,00010%
Madison Square Park Conservancy Inc$5,00010%
Creative Time Inc$5,0001n/a
Partnership for Public Service Inc$5,00010%
Manhattan Class Company Inc$4,50040%
Art Production Fund Inc$4,00010%
New York Shakespeare Festival$3,75030%
Lebanese American Renaissance Partnership$3,6001n/a
John F Kennedy Center Inc$3,50011%
Washington Drama Society Inc$3,50020%
Jonah Bokaer Arts Foundation$3,00030%
International Women's Media Foundation$3,00030%
St Ann's Warehouse Inc$3,00030%
Skidmore College$2,50010%
Fire Island Artist Residency Incorporated$2,50011%
Friends of the Bass Museum Inc$2,50010%
Touching Miami With Love Ministries Inc$2,50010%
Young Mens-Young Womens Hebrew Assoc of Bergen County$2,50010%
Rene Moawad Foundation$2,50010%
Our Towns Civic Foundation Inc$2,00011%
The Academy of American Poets Inc$2,00020%
United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc$2,00010%
American Friends of Un Techo Para Mi Pais Inc$1,50020%
Alma College$1,50010%
Congregation Beit Simchat Torah$1,5001n/a
Lambda Legal Defense & Education Fund Inc$1,50010%
National Diaper Bank Network Inc$1,50020%
Food Education Fund Inc$1,25040%
Cos Cob Volunteer Fire Co #1 Inc$1,05041%
Theatre Aspen$1,00010%
McCj Inc$1,00010%
Atlantic Theater Company$1,00010%
The Center for Independent Documentary Inc$1,00010%
Csc Repertory Ltd D/B/A Classic Stage Company$1,00010%
The National Museum of Women in the Arts$1,00010%
The Common Good Forum Inc$1,00010%
Alzheimer's Drug Discovery Foundation$1,0001n/a
The Centers Inc$1,00010%
The New Press Inc$1,00010%
The University of Florida Foundation Inc$1,00010%
New Museum of Contemporary Art$1,00010%
Trevor Project Inc$1,00010%
N1 Foundation$1,00010%
Tent Foundation Inc$1,0001n/a
Target Als Foundation Inc$1,00010%
The Matthew Harris Ornstein Memorial Foundation Inc$1,00010%
Poets House Inc$1,0001n/a
St Baldrick's Foundation Inc$1,00010%
Film at Lincoln Center Inc$1,0001n/a
Anne Fontaine Foundation Inc$1,00011%
Lesbian and Gay Community Services Center Inc$1,00010%
O Miami Inc$1,00010%
Share Our Strength$1,00010%
Safe Horizon Inc$1,00010%
Prep4all Inc$1,00010%
Behind the Book Inc$1,00010%
Eugene O'Neill Memorial Theater Center Inc$95010%
Silver Shield Association Education Fund Inc$95040%
Primary Stages Company Inc$75010%
The Chicago Council on Global Affairs$65020%
World Poetry Books$5001n/a
Museum of Arts and Design$50010%
Washington Hospital Center Corporation$50010%
Faith in America Inc$50010%
The Garrison Institute$50010%
Dr Martin Luther King Scholarship Fund$50010%
Gallaudet University$50010%
The Jewish Community Center in Manhattan Inc$50010%
Women in Need Inc$50010%
Medstar Health Research Institute Inc$50010%
The Civilians Inc$50010%
March of Dimes Inc$50020%
Kids V Cancer$50021%
Waterfront Alliance Inc$50010%
Museum of Modern Art$48030%
Broadway Caresequity Fights AIDS Inc$35010%
College of the Ozarks$25010%
Sanctuary for Families Inc$25010%
Michigan State University$2001n/a
Bruce Museum Inc$15010%

What it could do for these grantees

Plus 26 recipients with no EIN on record ($290k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Heyday Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their 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 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 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 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 budgetCommon Cause Education Fund: $10,000 over 1y, 0.0% of budgetSmithsonian Institution: $10,000 over 1y, 0.0% 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 budgetCivitella Ranieri Foundation Inc: $9,000 over 3y, 0.2% of budgetBill Hillary & Chelsea Clinton Foundation: $7,500 over 2y, 0.0% of budgetThe Ruth & J O Stone Foundation: $7,500 over 1y, 0.2% of budgetLincoln Theatre Center Foundation: $7,500 over 4y, 0.3% of budgetGill Foundation: $7,500 over 3y, 0.1% of budgetChildren's Museum of the Arts Inc: $7,500 over 2y, 0.3% of budgetThe Pamm Foundation: $7,500 over 1y, 0.1% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 132.

Nonprofits that may fit its grantmaking

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 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.

Compare Heyday Foundation with peer funders

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.

About Heyday Foundation

How much does Heyday Foundation give?
Heyday Foundation reported 44 grants totaling $702,500 in its FY2025 IRS filing. It funded between 33 and 54 organizations a year over FY2018 to FY2024.
What does Heyday Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Civil Rights (26%), Arts & Culture (26%), Philanthropy (16%).
Who are Heyday Foundation's largest grantees?
By total granted over FY2017 to FY2025: National Redistricting Foundation ($385k), Meridian International Center ($334k), Pen American Center Inc ($267k).
Does Heyday Foundation fund new organizations?
In FY2024, 26% of the organizations it funded were first-time grantees.
Does Heyday Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Heyday Foundation?
Its strongest co-funders, measured against what their size predicts, include The Goldman Sachs Charitable Gift Fund, The Ford Foundation, The New York Community Trust.
Where is Heyday Foundation based?
Heyday Foundation is based in NY.

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

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