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New Jersey · Private foundation

Mariposa Foundation Inc

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.

$5.2M
Granted FY2024(still arriving)
41
Grants FY2024
34
Organizations funded FY2023
15%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$100,000
Largest grant, FY2024
$600,000
Organizations funded a year
31 to 51
FY2017 to FY2023
States reached, FY2024
5
Total assets, FY2024
$77M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 15% of the organizations Mariposa Foundation Inc funded were first-time grantees, receiving 9% of its grant dollars.

New vs renewed · share of each year

In FY2023, 91% of grant dollars renewed an existing relationship; $375k went to new ones.

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

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

’18’19’20’21’22’23
Arts & CultureEducationFood & NutritionEnvironmentPublic BenefitCrime & LegalOther
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
FY2024still arriving38$5.0M8%
FY202334$4.4M15%
FY202231$4.9M19%
FY202142$4.7M19%
FY202051$5.8M39%
FY201933$5.1M12%
FY201845$5.1M22%
FY201746$5.0Mn/a
97% classified

What it funded, over time

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

Environment$8.7MArts & Culture$6.2MEducation$5.0MCivil Rights$3.6MHealth$3.5MPhilanthropy$2.5MFood & Nutrition$2.4MCrime & Legal$2.2MOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WA
NY
OR
NJ
CT
RI
CA
UT
CO
NC
DC
LA
AL
TX

Top grantees

Largest recipients by total granted, FY2017 to FY2024, and the share of each one’s budget the grants supplied at peak.

Show all 73 grantees
All grantees of Mariposa Foundation Inc by total granted
GranteeTotal grantedYearsShare of their budget
Natural Resources Defense Council Inc$5,950,00081%
American Museum of Natural History$3,077,00070%
Read to Lead Inc$2,025,000512%
Pro Publica Inc$1,850,00081%
Environmental Defense Fund Incorporated$1,750,00050%
NEO Philanthropy Inc$1,750,00060%
Planned Parenthood Federation of America Inc$1,600,00080%
Food Bank for New York City$1,285,00080%
Everytown for Gun Safety Support Fund Inc$1,110,00081%
Wildlife Conservation Society$1,035,00070%
American Civil Liberties Union Foundation Inc$1,000,00040%
Make the Road New York$925,00081%
City Harvest Inc$860,00080%
Ocean Conservancy$830,00080%
The Corporation of Yaddo$667,00037%
Brady Center to Prevent Gun Violence$650,00061%
Medecins Sans Frontieres USA Inc$625,00080%
International Rescue Committee INC$550,00030%
Green City Force Inc$550,00082%
Purpose Foundation$535,00024%
Sarah Lawrence College$500,00010%
Red Hook Initiative$415,00082%
Center for Popular Democracy Inc$400,00070%
William J Brennan Center for Justice Inc$375,00080%
Riverdale Country School Inc$375,00060%
The Allen-Stevenson School$335,00021%
Safe Passage Project Corporation$275,00042%
Center for Educational Innovation Inc$200,00021%
SD Foundation$200,00021%
Ascendus Inc$200,00041%
Reproductive Freedom for All Foundation$200,00021%
The Queens Library Foundation Inc$190,00043%
Brooklyn Public Library$190,00040%
The Gilder Lehrman Institute of American History$140,00070%
The Fortune Society Inc$140,00050%
Path$125,00020%
Hispanic Federation Inc$125,00020%
The New York Public Library Astor Lenox and Tilden Foundations$120,00030%
Echoing Green Inc$100,00012%
World Central Kitchen Inc$100,00020%
Center for Humane Technology$100,00013%
Superhumans Ukraine Inc$100,00021%
Museum of Modern Art$95,00040%
Sunrise Movement Education Fund$70,00020%
Citymeals-On-Wheels$60,00050%
Fund for Public Health in New York Inc$50,00010%
Community Food Advocates Inc$50,000112%
American National Red Cross & Its Constituent Chapters and Branches$50,00010%
Southern Poverty Law Center Inc$50,00020%
Food Finders Inc$50,00010%
Brooklyn Academy of Music Inc$50,00010%
The Marshall Project Inc$40,00020%
US Association for International Migration$30,00011%
Silver Hill Hospital Inc$30,00030%
New York Foundation for the Arts Inc$25,00010%
Foundation for Contemporary Arts Inc$25,00010%
Northern Manhattan Coalition For Immigrant Rights$25,00012%
The Film Collaborative Inc$25,00011%
Asheville City Schools Foundation Inc$25,00012%
Gramercy Park Block Assoc Inc$25,00032%
The Center for Public Integrity$25,00010%
The Campaign Against Hunger Inc$20,04020%
The Brooklyn Institute of Arts and Sciences$20,00010%
Whitney Museum of American Art$20,00010%
Thousand Currents$20,00010%
Pen American Center Inc$15,00010%
New York Hall of Science$10,00010%
The Young Men's Christian Association of Greater New Orleans Louisiana$10,00010%
The Preemptive Love Coalition$10,00010%
The River Fund New York Inc$10,00010%
Culture Push Inc$10,00019%
Garden of Dreams Foundation$5,00010%
Prospect Park Alliance Inc$4,12810%

What it could do for these grantees

Plus 29 recipients with no EIN on record ($5.5M), not named here.

Where it is load-bearing

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetNatural Resources Defense Council Inc: $5,950,000 over 8y, 0.5% of budgetAmerican Museum of Natural History: $3,077,000 over 7y, 0.4% of budgetRead to Lead Inc: $2,025,000 over 5y, 12% of budgetPro Publica Inc: $1,850,000 over 8y, 0.8% of budgetEnvironmental Defense Fund Incorporated: $1,750,000 over 5y, 0.3% of budgetNEO Philanthropy Inc: $1,750,000 over 6y, 0.4% of budgetPlanned Parenthood Federation of America Inc: $1,600,000 over 8y, 0.1% of budgetFood Bank for New York City: $1,285,000 over 8y, 0.4% of budgetEverytown for Gun Safety Support Fund Inc: $1,110,000 over 8y, 0.5% of budgetWildlife Conservation Society: $1,035,000 over 7y, 0.1% of budgetAmerican Civil Liberties Union Foundation Inc: $1,000,000 over 4y, 0.2% of budgetMake the Road New York: $925,000 over 8y, 0.5% of budgetCity Harvest Inc: $860,000 over 8y, 0.1% of budgetOcean Conservancy: $830,000 over 8y, 0.4% of budgetThe Corporation of Yaddo: $667,000 over 3y, 6.7% of budgetBrady Center to Prevent Gun Violence: $650,000 over 6y, 1.3% of budgetMedecins Sans Frontieres USA Inc: $625,000 over 8y, 0.0% of budgetInternational Rescue Committee INC: $550,000 over 3y, 0.0% of budgetGreen City Force Inc: $550,000 over 8y, 2.1% of budgetPurpose Foundation: $535,000 over 2y, 3.9% of budgetSarah Lawrence College: $500,000 over 1y, 0.4% of budgetRed Hook Initiative: $415,000 over 8y, 1.8% of budgetCenter for Popular Democracy Inc: $400,000 over 7y, 0.3% of budgetWilliam J Brennan Center for Justice Inc: $375,000 over 8y, 0.2% of budgetRiverdale Country School Inc: $375,000 over 6y, 0.2% of budgetThe Allen-Stevenson School: $335,000 over 2y, 0.6% of budgetSafe Passage Project Corporation: $275,000 over 4y, 1.7% of budgetCenter for Educational Innovation Inc: $200,000 over 2y, 1.2% of budgetSD Foundation: $200,000 over 2y, 1.3% of budgetAscendus Inc: $200,000 over 4y, 0.7% of budgetReproductive Freedom for All Foundation: $200,000 over 2y, 0.7% of budgetThe Queens Library Foundation Inc: $190,000 over 4y, 2.7% of budgetBrooklyn Public Library: $190,000 over 4y, 0.1% of budgetThe Gilder Lehrman Institute of American History: $140,000 over 7y, 0.3% of budgetThe Fortune Society Inc: $140,000 over 5y, 0.1% of budgetPath: $125,000 over 2y, 0.0% of budgetHispanic Federation Inc: $125,000 over 2y, 0.3% of budgetThe New York Public Library Astor Lenox and Tilden Foundations: $120,000 over 3y, 0.0% of budgetEchoing Green Inc: $100,000 over 1y, 1.6% of budgetWorld Central Kitchen Inc: $100,000 over 2y, 0.0% of budgetCenter for Humane Technology: $100,000 over 1y, 2.8% of budgetSuperhumans Ukraine Inc: $100,000 over 2y, 0.8% of budgetMuseum of Modern Art: $95,000 over 4y, 0.0% of budgetSunrise Movement Education Fund: $70,000 over 2y, 0.2% of budgetCitymeals-On-Wheels: $60,000 over 5y, 0.1% of budgetFund for Public Health in New York Inc: $50,000 over 1y, 0.1% of budgetCommunity Food Advocates Inc: $50,000 over 1y, 12% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $50,000 over 1y, 0.0% 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 73.

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.

Jewish Communal FundNY21.9× affinity12 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · The New York Community Trust · The Goldman Sachs Charitable Gift Fund · The Howard Gilman Foundation Inc · Select Equity Group Foundation · Robin Hood Foundation · Mother Cabrini Health Foundation Inc · Silicon Valley Community Foundation · The Vidda Foundation · Booth Ferris Foundation Xxxxx4008 · Pinkerton Foundation · The Jm Kaplan Fund 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.

Compare Mariposa Foundation Inc with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Mariposa Foundation Inc?

Find your warmest path to Mariposa Foundation Inc 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 Mariposa Foundation Inc

How much does Mariposa Foundation Inc give?
Mariposa Foundation Inc reported 41 grants totaling $5,215,000 in its FY2024 IRS filing. It funded between 31 and 51 organizations a year over FY2017 to FY2023.
What does Mariposa Foundation Inc fund?
By grant dollars over FY2017 to FY2024, its largest causes are Environment (21%), Arts & Culture (15%), Education (12%).
Who are Mariposa Foundation Inc's largest grantees?
By total granted over FY2017 to FY2024: Natural Resources Defense Council Inc ($6.0M), American Museum of Natural History ($3.1M), Read to Lead Inc ($2.0M).
Does Mariposa Foundation Inc fund new organizations?
In FY2023, 15% of the organizations it funded were first-time grantees.
Does Mariposa Foundation Inc 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 Mariposa Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include Jewish Communal Fund, The New York Community Trust, The Goldman Sachs Charitable Gift Fund.
Where is Mariposa Foundation Inc based?
Mariposa Foundation Inc is based in NJ.

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 109 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

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