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California · Private foundation

The Platt Family 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.

$93k
Granted FY2025(still arriving)
22
Grants FY2025
16
Organizations funded FY2024
56%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$4,000
Largest grant, FY2025
$12,000
Organizations funded a year
3 to 16
FY2018 to FY2024
States reached, FY2025
9
Total assets, FY2025
$4.0M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 56% of the organizations The Platt Family Foundation funded were first-time grantees, receiving 65% of its grant dollars.

New vs renewed · share of each year

In FY2024, 35% of grant dollars renewed an existing relationship; $413k 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
HealthArts & CultureEducationReligionYouth DevelopmentCivil RightsOther
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 arriving21$90k48%
FY202416$638k56%
FY20236$222k50%
FY202215$518k67%
FY202113$490k77%
FY20204$443k25%
FY201911$597k73%
FY20183$205k67%
97% classified

What it funded, over time

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

Education$1.9MArts & Culture$1.0MPhilanthropy$742kCrime & Legal$610kReligion$256kYouth Development$214kCivil Rights$207kHealth$133kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

MT
NY
MA
PA
CT
CA
VA
DC

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 33 grantees

What it could do for these grantees

Plus 24 recipients with no EIN on record ($1.5M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Platt Family Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetManhattan Class Company Inc: $1,000,000 over 5y, 4.5% of budgetHarvard-Westlake School: $315,000 over 2y, 0.1% of budgetNew York University: $200,000 over 1y, 0.0% of budgetFoundation for Jewish Camp Inc: $200,000 over 2y, 1.3% of budgetCamp Ramah in California Inc: $59,000 over 7y, 0.4% of budgetOhr Torah Stone Institutions of Israel: $50,000 over 1y, 0.7% of budgetUniversity of California San Francisco Foundation: $35,000 over 3y, 0.0% of budgetJq International: $28,000 over 1y, 3.9% of budgetExperience Camps: $19,000 over 3y, 0.2% of budgetNAMI National: $18,000 over 1y, 0.1% of budgetThe Inheiritance Project Ltd: $16,200 over 3y, 2.0% of budgetTrevor Project Inc: $14,000 over 2y, 0.0% of budgetJs Bryant School Inc: $14,000 over 2y, 2.4% of budgetPlanned Parenthood Federation of America Inc: $13,000 over 2y, 0.0% of budgetThe Actors' Fund of America: $10,000 over 2y, 0.0% of budgetEverytown for Gun Safety Support Fund Inc: $10,000 over 1y, 0.0% of budgetRosie's Theater Kids Inc: $9,000 over 1y, 0.4% of budgetBirthright Israel Foundation: $8,000 over 2y, 0.0% of budgetTeen Cancer America Inc: $8,000 over 1y, 0.8% of budgetQueer Nightlife Community Center: $8,000 over 1y, 2.3% of budget70 Faces Media Inc: $7,500 over 3y, 0.0% of budgetTranslifeline DBA Trans Lifeline: $7,000 over 1y, 0.1% of budgetHuman Rights Campaign Foundation: $7,000 over 1y, 0.0% of budgetNational Multiple Sclerosis Society: $6,800 over 2y, 0.0% of budgetIsrael Policy Forum Inc: $3,000 over 1y, 0.1% of budgetAmerican Jewish University: $3,000 over 1y, 0.0% of budgetShatterproof a Nonprofit Corporation: $1,200 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 27.

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 FundNY12× affinity4 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

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 The Platt Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Platt Family Foundation?

Find your warmest path to The Platt Family 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 The Platt Family Foundation

How much does The Platt Family Foundation give?
The Platt Family Foundation reported 22 grants totaling $92,600 in its FY2025 IRS filing. It funded between 3 and 16 organizations a year over FY2018 to FY2024.
What does The Platt Family Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (34%), Arts & Culture (19%), Philanthropy (14%).
Who are The Platt Family Foundation's largest grantees?
By total granted over FY2017 to FY2025: Manhattan Class Company Inc ($1.0M), Harvard-Westlake School ($315k), New York University ($200k).
Does The Platt Family Foundation fund new organizations?
In FY2024, 56% of the organizations it funded were first-time grantees.
Does The Platt Family 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 The Platt Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Jewish Communal Fund, Morgan Stanley Global Impact Funding Trust Inc, National Philanthropic Trust.
Where is The Platt Family Foundation based?
The Platt Family Foundation is based in CA.

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 61 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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