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California · Private foundation

Waldfogel 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.

$15k
Granted FY2023
7
Grants FY2023
7
Organizations funded FY2023
14%
First-time grantees FY2023
Read the full brief

Read this first · the figures below need context

85% of Waldfogel Family Foundation’s FY2025 grant dollars went to Massachusetts Institute Of Technology, not to grantees.

Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2025 names 6 organizations directly, so a portfolio cannot be read from it. Everything below is therefore FY2023, the last year Waldfogel Family Foundation named its own grantees at scale: 5 organizations, $15k. It is dated, not current.

Organizations named directly on the return

9
’17
6
’18
3
’19
7
’20
7
’21
5
’22
5
’23
2
’24
6
’25

Amber years are those where most dollars went to a sponsor.

Median grant, FY2023
$1,000
Largest grant, FY2023
$5,000
Organizations funded a year
7 to 15
FY2017 to FY2023
States reached, FY2023
2
Total assets, FY2023
$851k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 14% of the organizations Waldfogel Family Foundation funded were first-time grantees, receiving 7% of its grant dollars.

New vs renewed · share of each year

In FY2023, 93% of grant dollars renewed an existing relationship; $1k 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
EducationPublic BenefitOther
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
FY20237$15k14%
FY202212$120k0%
FY202115$166k13%
FY202013$265k8%
FY20197$162k14%
FY201810$76k10%
FY201715$153kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$730kArts & Culture$228kCivil Rights$52kHealth$31kAnimals$26kPublic Benefit$9kInternational$3kEnvironment$500

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 15 grantees

Plus 10 recipients with no EIN on record ($730k), not named here.

Where it is load-bearing

Waldfogel Family Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 14 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetEmbarcadero Institute: $75,000 over 2y, 50% of budgetSan Francisco Museum of Modern Art: $40,000 over 4y, 0.0% of budgetNexleaf Analytics: $30,000 over 5y, 0.2% of budgetGrabhorn Institute: $27,000 over 5y, 5.0% of budgetWhitney Museum of American Art: $25,000 over 1y, 0.0% of budgetSouthern Poverty Law Center Inc: $17,000 over 5y, 0.0% of budgetBlaine County Charitable Fund Inc: $9,000 over 5y, 1.2% of budgetHumane Society Silicon Valley: $6,250 over 8y, 0.0% of budgetSun Valley Summer Symphony Inc: $6,000 over 1y, 0.1% of budgetSound Equine Options: $5,000 over 1y, 0.7% of budgetHuman Rights Watch Inc: $2,500 over 1y, 0.0% of budgetAnimal Shelter of Wood River Valley Dba Mountain Humane: $1,000 over 1y, 0.0% of budgetChildren's Health Council Inc: $1,000 over 1y, 0.0% of budgetElizabeth F Gamble Garden: $500 over 2y, 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 14.

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.

Fidelity Investments Charitable Gift FundMA5.5× affinity6 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · 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 Waldfogel Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Waldfogel Family Foundation?

Find your warmest path to Waldfogel 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 Waldfogel Family Foundation

How much does Waldfogel Family Foundation give?
Waldfogel Family Foundation reported 7 grants totaling $14,500 in its FY2023 IRS filing. It funded between 7 and 15 organizations a year over FY2017 to FY2023.
What does Waldfogel Family Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (68%), Arts & Culture (21%), Civil Rights (5%).
Who are Waldfogel Family Foundation's largest grantees?
By total granted over FY2017 to FY2025: Embarcadero Institute ($75k), San Francisco Museum of Modern Art ($40k), Nexleaf Analytics ($30k).
Does Waldfogel Family Foundation fund new organizations?
In FY2023, 14% of the organizations it funded were first-time grantees.
Does Waldfogel 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 Waldfogel Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Fidelity Investments Charitable Gift Fund, Donor Advised Charitable Giving Inc, Amazonsmile Foundation.
Where is Waldfogel Family Foundation based?
Waldfogel 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 26 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 2023, released 2023. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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