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New York · Private foundation

Siegel Family Endowment

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.

$28M
Granted FY2024(still arriving)
91
Itemized grants FY2024
94
Organizations funded FY2023
64%
First-time grantees FY2023
Read the full brief
Itemized, FY2024
$25M
The rest is grants the schedule does not break out
Median grant, FY2024
$125,000
Largest grant, FY2024
$2,500,000
Organizations funded a year
70 to 94
FY2021 to FY2023
States reached, FY2024
18
Total assets, FY2024
$568M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 64% of the organizations Siegel Family Endowment funded were first-time grantees, receiving 52% of its grant dollars.

New vs renewed · share of each year

In FY2023, 48% of grant dollars renewed an existing relationship; $13M went to new ones.

50%100%’22’23
RenewedFirst-time

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

’22’23
EducationCommunity ImprovementHuman ServicesEmploymentArts & CultureCivil 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
FY2024still arriving87$22M57%
FY202394$24M64%
FY202292$19M54%
FY202170$18Mn/a
97% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.

Education$43MScience & Tech$15MPhilanthropy$9.7MCommunity Improvement$8.8MEmployment$5.2MSocial Science$3.8MArts & Culture$3.0MCivil Rights$1.6MOther$0

Top grantees

Largest recipients by total granted, FY2021 to FY2024, and the share of each one’s budget the grants supplied at peak.

Show all 115 grantees
All grantees of Siegel Family Endowment by total granted
GranteeTotal grantedYearsShare of their budget
Scratch Foundation$6,500,000417%
Cornell University$4,586,00030%
Khan Academy Inc$3,750,00044%
Pursuit Transformation Company Inc$3,000,000315%
NYC FIRST Inc$2,700,000338%
Robin Hood Foundation$2,567,76131%
New York City Foundation for Computer Science Education Inc D/B/A Csforall$1,400,000230%
Data & Society Research Institute Inc$1,200,00049%
Center for American Progress$1,100,00041%
The Carnegie Hall Corporation$1,100,00021%
Center on Rural Innovation Inc$1,000,000153%
Transcend Inc$1,000,00042%
Washington Center for Equitable Growth Inc$1,000,00044%
University of Chicago$1,000,00020%
New York Hall of Science$880,00042%
Techcongress Foundation$850,000311%
The National Design Alliance$780,000252%
Feedback Labs$760,000443%
The Knowledge House Fellowship Inc$750,00035%
Mozilla Foundation$750,00031%
Grove Collective Foundation$740,000334%
The Aspen Institute Inc$650,00040%
University of North Carolina at Chapel Hill$612,7002n/a
Summit Public Schools$600,00040%
Braven Inc$550,00031%
Building 21$500,00029%
Federation of American Scientists$500,000114%
COOP Careers Inc$500,00022%
Santa Fe Institute$480,00023%
Citizen Schools Inc$450,00023%
Regional Plan Association Inc$425,00033%
Jobs for the Future Inc$400,00020%
Center for Democracy and Technology$400,00022%
New York University$375,00010%
Alder Graduate School of Education$350,00031%
National Conference on Citizenship$350,00015%
Icafund$350,00016%
New Growth Innovation Network$350,000218%
Just Capital Foundation Inc$300,00031%
Rural Community Assistance Partnership Incorporated$275,00011%
Peer 2 Peer University Inc$275,000215%
Hoff-Barthelson Music School$259,00032%
Project Evident Inc$250,00012%
WGBH Educational Foundation$250,00020%
San Francisco General Hospital Foundation$250,00011%
Justfundus$250,00023%
Georgia Tech Foundation Inc$250,00010%
Arizona State University Foundation for a New American University$250,00010%
Society for Science & the Public$250,00011%
University Corporation at Monterey Bay$225,00010%
Govern for America Inc$200,00026%
New York STEM Cell Foundation Inc$200,00020%
New Schools Fund$200,00010%
For Inspiration and Recognition of Science and Technology (FIRST)$200,00020%
Last Mile Education Fund$200,00021%
Educopia Institute Inc$182,37525%
Project Invent$175,00037%
Urban Arts Partnership$175,00031%
Innovateedu Inc$150,00013%
Citizens Committee for New York City Inc$150,00023%
Neighborhood Trust Financial Partners Inc$150,00011%
Marcy Lab Inc$150,00014%
Responsible Innovation Labs Inc$150,00016%
Museum of Science$150,00010%
Computer Science Teachers Association LLC$150,00012%
Economic Policy Institute$150,00011%
Mass Design Group Ltd$150,00011%
Trustees of Boston College$150,00010%
STEM Teachers of New York City Inc$125,000311%
Project Tomorrow$125,000212%
Join Freeworld Inc$100,0001n/a
New America Foundation$100,00010%
Georgetown University$100,00010%
Candid$100,00010%
Kipp New York Inc$100,00010%
Creative Commons Corporation$75,00022%
Ripple Effect Water Literacy Project$75,000170%
The Modern Classrooms Project Inc$75,00011%
Portland State University Foundation$50,00010%
Innovation for Equity Inc$50,00019%
1up Coaching$50,000140%
CommunityShare$50,0001n/a
National Museum of Mathematics$32,50020%
Knology Ltd$29,50012%
Hypothekids Inc$25,00014%
Friends of the High Line Inc$25,00010%
Clay Art Center Inc$20,00021%
Food Bank for New York City$15,60010%
Ali Forney Center Inc$15,00010%
Projects With Care Inc$12,00012%
Hillside Food Outreach Inc$10,52011%
Meto Inc$10,49513%
Hispanic Resource Center of Larchmont/Mamaroneck Inc$10,00010%
Westchester Community Opportunity Program Inc$10,00010%
Artest Foundation$10,0001n/a
The Coalition for the Homeless Inc$10,00010%
Brooklyn Public Library$10,00010%
The Loomis Institute D/B/A the Loomis Chaffee School$10,00010%
Union for Reform Judaism$6,1802n/a
Scarsdale High School PTA$6,04632%
United Jewish Appeal-Federation of Jewish Philanthropies of New York Inc$5,00010%
Youth Passion Project$2,0002n/a
Scarsdale Adult School Inc$1,70040%
Physicians for Human Rights Inc$1,50010%
National Domestic Workers Alliance Inc$1,03310%
Room to Grow National Inc$1,03010%
Women for Afghan Women Inc$1,03010%
Marty's Place Senior Dog Sanctuary$1,00010%
American Friends Service Committee$1,0001n/a
Seven Stories Institute$1,00010%
Chabad Lubavitch on Campus- Princeton$5401n/a
New York Road Runners Inc$50010%
Scarsdale Volunteer Ambulance Corps Inc$40640%
Scarsdale Foundation$40040%
The Scarsdale Historical Society$40040%

What it could do for these grantees

Plus 115 recipients with no EIN on record ($29M), not named here.

Where it is load-bearing

Siegel Family Endowment supplied at least a quarter of the budget for 8 of its grantees at some point. The chart plots its 107 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetScratch Foundation: $6,500,000 over 4y, 17% of budgetCornell University: $4,586,000 over 3y, 0.0% of budgetKhan Academy Inc: $3,750,000 over 4y, 3.6% of budgetPursuit Transformation Company Inc: $3,000,000 over 3y, 15% of budgetNYC FIRST Inc: $2,700,000 over 3y, 38% of budgetRobin Hood Foundation: $2,567,761 over 3y, 0.9% of budgetNew York City Foundation for Computer Science Education Inc D/B/A Csforall: $1,400,000 over 2y, 30% of budgetData & Society Research Institute Inc: $1,200,000 over 4y, 9.1% of budgetCenter for American Progress: $1,100,000 over 4y, 0.7% of budgetThe Carnegie Hall Corporation: $1,100,000 over 2y, 1.0% of budgetCenter on Rural Innovation Inc: $1,000,000 over 1y, 53% of budgetTranscend Inc: $1,000,000 over 4y, 1.5% of budgetWashington Center for Equitable Growth Inc: $1,000,000 over 4y, 4.0% of budgetUniversity of Chicago: $1,000,000 over 2y, 0.0% of budgetNew York Hall of Science: $880,000 over 4y, 2.0% of budgetTechcongress Foundation: $850,000 over 3y, 11% of budgetThe National Design Alliance: $780,000 over 2y, 52% of budgetFeedback Labs: $760,000 over 4y, 43% of budgetThe Knowledge House Fellowship Inc: $750,000 over 3y, 5.1% of budgetMozilla Foundation: $750,000 over 3y, 0.8% of budgetGrove Collective Foundation: $740,000 over 3y, 34% of budgetThe Aspen Institute Inc: $650,000 over 4y, 0.1% of budgetSummit Public Schools: $600,000 over 4y, 0.3% of budgetBraven Inc: $550,000 over 3y, 0.9% of budgetBuilding 21: $500,000 over 2y, 9.0% of budgetFederation of American Scientists: $500,000 over 1y, 14% of budgetCOOP Careers Inc: $500,000 over 2y, 1.9% of budgetSanta Fe Institute: $480,000 over 2y, 2.6% of budgetCitizen Schools Inc: $450,000 over 2y, 2.5% of budgetRegional Plan Association Inc: $425,000 over 3y, 3.1% of budgetJobs for the Future Inc: $400,000 over 2y, 0.3% of budgetCenter for Democracy and Technology: $400,000 over 2y, 2.2% of budgetNew York University: $375,000 over 1y, 0.0% of budgetAlder Graduate School of Education: $350,000 over 3y, 0.7% of budgetNational Conference on Citizenship: $350,000 over 1y, 5.2% of budgetIcafund: $350,000 over 1y, 6.4% of budgetNew Growth Innovation Network: $350,000 over 2y, 18% of budgetJust Capital Foundation Inc: $300,000 over 3y, 1.0% of budgetRural Community Assistance Partnership Incorporated: $275,000 over 1y, 1.1% of budgetPeer 2 Peer University Inc: $275,000 over 2y, 15% of budgetHoff-Barthelson Music School: $259,000 over 3y, 2.4% of budgetProject Evident Inc: $250,000 over 1y, 2.4% of budgetWGBH Educational Foundation: $250,000 over 2y, 0.1% of budgetSan Francisco General Hospital Foundation: $250,000 over 1y, 0.6% of budgetJustfundus: $250,000 over 2y, 2.5% of budgetGeorgia Tech Foundation Inc: $250,000 over 1y, 0.1% of budgetArizona State University Foundation for a New American University: $250,000 over 1y, 0.1% of budgetSociety for Science & the Public: $250,000 over 1y, 0.9% 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 107.

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.

Gates FoundationWA32.4× affinity17 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Gates Foundation · The William & Flora Hewlett Foundation · The Ford Foundation · Silicon Valley Community Foundation · The Goldman Sachs Charitable Gift Fund · New Schools Fund · New Venture Fund · Jewish Communal Fund · The New York Community Trust · Tides Foundation · The Robert Wood Johnson Foundation · John S and James L Knight 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 Siegel Family Endowment with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Siegel Family Endowment?

Find your warmest path to Siegel Family Endowment 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 Siegel Family Endowment

How much does Siegel Family Endowment give?
Siegel Family Endowment reported 91 itemized grants totaling $24,877,258, out of $27,792,259 in total grant expense reported on the return in its FY2024 IRS filing. It funded between 70 and 94 organizations a year over FY2021 to FY2023.
What does Siegel Family Endowment fund?
By grant dollars over FY2021 to FY2024, its largest causes are Education (34%), Science & Tech (12%), Philanthropy (8%).
Who are Siegel Family Endowment's largest grantees?
By total granted over FY2021 to FY2024: Scratch Foundation ($6.5M), Cornell University ($4.6M), Khan Academy Inc ($3.8M).
Does Siegel Family Endowment fund new organizations?
In FY2023, 64% of the organizations it funded were first-time grantees.
Does Siegel Family Endowment 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 Siegel Family Endowment?
Its strongest co-funders, measured against what their size predicts, include Gates Foundation, The William & Flora Hewlett Foundation, The Ford Foundation.
Where is Siegel Family Endowment based?
Siegel Family Endowment 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 238 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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