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· Private foundation

The William & Sylvia Silberstein 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.

$622k
Granted FY2024still arriving
45
Grants FY2024still arriving
12
States reached
$113k
Largest
01What it funds
0196% classified

What it funded, over time

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

Health$2.0MAnimals$1.0MEducation$674kReligion$359kHuman Services$333kFood & Nutrition$271kCivil Rights$267kArts & Culture$158kOther$0
02FY2024 · 45 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k30 grants · $103k
  • $10k–50k12 grants · $256k
  • $50k–250k3 grants · $263k
$5,000
Median grant
12
States reached
$12M
Total assets
Largest grants
RecipientAmount
CYSTIC FIBROSIS FOUNDATION$113,000
ASPCA$100,000
NYU MEDICAL CENTER$50,000
THE FOUNDATION TO COMBAT ANTISEMITISM$37,000
FRIENDS OF ISRAEL DEFENSE FORCES$35,000
RYE COUNTRY DAY SCHOOL$25,000
KING LOW HEYWOOD THOMAS SCHOOL$25,000
AMERICAN HEART ASSOCIATION$25,000
TEMPLE EMANU-EL$20,000
DARTMOUTH COLLEGE$20,000
AMERICAN RED CROSS$20,000
THE FOODBANK OF LOWER FAIRFIELD COUNTY$15,000
ANTI-DEFAMATION LEAGUE$14,000
THE 122 EAST 66TH ST FOUNDATION$10,000
NEW YORK CITY BALLET$10,000
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY17–24, $72k) land where the poverty rate runs at 12%, against an area that typically sits at 10%. 43% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 10%PROJECT HELP: $5k → 6%CENTER FOR SAFETY AND CHANGE: $4k → 14%CENTER FOR SAFETY AND CHANGE: $3k → 14%CENTER FOR SAFETY AND CHANGE: $3k → 14%WORLD FOOD PROGRAM USA: $3k → 14%PORT CHESTER CARVER CENTER: $17k → 9%THE LUSTGARTEN FOUNDATION: $3k → 6%PORT CHESTER CARVER CENTER: $10k → 9%PORT CHESTER CARVER CENTER: $2k → 9%GUIDING EYES FOR THE BLIND: $2k → 9%GUIDING EYES FOR THE BLIND: $1k → 9%GUIDING EYES FOR THE BLIND: $1k → 9%ROOM TO GROW: $10k → 17%ROOM TO GROW: $5k → 17%ROOM TO GROW: $4k → 17%DOMESTIC VIOLENCE CRISIS CENTER: $1k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
VT
NH
WA
IL
WI
NY
MA
PA
NJ
CT
CA
CO
NE
MO
VA
MD
AZ
TN
DC
OK
GA
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

94%of every dollar goes to organizations it has funded before.
$5.2M · 83 repeat orgs$333k to everyone else

Grantees it renews have grown median revenue +33% since the first grant, against +4% for those funded once.

83 repeat relationships: 40 still active in FY2024, 43 since wound down; 4 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

83
50

Total granted

$5.2M
$253k

Median revenue growth · since first grant

+33%
+4%

Still filing today

55%
60%

New vs renewed · share of each year

In FY2024, 87% of grant dollars renewed an existing relationship; $80k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

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

’17’18’19’20’21’22’23’24
HealthInternationalHuman ServicesArts & CulturePhilanthropyEducationOther
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.

Backed again, and grew

  • CF
    CYSTIC FIBROSIS FOUNDATION
    7× · 2017–2024 · $902k · revenue +29%
  • TA
    THE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS
    8× · 2017–2024 · $900k · revenue +80%
  • RC
    RYE COUNTRY DAY SCHOOL
    8× · 2017–2024 · $293k · revenue +26%

Funded once

  • AJ
    AMERICAN JEWISH CONGRESS INC
    one grant, 2022 · $24k · revenue -74%
  • UNITED STATES FUND FOR UNICEF
    one grant, 2022 · $20k · revenue -21%
  • HF
    HABITAT FOR HUMANITY INC
    one grant, 2017 · $10k
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
2
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
3
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
4
The Children's Hospital of Philadelphia

The children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…

Health
5
Cornell University

Education, research, medical services and other public services.

Education
6
The Graduate Center Foundation Inc

The graduate center foundation is committed to promoting and safe-guarding the success of the graduate center by raising funds and managing and investing donations for use by the graduate center. the board of trustees of the foundation…

—
7
Food Allergy Science Initiative Inc

To accelerate the development of breakthrough discoveries that will transform the lives of people living with food allergies.

—
8
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
9
The Susan G Komen Breast Cancer Fdn Group

Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.

—
10
World Wildlife Fund Inc

Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)

Environment
11
Council On Foreign Relations Inc

The council on foreign relations (cfr) is an independent, nonpartisan membership organization, think tank, and publisher dedicated to being a resource for its members, government officials, business executives, journalists, educators and…

International
12
The United States Holocaust Memorial Museum

Chartered by a unanimous act of congress, the museum is america's national institution for the documentation, study, interpretation, and education of holocaust history and serves as our country's memorial to the victims of the holocaust.…

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is The Partnership to End Homelessness Inc; the most unlike its peers is Foundation to Combat Anti-Semitism Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

86 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 86 of the 140 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
9
Early backer (in before they grew)
83/86
Grantees still filing
59/86
Grew since first funded

Where the money sits, by cause and then by grantee

TEMPLE EMANU-EL: $270,000 · OtherTEMPLE EMANU-ELNYU MEDICAL CENTER: $240,000 · OtherNYU MEDICAL CENTERKIDS IN CRISIS INC: $87,500 · OtherAMERICAN CANCER SOCIETY: $81,000 · OtherNYU SCHOOL OF MEDICINE: $80,000 · OtherSHARE OUR STRENGTH: $78,000 · OtherOPIN OUTREACH TO PETS IN NEED: $75,500 · OtherSOUNDWATERS INC: $80,500 · Other+95 more: $1,116,090 · Other+95 moreCYSTIC FIBROSIS FOUNDATION: $902,480 · HealthCYSTIC FIBROSIS FOUNDATIONMONTEFIORE MEDICAL CENTER: $252,040 · HealthMONTEFIORE MEDICAL CENTERAmerican Heart Association Inc: $167,500 · HealthAmerican Heart Association In…ST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $67,500 · Health+10 more: $74,000 · HealthTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $900,000 · AnimalsTHE AMERICAN SOCIE…+3 more: $3,500 · AnimalsRYE COUNTRY DAY SCHOOL: $293,000 · EducationRYE COUNTRY…KING SCHOOL INC: $190,000 · EducationKING SCHOOL…Trustees of Dartmouth College: $64,000 · EducationTrustees of…+4 more: $19,250 · EducationANTI-DEFAMATION LEAGUE: $193,400 · Civil RightsFOUNDATION TO COMBAT ANTI-SEMITISM INC: $37,000 · Civil RightsTHE FOOD BANK OF LOWER FAIRFIELD COUNTY INC: $115,000 · Food & NutritionCITY HARVEST INC: $25,000 · Food & NutritionNEW YORK COMMON PANTRY: $19,000 · Food & NutritionCITYMEALS-ON-WHEELS: $10,000 · Food & NutritionNEW YORK CITY BALLET INC: $80,000 · Arts & CultureNew York Historical Society: $42,000 · Arts & CultureMETROPOLITAN MUSEUM OF ART: $15,000 · Arts & CultureEND ALLERGIES TOGETHER INC: $11,000 · Arts & Culture+2 more: $7,000 · Arts & Culture
Other$2,108,590Health$1,463,520Animals$903,500Education$566,250Civil Rights$230,400Food & Nutrition$169,000Arts & Culture$155,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCYSTIC FIBROSIS FOUNDATION: $902,480 over 7y, 0.1% of budgetTHE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS: $900,000 over 8y, 0.1% of budgetRYE COUNTRY DAY SCHOOL: $293,000 over 8y, 0.1% of budgetMONTEFIORE MEDICAL CENTER: $252,040 over 6y, 0.0% of budgetANTI-DEFAMATION LEAGUE: $193,400 over 4y, 0.3% of budgetKING SCHOOL INC: $190,000 over 8y, 0.1% of budgetAmerican Heart Association Inc: $167,500 over 7y, 0.0% of budgetTHE FOOD BANK OF LOWER FAIRFIELD COUNTY INC: $115,000 over 8y, 0.6% of budgetKIDS IN CRISIS INC: $87,500 over 8y, 0.4% of budgetSOUNDWATERS INC: $80,500 over 8y, 1.1% of budgetNEW YORK CITY BALLET INC: $80,000 over 8y, 0.0% of budgetSHARE OUR STRENGTH: $78,000 over 5y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $67,500 over 5y, 0.0% of budgetTrustees of Dartmouth College: $64,000 over 6y, 0.0% of budgetNew York Historical Society: $42,000 over 5y, 0.0% of budgetFOUNDATION TO COMBAT ANTI-SEMITISM INC: $37,000 over 1y, 0.0% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $35,000 over 1y, 0.0% of budgetCHILD GUIDANCE CENTER OF SOUTHERN CONNECTICUT INC: $30,000 over 4y, 0.2% of budgetPORT CHESTER CARVER CENTER INC: $28,500 over 3y, 0.5% of budgetCITY HARVEST INC: $25,000 over 4y, 0.0% of budgetAMERICAN JEWISH CONGRESS INC: $24,000 over 1y, 2.2% of budgetTHE SAMBURU PROJECT INC: $23,400 over 4y, 1.1% of budgetFAMILY SERVICES OF WESTCHESTER INC: $20,000 over 3y, 0.0% of budgetUNITED STATES FUND FOR UNICEF: $20,000 over 1y, 0.0% of budgetBOYS & GIRLS CLUB OF MOUNT VERNON INC: $20,000 over 3y, 1.2% of budgetNEW YORK COMMON PANTRY: $19,000 over 3y, 0.1% of budgetROOM TO GROW NATIONAL INC: $19,000 over 3y, 0.2% of budgetWESTCHESTER COUNTY BAR FOUNDATION: $17,500 over 4y, 6.7% of budgetLETS WIN PANCREATIC CANCER FOUNDATION: $16,500 over 5y, 0.9% of budgetMETROPOLITAN MUSEUM OF ART: $15,000 over 2y, 0.0% of budgetCHILDREN'S THERAPY CENTER: $13,500 over 3y, 0.1% of budgetNATIONAL CHILDREN'S ALLIANCE INC: $12,640 over 2y, 0.0% of budgetYMCA OF CENTRAL AND NORTHERN WESTCHESTER NY INC: $12,500 over 3y, 0.1% of budgetBOYS & GIRLS CLUB OF STAMFORD INC: $11,000 over 2y, 0.1% of budgetEND ALLERGIES TOGETHER INC: $11,000 over 3y, 1.3% of budgetTHE PARTNERSHIP TO END HOMELESSNESS INC: $10,000 over 1y, 0.3% of budgetSave The Children Federation Inc: $10,000 over 1y, 0.0% of budgetLenox Hill Hospital: $10,000 over 1y, 0.0% of budgetROBIN HOOD FOUNDATION: $10,000 over 1y, 0.0% of budgetCITYMEALS-ON-WHEELS: $10,000 over 1y, 0.0% of budgetFEEDING WESTCHESTER INC: $9,000 over 3y, 0.0% of budgetTHE CTC ACADEMY INC: $9,000 over 2y, 0.0% of budgetCENTER FOR SAFETY & CHANGE INC: $9,000 over 3y, 0.1% of budgetNATIONAL ARBOR DAY FOUNDATION: $8,000 over 2y, 0.0% of budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $7,500 over 2y, 0.0% of budgetInternational Rescue Committee INC: $7,000 over 3y, 0.0% of budgetUNIVERSITY OF VERMONT AND STATE AGRICULTURAL COLLEGE FOUNDATION INC: $6,250 over 2y, 0.0% of budgetTHE SUDC FOUNDATION: $6,000 over 2y, 0.5% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds CYSTIC FIBROSIS FOUNDATION ↗
  • Who funds THE AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS ↗
  • Who funds RYE COUNTRY DAY SCHOOL ↗
  • Who funds MONTEFIORE MEDICAL CENTER ↗
  • Who funds ANTI-DEFAMATION LEAGUE ↗
  • Who funds KING SCHOOL INC ↗
  • Who funds American Heart Association Inc ↗
  • Who funds THE FOOD BANK OF LOWER FAIRFIELD COUNTY INC ↗
  • Who funds KIDS IN CRISIS INC ↗
  • Who funds SOUNDWATERS INC ↗
  • Who funds NEW YORK CITY BALLET INC ↗
  • Who funds SHARE OUR STRENGTH ↗
  • Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
  • Who funds Trustees of Dartmouth College ↗
  • Who funds New York Historical Society ↗
  • Who funds FOUNDATION TO COMBAT ANTI-SEMITISM INC ↗
  • Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
  • Who funds CHILD GUIDANCE CENTER OF SOUTHERN CONNECTICUT INC ↗
  • Who funds PORT CHESTER CARVER CENTER INC ↗
  • Who funds CITY HARVEST INC ↗
  • Who funds AMERICAN JEWISH CONGRESS INC ↗
  • Who funds THE SAMBURU PROJECT INC ↗
  • Who funds FAMILY SERVICES OF WESTCHESTER INC ↗

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 New York Community TrustNY21.1× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The New York Community Trust · Jewish Communal Fund · Select Equity Group Foundation · Synchrony Foundation · The Goldman Sachs Charitable Gift Fund · American Express Foundation · Jpmorgan Chase Foundation · Mbia Foundation · Pcsb Community Foundation · Peoples United Community Foundation · The Bessemer Giving Fund · Mother Cabrini Health Foundation 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.

How much its grantees rely on government

Each dot is one organization The William & Sylvia Silberstein Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The William & Sylvia Silberstein Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 70%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 30%
  • Kids in Crisis Inc: 49% of income from government
  • Save the Sound: 37% of income from government
  • Save the Children Federation Inc: 30% of income from government
  • Boys & Girls Club of Stamford Inc: 17% of income from government
  • Domestic Violence Crisis Center: 10% of income from government
  • Soundwaters Inc: 4% of income from government
no gov moneyreceives it· size = income
7get no government money at all
19report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The William & Sylvia Silberstein Foundation Inc?

Find your warmest path to The William & Sylvia Silberstein 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.

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 140 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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