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Silberstein-Boesky Family Foundation Inc at a glance

· Private foundation

Silberstein-Boesky Family 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.

$450
Granted FY2024still arriving
3
Grants FY2024still arriving
2
States reached
$250
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

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

Youth Development$900kHealth$103kHuman Services$21kArts & Culture$21kEnvironment$6kPublic Safety & Disaster$5kHousing & Shelter$1kRecreation & Sports$1kOther$0
02FY2024 · 3 grants

Where the money goes

Grants by size, and the largest recipients.

$100
Median grant
2
States reached
$14k
Total assets
Largest grants
RecipientAmount
LA JOLLA COUNTRY DAY SCHOOL$250
LEWISBORO LAND TRUST$100
COVENANT HOUSE$100
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 (FY20–24, $20k) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%COVENANT HOUSE: $100 → 17%NEIGHBORS LINK: $10k → 9%NEIGHBORS LINK: $10k → 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.
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.

98%of every dollar goes to organizations it has funded before.
$1.0M · 5 repeat orgs$20k to everyone else

5 repeat relationships: 1 still active in FY2024, 4 since wound down; 2 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
18

Total granted

$1.0M
$20k

Median revenue growth · since first grant

+15%
+16%

Still filing today

100%
67%

New vs renewed · share of each year

In FY2024, 22% of grant dollars renewed an existing relationship; $350 went to new ones.

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

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

’20’21’22’23’24
HealthArts & CultureHuman ServicesEnvironmentYouth DevelopmentPhilanthropyOther
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

  • BG
    BOYS & GIRLS CLUB OF NORTHERN WESTCHESTER
    4× · 2020–2023 · $900k · revenue +15%
  • NL
    NEIGHBORS LINK CORP
    2× · 2020–2021 · $20k · revenue +168%
  • CH
    COPLAND HOUSE INC
    4× · 2020–2023 · $18k · revenue +109%

Funded once

  • WL
    Westchester Land Trust Incgraduated
    one grant, 2020 · $5k · revenue +93%
  • TP
    THE PRESERVATION SOCIETY OF NEWPORT COUNTYgraduated
    one grant, 2021 · $1k · revenue +150%
  • MK
    MOUNT KISCO VOLUNTEER AMBULANCE CORP
    one grant, 2023 · $1k
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 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
2
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
3
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
4
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
5
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
6
New York Botanical Garden

The new york botanical garden is a museum of plants and a scientific research center devoted to the study of plants and their uses. it is the garden's mission to improve public understanding of the natural world, horticulture, and the…

Environment
7
New York Hall of Science

Nysci's mission is to nurture generations of passionate learners, critical thinkers, and active citizens through design make play - an approach to learning and engagement that is deeply rooted in research on stem learning and guides the…

Arts & Culture
8
Cornell University

Education, research, medical services and other public services.

Education
9
Western New England University

Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…

Education
10
Neurology Associates of Stony Brook University Faculty Practice Corp

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
11
Public Media Nj Inc

To bring quality public television programs and resources to communities throughout new jersey and its tri-state neighbors. its content, both on-air and online, aims to reflect the diverse

Arts & Culture
12
University Associates in Obstetrics and Gynecology University Faculty Pract ice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
How this is measured
The grantee most central to the portfolio’s shape is March of Dimes Inc; the most unlike its peers is Feeding America. 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

19 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. 19 of the 25 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)
3
Early backer (in before they grew)
19/19
Grantees still filing
15/19
Grew since first funded

Where the money sits, by cause and then by grantee

BOYS & GIRLS CLUB OF NORTHERN WESTCHESTER: $900,000 · Youth DevelopmentBOYS & GIRLS CLUB OF NORTHERN WESTCHESTERNORTHERN WESTCHESTER HOSPITAL CENTER FOUNDATION INC: $100,000 · PhilanthropyNORTHERN W…COPLAND HOUSE INC: $17,500 · Arts & CultureTHE PRESERVATION SOCIETY OF NEWPORT COUNTY: $1,000 · Arts & CultureTHE ISAMU NOGUCHI FOUNDATION AND GARDEN MUSEUM: $1,000 · Arts & CultureFRACTURED ATLAS INC: $1,000 · Arts & CultureNEIGHBORS LINK CORP: $20,000 · Human Services+1 more: $100 · Human ServicesMOUNT KISCO VOLUNTEER AMBULANCE CORP: $1,000 · OtherMT KISCO VOLUNTEER AMBULANCE: $1,000 · OtherMT KISCO VOLUNTEER AMBULANCE CORPS: $1,000 · OtherMT KISCO CHILD CARE CENTER: $1,000 · OtherFULLER CENTER FOR HOUSING OF GREATER NYC: $1,000 · OtherMT KISCO VOLUNTEER FIRE DEPT: $1,000 · OtherSPCA OF WESTCHESTER INC: $1,000 · Other+3 more: $600 · OtherWestchester Land Trust Inc: $5,000 · EnvironmentLEWISBORO LAND TRUST INC: $1,100 · EnvironmentMAKING HEADWAY FOUNDATION INC: $1,000 · HealthMOUNT KISCO VOLUNTEER AMBULANC CORPS INC: $1,000 · HealthMARCH OF DIMES INC: $1,000 · HealthORLANDO ORTHOPAEDIC CENTER FOUNDATION: $1,000 · HealthNATIONAL MULTIPLE SCLEROSIS SOCIETY: $500 · Health
Youth Development$900,000Philanthropy$100,000Arts & Culture$20,500Human Services$20,100Other$7,600Environment$6,100Health$4,500

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 budgetBOYS & GIRLS CLUB OF NORTHERN WESTCHESTER: $900,000 over 4y, 6.5% of budgetNORTHERN WESTCHESTER HOSPITAL CENTER FOUNDATION INC: $100,000 over 2y, 0.4% of budgetNEIGHBORS LINK CORP: $20,000 over 2y, 0.2% of budgetCOPLAND HOUSE INC: $17,500 over 4y, 1.0% of budgetWestchester Land Trust Inc: $5,000 over 1y, 0.4% of budgetLEWISBORO LAND TRUST INC: $1,100 over 2y, 0.3% of budgetTHE PRESERVATION SOCIETY OF NEWPORT COUNTY: $1,000 over 1y, 0.0% of budgetMAKING HEADWAY FOUNDATION INC: $1,000 over 1y, 0.1% of budgetTHE ISAMU NOGUCHI FOUNDATION AND GARDEN MUSEUM: $1,000 over 1y, 0.0% of budgetMOUNT KISCO VOLUNTEER AMBULANC CORPS INC: $1,000 over 1y, 0.3% of budgetSPCA OF WESTCHESTER INC: $1,000 over 1y, 0.0% of budgetFRACTURED ATLAS INC: $1,000 over 1y, 0.0% of budgetMARCH OF DIMES INC: $1,000 over 1y, 0.0% of budgetORLANDO ORTHOPAEDIC CENTER FOUNDATION: $1,000 over 1y, 0.7% of budgetNATIONAL MULTIPLE SCLEROSIS SOCIETY: $500 over 1y, 0.0% of budgetLA JOLLA COUNTRY DAY SCHOOL: $250 over 1y, 0.0% of budgetPACE UNIVERSITY: $250 over 1y, 0.0% of budgetFeeding America: $100 over 1y, 0.0% of budgetCOVENANT HOUSE: $100 over 1y, 0.0% 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.

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 Pfizer Foundation…Vanguard Charitable E…American Endowment Fo…Morgan Stanley Global…The Bank of America C…National Philanthropi…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
The Pfizer Foundation IncNY11.8× affinity5 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Pfizer Foundation Inc · Vanguard Charitable Endowment Program · American Endowment Foundation · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · National Philanthropic Trust · American Online Giving Foundation Inc · Donor Advised Charitable Giving 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.

How much its grantees rely on government

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

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–15%
    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 Silberstein-Boesky Family Foundation Inc?

    Find your warmest path to Silberstein-Boesky Family 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 25 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

    Play a game based on Silberstein-Boesky Family’s filings →

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home