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· Private foundation

Sapoff Foundation

Its FY2023 filing reports that it accepted unsolicited grant applications.

$9k
Granted FY2023
3
Grants FY2023
2
States reached
$5k
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2023.

Philanthropy$264kArts & Culture$161kReligion$26kInternational$17kHealth$11kCivil Rights$6kAnimals$5kEducation$3kOther$0
02FY2023 · 3 grants

Where the money goes

Grants by size, and the largest recipients.

$3,000
Median grant
2
States reached
$274k
Total assets
Largest grants
RecipientAmount
NJ SPCA$5,000
ANTI DEFAMATION LEAGUE$3,000
INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS$1,000
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 (FY21–21, $360) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%WOUNDED WARRIOR PROJECT: $360 → 13%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

IL
MI
NY
NJ
VA
MD
DC
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.

86%of every dollar goes to organizations it has funded before.
$213k · 26 repeat orgs$34k to everyone else

Grantees it renews have grown median revenue +26% since the first grant, against +22% for those funded once.

26 repeat relationships: 0 still active in FY2023, 26 since wound down; 3 grantees were first funded in FY2023 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

26
28

Total granted

$213k
$25k

Median revenue growth · since first grant

+26%
+22%

Still filing today

58%
29%

New vs renewed · share of each year

In FY2023, 0% of grant dollars renewed an existing relationship; $9k went to new ones.

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

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

’17’18’19’20’21’22’23
HealthArts & CultureEducationPublic BenefitRecreation & SportsInternationalOther
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

  • RF
    RAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC
    6× · 2017–2022 · $76k · revenue +72%
  • PB
    PALM BEACH OPERA INC
    4× · 2018–2021 · $29k · revenue +69%
  • MCCARTER THEATRE COMPANY
    4× · 2017–2021 · $22k · revenue +5%

Funded once

  • NS
    NJ SCHOOL OF DRAMATIC ARTS
    one grant, 2019 · $10k
  • Metropolitan Opera Association Inc
    one grant, 2017 · $3k · revenue -2%
  • TM
    THE METROPOLITAN OPERA
    one grant, 2018 · $3k
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
Institute for Advanced Study - Louis Bamberger & Mrs Felix Fuld Foundation

The institute for advanced study (the institute) is one of the world's leading centers for theoretical research and intellectual inquiry. see schedule o.

Science & Tech
2
Bar Ilan University in Israel Inc

Biu produces students who excel in the sciences, humanities, law, engineering, business & the arts.

—
3
University of Miami

See Form 990, Part I, Line 1, Description of Organization Mission.

Education
4
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
5
American Academy of Neurology

The Academy's mission is to enhance member career fulfillment and promote brain health for all.

Community Improvement
6
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
7
The Jewish Museum

The mission of the jewish museum is to collect, preserve, exhibit and interpret art and jewish culture. see schedule o for more information.

Arts & Culture
8
Trustees of the University of Pennsylvania

The trustees of the university of pennsylvania (the "university") sees itself as having a public service mission. in such regard, the university aims to provide a rich and diverse educational environment for its students; to pioneer…

Education
9
American Jewish Committee

AJC's mission is to enhance the wellbeing of the Jewish people and Israel, and to advance human rights and democratic values in the United States and around the world. In pursuit of this mission, AJC advances democratic principles, fights…

Civil Rights
10
Weitzman National Museum of American Jewish History

The weitzman national museum of american jewish history, on independence mall in philadelphia, presents educational programs and experiences that preserve, explore, and celebrate the history of jews in america. its purpose is to connect…

Arts & Culture
11
Fairleigh Dickinson University

Fairleigh dickinson university is a center of academic excellence dedicated to the preparation of world citizens through global education. the university strives to provide students with the multi-disciplinary, intercultural, and ethical…

Education
12
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
How this is measured
The grantee most central to the portfolio’s shape is Jewish Federation of South Palm Beach County Inc; the most unlike its peers is Njspca 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

27 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. 27 of the 58 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)
27/27
Grantees still filing
19/27
Grew since first funded

Where the money sits, by cause and then by grantee

JEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INC: $251,780 · PhilanthropyJEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INCRAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC: $76,100 · Arts & CultureRAYMOND F KRAVIS CENTER FOR THE P…PALM BEACH OPERA INC: $29,000 · Arts & CulturePALM BEACH OPERA INCMCCARTER THEATRE COMPANY: $21,500 · Arts & CultureMCCARTER THEATRE COMPANYMIAMI CITY BALLET INC: $16,000 · Arts & CultureMIAMI CITY BALLET INC+3 more: $3,800 · Arts & CultureJEWISH CENTER: $25,275 · OtherJEWISH CENTERJAFCO: $11,610 · OtherJAFCOAFMDA - AMERICAN FRIENDS OF MAGEN DAVID ADOM: $10,800 · OtherAFMDA - AMERICAN …NJ SCHOOL OF DRAMATIC ARTS: $10,000 · OtherNJ SCHOOL OF DRAM…THE METROPOLITAN OPERA: $3,000 · OtherAJC - AMERICAN JEWISH COMMITTEE IN NY: $3,000 · Other+31 more: $15,307 · Other+31 moreTHE BICOL CLINIC FOUNDATION INC: $5,100 · HealthBoca Raton Regional Hospital Inc: $4,000 · HealthARTHRITIS FOUNDATION INC: $900 · HealthGREENWOOD HOUSE HOME FOR THE JEWISH AGED: $750 · Health+4 more: $475 · HealthNJSPCA INC: $5,000 · AnimalsANTI-DEFAMATION LEAGUE: $3,000 · Civil RightsInstitute of Electrical and Electronics Engineers Inc: $1,000 · EducationNew York University: $750 · EducationINTERNATIONAL MARCH OF THE LIVING I: $180 · Education
Philanthropy$251,780Arts & Culture$146,400Other$78,992Health$11,225Animals$5,000Civil Rights$3,000Education$1,930

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 budgetJEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INC: $251,780 over 6y, 0.4% of budgetRAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC: $76,100 over 6y, 0.1% of budgetPALM BEACH OPERA INC: $29,000 over 4y, 0.2% of budgetMCCARTER THEATRE COMPANY: $21,500 over 4y, 0.1% of budgetMIAMI CITY BALLET INC: $16,000 over 4y, 0.0% of budgetTHE BICOL CLINIC FOUNDATION INC: $5,100 over 3y, 0.6% of budgetNJSPCA INC: $5,000 over 1y, 7.3% of budgetBoca Raton Regional Hospital Inc: $4,000 over 4y, 0.0% of budgetMetropolitan Opera Association Inc: $3,000 over 1y, 0.0% of budgetANTI-DEFAMATION LEAGUE: $3,000 over 1y, 0.0% of budgetUniversity of Michigan: $1,375 over 2y, 0.3% of budgetJewish Women International: $1,006 over 2y, 0.0% of budgetInstitute of Electrical and Electronics Engineers Inc: $1,000 over 1y, 0.0% of budgetARTHRITIS FOUNDATION INC: $900 over 3y, 0.0% of budgetGREENWOOD HOUSE HOME FOR THE JEWISH AGED: $750 over 3y, 0.0% of budgetNew York University: $750 over 2y, 0.0% of budgetMETROPOLITAN MUSEUM OF ART: $600 over 1y, 0.0% of budgetBest Buddies International Inc: $500 over 1y, 0.0% of budgetWOUNDED WARRIOR PROJECT INC: $360 over 1y, 0.0% of budgetTHE HIGHLAND BEACH POLICE AND FIRE FOUNDATION INC: $300 over 3y, 0.7% of budgetNATIONAL JUNIOR TENNIS & LEARNING OF TRENTON INC: $250 over 1y, 0.0% of budgetTHE JEWISH FOUNDATION FOR THE RIGHTEOUS INC: $200 over 2y, 0.0% of budgetINTERNATIONAL MARCH OF THE LIVING I: $180 over 1y, 0.0% of budgetAMERICAN CANCER SOCIETY INC: $175 over 3y, 0.0% of budgetAmerican Heart Association Inc: $150 over 3y, 0.0% of budgetALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC: $100 over 1y, 0.0% of budgetPRINCETON FIRST AID AND RESCUE SQUAD: $50 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.

  • Who funds JEWISH FEDERATION OF SOUTH PALM BEACH COUNTY INC ↗
  • Who funds RAYMOND F KRAVIS CENTER FOR THE PERFORMING ARTS INC ↗
  • Who funds PALM BEACH OPERA INC ↗
  • Who funds MCCARTER THEATRE COMPANY ↗
  • Who funds MIAMI CITY BALLET INC ↗
  • Who funds THE BICOL CLINIC FOUNDATION INC ↗
  • Who funds NJSPCA INC ↗
  • Who funds Boca Raton Regional Hospital Inc ↗
  • Who funds Metropolitan Opera Association Inc ↗
  • Who funds ANTI-DEFAMATION LEAGUE ↗
  • Who funds University of Michigan ↗
  • Who funds Jewish Women International ↗
  • Who funds Institute of Electrical and Electronics Engineers Inc ↗
  • Who funds ARTHRITIS FOUNDATION INC ↗
  • Who funds GREENWOOD HOUSE HOME FOR THE JEWISH AGED ↗
  • Who funds New York University ↗
  • Who funds METROPOLITAN MUSEUM OF ART ↗
  • Who funds Best Buddies International Inc ↗
  • Who funds WOUNDED WARRIOR PROJECT 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 Robert Wood Johnson FoundationNJ14.7× affinity5 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Robert Wood Johnson Foundation · The Anne and Gerald Freedman Charitable Foundation Inc · Bristol-Myers Squibb Foundation Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · 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.

How much its grantees rely on government

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

2024
’20’21’22’23’24’25
no gov · 80%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 1%
  • Best Buddies International Inc: 4% of income from government
  • Institute of Electrical and Electronics Engineers Inc: 1% of income from government
  • Wounded Warrior Project Inc: 0% of income from government
no gov moneyreceives it· size = income
8get 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
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 Sapoff Foundation?

Find your warmest path to Sapoff 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.

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 58 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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