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Naftali and Natalie Zanziper Foundation at a glance

· Private foundation

Naftali and Natalie Zanziper Foundation

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.

$2.0M
Granted FY2023
48
Grants FY2023
5
States reached
$121k
Largest
01What it fundsRead
02Its granteesRead
03Its fieldRead
04Through PlinthRead
01What it funds
0195% classified

What it funded, over time

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

Religion$2.3MHuman Services$436kPhilanthropy$291kFood & Nutrition$191kHealth$161kEducation$153kPublic Safety & Disaster$71kYouth Development$61kOther$0
02FY2023 · 48 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 48 grants below total $1,143,795, the rows itemized in this filing. The $2,019,314 headline is the total grant expense on the return; the other $875,519 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2023

  • Under $10k25 grants · $80k
  • $10k–50k13 grants · $330k
  • $50k–250k10 grants · $734k
$9,000
Median grant
5
States reached
$287k
Total assets
Largest grants
RecipientAmount
My Extended Family$121,000
Tzur Foundation$91,800
Torah Umesorah/National Society for Hebrew Day School$90,000
Jerusalem Open House$69,806
Bais Hamedrash Netzach Yisroel$65,000
Beth Medrash Ohr Chaim$63,000
Kupath Ezra of Rockland$60,000
Tomche Shabbos of Rockland County$60,000
Relief Resources Inc$60,000
Lehava- RCTT Reviving Communities Through Torah$53,734
Flatbush Community Fund$45,000
Mercava Inc$37,500
Tov V'chesed Foundation, Inc$36,000
Cong Machon Tiferes Bachurim$30,500
IYYUN, inc$30,500
02Its grantees
repeat funding

Who it funds again

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

83%of every dollar goes to organizations it has funded before.
$3.1M · 45 repeat orgs$648k to everyone else

Grantees it renews have grown median revenue +24% since the first grant, against +7% for those funded once.

45 repeat relationships: 32 still active in FY2023, 13 since wound down; 16 grantees were first funded in FY2023 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

45
48

Total granted

$3.1M
$411k

Median revenue growth · since first grant

+24%
+7%

Still filing today

44%
17%

New vs renewed · share of each year

In FY2023, 79% of grant dollars renewed an existing relationship; $237k went to new ones.

50%100%’21’22’23
RenewedFirst-time

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

’21’22’23
Human ServicesReligionPhilanthropyEducationFood & NutritionHealthOther
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

  • TF
    TZUR FOUNDATION INC
    3× · 2021–2023 · $356k · revenue +63%
  • ME
    MY EXTENDED FAMILY INC
    3× · 2021–2023 · $338k · revenue +60%
  • TS
    TOMCHE SHABBOS OF ROCKLAND COUNTY INC
    3× · 2021–2023 · $190k · revenue +39%

Funded once

  • BH
    Bais Hamedrash Neitzach Yisroel
    one grant, 2021 · $48k
  • NI
    NYUN, Inc
    one grant, 2022 · $36k
  • CK
    CONG KEREN TOSFES YOM TOV
    one grant, 2021 · $30k
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.

03Its 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
Tomchei Torah Inc

Religious Teaching

—
2
Zohar Hatorah Inc

Religious School

Religion
3
Ohr Yisrael Yeshiva Inc

Ohr Yisrael is a religious institution that provides religious services and instruction to Rabbis and community members.

Religion
4
Yeshiva Ohr Yisroel
Philanthropy
5
Ezreinu Inc
Health
6
Chasdei Dovid Elimelech Inc
Philanthropy
7
Zichron Avrohom Yosef
Philanthropy
8
Yeshiva Knesseth Yisroel

To provide financial support to the yeshiva knesseth yisroel institution, its rabbis, and students, and lend support to other religious institutions in israel and around the world, with the goal of furthering jewish values among the jewish…

Philanthropy
9
Rashbi Tehillim Incorporated
Religion
10
Ohr Olam Corp

publish religious books

Religion
11
Friends of Tzeirei Chabad in Israel Inc

To pursue a greater outreach of knowledge of the Jewish Torah and to further educate the less knowledgeable

Religion
12
American Friends of Shviti Hashem Inc

To support and promote the study of torah (bible) among members of jewish faith worldwide.

Religion
How this is measured
The grantee most central to the portfolio’s shape is Ohel Childrens Home & Family Services Inc; the most unlike its peers is Camp Extreme D/B/a Project Extreme. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
03the grantee network

33 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. 33 of the 109 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)
6
Early backer (in before they grew)
31/33
Grantees still filing
20/33
Grew since first funded

Where the money sits, by cause and then by grantee

JERUSALEM OPEN HOUSE: $195,975 · OtherJERUSALEM OPEN HOUSEBeth Medrash Ohr Chaim Inc: $193,000 · OtherBeth Medrash Ohr Chaim IncKupath Ezra of Rockland: $185,000 · OtherKupath Ezra of RocklandBais Hamedrash Netzach Yisroel: $145,000 · OtherBais Hamedrash Netzach YisroelTov V'chesed Foundation, Inc: $112,150 · OtherTov V'chesed Foundation, IncMesivta Torah Vodaath Rabbinical Seminary: $101,020 · OtherTorah Umesorah/National Society for Hebrew Day School: $90,000 · OtherCong. and mesivta YSD MOE: $75,000 · OtherCHOFETZ CHAIM INC: $72,000 · Other+73 more: $841,414 · Other+73 moreMY EXTENDED FAMILY INC: $338,428 · Human ServicesMY EXTENDED FAMI…RELIEF RESOURCES INC: $60,000 · Human ServicesRELIEF RESOURCES…Bonei Olam Inc: $52,500 · Human ServicesBonei Olam IncA Torah Infertilty Medium Exchange: $39,972 · Human ServicesA Torah Infertil…CHAI 4EVER INC: $30,000 · Human ServicesCHAI 4EVER INC+5 more: $32,346 · Human Services+5 moreTZUR FOUNDATION INC: $355,600 · ReligionTZUR FOUNDAT…PROJECT INSPIRE INC: $35,250 · ReligionPROJECT INSP…+5 more: $11,000 · ReligionRCTT REVIVING COMMUNITIES THROUGH TORAH: $186,109 · PhilanthropyRCTT REVIVI…THE FLATBUSH COMMUNITY FUND INC co BERNATH & ROSENBERG PC: $177,500 · PhilanthropyTHE FLATBUS…ADIN'S CLOSET INC: $19,725 · PhilanthropyTOMCHE SHABBOS OF ROCKLAND COUNTY INC: $190,000 · Food & Nutrition+1 more: $1,000 · Food & NutritionMERCAVA INC: $125,000 · Education+2 more: $3,250 · EducationHATZOLAH EMERGENCY AIR RESPONSE TEAM INC: $71,236 · HealthKAPAYIM INC: $3,550 · Health
Other$2,010,559Human Services$553,246Religion$401,850Philanthropy$383,334Food & Nutrition$191,000Education$128,250Health$74,786

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 budgetTZUR FOUNDATION INC: $355,600 over 3y, 0.7% of budgetMY EXTENDED FAMILY INC: $338,428 over 3y, 5.4% of budgetTOMCHE SHABBOS OF ROCKLAND COUNTY INC: $190,000 over 3y, 0.7% of budgetRCTT REVIVING COMMUNITIES THROUGH TORAH: $186,109 over 3y, 4.4% of budgetTHE FLATBUSH COMMUNITY FUND INC co BERNATH & ROSENBERG PC: $177,500 over 3y, 3.9% of budgetMERCAVA INC: $125,000 over 2y, 21% of budgetHATZOLAH EMERGENCY AIR RESPONSE TEAM INC: $71,236 over 2y, 0.6% of budgetTHE ALEPH INSTITUTE INC: $60,000 over 2y, 0.8% of budgetRELIEF RESOURCES INC: $60,000 over 1y, 1.3% of budgetBonei Olam Inc: $52,500 over 2y, 0.1% of budgetA Torah Infertilty Medium Exchange: $39,972 over 2y, 0.4% of budgetPROJECT INSPIRE INC: $35,250 over 2y, 0.7% of budgetCAMP EXTREME D/B/A PROJECT EXTREME: $30,000 over 3y, 0.7% of budgetKIDS-N-CAMP FUND INC: $30,000 over 1y, 2.2% of budgetCHAI 4EVER INC: $30,000 over 2y, 0.4% of budgetADIN'S CLOSET INC: $19,725 over 2y, 11% of budgetHILLEL OF ROCKLAND COUNTY INC: $14,000 over 2y, 1.2% of budgetAMERICAN FRIENDS OF YESHIVA DMIR INC: $10,000 over 1y, 0.0% of budgetOhel Childrens Home & Family Services Inc: $9,750 over 3y, 0.0% of budgetRosh Chodesh Project: $6,000 over 3y, 0.7% of budgetCenter For Justice And Human Dignity: $5,000 over 1y, 0.6% of budgetISRAEL MEDICAL FUND CORP: $4,846 over 1y, 0.1% of budgetKAPAYIM INC: $3,550 over 2y, 0.1% of budgetYeshiva Derech Torah of Monsey Inc: $3,000 over 2y, 0.8% of budgetZICHRON AVROHOM VESTHER FUND: $2,750 over 2y, 0.6% of budgetAMERICAN FRIENDS OF HEBRON YESHIVA IN JERUSALEM INC: $2,500 over 1y, 0.0% of budgetCHAYIM V CHESED: $2,500 over 2y, 0.0% of budgetYehudi Inc: $1,500 over 2y, 0.0% of budgetTOMCHEI SHABBOS OF FLORIDA: $1,000 over 1y, 0.1% of budgetTHE LIGHTHOUSE PROJECT INC: $1,000 over 1y, 0.5% of budgetCINCINNATI HEBREW DAY SCHOOL INC: $250 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 TZUR FOUNDATION INC ↗
  • Who funds MY EXTENDED FAMILY INC ↗
  • Who funds TOMCHE SHABBOS OF ROCKLAND COUNTY INC ↗
  • Who funds RCTT REVIVING COMMUNITIES THROUGH TORAH ↗
  • Who funds THE FLATBUSH COMMUNITY FUND INC co BERNATH & ROSENBERG PC ↗
  • Who funds MERCAVA INC ↗
  • Who funds HATZOLAH EMERGENCY AIR RESPONSE TEAM INC ↗
  • Who funds THE ALEPH INSTITUTE INC ↗
  • Who funds RELIEF RESOURCES INC ↗
  • Who funds Bonei Olam Inc ↗
  • Who funds A Torah Infertilty Medium Exchange ↗
  • Who funds PROJECT INSPIRE INC ↗
  • Who funds CAMP EXTREME D/B/A PROJECT EXTREME ↗
  • Who funds KIDS-N-CAMP FUND INC ↗
  • Who funds CHAI 4EVER INC ↗
  • Who funds ADIN'S CLOSET 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.

Simcha and Rachel Hym…The Ojc FundJewish Communal FundJack Adjmi Family Fou…National Society for …The Weiskopf Family F…Murray & Sydell Rosen…Bcg Charitable Founda…The Nathan and Marily…Md Friedman Family Fo…The Ohr Hakotel Found…Eisenberg Family Foun…
Simcha and Rachel Hyman FoundationNY102.3× affinity46 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Simcha and Rachel Hyman Foundation · The Ojc Fund · Jewish Communal Fund · Jack Adjmi Family Foundation Inc · National Society for Hebrew Day Schools · The Weiskopf Family Foundation · Murray & Sydell Rosenberg Foundationinc · Bcg Charitable Foundation · The Nathan and Marilyn Silberman Fdn · Md Friedman Family Foundation · The Ohr Hakotel Foundation · Eisenberg Family 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.
04Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Naftali and Natalie Zanziper Foundation?

Find your warmest path to Naftali and Natalie Zanziper 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 109 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.

Possibly out of date. A more recent filing (FY2024) is on record and reports $2.3M of grant expense with no grantee named in the published copy. A private foundation itemizes every grant it makes, so a return carrying none has filed its list as an attachment that the public copy does not include. The figures above are therefore from FY2023, the most recent year this funder’s grantee list reached the public record.

Source object · view filing

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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