Skip to content
Plinth

· Private foundation

Oster Sinisi Family Foundation Inc

Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$87k
Granted FY2025still arriving
4
Grants FY2025still arriving
2
States reached
$30k
Largest
01What you fund
0196% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Arts & Culture$2.0MInternational$308kHuman Services$283kReligion$85kYouth Development$74kCivil Rights$67kPhilanthropy$35kPublic Safety & Disaster$33kOther$0
02FY2025 · 4 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k1 grant · $7k
  • $10k–50k3 grants · $80k
$29,500
Median grant
2
States reached
$3.4M
Total assets
Largest grants
RecipientAmount
FRIENDS OF HAGAL SHELI INC$30,000
MUSEUM OF JEWISH HERITAGE$29,500
CROSSTALK OFFICIAL FOUNDATION$20,000
TEMPLE SINAI$7,200
02The need
03

Do your dollars go where the need is?

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

show:

Your human-services grants (FY19–19, $1k) land where the poverty rate runs at 17%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 10%THE BLUE CARD: $1k → 17%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

NY
MA
OH
NJ
CT
CA
DE
KS

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

04

Where the work is directed

The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.

About 27% of Oster Sinisi Family Foundation Inc’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.

Oster Sinisi Family Foundation Inclessmore of its giving
Placed by recipient address · 2.7% directed abroad (not shown)

Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

81%of every dollar goes to organizations you’ve funded before.
$2.4M · 15 repeat orgs$587k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +53% since the first grant, against +23% for the ones you funded once.

15 repeat relationships — 1 still active in FY2025, 14 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

15
44

Total granted

$2.4M
$530k

Median revenue growth · since first grant

+53%
+23%

Still filing today

33%
36%

New vs renewed · share of each year

In FY2025, 34% of grant dollars renewed an existing relationship; $57k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Arts & CultureInternationalHealthCrime & LegalHuman ServicesPhilanthropyOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • MO
    MUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST
    9× · 2017–2025 · $1.4M · revenue +9%
  • FO
    FRIENDS OF UNITED HATZALAH INC
    3× · 2018–2020 · $226k · revenue +274%
  • FRIENDS OF THE ISRAEL DEFENSE FORCES
    7× · 2017–2023 · $185k · revenue +53%

Funded once

  • AF
    AMERICAN FRIENDS OF ISRAEL
    one grant, 2024 · $75k
  • IG
    Individual grant recipient
    one grant, 2024 · $72k
  • DG
    DOG GREEN PRODUCTIONS FIDDLER
    one grant, 2018 · $50k

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

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
Eastern European Jewish Heritage Foundation
Philanthropy
2
The Steinhardt Foundation for Jewish Life Inc
Religion
3
University of Judaism Foundation
4
The Foundation for the Preservation of the History of the Jewish People in
Arts & Culture
5
Novachai
Education
6
Keren Yaakov Ben Menachen Tzvi Foundation
Philanthropy
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
Idf Memorial Foundation
Philanthropy
9
Yad Laniyim
Philanthropy
10
Zichron Avrohom Yosef
Philanthropy
11
The Nochim & Rivka Zeldes Foundation
12
Yakar Foundation Inc

For reference, the grantee most central to the portfolio’s shape is American Society for Yad Vashem Inc and the most unlike its peers is Wordtheatre. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 37 years old; the field is 17. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number20%9%<5yr14%4%5–10yr21%9%10–20yr20%26%20–35yr13%39%35–55yr13%13%55yr+
THE FIELDby orgYOUR MONEYby value20%3%<5yr14%1%5–10yr21%2%10–20yr20%12%20–35yr13%81%35–55yr13%1%55yr+

The field is 20% startups (under 5 years old) — 9% of your grantees by number, and just 3% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 11% of the field you don’t fund.

orgs you fund
0.0%0/25
the rest of the field
11%
3,793/35,761

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

05the grantee network

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

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 23 of the 62 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

1
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
22/23
Grantees still filing
14/23
Grew since you first funded

Where your money sits — by cause, then by grantee

MUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST — $1,449,300 · Arts & CultureMUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUSTFRIENDS OF UNITED HATZALAH INC — $226,000 · Arts & CultureFRIENDS OF UNITED HATZALAH INC+7 more — $83,820 · Arts & CultureJEWISH HOME FOUNDATION — $161,500 · OtherJEWISH HOME FOUNDATIONA CARING HAND — $116,500 · OtherA CARING HANDAMERICAN FRIENDS OF ISRAEL — $75,000 · OtherAMERICAN FRIENDS OF ISRAELIndividual grant recipient — $72,000 · OtherIndividual grant recipientA HOLE-IN-THE-WALL CAMP FUND — $70,000 · OtherA HOLE-IN-THE-WALL CAMP FUNDGEDENK MOVEMENT INC — $66,800 · OtherGEDENK MOVEMENT INCWORLD THEATRE — $51,000 · OtherDOG GREEN PRODUCTIONS FIDDLER — $50,000 · OtherVINEYARD THEATRE — $38,200 · Other+36 more — $261,030 · Other+36 moreFRIENDS OF THE ISRAEL DEFENSE FORCES — $184,500 · InternationalFRIENDS OF ISRAEL DISABLED VETERANS INC — $25,000 · InternationalAMERICAN COMMITTEE FOR THE WEIZMANN INSTITUTE OF SCIENCE INC — $25,000 · InternationalFRIENDS OF HAGAL SHELI INC — $30,000 · PhilanthropyHONOR 37 — $22,500 · Crime & LegalALS THERAPY DEVELOPMENT FOUNDATION INC — $10,000 · HealthBEYOND TYPE 1 — $6,500 · HealthUPSTART BAY AREA — $10,000 · Community Improvement
Arts & Culture$1,759,120Other$962,030International$234,500Philanthropy$30,000Crime & Legal$22,500Health$16,500Community Improvement$10,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetMUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST — $1,449,300 over 9y, 3.3% of budgetFRIENDS OF UNITED HATZALAH INC — $226,000 over 3y, 0.3% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES — $184,500 over 7y, 0.1% of budgetGEDENK MOVEMENT INC — $66,800 over 2y, 79% of budgetFILM FORUM INC — $50,000 over 1y, 0.9% of budgetFRIENDS OF HAGAL SHELI INC — $30,000 over 1y, 0.8% of budgetINDEPENDENT FEATURE PROJECT INC — $25,000 over 1y, 0.4% of budgetFRIENDS OF ISRAEL DISABLED VETERANS INC — $25,000 over 1y, 0.6% of budgetAMERICAN COMMITTEE FOR THE WEIZMANN INSTITUTE OF SCIENCE INC — $25,000 over 1y, 0.0% of budgetHONOR 37 — $22,500 over 3y, 2.0% of budgetWORDTHEATRE — $20,000 over 1y, 3.8% of budgetALS THERAPY DEVELOPMENT FOUNDATION INC — $10,000 over 1y, 0.1% of budgetTORAH ACADEMY OF BERGEN COUNTY — $10,000 over 1y, 0.1% of budgetUPSTART BAY AREA — $10,000 over 1y, 0.2% of budgetBEYOND TYPE 1 — $6,500 over 1y, 0.3% of budgetFOLKSBIENE YIDDISH THEATRE INC — $5,000 over 1y, 0.1% of budgetCOLUMBIANS INC — $3,500 over 3y, 1.6% of budgetPOLICE ATHLETIC LEAGUE INC — $2,500 over 1y, 0.0% of budgetVINEYARD THEATRE AND WORKSHOP CENTER INC — $1,500 over 1y, 0.0% of budgetAMERICAN FRIENDS OF BEIT HATFUTSOT D/B/A AMERICAN FRIENDS OF ANU-MUSEUM — $1,000 over 1y, 0.1% of budgetTHE BLUE CARD INC — $1,000 over 1y, 0.0% of budgetAMERICAN SOCIETY FOR YAD VASHEM INC — $720 over 1y, 0.0% of budgetJewish Partisan Education Foundation — $600 over 1y, 0.2% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

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

  • Who funds MUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST
  • Who funds FRIENDS OF UNITED HATZALAH INC
  • Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES
  • Who funds GEDENK MOVEMENT INC
  • Who funds FILM FORUM INC
  • Who funds FRIENDS OF HAGAL SHELI INC
  • Who funds INDEPENDENT FEATURE PROJECT INC
  • Who funds FRIENDS OF ISRAEL DISABLED VETERANS INC
  • Who funds AMERICAN COMMITTEE FOR THE WEIZMANN INSTITUTE OF SCIENCE INC
  • Who funds HONOR 37
  • Who funds WORDTHEATRE
  • Who funds ALS THERAPY DEVELOPMENT FOUNDATION INC
  • Who funds TORAH ACADEMY OF BERGEN COUNTY
  • Who funds UPSTART BAY AREA
  • Who funds BEYOND TYPE 1
  • Who funds FOLKSBIENE YIDDISH THEATRE INC

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

Jewish Communal FundNY17.8× affinity8 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · American Online Giving Foundation Inc · Amazonsmile Foundation

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization Oster Sinisi Family Foundation Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.

2024
202122232425
no gov · 20%0%1%3%5%your share of their income ↑0%13%25%38%50%share of the org’s income from governmentmedian 8%
  • Als Therapy Development Foundation Inc8% of income from government
  • Torah Academy of Bergen County0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–50%
typical government reliance, FY2025

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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Oster Sinisi Family Foundation Inc?

Find your warmest path to Oster Sinisi 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 directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 62 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph