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The Sidney & Mildred Edelstein Foundation at a glance

· Private foundation

The Sidney & Mildred Edelstein Foundation

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.

$884k
Granted FY2025still arriving
9
Grants FY2025still arriving
3
States reached
$739k
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, FY2017 to 2025.

Education$5.6MArts & Culture$91kHuman Services$85kReligion$30kFood & Nutrition$14kInternational$12kPhilanthropy$10kHealth$8kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k5 grants · $20k
  • $10k–50k2 grants · $20k
  • $50k–250k1 grant · $105k
  • $250k+1 grant · $739k
$5,000
Median grant
3
States reached
$1.1M
Total assets
Largest grants
RecipientAmount
AMERICAN FRIENDS OF HEBREW UNIVERSITY$739,000
AMERICAN COMMITTEE FOR SHENKAR COLLEGE$105,000
FRIENDS OF THE PORT WASHINGTON PUBLIC LIBRARY INC$10,000
THE HOLOCAUST MUSEUM & CENTER FOR TOLERANCE & EDUCATION$10,000
MAKE SCHOOLS SAFE INC$5,000
AMERICAN FRIENDS OF MAGEN DAVID ADOM$5,000
LIFETOWN INC$5,000
DANIELS MUSIC FOUNDATION$2,500
THE SOUP KITCHEN INC$2,500
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 (FY17–25, $88k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 38% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%ISRAEL GUIDE DOG CENTER FOR THE BLIND: $25k → 6%BLOCK INSTITUTE INC: $2k → 20%WE'VE GOT FRIENDS INC: $1k → 16%ISRAEL GUIDE DOG CENTER FOR THE BLIND: $25k → 6%LIFETOWN INC: $5k → 16%ISRAEL GUIDE DOG CENTER FOR THE BLIND: $5k → 6%LIFETOWN INC: $5k → 16%LIFETOWN INC: $5k → 16%LIFETOWN INC: $5k → 16%LIFETOWN INC: $5k → 16%LIFETOWN INC: $5k → 16%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.

99%of every dollar goes to organizations it has funded before.
$5.8M · 15 repeat orgs$47k to everyone else

Grantees it renews have grown median revenue +46% since the first grant, against 0% for those funded once.

15 repeat relationships: 7 still active in FY2025, 8 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

15
10

Total granted

$5.8M
$39k

Median revenue growth · since first grant

+46%
0%

Still filing today

73%
70%

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $8k 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
Human ServicesEducationInternationalArts & CultureFood & NutritionPhilanthropyOther
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

  • AF
    AMERICAN FRIENDS OF HEBREW UNIVERSITY INC
    9× · 2017–2025 · $4.6M · revenue +40%
  • HM
    HOLOCAUST MUSEUM & CENTER FOR TOLERANCE AND EDUCATION
    9× · 2017–2025 · $70k · revenue +66%
  • IG
    ISRAEL GUIDE DOG CENTER FOR THE BLIND
    3× · 2017–2020 · $55k · revenue +36%

Funded once

  • NN
    NAMES NOT NUMBERS INC
    one grant, 2022 · $12k · revenue -59%
  • H
    HADASSAH
    one grant, 2022 · $10k
  • SF
    SERVICES FOR CHILDREN WITH HIDDEN INTELLIGENCEgraduated
    one grant, 2022 · $5k · revenue +64%
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
Friends of the Daniel Centers for Progressive Judaism

Strengthen progressive judaism in israel through support of the daniel centers in tel aviv/jaffa.

Unclassified
2
Idf Memorial Foundation
Philanthropy
3
The Steinhardt Foundation for Jewish Life Inc
Religion
4
Bar Ilan University in Israel Inc

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

—
5
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
6
Museum of Jewish Heritage a Living Memorial to the Holocaust

The museum of jewish heritage - a living memorial to the holocaust is new york's contribution to the global responsibility to never forget. see schedule o for additional information.

Arts & Culture
7
Weizmann Institute of Science

The weizmann institute of science, located in rehovot, israel, is one of the worlds top-ranking, multidisciplinary research institutions. at any one time, several thousand scientists, staff and students are involved in hundreds of research…

Science & Tech
8
University of Judaism Foundation
—
9
Friends of the Jewish Museum Berlin

To promote and financially support the activities of the jewish museum berlin and similar institutions whose mission is to pursue the study of the history and culture of german-speaking jewry.

Education
10
Joseph and Malka Melohn Foundation
—
11
American Friends of Bar-Ilan University

We fundraise in the u.s. to support, and raise awareness of, bar-ilan university in israel.

Education
12
The Lieber Institute Inc

The mission of the institute is to translate basic genetic and molecular mechanisms of schizophrenia and related developmental brain disorders into clinical advances that change the lives of affected individuals. it is catalyzing a new…

Health
How this is measured
The grantee most central to the portfolio’s shape is Jewish Federation of Greater Metrowest Nj; the most unlike its peers is Port Washington Education Foundation. 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

21 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. 21 of the 28 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)
4
Early backer (in before they grew)
21/21
Grantees still filing
12/21
Grew since first funded

Where the money sits, by cause and then by grantee

AMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $4,635,500 · InternationalAMERICAN FRIENDS OF HEBREW UNIVERSITY INC+2 more: $11,500 · InternationalAMERICAN COMMITTEE FOR SHENKAR COLLEGE: $790,000 · OtherAMERICAN COMMITT…+10 more: $61,300 · Other+10 morePORT WASHINGTON EDUCATION FOUNDATION: $90,000 · PhilanthropyJEWISH FEDERATION OF GREATER METROWEST NJ: $10,000 · PhilanthropyHOLOCAUST MUSEUM & CENTER FOR TOLERANCE AND EDUCATION: $70,000 · Arts & CultureDANIEL'S MUSIC FOUNDATION: $21,000 · Arts & CultureISRAEL GUIDE DOG CENTER FOR THE BLIND: $55,000 · Human ServicesLife Town Inc: $30,000 · Human Services+2 more: $3,000 · Human ServicesTHE FRIENDS OF THE PORT WASHINGTON LIBRARY: $25,000 · EducationNAMES NOT NUMBERS INC: $12,000 · EducationSERVICES FOR CHILDREN WITH HIDDEN INTELLIGENCE: $5,000 · Education+1 more: $1,000 · EducationCommunity Food Bank Of New Jersey Inc: $11,500 · Food & NutritionThe Soup Kitchen Inc: $2,500 · Food & Nutrition
International$4,647,000Other$851,300Philanthropy$100,000Arts & Culture$91,000Human Services$88,000Education$43,000Food & Nutrition$14,000

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 budgetAMERICAN FRIENDS OF HEBREW UNIVERSITY INC: $4,635,500 over 9y, 0.7% of budgetPORT WASHINGTON EDUCATION FOUNDATION: $90,000 over 5y, 5.8% of budgetHOLOCAUST MUSEUM & CENTER FOR TOLERANCE AND EDUCATION: $70,000 over 9y, 1.7% of budgetISRAEL GUIDE DOG CENTER FOR THE BLIND: $55,000 over 3y, 1.0% of budgetLife Town Inc: $30,000 over 6y, 0.7% of budgetTHE FRIENDS OF THE PORT WASHINGTON LIBRARY: $25,000 over 3y, 6.2% of budgetDANIEL'S MUSIC FOUNDATION: $21,000 over 9y, 0.3% of budgetNAMES NOT NUMBERS INC: $12,000 over 1y, 0.8% of budgetCommunity Food Bank Of New Jersey Inc: $11,500 over 5y, 0.0% of budgetJEWISH FEDERATION OF GREATER METROWEST NJ: $10,000 over 1y, 0.0% of budgetMAKE SCHOOLS SAFE INC DBA MAKE OUR SCHOOLS SAFE: $6,500 over 2y, 0.3% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $6,500 over 3y, 0.0% of budgetTHE MARFAN FOUNDATION INC: $5,000 over 4y, 0.0% of budgetSERVICES FOR CHILDREN WITH HIDDEN INTELLIGENCE: $5,000 over 1y, 0.0% of budgetThe Soup Kitchen Inc: $2,500 over 1y, 0.1% of budgetBLOCK INSTITUTE INC: $2,000 over 1y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $1,000 over 1y, 0.0% of budgetWEVE GOT FRIENDS INC: $1,000 over 1y, 0.4% of budgetJILL E HARRINGTON HANZALIK MEMORIAL FUND INC: $1,000 over 1y, 1.0% of budgetNEW WORLD PREPARATORY CHARTER SCHOOL: $1,000 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 Goldman Sachs Cha…Investors Foundation …Jewish Communal FundGs Donor Advised Phil…American Endowment Fo…National Philanthropi…The Bank of America C…Vanguard Charitable E…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
The Goldman Sachs Charitable Gift FundNY14.4× affinity5 shared granteesties to 10 of 10Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Goldman Sachs Charitable Gift Fund · Investors Foundation Inc · Jewish Communal Fund · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · American Endowment Foundation · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · Vanguard Charitable Endowment Program · 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 The Sidney & Mildred Edelstein Foundation funds: left to right is the share of its income from government, bottom to top the share from The Sidney & Mildred Edelstein Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%1%3%6%10%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →
    no gov moneyreceives it· size = income
    6get no government money at all
    6report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–30%
    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 Sidney & Mildred Edelstein Foundation?

    Find your warmest path to The Sidney & Mildred Edelstein 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 28 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Sidney & Mildred Edelstein’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