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Isenberg Family Foundation at a glance

· Private foundation

Isenberg Family 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.

$52k
Granted FY2025still arriving
8
Grants FY2025still arriving
5
States reached
$33k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0183% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Religion$70kArts & Culture$45kHealth$24kYouth Development$16kInternational$15kEducation$13kFood & Nutrition$4kPhilanthropy$2kOther$0
02FY2025 · 8 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k7 grants · $19k
  • $10k–50k1 grant · $33k
$3,000
Median grant
5
States reached
$19k
Total assets
Largest grants
RecipientAmount
JAFCO$32,800
MUSEUM OF THE BIBLE$5,000
CONGREGATION OCEAN REEF$4,000
SOUTH FLORIDA PBS$3,000
ST JUDE CHILDREN'S RESEARCH HOSPIT$2,500
UNIVERSITY OF MIAMI$2,500
HIAS$1,076
RONALD MCDONALD HOUSE$1,057
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 (FY20–23, $16k) land where the poverty rate runs at 13%, against an area that typically sits at 12%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%THE KEYS CHILDREN'S FOUNDATION: $5k → 13%THE KEYS CHILDREN'S FOUNDATION: $5k → 13%JFCS: $500 → 22%THE KEYS CHILDREN FOUNDATION: $5k → 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
NY
MA
PA
CT
KY
MD
NM
TN
DC
HI
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.
$218k · 16 repeat orgs$37k to everyone else

Grantees it renews have grown median revenue +51% since the first grant, against +1% for those funded once.

16 repeat relationships: 5 still active in FY2025, 11 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

16
23

Total granted

$218k
$30k

Median revenue growth · since first grant

+51%
+1%

Still filing today

50%
39%

New vs renewed · share of each year

In FY2025, 86% of grant dollars renewed an existing relationship; $7k went to new ones.

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

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

’19’20’21’22’23’24’25
InternationalArts & CultureHealthHuman ServicesFood & NutritionEducationOther
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

  • OR
    OCEAN REEF CHAPEL FOUNDATION INC
    5× · 2019–2023 · $41k · revenue ×19
  • OR
    OCEAN REEF CULTURAL CENTER INC
    4× · 2020–2024 · $25k · revenue +30%
  • SOUTH FLORIDA PBS INC
    7× · 2019–2025 · $17k · revenue +46%

Funded once

  • BH
    BAPTIST HEALTH FOUNDATION
    one grant, 2024 · $10k
  • RS
    RODEPH SHALOM CONGREGATION
    one grant, 2020 · $3k
  • IG
    Individual grant recipient
    one grant, 2020 · $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
The Coral Reef and Marine Science Foundation Inc C/O James Bildner
—
2
The Children's Hospital of Philadelphia

The children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…

Health
3
Fairchild Tropical Botanic Garden Inc

We harness the power of plants for humankind and share the joy and beauty of tropical gardening with everyone. fairchild tropical botanic garden is a museum of tropical plants within a world famous, 83-acre designed landscape. it was…

Environment
4
Oceana Inc

To advocate for policy changes by governments and corporations in order to preserve ocean life and return the oceans to their former abundance.

Environment
5
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
6
Schmidt Ocean Institute
Science & Tech
7
University of Miami
—
8
Observer Research Foundation America

Organization mission the observer research foundation america orf america is an independent, non-partisan, and nonprofit organization in washington dc dedicated to addressing policy challenges facing the united states, india, and their…

International
9
Council On Foreign Relations Inc

The council on foreign relations (cfr) is an independent, nonpartisan membership organization, think tank, and publisher dedicated to being a resource for its members, government officials, business executives, journalists, educators and…

International
10
Middle East Media and Research Institute Inc

The middle east media research institute (memri) explores the middle east through its media, providing timely translations from arabic, farsi, urdu, pashtu, and turkish media and publishing original analysis of political, ideological,…

International
11
Oceanit Research Foundation
Science & Tech
12
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
How this is measured
The grantee most central to the portfolio’s shape is Jewish Family & Children's Service of Greater Philadelphia; the most unlike its peers is Museum of the Bible. 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

20 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. 20 of the 43 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)
20/20
Grantees still filing
13/20
Grew since first funded

Where the money sits, by cause and then by grantee

OCEAN REEF CHAPEL FOUNDATION INC: $41,000 · OtherOCEAN REEF CHAPEL FOUNDATION INCJAFCO: $40,000 · OtherJAFCOCONGREGATION OCEAN REEF INC: $18,950 · OtherCONGREGATION OCEAN REEF INCIndividual grant recipient: $16,315 · OtherIndividual grant recipientBAPTIST HEALTH FOUNDATION: $10,000 · OtherBAPTIST HEALTH FOUNDATION+25 more: $27,158 · Other+25 moreOCEAN REEF CULTURAL CENTER INC: $25,000 · Arts & CultureOCEAN REEF CULTURAL…SOUTH FLORIDA PBS INC: $17,000 · Arts & CultureSOUTH FLORIDA PBS I…PHILADELPHIA MUSEUM OF ART: $1,500 · Arts & CultureKEYS CHILDREN'S FOUNDATION INC: $15,661 · Human Services+1 more: $500 · Human ServicesSave The Children Federation Inc: $10,500 · InternationalHIAS INC: $1,076 · InternationalFRIENDS OF THE ISRAEL DEFENSE FORCES: $1,000 · InternationalUNITED STATES FUND FOR UNICEF: $1,000 · InternationalUniversity of Miami: $12,500 · EducationST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $11,500 · Health+1 more: $250 · HealthPhilabundance: $3,700 · Food & Nutrition
Other$153,423Arts & Culture$43,500Human Services$16,161International$13,576Education$12,500Health$11,750Food & Nutrition$3,700

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 budgetOCEAN REEF CHAPEL FOUNDATION INC: $41,000 over 5y, 0.7% of budgetOCEAN REEF CULTURAL CENTER INC: $25,000 over 4y, 0.1% of budgetSOUTH FLORIDA PBS INC: $17,000 over 7y, 0.0% of budgetKEYS CHILDREN'S FOUNDATION INC: $15,661 over 3y, 1.3% of budgetUniversity of Miami: $12,500 over 5y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $11,500 over 7y, 0.0% of budgetSave The Children Federation Inc: $10,500 over 5y, 0.0% of budgetMUSEUM OF THE BIBLE: $5,000 over 1y, 0.0% of budgetPhilabundance: $3,700 over 3y, 0.0% of budgetPHILADELPHIA MUSEUM OF ART: $1,500 over 1y, 0.0% of budgetHIAS INC: $1,076 over 1y, 0.0% of budgetORCAT INC: $1,000 over 1y, 0.0% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES: $1,000 over 1y, 0.0% of budgetUNITED STATES FUND FOR UNICEF: $1,000 over 1y, 0.0% of budgetOhr Torah Stone Institutions of Israel: $500 over 1y, 0.0% of budgetJEWISH FAMILY & CHILDREN'S SERVICE OF GREATER PHILADELPHIA: $500 over 1y, 0.0% of budgetOCEAN REEF MEDICAL CENTER FOUNDATION INC: $500 over 1y, 0.0% of budgetOCEAN REEF VOLUNTEER FIRE DEPARTMENT INC: $250 over 1y, 0.0% of budgetDana-Farber Cancer Institute Inc: $250 over 1y, 0.0% of budgetHAWAII COMMUNITY FOUNDATION: $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 OCEAN REEF CHAPEL FOUNDATION INC ↗
  • Who funds OCEAN REEF CULTURAL CENTER INC ↗
  • Who funds SOUTH FLORIDA PBS INC ↗
  • Who funds KEYS CHILDREN'S FOUNDATION INC ↗
  • Who funds University of Miami ↗
  • Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
  • Who funds Save The Children Federation Inc ↗
  • Who funds MUSEUM OF THE BIBLE ↗
  • Who funds Philabundance ↗
  • Who funds PHILADELPHIA MUSEUM OF ART ↗
  • Who funds HIAS INC ↗
  • Who funds ORCAT INC ↗
  • Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
  • Who funds UNITED STATES FUND FOR UNICEF ↗
  • Who funds Ohr Torah Stone Institutions of Israel ↗
  • Who funds JEWISH FAMILY & CHILDREN'S SERVICE OF GREATER PHILADELPHIA ↗
  • Who funds OCEAN REEF MEDICAL CENTER FOUNDATION INC ↗
  • Who funds OCEAN REEF VOLUNTEER FIRE DEPARTMENT INC ↗
  • Who funds Dana-Farber Cancer Institute Inc ↗
  • Who funds HAWAII COMMUNITY FOUNDATION ↗

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 Schuble Family Fo…The John H and Kather…Paul W Dimaura Charit…The Holmes Family Fou…George and Ruth Harms…The Hajim Family Foun…Raymond James Charita…Otzen Family Foundati…100 Times Foundation …John a & Marlene L Bo…Vinton Family Foundat…C Hamilton Sloan Foun…
The Schuble Family Foundation IncMD15.8× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Schuble Family Foundation Inc · The John H and Katherine J Weiland Foundation Inc · Paul W Dimaura Charitable Trust Attn Edward F Fay Esq · The Holmes Family Foundation Inc · George and Ruth Harms Foundation · The Hajim Family Foundation · Raymond James Charitable Endowment Fund · Otzen Family Foundation Incorporated · 100 Times Foundation Corporation · John a & Marlene L Boll Foundation · Vinton Family Foundation · C Hamilton Sloan 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 Isenberg Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Isenberg Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 60%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 7%
  • Hias Inc: 88% of income from government
  • Save the Children Federation Inc: 30% of income from government
  • Dana-Farber Cancer Institute Inc: 7% of income from government
  • University of Miami: 5% of income from government
  • South Florida Pbs Inc: 0% of income from government
no gov moneyreceives it· size = income
6get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
1rely 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.

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 43 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 Isenberg 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