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The Salzberg Foundation at a glance

· Private foundation

The Salzberg 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.

$27k
Granted FY2025still arriving
10
Grants FY2025still arriving
5
States reached
$5k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0196% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Health$36kEducation$30kScience & Tech$18kArts & Culture$16kCommunity Improvement$10kEnvironment$7kRecreation & Sports$7kMembership Benefit$6kOther$0
02FY2025 · 10 grants

Where the money goes

Grants by size, and the largest recipients.

$2,500
Median grant
5
States reached
$644k
Total assets
Largest grants
RecipientAmount
HARVARD UNIVERSITY$5,000
THE CHILDREN'S DREAM FUND$5,000
TAMPA JEWISH FEDERATION$5,000
CARL SCHURZ PARK CONSERVANCY$3,500
THE BUCKLEY SCHOOL$2,500
THE BREARLEY SCHOOL$2,000
THE FARMLINK PROJECT$1,000
RODALE INSTITUTE$1,000
KEEP PINELLAS BEAUTIFUL$1,000
COMMUNITY ACTION STOPS ABUSE$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:

Dollar for dollar, its grants (FY18–25) land where the poverty rate runs at 14%, against an area that typically sits at 9%. 91% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%HARVARD UNIVERSITY: $8k → 8%PROJECT DRAWDOWN: $1k → 14%RODALE INSTITUTE: $1k → 11%QUOGUE LIBRARY SOCIETY: $250 → 7%LEUKEMIA AND LYMPHOMA SOCIETY: $2k → 9%MUSEUM OF JEWISH HERITAGE: $5k → 17%VIOLENCE POLICY CENTER: $3k → 14%SAVE THE MANATEE CLUB: $1k → 11%LEARNING INDEPENDENCE FOR TOMORROW INC: $1k → 12%TAMPA JEWISH FEDERATION: $5k → 13%DUKE UNIVERSITY: $2k → 11%HARVARD UNIVERSITY: $5k → 8%MUSEUM OF JEWISH HERITAGE: $2k → 17%ENVIRONMENTAL WORKING GROUP: $2k → 14%THE CHILDREN'S DREAM FUND: $5k → 12%THE BUCKLEY SCHOOL: $3k → 17%ENVIRONMENTAL WORKING GROUP: $1k → 14%THE CHILDREN'S DREAM FUND: $5k → 12%THE BUCKLEY SCHOOL: $3k → 17%INFORMATION TECHNOLOGY AND INNOVATION FOUNDATION: $5k → 14%THE CHILDREN'S DREAM FUND: $5k → 12%THE STUDIO MUSEUM IN HARLEM: $1k → 17%INFORMATION TECHNOLOGY AND INNOVATION FOUNDATION: $5k → 14%THE CHILDREN'S DREAM FUND: $5k → 12%THE BUCKLEY SCHOOL: $3k → 17%NATIONAL GEOGRAPHIC SOCIETY: $5k → 14%CASA PINELLAS: $3k → 12%THE BREARLEY SCHOOL: $10k → 17%KEEP PINELLAS BEAUTIFUL: $1k → 12%THE BREARLEY SCHOOL: $5k → 17%KEEP PINELLAS BEAUTIFUL: $1k → 12%CARL SCHURZ PARK CONSERVANCY: $4k → 17%KEEP PINELLAS BEAUTIFUL: $500 → 12%THE BREARLEY SCHOOL: $3k → 17%THE FLORIDA HOLOCAUST MUSEUM: $3k → 12%CARL SCHURZ PARK CONSERVANCY: $2k → 17%THE FLORIDA HOLOCAUST MUSEUM: $3k → 12%THE BREARLEY SCHOOL: $2k → 17%THE FLORIDA HOLOCAUST MUSEUM: $3k → 12%DIABETES RESEARCH INSTITUTE FOUNDATION: $3k → 17%CARL SCHURZ PARK CONSERVANCY: $1k → 17%ACTORS FUND OF AMERICA: $3k → 17%ACTORS FUND OF AMERICA: $3k → 17%ENTERTAINMENT COMMUNITY FUND: $3k → 17%ENTERTAINMENT COMMUNITY FUND: $3k → 17%HOPE & HEROES CHILDREN'S CANCER FUND: $5k → 17%MADISON SQUARE PARK: $5k → 17%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

MN
NY
MA
PA
CA
VA
NC
DC
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.

67%of every dollar goes to organizations it has funded before.
$94k · 10 repeat orgs$46k to everyone else

Grantees it renews have grown median revenue +8% since the first grant, against 0% for those funded once.

10 repeat relationships: 6 still active in FY2025, 4 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

10
15

Total granted

$94k
$39k

Median revenue growth · since first grant

+8%
0%

Still filing today

90%
80%

New vs renewed · share of each year

In FY2025, 68% of grant dollars renewed an existing relationship; $7k went to new ones.

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

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

’18’21’22’23’24’25
EducationHealthArts & CultureRecreation & SportsEnvironmentCrime & LegalOther
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

  • CD
    CHILDREN'S DREAM FUND INC
    4× · 2022–2025 · $20k · revenue +15%
  • TB
    THE BREARLEY SCHOOL
    4× · 2022–2025 · $20k · revenue +8%
  • TA
    THE ACTORS' FUND OF AMERICA
    4× · 2021–2024 · $11k · revenue +8%

Funded once

  • NG
    NATIONAL GEOGRAPHIC SOCIETY
    one grant, 2023 · $5k · revenue -10%
  • IG
    Individual grant recipient
    one grant, 2021 · $5k
  • HH
    HOPE & HEROES CHILDREN'S CANCER FUND
    one grant, 2022 · $5k · revenue -11%
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
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
2
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
3
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
4
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
5
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
6
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
7
Van Andel Research Institute

Medical research organization van andel research institute is an independent biomedical research organization committed to improving the health and enhancing the lives of current and future generations.

Health
8
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
9
Food Allergy Science Initiative Inc

To accelerate the development of breakthrough discoveries that will transform the lives of people living with food allergies.

—
10
Peter G Peterson Institute for International Economics

The peterson institute for international economics (piie) is an independent nonprofit, nonpartisan research organization dedicated to strengthening prosperity and human welfare in the global economy through expert analysis and practical…

Social Science
11
Dana-Farber Cancer Institute Inc

The mission of dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…

Health
12
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
How this is measured
The grantee most central to the portfolio’s shape is The Actors' Fund of America; the most unlike its peers is American Diabetes Association. 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

25 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. 25 of the 29 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)
1
Early backer (in before they grew)
25/25
Grantees still filing
11/25
Grew since first funded

Where the money sits, by cause and then by grantee

THE BREARLEY SCHOOL: $19,500 · EducationTHE BREARLEY SCHOOLPresident and Fellows of Harvard College: $13,000 · EducationPresident and Fellows of Harva…NATIONAL GEOGRAPHIC SOCIETY: $5,000 · EducationNATIONAL GEOGRAPHIC SOCIETYDUKE UNIVERSITY: $2,000 · Education+2 more: $2,000 · EducationCHILDREN'S DREAM FUND INC: $20,000 · OtherCHILDREN'S DREAM FUND INCTHE BUCKLEY SCHOOL: $8,000 · OtherTHE BUCKLEY SCHOOLIndividual grant recipient: $5,000 · OtherIndividual grant recipientIndividual grant recipient: $2,500 · OtherCOMMUNITY ACTION STOPS ABUSE INC: $2,000 · OtherENVIRONMENTAL WORKING GROUP: $3,000 · OtherENVIRONMENTAL WORKING GROUPKEEP PINELLAS BEAUTIFUL INC: $2,500 · OtherVIOLENCE POLICY CENTER: $2,500 · Other+4 more: $3,250 · Other+4 moreFLORIDA HOLOCAUST MUSEUM INC: $7,500 · Arts & CultureFLORIDA HOL…MUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST: $7,000 · Arts & CultureMUSEUM OF J…THE STUDIO MUSEUM IN HARLEM: $1,000 · Arts & CultureTHE STUDIO …HOPE & HEROES CHILDREN'S CANCER FUND: $5,000 · HealthHOPE & HER…American Diabetes Association: $5,000 · HealthAmerican D…DIABETES RESEARCH INSTITUTE FOUNDATION INC: $2,500 · HealthDIABETES R…BLOOD CANCER UNITED INC: $2,000 · HealthBLOOD CANC…CARL SCHURZ PARK CONSERVANCY INC: $6,500 · Recreation & SportsTAMPA JCCFEDERATION INC: $5,000 · Recreation & SportsTHE ACTORS' FUND OF AMERICA: $10,500 · Membership BenefitInformation Technology and Innovation Foundation: $10,000 · Community Improvement
Education$41,500Other$48,750Arts & Culture$15,500Health$14,500Recreation & Sports$11,500Membership Benefit$10,500Community Improvement$10,000

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 budgetCHILDREN'S DREAM FUND INC: $20,000 over 4y, 0.2% of budgetTHE BREARLEY SCHOOL: $19,500 over 4y, 0.0% of budgetPresident and Fellows of Harvard College: $13,000 over 2y, 0.0% of budgetTHE ACTORS' FUND OF AMERICA: $10,500 over 4y, 0.0% of budgetInformation Technology and Innovation Foundation: $10,000 over 2y, 0.1% of budgetFLORIDA HOLOCAUST MUSEUM INC: $7,500 over 3y, 0.1% of budgetMUSEUM OF JEWISH HERITAGE A LIVING MEMORIAL TO THE HOLOCAUST: $7,000 over 2y, 0.0% of budgetCARL SCHURZ PARK CONSERVANCY INC: $6,500 over 2y, 0.2% of budgetNATIONAL GEOGRAPHIC SOCIETY: $5,000 over 1y, 0.0% of budgetHOPE & HEROES CHILDREN'S CANCER FUND: $5,000 over 1y, 0.1% of budgetTAMPA JCCFEDERATION INC: $5,000 over 1y, 0.0% of budgetAmerican Diabetes Association: $5,000 over 1y, 0.0% of budgetENVIRONMENTAL WORKING GROUP: $3,000 over 1y, 0.0% of budgetVIOLENCE POLICY CENTER: $2,500 over 1y, 0.2% of budgetDIABETES RESEARCH INSTITUTE FOUNDATION INC: $2,500 over 1y, 0.0% of budgetKEEP PINELLAS BEAUTIFUL INC: $2,500 over 3y, 0.1% of budgetDUKE UNIVERSITY: $2,000 over 1y, 0.0% of budgetCOMMUNITY ACTION STOPS ABUSE INC: $2,000 over 2y, 0.0% of budgetBLOOD CANCER UNITED INC: $2,000 over 1y, 0.0% of budgetPROJECT DRAWDOWN: $1,000 over 1y, 0.0% of budgetFARMLINK PROJECT: $1,000 over 1y, 0.0% of budgetTHE STUDIO MUSEUM IN HARLEM: $1,000 over 1y, 0.0% of budgetRodale Institute: $1,000 over 1y, 0.0% of budgetLEARNING INDEPENDENCE FOR TOMORROW INC: $1,000 over 1y, 0.0% of budgetSAVE THE MANATEE CLUB INC: $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.

Rays Baseball Foundat…Vinik Family Foundati…Debartolo Family Foun…Community Foundation …Jpmorgan Chase Founda…Top Jewish Foundation…National Philanthropi…Raymond James Charita…The Pfizer Foundation…Enterprise Holdings F…American Endowment Fo…Charities Aid Foundat…
Rays Baseball Foundation IncFL15.7× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Rays Baseball Foundation Inc · Vinik Family Foundation · Debartolo Family Foundation Inc · Community Foundation of Tampa Bay Inc · Jpmorgan Chase Foundation · Top Jewish Foundation Inc · National Philanthropic Trust · Raymond James Charitable Endowment Fund · The Pfizer Foundation Inc · Enterprise Holdings Foundation · American Endowment Foundation · Charities Aid Foundation America

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 Salzberg Foundation funds: left to right is the share of its income from government, bottom to top the share from The Salzberg Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%0%1%3%5%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 3%
  • Community Action Stops Abuse Inc: 13% of income from government
  • President and Fellows of Harvard College: 7% of income from government
  • Tampa Jccfederation Inc: 3% of income from government
  • Children's Dream Fund Inc: 0% of income from government
  • Florida Holocaust Museum Inc: 0% of income from government
no gov moneyreceives it· size = income
3get 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
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 Salzberg Foundation?

Find your warmest path to The Salzberg 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 29 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 Salzberg’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