· Private foundation
I Waldbaum Family Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k19 grants · $95k
- $10k–50k25 grants · $495k
- $50k–250k2 grants · $210k
| Recipient | Amount |
|---|---|
| SID JACOBSON JCC | $157,000 |
| JEWISH NATIONAL FUND | $52,500 |
| JEWISH LEARNING INITIATIVE ON CAMPUS | $36,000 |
| JEWISH THEOLOGICAL SEMINARY | $35,000 |
| JEWISH MUSEUM | $35,000 |
| ISLAND HARVEST | $35,000 |
| UJA | $32,500 |
| QUERENCIA COMMUNITY FOUNDATION | $30,000 |
| MEMORIAL SLOAN KETTERING CANCER CENTER | $30,000 |
| B'NAI VAIL | $25,000 |
| ALEXANDER MUSS HIGH SCHOOL | $25,000 |
| THE HERB IRVING COMPREHENSIVE CANCER CENTER | $20,000 |
| FRIENDS OF MONARCH EFFECT FOUNDATION | $20,000 |
| MICHAEL J FOX FOUNDATION | $20,000 |
| BIRTHRIGHT ISRAEL | $16,000 |
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.
Your human-services grants (FY17–25, $1.2M) land where the poverty rate runs at 6%, against an area that typically sits at 10%. 6% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.
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
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.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +30% since the first grant, against +1% for the ones you funded once.
71 repeat relationships — 33 still active in FY2025, 38 since wound down; 9 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 79% of grant dollars renewed an existing relationship; $153k went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- SJSID JACOBSON JEWISH COMMUNITY CENTER9× · 2017–2025 · $881k · revenue +26%
- IHISLAND HARVEST LTD9× · 2017–2025 · $198k · revenue +110%
- TJTHE JEWISH MUSEUM7× · 2017–2025 · $186k · revenue +99%
Funded once
- AFAMERICAN FRIENDS SHEBA MEDICAL CENTERone grant, 2024 · $25k
- MOMORASHA OLAMI INCgraduatedone grant, 2018 · $15k · revenue +68%
- AFAMERICAN FRIENDS OF WGH WESTERN GALILEE HOSPITAL NAHARIYA C/O THE LAPIN GROUPgraduatedone grant, 2018 · $15k · revenue +49%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
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.
See schedule othe organization is a not-for-profit, public charity established in 1911 to provide for the quality and continuity of jewish life in western new york and around the world through private philanthropy. the foundation seeks,…
Minneapolis jewish federation is a nonprofit organization that promotes a culture of philanthropy, leverages resources to meet local and global jewish needs, and facilitates community planning to ensure a thriving and secure future.
Support the hebrew univ. of jerusalem, israel's foremost center of higher edu. & research.
Jcrc-ny builds relationships to advance the values, interests and security of the new york jewish community and to create a more interconnected new york for all.
Mjhs health system is a charitable not-for-profit established to support the activities of affiliated organizations. mjhs is built on the core values of compassion, dignity and respect, first established by the four brooklyn ladies in…
Based on jewish values, the jewish federation of greater los angeles convenes and leads the community and leverages its resources to assure the continuity of the jewish people, support a secure state of israel, care for jews in need here…
The jewish agency binds jews across ideologies and civilizations together in a worldwide jewish family with israel at its center. it provides the global framework for aliyah, ensures global jewish safety, strengthens jewish identity and…
To facilitate and promote philanthropy through donor advised funds.
AJC's mission is to enhance the wellbeing of the Jewish people and Israel, and to advance human rights and democratic values in the United States and around the world. In pursuit of this mission, AJC advances democratic principles, fights…
Committed to exceptional healthcare quality for all and actively engaged with our community, einstein drives scientific discovery and educates compassionate leaders in health and science.
To promote partnership and coexistence among jewish and arab citizens of israel by providing support for integrated schools and providing funding for and assisting in program development in connection with israeli nonprofits with similar…
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…
For reference, the grantee most central to the portfolio’s shape is Metropolitan Jewish Health System Foundation and the most unlike its peers is National Emphysema Foundation Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 41 years old; the field is 18. You back the established end — and your money leans older still.
The field is 19% startups (under 5 years old) — 1% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 10% of the field you don’t fund.
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.
75 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 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 75 of the 139 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.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
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 SID JACOBSON JEWISH COMMUNITY CENTER ↗
- Who funds JEWISH NATIONAL FUND (KEREN KAYEMETH LEISRAEL) INC ↗
- Who funds ISLAND HARVEST LTD ↗
- Who funds THE JEWISH MUSEUM ↗
- Who funds THE MICHAEL J FOX FOUNDATION FOR PARKINSON'S RESEARCH ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds SYRACUSE UNIVERSITY ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds Ronald McDonald House Charities New York Metro Inc ↗
- Who funds LUNG CANCER RESEARCH FOUNDATION ↗
- Who funds MEMORIAL SLOAN-KETTERING CANCER CENTER ↗
- Who funds NATIONAL INSTITUTE FOR REPRODUCTIVE HEALTH INC ↗
- Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM ↗
- Who funds NATIONAL EMPHYSEMA FOUNDATION INC ↗
- Who funds METROPOLITAN NEW YORK COORDINATING COUNCIL ON JEWISH POVERTY ↗
- Who funds METROPOLITAN JEWISH HEALTH SYSTEM FOUNDATION ↗
- Who funds WORLD CENTRAL KITCHEN INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds Save The Children Federation Inc ↗
- Who funds QUERENCIA COMMUNITY FOUNDATION ↗
- Who funds Life Town 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.
Open a dossier: Jewish Communal Fund · Community Foundation of New Jersey · S&P Global Foundation Fka the McGraw-Hill Research Foundation · The Goldman Sachs Charitable Gift Fund · American Express Foundation · Fjc · Chubb Charitable Foundation · Jewish Community Foundation of Southern Arizona · Jewish Federation of Metropolitan Chicago · American Endowment Foundation · Jpmorgan Chase Foundation · Morgan Stanley Global Impact Funding Trust Inc
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 I Waldbaum Family Foundation 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 or a single department — and drag the year to watch it move.
- Save the Children Federation Inc — 30% of income from government
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.
Warm introductions · Powered by PlinthPlus
How do I get to I Waldbaum Family Foundation?
Find your warmest path to I Waldbaum Family 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.