· Private foundation
Ronnie & Jerrold Rosenbaum 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.
What you funded, over time
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k11 grants · $45k
- $10k–50k4 grants · $40k
| Recipient | Amount |
|---|---|
| BAPTIST HEALTH SYSTEM FOUNDATION | $10,000 |
| UNITED WAY OF NE FLORIDA | $10,000 |
| UF HEALTH JACKSONVILLE | $10,000 |
| MAYO CLINIC FUND | $10,000 |
| HERE TOMORROW | $6,500 |
| DONNA FOUNDATION | $6,500 |
| HOSPICE OF NE FLORIDA | $5,000 |
| JEWISH FAMILY & COMMUNITY SERVICES | $5,000 |
| JEWISH FEDERATION & FOUNDATION OF NE FL | $5,000 |
| ARC OF ST JOHNS | $5,000 |
| TULANE UNVERSITY ANNUAL FUND | $5,000 |
| MONIQUE BURR FOUNDATION | $5,000 |
| ST JUDES CHILDREN'S RESEARCH HOSPITAL | $1,000 |
| OREN MARGOL FOUNDATION | $750 |
| HOMETOWN FOUNDATION | $500 |
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, $210k) land where the poverty rate runs at 13%, against an area that typically sits at 12%. 90% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-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 +32% since the first grant, against +25% for the ones you funded once.
27 repeat relationships — 10 still active in FY2025, 17 since wound down; 5 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, 69% of grant dollars renewed an existing relationship; $26k 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
- JZJACKSONVILLE ZOOLOGICAL SOCIETY INC7× · 2017–2023 · $363k · revenue +100%
- TLTHE LJD JEWISH FAMILY & COMMUNITY SERVICES INC9× · 2017–2025 · $134k · revenue +35%
- ANAmerican National Red Cross & Its Constituent Chapters and Branches3× · 2017–2020 · $40k · revenue +46%
Funded once
- UHUF HEALTHone grant, 2023 · $10k
- JFJEWISH FEDERATION EMERGENCY ISRAEL FUNDone grant, 2023 · $10k
- ARAMERICAN RED CROSSone grant, 2024 · $10k
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.
As a part of UF Health, the organization's mission is to promote health through outstanding and high-quality patient care, innovative and rigorous education in the health professions and biomedical sciences, and high-impact research across…
To advance health and well-being of persons requiring rehabilitation through superior outcomes, service, education and research.
For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…
As a part of UF Health, the organization's mission is to promote health through outstanding and high-quality patient care, innovative and rigorous education in the health professions and biomedical sciences, and high-impact research across…
The purposes of the laboratory are scientific, medical, charitable, and educational. our mission is to discover precise genomic solutions for disease and empower the biomedical community.
Miami jewish health systems, inc. was incorporated to provide shelter for the elderly and develop social & health programs relating to their care. in addition, research & educational programs are conducted for the elderly to enhance their…
As part of the baptist health network, the mission of doctors hospital, inc. is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve. baptist health is a…
UF Health's mission is to promote health through outstanding and high-quality patient care, innovative and rigorous education in the health professions and biomedical sciences, and high-impact research across the spectrum of basic,…
Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.
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…
As part of the baptist health network, the mission of miami cancer institute at baptist health, inc is to improve the health and well-being of individuals, and to promote the sanctity and preservation of life, in the communities we serve.…
As a part of UF Health, the organization's mission is to promote health through outstanding and high-quality patient care, innovative and rigorous education in the health professions and biomedical sciences, and high-impact research across…
For reference, the grantee most central to the portfolio’s shape is St Jude Children's Research Hospital Inc and the most unlike its peers is Oren Margol 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.
Your grantees are a median of 36 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 15% 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.
31 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. 31 of the 57 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 JACKSONVILLE ZOOLOGICAL SOCIETY INC ↗
- Who funds THE LJD JEWISH FAMILY & COMMUNITY SERVICES INC ↗
- Who funds JEWISH FEDERATION & FOUNDATION OF NORTHEAST FLORIDA INC ↗
- Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
- Who funds UNITED WAY OF NORTHEAST FLORIDA INC ↗
- Who funds The Arc of the St Johns Inc ↗
- Who funds Northwestern University ↗
- Who funds MUSCULAR DYSTROPHY ASSOCIATION INC ↗
- Who funds The Donna Foundation Inc ↗
- Who funds Baptist Health System Foundation Inc ↗
- Who funds HERE TOMORROW INC ↗
- Who funds THE CHILDREN'S HOME SOCIETY OF FLORIDA ↗
- Who funds AMERICAN CANCER SOCIETY INC ↗
- Who funds River Garden Foundation Inc ↗
- Who funds JACKSONVILLE HUMANE SOCIETY INC ↗
- Who funds COMMUNITY ASSISTANCE FOUNDATION INC ↗
- Who funds MONIQUE BURR FOUNDATION FOR CHILDREN INC ↗
- Who funds NORTH FLORIDA SCHOOL OF SPECIAL EDUCATION INC ↗
- Who funds BIRTHRIGHT ISRAEL FOUNDATION ↗
- Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC ↗
- Who funds THE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND ↗
- Who funds IM SULZBACHER CENTER FOR THE HOMELESS INC ↗
- Who funds SAFETY SHELTER OF ST JOHNS COUNTY 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: The Community Foundation for Northeast Florida Inc · Jacksonville Jaguars Foundation Inc · Pga Tour Inc · Stellar Foundation · The Gate Foundation Inc · Dubow Family Foundation Inc · Csx Foundation Inc · Joan & H Ronald Levin Family Foundation · The Jim Moran Foundation Inc · Mayo Clinic Group Return · Aetna Foundation Inc · McKesson Foundation 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 Ronnie & Jerrold Rosenbaum 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.
- Alpha-Omega Miracle Home Inc — 46% of income from government
- Im Sulzbacher Center for the Homeless Inc — 23% of income from government
- The Children's Home Society of Florida — 6% of income from government
- United Way of Northeast Florida Inc — 2% of income from government
- Jacksonville Zoological Society Inc — 0% 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 Ronnie & Jerrold Rosenbaum Family Foundation Inc?
Find your warmest path to Ronnie & Jerrold Rosenbaum 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.