· Private foundation
Leonard Mayer 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.
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.
| Recipient | Amount |
|---|---|
| PARKINSONS FOUNDATION | $5,000 |
| PROSTATE CANCER FOUNDATION | $5,000 |
| MEMORIAL SLOAN KETTERING | $4,000 |
| FRIENDS OF THE ISRAEL DEFENSE FORCES | $3,000 |
| ALZHEIMERS ASSOCIATION | $3,000 |
| ST JUDE CHILDRENS HOSPITAL | $3,000 |
| AMERICAN FRIENDS OF MAGEN DAVID | $3,000 |
| AMERICAN MACULAR DEGENERATION FOUNDATION | $2,000 |
| HILLEL OF BROWARD AND PALM BEACH | $1,800 |
| HOLOCAUST MEMORIAL MUSEUM | $1,000 |
| WOUNDED WARRIOR PROJECT | $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, $2k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 100% 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 +17% for the ones you funded once.
24 repeat relationships — 11 still active in FY2025, 13 since wound down.
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, 100% of grant dollars renewed an existing relationship; $0 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
PARKINSON'S FOUNDATION INC5× · 2021–2025 · $13k · revenue +102%- ADALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC7× · 2018–2025 · $11k · revenue +32%
- HOHILLEL OF BROWARD AND PALM BEACH INC6× · 2020–2025 · $6k · revenue +140%
Funded once
- IGIndividual grant recipientone grant, 2019 · $2k
- HFHOSPITALS FOR SPECIAL SURGERYone grant, 2023 · $1k
- IFINTERNATIONAL FELLOWSHIP OF CHRISTIANS & JEWS INCone grant, 2023 · $1k · revenue +17%
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.
Support the hebrew univ. of jerusalem, israel's foremost center of higher edu. & research.
The organization seeks to reinforce the foundations of israel as a jewish and democratic state. it acts to promote programs to educate the israeli public on the importance of both values and to demonstrate how each contributes to and…
To strengthen israel's future in these areas: 1)providing new immigrants with assistance in a few key areas: representing them as they navigate government ministries and assisting them with their challenges as new immigrants to israel.…
The fund's primary exempt mission is to solicit grants and contributions to support the educational mission of the bar-ilan university's azrieli faculty of medicine in the galilee.
Brightfocus foundation funds exceptional research worldwide to defeat alzheimer's disease, macular degeneration, and glaucoma and provides expert information on these heartbreaking diseases. please refer to schedule o for a complete…
The mission of the organization is to enrich the lives of jewish undergraduate and graduate students so that they may enrich the jewish people and the world.
Hadassah, the women's zionist organization of america, inc., a new york not-for-profit corporation ("hwzoa") enhances the health and lives of people in israel, the united states and worldwide through education, advocacy, women's…
We fundraise in the u.s. to support, and raise awareness of, bar-ilan university in israel.
For reference, the grantee most central to the portfolio’s shape is Pef Israel Endowment Funds Inc and the most unlike its peers is The Gift of Life Corporation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
15 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. 15 of the 38 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 PARKINSON'S FOUNDATION INC ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds PEF ISRAEL ENDOWMENT FUNDS INC ↗
- Who funds HILLEL OF BROWARD AND PALM BEACH INC ↗
- Who funds AMERICAN MACULAR DEGENERATION GOEHRING ↗
- Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES ↗
- Who funds Boca Raton Regional Hospital Foundation Inc ↗
- Who funds WOUNDED WARRIOR PROJECT INC ↗
- Who funds THE DOE FUND INC ↗
- Who funds INTERNATIONAL FELLOWSHIP OF CHRISTIANS & JEWS INC ↗
- Who funds CONGENITAL HEART DEFECT COALITION ↗
- Who funds FLORIDA SOCIETY FOR MIDDLE EAST STUDIES ↗
- Who funds FLORIDA ATLANTIC UNIVERSITY FOUNDATION INC ↗
- Who funds JEWISH NATIONAL FUND (KEREN KAYEMETH LEISRAEL) INC ↗
- Who funds THE GIFT OF LIFE CORPORATION ↗
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 set of overlaps that mostly run through you, not between each other.
Open a dossier: Amazonsmile Foundation
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 Leonard Mayer 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, a single department, or state — and drag the year to watch it move.
- Wounded Warrior Project 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.