· Private foundation
Mark and Greta Walker 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.
By grant size · FY2025
- Under $10k2 grants · $4k
- $10k–50k3 grants · $52k
| Recipient | Amount |
|---|---|
| SOUTH FLORIDA PBS INC | $20,000 |
| FRIENDS OF WLRN | $20,000 |
| BOYS & GIRLS CLUB OF GREATER MIAMI | $11,500 |
| INDIGENOUS METABOLIC HEALTH NETWORK | $3,000 |
| BETH MEYER SYNAGOGUE | $800 |
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.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 98% of your 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.
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.
13 repeat relationships — 4 still active in FY2025, 9 since wound down; 1 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, 99% of grant dollars renewed an existing relationship; $800 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
- SFSOUTH FLORIDA PUBLIC MEDIA GROUP INC9× · 2017–2025 · $81k · revenue +35%
SOUTH FLORIDA PBS INC2× · 2023–2025 · $60k · revenue +78%- AHAmerican Heart Association Inc2× · 2023–2024 · $50k · revenue +16%
Funded once
- AFAMERICAN FRIENDS OF MAGEN DAVID ADOone grant, 2023 · $36k
- ARAMERICAN RED CROSSone grant, 2024 · $20k
- AAALZHEIMER'S ASSOCIATIONone grant, 2024 · $20k
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 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 part of the baptist health network, the mission of baptist health medical group 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…
As part of the baptist health network, the mission of south miami hospital 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…
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…
As part of the baptist health network, the mission of baptist hospital of miami 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…
As part of the baptist health network, the mission of mariner's hospital 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…
As part of the baptist health network, the mission of baptist health south florida foundation, 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.…
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.
The mission of Nova Southeastern University-a selective, doctoral research university-is to deliver academic programs in a dynamic, innovative environment. We foster academic excellence, leadership, integrity (continued on Schedule O) and…
As part of the baptist health network, the mission of boca raton regional hospital 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…
As part of the baptist health network, the mission of homestead 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…
For reference, the grantee most central to the portfolio’s shape is South Florida Public Media Group Inc and the most unlike its peers is Mountaineers School of Autism Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
13 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. 13 of the 27 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 SOUTH FLORIDA PUBLIC MEDIA GROUP INC ↗
- Who funds SOUTH FLORIDA PBS INC ↗
- Who funds American Heart Association Inc ↗
- Who funds University of Miami ↗
- Who funds The Clearity Foundation ↗
- Who funds GABLESTAGE INC ↗
- Who funds BARRY UNIVERSITY INC ↗
- Who funds AMERICAN CANCER SOCIETY INC ↗
- Who funds GREATER MIAMI JEWISH FEDERATION INC ↗
- Who funds Florida Academy of Family Physicians Inc ↗
- Who funds JUNIOR TENNIS FOUNDATION INC ↗
- Who funds Baptist Health South Florida Inc ↗
- Who funds MOUNTAINEERS SCHOOL OF AUTISM 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: Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Mark and Greta Walker 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.
- University of Miami — 5% of income from government
- Barry University Inc — 1% of income from government
- South Florida Pbs 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.