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Mark and Greta Walker Foundation at a glanceMostly funded, not a grantmaker: see who funds it →

· 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.

$55k
Granted FY2025still arriving
5
Grants FY2025still arriving
2
States reached
$20k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0199% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Arts & Culture$185kHealth$124kYouth Development$99kEducation$44kReligion$27kPublic Safety & Disaster$20kPhilanthropy$13kRecreation & Sports$1kOther$0
02FY2025 · 5 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k2 grants · $4k
  • $10k–50k3 grants · $52k
$11,500
Median grant
2
States reached
$31k
Total assets
Largest grants
RecipientAmount
FRIENDS OF WLRN$20,000
SOUTH FLORIDA PBS INC$20,000
BOYS & GIRLS CLUB OF GREATER MIAMI$11,500
INDIGENOUS METABOLIC HEALTH NETWORK$3,000
BETH MEYER SYNAGOGUE$800
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 (FY17–25) land where the poverty rate runs at 13%, against an area that typically sits at 10%. 98% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%THE CLEARITY FOUNDATION: $5k → 11%AMERICAN HEART ASSOCIATION: $30k → 11%JAFCO: $3k → 13%AMERICAN CANCER SOCIETY: $3k → 15%AMERICAN ACADEMY OF FAMILY PHYSICIA: $3k → 5%THE CLEARITY FOUNDATION: $5k → 11%AMERICAN HEART ASSOCIATION: $20k → 11%JAFCO: $2k → 13%BOYS & GIRLS CLUB OF GREATER MIAMI: $25k → 15%AMERICAN ACADEMY OF FAMILY PHYSICIA: $2k → 5%THE CLEARITY FOUNDATION: $5k → 11%AMERICAN FRIENDS OF MAGEN DAVID ADO: $36k → 11%JAFCO: $2k → 13%BOYS & GIRLS CLUB OF GREATER MIAMI: $12k → 15%AMERICAN ACADEMY OF FAMILY PHYSICIA: $2k → 5%THE CLEARITY FOUNDATION: $5k → 11%JAFCO: $2k → 13%BOYS & GIRLS CLUB OF GREATER MIAMI: $12k → 15%AMERICAN ACADEMY OF FAMILY PHYSICIA: $2k → 5%THE CLEARITY FOUNDATION: $5k → 11%SOUTH FLORIDA PBS: $40k → 11%BOYS & GIRLS CLUB OF GREATER MIAMI: $11k → 15%SOUTH FLORIDA PBS INC: $20k → 11%BOYS & GIRLS CLUB OF GREATER MIAMI: $10k → 15%BOYS & GIRLS CLUB OF GREATER MIAMI: $10k → 15%AMERICAN RED CROSS: $20k → 13%BOYS & GIRLS CLUB OF GREATER MIAMI: $10k → 15%ALZHEIMER'S ASSOCIATION: $20k → 13%BOYS & GIRLS CLUB OF GREATER MIAMI: $6k → 15%BOYS & GIRLS CLUB OF GREATER MIAMI: $4k → 15%GREATER MIAMI JEWISH FEDERATION: $3k → 15%FRIENDS OF WLRN: $30k → 15%FRIENDS OF WLRN: $20k → 15%FRIENDS OF WLRN: $20k → 15%FRIENDS OF WLRN: $2k → 15%FRIENDS OF WLRN: $2k → 15%FRIENDS OF WLRN: $2k → 15%INDIGENOUS METABOLIC HEALTH NETWORK: $5k → 15%INDIGENOUS METABOLIC HEALTH NETWORK: $3k → 15%INDIGENOUS METABOLIC HEALTH NETWORK: $3k → 15%INDIGENOUS METABOLIC DISEASE NETWOR: $3k → 15%GABLESTAGE: $3k → 15%GABLESTAGE: $3k → 15%GABLESTAGE: $3k → 15%BARRY UNIVERSITY: $4k → 15%TEMPLE ISRAEL OF MIAMI: $10k → 15%TEMPLE ISRAEL OF MIAMI: $9k → 15%TEMPLE ISRAEL OF MIAMI: $8k → 15%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.
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.

83%of every dollar goes to organizations it has funded before.
$424k · 13 repeat orgs$87k to everyone else

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

Re-uppedFunded once

Organizations

13
12

Total granted

$424k
$86k

Median revenue growth · since first grant

+35%
+77%

Still filing today

62%
33%

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $800 went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
HealthEducationArts & CultureRecreation & SportsOther
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

  • SF
    SOUTH FLORIDA PUBLIC MEDIA GROUP INC
    9× · 2017–2025 · $81k · revenue +35%
  • SOUTH FLORIDA PBS INC
    2× · 2023–2025 · $60k · revenue +78%
  • AH
    American Heart Association Inc
    2× · 2023–2024 · $50k · revenue +16%

Funded once

  • AF
    AMERICAN FRIENDS OF MAGEN DAVID ADO
    one grant, 2023 · $36k
  • AR
    AMERICAN RED CROSS
    one grant, 2024 · $20k
  • AA
    ALZHEIMER'S ASSOCIATION
    one grant, 2024 · $20k
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
University of Miami
—
2
Miami Cancer Institute At Baptist Health Inc

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.…

Health
3
Baptist Health Medical Group Inc

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…

Health
4
South Miami Hospital Inc

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…

Health
5
Doctors Hospital Inc

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…

Health
6
Baptist Hospital of Miami Inc

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…

Health
7
Mariners Hospital Inc

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…

Health
8
Baptist Health South Florida Foundation Inc

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.…

Health
9
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
10
Nova Southeastern University Inc

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…

Education
11
Boca Raton Regional Hospital Inc

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…

Health
12
Homestead Hospital Inc

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…

Health
How this is measured
The grantee most central to the portfolio’s shape is South Florida Public Media Group Inc; 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.
04the grantee network

13 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. 13 of the 27 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)
2
Early backer (in before they grew)
13/13
Grantees still filing
10/13
Grew since first funded

Where the money sits, by cause and then by grantee

BOYS & GIRLS CLUB OF GREATER MIAMI: $99,200 · OtherBOYS & GIRLS CLUB OF GREATER MIAMIAMERICAN FRIENDS OF MAGEN DAVID ADO: $36,000 · OtherAMERICAN FRIENDS OF MAGEN DAVID ADOTEMPLE ISRAEL OF MIAMI: $26,272 · OtherTEMPLE ISRAEL OF MIAMIAMERICAN RED CROSS: $20,000 · OtherAMERICAN RED CROSSALZHEIMER'S ASSOCIATION: $20,000 · OtherALZHEIMER'S ASSOCIATIONINDIGENOUS METABOLIC HEALTH NETWORK INC: $11,000 · OtherJAFCO: $9,840 · OtherAMERICAN ACADEMY OF FAMILY PHYSICIA: $9,000 · Other+8 more: $14,460 · Other+8 moreSOUTH FLORIDA PUBLIC MEDIA GROUP INC: $80,500 · HealthSOUTH FLORIDA PUBLIC MEDIA GROUP IN…American Heart Association Inc: $50,000 · HealthAmerican Heart Association IncThe Clearity Foundation: $25,000 · HealthThe Clearity Foundation+2 more: $3,849 · HealthSOUTH FLORIDA PBS INC: $60,000 · Arts & CultureSOUTH FLORIDA…University of Miami: $40,000 · EducationUniversit…BARRY UNIVERSITY INC: $4,000 · EducationBARRY UNI…+1 more: $400 · EducationGREATER MIAMI JEWISH FEDERATION INC: $3,000 · PhilanthropyJUNIOR TENNIS FOUNDATION INC: $1,000 · Recreation & Sports
Other$245,772Health$159,349Arts & Culture$60,000Education$44,400Philanthropy$3,000Recreation & Sports$1,000

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 budgetSOUTH FLORIDA PUBLIC MEDIA GROUP INC: $80,500 over 9y, 0.2% of budgetSOUTH FLORIDA PBS INC: $60,000 over 2y, 0.2% of budgetAmerican Heart Association Inc: $50,000 over 2y, 0.0% of budgetUniversity of Miami: $40,000 over 4y, 0.0% of budgetThe Clearity Foundation: $25,000 over 5y, 0.3% of budgetGABLESTAGE INC: $8,000 over 3y, 0.3% of budgetBARRY UNIVERSITY INC: $4,000 over 1y, 0.0% of budgetAMERICAN CANCER SOCIETY INC: $3,100 over 2y, 0.0% of budgetGREATER MIAMI JEWISH FEDERATION INC: $3,000 over 1y, 0.0% of budgetFlorida Academy of Family Physicians Inc: $1,600 over 2y, 0.1% of budgetJUNIOR TENNIS FOUNDATION INC: $1,000 over 1y, 0.2% of budgetBaptist Health South Florida Inc: $749 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.

  • 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 ↗

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.

Morgan Stanley Global…National Philanthropi…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Morgan Stanley Global Impact Funding Trust IncIN8.8× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

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

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 Mark and Greta Walker Foundation funds: left to right is the share of its income from government, bottom to top the share from Mark and Greta Walker Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%4%8%11%15%share of the org’s income from government →median 1%
  • 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
no gov moneyreceives it· size = income
1get no government money at all
6report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–15%
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.

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 27 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 Mark and Greta Walker’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