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Florida · 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 FY2025(still arriving)
5
Grants FY2025
8
Organizations funded FY2024
38%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$11,500
Largest grant, FY2025
$20,000
Organizations funded a year
4 to 10
FY2018 to FY2024
States reached, FY2025
2
Total assets, FY2025
$31k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 38% of the organizations Mark and Greta Walker Foundation funded were first-time grantees, receiving 36% of its grant dollars.

New vs renewed · share of each year

In FY2024, 64% of grant dollars renewed an existing relationship; $41k went to new ones.

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

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

’18’19’20’21’22’23’24
HealthArts & CultureEducationRecreation & 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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving5$55k20%
FY20248$113k38%
FY20237$152k43%
FY20224$16k50%
FY20216$22k17%
FY20207$30k0%
FY20199$36k22%
FY201810$58k20%
99% 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

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
South Florida Public Media Group Inc$80,50090%
South Florida Pbs Inc$60,00020%
American Heart Association Inc$50,00020%
University of Miami$40,00040%
The Clearity Foundation$25,00050%
Indigenous Metabolic Health Network Inc$11,0003n/a
Gablestage Inc$8,00030%
Barry University Inc$4,00010%
American Cancer Society Inc$3,10020%
Florida Academy of Family Physicians Inc$1,60020%
Show all 15 grantees
All grantees of Mark and Greta Walker Foundation by total granted
GranteeTotal grantedYearsShare of their budget
South Florida Public Media Group Inc$80,50090%
South Florida Pbs Inc$60,00020%
American Heart Association Inc$50,00020%
University of Miami$40,00040%
The Clearity Foundation$25,00050%
Indigenous Metabolic Health Network Inc$11,0003n/a
Gablestage Inc$8,00030%
Barry University Inc$4,00010%
American Cancer Society Inc$3,10020%
Florida Academy of Family Physicians Inc$1,60020%
Junior Tennis Foundation Inc$1,00010%
Beth Meyer Synagogue$8001n/a
Baptist Health South Florida Inc$74910%
Mountaineers School of Autism Inc$4001n/a
Chabad of Novato$3601n/a

Plus 11 recipients with no EIN on record ($224k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Mark and Greta Walker Foundation supplied at peak.

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 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

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 11.

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 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.

Compare Mark and Greta Walker Foundation with peer funders

About Mark and Greta Walker Foundation

How much does Mark and Greta Walker Foundation give?
Mark and Greta Walker Foundation reported 5 grants totaling $55,300 in its FY2025 IRS filing. It funded between 4 and 10 organizations a year over FY2018 to FY2024.
What does Mark and Greta Walker Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (36%), Health (24%), Youth Development (19%).
Who are Mark and Greta Walker Foundation's largest grantees?
By total granted over FY2017 to FY2025: South Florida Public Media Group Inc ($81k), South Florida Pbs Inc ($60k), American Heart Association Inc ($50k).
Does Mark and Greta Walker Foundation fund new organizations?
In FY2024, 38% of the organizations it funded were first-time grantees.
Does Mark and Greta Walker Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Mark and Greta Walker Foundation?
Its strongest co-funders, measured against what their size predicts, include Morgan Stanley Global Impact Funding Trust Inc, National Philanthropic Trust, Donor Advised Charitable Giving Inc.
Where is Mark and Greta Walker Foundation based?
Mark and Greta Walker Foundation is based in FL.

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

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