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Florida · Private foundation

The Marilyn & Marvin Weissglass 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.

$18k
Granted FY2025(still arriving)
4
Grants FY2025
4
Organizations funded FY2024
25%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$2,500
Largest grant, FY2025
$10,000
Organizations funded a year
2 to 5
FY2018 to FY2024
States reached, FY2025
3
Total assets, FY2025
$17k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 25% of the organizations The Marilyn & Marvin Weissglass Foundation funded were first-time grantees, receiving 23% of its grant dollars.

New vs renewed · share of each year

In FY2024, 77% of grant dollars renewed an existing relationship; $2k 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
EducationHuman ServicesOther
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 arriving4$18k0%
FY20244$9k25%
FY20234$7k0%
FY20225$14k20%
FY20214$9k0%
FY20203$7k0%
FY20194$9k75%
FY20182$7k0%
97% classified

What it funded, over time

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

Recreation & Sports$75kHuman Services$48kYouth Development$12kPhilanthropy$11kPublic Benefit$11kOther$0

Top grantees

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

Plus 3 recipients with no EIN on record ($21k), not named here.

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.

Donor Advised Charitable Giving IncCO6.5× affinity4 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: 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 The Marilyn & Marvin Weissglass Foundation with peer funders

About The Marilyn & Marvin Weissglass Foundation

How much does The Marilyn & Marvin Weissglass Foundation give?
The Marilyn & Marvin Weissglass Foundation reported 4 grants totaling $17,500 in its FY2025 IRS filing. It funded between 2 and 5 organizations a year over FY2018 to FY2024.
What does The Marilyn & Marvin Weissglass Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Recreation & Sports (47%), Human Services (30%), Youth Development (7%).
Who are The Marilyn & Marvin Weissglass Foundation's largest grantees?
By total granted over FY2017 to FY2025: Jewish Community Center of Si Inc ($75k), Adolph & Rose Levis Jewish Community Center Inc ($37k), Convergence Center for Policy Resolution ($11k).
Does The Marilyn & Marvin Weissglass Foundation fund new organizations?
In FY2024, 25% of the organizations it funded were first-time grantees.
Does The Marilyn & Marvin Weissglass 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 The Marilyn & Marvin Weissglass Foundation?
Its strongest co-funders, measured against what their size predicts, include Donor Advised Charitable Giving Inc, Fidelity Investments Charitable Gift Fund, Amazonsmile Foundation.
Where is The Marilyn & Marvin Weissglass Foundation based?
The Marilyn & Marvin Weissglass 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 8 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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