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Florida · Private foundation

Marvin M Tenberg Charitable Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$168k
Granted FY2025(still arriving)
9
Grants FY2025
12
Organizations funded FY2024
50%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$15,000
Largest grant, FY2025
$60,000
Organizations funded a year
6 to 12
FY2020 to FY2024
States reached, FY2025
5
Total assets, FY2025
$3.3M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 50% of the organizations Marvin M Tenberg Charitable Foundation funded were first-time grantees, receiving 25% of its grant dollars.

New vs renewed · share of each year

In FY2024, 75% of grant dollars renewed an existing relationship; $58k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
AnimalsInternationalHealthHuman ServicesReligionEnvironmentOther
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 arriving9$168k44%
FY202412$233k50%
FY20236$185k50%
FY20226$170k33%
FY20219$163k78%
FY202010$180kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Animals$570kHealth$126kFood & Nutrition$120kArts & Culture$76kCrime & Legal$60kHuman Services$40kCivil Rights$40kInternational$22kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
NY
MA
CA
MD
TN
DC
LA
FL

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 21 grantees

What it could do for these grantees

Plus 11 recipients with no EIN on record ($199k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Marvin M Tenberg Charitable Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetHumane Society of Tampa Bay Inc: $240,000 over 5y, 0.4% of budgetInternational Fund for Animal Welfare Inc: $190,000 over 5y, 0.1% of budgetFeeding America Tampa Bay Inc: $120,000 over 6y, 0.0% of budgetThe Humane Society of Baltimore County Inc: $65,000 over 3y, 0.8% of budgetChimp Haven Inc: $55,000 over 2y, 0.2% of budgetCan Community Health Inc: $41,000 over 2y, 0.0% of budgetGuiding Eyes for the Blind Inc: $20,000 over 1y, 0.1% of budgetThe Innocence Project Inc: $20,000 over 1y, 0.1% of budgetAmerican Civil Liberties Union Foundation Inc: $20,000 over 1y, 0.0% of budgetChildren of the Night: $20,000 over 1y, 0.9% of budgetMedecins Sans Frontieres USA Inc: $20,000 over 1y, 0.0% of budgetRonald McDonald House Global: $20,000 over 1y, 0.0% of budgetStarting Right Now: $15,000 over 1y, 0.3% of budgetSusan E Terry Foundation Inc: $15,000 over 1y, 4.0% of budgetSt Jude Children's Research Hospital Inc: $10,000 over 1y, 0.0% of budgetHealing Hearts Cafe Inc: $10,000 over 1y, 12% of budgetWorld Central Kitchen Inc: $10,000 over 1y, 0.0% of budgetWorld Wildlife Fund Inc: $1,000 over 1y, 0.0% of budgetWikimedia Foundation Inc: $520 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 19.

Compare Marvin M Tenberg Charitable Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Marvin M Tenberg Charitable Foundation?

Find your warmest path to Marvin M Tenberg Charitable Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About Marvin M Tenberg Charitable Foundation

How much does Marvin M Tenberg Charitable Foundation give?
Marvin M Tenberg Charitable Foundation reported 9 grants totaling $167,662 in its FY2025 IRS filing. It funded between 6 and 12 organizations a year over FY2020 to FY2024.
What does Marvin M Tenberg Charitable Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Animals (52%), Health (11%), Food & Nutrition (11%).
Who are Marvin M Tenberg Charitable Foundation's largest grantees?
By total granted over FY2020 to FY2025: Humane Society of Tampa Bay Inc ($240k), International Fund for Animal Welfare Inc ($190k), Feeding America Tampa Bay Inc ($120k).
Does Marvin M Tenberg Charitable Foundation fund new organizations?
In FY2024, 50% of the organizations it funded were first-time grantees.
Does Marvin M Tenberg Charitable Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Where is Marvin M Tenberg Charitable Foundation based?
Marvin M Tenberg Charitable 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 32 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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