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Ohio · Private foundation

Leighton a Rosenthal Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$195k
Granted FY2025(still arriving)
10
Grants FY2025
9
Organizations funded FY2024
22%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$15,000
Largest grant, FY2025
$50,000
Organizations funded a year
5 to 13
FY2018 to FY2024
States reached, FY2025
6
Total assets, FY2025
$714k
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 22% of the organizations Leighton a Rosenthal Family Foundation funded were first-time grantees, receiving 11% of its grant dollars.

New vs renewed · share of each year

In FY2024, 89% of grant dollars renewed an existing relationship; $15k 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
EducationArts & CulturePhilanthropyAnimalsHealthOther
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 arriving10$195k20%
FY20249$135k22%
FY20239$158k22%
FY20229$135k11%
FY202113$171k54%
FY20208$123k50%
FY20197$85k43%
FY20185$151k20%
98% 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$485kEducation$475kPhilanthropy$266kReligion$161kHealth$106kAnimals$40kHuman Services$33kRecreation & Sports$10kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

NY
MA
OH
RI
CA
CO
AZ
TN
DC
FL

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
Hathaway Brown School$300,00060%
Park Synagogue$161,4673n/a
The Musical Arts Association$120,00030%
Metropolitan Museum of Art$80,00070%
The Preservation Foundation of Palm Beach Inc$59,70061%
Norton Museum of Art Inc$55,00050%
Glades Academy Inc$50,00050%
Cleveland Museum of Art$50,00010%
Diocese of Southeast Florida Inc$35,0003n/a
Kent Denver Country Day School$25,00010%
Show all 18 grantees
All grantees of Leighton a Rosenthal Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Hathaway Brown School$300,00060%
Park Synagogue$161,4673n/a
The Musical Arts Association$120,00030%
Metropolitan Museum of Art$80,00070%
The Preservation Foundation of Palm Beach Inc$59,70061%
Norton Museum of Art Inc$55,00050%
Glades Academy Inc$50,00050%
Cleveland Museum of Art$50,00010%
Diocese of Southeast Florida Inc$35,0003n/a
Kent Denver Country Day School$25,00010%
The Animal Medical Center$25,00030%
Dana-Farber Cancer Institute Inc$20,66110%
The Frick Collection$20,00020%
Glades Academy Foundation Inc$10,00011%
Brimmer and May School$10,00010%
St Jude Children's Research Hospital Inc$10,00010%
Make-A-Wish Foundation of America$10,00010%
Battier Take Charge Foundation$5,00011%

What it could do for these grantees

Plus 12 recipients with no EIN on record ($412k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Leighton a Rosenthal Family Foundation supplied at peak.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetHathaway Brown School: $300,000 over 6y, 0.2% of budgetThe Musical Arts Association: $120,000 over 3y, 0.1% of budgetMetropolitan Museum of Art: $80,000 over 7y, 0.0% of budgetThe Preservation Foundation of Palm Beach Inc: $59,700 over 6y, 0.5% of budgetNorton Museum of Art Inc: $55,000 over 5y, 0.0% of budgetGlades Academy Inc: $50,000 over 5y, 0.5% of budgetCleveland Museum of Art: $50,000 over 1y, 0.1% of budgetKent Denver Country Day School: $25,000 over 1y, 0.1% of budgetThe Animal Medical Center: $25,000 over 3y, 0.0% of budgetDana-Farber Cancer Institute Inc: $20,661 over 1y, 0.0% of budgetThe Frick Collection: $20,000 over 2y, 0.0% of budgetGlades Academy Foundation Inc: $10,000 over 1y, 1.1% of budgetBrimmer and May School: $10,000 over 1y, 0.0% of budgetSt Jude Children's Research Hospital Inc: $10,000 over 1y, 0.0% of budgetMake-A-Wish Foundation of America: $10,000 over 1y, 0.0% of budgetBattier Take Charge Foundation: $5,000 over 1y, 0.6% 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 16.

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.

National Philanthropic TrustPA10.7× affinity5 shared granteesties to 3 of 3Hover any node to trace its alignments.Compare side by side →

Open a dossier: National Philanthropic Trust · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund

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 Leighton a Rosenthal Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Leighton a Rosenthal Family Foundation?

Find your warmest path to Leighton a Rosenthal Family 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 Leighton a Rosenthal Family Foundation

How much does Leighton a Rosenthal Family Foundation give?
Leighton a Rosenthal Family Foundation reported 10 grants totaling $195,000 in its FY2025 IRS filing. It funded between 5 and 13 organizations a year over FY2018 to FY2024.
What does Leighton a Rosenthal Family Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (30%), Education (29%), Philanthropy (16%).
Who are Leighton a Rosenthal Family Foundation's largest grantees?
By total granted over FY2017 to FY2025: Hathaway Brown School ($300k), Park Synagogue ($161k), The Musical Arts Association ($120k).
Does Leighton a Rosenthal Family Foundation fund new organizations?
In FY2024, 22% of the organizations it funded were first-time grantees.
Does Leighton a Rosenthal Family Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Leighton a Rosenthal Family Foundation?
Its strongest co-funders, measured against what their size predicts, include National Philanthropic Trust, Vanguard Charitable Endowment Program, Donor Advised Charitable Giving Inc.
Where is Leighton a Rosenthal Family Foundation based?
Leighton a Rosenthal Family Foundation is based in OH.

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 31 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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