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Florida · Private foundation

Leonard L and Bertha U Abess 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.

$342k
Granted FY2025(still arriving)
3
Grants FY2025
4
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$322,000
Organizations funded a year
4 to 16
FY2018 to FY2024
States reached, FY2025
2
Total assets, FY2025
$4.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 0% of the organizations Leonard L and Bertha U Abess Foundation funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 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
Arts & CultureHuman ServicesEducationHealthCivil RightsOther
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 arriving3$342k0%
FY20244$293k0%
FY202310$305k10%
FY202213$319k23%
FY202111$244k0%
FY202011$176k9%
FY201916$208k31%
FY201813$203k31%
90% classified

What it funded, over time

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

Health$886kEmployment$333kCivil Rights$246kEnvironment$183kPhilanthropy$178kArts & Culture$176kReligion$157kFood & Nutrition$108kOther$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
Mount Sinai Medical Center Foundation$882,00060%
Goodwill Industries of South Florida Inc$333,00070%
Anti-Defamation League$245,00070%
New York Botanical Garden$150,10040%
Temple Israel of Greater Miami$66,5106n/a
University of Miami$52,30030%
Storm King Art Center$50,00011%
Vizcaya Museum and Gardens Trust Inc$50,00050%
New York Academy of Art$25,00010%
Big Brothers Big Sisters of Miami Inc$10,00010%
Show all 17 grantees
All grantees of Leonard L and Bertha U Abess Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Mount Sinai Medical Center Foundation$882,00060%
Goodwill Industries of South Florida Inc$333,00070%
Anti-Defamation League$245,00070%
New York Botanical Garden$150,10040%
Temple Israel of Greater Miami$66,5106n/a
University of Miami$52,30030%
Storm King Art Center$50,00011%
Vizcaya Museum and Gardens Trust Inc$50,00050%
New York Academy of Art$25,00010%
Big Brothers Big Sisters of Miami Inc$10,00010%
Young Musicians Unite Inc$5,50020%
Dolphins Cycling Challenge Inc$2,21040%
Healthnetwork Foundation Fka Health Net Foundation Inc$2,00010%
Belev Echad Inc$1,80010%
The Frederick Gunn School Inc$1,70040%
McCj Inc$1,00010%
Children's Bereavement Center Inc$25010%

Plus 10 recipients with no EIN on record ($418k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Leonard L and Bertha U Abess Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMount Sinai Medical Center Foundation: $882,000 over 6y, 0.3% of budgetGoodwill Industries of South Florida Inc: $333,000 over 7y, 0.0% of budgetAnti-Defamation League: $245,000 over 7y, 0.1% of budgetNew York Botanical Garden: $150,100 over 4y, 0.1% of budgetUniversity of Miami: $52,300 over 3y, 0.0% of budgetStorm King Art Center: $50,000 over 1y, 0.6% of budgetVizcaya Museum and Gardens Trust Inc: $50,000 over 5y, 0.3% of budgetNew York Academy of Art: $25,000 over 1y, 0.3% of budgetBig Brothers Big Sisters of Miami Inc: $10,000 over 1y, 0.2% of budgetYoung Musicians Unite Inc: $5,500 over 2y, 0.2% of budgetDolphins Cycling Challenge Inc: $2,210 over 4y, 0.0% of budgetHealthnetwork Foundation Fka Health Net Foundation Inc: $2,000 over 1y, 0.0% of budgetBelev Echad Inc: $1,800 over 1y, 0.1% of budgetThe Frederick Gunn School Inc: $1,700 over 4y, 0.0% of budgetMcCj Inc: $1,000 over 1y, 0.3% of budgetChildren's Bereavement Center Inc: $250 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 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.

The Jayne and Leonard Abess Foundation Inc C/O Thinklab VenturesFL17.9× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Jayne and Leonard Abess Foundation Inc C/O Thinklab Ventures · Mightycause Charitable Foundation · United Way Miami Inc · The Miami Foundation Inc · The Kirk Foundation · Coral Gables Community Foundation Inc · The Batchelor Foundation Inc · Greater Miami Jewish Federation Inc · Jewish Communal Fund · Natl Christian Charitable Fdn Inc · The Blackbaud Giving Fund · Morgan Stanley Global Impact Funding Trust Inc

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 Leonard L and Bertha U Abess Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Leonard L and Bertha U Abess Foundation?

Find your warmest path to Leonard L and Bertha U Abess 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 Leonard L and Bertha U Abess Foundation

How much does Leonard L and Bertha U Abess Foundation give?
Leonard L and Bertha U Abess Foundation reported 3 grants totaling $342,000 in its FY2025 IRS filing. It funded between 4 and 16 organizations a year over FY2018 to FY2024.
What does Leonard L and Bertha U Abess Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Health (36%), Employment (13%), Civil Rights (10%).
Who are Leonard L and Bertha U Abess Foundation's largest grantees?
By total granted over FY2017 to FY2025: Mount Sinai Medical Center Foundation ($882k), Goodwill Industries of South Florida Inc ($333k), Anti-Defamation League ($245k).
Does Leonard L and Bertha U Abess Foundation fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Does Leonard L and Bertha U Abess 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 Leonard L and Bertha U Abess Foundation?
Its strongest co-funders, measured against what their size predicts, include The Jayne and Leonard Abess Foundation Inc C/O Thinklab Ventures, Mightycause Charitable Foundation, United Way Miami Inc.
Where is Leonard L and Bertha U Abess Foundation based?
Leonard L and Bertha U Abess 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 29 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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