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Florida · Private foundation

The Fortunatus 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.

$203k
Granted FY2025(still arriving)
24
Grants FY2025
16
Organizations funded FY2024
Read the full brief
Median grant, FY2025
$5,000
Largest grant, FY2025
$40,000
States reached, FY2025
7
Total assets, FY2025
$20k
Applications
Preselected organizations only
Per its most recent filing; check its own site
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2024 to 2025.

Arts & Culture$95kYouth Development$55kEnvironment$51kHealth$49kInternational$45kEducation$21kHuman Services$8kAnimals$5kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
MT
NY
MA
RI
VA
TN
DC
FL

Top grantees

Largest recipients by total granted, FY2024 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 26 grantees

What it could do for these grantees

Plus 4 recipients with no EIN on record ($36k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Fortunatus Foundation supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBoys & Girls Club of Martin County: $55,000 over 2y, 0.1% of budgetOld Dartmouth Historical Society: $51,210 over 2y, 0.1% of budgetAmericans for Children of the Middle East: $40,000 over 2y, 5.3% of budgetMarion Art Center Inc: $38,500 over 2y, 4.5% of budgetBuzzards Bay Coalition: $22,500 over 2y, 0.1% of budgetAlexander Twilight Academy Inc: $15,000 over 1y, 0.4% of budgetThe Everglades Foundation Inc: $12,500 over 2y, 0.0% of budgetThe Marion Institute Inc: $10,600 over 1y, 0.5% of budgetSippican Lands Trust Inc: $10,000 over 2y, 1.9% of budgetHobe Sound Community Chest Inc: $8,000 over 2y, 0.2% of budgetOur Sisters School: $5,000 over 1y, 0.2% of budgetRare: $5,000 over 1y, 0.0% of budgetVeterinary Initiative for Endangered Wildlife Inc: $5,000 over 1y, 0.7% of budgetBiological Medicine Institute: $5,000 over 1y, 0.3% of budgetInternational Rescue Committee INC: $5,000 over 1y, 0.0% of budgetThe Society of the Four Arts Inc: $2,700 over 1y, 0.0% of budgetSouthcoast Health System Inc: $2,000 over 1y, 0.0% of budgetCentral Park Conservancy Inc: $2,000 over 2y, 0.0% of budgetSt Jude Children's Research Hospital Inc: $1,500 over 2y, 0.0% of budgetNew Bedford Symphony Orchestra Association Inc: $1,000 over 1y, 0.0% of budgetJupiter Island Arts Council Inc: $1,000 over 1y, 0.1% of budgetJupiter Island Garden Clubinc: $500 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 22.

Nonprofits that may fit its grantmaking

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 Croll FoundationMA15.7× affinity5 shared granteesties to 4 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Croll Foundation · Legatus Foundation · Laura M and Peter T Grauer Foundation · Rubenstein Family Trust · Donald Grant & Ann Martin Calder Foundat · St Clair Charitable Trust · Hugh and Patricia Okane Foundation Co Hugh Okane · The Patton Charitable Foundation · CMB Foundation · The Ludes Family Foundation · Willow Creek Charitable Foundation U/A/D 01/11/2002 · Colket Family 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 Fortunatus Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to The Fortunatus Foundation?

Find your warmest path to The Fortunatus 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 The Fortunatus Foundation

How much does The Fortunatus Foundation give?
The Fortunatus Foundation reported 24 grants totaling $203,185 in its FY2025 IRS filing.
What does The Fortunatus Foundation fund?
By grant dollars over FY2024 to FY2025, its largest causes are Arts & Culture (28%), Youth Development (16%), Environment (15%).
Who are The Fortunatus Foundation's largest grantees?
By total granted over FY2024 to FY2025: Boys & Girls Club of Martin County ($55k), Old Dartmouth Historical Society ($51k), Americans for Children of the Middle East ($40k).
Does The Fortunatus 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 Fortunatus Foundation?
Its strongest co-funders, measured against what their size predicts, include The Croll Foundation, Legatus Foundation, Laura M and Peter T Grauer Foundation.
Where is The Fortunatus Foundation based?
The Fortunatus 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 30 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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