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Florida · Private foundation

Sanborn Family 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.

$455k
Granted FY2025(still arriving)
41
Grants FY2025
27
Organizations funded FY2024
4%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$100,000
Organizations funded a year
12 to 27
FY2020 to FY2024
States reached, FY2025
7
Total assets, FY2025
$4.1M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 4% of the organizations Sanborn Family 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; $2k 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
Public BenefitPhilanthropyEnvironmentHuman ServicesHealthRecreation & SportsOther
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 arriving40$445k43%
FY202427$402k4%
FY202327$347k70%
FY202212$405k25%
FY202118$430k22%
FY202023$431kn/a
84% classified

What it funded, over time

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

Education$1.3MArts & Culture$277kPublic Benefit$135kReligion$129kPhilanthropy$100kEnvironment$85kYouth Development$85kHuman Services$45kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
WI
MI
NY
MA
OH
CA
FL

Top grantees

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

GranteeTotal grantedYearsShare of their budget
Chicago Jesuit Academy$690,0006n/a
Illinois Policy Institute$115,00042%
Steppenwolf Theatre Company$100,00020%
Hobe Sound Community Chest Inc$80,00041%
Big Shoulders Fund$75,00030%
Josephinum Academy$60,0006n/a
Barnstable Land Trust Inc$50,00041%
Writers Theatre Inc$30,00020%
Our Lady of Tepeyac School$30,0003n/a
The Everglades Foundation Inc$20,00010%
Show all 30 grantees
All grantees of Sanborn Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Chicago Jesuit Academy$690,0006n/a
Illinois Policy Institute$115,00042%
Steppenwolf Theatre Company$100,00020%
Hobe Sound Community Chest Inc$80,00041%
Big Shoulders Fund$75,00030%
Josephinum Academy$60,0006n/a
Barnstable Land Trust Inc$50,00041%
Writers Theatre Inc$30,00020%
Our Lady of Tepeyac School$30,0003n/a
The Everglades Foundation Inc$20,00010%
Solace Friends Inc$15,00031%
Jupiter Medical Center Inc$15,00030%
Molly's House Inc$10,00011%
Ravinia Festival Association$10,00020%
Manhattan Institute for Policy Research Inc$10,0001n/a
Chicago Horticultural Society$10,00020%
Boxer Rebound Inc$10,00025%
Indian River State College$10,0001n/a
Wirepoints Corp$10,00022%
Hyannis Yacht Club Foundation Inc$9,00031%
Barnstable Comedy Club Inc$6,00032%
The Sturgis Library$6,00030%
Tales of Cape Cod Inc$5,00017%
Palm Beach Dramaworks Inc$5,00010%
Northlight Theatre Inc$5,00010%
Their Lives Matter$5,0001n/a
The Art Institute of Chicago$5,00010%
Reading Power Inc$5,00010%
Hobe Sound Nature Center Inc$5,00011%
Museum of Contemporary Art$1,00010%

What it could do for these grantees

Plus 37 recipients with no EIN on record ($1.1M), not named here.

Where it is load-bearing

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetIllinois Policy Institute: $115,000 over 4y, 1.9% of budgetSteppenwolf Theatre Company: $100,000 over 2y, 0.5% of budgetHobe Sound Community Chest Inc: $80,000 over 4y, 0.7% of budgetBig Shoulders Fund: $75,000 over 3y, 0.1% of budgetBarnstable Land Trust Inc: $50,000 over 4y, 0.8% of budgetWriters Theatre Inc: $30,000 over 2y, 0.3% of budgetThe Everglades Foundation Inc: $20,000 over 1y, 0.1% of budgetSolace Friends Inc: $15,000 over 3y, 0.8% of budgetJupiter Medical Center Inc: $15,000 over 3y, 0.0% of budgetMolly's House Inc: $10,000 over 1y, 0.9% of budgetRavinia Festival Association: $10,000 over 2y, 0.0% of budgetChicago Horticultural Society: $10,000 over 2y, 0.0% of budgetBoxer Rebound Inc: $10,000 over 2y, 4.7% of budgetWirepoints Corp: $10,000 over 2y, 1.7% of budgetHyannis Yacht Club Foundation Inc: $9,000 over 3y, 0.5% of budgetBarnstable Comedy Club Inc: $6,000 over 3y, 2.2% of budgetThe Sturgis Library: $6,000 over 3y, 0.3% of budgetTales of Cape Cod Inc: $5,000 over 1y, 6.9% of budgetPalm Beach Dramaworks Inc: $5,000 over 1y, 0.1% of budgetNorthlight Theatre Inc: $5,000 over 1y, 0.1% of budgetThe Art Institute of Chicago: $5,000 over 1y, 0.0% of budgetReading Power Inc: $5,000 over 1y, 0.5% of budgetHobe Sound Nature Center Inc: $5,000 over 1y, 0.7% of budgetMuseum of Contemporary Art: $1,000 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 24.

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 Chicago Community TrustIL12.6× affinity5 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Chicago Community Trust · National Philanthropic Trust · Vanguard Charitable Endowment Program · American Endowment Foundation · 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 Sanborn Family Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Sanborn Family Foundation?

Find your warmest path to Sanborn 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 Sanborn Family Foundation

How much does Sanborn Family Foundation give?
Sanborn Family Foundation reported 41 grants totaling $455,000 in its FY2025 IRS filing. It funded between 12 and 27 organizations a year over FY2020 to FY2024.
What does Sanborn Family Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Education (53%), Arts & Culture (11%), Public Benefit (5%).
Who are Sanborn Family Foundation's largest grantees?
By total granted over FY2020 to FY2025: Chicago Jesuit Academy ($690k), Illinois Policy Institute ($115k), Steppenwolf Theatre Company ($100k).
Does Sanborn Family Foundation fund new organizations?
In FY2024, 4% of the organizations it funded were first-time grantees.
Does Sanborn Family 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 Sanborn Family Foundation?
Its strongest co-funders, measured against what their size predicts, include The Chicago Community Trust, National Philanthropic Trust, Vanguard Charitable Endowment Program.
Where is Sanborn Family Foundation based?
Sanborn Family 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 69 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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