How much does Winiarski Family Foundation give?

Winiarski Family Foundation reported 3 grants totaling $43,067,701 in its FY2025 IRS filing. It funded between 6 and 47 organizations a year over FY2018 to FY2024.

What does Winiarski Family Foundation fund?

By grant dollars over FY2017 to FY2025, its largest causes are Education (81%), Health (9%), Arts & Culture (6%).

Who are Winiarski Family Foundation's largest grantees?

By total granted over FY2017 to FY2025: St Johns College in Santa Fe ($50M), Queen of the Valley Medical Center Foundation ($5.7M), Smithsonian Institution ($3.4M).

Does Winiarski Family Foundation fund new organizations?

In FY2024, 17% of the organizations it funded were first-time grantees.

Does Winiarski 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 Winiarski Family Foundation?

Its strongest co-funders, measured against what their size predicts, include Community Foundation of the Napa Valley, Peter a & Vernice H Gasser Foundation, McNabb Foundation.

Where is Winiarski Family Foundation based?

Winiarski Family Foundation is based in CA.

Winiarski Family Foundation

Winiarski Family Foundation at a glance

· Private foundation

Winiarski 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.

$43M

Granted FY2025still arriving

Grants FY2025still arriving

States reached

$38M

Largest

01What it funds

0199% classified

What it funded, over time

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

Education$54MHealth$6.2MArts & Culture$3.8MHuman Services$723kEnvironment$550kPublic Benefit$448kFood & Nutrition$325kReligion$227kOther$0

02FY2025 · 3 grants

Where the money goes

Grants by size, and the largest recipients.

$3,121,614

Median grant

States reached

$1.7M

Total assets

Largest grants
Recipient	Amount
ST JOHNS COLLEGE	$37,500,000
SMITHSONIAN INSTITUTION	$3,121,614
UC DAVIS FOUNDATION	$2,446,087

02The need

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY17–24, $406k) land where the poverty rate runs at 9%, against an area that typically sits at 11%. 2% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

grant to an above-average-need area below average· circle size = grant amount

How this is measured

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

How this is measured

US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.

03Its grantees

repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

100%of every dollar goes to organizations it has funded before.

$66M · 55 repeat orgs$321k to everyone else

Grantees it renews have grown median revenue +66% since the first grant, against +27% for those funded once.

55 repeat relationships: 3 still active in FY2025, 52 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

Total granted

$66M

$321k

Median revenue growth · since first grant

+66%

+27%

Still filing today

65%

64%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

RenewedFirst-time

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

EducationHealthArts & CultureHuman ServicesEnvironmentFood & NutritionOther

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.

Backed again, and grew

SMITHSONIAN INSTITUTION
9× · 2017–2025 · $3.4M · revenue +31%
TU
THE UC DAVIS FOUNDATION
6× · 2017–2025 · $2.8M · revenue +66%
University of Chicago
6× · 2017–2022 · $390k · revenue +56%

Funded once

TP
THE PATHWAY HOME INC
one grant, 2017 · $100k · revenue -100%
INTERNATIONAL DOCUMENTARY FOUNDATION INC
one grant, 2017 · $45k · revenue -21%
AN
American National Red Cross & Its Constituent Chapters and Branches
one grant, 2022 · $25k · revenue +23%

How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

California College of the Arts

California college of the arts educates students to shape culture and society through the practice and critical study of art, architecture, design, and writing. benefitting from its san francisco bay area location, the college prepares…

Education

Northern California Institute for Research and Education Inc

To improve the health and well-being of veterans and the general public by supporting a world-class biomedical research program conducted by ucsf faculty at the san francisco veterans affairs health care system.

Health

United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—

Dominican University of California

Our institutional mission is to educate and prepare students to be ethical leaders and socially responsible global citizens who incorporate the dominican values of study, reflection, community and service into their lives.

Education

Naval Postgraduate School Foundation Inc

Our mission is to support the naval postgraduate school by providing funding and programmatic support for education, research, technology development, institutional initiatives, and community programs that advance national security and…

Education

Marin Academy

Marin academy asks every individual to think, question, and create in an environment of encouragement and compassion, and challenges each person to accept the responsibilities posed by education in a democratic society.

Education

Npr Foundation

The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…

—

Uc Santa Barbara Foundation

The uc santa barbara foundation actively works to further the goals of the university of california, santa barbara. the foundation seeks to maintain and nurture the university's quality and distinction. on behalf of the campus, the…

Education

National University

To deliver accessible world-class student experiences by providing quality programs and services that ensure student success through meaningful learning. to be an inclusive and innovative university serving life-long learners who…

Education

The American Institute of Architects California

The AIA California, in collaboration with local components, is the voice of the architectural profession.

—

California Dental Association

The california dental association is committed to the success of our members in service to their patients and the public.

Community Improvement

California Dental Association Foundation

The foundation's mission is to improve the oral health of all californians by supporting the dental profession and its efforts to meet community needs.

Science & Tech

How this is measured

The grantee most central to the portfolio’s shape is The Napa Valley College Foundation; the most unlike its peers is Bayanihan Clinic. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

04the grantee network

51 grantees tracked through their own filings, 2017–2026.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 51 of the 77 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

Load-bearing (≥25% of a budget)

Early backer (in before they grew)

50/51

Grantees still filing

40/51

Grew since first funded

Where the money sits, by cause and then by grantee

Other$52,088,850Health$6,235,500Arts & Culture$3,668,614Education$3,650,702Environment$512,500Human Services$405,900Public Benefit$161,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

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.

Community Foundation of the Napa ValleyCA40.4× affinity17 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation of the Napa Valley · Peter a & Vernice H Gasser Foundation · McNabb Foundation · Craig and Kathryn Hall Foundation · Napa Valley Vintners Healthy Community Fund · Syar Foundation Susan L Syar Director · Kaiser Foundation Hospitals · The Vollmer Family Foundation · Queen of the Valley Medical Center · Community Projects Inc · The David Butler Family Foundation · The Woods Charitable 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.

How much its grantees rely on government

Each dot is one organization Winiarski Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Winiarski Family Foundation. Bigger dots raise more.

2024

’20’21’22’23’24’25

no gov moneyreceives it· size = income

1get no government money at all

13report government grants on their 990 we could not trace to a source (not plotted)

0rely on government for over half their income

⤢ axis zoomed · 0–25%

typical government reliance, FY20–25

How this is measured

Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Winiarski Family Foundation?

Find your warmest path to Winiarski 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.

Play a game based on Winiarski Family’s filings →

More from the funding graph

The unnamed billions

grants reported with no recipient in the public record

The regranting layer

51% of grant dollars land in the regranting layer

The DAF merry-go-round

$9.7B circulates between donor-advised funds

The endowment market

who holds foundation money, and what just moved

The camps

funders cluster by geography, not ideology

By state

where grant money is based, and what stays home