The Winiarski Family Foundation concentrates very large, targeted gifts to a small number of institutions, primarily supporting higher education and regional healthcare. Their giving is dominated by a multi‑million dollar commitment to St. John’s College and substantial, repeat support for Queen of the Valley Medical Center in Napa, indicating a preference for institutional, unrestricted/financial support rather than many small program grants. The pattern suggests philanthropic priorities of sustaining elite liberal arts education and strengthening local hospital services in the Napa Valley area.
Highly concentrated: very few, very large grants to a small set of institutional grantees with repeat support for a local medical center; favors one-off or multi‑million commitments rather than broad, distributed giving.
The Winiarski Family Foundation’s largest recent grant was a $12,500,000 gift to St Johns College for financial support, far larger than its other recent awards and a clear marker of its preference for major institutional support. Across the recent record, the foundation also shows repeat commitment to Queen of the Valley Medical Center Fndn in Napa, including a $3,460,500 grant for the Barbara Winiarski Stroke and Diagnostic Center and another $1,579,500 for financial support of the organization. That mix points to two consistent priorities: higher education and healthcare, with especially strong ties to Napa Valley institutions. The foundation’s giving is not spread thinly across many small awards; it concentrates on established organizations that can absorb large gifts and use them for operating support, capital work, or named facilities. Recent awards also reach beyond those two anchors to colleges, hospitals, cultural institutions, and local civic organizations, but the size and repetition of the top grants show a pattern of deliberate, relationship-driven philanthropy centered on a small set of recipients.
Higher education appears in several forms. In 2024, the foundation gave $61,614 to Uc Davis Foundation for financial support, and in 2023 it gave $60,000 to University of Chicago for the same purpose. It also supported Napa Valley College Foundation with $25,000 in both 2023 and 2024, suggesting sustained backing for local postsecondary institutions. Healthcare is another clear area: Queen of the Valley Medical Center Fndn received $90,000 in 2023 for financial support, alongside the larger gifts tied to stroke and diagnostic services. Community services also show up in smaller grants, including $25,000 to American Red Cross and $20,000 to Cope Family Center, both in Napa-area work. The foundation’s portfolio also includes support for land conservation and public access through Land Trust of Napa County and Napa City-county Public Library.
Typical grants cluster around a relatively narrow band: the p25 is $10,000, the median is $20,000, and the p75 is $25,000. That pattern sits alongside a much larger outlier for St Johns College, which shows that the foundation uses both modest institutional gifts and very large anchor commitments. The recent record also shows repeat support for several recipients across multiple years, including Queen of the Valley Medical Center Fndn, Uc Davis Foundation, Smithsonian Institution, Save Napa Valley Foundation, Veterans Home of CA, Claremont Institute, and Napa Valley College Foundation. The foundation is not an individual-giving entity and does not make program-related investments.
$43.1M
$1.7M
$43M
$43.1M
Most grants fall between $10K and $25K, with a median of $20K.
25th Percentile
$10K
Median
$20K
75th Percentile
$25K
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Notable grantees: ST JOHNS COLLEGE, QUEEN OF THE VALLEY MEDICAL CENTER FOUNDATION (repeat grantee)
The foundation’s grants are heavily California-centered, with 58% of grants going to recipients in the HQ state. Napa is the most common city in the recent record, appearing with Queen of the Valley Medical Center Fndn, Uc Davis Foundation, News, Aldea, Napa Valley College Foundation, Land Trust of Napa County, Napa City-county Public Library, and Cope Family Center. Other California recipients include Davis, Yountville, Claremont, St Helena, San Francisco, and Angwin. Outside California, the record includes Santa Fe, Chicago, Princeton, New York, and Washington, DC. All recent grants in the data go to US recipients.
Recent grants show support for higher education, healthcare, and local community institutions. Examples include St Johns College for financial support, Queen of the Valley Medical Center Fndn for stroke and diagnostic services, and Napa Valley College Foundation, Land Trust of Napa County, and Napa City-county Public Library for financial support.
The typical grant size is $10,000 at the 25th percentile, $20,000 at the median, and $25,000 at the 75th percentile. Recent giving also includes one much larger commitment of $12,500,000, which shows the foundation sometimes makes major anchor grants in addition to its standard range.
Yes. Several recipients appear in multiple years, including Queen of the Valley Medical Center Fndn, Uc Davis Foundation, Smithsonian Institution, Save Napa Valley Foundation, Veterans Home of CA, Claremont Institute, and Napa Valley College Foundation. That pattern suggests ongoing relationships rather than one-time awards only.
California receives the largest share of grants by volume, with 58% of grants going to recipients in the HQ state. Napa is the most frequent recipient city in the recent list, while the foundation also gives to recipients in Davis, Yountville, Claremont, St Helena, San Francisco, and Angwin.
Healthcare giving centers on Queen of the Valley Medical Center Fndn in Napa. The foundation gave $3,460,500 in 2024 for the Barbara Winiarski Stroke and Diagnostic Center, $1,579,500 in 2025 for financial support, and $90,000 in 2023 for financial support. The topic labels also point to stroke care, neurological diagnostics, prevention, and rehabilitation.
2026
Source: IRS Form 990-PF, fiscal year 2026.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| ST JOHNS COLLEGE | SANTA FE, NM | $37,500,000 | 2026 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| SMITHSONIAN INSTITUTION | WASHINGTON, DC | $3,121,614 | 2026 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| UC DAVIS FOUNDATION | DAVIS, CA | $2,446,087 | 2026 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| ST JOHNS COLLEGE | SANTA FE, NM | $12,500,000 | 2025 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| QUEEN OF THE VALLEY MEDICAL CENTER FNDN | NAPA, CA | $1,579,500 | 2025 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| UC DAVIS FOUNDATION | DAVIS, CA | $53,000 | 2025 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| SMITHSONIAN INSTITUTION | WASHINGTON DC, DC | $50,000 | 2025 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| COLORADO MESA UNIVERSITY FOUNDATION | GRAND JUNCTION, CO | $15,420 | 2025 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| EDWARD CHARLES FOUNDATION | BEVERLY HILLS, CA | $8,900 | 2025 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| QUEEN OF THE VALLEY MEDICAL CENTER FNDN | NAPA, CA | $3,460,500 | 2024 | BARBARA WINIARSKI STROKE AND DIAGNOSTIC CENTER |
| UC DAVIS FOUNDATION | DAVIS, CA | $61,614 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| SAVE NAPA VALLEY FOUNDATION | ANGWIN, CA | $50,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NEWS | NAPA, CA | $35,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| VETERANS HOME OF CA | YOUNTVILLE, CA | $30,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| CLAREMONT INSTITUTE | CLAREMONT, CA | $30,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NAPA VALLEY COLLEGE FOUNDATION | NAPA, CA | $25,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| STATUE OF LIBERTY-ELLIS ISLAND FOUNDATION | NEW YORK, NY | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| ST JOHNS COLLEGE | SANTA FE, NM | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| KOLBE ACADEMY & TRINITY PREP | NAPA, CA | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| ALDEA | NAPA, CA | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| MARTHA'S VINEYARD FISHERMEN PRES TRUST | MENEMSHA, MA | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NATIONAL ASSOCIATION OF SCHOLARS | PRINCETON, NJ | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| COPE FAMILY CENTER | NAPA, CA | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| CHESAPEAKE BAY FOUNDATION | ANNAPOLIS, MD | $20,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NAPA VALLEY WINE LIBRARY ASSOCIATION | ST HELENA, CA | $15,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| MANHATTAN INSTITUTE | NEW YORK, NY | $15,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| ANIMAL REFUGE LEAGUE OF GREATER PORTLAND | WESTBROOK, ME | $15,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| JUDICAL WATCH INC | WASHINGTON, DC | $10,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NATIONAL MUSEUM OF AMERICAN HISTORY | WASHINGTON, DC | $10,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| DAMIAN MALDONADO MEMORIAL FOUNDATION | ST HELENA, CA | $10,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| LANE TECH ALUMNI ASSOCIATION | CHICAGO, IL | $10,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| WILDLIFE RESCUE CENTER OF NAPA COUNTY | NAPA, CA | $10,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| COLORADO MESA UNIVERSITY FOUNDATION | GRAND JUNCTION, CO | $7,400 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| ST HELENA ROTARY FOUNDATION | ST HELENA, CA | $5,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| YOUNTVILLE FRIENDS OF THE LIBRARY | YOUNTVILLE, CA | $5,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| POLISH ARTS AND CULTURE FOUNDATION | OAKLAND, CA | $5,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| FRIENDS OF THE SMITHSONIAN | WASHINGTON, DC | $1,000 | 2024 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| ALL SAINTS CATHEDRAL PARISH | CHICAGO, IL | $101,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| QUEEN OF THE VALLEY MEDICAL CENTER FNDN | NAPA, CA | $90,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| UNIVERSITY OF CHICAGO | CHICAGO, IL | $60,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| SAVE NAPA VALLEY FOUNDATION | ANGWIN, CA | $50,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| SMITHSONIAN INSTITUTION | WASHINGTON, DC | $50,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NEWS | NAPA, CA | $35,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| CLAREMONT INSTITUTE | CLAREMONT, CA | $30,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| VETERANS HOME OF CA | YOUNTVILLE, CA | $30,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NAPA VALLEY COLLEGE FOUNDATION | NAPA, CA | $25,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| NAPA CITY-COUNTY PUBLIC LIBRARY | NAPA, CA | $25,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| AMERICAN RED CROSS | ST HELENA, CA | $25,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| LAND TRUST OF NAPA COUNTY | NAPA, CA | $25,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
| MARTHA'S VINEYARD FISHERMEN PRES TRUST | MENEMSHA, MA | $20,000 | 2023 | FINANCIAL SUPPORT FOR THE ORGANIZATION |
ST JOHNS COLLEGE
$37,500,000FINANCIAL SUPPORT FOR THE ORGANIZATION
SMITHSONIAN INSTITUTION
$3,121,614FINANCIAL SUPPORT FOR THE ORGANIZATION
UC DAVIS FOUNDATION
$2,446,087FINANCIAL SUPPORT FOR THE ORGANIZATION
ST JOHNS COLLEGE
$12,500,000FINANCIAL SUPPORT FOR THE ORGANIZATION
UC DAVIS FOUNDATION
$53,000FINANCIAL SUPPORT FOR THE ORGANIZATION
SMITHSONIAN INSTITUTION
$50,000FINANCIAL SUPPORT FOR THE ORGANIZATION
FINANCIAL SUPPORT FOR THE ORGANIZATION
QUEEN OF THE VALLEY MEDICAL CENTER FNDN
$3,460,500BARBARA WINIARSKI STROKE AND DIAGNOSTIC CENTER
SAVE NAPA VALLEY FOUNDATION
$50,000FINANCIAL SUPPORT FOR THE ORGANIZATION
VETERANS HOME OF CA
$30,000FINANCIAL SUPPORT FOR THE ORGANIZATION
STATUE OF LIBERTY-ELLIS ISLAND FOUNDATION
$20,000FINANCIAL SUPPORT FOR THE ORGANIZATION
ST JOHNS COLLEGE
$20,000FINANCIAL SUPPORT FOR THE ORGANIZATION
KOLBE ACADEMY & TRINITY PREP
$20,000FINANCIAL SUPPORT FOR THE ORGANIZATION
MARTHA'S VINEYARD FISHERMEN PRES TRUST
$20,000FINANCIAL SUPPORT FOR THE ORGANIZATION
NATIONAL ASSOCIATION OF SCHOLARS
$20,000FINANCIAL SUPPORT FOR THE ORGANIZATION
NAPA VALLEY WINE LIBRARY ASSOCIATION
$15,000FINANCIAL SUPPORT FOR THE ORGANIZATION
ANIMAL REFUGE LEAGUE OF GREATER PORTLAND
$15,000FINANCIAL SUPPORT FOR THE ORGANIZATION
NATIONAL MUSEUM OF AMERICAN HISTORY
$10,000FINANCIAL SUPPORT FOR THE ORGANIZATION
DAMIAN MALDONADO MEMORIAL FOUNDATION
$10,000FINANCIAL SUPPORT FOR THE ORGANIZATION
LANE TECH ALUMNI ASSOCIATION
$10,000FINANCIAL SUPPORT FOR THE ORGANIZATION
WILDLIFE RESCUE CENTER OF NAPA COUNTY
$10,000FINANCIAL SUPPORT FOR THE ORGANIZATION
FINANCIAL SUPPORT FOR THE ORGANIZATION
ST HELENA ROTARY FOUNDATION
$5,000FINANCIAL SUPPORT FOR THE ORGANIZATION
YOUNTVILLE FRIENDS OF THE LIBRARY
$5,000FINANCIAL SUPPORT FOR THE ORGANIZATION
POLISH ARTS AND CULTURE FOUNDATION
$5,000FINANCIAL SUPPORT FOR THE ORGANIZATION
ALL SAINTS CATHEDRAL PARISH
$101,000FINANCIAL SUPPORT FOR THE ORGANIZATION
SAVE NAPA VALLEY FOUNDATION
$50,000FINANCIAL SUPPORT FOR THE ORGANIZATION
VETERANS HOME OF CA
$30,000FINANCIAL SUPPORT FOR THE ORGANIZATION
NAPA CITY-COUNTY PUBLIC LIBRARY
$25,000FINANCIAL SUPPORT FOR THE ORGANIZATION
AMERICAN RED CROSS
$25,000FINANCIAL SUPPORT FOR THE ORGANIZATION
MARTHA'S VINEYARD FISHERMEN PRES TRUST
$20,000FINANCIAL SUPPORT FOR THE ORGANIZATION