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Windy Bay Foundation at a glance

· Private foundation

Windy Bay 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.

$1.5M
Granted FY2025still arriving
10
Grants FY2025still arriving
4
States reached
$1.0M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0197% classified

What it funded, over time

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

Education$1.9MPhilanthropy$209kHealth$150kRecreation & Sports$100kArts & Culture$50kInternational$34kPublic Safety & Disaster$24kFood & Nutrition$11kOther$0
02FY2025 · 10 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k5 grants · $16k
  • $50k–250k3 grants · $230k
  • $250k+2 grants · $1.3M
$50,000
Median grant
4
States reached
$1.5M
Total assets
Largest grants
RecipientAmount
ST HELENA UNIFIED SCHOOL DISTRICT$1,000,000
ST HELENA UNIFIED SCHOOL DISTRICT$275,262
PAUL ALEXANDER FOUNDATION$100,000
ST HELENA UNIFIED SCHOOL DISTRICT$80,008
BERKLEE$50,000
EYE SURGEONS INTERNATIONAL$5,000
WORLD CENTRAL KITCHEN$3,000
DOCTORS WITHOUT BORDERS$3,000
PLANNED PARETHOOD FEDERATION OF AMERICA$3,000
ON LOK$2,000
02The need
03

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 (FY21–21, $6k) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 9%COMMUNITY ACTION OF NAPA VALLEY: $3k → 9%COMMUNITY ACTION OF NAPA VALLEY: $3k → 9%0%20%40%50%more need →
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.
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.

83%of every dollar goes to organizations it has funded before.
$2.1M · 13 repeat orgs$424k to everyone else

Grantees it renews have grown median revenue +6% since the first grant, against 0% for those funded once.

13 repeat relationships: 4 still active in FY2025, 9 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

13
19

Total granted

$2.1M
$269k

Median revenue growth · since first grant

+6%
0%

Still filing today

62%
37%

New vs renewed · share of each year

In FY2025, 90% of grant dollars renewed an existing relationship; $155k went to new ones.

50%100%’17’18’19’20’21’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’23’24’25
InternationalHealthHuman ServicesArts & CulturePhilanthropyEnvironmentOther
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

  • SH
    St Helena Hospital Foundation
    2× · 2020–2021 · $100k · revenue +38%
  • PLANNED PARENTHOOD FEDERATION OF AMERICA INC
    2× · 2023–2024 · $36k · revenue +8%
  • WORLD CENTRAL KITCHEN INC
    3× · 2023–2025 · $14k · revenue +36%

Funded once

  • SH
    ST HELENA LITTLE LEAGUE
    one grant, 2023 · $100k
  • UB
    UC BERKELEY FOUNDATION
    one grant, 2019 · $100k
  • IG
    Individual grant recipient
    one grant, 2017 · $50k
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.

1
Ucsf Foundation Investment Company

The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.

Education
2
Npr International Operations Inc

Npr international operations, inc. ("nprio") supports the international newsgathering activities of national public radio, inc. through bureaus and offices established locally in foreign countries.

—
3
The Water Research Foundation

The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…

Environment
4
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…

—
5
MRIGlobal

To improve the lives of people through innovative scientific and engineering research.

Science & Tech
6
International Aids Vaccine Initiative Inc

A nonprofit scientific research organization that develops vaccines and antibodies for hiv, tuberculosis, and emerging infectious diseases.

International
7
International Biomedical Research Alliance

Our mission is to invest in and accelerate the development of the most promising future leaders in biomedical research with global impact.

Health
8
National Public Radio Inc

National public radio, inc. ("npr") works collaboratively with member public radio station licensees ("member stations") to create a more informed public, one that is challenged and invigorated by a deeper understanding and appreciation of…

Arts & Culture
9
The Union of Concerned Scientists Inc

The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.

International
10
Us Digital Response

U.s. digital response is a nonprofit, nonpartisan organization that helps governments, nonprofits, and public entities respond quickly to critical public needs. the organization serves the public by leveraging a network of pro bono…

Public Safety & Disaster
11
Partners of the Americas Foundation

To advance the social economic well being of the americas.

International
12
World Resources Institute

Wri is committed to creating change that improves people's lives and ensures the natural world can thrive. (see schedule o)wri's bold vision requires a formula for success we call "count it. change it. scale it.":- count it: our work is…

International
How this is measured
The grantee most central to the portfolio’s shape is Medecins Sans Frontieres Usa Inc; the most unlike its peers is St Helena Hospital Foundation. 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

19 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 19 of the 37 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.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
17/19
Grantees still filing
10/19
Grew since first funded

Where the money sits, by cause and then by grantee

ST HELENA UNIFIED SCHOOL DISTRICT: $1,655,270 · OtherST HELENA UNIFIED SCHOOL DISTRICTPartnership for Haas Preeminence: $200,000 · OtherPartnership for Haas PreeminencePAUL ALEXANDER FOUNDATION: $100,000 · OtherST HELENA LITTLE LEAGUE: $100,000 · OtherUC BERKELEY FOUNDATION: $100,000 · Other+16 more: $120,050 · OtherSt Helena Hospital Foundation: $100,000 · HealthPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $36,000 · HealthEye Surgeons International: $10,000 · Health+1 more: $2,000 · HealthWORLD CENTRAL KITCHEN INC: $13,500 · InternationalMEDECINS SANS FRONTIERES USA INC: $13,500 · InternationalUNITED STATES FUND FOR UNICEF: $10,523 · International+2 more: $1,050 · InternationalFRIENDS OF THE WORLD FOOD PROGRAM INC: $10,500 · Human ServicesAmerican National Red Cross & Its Constituent Chapters and Branches: $10,500 · Human ServicesCOMMUNITY ACTION OF NAPA VALLEY: $6,000 · Human ServicesCRISTOSAL INC: $5,000 · PhilanthropyCOMMUNITY FOUNDATION OF THE NAPA VALLEY: $3,000 · PhilanthropyPEPPERWOOD FOUNDATION: $2,500 · EnvironmentKQED INC: $100 · Arts & Culture
Other$2,275,320Health$148,000International$38,573Human Services$27,000Philanthropy$8,000Environment$2,500Arts & Culture$100

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetPartnership for Haas Preeminence: $200,000 over 2y, 1.3% of budgetSt Helena Hospital Foundation: $100,000 over 2y, 1.5% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $36,000 over 2y, 0.0% of budgetWORLD CENTRAL KITCHEN INC: $13,500 over 3y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC: $13,500 over 3y, 0.0% of budgetUNITED STATES FUND FOR UNICEF: $10,523 over 2y, 0.0% of budgetFRIENDS OF THE WORLD FOOD PROGRAM INC: $10,500 over 2y, 0.0% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $10,500 over 2y, 0.0% of budgetNAPA MEDICAL RESEARCH FOUNDATION: $10,500 over 3y, 0.9% of budgetEye Surgeons International: $10,000 over 2y, 0.4% of budgetCOMMUNITY ACTION OF NAPA VALLEY: $6,000 over 1y, 0.1% of budgetCRISTOSAL INC: $5,000 over 1y, 0.3% of budgetCOMMUNITY FOUNDATION OF THE NAPA VALLEY: $3,000 over 1y, 0.0% of budgetPEPPERWOOD FOUNDATION: $2,500 over 1y, 0.0% of budgetON LOK INC: $2,000 over 1y, 0.0% of budgetWORLDREADERORG: $1,000 over 1y, 0.0% of budgetSUNRISE MOVEMENT: $200 over 1y, 0.0% of budgetKQED INC: $100 over 1y, 0.0% of budgetMercy Ships International: $50 over 1y, 0.0% of budget
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.

Marin Community Found…The Gamble FoundationGs Donor Advised Phil…American Endowment Fo…National Philanthropi…Vanguard Charitable E…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Marin Community FoundationCA14.9× affinity5 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: Marin Community Foundation · The Gamble Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · American Endowment Foundation · National Philanthropic Trust · Vanguard Charitable Endowment Program · 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.

How much its grantees rely on government

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

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    3report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    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.

    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 37 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

    Play a game based on Windy Bay’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