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Arizona · Private foundation

Joseph & May Winston 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.

$106k
Granted FY2025(still arriving)
33
Grants FY2025
36
Organizations funded FY2024
42%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,500
Largest grant, FY2025
$25,000
Organizations funded a year
19 to 39
FY2018 to FY2024
States reached, FY2025
9
Total assets, FY2025
$1.6M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 42% of the organizations Joseph & May Winston Foundation funded were first-time grantees, receiving 30% of its grant dollars.

New vs renewed · share of each year

In FY2024, 70% of grant dollars renewed an existing relationship; $35k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

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

’18’19’20’21’22’23’24
Human ServicesArts & CultureAnimalsFood & NutritionInternationalHealthOther
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 arriving31$106k42%
FY202436$117k42%
FY202339$112k56%
FY202219$72k37%
FY202126$80k46%
FY202028$58k32%
FY201927$61k56%
FY201823$55k39%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Religion$122kHuman Services$94kInternational$68kHousing & Shelter$68kAnimals$67kHealth$57kEducation$28kArts & Culture$28kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
NY
OR
IN
OH
CA
CO
MO
MD
AZ
DC
LA
TX
FL

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 51 grantees
All grantees of Joseph & May Winston Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Valley Beit Midrash$80,00092%
Hand in Hand American Friends of the Center for Jewish-Arab Education in Isra$50,00050%
Prescott Area Shelter Services Inc$42,50082%
The Welcome to America Project$30,20041%
Partners for Pets Humane Society$27,00071%
Gesher Disability Resources Inc$26,50081%
Family Promise - Greater Phoenix$12,03650%
International Institute of Metropolitan St Louis$12,00030%
Merkos Chabad-Lubavitch Organization$8,5006n/a
Foster Your Future$8,00023%
MAZON A Jewish Response to Hunger$6,04040%
Arizona Jewish Historical Society$5,50040%
Open Arms Home for Children Inc$5,00010%
Accel$5,00020%
Foothills Food Bank$4,50030%
Congregation Beth Israel of Phoenix Arizona$4,4004n/a
Kitchen on the Street Inc$4,00020%
Just Strays Inc$4,000495%
Union for Reform Judaism$4,0004n/a
Shelterbox USA Inc$4,00020%
McDowell Sonoran Conservancy$2,75050%
McLindon Family Foundation$2,50012%
The Singletons$2,50010%
Phoenix Chamber Music Society$2,50011%
Treehouse Wildlife Center Inc$2,45030%
Community House$2,00013%
St Louis Area Food Bank Inc$2,00010%
Black Theatre Troupe Inc$2,00020%
Matthew's Crossing$2,00010%
Free Wheelchair Mission$1,75020%
Artist Relief Fund Inc$1,5003n/a
Chabad at Asu Inc$1,5002n/a
Jewish National Fund-Usa Inc$1,50011%
Americares Foundation Inc$1,04110%
Arizona Science Center$1,00010%
Crohn's & Colitis Foundation Inc$1,00010%
Hias Inc$1,00010%
Sierra Club$1,00010%
Dig Deep$1,00014%
Friends of United Hatzalah Inc$1,00010%
Jewish Family and Children's Service Inc$1,00010%
Scottsdale Community Partners$90810%
Desert Botanical Garden Inc$50010%
Hillel the Foundation for Jewish Campus Life$50010%
Giffords$5001n/a
Defenders of Children$50010%
Feeding America$50010%
Phoenix Symphony Association$50010%
The American Society for the Prevention of Cruelty to Animals$50010%
Ecovivarium$5001n/a
Fountain Hills Theater Inc$3001n/a

What it could do for these grantees

Plus 87 recipients with no EIN on record ($346k), not named here.

Where it is load-bearing

Joseph & May Winston Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 43 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetValley Beit Midrash: $80,000 over 9y, 1.6% of budgetHand in Hand American Friends of the Center for Jewish-Arab Education in Isra: $50,000 over 5y, 0.2% of budgetPrescott Area Shelter Services Inc: $42,500 over 8y, 1.5% of budgetThe Welcome to America Project: $30,200 over 4y, 1.1% of budgetPartners for Pets Humane Society: $27,000 over 7y, 0.8% of budgetGesher Disability Resources Inc: $26,500 over 8y, 1.2% of budgetFamily Promise - Greater Phoenix: $12,036 over 5y, 0.4% of budgetInternational Institute of Metropolitan St Louis: $12,000 over 3y, 0.0% of budgetFoster Your Future: $8,000 over 2y, 3.2% of budgetMAZON A Jewish Response to Hunger: $6,040 over 4y, 0.0% of budgetArizona Jewish Historical Society: $5,500 over 4y, 0.1% of budgetOpen Arms Home for Children Inc: $5,000 over 1y, 0.4% of budgetAccel: $5,000 over 2y, 0.0% of budgetFoothills Food Bank: $4,500 over 3y, 0.0% of budgetKitchen on the Street Inc: $4,000 over 2y, 0.3% of budgetJust Strays Inc: $4,000 over 4y, 95% of budgetShelterbox USA Inc: $4,000 over 2y, 0.0% of budgetMcDowell Sonoran Conservancy: $2,750 over 5y, 0.2% of budgetMcLindon Family Foundation: $2,500 over 1y, 1.9% of budgetThe Singletons: $2,500 over 1y, 0.3% of budgetPhoenix Chamber Music Society: $2,500 over 1y, 0.5% of budgetTreehouse Wildlife Center Inc: $2,450 over 3y, 0.4% of budgetCommunity House: $2,000 over 1y, 2.8% of budgetSt Louis Area Food Bank Inc: $2,000 over 1y, 0.0% of budgetBlack Theatre Troupe Inc: $2,000 over 2y, 0.2% of budgetMatthew's Crossing: $2,000 over 1y, 0.1% of budgetFree Wheelchair Mission: $1,750 over 2y, 0.0% of budgetJewish National Fund-Usa Inc: $1,500 over 1y, 0.9% of budgetAmericares Foundation Inc: $1,041 over 1y, 0.0% of budgetArizona Science Center: $1,000 over 1y, 0.0% of budgetCrohn's & Colitis Foundation Inc: $1,000 over 1y, 0.0% of budgetHias Inc: $1,000 over 1y, 0.0% of budgetSierra Club: $1,000 over 1y, 0.0% of budgetDig Deep: $1,000 over 1y, 4.0% of budgetFriends of United Hatzalah Inc: $1,000 over 1y, 0.0% of budgetJewish Family and Children's Service Inc: $1,000 over 1y, 0.0% of budgetScottsdale Community Partners: $908 over 1y, 0.1% of budgetDesert Botanical Garden Inc: $500 over 1y, 0.0% of budgetHillel the Foundation for Jewish Campus Life: $500 over 1y, 0.0% of budgetDefenders of Children: $500 over 1y, 0.1% of budgetFeeding America: $500 over 1y, 0.0% of budgetPhoenix Symphony Association: $500 over 1y, 0.0% of budgetThe American Society for the Prevention of Cruelty to Animals: $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 43.

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.

Arizona Community FoundationAZ34.8× affinity17 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Arizona Community Foundation · Virginia G Piper Charitable Trust · Jewish Community Foundation of Greater Phoenix · The Bozena And Josef Zelenda Foundation · American Express Foundation · The Jess and Sheila Schwartz Family Foundation · Thunderbirds Charities · Jewish Community Association of Greater Phoenix · William & Ruth Pendleton Memorial Fund US Bank National Association · Friedel Family Foundation · The Albertsons Companies Foundation · Sundt 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 Joseph & May Winston Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Joseph & May Winston Foundation?

Find your warmest path to Joseph & May Winston 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 Joseph & May Winston Foundation

How much does Joseph & May Winston Foundation give?
Joseph & May Winston Foundation reported 33 grants totaling $106,299 in its FY2025 IRS filing. It funded between 19 and 39 organizations a year over FY2018 to FY2024.
What does Joseph & May Winston Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Religion (20%), Human Services (15%), International (11%).
Who are Joseph & May Winston Foundation's largest grantees?
By total granted over FY2017 to FY2025: Valley Beit Midrash ($80k), Hand in Hand American Friends of the Center for Jewish-Arab Education in Isra ($50k), Prescott Area Shelter Services Inc ($43k).
Does Joseph & May Winston Foundation fund new organizations?
In FY2024, 42% of the organizations it funded were first-time grantees.
Does Joseph & May Winston 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 Joseph & May Winston Foundation?
Its strongest co-funders, measured against what their size predicts, include Arizona Community Foundation, Virginia G Piper Charitable Trust, Jewish Community Foundation of Greater Phoenix.
Where is Joseph & May Winston Foundation based?
Joseph & May Winston Foundation is based in AZ.

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 138 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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