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Private foundation

William and Mary Singer 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.

$125k
Granted FY2025(still arriving)
6
Grants FY2025
10
Organizations funded FY2024
30%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$25,000
Largest grant, FY2025
$25,000
Organizations funded a year
10 to 49
FY2020 to FY2024
States reached, FY2025
3
Total assets, FY2025
$2.4M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 30% of the organizations William and Mary Singer Family Foundation funded were first-time grantees, receiving 4% of its grant dollars.

New vs renewed · share of each year

In FY2024, 96% of grant dollars renewed an existing relationship; $13k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time
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 arriving6$125k17%
FY202410$288k30%
FY202316$299k13%
FY202224$96k25%
FY202134$77k18%
FY202049$59kn/a
88% classified

What it funded, over time

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

Education$247kHealth$234kReligion$106kHuman Services$57kArts & Culture$48kCivil Rights$31kRecreation & Sports$28kPhilanthropy$9kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
NY
CA
UT
NE
MO
VA
MD
AZ
TN
DC
LA
TX

Top grantees

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

Show all 27 grantees

What it could do for these grantees

Plus 40 recipients with no EIN on record ($674k), not named here.

Where it is load-bearing

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetUniversity of Arizona Foundation: $122,000 over 6y, 0.0% of budgetThe United States Holocaust Memorial Museum: $42,500 over 5y, 0.0% of budgetArizona State University Foundation for a New American University: $25,000 over 1y, 0.0% of budgetTucson Centers for Women & Children Inc Dba Emerge Center Against Domestic Abuse: $19,000 over 4y, 0.1% of budgetAmerican Heart Association Inc: $12,000 over 3y, 0.0% of budgetAlzheimer's Disease & Related Disorders Association Inc: $12,000 over 3y, 0.0% of budgetTherapeutic Riding of Tucson Inc: $7,700 over 4y, 0.6% of budgetTucson Wildlife Center Inc: $5,500 over 4y, 0.1% of budgetCommunity Food Bank Inc: $5,000 over 3y, 0.0% of budgetAnti-Defamation League: $4,000 over 3y, 0.0% of budgetJewish Family & Children's Service of Southern Arizona Inc: $4,000 over 1y, 0.1% of budgetFinca International Inc: $1,350 over 2y, 0.0% of budgetAmerican Friends of Magen David Adom: $1,000 over 1y, 0.0% of budgetGuide Dogs for the Blind Inc: $1,000 over 1y, 0.0% of budgetBest Friends Animal Society: $1,000 over 1y, 0.0% of budgetOperation Smile Inc: $1,000 over 2y, 0.0% of budgetCasa de Los Ninos: $900 over 2y, 0.0% of budgetArizona-Sonora Desert Museum: $650 over 2y, 0.0% of budgetGabriels Angels Inc: $500 over 1y, 0.1% of budgetFather Flanagan's Boys' Home: $400 over 1y, 0.0% of budgetNational Parks Conservation Association: $200 over 1y, 0.0% of budgetThe Sonoran Institute Inc: $200 over 1y, 0.0% of budgetOcean Conservancy: $200 over 1y, 0.0% of budgetTucson Audubon Society: $200 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.

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 for Southern ArizonaAZ21.8× affinity8 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation for Southern Arizona · The Hs Lopez Family Foundation · United Way of Tucson and Southern Arizona Inc · American Online Giving Foundation Inc · 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.

Compare William and Mary Singer Family Foundation with peer funders

About William and Mary Singer Family Foundation

How much does William and Mary Singer Family Foundation give?
William and Mary Singer Family Foundation reported 6 grants totaling $125,000 in its FY2025 IRS filing. It funded between 10 and 49 organizations a year over FY2020 to FY2024.
What does William and Mary Singer Family Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Education (26%), Health (25%), Religion (11%).
Who are William and Mary Singer Family Foundation's largest grantees?
By total granted over FY2020 to FY2025: University of Arizona Foundation ($122k), The United States Holocaust Memorial Museum ($43k), Arizona State University Foundation for a New American University ($25k).
Does William and Mary Singer Family Foundation fund new organizations?
In FY2024, 30% of the organizations it funded were first-time grantees.
Does William and Mary Singer 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 William and Mary Singer Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Community Foundation for Southern Arizona, The Hs Lopez Family Foundation, United Way of Tucson and Southern Arizona Inc.

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 68 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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