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New York · Private foundation

Alvin & Ruth Thiem Charitable Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$464k
Granted FY2025(still arriving)
16
Grants FY2025
17
Organizations funded FY2024
0%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$12,000
Largest grant, FY2025
$95,000
Organizations funded a year
17 to 20
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$5.6M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 0% of the organizations Alvin & Ruth Thiem Charitable Foundation funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’18’19’20’21’22’23’24
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 arriving16$464k0%
FY202417$504k0%
FY202318$526k0%
FY202218$556k0%
FY202118$559k0%
FY202019$516k5%
FY201918$470k0%
FY201820$432k5%
100% classified

What it funded, over time

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

Education$3.3MHealth$789kHuman Services$139kArts & Culture$123kAnimals$70kReligion$53kYouth Development$1k

Top grantees

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

Plus 13 recipients with no EIN on record ($2.3M), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Alvin & Ruth Thiem Charitable Foundation supplied at peak.

25%50%75%100%$100Mgrantee revenue →↑ funder's share of their budgetSt John Fisher University: $889,250 over 8y, 0.1% of budgetNazareth University: $758,250 over 9y, 0.1% of budgetRoberts Wesleyan University: $203,000 over 9y, 0.1% of budgetThe Aquinas Institute of Rochester: $70,100 over 9y, 0.1% of budgetWxxi Public Broadcasting Council: $62,850 over 9y, 0.1% of budgetJewish Senior Life Foundation Inc: $59,500 over 9y, 0.2% of budgetThe Humane Society of Rochester & Monroe County for the Prevention of Cruelty To: $52,500 over 9y, 0.1% of budgetYMCA of Greater Rochester (4368): $9,000 over 2y, 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 8.

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.

Rochester Area Community FoundationNY17.5× affinity6 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Rochester Area Community Foundation · Max and Marian Farash Charitable Foundation · Daisy Marquis Jones Foundation · Rochester Area Community Foundation Depository Inc · Greater Rochester Health Foundation · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · 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 Alvin & Ruth Thiem Charitable Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Alvin & Ruth Thiem Charitable Foundation?

Find your warmest path to Alvin & Ruth Thiem Charitable 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 Alvin & Ruth Thiem Charitable Foundation

How much does Alvin & Ruth Thiem Charitable Foundation give?
Alvin & Ruth Thiem Charitable Foundation reported 16 grants totaling $463,500 in its FY2025 IRS filing. It funded between 17 and 20 organizations a year over FY2018 to FY2024.
What does Alvin & Ruth Thiem Charitable Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (74%), Health (18%), Human Services (3%).
Who are Alvin & Ruth Thiem Charitable Foundation's largest grantees?
By total granted over FY2017 to FY2025: St John Fisher University ($889k), Nazareth University ($758k), Roberts Wesleyan University ($203k).
Does Alvin & Ruth Thiem Charitable Foundation fund new organizations?
In FY2024, 0% of the organizations it funded were first-time grantees.
Does Alvin & Ruth Thiem Charitable Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Alvin & Ruth Thiem Charitable Foundation?
Its strongest co-funders, measured against what their size predicts, include Rochester Area Community Foundation, Max and Marian Farash Charitable Foundation, Daisy Marquis Jones Foundation.
Where is Alvin & Ruth Thiem Charitable Foundation based?
Alvin & Ruth Thiem Charitable Foundation is based in NY.

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 22 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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