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· Private foundation

Tamaqua Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$90k
Granted FY2025still arriving
11
Grants FY2025still arriving
7
States reached
$35k
Largest
01What it funds
01100% classified

What it funded, over time

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

Education$423kHealth$100kArts & Culture$96kReligion$93kRecreation & Sports$64kPhilanthropy$63kAnimals$44kEnvironment$33kOther$0
02FY2025 · 11 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k7 grants · $20k
  • $10k–50k4 grants · $70k
$5,000
Median grant
7
States reached
$1.0M
Total assets
Largest grants
RecipientAmount
CURTIS SCHOOL$35,000
REWILD$15,000
UNIVERSITY OF PA$10,000
JEWISH FEDERATION OF GREATER PHILADELPHIA$10,000
FRIENDS SELECT SCHOOL$5,000
THE COMEDY CURES FOUNDATION$5,000
WLA LITTLE LEAGUE$4,000
NEW NATURE FOUNDATION$2,500
CEDARS SINAI MEDICAL CENTER$2,000
YOUTH RENEWAL FUND$1,000
BEST BUDDIES INTERNATIONAL$500
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 (FY17–25, $22k) land where the poverty rate runs at 13%, against an area that typically sits at 12%. 40% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 12%THE COMEDY CURES FOUNDATION: $5k → 7%THE COMEDY CURES FOUNDATION: $1k → 7%THE COMEDY CURES FOUNDATION: $1k → 7%THE COMEDY CURES FOUNDATION: $1k → 7%THE COMEDY CURES FOUNDATION: $1k → 7%THE COMEDY CURES FOUNDATION: $1k → 7%THE COMEDY CURES FOUNDATION: $1k → 7%THE COMEDY CURES FOUNDATION: $1k → 7%PROJECT HOME: $1k → 22%THE COMEDY CURES FOUNDATION: $1k → 7%GARCES FOUNDATION: $5k → 22%GARCES FOUNDATION: $3k → 22%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.

Which US states its grants reach

NY
OH
PA
NJ
CA
CO
DC
TX
FL
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.

95%of every dollar goes to organizations it has funded before.
$784k · 19 repeat orgs$40k to everyone else

Grantees it renews have grown median revenue +59% since the first grant, against +13% for those funded once.

19 repeat relationships: 8 still active in FY2025, 11 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

19
14

Total granted

$784k
$36k

Median revenue growth · since first grant

+59%
+13%

Still filing today

53%
57%

New vs renewed · share of each year

In FY2025, 94% of grant dollars renewed an existing relationship; $5k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
EducationArts & CultureHuman ServicesHealthAnimalsEnvironmentOther
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

  • PA
    PS ARTS
    5× · 2017–2024 · $73k · revenue +35%
  • FRIENDS OF RITTENHOUSE SQUARE
    6× · 2017–2022 · $60k · revenue +188%
  • REWILD
    6× · 2018–2025 · $45k · revenue +236%

Funded once

  • OW
    OHIO WESLEYAN UNIVERSITYgraduated
    one grant, 2018 · $12k · revenue +44%
  • AA
    American Association for Cancer Research Inc
    one grant, 2017 · $5k · revenue +12%
  • PM
    PENN MEDICINE HOSPICE FRIENDS FUND
    one grant, 2024 · $5k
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
The Philadelphia School

The philadelphia school educates children for a future that is impossible to know but not impossible to shape. learn here. go anywhere.

—
2
The International School of San Francisco

Guided by the principles of academic rigor and diversity, the international school of san francisco offers programs of study in french and english to prepare its graduates for a world in which the ability to think critically and to…

Education
3
The San Francisco School

A private school that cultivates and celebrates the intellectual, imaginative, and humanitarian promise of each student in a community that practices mutual respect, embraces diversity, and inspires passion for learning.

—
4
The Mirman School for Gifted Children

We cultivate the boundless potential of highly gifted children, nurture their passions and talents, and develop a diverse community of creative and constructive lifelong learners.

Education
5
San Francisco Friends School

At san francisco friends school, students learn in a community grounded in the quaker values of reflection, integrity, peaceful problem-solving and stewardship. our teachers challenge students with a dynamic curriculum that inspires…

Education
6
Trustees of the American School of Classical Studies at Athens

The broad mission of the ASCSA has remained constant over its distinguished history: teaching research archaeological exploration publication and dissemination of research. Founded in 1881 the ASCSA provides graduate students and scholars…

Arts & Culture
7
Association of California School Administrators

The association serves its members by creating resources that enable california school administrators to develop and apply creative leadership and management skills and in turn, improve the educational process for all students.

—
8
Princeton International School of Mathematics and Science Inc

The purpose of the school is to promote, advance and sponsor charitable and educational activities.

Education
9
The Trustees of Princeton University

Research, education and general - princeton university is a private not-for-profit, non-sectarian institution of higher learning with approximately 5,700 undergraduate and 3,300 graduate students. 2,500 students graduated in the 2024-2025…

Education
10
New York School of Interior Design

New york school of interior design provides the most innovative, immersive, and transformative interior design education in the world, demonstrating the impact of professionally designed interiors on the health, happiness, and well-being…

Education
11
The Buckley School

The buckley school is a dynamic, nurturing learning community committed to equity and inclusion. our innovative teachers and challenging programs inspire creativity, courage, and collaboration. by promoting a balanced development of mind,…

—
12
San Francisco Girls' School

To educate and inspire girls to become innovators and leaders in stem.

—
How this is measured
The grantee most central to the portfolio’s shape is Ps Arts; the most unlike its peers is Cedars-Sinai Medical Center. 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

23 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. 23 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)
3
Early backer (in before they grew)
21/23
Grantees still filing
18/23
Grew since first funded

Where the money sits, by cause and then by grantee

CURTIS SCHOOL: $109,500 · OtherCURTIS SCHOOLRODEPH SHALOM CONGREGATION: $93,280 · OtherRODEPH SHALOM CONGREGATIONUNIVERSITY OF PA: $87,000 · OtherUNIVERSITY OF PAPS ARTS: $73,000 · OtherPS ARTSSCHEIE EYE INSTITUTE: $60,000 · OtherSCHEIE EYE INSTITUTEICA UNIVERSITY OF PA: $59,600 · OtherICA UNIVERSITY OF PAGLAZA - LOS ANGELES ZOO: $26,500 · Other+16 more: $52,400 · Other+16 moreFRIENDS SELECT SCHOOL: $54,000 · EducationFRIENDS SELECT SCHOO…UNIVERSITY OF SOUTHERN CALIFORNIA: $52,000 · EducationUNIVERSITY OF SOUTHE…CROSSROADS SCHOOL FOR ARTS AND SCIENCES: $45,000 · EducationCROSSROADS SCHOOL FO…OHIO WESLEYAN UNIVERSITY: $12,000 · EducationOHIO WESLEYAN UNIVER…+2 more: $4,000 · EducationJEWISH FEDERATION OF GREATER PHILADELPHIA: $60,500 · PhilanthropyFRIENDS OF RITTENHOUSE SQUARE: $60,000 · EnvironmentREWILD: $45,000 · AnimalsCEDARS-SINAI MEDICAL CENTER: $17,000 · HealthAmerican Association for Cancer Research Inc: $5,000 · HealthCOMEDY CURES FOUNDATION INC: $13,000 · Human ServicesGARCES FAMILY FOUNDATION: $7,500 · Human ServicesPROJECT HOME: $1,000 · Human Services
Other$561,280Education$167,000Philanthropy$60,500Environment$60,000Animals$45,000Health$22,000Human Services$21,500

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 budgetPS ARTS: $73,000 over 5y, 0.4% of budgetJEWISH FEDERATION OF GREATER PHILADELPHIA: $60,500 over 9y, 0.0% of budgetFRIENDS OF RITTENHOUSE SQUARE: $60,000 over 6y, 2.9% of budgetFRIENDS SELECT SCHOOL: $54,000 over 9y, 0.0% of budgetUNIVERSITY OF SOUTHERN CALIFORNIA: $52,000 over 5y, 0.0% of budgetREWILD: $45,000 over 6y, 0.0% of budgetCROSSROADS SCHOOL FOR ARTS AND SCIENCES: $45,000 over 6y, 0.1% of budgetCEDARS-SINAI MEDICAL CENTER: $17,000 over 9y, 0.0% of budgetAmericans for the Arts Inc: $16,000 over 4y, 0.1% of budgetCOMEDY CURES FOUNDATION INC: $13,000 over 9y, 3.4% of budgetOHIO WESLEYAN UNIVERSITY: $12,000 over 1y, 0.0% of budgetThe Wild Horse Foundation Inc: $8,000 over 2y, 1.6% of budgetGARCES FAMILY FOUNDATION: $7,500 over 2y, 0.8% of budgetAmerican Association for Cancer Research Inc: $5,000 over 1y, 0.0% of budgetYOUTH RENEWAL FUND: $3,000 over 3y, 0.0% of budgetTHE LOS ANGELES DODGERS FOUNDATION: $2,000 over 2y, 0.0% of budgetBRENTWOOD SCHOOL: $1,000 over 1y, 0.0% of budgetPHILADELPHIA MUSEUM OF ART: $1,000 over 1y, 0.0% of budgetPROJECT HOME: $1,000 over 1y, 0.0% of budgetPLURALISTIC SCHOOL INC: $1,000 over 1y, 0.0% of budgetMETROPOLITAN AREA NEIGHBORHOOD NUTRITION ALLIANCE: $1,000 over 1y, 0.0% of budgetASPEN FILM: $1,000 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.

  • Who funds PS ARTS ↗
  • Who funds JEWISH FEDERATION OF GREATER PHILADELPHIA ↗
  • Who funds FRIENDS OF RITTENHOUSE SQUARE ↗
  • Who funds FRIENDS SELECT SCHOOL ↗
  • Who funds UNIVERSITY OF SOUTHERN CALIFORNIA ↗
  • Who funds REWILD ↗
  • Who funds CROSSROADS SCHOOL FOR ARTS AND SCIENCES ↗
  • Who funds CEDARS-SINAI MEDICAL CENTER ↗
  • Who funds Americans for the Arts Inc ↗
  • Who funds COMEDY CURES FOUNDATION INC ↗
  • Who funds OHIO WESLEYAN UNIVERSITY ↗
  • Who funds The Wild Horse Foundation Inc ↗
  • Who funds GARCES FAMILY FOUNDATION ↗
  • Who funds American Association for Cancer Research Inc ↗
  • Who funds YOUTH RENEWAL FUND ↗
  • Who funds THE LOS ANGELES DODGERS FOUNDATION ↗
  • Who funds BRENTWOOD SCHOOL ↗
  • Who funds PHILADELPHIA MUSEUM OF ART ↗
  • Who funds PROJECT HOME ↗
  • Who funds PLURALISTIC SCHOOL INC ↗
  • Who funds METROPOLITAN AREA NEIGHBORHOOD NUTRITION ALLIANCE ↗
  • Who funds ASPEN FILM ↗
  • Who funds Best Buddies International Inc ↗

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.

Jewish Communal FundNY13.2× affinity5 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Jewish Communal Fund · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · Jpmorgan Chase Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · The Bank of America Charitable Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · 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 Tamaqua Foundation funds: left to right is the share of its income from government, bottom to top the share from Tamaqua Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 4%
  • Best Buddies International Inc: 4% of income from government
no gov moneyreceives it· size = income
1get no government money at all
5report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–40%
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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Tamaqua Foundation?

Find your warmest path to Tamaqua 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.

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

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