How much did ANTONIA FOUNDATION INCco F MICHAEL ARNOW grant in FY2025?

ANTONIA FOUNDATION INCco F MICHAEL ARNOW reported 13 grants totaling $675,623 in its FY2025 IRS filing.

Where is ANTONIA FOUNDATION INCco F MICHAEL ARNOW based?

ANTONIA FOUNDATION INCco F MICHAEL ARNOW is based in WI.

ANTONIA FOUNDATION INCco F MICHAEL ARNOW

Foundation Dossiers

· Private foundation

ANTONIA FOUNDATION INCco F MICHAEL ARNOW

This foundation accepts unsolicited grant applications.

$676k

Granted FY2025

Grants

Communities

$175k

Largest

01What you fund

0177% classified

What you funded, over time

Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2018–2025.

Environment$1.3MAnimals$776kArts & Culture$155kHealth$125kHuman Services$90kRecreation & Sports$5kOther$736k

02beneath the categories

Past the labels — and the year it shifted

Beneath the NTEE codes, this is what the grant descriptions actually say.

…and in their own words, year by year

2019

—

2020

—

2021

water

2022

—

2023

—

2024

—

2025

—

Words distinctive to each year’s grant purposes (TF-IDF) · event-driven terms in cyan.

03FY2025 · 13 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

$10k–50k8 grants · $176k
$50k–250k5 grants · $500k

$46,333

Median grant

States reached

$11M

Total assets

Largest grants

URBAN ECOLOGY CENTER$175,000
MILWAUKEE PUBLIC MUSEUM$110,000
MEQUON NATURE PRESERVE$85,000
INTERNATIONAL CRANE FOUNDATION$80,000
HUNGER TASK FORCE$50,000
ZOOLOGICAL SOCIETY OF MILW$49,290
VIVENT HEALTH$46,333
WISCONSIN HUMANE SOCIETY$25,000
NEIGHBORHOOD HOUSE OF MILWAUKEE$15,000
THE ALDO LEOPOLD NATURE CENTER$10,000
HOO'S WOODS RAPTOR CENTER$10,000
BOERNER BOTANICAL GARDENS$10,000
RIVEREDGE NATURE CENTER$10,000

02The need

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Your human-services grants (FY20–25, $90k) land where the poverty rate runs at 17% — the area typically sits at 11%. 100% of those dollars reach neighborhoods with above-average need. Most of your grants land in higher-need ZIPs.

grant to an above-average-need area below average· circle size = grant amount

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; grantee ZIP can differ from where services are delivered.

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA, United Way ALICE — shown as context about the area, never attributed to your giving.

03Your edge

repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

97%of every dollar goes to organizations you’ve funded before.

$3.2M · 17 repeat orgs$84k to everyone else

17 repeat relationships — 13 still active in FY2025, 4 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

Total granted

$3.2M

$84k

Median revenue growth · since first grant

+33%

+192%

Still filing today

76%

43%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

RenewedFirst-time

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

EnvironmentAnimalsArts & CultureHealthHuman ServicesRecreation & SportsOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

URBAN ECOLOGY CENTER
8× · 2018–2025 · $675k · revenue +33%
INTERNATIONAL CRANE FOUNDATION
8× · 2018–2025 · $550k · revenue +55%
WISCONSIN HUMANE SOCIETY
8× · 2018–2025 · $158k · revenue +30%

Funded once

FA
FEEDING AMERICAN EASTERN WI
one grant, 2023 · $30k
TG
THE GATHERING OF SE WI
one grant, 2023 · $20k
MILWAUKEE COUNTY HISTORICAL SOCIETY
one grant, 2021 · $10k · revenue +12%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

Milwaukee Parks Foundation Inc

Engage our community in supporting milwaukee county parks to collectively steward a thriving park system.

Environment

Milwaukee Riverkeeper Inc

Our mission is to protect water quality and wildlife habitat in the river corridors and to advocate for sound land use in the Milwaukee, Menomonee, and Kinnickinnic River Watersheds.

Environment

Milwaukee Development Corporation

Regional economic development

Community Improvement

Landmark Conservancy Inc

To preserve, protect & enhance the natural & scenic land & water resources of wisconsin & adjacent areas for conservation, recreational & cultural purposes.

Environment

Mississippi Valley Conservancy Inc

Mississippi valley conservancy is dedicated to conserving native and working landscapes that enrich our communities, through private, voluntary action, for the health and well-being of current and future generations in southwestern…

Environment

Waukesha County Historical Society & Museum Inc

The museum is an educational institution dedicated to preserving the history and culture of waukesha county.

—

Southeast Wisconsin Land Conservancy

Land Conservation

Environment

Land Conservancy of West Michigan

The Land Conservancy of West Michigan exists to help people protect, enjoy and care for natural land in West Michigan.

Environment

Museum of Wisconsin Art Inc

See schedule o for statement. a vital cultural center, educational institution, an expanding network of ideas, the museum of wisconsin art collects and interprets american art through the lens of a single state.

Arts & Culture

Friends of Wisconsin State Parks Inc

To preserve, promote, protect, and enhance wisconsin state parks, forests, trails, and recreation areas.

Recreation & Sports

Midwest Environmental Advocates Inc

A nonprofit law center that combines the power of law with the resolve of communities facing environmental injustice to secure and protect the rights of all people to healthy water, land, and air.

Crime & Legal

Gathering Waters Inc

To help land trusts, landowners, and communities protect the places that make wisconsin special.

Environment

For reference, the grantee most central to the portfolio’s shape is Urban Ecology Center Inc and the most unlike its peers is Milwaukee Public Museum Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

05the grantee network

16 grantees, every filing reconciled, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue.

Load-bearing (≥25% of a budget)

Early backer (in before they grew)

16/16

Grantees still filing

11/16

Grew since you first funded

Where your money sits — by cause, then by grantee

Environment$1,348,705Animals$775,500Other$736,370Arts & Culture$155,000Health$124,666Human Services$90,000Recreation & Sports$5,250

Each org by its size and your share of it — top-left is where you’re load-bearing

Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

Herbert H Kohl Charities IncWI24.3× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Herbert H Kohl Charities Inc · Green Bay Packers Foundation · Greater Milwaukee Foundation Inc · Baird Foundation Inc · John C Bock Foundation · Dorothy Inbusch Foundation Inc · The Brookby Foundation · Ralph Evinrude Foundation Inc · James E Dutton Foundation Inc · Evan & Marion Helfaer Foundation · Joseph and Vera Zilber Family Foundation Inc · Alliant Energy Foundation Inc

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organisation ANTONIA FOUNDATION INCco F MICHAEL ARNOW funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2024

’20’21’22’23’24

no gov moneyreceives it· size = income

0get no government money at all

0rely on government for over half their income

⤢ axis zoomed · 0–10%

typical government reliance, FY20–24

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. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

05Through Plinth

Through Plinth

Your grantmaking, live and operational

This dossier was generated cold from public filings. In Plinth it’s a working system — every applicant assessed and every grant monitored. Here’s a taste, run on one of your grantees: RIVER REVITALIZATION FOUNDATION.

Agentic due diligence · confidence × risk

Financial management

insufficient risk

Limited financial data in public filings.

Track record & reputation

low risk

8 years of Form 990 filings, still active.

Legal standing

low risk

US 501(c)(3); EIN 391887400 on file with current IRS Form 990 filings.

Governance

Live in Plinth

Board composition & governance documents — verified live in Plinth from the applicant.

Compliance & sanctions

Live in Plinth

OFAC / UN sanctions screening — run live in Plinth at assessment.

Program capacity

Live in Plinth

Staffing, M&E and activity alignment — assessed live in Plinth from submitted proposals.

Live · Plinth’s real DD engine

Run the actual assessment on RIVER REVITALIZATION FOUNDATION, cold from public data.

Generated live from public IRS filings + open web sources by Plinth’s agentic engine. Shown as an illustration of the product, not a formal assessment.

Post-award monitoring · continuous checks

Awaiting reportFinancial stability— Runway not derivable from filings.
WatchSustained operations— Filing through 2024; revenue contracted over the period.
On trackReliance on your funding— Your grants peaked at 14% of their budget — diversified.
Awaiting reportEvidence of delivery— Plinth collects the grantee's own monitoring reports post-award.

What you see here is static and public. In Plinth it’s operational — the full six-pillar framework on every applicant (with their own documents + live registry and sanctions checks), monitoring dashboards on every award, custom board reports, and eligibility routing for intake.

Agentic due diligenceMonitoring dashboardsCustom board reportsEligibility routing

Preview generated from this grantee’s public IRS filings and independent reporting. Pillars marked “live in Plinth” require the applicant’s submitted documents. Shown as illustration, not a formal assessment.

Warm introductions · Powered by PlinthPro

How do I get to ANTONIA FOUNDATION INCco F MICHAEL ARNOW?

Find your warmest path to ANTONIA FOUNDATION INCco F MICHAEL ARNOW through people who sit on both boards. Search for your organization and Plinth traces the introduction across shared trustees and officers.

Every link is a documented governance overlap in public IRS 990 filings — not a personal network — and each hop carries its own confidence tier. Low-confidence or distant paths are held back rather than guessed.

ANTONIA FOUNDATION INCco F MICHAEL ARNOW

What you funded, over time

Past the labels — and the year it shifted

Where the money goes

Do your dollars go where the need is?

Who you back again

Backed again, and grew

Funded once

16 grantees, every filing reconciled, 2017–2025.

Government reliance of your grantees

Your grantmaking, live and operational

How do I get to ANTONIA FOUNDATION INCco F MICHAEL ARNOW?

More from the funding graph

ANTONIA FOUNDATION INCco F MICHAEL ARNOW

What you funded, over time

Past the labels — and the year it shifted

Where the money goes

Do your dollars go where the need is?

Who you back again

Backed again, and grew

Funded once

16 grantees, every filing reconciled, 2017–2025.

Government reliance of your grantees

Your grantmaking, live and operational

How do I get to ANTONIA FOUNDATION INCco F MICHAEL ARNOW?

More from the funding graph