How much does William & Sandy Heitz Family Foundation give?

William & Sandy Heitz Family Foundation reported 18 grants totaling $194,178 in its FY2025 IRS filing. It funded between 12 and 35 organizations a year over FY2017 to FY2024.

What does William & Sandy Heitz Family Foundation fund?

By grant dollars over FY2017 to FY2025, its largest causes are Education (49%), Human Services (25%), Health (13%).

Who are William & Sandy Heitz Family Foundation's largest grantees?

By total granted over FY2017 to FY2025: The Medical College of Wisconsin Inc ($420k), Wounded Warrior Project Inc ($140k), Stephen Siller Tunnel to Towers Foundation ($135k).

Does William & Sandy Heitz Family Foundation fund new organizations?

In FY2024, 17% of the organizations it funded were first-time grantees.

Does William & Sandy Heitz Family Foundation accept unsolicited applications?

Its most recent filing reports that it accepts unsolicited grant applications.

Which funders back the same organizations as William & Sandy Heitz Family Foundation?

Its strongest co-funders, measured against what their size predicts, include Greater Milwaukee Foundation Inc, Green Bay Packers Foundation, United Way of Greater Milwaukee & Waukesha County Inc.

Where is William & Sandy Heitz Family Foundation based?

William & Sandy Heitz Family Foundation is based in WI.

William & Sandy Heitz Family Foundation

William & Sandy Heitz Family Foundation at a glance

· Private foundation

William & Sandy Heitz Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$194k

Granted FY2025still arriving

Grants FY2025still arriving

States reached

$50k

Largest

01What it funds

0199% classified

What it funded, over time

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

Education$611kHuman Services$315kHealth$164kInternational$45kCommunity Improvement$35kFood & Nutrition$29kArts & Culture$15kYouth Development$12kOther$0

02FY2025 · 18 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

Under $10k11 grants · $31k
$10k–50k6 grants · $113k
$50k–250k1 grant · $50k

$5,000

Median grant

States reached

$2.4M

Total assets

Largest grants
Recipient	Amount
MEDICAL COLLEGE OF WISCONSIN	$50,000
SAMARITAN'S PURSE	$25,000
STEPHEN SILLER TUNNEL TO TOWERS FDN	$25,000
WOUNDED WARRIOR PROJECT	$25,000
THE LEAGUE CLUB	$18,000
MAKE A WISH	$10,105
CHARLES E KUBLY FOUNDATION	$10,000
IPTAY CLEMSON UNIVERSITY	$8,000
SHELTER FOR ABUSED WOMEN	$5,000
PROJECT HELP INC	$5,000
TENNESSEE PERFORMING ARTS CENTER	$3,000
GREENVILLE ZOO	$2,010
ST MARY MAGDALENE CATHOLIC CHURCH	$2,000
CENTER FOR DEAF-BLIND PERSONS	$2,000
AUDIO BRAILLE LITERACY ENHANCEMENT	$1,500

02The need

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, $148k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 99% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

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

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.

92%of every dollar goes to organizations it has funded before.

$1.2M · 31 repeat orgs$98k to everyone else

Grantees it renews have grown median revenue +27% since the first grant, against +23% for those funded once.

31 repeat relationships: 14 still active in FY2025, 17 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

Total granted

$1.2M

$89k

Median revenue growth · since first grant

+27%

+23%

Still filing today

77%

37%

New vs renewed · share of each year

In FY2025, 96% of grant dollars renewed an existing relationship; $9k went to new ones.

RenewedFirst-time

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

HealthEducationHuman ServicesPhilanthropyCommunity ImprovementArts & CultureOther

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

TM
THE MEDICAL COLLEGE OF WISCONSIN INC
8× · 2017–2025 · $420k · revenue +54%
WOUNDED WARRIOR PROJECT INC
8× · 2017–2025 · $140k · revenue +90%
STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION
6× · 2020–2025 · $135k · revenue +392%

Funded once

MA
MAKE A WISH FOUNDATION
one grant, 2017 · $15k
AW
ASCENSION WISCONSIN FOUNDATION INCgraduated
one grant, 2017 · $11k · revenue +313%
AR
AMERICAN RED CROSS
one grant, 2017 · $10k

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.

Disability Rights Wisconsin Inc

Legal protection and advocacy to protect the rights of people with disabilities in wisconsin.

—

Wisconsin Medical Society Inc

To improve the health of the people of wisconsin by supporting and strengthening physicians' ability to practice high quality patient care in a changing environment.

—

The Als Association Inc Wisconsin Chapter

To lead the fight to cure and treat als through global, cutting-edge research, and to empower people living with als in wisconsin, and their families, to live fuller lives by providing them with compassionate care and support.

Health

Pathways of Wisconsin Inc

Pathways of wisconsin provides supported employment opportunities and empowerment through quality, person-centered programming for individuals of all abilities.

Human Services

Wisconsin Association of Health Plans Inc

Promote a positive state legislative and regulatory climate for wisconsin's community health plans. the association communicates with regulatory agencies to promote issue positions representing community health plans.

—

Community Care Health Plan Inc

Community care health plan's mission is to develop and demonstrate innovative, flexible, community-based approaches to care for at-risk adults, in order to optimize their quality of life and optimize the allocation of community resources.

Health

My Choice Wisconsin Inc

We inspire people to experience life at its fullest by encouraging ownership of health, fostering independence, and serving the whole person; and do so with an unwavering commitment as stewards of medicaid funding.

Health

Wisconsin Lutheran Home Ministries Inc

To share christ's love as we serve the spiritual, physical, intellectual and emotional needs of people entrusted to our care and others whose lives we touch.

—

Portal Inc

To enhance opportunities for people with intellectual and developmental disabilities (i/dd) to participate fully in their community as valued neighbors, productive workers and respected citizens. portal, inc. assists more than 200 adults…

Employment

Pharmacy Society of Wisconsin Inc

Provide a unified voice, resources, and leadership to advance the pharmacy profession and improve the quality of medication use in wisconsin.

—

Wisconsin Policy Forum Inc

We conduct impartial public policy research and analysis to drive informed debate and effective decision-making in the state of wisconsin.

Public Benefit

Wisconsin Family Ties Inc

Wisconsin family ties changes lives by improving children's mental health. it accomplishes this mission through a set of interrelated activities that support and educate parents, and inform practitioners, policy makers and the public about…

—

How this is measured

The grantee most central to the portfolio’s shape is Milwaukee Center for Independence Inc; the most unlike its peers is Samaritan's Purse. 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

40 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 40 of the 70 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.

Load-bearing (≥25% of a budget)

Early backer (in before they grew)

39/40

Grantees still filing

26/40

Grew since first funded

Where the money sits, by cause and then by grantee

Education$569,284Other$339,386Human Services$148,400Health$126,044Religion$45,000Arts & Culture$15,000Food & Nutrition$14,500

Each grantee by its size and the funder’s share of it; top left is load-bearing

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.

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.

Greater Milwaukee Foundation IncWI32.4× affinity14 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Greater Milwaukee Foundation Inc · Green Bay Packers Foundation · United Way of Greater Milwaukee & Waukesha County Inc · Herbert H Kohl Charities Inc · Baird Foundation Inc · STACKNER FAMILY FOUNDATION INC co KRISTIN A OCCHETTI · Ralph Evinrude Foundation Inc · Evan & Marion Helfaer Foundation · Melitta S and Joan M Pick Charitable Trust · Gardner Foundation · Wispact Inc · Anon Charitable Trust

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 William & Sandy Heitz Family Foundation funds: left to right is the share of its income from government, bottom to top the share from William & Sandy Heitz Family Foundation. Bigger dots raise more.

2024

’20’21’22’23’24’25

no gov moneyreceives it· size = income

1get no government money at all

9report government grants on their 990 we could not trace to a source (not plotted)

0rely on government for over half their income

⤢ axis zoomed · 0–90%

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 William & Sandy Heitz Family Foundation?

Find your warmest path to William & Sandy Heitz Family 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.

Play a game based on William & Sandy Heitz Family’s filings →

More from the funding graph

The unnamed billions

grants reported with no recipient in the public record

The regranting layer

51% of grant dollars land in the regranting layer

The DAF merry-go-round

$9.7B circulates between donor-advised funds

The endowment market

who holds foundation money, and what just moved

The camps

funders cluster by geography, not ideology

By state

where grant money is based, and what stays home