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· Private foundation

John and Peggy Zimdars 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.

$44k
Granted FY2025still arriving
21
Grants FY2025still arriving
3
States reached
$13k
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.

Religion$334kEducation$122kPhilanthropy$47kArts & Culture$26kHealth$18kInternational$10kFood & Nutrition$7kHuman Services$2kOther$0
02FY2025 · 21 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k20 grants · $32k
  • $10k–50k1 grant · $13k
$1,000
Median grant
3
States reached
$129k
Total assets
Largest grants
RecipientAmount
Time of Grace$12,500
University of Wisconsin Foundation$5,500
Wisconsin Historical Foundation$5,000
Wisconsin Youth Symphony Orchestras$5,000
Siebert Lutheran Foundation$2,500
Wisconsin Lutheran Chapel$2,000
Christ Lutheran Church$1,500
Wisconsin Evangelical Lutheran Synod$1,500
Little Saints Early Childhood Center$1,000
First Emmanuel Lutheran School$1,000
Access Community Health Center$1,000
The Community Foundation of Western North Carolina$1,000
WELS Kingdom Workers$1,000
Individual grant recipient$1,000
St Marcus Lutheran School$700
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 (FY21–21, $750) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 33% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 9%Northern Door Child Care: $500 → 8%Domestic Abuse Intervention Services: $250 → 10%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.
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 7% of John and Peggy Zimdars Foundation’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 99% of the giving stays in WI; by stated purpose, 92%.

John and Peggy Zimdars Foundationlessmore of its giving
Placed by recipient address
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

93%of every dollar goes to organizations it has funded before.
$517k · 24 repeat orgs$39k to everyone else

Grantees it renews have grown median revenue +41% since the first grant, against +30% for those funded once.

24 repeat relationships: 12 still active in FY2025, 12 since wound down; 8 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

24
35

Total granted

$517k
$24k

Median revenue growth · since first grant

+41%
+30%

Still filing today

42%
26%

New vs renewed · share of each year

In FY2025, 65% of grant dollars renewed an existing relationship; $15k 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
Arts & CultureEducationReligionHuman ServicesCivil RightsHealthOther
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

  • UO
    UNIVERSITY OF WISCONSIN FOUNDATION
    9× · 2017–2025 · $62k · revenue +39%
  • SL
    SIEBERT LUTHERAN FOUNDATION INC
    4× · 2022–2025 · $48k · revenue +303%
  • TO
    TIME OF GRACE MINISTRY
    7× · 2017–2025 · $41k · revenue +40%

Funded once

  • CC
    Carbone Cancer Center
    one grant, 2024 · $5k
  • HC
    HOLY CROSS LUTHERAN CHURCH
    one grant, 2017 · $3k
  • HC
    HOLY CROSS LUTHERAN SCHOOL
    one grant, 2018 · $3k
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
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
2
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.

—
3
Midwest Dairy Association

Midwest dairy works with others to give consumers an excellent dairy experience increasing sales, fostering innovation, and inspiring consumer confidence of dairy products and practices.

—
4
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.

—
5
Door County Land Trust Inc

The door county land trust is a local, non-governmental non-profit organization whose mission is to preserve door county's exceptional lands and waters forever.

Environment
6
United Way of Wisconsin Inc

United way of wisconsin is dedicated to supporting and enriching a strong statewide united way network that maximizes the capacity of local united ways to address human needs, improve lives and create lasting positive change across…

Philanthropy
7
Westconsin Credit Union

The organization is a cooperative, nonprofit corporation, incorporated under wisconsin state law to encourage thrift among its members, create a source of credit at a fair and reasonable cost, and provide an opportunity for its members to…

—
8
Landmark Conservancy Inc

Landmark conservancy is a nationally accredited, nonprofit conservation organization serving 20 counties across northwest wisconsin. their mission is to conserve wisconsin's natural legacy for everyone...forever.

Environment
9
Wisconsin Collaborative for Healthcare Quality Inc

Wisconsin collaborative for healthcare quality, inc. publicly reports and brings meaning to performance measurement information that improves the quality and affordability of healthcare in wisconsin, in turn improving the health of…

Health
10
Disability Rights Wisconsin Inc

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

—
11
Reedsburg Area Medical Center

Reedsburg area medical center, always there, going beyond the expected to provide compassionate, quality, and efficient health care.

Health
12
Wisconsin Dental Association Inc

Advance the interests of wda members and the dental profession by promoting professional excellence and quality oral health care for the public.

Community Improvement
How this is measured
The grantee most central to the portfolio’s shape is Wisconsin Evangelical Lutheran Synod Kingdom Workers Inc; the most unlike its peers is Siebert Lutheran Foundation 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

25 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. 25 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.

0
Load-bearing (≥25% of a budget)
6
Early backer (in before they grew)
24/25
Grantees still filing
19/25
Grew since first funded

Where the money sits, by cause and then by grantee

WISCONSIN LUTHERAN CHAPEL: $211,450 · OtherWISCONSIN LUTHERAN CHAPELSIEBERT LUTHERAN FOUNDATION INC: $47,500 · OtherSIEBERT LUTHERAN FOUNDATION INCUNITED WAY OF DANE COUNTY INC: $40,000 · OtherUNITED WAY OF DANE COUNTY INCWISCONSIN LUTHERAN COLLEGE INC: $30,000 · OtherWISCONSIN LUTHERAN COLLEGE INCLighthouse Christian School: $16,000 · Other+50 more: $70,090 · Other+50 moreUNIVERSITY OF WISCONSIN FOUNDATION: $62,450 · EducationUNIVERSITY O…+1 more: $100 · EducationTIME OF GRACE MINISTRY: $41,000 · ReligionTIME OF GRA…NATIONAL CHRISTIAN FOUNDATION -- WISCONSIN INC: $9,000 · ReligionNATIONAL CH…WISCONSIN EVANGELICAL LUTHERAN SYNOD KINGDOM WORKERS INC: $7,000 · ReligionWISCONSIN E…MADISON SYMPHONY ORCHESTRA INC: $13,620 · Arts & CultureWISCONSIN YOUTH SYMPHONY ORCHESTRA INC: $5,000 · Arts & CultureWISCONSIN HISTORICAL FOUNDATION INC: $5,000 · Arts & CultureGPS EDUCATION PARTNERS INC: $1,000 · Arts & Culture+2 more: $750 · Arts & CultureTHE RIVER FOOD PANTRY INC: $4,300 · Food & NutritionTHE COMMUNITY FOUNDATION OF WESTERN NORTH CAROLINA INC: $1,000 · PhilanthropyDOOR COUNTY COMMUNITY FOUNDATION INC: $1,000 · PhilanthropyTHE RIDGES SANCTUARY INC: $750 · Animals
Other$415,040Education$62,550Religion$57,000Arts & Culture$25,370Food & Nutrition$4,300Philanthropy$2,000Animals$750

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 budgetUNIVERSITY OF WISCONSIN FOUNDATION: $62,450 over 9y, 0.0% of budgetSIEBERT LUTHERAN FOUNDATION INC: $47,500 over 4y, 0.3% of budgetTIME OF GRACE MINISTRY: $41,000 over 7y, 0.2% of budgetUNITED WAY OF DANE COUNTY INC: $40,000 over 4y, 0.1% of budgetWISCONSIN LUTHERAN COLLEGE INC: $30,000 over 5y, 0.0% of budgetMADISON SYMPHONY ORCHESTRA INC: $13,620 over 7y, 0.1% of budgetACCESS COMMUNITY HEALTH CENTERS INC: $9,750 over 9y, 0.0% of budgetNATIONAL CHRISTIAN FOUNDATION -- WISCONSIN INC: $9,000 over 4y, 1.4% of budgetWISCONSIN EVANGELICAL LUTHERAN SYNOD KINGDOM WORKERS INC: $7,000 over 9y, 0.0% of budgetWISCONSIN YOUTH SYMPHONY ORCHESTRA INC: $5,000 over 1y, 0.1% of budgetWISCONSIN HISTORICAL FOUNDATION INC: $5,000 over 1y, 0.0% of budgetTHE RIVER FOOD PANTRY INC: $4,300 over 5y, 0.0% of budgetTHE COMMUNITY FOUNDATION OF WESTERN NORTH CAROLINA INC: $1,000 over 1y, 0.0% of budgetDOOR COUNTY COMMUNITY FOUNDATION INC: $1,000 over 2y, 0.0% of budgetGPS EDUCATION PARTNERS INC: $1,000 over 1y, 0.0% of budgetTHE RIDGES SANCTUARY INC: $750 over 3y, 0.0% of budgetWELS LUTHERANS FOR LIFE METRO MILWAUKEE INC: $500 over 1y, 0.1% of budgetBADGER HONOR FLIGHT INC: $500 over 1y, 0.1% of budgetLIGHTHOUSE YOUTH CENTER INC: $500 over 1y, 0.0% of budgetNORTHERN DOOR CHILDRENS CENTER INC: $500 over 1y, 0.0% of budgetDOMESTIC ABUSE INTERVENTION SERVICES INC: $250 over 1y, 0.0% of budgetEPHRAIM HISTORICAL FOUNDATION INC: $250 over 1y, 0.1% of budgetYALE NEW HAVEN HOSPITAL: $100 over 1y, 0.0% of budgetJUNIOR LEAGUE OF MADISON INC: $100 over 1y, 0.1% of budgetEPHRAIM MENS CLUB: $100 over 1y, 0.2% 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 UNIVERSITY OF WISCONSIN FOUNDATION ↗
  • Who funds SIEBERT LUTHERAN FOUNDATION INC ↗
  • Who funds TIME OF GRACE MINISTRY ↗
  • Who funds UNITED WAY OF DANE COUNTY INC ↗
  • Who funds WISCONSIN LUTHERAN COLLEGE INC ↗
  • Who funds MADISON SYMPHONY ORCHESTRA INC ↗
  • Who funds ACCESS COMMUNITY HEALTH CENTERS INC ↗
  • Who funds NATIONAL CHRISTIAN FOUNDATION -- WISCONSIN INC ↗
  • Who funds WISCONSIN EVANGELICAL LUTHERAN SYNOD KINGDOM WORKERS INC ↗
  • Who funds WISCONSIN YOUTH SYMPHONY ORCHESTRA INC ↗
  • Who funds WISCONSIN HISTORICAL FOUNDATION INC ↗
  • Who funds THE RIVER FOOD PANTRY INC ↗
  • Who funds THE COMMUNITY FOUNDATION OF WESTERN NORTH CAROLINA INC ↗
  • Who funds DOOR COUNTY COMMUNITY FOUNDATION INC ↗
  • Who funds GPS EDUCATION PARTNERS 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.

Green Bay Packers FoundationWI20.3× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Green Bay Packers Foundation · Robert a and Lynn I Doneff Foundation · Siebert Lutheran Foundation Inc · Madison Gas and Electric Foundation Inc · Ascendium Education Solutions Inc · Alliant Energy Foundation Inc · Baird Foundation Inc · Arvid W & Judy R Schwartz Family Foundation · Neumann Family Foundation Inc · Pleasant T Rowland Foundation Inc · Thrivent Financial for Lutherans · The Evjue Foundation Inc

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 John and Peggy Zimdars Foundation funds: left to right is the share of its income from government, bottom to top the share from John and Peggy Zimdars Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%0%1%3%5%funder's share of their income ↑0%6%13%19%25%share of the org’s income from government →median 0%
  • Yale New Haven Hospital: 0% of income from government
no gov moneyreceives it· size = income
0get no government money at all
6report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–25%
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 John and Peggy Zimdars Foundation?

Find your warmest path to John and Peggy Zimdars 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 70 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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