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Wisconsin · 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 FY2025(still arriving)
21
Grants FY2025
15
Organizations funded FY2024
20%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,000
Largest grant, FY2025
$12,500
Organizations funded a year
15 to 21
FY2018 to FY2024
States reached, FY2025
3
Total assets, FY2025
$129k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 20% of the organizations John and Peggy Zimdars Foundation funded were first-time grantees, receiving 12% of its grant dollars.

New vs renewed · share of each year

In FY2024, 88% of grant dollars renewed an existing relationship; $6k went to new ones.

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

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

’18’19’20’21’22’23’24
Arts & CultureHuman ServicesFood & NutritionAnimalsYouth DevelopmentEducationOther
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 arriving20$43k40%
FY202415$54k20%
FY202316$68k31%
FY202219$43k26%
FY202120$46k45%
FY202021$95k38%
FY201917$48k24%
FY201817$52k47%
100% 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

Top grantees

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

Show all 34 grantees
All grantees of John and Peggy Zimdars Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Wisconsin Lutheran Chapel$211,4509n/a
University of Wisconsin Foundation$62,45090%
Siebert Lutheran Foundation Inc$47,50040%
Time of Grace Ministry$41,00070%
United Way of Dane County Inc$40,00040%
Wisconsin Lutheran College Inc$30,00050%
Madison Symphony Orchestra Inc$13,62070%
Access Community Health Centers Inc$9,75090%
Wisconsin Evangelical Lutheran Synod Kingdom Workers Inc$7,00090%
Wisconsin Youth Symphony Orchestra Inc$5,00010%
Wisconsin Historical Foundation Inc$5,00010%
The River Food Pantry Inc$4,30050%
Wisconsin Evangelical Lutheran Synod$4,0003n/a
St Andrew Lutheran Church$2,7505n/a
Holy Cross Lutheran Church$2,5001n/a
Christ Lutheran Church$1,5001n/a
Fund for Campus Servant Leadership Inc$1,4254n/a
Zion Lutheran Church$1,0001n/a
Gps Education Partners Inc$1,00010%
The Ridges Sanctuary Inc$75030%
St Johns Lutheran Church$5001n/a
Wels Lutherans for Life Metro Milwaukee Inc$50010%
Badger Honor Flight Inc$50010%
Madison Public Art Project Inc$5001n/a
Lighthouse Youth Center Inc$50010%
First Immanuel Lutheran Church$5001n/a
Northern Door Childrens Center Inc$50010%
Domestic Abuse Intervention Services Inc$25010%
Lutheran Womens Missionary Society$2501n/a
Ephraim Historical Foundation Inc$25010%
Philharmonic Chorus of Madison$1001n/a
Yale New Haven Hospital$10010%
Junior League of Madison Inc$10010%
Ephraim Mens Club$10010%

What it could do for these grantees

Plus 33 recipients with no EIN on record ($59k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget John and Peggy Zimdars Foundation supplied at peak.

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 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 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

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 22.

Nonprofits that may fit its grantmaking

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.

Compare John and Peggy Zimdars Foundation with peer funders

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.

About John and Peggy Zimdars Foundation

How much does John and Peggy Zimdars Foundation give?
John and Peggy Zimdars Foundation reported 21 grants totaling $44,350 in its FY2025 IRS filing. It funded between 15 and 21 organizations a year over FY2018 to FY2024.
What does John and Peggy Zimdars Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Religion (59%), Education (22%), Philanthropy (8%).
Who are John and Peggy Zimdars Foundation's largest grantees?
By total granted over FY2017 to FY2025: Wisconsin Lutheran Chapel ($211k), University of Wisconsin Foundation ($62k), Siebert Lutheran Foundation Inc ($48k).
Does John and Peggy Zimdars Foundation fund new organizations?
In FY2024, 20% of the organizations it funded were first-time grantees.
Does John and Peggy Zimdars Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as John and Peggy Zimdars Foundation?
Its strongest co-funders, measured against what their size predicts, include Green Bay Packers Foundation, Robert a and Lynn I Doneff Foundation, Siebert Lutheran Foundation Inc.
Where is John and Peggy Zimdars Foundation based?
John and Peggy Zimdars Foundation is based in WI.

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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