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Wisconsin · Private foundation

Sonnentag Foundation Ltd

Its FY2025 filing reports that it accepted unsolicited grant applications.

$1.2M
Granted FY2023
18
Grants FY2023
18
Organizations funded FY2023
83%
First-time grantees FY2023
Read the full brief
Median grant, FY2023
$1,500
Largest grant, FY2023
$1,000,000
Organizations funded a year
18 to 96
FY2019 to FY2023
Total assets, FY2023
$43M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 83% of the organizations Sonnentag Foundation Ltd funded were first-time grantees, receiving 99% of its grant dollars.

New vs renewed · share of each year

In FY2023, 1% of grant dollars renewed an existing relationship; $1.1M went to new ones.

50%100%’21’23
RenewedFirst-time
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
FY202318$1.2M83%
FY202171$389k70%
FY201996$1.5Mn/a
91% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2025.

Education$8.0MPhilanthropy$6.4MEnvironment$1.0MRecreation & Sports$187kHuman Services$175kHealth$166kReligion$100kYouth Development$97kOther$0

Top grantees

Largest grants in FY2023.

UW-Eau Claire Foundation$1,000,000
Marathon City Ballpark Project$100,000
First Presbyterian Church of Mount Dora$15,000
St. Matthews Lutheran Church$13,000
Florida Lakes Symphony Orchestra$10,000
Sonnentag American Foundation$10,000
Marathon School District$4,982
Easter Seals of WI$2,500
Marathon Youth Wrestling$1,500
Mount Dora Yacht Club$1,100
Marshfield Area Community FDN$1,000
Wausau Dance Theatre$1,000
Mount Dora Elementary School$750
Partnership for Progressive Ag.$500
White Lake Fire Department$500

Compare Sonnentag Foundation Ltd with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Sonnentag Foundation Ltd?

Find your warmest path to Sonnentag Foundation Ltd 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 Sonnentag Foundation Ltd

How much does Sonnentag Foundation Ltd give?
Sonnentag Foundation Ltd reported 18 grants totaling $1,178,234 in its FY2023 IRS filing. It funded between 18 and 96 organizations a year over FY2019 to FY2023.
What does Sonnentag Foundation Ltd fund?
By grant dollars over FY2019 to FY2023, its largest causes are Education (28%), Philanthropy (22%), Environment (4%).
Does Sonnentag Foundation Ltd fund new organizations?
In FY2023, 83% of the organizations it funded were first-time grantees.
Does Sonnentag Foundation Ltd accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Where is Sonnentag Foundation Ltd based?
Sonnentag Foundation Ltd 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 161 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 2023, released 2023. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Possibly out of date. A more recent filing (FY2025) is on record and reports $6.4M of grant expense with no grantee named in the published copy. A private foundation itemizes every grant it makes, so a return carrying none has filed its list as an attachment that the public copy does not include. The figures above are therefore from FY2023, the most recent year this funder’s grantee list reached the public record.

Source object · view filing

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