Sonnentag Foundation Ltd | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like Sonnentag Foundation Ltd. Data shown is extracted from Form 990-PF filings.

EIN: 39-1597420

Foundation Overview

Based in Marathon, WI, Sonnentag Foundation Ltd has awarded 9 grants totaling $34,602,351 to organizations in Wisconsin. Individual grants range from $653,714 to $7,148,102, with a median award of $2,922,435.

Latest Tax Year
2025
Total Giving (all years)
$34,602,351
Total Assets
$45,128,931
Median Grant (all grants)
$2,922,435

Latest Form 990-PF Snapshot

Total Grants
1
Median Grant
$6,371,389
% Median Grant Growth
+441% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: May 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Limited Sample: 0%

1 total grant. Insufficient data for reliable pattern analysis. Foundation may be highly selective or recently established.

Geographic Focus
Wisconsin

100% of all grants are concentrated in Wisconsin, demonstrating highly focused geographic giving. This foundation prioritizes deep community impact in its primary service area. Within Wisconsin, funding concentrates in Marathon (56%), Various (44%).

Funding Trajectory
+118%

Strong 118% growth in annual giving over 6 years indicates expanding philanthropic capacity and increasing opportunities for grant seekers. This upward trajectory suggests growing foundation resources and commitment.

Program Areas
Education + General Purposes

Dual focus on education (67%) and general purposes, indicating strategic concentration in complementary program areas.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into Sonnentag Foundation Ltd's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
All-see Attached $6,371,389 Marathon, WI, US Charitable Donations 2025
All - See Attached $1,178,234 Marathon, WI, US Charitable Donations 2023
All - See Attached $1,178,234 Marathon, WI, US Charitable Donations 2023
All - See Attached $7,148,102 Various, WI, US Scholarships And Charitable Donations 2022
All - See Attached $7,148,102 Various, WI, US Scholarships And Charitable Donations 2022
All - See Attached $7,148,102 Various, WI, US Scholarships And Charitable Donations 2022
All - See Attached $653,714 Marathon, WI, US Scholarships And Charitable Donations 2021
All - See Attached $854,039 Marathon, WI, US Scholarships And Charitable Donations 2020
All - See Attached $2,922,435 Various, WI, US Scholarships And Charitable Donations 2019

Foundations Similar to Sonnentag Foundation Ltd

Discover 5 foundations with comparable assets ($33,165,346-$39,849,392), similar grant patterns, and geographic focus in WI that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 39-6516314 | 9 grants awarded
$39,849,392
(≈ Similar)
$2,050,000
median grant
Milwaukee, WI
Same state
94%
Excellent match

EIN: 39-6516313 | 10 grants awarded
$39,773,121
(≈ Similar)
$1,900,000
median grant
Milwaukee, WI
Same state
94%
Excellent match

EIN: 39-6075016 | 7 grants awarded
$36,240,533
(≈ Similar)
$1,708,123
median grant
Green Bay, WI
Same state
90%
Excellent match

EIN: 23-7129606 | 14 grants awarded
$35,365,899
(↓ Smaller)
$1,565,783
median grant
Madison, WI
Same state
89%
Excellent match

EIN: 85-2532503 | 12 grants awarded
$33,165,346
(↓ Smaller)
$1,618,462
median grant
Milwaukee, WI
Same state
87%
Excellent match

Contact Information

Official contact details for Sonnentag Foundation Ltd as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 39-1597420
Website http://www.guidestar.com
Address PO BOX 100 Marathon, WI 54448-0000

Key People (3)

Board members, trustees, and key staff who oversee Sonnentag Foundation Ltd's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

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Vice President Part Time [object Object]
Director Part Time [object Object]

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for Sonnentag Foundation Ltd is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated May 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.