Sonnentag Foundation
At a glance
Key takeaways
- Sonnentag Foundation funds educational awards, local scholarships, religious needs and non-profit needs, so a request that sits within one of these themes is the best fit.
- It paid $6,371,389 in grants, but the filing does not state a grant range, so there is no clear benchmark for how large a request should be.
- Applications are the stated method of approach, and the filing gives no deadlines; the filing does not otherwise indicate how competitive or relationship-led the process is.
- It does not specify a geographic focus or whether each funding category is open to organisations or individuals, so these points are worth confirming directly before applying.
- No eligibility exclusions are stated in the filing, so there is nothing here to suggest any type of applicant should not approach the foundation.
Overview
Sonnentag Foundation is a US private foundation based in Marathon, WI.
What they fund
Profile based on the foundation's IRS Form 990-PF filings (TY2025, TY2024, TY2023) only: no website or other web source for the foundation was found. Every statement is checked against the filings. Sources read on 7 October 2026.
Priority Areas
The Sonnentag Foundation describes its awards in terms of educational awards, local scholarships, religious needs and non-profit needs. It asks applicants to submit applications and lists no submission deadlines. The filing does not specify whether each category is open to organisations or individuals, what non-profit needs means in practice, or a geographic area for grantmaking. Its return records charitable donations but names no recipients in its grant rows; the available record therefore does not show which organisations receive support or what forms of support predominate.
Themes
- Education and scholarships
- Religious needs
How to apply
The filing specifies applications as the required form and information.
Officers and directors
- Bill Sonnentag — Director Part Time
- Carolyn Sonnentag — Vice President Part Time
- John Sonnentag — President
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2023 tax year | $1,199,060 | $1,178,234 | $38,862,209 | Filing for 2023 tax year |
| 2024 tax year | $9,553,487 | $9,431,634 | $44,103,939 | Filing for 2024 tax year |
| 2025 tax year | $6,470,668 | $6,371,389 | $45,128,931 | Filing for 2025 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
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At a glance
Applying to Sonnentag Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (715) 848-1365
- Marathon, WI
Applying to Sonnentag Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (715) 848-1365
- Marathon, WI