Foundations that fund organizations in Marathon, Wisconsin
Worked out from where the grants went, not where the foundations sit.
Funding landscape for Marathon nonprofits
9 private foundations gave $10M to Marathon organizations in their latest filings; 4 of the 9 that say either way accept applications.
11 grants in total, with a typical foundation's median grant to Marathon around $75K. 9 of these funders are based in Wisconsin; the rest give here from elsewhere.
- Foundations giving here
- 9
- Accept applications
- 4
- of 9 that state a policy
- Dollars to Marathon
- $10M
- latest filings
- Grants
- 11
- Typical median grant
- $75K
- Based in WI
- 100%
- of funders listed
Funders, by dollars given to Marathon organizations
| Foundation | Based in | Grants here | Dollars here | Median | Accepts applications | Typical purposes |
|---|---|---|---|---|---|---|
| Sonnentag Foundation Ltd | Marathon, WI | 1 | $6.4M | $6.4M | Yes | Charitable donations |
| Raymond & Marie Goldbach Foundation Inc | Marathon, WI | 1 | $3.2M | $3.2M | Preselected only | See attached |
| Raymond a & Amella P Beilke Trust for St | Wausau, WI | 1 | $225K | $225K | Preselected only | Operations |
| Raymond a & Amella P Beilke Trust for St | Wausau, WI | 1 | $148K | $148K | Preselected only | Operations |
| Marth Foundation Ltd | Marathon, WI | 1 | $75K | $75K | Yes | General support |
| Two Eagles Foundation Inc | Tomahawk, WI | 1 | $38K | $38K | Preselected only | Tuition assistance |
| Anthony P Brzezinski Foundation Inc | Mosinee, WI | 1 | $10K | $10K | Preselected only | Stained glass window restoration |
| Sonnentag American Foundation Inc | Marathon, WI | 3 | $1,805 | $500 | Yes | Charitable |
| McTl Charities Inc | Schofield, WI | 1 | $422 | $422 | Yes | Medical Bills |
Source: IRS Form 990-PF Part XV, latest electronic return per foundation (2026-10-28). "Accepts applications" reflects the foundation's own checkbox on Part XV line 2. Grants to individuals excluded.
Common questions
Which foundations give to nonprofits in Marathon, Wisconsin?
Sonnentag Foundation Ltd, Raymond & Marie Goldbach Foundation Inc, Raymond a & Amella P Beilke Trust for St, Raymond a & Amella P Beilke Trust for St, Marth Foundation Ltd and 4 others reported grants to Marathon organizations on their latest Form 990-PF.
How do I approach a foundation that doesn't accept applications?
A foundation that checks "contributes only to preselected organizations" on its 990-PF won't review a cold proposal. Look at who it funds, find a shared board member, grantee or advisor, and ask for an introduction. Foundations that accept applications usually list a contact and deadlines in Part XV; we show that text on each foundation's page.
Is this list complete?
No. It covers private foundations (Form 990-PF filers) whose latest electronic return lists at least one grant to an organization in Marathon. Community foundations and corporate giving programs file different forms and are not included yet.