GrantAuthority

Grantmaking foundations in Marathon, WI

6 grantmaking foundations in Marathon, Wisconsin, ranked by recent giving reported to the IRS (about $11M combined).

Top foundations by giving

  1. Sonnentag Foundation Ltd
    Marathon, WI
    $6.4M (2025)
  2. Raymond and Marie Goldbach Foundation Inc
    Marathon, WI · Philanthropy, Voluntarism and Grantmaking Foundations
    $3.2M (2024)
  3. Sonnentag American Foundation Inc
    Marathon, WI · Philanthropy, Voluntarism and Grantmaking Foundations
    $910K (2024)
  4. Marth Foundtion Ltd
    Marathon, WI
    $75K (2026)
  5. Mac Raiders Inc
    Marathon, WI · Mutual and Membership Benefit
    $32K (2025)
  6. Robbins Foundation
    Marathon, WI · Education
    $8K (2025)

Find the right funders faster. Filter every foundation by location, cause, giving size and openness, and see full grantee histories, with a free GrantAuthority account.

Create free account

Causes in Wisconsin