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Form 990-PFTax year 2025EIN 46-1632345

Maas Foundation Inc

A private foundation in Pewaukee, WI. Its return for tax year 2025 lists 38 grants and $135,550 paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2025

    $135,550

    Grants listed
    38
    Assets, end of year
    $1,424,250

  • Tax year 2024

    $100,300

    Grants listed
    27
    Assets, end of year
    $1,480,810

  • Tax year 2023

    $82,000

    Grants listed
    26
    Assets, end of year
    $1,522,342

  • Tax year 2022

    $90,500

    Grants listed
    25
    Assets, end of year
    $1,567,784

  • Tax year 2021

    $70,700

    Grants listed
    17
    Assets, end of year
    $1,625,578

  • Tax year 2020

    $123,101

    Grants listed
    4
    Assets, end of year
    $8,254

  • Tax year 2019

    $42,750

    Grants listed
    4
    Assets, end of year
    $47,745

  • Tax year 2018

    $3,500

    Grants listed
    2
    Assets, end of year
    $92,117

Grants paid in 2025

38 grants, largest first

As listed on the return.

  1. University of Wisconsin FoundationMilwaukee, WI

    Sonja j maas scholarship - education fund

    $20,250
  2. Los Angeles Philharmonic AssociationLos Angeles, CA

    To further organization's charitable purposes

    $10,000
  3. Florida Golf Coast University FoundationFort Myers, FL

    To advance fgcu and its students institution, philanthropy, and needs

    $6,000
  4. Lee Memorial Health System Foundation IncFort Myers, FL

    To further organization's charitable purposes

    $6,000
  5. Milwaukee Repertory TheaterMilwaukee, WI

    To further organization's charitable purposes

    $6,000
  6. Colonial Williamsburg FoundationWilliamsburg, VA

    To further organizations charitable purposes

    $5,000
  7. KCRWSanta Monica, CA

    To further organization's charitable purposes

    $5,000
  8. MedshareDecatur, GA

    To further organization's charitable purposes

    $5,000
  9. Noble Network Charter SchoolsChicago, IL

    To further organization's charitable purposes

    $5,000
  10. American ForestsWashington, DC

    To further organization's charitable purposes

    $5,000
  11. Metropolitan Family ServicesMerrionette Park, IL

    To further organization's charitable purposes

    $5,000
  12. National Casagal Association for ChildrenSeattle, WA

    To further organization's charitable purposes

    $5,000
  13. Arkansas Childrens HospitalLittle Rock, AR

    To further organization's charitable purposes

    $5,000
  14. TreepeopleBeverly Hills, CA

    To further organization's charitable purposes

    $5,000
  15. Love & Love Tennis FoundationPalm Desert, CA

    To further organization's charitable purposes

    $5,000
  16. Madison Children's MuseumMadison, WI

    To further organization's charitable purposes

    $5,000
  17. Harry Chapin Food Bank of Southwest FloridaFort Myers, FL

    Food distribution to needy families in SW florida

    $4,000
  18. Clinic for the Rehabilitation of WildlifeSanibel, FL

    To further organization's charitable purposes

    $4,000
  19. Girls on the Run of New OrleansNew Orleans, LA

    To further organization's charitable purposes

    $3,000
  20. Waukesha County Community FoundationWaukesha, WI

    To further organization's charitable purposes

    $2,500
  21. Children's Scholarship FundNew York, NY

    To further organization's charitable purposes

    $2,500
  22. Reach RescueMundelein, IL

    To further organization's charitable purposes

    $2,500
  23. Breakthrough T1DNew York, NY

    To further organization's charitable purposes

    $1,500
  24. Role Model Movement Inc (my Block My Hood My City)Chicago, IL

    Help underprivileged kids lower gun violence and have educational/good experiences

    $1,500
  25. Waukesha Free Clinic at Caroll UniversityWaukesha, WI

    Support health and well-being of uninsured, underinsured, low-income people

    $1,500
  26. White House Historical FoundationWashington, DC

    To educate the public about the white house and its history

    $1,500
  27. Heights Foundation IncFt Myers, FL

    Provide educational and social support to underprivileged families

    $1,000
  28. The Book Love FoundationNorth Conway, NH

    Provides classroom libraries to public school teachers who inspire a love of reading

    $1,000
  29. Oconomowoc Food PantryOconomowoc, WI

    To further organization's charitable purposes

    $1,000
  30. Super Scratch FoundationLafayette Hill, PA

    To further organization's charitable purposes

    $1,000
  31. Irwin A and Robert D Goodman Community CenterMadison, WI

    Provide youth programs, meals, event spaces, for local community

    $750
  32. Greater Chicago Food DepositoryChicago, IL

    Support training programs for unemployed or underemployed adults; outreach programs

    $500
  33. Paws ChicagoChicago, IL

    To further organization's charitable purposes

    $500
  34. Lincoln Park ZooChicago, IL

    To further organization's charitable purposes

    $500
  35. Lyric Opera of ChicagoChicago, IL

    To further organization's charitable purposes

    $500
  36. Phet Interactive Simulations (university of Colorado)Boulder, CO

    To further organization's charitable purposes

    $500
  37. University of Wisconsin-MadisonMadison, WI

    Terra fund for geoscience

    $300
  38. The Against Malaria FoundationKansas City, MO

    Education and prevention/mitigation

    $250

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Arts and culture6 grants $27,50034% of the total
  2. Environment2 grants $10,00012% of the total
  3. Philanthropy and grantmaking2 grants $8,50010% of the total
  4. Youth development2 grants $8,00010% of the total
  5. Animals3 grants $7,0009% of the total
  6. Health3 grants $6,7508% of the total
  7. 4 other causes6 grants $13,75017% of the total

By State

Grants to organizations with a US address, latest year.

  1. Wisconsin8 grants $37,300
  2. California4 grants $25,000
  3. Florida5 grants $21,000
  4. Illinois8 grants $16,000
  5. District of Columbia2 grants $6,500
  6. Arkansas1 grant $5,000
  7. Georgia1 grant $5,000
  8. Virginia1 grant $5,000
  9. Washington1 grant $5,000
  10. New York2 grants $4,000

Officers, directors and trustees

4 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Thomas E MaasPRESIDENT/DIRECTOR Hours 0.2Pay $0
  • Duane A MaasDIRECTOR Hours 0.2Pay $0
  • Thomas J MaasSEC/TREAS Hours 0.2Pay $0
  • Jon K MaasDIRECTOR Hours 0.2Pay $0

The return

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