Nonprofits in Mason, Wisconsin

Nonprofits in Mason, Wisconsin. Browse 8 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. 361St Fighter Group

    EIN 232642347 · Headquarters: Mason, WI, US · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  2. American Federation of State County & Municipal Employees

    EIN 113774492 · Headquarters: Mason, WI, US · Health Care · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  3. Bay Area Karate Club Inc

    EIN 453345664 · Headquarters: Mason, WI, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Benevolent Patriotic Order of Does of the United States of America

    EIN 237641716 · Headquarters: Mason, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Friends of the 361St Fighter Group

    EIN 300791174 · Headquarters: Mason, WI, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  6. Mason Area Historical Society Inc

    EIN 453749504 · Headquarters: Mason, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Mason Cemetery Incorporated

    EIN 834457142 · Headquarters: Mason, WI, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Northern Storm Vbc

    EIN 873973807 · Headquarters: Mason, WI, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N