Nonprofits in Williamsville, Illinois

Nonprofits in Williamsville, Illinois. Browse 11 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. American Federation of Teachers

    EIN 371105811 · Headquarters: Williamsville, IL, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  2. Friends of the Williamsville Public Library

    EIN 461060865 · Headquarters: Williamsville, IL, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Mid-state Sheet Metal and Air Conditioning Contractors Association

    EIN 370805031 · Headquarters: WILLIAMSVILLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. MidState MCA

    EIN 370906191 · Headquarters: Williamsville, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. National Society of the Children of the American Revolution

    EIN 900430879 · Headquarters: Williamsville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. North County Teen Court

    EIN 870763203 · Headquarters: Williamsville, IL, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Relevant Practical Ministry For Men

    EIN 271860209 · Headquarters: Williamsville, IL, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Williamsville Community Foundation

    EIN 371257840 · Headquarters: Williamsville, IL, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Williamsville Garden Club

    EIN 843880670 · Headquarters: Williamsville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Williamsville Jfl

    EIN 331115315 · Headquarters: Williamsville, IL, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Williamsville Volunteer Fire Department Nfp

    EIN 270358465 · Headquarters: WILLIAMSVILLE, IL, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2020 · Primary form: IRS Form 990-N