Nonprofits in Windsor, Massachusetts

Nonprofits in Windsor, Massachusetts. Browse 5 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. Friends of Windsor Inc

    EIN 222570391 · Headquarters: WINDSOR, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. International Childrens Digital Library Foundation

    EIN 870767407 · Headquarters: Windsor, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Massachusetts Teachers Association

    EIN 042667761 · Headquarters: Windsor, MA, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Tamarack Hollow Nature & Cultural Center

    EIN 463157103 · Headquarters: WINDSOR, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Windsor Volunteer Firemans Association Inc

    EIN 371730722 · Headquarters: Windsor, MA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N