Nonprofits in Holliston, Massachusetts

Nonprofits in Holliston, Massachusetts. Browse 111 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. The Roberta Thall Charitable Trust

    EIN 043563101 · Headquarters: Holliston, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990-PF

  2. The Timothy O'connell Foundation

    EIN 262636160 · Headquarters: HOLLISTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Therapeutic Riding at Breezy Hill Inc

    EIN 203072066 · Headquarters: Holliston, MA, USA · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  4. Training Waves

    EIN 474623726 · Headquarters: Holliston, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  5. University of Massachusetts

    EIN 464484892 · Headquarters: Holliston, MA, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  6. Unravel Healthcare Alliance Inc

    EIN 333659832 · Headquarters: HOLLISTON, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Warren Benevolent Fund Inc

    EIN 042309470 · Headquarters: HOLLISTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  8. Waushakum Live Steamers Inc

    EIN 222686622 · Headquarters: Holliston, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  9. Wayne J Griffin Electric Inc Welfare Benefit Plan Trust

    EIN 846474734 · Headquarters: HOLLISTON, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. We Are Allies Inc

    EIN 814042600 · Headquarters: Holliston, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  11. WSK

    EIN 932512577 · Headquarters: HOLLISTON, MA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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