Nonprofits in Watertown, Massachusetts

Nonprofits in Watertown, Massachusetts. Browse 268 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. Sofias Angels Foundation Inc

    EIN 465562787 · Headquarters: Watertown, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Sons of Italy in America

    EIN 010720324 · Headquarters: Watertown, MA, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  3. Sourcework Ensemble

    EIN 833775132 · Headquarters: Watertown, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Spectacle Collective

    EIN 851112663 · Headquarters: WATERTOWN, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. St Joseph Hall Inc

    EIN 582673354 · Headquarters: WATERTOWN, MA, USA · Religion Related · Latest available filing year: 2012 · Primary form: IRS Form 990

  6. Star Academy Boston School Inc

    EIN 854016553 · Headquarters: WATERTOWN, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Survival Education Fund Inc

    EIN 042633748 · Headquarters: WATERTOWN, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Tanora Sambatra Inc

    EIN 900804254 · Headquarters: Watertown, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  9. Tekeyan Cultural Association Inc

    EIN 237055686 · Headquarters: Watertown, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Terra Help Corporation

    EIN 884237761 · Headquarters: Watertown, MA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. The 221B Foundation

    EIN 852835141 · Headquarters: Watertown, MA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. The Cooperative Charitable Trust

    EIN 222672819 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  13. The Dorothy and Charles Mosesian Center for the Arts Inc

    EIN 043430963 · Headquarters: WATERTOWN, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. The Family Cooperative Inc

    EIN 461859126 · Headquarters: WATERTOWN, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. The Henrietta & David Whitcomb Family FD

    EIN 137267896 · Headquarters: Watertown, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. The Marshall Home Fund Inc

    EIN 331122321 · Headquarters: WATERTOWN, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. The Oakley Country Club

    EIN 041683805 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. The Sonny Whooley Foundation Inc

    EIN 342029784 · Headquarters: Watertown, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. The Umberfield Zack Family Foundation

    EIN 562423531 · Headquarters: WATERTOWN, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  20. Theta Mu Housing Corporation C/o Andrew Geraghty

    EIN 260697310 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  21. Tir Na Nog Council

    EIN 923827799 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Toastmasters International

    EIN 901072533 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Together for Women International Inc

    EIN 841873847 · Headquarters: WATERTOWN, MA, US · Public & Societal Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  24. Trees for Watertown Inc

    EIN 042875922 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Tufts Health Care Institute Inc

    EIN 043289926 · Headquarters: WATERTOWN, MA, USA · Health Care · Latest available filing year: 2015 · Primary form: IRS Form 990

  26. United Cerebral Palsy of Metroboston Inc

    EIN 042672599 · Headquarters: WATERTOWN, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Unstoppable

    EIN 873354149 · Headquarters: Watertown, MA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  28. Us Acrobatic Rock-n-roll Confederation Inc

    EIN 800633042 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  29. Vocational Advancement Center Inc

    EIN 141628984 · Headquarters: WATERTOWN, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Walter E Fernald Association Inc

    EIN 043096389 · Headquarters: Watertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  31. Watertown Art Associaton Inc

    EIN 222559211 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. Watertown Autism Family Support Group

    EIN 472963178 · Headquarters: WATERTOWN, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Watertown Boys and Girls' Club Inc

    EIN 046134699 · Headquarters: WATERTOWN, MA, USA · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990

  34. Watertown Business Coalition

    EIN 844855267 · Headquarters: Watertown, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Watertown Cable Access Corporation

    EIN 202197937 · Headquarters: Watertown, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Watertown Charitable Council Inc 155Knights of Columbus

    EIN 203957457 · Headquarters: WATERTOWN, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  37. Watertown Children's Theatre Inc

    EIN 042602891 · Headquarters: WATERTOWN, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990

  38. Watertown Citizens for Peace Justice and the Environment Inc

    EIN 043247674 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Watertown Community Foundation Inc

    EIN 300229398 · Headquarters: WATERTOWN, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Watertown Community Gardens

    EIN 454005161 · Headquarters: Watertown, MA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Watertown Cooperative Nursery School Inc

    EIN 042160538 · Headquarters: Watertown, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Watertown Educational Foundation Inc

    EIN 043157246 · Headquarters: Watertown, MA, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  43. Watertown for All Ages Inc

    EIN 462378728 · Headquarters: Watertown, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Watertown Free Public Library Building Fund Inc

    EIN 651171650 · Headquarters: Watertown, MA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. Watertown High School Class of 2012 Incorporated

    EIN 822880622 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Watertown High School Ptso

    EIN 464888025 · Headquarters: Watertown, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Watertown Home for Old Folks

    EIN 042121655 · Headquarters: WATERTOWN, MA, USA · Housing & Shelter · Latest available filing year: 2010 · Primary form: IRS Form 990-PF

  48. Watertown Middle School Pto

    EIN 550822567 · Headquarters: Watertown, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Watertown Municipal Credit Union

    EIN 041950795 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  50. Watertown Police Employees Association Inc

    EIN 046063845 · Headquarters: Watertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Watertown Police Foundation Inc

    EIN 900965764 · Headquarters: Watertown, MA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Watertown Police Supervisors Association

    EIN 208448276 · Headquarters: Watertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  53. Watertown Sons and Daughters of Italy

    EIN 222510915 · Headquarters: Watertown, Massachusetts, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Watertown Teachers' Association Inc

    EIN 510171958 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Watertown Yacht Club

    EIN 113749156 · Headquarters: Watertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Watertown Youth Baseball NL

    EIN 412123582 · Headquarters: Watertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Watertown Youth Hockey League

    EIN 043099626 · Headquarters: Watertown, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Watertown Youth Soccer League Inc

    EIN 263472950 · Headquarters: Watertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Watertown-belmont Chamber of Commerce

    EIN 222140700 · Headquarters: WATERTOWN, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990

  60. Watertown-belmont Chamber of Commerce

    EIN 223022339 · Headquarters: WATERTOWN, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990

  61. Wellspring Center for Life Enhancement Inc

    EIN 043013729 · Headquarters: Watertown, MA, US · Human Services · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  62. Weston Dog Training Club Inc

    EIN 043215359 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  63. World in Watertown Inc

    EIN 832581081 · Headquarters: Watertown, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. Yerazart Inc

    EIN 201612098 · Headquarters: WATERTOWN, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. You Got Flowers Inc

    EIN 991648699 · Headquarters: Watertown, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Young Investigator Meeting Inc

    EIN 471333951 · Headquarters: Watertown, MA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Youth Dance Weekend

    EIN 365091932 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Zonta International

    EIN 042450000 · Headquarters: Watertown, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

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