Nonprofits in Waltham, Massachusetts

Nonprofits in Waltham, Massachusetts. Browse 565 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. Silver Lining Mentoring Inc

    EIN 043575764 · Headquarters: WALTHAM, MA, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. Singing Field Foundation Inc C/o Kahn Litwin Renza and Co Ltd

    EIN 043425998 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  3. Small Can Be Big Inc

    EIN 463296105 · Headquarters: WALTHAM, MA, USA · Human Services · Latest available filing year: 2016 · Primary form: IRS Form 990

  4. Smaller Business Association of New England Inc

    EIN 042029078 · Headquarters: WALTHAM, MA, USA · Education · Latest available filing year: 2017 · Primary form: IRS Form 990

  5. Smarter Sports Association Inc

    EIN 462923980 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  6. Society of Saint Vincent De Paul in the Archdiocese of Boston

    EIN 273629632 · Headquarters: WALTHAM, MA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Society of Saint Vincent De Paul in the Archdiocese of Boston

    EIN 273629893 · Headquarters: WALTHAM, MA, US · Religion Related · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  8. Society of Saint Vincent De Paul in the Archdiocese of Boston

    EIN 273630089 · Headquarters: WALTHAM, MA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Society of St Vincent De Paul St Mary Conference

    EIN 800665496 · Headquarters: WALTHAM, MA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Sons of Italy in America 648 Dante Aligheri

    EIN 042884648 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Sons of Italy in America Grand Lodge of MA - General Fund

    EIN 041850950 · Headquarters: Waltham, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Soviet Jewry Movement Archives Project Inc

    EIN 882912629 · Headquarters: WALTHAM, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Spark Photonics Foundation Inc

    EIN 833595839 · Headquarters: WALTHAM, MA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Spri Inc

    EIN 363169484 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Springfield Chamber Players Inc

    EIN 871708957 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Springwell Inc

    EIN 042616064 · Headquarters: WALTHAM, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Ssali Foundation Inc

    EIN 882859781 · Headquarters: WALTHAM, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. St Paul's Anglican Church Waltham Inc

    EIN 814279549 · Headquarters: WALTHAM, MA, US · Religion Related · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  19. Stem Inspiration Organization Inc

    EIN 830734009 · Headquarters: Waltham, MA, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  20. Stephen & Karla Forgiel Charitable Foundation

    EIN 464911066 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  21. Stephen Foundation Inc

    EIN 812052160 · Headquarters: WALTHAM, MA, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Stories with Purpose Inc

    EIN 852009320 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Suffolk District Medical Society

    EIN 042483879 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Sustainable Healthcare for Haiti Inc

    EIN 453195303 · Headquarters: Waltham, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Synthetic Biology Industry Association Inc

    EIN 271740985 · Headquarters: WALTHAM, MA, USA · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  26. Tabitha Aid International Inc

    EIN 853738057 · Headquarters: WALTHAM, MA, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Tcc Cat Rescue Inc

    EIN 043518268 · Headquarters: WALTHAM, MA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Techsandbox Inc C/o Morse Barnes-brown Pendleton

    EIN 461452708 · Headquarters: WALTHAM, MA, USA · Science & Technology · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  29. Telna Foundation for Albinos

    EIN 454852325 · Headquarters: Waltham, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. The 128 West Transportation Councilinc

    EIN 042969207 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. The 7Uice Foundation Inc

    EIN 843380256 · Headquarters: WALTHAM, MA, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. The a & a Fund

    EIN 043127721 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  33. The Age Friendly Foundation Inc

    EIN 833954823 · Headquarters: WALTHAM, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. The Bird Precision Charitable Foundation

    EIN 046046637 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  35. The Care Institute

    EIN 821921409 · Headquarters: WALTHAM, MA, USA · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  36. The Carousel School Inc

    EIN 042373760 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  37. The Conversation Us Inc

    EIN 460906774 · Headquarters: WALTHAM, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. The Dassault Systemes Us Foundation

    EIN 813478010 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. The Donald & Priscilla Felt Charitable Foundation

    EIN 276506223 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  40. The Emmaus Ministry for Grieving Parents Inc

    EIN 460590070 · Headquarters: WALTHAM, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. The Garden Club Federation of Massachusetts Inc

    EIN 042183225 · Headquarters: WALTHAM, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. The Information Roads Foundation Inc

    EIN 043254971 · Headquarters: WALTHAM, MA, USA · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-PF

  43. The John Butler Mulliken Foundation Inc

    EIN 043424901 · Headquarters: WALTHAM, MA, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  44. The Jw Foundation Inc

    EIN 261837612 · Headquarters: WALTHAM, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  45. The Little Souls of the Ihm Inc

    EIN 043050338 · Headquarters: WALTHAM, MA, USA · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990

  46. The Lumen Academy Inc

    EIN 991333584 · Headquarters: WALTHAM, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. The Martha Hw Crowninshield Charitable Foundation

    EIN 043344991 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  48. The Michael & Helen Schaffer Foundation C/o Foster Dykema Cabot & Partners Llc

    EIN 020534424 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  49. The MillerTracy Children's Foundation Inc

    EIN 043563042 · Headquarters: Waltham, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. The Pacer Foundation

    EIN 770233360 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  51. The Saint Mary of Carmen Society Inc

    EIN 204035392 · Headquarters: WALTHAM, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. The Samuel Hunington Fund Inc

    EIN 043021374 · Headquarters: Waltham, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. The Scott E Chapman Foundation Inc

    EIN 020766436 · Headquarters: WALTHAM, MA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  54. The Single Step Foundation

    EIN 047025935 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  55. The Solomon Family Foundation C/o Dsf Group

    EIN 203124600 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  56. The Tillerman Foundation Inc

    EIN 882630233 · Headquarters: WALTHAM, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. The Townscape Institute Inc

    EIN 042680639 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  58. The Turpin-allebrand Family Charitable Foundation

    EIN 954419892 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. Thread of Hope Inc

    EIN 463914375 · Headquarters: WALTHAM, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. Toastmasters International

    EIN 020582127 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Toastmasters International

    EIN 510194941 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Toastmasters International

    EIN 546070475 · Headquarters: Waltham, MA, US · Public & Societal Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  63. Toastmasters International

    EIN 900490163 · Headquarters: Waltham, MA, US · Public & Societal Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  64. Toastmasters International

    EIN 900501603 · Headquarters: Waltham, MA, US · Public & Societal Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  65. Toastmasters International

    EIN 900531375 · Headquarters: Waltham, MA, US · Public & Societal Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  66. Toastmasters International

    EIN 900531395 · Headquarters: Waltham, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  67. Toastmasters International

    EIN 900539468 · Headquarters: Waltham, MA, US · Public & Societal Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  68. Toastmasters International

    EIN 900765334 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Toastmasters International

    EIN 900898534 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Toastmasters International

    EIN 900904446 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Toastmasters International

    EIN 901113988 · Headquarters: Waltham, MA, US · Public & Societal Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  72. Toastmasters International

    EIN 901133698 · Headquarters: Waltham, MA, US · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  73. Toastmasters International

    EIN 901504046 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. Trillion Tree Trust Inc

    EIN 844841493 · Headquarters: Waltham, MA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Two Ten Footwear Foundation Inc

    EIN 222579809 · Headquarters: WALTHAM, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. U-heal Shelter and Sanctuary

    EIN 900592335 · Headquarters: Waltham, MA, US · Religion Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  77. Uganda Boston Community Association Inc

    EIN 463040081 · Headquarters: WALTHAM, MA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  78. Uganda Catholic Community in Archdiocese of Boston

    EIN 883461744 · Headquarters: Waltham, MA, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Uganda Muslim Youths of Boston

    EIN 874318938 · Headquarters: Waltham, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. United States Bowling Congress

    EIN 841709914 · Headquarters: Waltham, MA, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  81. United States Diving Inc

    EIN 311163822 · Headquarters: Waltham, MA, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  82. Universidad Simon Bolivar Alumni Association of America Inc

    EIN 475525567 · Headquarters: Waltham, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. University of Massachusetts

    EIN 043145134 · Headquarters: Waltham, MA, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  84. University of Massachusetts

    EIN 204775219 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  85. University of Massachusetts

    EIN 260085188 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. University of Massachusetts

    EIN 455267464 · Headquarters: Waltham, MA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  87. University of Massachusetts

    EIN 455353885 · Headquarters: Waltham, MA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  88. University of Massachusetts

    EIN 463736638 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  89. University of Massachusetts

    EIN 464112758 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  90. University of Massachusetts

    EIN 464497532 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  91. University of Massachusetts

    EIN 464642046 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  92. University of Massachusetts

    EIN 465026288 · Headquarters: Waltham, MA, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  93. University of Massachusetts

    EIN 473089427 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  94. University of Massachusetts

    EIN 475544162 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  95. University of Massachusetts

    EIN 510670276 · Headquarters: Waltham, MA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  96. University of Massachusetts

    EIN 812739146 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  97. University of Massachusetts

    EIN 931858892 · Headquarters: Waltham, MA, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Veterans of Foreign Wars of the Usinc

    EIN 042685025 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Vinnie Cirino Memorial Scholarship

    EIN 816979450 · Headquarters: Waltham, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. Vocal Arts Collaborative Inc

    EIN 311638507 · Headquarters: Waltham, MA, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

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