Nonprofits in Cambridge, Massachusetts

Nonprofits in Cambridge, Massachusetts. Browse 1,541 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. Harvard Undergraduate Women in Computer Science Inc

    EIN 853858397 · Headquarters: CAMBRIDGE, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Harvard University

    EIN 042103580 · Headquarters: CAMBRIDGE, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Harvard University Band Inc

    EIN 043009105 · Headquarters: CAMBRIDGE, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Harvard University Security Parking & Museum Guards Union

    EIN 043340756 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  5. Harvard Womens Leadership Project Alumni Network Inc

    EIN 800299327 · Headquarters: Cambridge, MA, US · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  6. Harvard World Model United Nations

    EIN 043135516 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Harvard Yard Child Care Center Inc

    EIN 331211523 · Headquarters: CAMBRIDGE, MA, USA · Human Services · Latest available filing year: 2015 · Primary form: IRS Form 990

  8. Harvard Yearbook Publications

    EIN 046042150 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Harvard Yearbook Publications Trust Fund

    EIN 043258492 · Headquarters: CAMBRIDGE, MA, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  10. Harvard-radcliffe Collegium Musicum Foundation Inc

    EIN 042648126 · Headquarters: CAMBRIDGE, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Harvard-Radcliffe Collegium Musicum Inc

    EIN 042587675 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Harvard-radcliffe Dramatic Club

    EIN 832800922 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Harvard-Radcliffe Gilbert & Sullivan Players

    EIN 042645068 · Headquarters: Cambridge, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  14. Harvard-radcliffe Orchestra Inc

    EIN 510201171 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Harvard-radcliffe Summer Theater

    EIN 043513605 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. Harvard-yenching Institute

    EIN 042062394 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Haset a Nonprofit Corporation

    EIN 881720554 · Headquarters: CAMBRIDGE, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  18. Head-of-the Charles Regatta Inc

    EIN 043317489 · Headquarters: CAMBRIDGE, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Healing and Arts Studio Inc

    EIN 043244377 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  20. Health Story Collaborative Inc

    EIN 463707918 · Headquarters: CAMBRIDGE, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. Healthworks Community Fitness Inc

    EIN 043431534 · Headquarters: CAMBRIDGE, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. HEETLabs Inc

    EIN 992296720 · Headquarters: Cambridge, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Helen Hart Hurlbert Foundation Inc C/o Tyler Lynch Pc

    EIN 346558853 · Headquarters: CAMBRIDGE, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  24. Helix Bioscience Institute Inc

    EIN 462315982 · Headquarters: Cambridge, MA, US · Science & Technology · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. Hello China USA Inc

    EIN 812561875 · Headquarters: cambridge, MA, US · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  26. Helping Animals Living Overseas Halo Inc

    EIN 461469363 · Headquarters: Cambridge, MA, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. Hera Inc

    EIN 842724125 · Headquarters: CAMBRIDGE, MA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. High Meadows Graduate School of Teaching and Learning Inc

    EIN 823452586 · Headquarters: CAMBRIDGE, MA, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990

  29. High Spirit Community Farm Inc

    EIN 043809051 · Headquarters: CAMBRIDGE, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Higher Education Makerspaces Initiative Inc

    EIN 824508587 · Headquarters: CAMBRIDGE, MA, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990

  31. Hildebrand Family Self-help Center Inc

    EIN 043014834 · Headquarters: CAMBRIDGE, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Holistic Mission

    EIN 452371399 · Headquarters: Cambridge, MA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Holy Trinity Armenian Apostolic Church of Greater Boston Trust Fund

    EIN 510188147 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  34. Home University Television Inc

    EIN 043257294 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  35. Homeless Empowerment Project Inc

    EIN 043203910 · Headquarters: CAMBRIDGE, MA, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  36. Homeowner's Rehab Inc

    EIN 042519279 · Headquarters: CAMBRIDGE, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Honduras Affordable Housing Initiative Inc

    EIN 760810347 · Headquarters: CAMBRIDGE, MA, USA · Housing & Shelter · Latest available filing year: 2010 · Primary form: IRS Form 990-PF

  38. Honk

    EIN 883641880 · Headquarters: Cambridge, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Housecorp Inc

    EIN 237091484 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Housing Navigator Massachusetts Inc

    EIN 843542325 · Headquarters: CAMBRIDGE, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Hraacf Alumni Organization Inc

    EIN 203357185 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  42. Hrcf Alumni Organization Inc

    EIN 262819846 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  43. Hub & Spoke Inc

    EIN 862135713 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  44. Hult Educational Services Inc

    EIN 812441907 · Headquarters: CAMBRIDGE, MA, USA · Education · Latest available filing year: 2018 · Primary form: IRS Form 990

  45. Hult International Business School

    EIN 043348440 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Human Cell Atlas Inc

    EIN 850847756 · Headquarters: CAMBRIDGE, MA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Human Rights Education Associates Inc

    EIN 043428879 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2014 · Primary form: IRS Form 990

  48. Human Services Research Institute Inc

    EIN 521039368 · Headquarters: CAMBRIDGE, MA, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Humanist Chaplaincy at Harvard Inc

    EIN 043174504 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. I Press Incorporated

    EIN 922699753 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. Ibis Reproductive Health Inc

    EIN 030382773 · Headquarters: CAMBRIDGE, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Ic Endowment Corporation

    EIN 261965674 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  53. Icivics Inc

    EIN 383796793 · Headquarters: CAMBRIDGE, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Igem Foundation Endowment Inc

    EIN 920675801 · Headquarters: Cambridge, MA, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  55. Igem Foundation Inc

    EIN 452313408 · Headquarters: CAMBRIDGE, MA, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Ikeda Center for Peace Learning and Dialogue Inc

    EIN 043366125 · Headquarters: Cambridge, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  57. Impact Pediatrics International Inc

    EIN 262165226 · Headquarters: Cambridge, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  58. Imprint Press Inc

    EIN 453608081 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Improvisation Center of Boston Inc

    EIN 043194750 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. In the Arena Inc

    EIN 205873806 · Headquarters: CAMBRIDGE, MA, USA · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990

  61. Includaism Inc

    EIN 453646836 · Headquarters: Cambridge, MA, US · Religion Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  62. Inclusive Security Action Inc

    EIN 461147413 · Headquarters: CAMBRIDGE, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2016 · Primary form: IRS Form 990

  63. Independent Film Society of Boston Inc

    EIN 030482207 · Headquarters: CAMBRIDGE, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Industrial Workers of the World

    EIN 200563122 · Headquarters: Cambridge, MA, US · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  65. Ingredients for Education Inc C/o Natasha Rogoff

    EIN 462557009 · Headquarters: CAMBRIDGE, MA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Inkwell Foundation Inc

    EIN 020756843 · Headquarters: CAMBRIDGE, MA, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  67. Innovation Ideas Institute Corporation

    EIN 461675454 · Headquarters: CAMBRIDGE, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Innovation Xd Inc

    EIN 392899424 · Headquarters: Cambridge, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Innovation-clean Energy Economy Pathways Icep Inc

    EIN 364782683 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Innsure Corporation

    EIN 841845170 · Headquarters: CAMBRIDGE, MA, USA · Public & Societal Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990

  71. Institute for Integrated Health Care Inc

    EIN 203355196 · Headquarters: Cambridge, MA, US · Health Care · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  72. Institute for International Urban Development

    EIN 202835139 · Headquarters: CAMBRIDGE, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Institute for Peoples Engagement Inc

    EIN 822047555 · Headquarters: Cambridge, MA, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. Institute for Resource and Security Studies Inc

    EIN 222544914 · Headquarters: Cambridge, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Institute for Safety in Office Based Surgery Inc

    EIN 270640164 · Headquarters: Cambridge, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Institute for Social Policy and Understanding

    EIN 383633581 · Headquarters: Cambridge, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. Institute of Middle East for Public Policy

    EIN 993046034 · Headquarters: CAMBRIDGE, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Institute of Traditional Science Inc

    EIN 042577162 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  79. Instituto De Artvismo Hannah Arendt (Instar)

    EIN 934583151 · Headquarters: CAMBRIDGE, MA, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. Insulation Art Inc

    EIN 364678561 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  81. Intellectuals League Inc

    EIN 934541075 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Interactive Democracy Alliance Inc

    EIN 270200640 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Intercultural Dimensions Inc

    EIN 043202612 · Headquarters: CAMBRIDGE, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Interlock Media Inc

    EIN 043196958 · Headquarters: CAMBRIDGE, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  85. International Academic Program Inc

    EIN 465669697 · Headquarters: Cambridge, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  86. International Academy of Periodontology Inc

    EIN 464399692 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2019 · Primary form: IRS Form 990

  87. International Association for Biological and Medical Research In

    EIN 760733843 · Headquarters: Cambridge, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. International Association for Comparative Mythology

    EIN 262036538 · Headquarters: Cambridge, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. International Association of Lions Clubs

    EIN 800650979 · Headquarters: CAMBRIDGE, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  90. International Brotherhood of Electrical Workers

    EIN 046114553 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  91. International Center for Integrative Systems Inc

    EIN 273708711 · Headquarters: CAMBRIDGE, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. International Commission for Refugees Inc

    EIN 932922020 · Headquarters: Cambridge, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. International Committee for the Children of Chechnya

    EIN 043316398 · Headquarters: Cambridge, MA, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  94. International Society for Solid State Ionics

    EIN 812785724 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. International Towns Federation

    EIN 611864385 · Headquarters: CAMBRIDGE, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. International Union United Auto Aerospace & Agricultural Workers

    EIN 852466370 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. Intrepid Alliance Inc Co Browne Consulting Group

    EIN 352711268 · Headquarters: CAMBRIDGE, MA, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Investours Inc

    EIN 800629795 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990

  99. Invisible International Inc

    EIN 844626505 · Headquarters: Cambridge, MA, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Ion Inc

    EIN 223032677 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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