Nonprofits in Massachusetts

Nonprofits in Massachusetts. Browse 52,168 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. Operation Veteran Vacation Inc

    EIN 883119783 · Headquarters: LUDLOW, MA, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Operation Winchendon Cares

    EIN 760777429 · Headquarters: Winchendon, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Operation250

    EIN 823273353 · Headquarters: Watertown, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Ophthalmic Consultants of Boston Inc Health Welfare & Benefits Plan

    EIN 611433916 · Headquarters: WALTHAM, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Opioid Spoon Project Inc C/o Domenic Esposito

    EIN 834379142 · Headquarters: CAMBRIDGE, MA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. OppCo

    EIN 823595539 · Headquarters: Chelsea, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Opportuneity Communituy Connections

    EIN 992486458 · Headquarters: Spencer, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Opportunities for Communities Inc

    EIN 263839792 · Headquarters: Amherst, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Opportunities for Hope Inc

    EIN 222515061 · Headquarters: FITCHBURG, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Opportunities for Inclusion Inc

    EIN 042441728 · Headquarters: WALTHAM, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Opportunity Matters Network Inc

    EIN 861750249 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Opportunity Outreach Initiative

    EIN 992971410 · Headquarters: Littleton, MA, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. Opportunity Solutions International Incorporated

    EIN 260294002 · Headquarters: Chatham, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Opportunity Works Inc

    EIN 237364943 · Headquarters: Newburyport, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Opposite of People Inc

    EIN 465693442 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  16. Opsys Inc

    EIN 455116578 · Headquarters: Cambridge, MA, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  17. Opt-inspire Inc

    EIN 334974310 · Headquarters: Boston, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Opticians Association of MA Inc

    EIN 042955807 · Headquarters: Medway, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Optima Parent Guild Inc

    EIN 463619603 · Headquarters: Andover, MA, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  20. Optimist International

    EIN 043029699 · Headquarters: Southbridge, MA, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  21. Optimist International

    EIN 900209985 · Headquarters: Auburn, MA, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  22. Optimize Health Inc

    EIN 464265568 · Headquarters: Newton, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  23. Optineeds

    EIN 813600764 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Option Institute and Fellowship Autism Treatment Center of America

    EIN 042780755 · Headquarters: GREAT BARRIMGTON, MA, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Options for Children in Zambia

    EIN 870763504 · Headquarters: Foxboro, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Options In Education Inc

    EIN 223385616 · Headquarters: West Tisbury, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  27. Options Inc

    EIN 042722870 · Headquarters: LONGMEADOW, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  28. Options Properties Inc

    EIN 311712796 · Headquarters: MARLBOROUGH, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Options-womens Self-defense Inc

    EIN 830346732 · Headquarters: Ludlow, MA, US · Human Services · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  30. Opturo Foundation Inc C/o Barneke and Anderson Llp

    EIN 461629584 · Headquarters: BOSTON, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Opus Dei Awareness Network Inc

    EIN 043134428 · Headquarters: Pittsfield, MA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Opus V Inc

    EIN 882534839 · Headquarters: Marstons Mills, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Ora Gaylord Arooth Trust Dated 4142000 Carol a Rowley Trustee

    EIN 046929348 · Headquarters: BREWSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. Orange Business Association

    EIN 043165392 · Headquarters: Orange, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  35. Orange Career Fire Fighters Local 4569

    EIN 208589164 · Headquarters: Orange, MA, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Orange Gun Club Inc

    EIN 223181815 · Headquarters: ORANGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Orange Historical Society Inc

    EIN 042576755 · Headquarters: Orange, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Orange Recovery House Inc

    EIN 203339254 · Headquarters: TURNERS FALLS, MA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2019 · Primary form: IRS Form 990

  39. Orange Recreation Association

    EIN 043332911 · Headquarters: Orange, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Orange Revitalization Partnership Inc

    EIN 043253417 · Headquarters: ORANGE, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Orange Rose Foundation Inc

    EIN 862768854 · Headquarters: EVERETT, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Orange Scholarship Foundation

    EIN 046138742 · Headquarters: ORANGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  43. Orange Senior Citizens Club

    EIN 992133109 · Headquarters: Orange, MA, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Oranges from Morgan Inc

    EIN 842265321 · Headquarters: BOXFORD, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Oras Place Inc

    EIN 352211567 · Headquarters: Hyde Park, MA, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Orchard Avenue Homeowners Associati on Inc

    EIN 043536964 · Headquarters: Weston, MA, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Orchard Park Revitalization Corporation

    EIN 043284201 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Orchard Park Tenants Association

    EIN 042867846 · Headquarters: ROXBURY, MA, US · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Orchard Theatre Company Inc

    EIN 455142183 · Headquarters: Gardner, MA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  50. Orchard View Elderly Housing Inc

    EIN 222621294 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Orchestra Book Club Inc

    EIN 991952915 · Headquarters: Medford, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Orchestra on the Hill Inc

    EIN 274906508 · Headquarters: IPSWICH, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Order & Liberty Inc

    EIN 812725000 · Headquarters: WRENTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  54. Order My Steps Ministries Inc

    EIN 824617060 · Headquarters: Malden, MA, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  55. Order of Ahepa

    EIN 272141185 · Headquarters: Worcester, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  56. Order of Alhambra

    EIN 237505795 · Headquarters: Hyde Park, MA, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  57. Order of Commerical Travelers of America

    EIN 901138349 · Headquarters: LYNN, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  58. Order of Eastern Star of Maine

    EIN 237540396 · Headquarters: NATICK, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Order of Eastern Star of Massachusettes 109 Samoset

    EIN 237573865 · Headquarters: Foxborough, MA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  60. Order of Eastern Star of Massachusetts 130 Wisdom

    EIN 237573883 · Headquarters: West Stockbridge, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. Order of Eastern Star Orient Chapter 31

    EIN 237025814 · Headquarters: Framingham, MA, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  62. Order of Quetzalcoatl Plumed Serpent

    EIN 043189725 · Headquarters: WESTFIELD, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  63. Order of Runeberg

    EIN 237548190 · Headquarters: Walpole, MA, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  64. Order of the Alhambra

    EIN 237505663 · Headquarters: Peabody, MA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  65. Order of the Alhambra

    EIN 237505899 · Headquarters: Hull, MA, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  66. Order of the Amaranth Inc

    EIN 042605383 · Headquarters: Lolwell, MA, US · Crime & Legal Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  67. Order of the Amaranth Inc

    EIN 272263178 · Headquarters: Holden, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Order of the Amaranth Inc Supreme Council

    EIN 043231186 · Headquarters: Dennis, MA, US · Crime & Legal Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  69. Order of the Amaranth Inc Supreme Council

    EIN 046067231 · Headquarters: Quincy, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Order of the Amaranth Inc Supreme Council

    EIN 237614104 · Headquarters: Lynn, MA, US · Crime & Legal Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  71. Order of the Amaranth Inc Supreme Council

    EIN 470992032 · Headquarters: Framingham, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Order of the White Shrine of Jerusalem

    EIN 237514315 · Headquarters: Haverhill, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Ordinary Marathoner Foundation

    EIN 852824356 · Headquarters: East Longmeadow, MA, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  74. Oregon Sportsmen's Club of Western Massachusetts Inc

    EIN 042446388 · Headquarters: CHICOPEE, MA, USA · Animal Related · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  75. Orenda Wildlife Land Trust Inc

    EIN 043582388 · Headquarters: WEST BARNSTABLE, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Orfeo Group

    EIN 260380368 · Headquarters: Roxbury, MA, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  77. Organic Change Inc

    EIN 273618453 · Headquarters: Feeding Hills, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Organic Torah Inc

    EIN 273263690 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  79. Organization Dominicana De Recursos Internacionales Inc

    EIN 201152008 · Headquarters: HAVERHILL, MA, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  80. Organization for Med & Psych Assist for Children Overseas Inc

    EIN 743071409 · Headquarters: Lexington, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Organization for Nonprofit Excellence Inc

    EIN 471570314 · Headquarters: WORCESTER, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Organization for Renal Care in Haiti Torch Inc

    EIN 471516746 · Headquarters: Dedham, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Organization for the Control & Eradication of Tuberculosis in Liberia Inc

    EIN 863019429 · Headquarters: LYNN, MA, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  84. Organization For The Research Of Ancient Cultures

    EIN 463844668 · Headquarters: CAMBRIDGE, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Organization Maya Kiche USA

    EIN 043524866 · Headquarters: NEW BEDFORD, MA, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  86. Organization New Acropolis USA Northeast Inc

    EIN 300748331 · Headquarters: Somerville, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Organization of Action for the Developement of Fond Des Negres

    EIN 270354825 · Headquarters: Waltham, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  88. Organization of Biological Field Stations Inc

    EIN 711047817 · Headquarters: Williamsburg, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Organization of Chinese Americans Inc

    EIN 521306689 · Headquarters: Belmont, MA, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  90. Organization of Clean Energy and Climate Inc

    EIN 880712679 · Headquarters: NEWTON, MA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Organization of Former Members of Mahanaim

    EIN 061810905 · Headquarters: Mattapan, MA, US · Religion Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  92. Organization of New England Chapters of Alpha-oneca

    EIN 201851156 · Headquarters: Auburn, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Organization of Nurse Leaders Inc

    EIN 042658180 · Headquarters: Whitinsville, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Organization Pro-education & Development Inc

    EIN 042679835 · Headquarters: Northampton, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. Organization Support Development Central Inc

    EIN 262267409 · Headquarters: Roslindale, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  96. Organized Youth Inc

    EIN 844171641 · Headquarters: Saugus, MA, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Organizers Collaborative

    EIN 043469389 · Headquarters: Lowell, MA, US · Science & Technology · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  98. Organizing Committee for the Day of Portugal and Camoes Inc

    EIN 020588915 · Headquarters: NEW BEDFORD, MA, USA · Education · Latest available filing year: 2021 · Primary form: IRS Form 990

  99. Orhan Gunduz Memorial School

    EIN 262057720 · Headquarters: Chestnut Hill, MA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Orient Heights Yacht Club Inc

    EIN 042503211 · Headquarters: EAST BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

First page and all pages