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. Masonic Angel Foundation Inc

    EIN 834105467 · Headquarters: Orleans, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  2. Masonic Education & Charity Trust

    EIN 042104701 · Headquarters: BOSTON, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Masonic Foundation for Haitians Inc

    EIN 272861817 · Headquarters: Randolph, MA, US · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  4. Masonic Health System of Massachusetts Inc

    EIN 043515688 · Headquarters: CHARLTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Masonry Industry Equality Fund

    EIN 046831593 · Headquarters: CHARLESTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  6. Masons of Massachusetts Dalhousie Lodge

    EIN 237170804 · Headquarters: NEWTON HIGHLANDS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Masood Family Foundation Inc

    EIN 200762494 · Headquarters: Lexington, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  8. Mass Afl-cio Workforce Development Programs Inc

    EIN 043509974 · Headquarters: BOSTON, MA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Mass Airscenting K 9

    EIN 043173262 · Headquarters: Athol, MA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  10. Mass Alliance Inc

    EIN 204272351 · Headquarters: ROSLINDALE, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Mass Appeal

    EIN 223204726 · Headquarters: WELLFLEET, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Mass Appeal International

    EIN 043529531 · Headquarters: Malden, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Mass Assoc for Health Physical Education Recreation & Dance Inc

    EIN 237167348 · Headquarters: ATTLEBORO, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Mass Assoc for Parents of the Visually Impaired Inc

    EIN 043229630 · Headquarters: Watertown, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  15. Mass Assoc of 766 Approved Private Sch

    EIN 042718662 · Headquarters: STONEHAM, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Mass Assoc of Colleges of Nursing

    EIN 042700598 · Headquarters: weston, MA, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  17. Mass Assoc of Criminal Defense Lawyers

    EIN 223234036 · Headquarters: Worcester, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  18. Mass Association for Supervision & Curriculum Development

    EIN 222988790 · Headquarters: BELMONT, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  19. Mass Association of Accountantsinc

    EIN 237135793 · Headquarters: PEABODY, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Mass Attack Roller Derby Inc

    EIN 465465135 · Headquarters: Taunton, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Mass Bay Credit Union

    EIN 041104060 · Headquarters: SOUTH BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Mass Bay Credit Union Charitable Foundation Inc

    EIN 474345057 · Headquarters: SOUTH BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. Mass Bay Girls Lacrosse League

    EIN 141932732 · Headquarters: GROTON, MA, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  24. Mass Bay Intergroup Inc

    EIN 042763938 · Headquarters: ARLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. Mass Bay Open Water Rowing Inc

    EIN 113774327 · Headquarters: North Carver, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Mass Bears and Cubs Inc

    EIN 843662078 · Headquarters: WAKEFIELD, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Mass Board of Real Estate Appraisers

    EIN 042706453 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Mass Building Commissioners

    EIN 042716402 · Headquarters: ROWLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Mass Business Educators Assn

    EIN 042667909 · Headquarters: Swampscott, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. Mass Care Bridge Inc

    EIN 393407679 · Headquarters: Lowell, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Mass Central Rail Trail Alliance Inc

    EIN 043513801 · Headquarters: Sudbury, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Mass Chapter of American College of Healthcare Administrators Inc

    EIN 043580730 · Headquarters: Natick, MA, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Mass Coalition of Taft-hartley Trust Funds

    EIN 043214282 · Headquarters: TAUNTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Mass Council of Adult Foster Care

    EIN 042889803 · Headquarters: SPRINGFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Mass Credit Union Share Insurance Corp

    EIN 042296410 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  36. Mass Design Group Ltd

    EIN 611659704 · Headquarters: BOSTON, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Mass Destruction Football and Cheer

    EIN 332611018 · Headquarters: BROCKTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Mass District 33-S Lions Eyemobile Inc 150 Cove St

    EIN 042620901 · Headquarters: FALL RIVER, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Mass Divest Incorporated

    EIN 834638900 · Headquarters: Lowell, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  40. Mass Drifters Junior Olympic Softball

    EIN 113824951 · Headquarters: Bridgewater, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Mass Elite Opening Doors Foundation

    EIN 933521724 · Headquarters: Needham, MA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Mass Eta of Phi Kappa Theta Alumni Corp

    EIN 046063508 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. Mass Eye and Ear

    EIN 222658209 · Headquarters: Boston, MA, United States · Health Care · Latest available filing year: 2017 · Primary form: IRS Form 990

  44. Mass Flower Growers Associationinc

    EIN 046605795 · Headquarters: BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Mass Food Covid 19 Inc

    EIN 851043644 · Headquarters: PLYMOUTH, MA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Mass Frenzy Inc

    EIN 270182456 · Headquarters: Sunderland, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. Mass Funeral Directors Assoc Inc

    EIN 042399297 · Headquarters: Weymouth, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Mass Fusion Fastpitch Softball Incorporated

    EIN 822880259 · Headquarters: Falmouth, MA, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  49. Mass General Brigham

    EIN 043230035 · Headquarters: SOMERVILLE, MA, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  50. Mass General Brigham

    EIN 900656139 · Headquarters: SOMERVILLE, MA, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  51. Mass General Brigham Community Physicians Inc

    EIN 043236175 · Headquarters: SOMERVILLE, MA, USA · Health Care · Latest available filing year: 2021 · Primary form: IRS Form 990-T

  52. Mass General Brigham Health Plan

    EIN 042932021 · Headquarters: SOMERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Mass H&v

    EIN 991693397 · Headquarters: Burlington, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Mass Healing Inc

    EIN 333193328 · Headquarters: Marshfield, MA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Mass Hike

    EIN 814020521 · Headquarters: Worcester, MA, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  56. Mass Hope Inc

    EIN 043220412 · Headquarters: HOLDEN, MA, USA · Education · Latest available filing year: 2021 · Primary form: IRS Form 990

  57. Mass Hospital Research & Educational Association Inc

    EIN 237039401 · Headquarters: BURLINGTON, MA, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  58. Mass Independent Automobile Dealers Assoc Inc

    EIN 043216280 · Headquarters: DEDHAM, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. Mass Insight Education and Research Institute Inc

    EIN 043369687 · Headquarters: BOSTON, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Mass Island Corp

    EIN 993715939 · Headquarters: WALTHAM, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Mass J2j Inc

    EIN 861488203 · Headquarters: CAMBRIDGE, MA, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Mass Juniors Volleyball Assoc Inc

    EIN 043029694 · Headquarters: WEYMOUTH, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Mass L E a P Inc

    EIN 811668473 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  64. Mass Labor Action Network Inc

    EIN 834617227 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Mass Law Enforcement Memorial

    EIN 043285645 · Headquarters: SPRINGFIELD, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Mass Liberation

    EIN 832116098 · Headquarters: ROXBURY, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Mass Live Arts Inc % Ilan Bachrach

    EIN 462246013 · Headquarters: ALFORD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  68. Mass Localtv Inc

    EIN 932370661 · Headquarters: Brookline, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Mass Maple Producers Association Inc C/o Melissa Leab

    EIN 042377840 · Headquarters: HANCOCK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Mass Miata Club Ltd

    EIN 470899280 · Headquarters: Boston, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Mass Mudders Inc

    EIN 043507298 · Headquarters: GLOUCESTER, MA, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  72. Mass National Organization for Women Foundation Inc

    EIN 043460243 · Headquarters: JAMAICA PLAIN, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Mass Networks Education Partnership

    EIN 043313335 · Headquarters: W Falmouth, MA, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Mass Parks for All Inc

    EIN 262494069 · Headquarters: JAMAICA PLAIN, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Mass Pike Tower Tenant Association Inc

    EIN 043511475 · Headquarters: Boston, MA, US · Housing & Shelter · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  76. Mass Power Volleyball Inc

    EIN 934305207 · Headquarters: STURBRIDGE, MA, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. Mass Pride Baseball Club

    EIN 651206720 · Headquarters: BRIDGEWATER, MA, USA · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  78. Mass Recycle Inc

    EIN 043072799 · Headquarters: BOSTON, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Mass Restaurant Association Inc

    EIN 041591041 · Headquarters: WESTBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Mass Rough Riders

    EIN 990615661 · Headquarters: E BRIDGEWTR, MA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Mass Rural Water Association Inc

    EIN 203451540 · Headquarters: Northfield, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Mass School Library Association Inc

    EIN 223238052 · Headquarters: Wayland, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Mass Services for Seniors Nccba

    EIN 222518186 · Headquarters: Springfield, MA, US · Human Services · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  84. Mass Shooters Foundation Inc

    EIN 043095757 · Headquarters: FRAMINGHAM, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Mass Soc of Professors the University of Massachusetts Lowell

    EIN 042648751 · Headquarters: LOWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Mass Society for Univ Education of Women

    EIN 046145949 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  87. Mass Society of Eye Physician & Surgeons Inc

    EIN 237208474 · Headquarters: Natick, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Mass Society of Facial Plastic Surgery Inc

    EIN 851587780 · Headquarters: DANVERS, MA, US · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  89. Mass Society of Oral and Maxillofacial Surgeons

    EIN 237326227 · Headquarters: SOUTHBOROUGH, MA, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  90. Mass Spiritz Inc

    EIN 331892293 · Headquarters: Brockton, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Mass Spring Ltd

    EIN 933513085 · Headquarters: Auburn, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Mass Star Foundation Inc

    EIN 813067927 · Headquarters: Dedham, MA, US · Food, Agriculture & Nutrition · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  93. Mass State Assoc of the Deaf Inc

    EIN 222532288 · Headquarters: Woburn, MA, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Mass State Committee of the National Museum of Women in the Ar

    EIN 205011983 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Mass State Firemens Association

    EIN 042104719 · Headquarters: DRACUT, MA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  96. Mass State Foxhound Assoication

    EIN 043519195 · Headquarters: CARVER, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  97. Mass Storm Softball Inc

    EIN 881994081 · Headquarters: New Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  98. Mass Teachers Assn 292 Edu Assn of Ply & Cvr

    EIN 237128526 · Headquarters: Plymouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Mass Teachers Association

    EIN 042667903 · Headquarters: Mattapoisett, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Mass Teachers Association

    EIN 237128536 · Headquarters: GLOUCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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