Unknown & Unclassified nonprofits in Massachusetts

Unknown & Unclassified nonprofits in Massachusetts. Browse 12,299 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. Concerned Advocates of New England Inc

    EIN 042591272 · Headquarters: Malden, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Concerned Black Men of Massachusetts Inc

    EIN 223019881 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Concerned United Birthparents

    EIN 421347648 · Headquarters: Milford, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  4. Concord Band Association

    EIN 510205816 · Headquarters: Concord, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Concord Carlisle High School Parents Assoc Inc

    EIN 042748334 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Concord Chamber of Commerce Corp

    EIN 042163935 · Headquarters: Concord, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Concord Country Club

    EIN 041200680 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Concord Free Public Library Corporation

    EIN 042121328 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Concord Friends of the Aging Corp

    EIN 042738822 · Headquarters: Concord, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Concord Minute Men Inc

    EIN 042725624 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Concord Montessori School Inc

    EIN 042470894 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Concord on Tap

    EIN 465289851 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  13. Concord Piecemakers

    EIN 042701699 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Concord Police Association

    EIN 043115987 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Concord Rod and Gun Club

    EIN 046058565 · Headquarters: Concord, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Concord Rotary Charitable Endowment Inc

    EIN 043051865 · Headquarters: Concord, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Concord Youth Theatre Inc

    EIN 042776922 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Concord's Home for the Aged Inc

    EIN 042103762 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  19. Confrerie De La Chaine Des Rotisseu Rs Bailliage Des Ri

    EIN 050507957 · Headquarters: SEEKONK, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Congregation Atereth Israel Cemetery Association

    EIN 043214166 · Headquarters: Brighton, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. Conn Valley Mineral Club

    EIN 046058668 · Headquarters: SOUTH HADLEY, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Connecticut Dairy Industry Council Inc

    EIN 273519838 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  23. Connecticut Education Association

    EIN 237106758 · Headquarters: Sturbridge, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Connecticut Insurance Guaranty Association

    EIN 237204066 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Connecticut Library Association Inc

    EIN 060853589 · Headquarters: BELCHERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Connecticut Mutual Life Insurance Co Voluntary Employee Health

    EIN 061128889 · Headquarters: Springfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. Connecticut Railroad Association

    EIN 043513011 · Headquarters: Holland, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Connecticut River Valley Golden Retrievers Club Inc

    EIN 061389981 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Connecticut Valley Superintendents Service Center Inc

    EIN 237213022 · Headquarters: Northampton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Connecticut Yankee Atomic Power Company Employee Welfare Trust

    EIN 066398459 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Connecticut Yankee Dachund Club

    EIN 222582525 · Headquarters: UXBRIDGE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Conquering Congenital Heart Disease

    EIN 852374571 · Headquarters: Medway, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. Conservation Food and Health Foundation Inc C/o Gma Foundations

    EIN 222625024 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  34. Consortium for Mathematics and Its Applications Inc

    EIN 042721935 · Headquarters: BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Constitution Yacht Club

    EIN 042904093 · Headquarters: Charlestown, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  36. Construction & General Laborers' Union of Na Local 385

    EIN 041903033 · Headquarters: FAIRHAVEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  37. Construction Equipment Maintenance Association

    EIN 042740536 · Headquarters: Westport, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  38. Construction Industries of Ma Inc

    EIN 042531283 · Headquarters: NORWOOD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Construction Industries of Mass Advancement Fund

    EIN 510200356 · Headquarters: FRAMINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Construction Laborers Union Local #999

    EIN 041673745 · Headquarters: EAST LONGMEADOW, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Construction Management Association of America Inc New England Chapter

    EIN 311504672 · Headquarters: STOW, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Construction Specifications Institute Worcester Chapter

    EIN 800592647 · Headquarters: Shrewsbury, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Consumer Assistance Council Inc

    EIN 042825058 · Headquarters: EAST FALMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Contentment Dar

    EIN 237027551 · Headquarters: Greenfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Continuum Oral Health Inc

    EIN 990609224 · Headquarters: pittsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Conway Cemetery Association

    EIN 042090302 · Headquarters: Conway, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Conway Historical Society Inc

    EIN 041205110 · Headquarters: Conway, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Conway Sportsman's Club Inc

    EIN 046141678 · Headquarters: CONWAY, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  49. Coolidge Hill Foundation

    EIN 042121312 · Headquarters: LENOX, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  50. Coolidge School Science Olympiad Inc

    EIN 043192502 · Headquarters: READING, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  51. Cooperative Credit Union Association Inc

    EIN 043403594 · Headquarters: MARLBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Copeland Family Foundation Inc

    EIN 222474056 · Headquarters: MILTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  53. Copicut Rifle Association Inc

    EIN 222695833 · Headquarters: Fall River, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Cordelia Family Foundation LTD

    EIN 465005885 · Headquarters: Norwell, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  55. Cores Inc

    EIN 043377072 · Headquarters: Somerville, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Corinthian Yacht Club

    EIN 041209030 · Headquarters: MARBLEHEAD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Cornell Association of Phi Gamma Delta Inc

    EIN 043112840 · Headquarters: Oak Bluffs, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. Corporation for Advancement of Medical Technologies Inc

    EIN 522079827 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Corporation for the Celebration of Jack Kerouac in Lowell

    EIN 222700024 · Headquarters: LOWELL, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Corvette Club of Western Mass Inc

    EIN 813452509 · Headquarters: Agawam, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Cotsidas Charitable Trust C/o Greenberg Rosenbltt Kull & Bitsoli

    EIN 046051091 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Cottage Park Yacht Club Inc

    EIN 041212036 · Headquarters: WINTHROP, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Cotuit Library Association

    EIN 042203831 · Headquarters: COTUIT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Council of Chelmsford Schools Inc

    EIN 043156330 · Headquarters: Chelmsford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Council on Global Financial Regulation

    EIN 273589782 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  66. Council on Naturopathic Medical

    EIN 930785656 · Headquarters: GREAT BARRINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Counsel of Pulmonary Service Managers Inc

    EIN 043104563 · Headquarters: Ludlow, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. Counselors of Real Estate

    EIN 271382007 · Headquarters: Lynnfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Countess Sondes Foundation Limited

    EIN 980432585 · Headquarters: MARION, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  70. Country City Foundation Inc

    EIN 133020588 · Headquarters: Lenox, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  71. Country Club of Greenfield

    EIN 041212942 · Headquarters: GREENFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. Country Club of New Bedford Inc

    EIN 041212945 · Headquarters: N DARTMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Country Club of Pittsfield

    EIN 041212950 · Headquarters: PITTSFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Country Club of Wilbraham Inc

    EIN 042445190 · Headquarters: WILBRAHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Country Club Way Infrastructure Improvement Association

    EIN 392660997 · Headquarters: Kingston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Country Dance & Song Society Inc

    EIN 043255368 · Headquarters: Northampton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Country Dance & Song Society Inc

    EIN 043411063 · Headquarters: Shutesbury, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Country Dance & Song Society Inc

    EIN 043482568 · Headquarters: medford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Country Dance & Song Society Inc

    EIN 141724227 · Headquarters: Easthampton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Country Dance & Song Society Inc

    EIN 200700473 · Headquarters: Sudbury, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Country Dance & Song Society Inc

    EIN 460956910 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Country Dance & Song Society Inc

    EIN 832664683 · Headquarters: Williamstown, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. County Donegal Assoc of Greater Boston

    EIN 042724713 · Headquarters: QUINCY, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. County Roscommon Assn of Boston

    EIN 043156953 · Headquarters: West Roxbury, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  85. Courageous Sailing Center for Youth Inc

    EIN 042987534 · Headquarters: CHARLESTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Court Security Officers Association

    EIN 043115913 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. Covenant Christian Academy

    EIN 043170101 · Headquarters: West Peabody, MA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Covid-19 International Research Team

    EIN 851947666 · Headquarters: Medford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Cox Cares Foundation

    EIN 332158294 · Headquarters: RANDOLPH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  90. Cpa for New Bedford

    EIN 471350076 · Headquarters: New Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  91. Cpl Aldred Lopes Jr Lt Ronald R Ferris Chapter Korean War

    EIN 223455232 · Headquarters: MARSHFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Cprs (Coalition to Preserve Retirement Security)

    EIN 742156872 · Headquarters: METHUEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Cps Associates of New England

    EIN 046054207 · Headquarters: Ludlow, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  94. Cracktuxet Trust

    EIN 046674467 · Headquarters: Edgartown, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Crafty Cows 4-H Club

    EIN 471312395 · Headquarters: West Brookfield, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  96. Craig Spadafora Committe to Elect

    EIN 271519787 · Headquarters: MALDEN, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  97. Cranberry Country Chamber of Commerce

    EIN 042692130 · Headquarters: MIDDLEBORO, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Cranberry Valley Mens Golf Association

    EIN 222880947 · Headquarters: Harwich, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Create Home Inc

    EIN 272547381 · Headquarters: Mattapan, MA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  100. Creative Articulations Inc

    EIN 042798060 · Headquarters: Florence, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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