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. Billerica Lodge No 2648 Loyal Order of Moose Inc

    EIN 204274566 · Headquarters: NORTH BILLERICA, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. Billerica Masonic Association Inc (Master Wardens & Members of the Grand L

    EIN 043081834 · Headquarters: BILLERICA, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  3. Billerica Municipal Employees Credit Uniion

    EIN 042495191 · Headquarters: Billerica, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Billerica Partners for Education

    EIN 043157320 · Headquarters: BILLERICA, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  5. Billerica Pop Warner Football Inc

    EIN 043165020 · Headquarters: Billerica, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  6. Billerica Youth Soccer Association

    EIN 043137512 · Headquarters: BILLERICA, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  7. Billy Ward Pond Improvement Association Inc

    EIN 043209285 · Headquarters: ASHBURNHAM, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Biodiversity and Sustainability Energy Research Corporation

    EIN 472420895 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  9. Biomimicry New England Inc

    EIN 464454754 · Headquarters: Gloucester, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Biophysical Economics Institute Inc

    EIN 853222578 · Headquarters: MALDEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  11. Biotech Connection at Boston Limited

    EIN 474187164 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  12. Biotechnology Center of Excellence Corporation

    EIN 043123325 · Headquarters: Waltham, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Bird Observer Inc

    EIN 237446732 · Headquarters: Arlington, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Birkshire District Medical Society

    EIN 046006571 · Headquarters: WALTHAM, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Birthright of Framingham Inc

    EIN 042684933 · Headquarters: Framingham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Birthright of Greater Taunton Inc

    EIN 510155754 · Headquarters: Taunton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Birthright of Hudson-marlborough Inc

    EIN 510201165 · Headquarters: Marlborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Birtwistle Leonard Irrevocable Trust

    EIN 206080933 · Headquarters: PLYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. Bisexual Resource Center Inc

    EIN 043072009 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Black & Blue Youth Lacrosse Association Inc

    EIN 043554906 · Headquarters: Swampscott, MA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  21. Black and Pink Inc

    EIN 273930676 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Blacks in Government

    EIN 043125717 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Blacks in Government

    EIN 471752711 · Headquarters: Lowell, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Blacks in Government

    EIN 850669126 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Blackstone Community Center Council Inc

    EIN 042595597 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  26. Blackstone River Watershed Association Inc

    EIN 237075827 · Headquarters: Uxbridge, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Blackstone Trailblazers Inc

    EIN 923986531 · Headquarters: Sutton, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Blackstone Valley Beagle Club Inc

    EIN 043317050 · Headquarters: DOUGLAS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Blackstone Valley Chamber of Commerce Inc

    EIN 043300984 · Headquarters: WHITINSVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Blackstone Valley Dressage and Combined Training Association

    EIN 262713720 · Headquarters: Uxbridge, MA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  31. Blackstone-millville Food Pantry

    EIN 223215752 · Headquarters: Blackstone, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Blackstone-millville Music Association Inc

    EIN 042701598 · Headquarters: BLACKSTONE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Blanche M Walsh Charity Trust

    EIN 046311841 · Headquarters: LOWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  34. Blandford Historical Society Inc

    EIN 046066722 · Headquarters: BLANDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Blanker Foundation Inc

    EIN 222584289 · Headquarters: NORTHFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. Blanket the Globe Inc

    EIN 260690580 · Headquarters: Marblehead, MA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  37. Blet Division 112 C/o Stephen T Burgess

    EIN 046167895 · Headquarters: WESTFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Blet Division 191 C/o Dana J Gifford

    EIN 042706791 · Headquarters: BROOKLINE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Blet Division 439 C/o John Nichols

    EIN 042349268 · Headquarters: SPENCER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Blet Division 57 C/o Willaim S Keay

    EIN 237337095 · Headquarters: NORTH BROOKFEILD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Blinded Veterans Assoc Mass Regional

    EIN 800430960 · Headquarters: Haverhill, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  42. Blinded Veterans Association Western Massachusetts Chapter

    EIN 331211217 · Headquarters: Wilbraham, MA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  43. Blk Consulting Group Inc

    EIN 994528238 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Blockchain Security Standards Council Inc

    EIN 991780052 · Headquarters: WAKEFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Blood Research Institute Inc

    EIN 043136318 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  46. Blue Collar Coalition Ny Inc

    EIN 834145712 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  47. Blue Cross Blue Shield of Massachusetts Hmo Blue Inc

    EIN 043362283 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Blue Hill Observatory Science Center Inc

    EIN 222517414 · Headquarters: Milton, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  49. Blue Hills Booster Club Inc

    EIN 462286522 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Blue Knights Law Enforcement Motorcycle Club Massachusetts

    EIN 223235470 · Headquarters: SAGAMORE BEACH, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Blue Knights Motorcycle Club

    EIN 046390670 · Headquarters: SHARON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Blue Knights Motorcycle Club

    EIN 222582952 · Headquarters: Middleton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Blue Knights Motorcycle Club

    EIN 223212639 · Headquarters: Buzzards Bay, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Blue Knights Motorcycle Club

    EIN 223212995 · Headquarters: Rutland, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  55. Blue Rock Heights Assn

    EIN 043107782 · Headquarters: South Yarmouth, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Blue Star Mothers of America Inc

    EIN 300382196 · Headquarters: Teaticket, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Blue Star Mothers of America Inc

    EIN 331187037 · Headquarters: WORCESTER, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Blue Water Brotherhood Inc

    EIN 208068094 · Headquarters: PEMBROKE, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  59. Bluebonnet Data Inc

    EIN 843913389 · Headquarters: Somerville, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Bluefin Organization Incorporated

    EIN 831412856 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  61. Bluehub Loan Fund Inc

    EIN 222593378 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Bmc Affiliated Physicians Inc

    EIN 043218267 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  63. Bmhs Class of 1965

    EIN 472169895 · Headquarters: Dracut, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  64. Bmr Girls Volleyball Boosters Inc

    EIN 394194317 · Headquarters: MILLVILLE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Bmw Car Club of America Boston Chapter Inc

    EIN 043133405 · Headquarters: LEXINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. Bnai Brith International

    EIN 237145481 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Board of Regents of Higher Education Ma Teachers Assoc Health & Welfare Fund

    EIN 042901664 · Headquarters: MILTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Body Mind Centering Association Inc

    EIN 042940648 · Headquarters: FLORENCE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Bohemians Inc

    EIN 042807434 · Headquarters: WORCESTER, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. Bold Teens Inc

    EIN 853198745 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Bollt T & M Family Foundation-tr

    EIN 656113538 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  72. Bolton Historical Society

    EIN 223049979 · Headquarters: BOLTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Bonafide Saints Lemc Inc

    EIN 454352993 · Headquarters: Taunton, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Book More Women Inc

    EIN 394187997 · Headquarters: North Andover, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Bookbuilders of Boston Inc

    EIN 042716674 · Headquarters: WHITINSVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  76. Bookbuilding Workshops Inc

    EIN 834563979 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  77. Boosters Athletic Club of Webster

    EIN 042090566 · Headquarters: Webster, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Bosox Club Inc

    EIN 046153304 · Headquarters: WAKEFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. Bossidy Crerar Post Home Inc

    EIN 046126863 · Headquarters: LEE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Boston & Vicinity Roofing Industry Promotion Fund

    EIN 046149421 · Headquarters: BRAINTREE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Boston Agility Racing K-9s Inc

    EIN 043318649 · Headquarters: MATTAPOISETT, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Boston Alcohol & Substance Abuse Programs Inc

    EIN 237432280 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  83. Boston Amateur Radio Club

    EIN 043102951 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Boston Architectural College

    EIN 042271070 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Boston Area Returned Peace Corps Volunteers Inc

    EIN 042716236 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Boston Area Youth Soccer League Inc

    EIN 042741951 · Headquarters: WRENTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Boston Art Song Society

    EIN 474610261 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  88. Boston Artists Ensemble Inc

    EIN 042734069 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. Boston Asianmoto Club Inc

    EIN 932111497 · Headquarters: WELLESLEY HILLS, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. Boston Association for Childbirth Education Inc

    EIN 237001480 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  91. Boston Association of New Americans

    EIN 043092762 · Headquarters: Brookline, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Boston Bar Association

    EIN 042164774 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Boston Bellringers

    EIN 881650461 · Headquarters: Swampscott, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Boston Bird Festival Corporation

    EIN 352852996 · Headquarters: Pittsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Boston Boys Choir

    EIN 043210036 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Boston Braves Historical Association

    EIN 271542996 · Headquarters: Chestnut Hill, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Boston Bruins Alumni Association Inc

    EIN 237346714 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Boston Building Materials Coop Charitable and Educational Fund

    EIN 042749815 · Headquarters: ROXBURY CROSSING, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Boston Bulldogs Running Club

    EIN 475240494 · Headquarters: Chestnut Hill, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Boston Camera Club

    EIN 046049574 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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