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. Wellesley College Alumnae Assoc

    EIN 860318935 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  2. Wellesley College Alumnae Assoc

    EIN 911819138 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  3. Wellesley College Alumnae Assoc

    EIN 911819143 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. Wellesley College Alumnae Assoc

    EIN 936042146 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. Wellesley College Alumnae Assoc

    EIN 946138227 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  6. Wellesley College Alumnae Association

    EIN 030287938 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  7. Wellesley College Alumnae Association

    EIN 042105817 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  8. Wellesley College Alumnae Association

    EIN 042279317 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  9. Wellesley College Alumnae Association

    EIN 043564460 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  10. Wellesley College Alumnae Association

    EIN 046065023 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  11. Wellesley College Alumnae Association

    EIN 133041423 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  12. Wellesley College Alumnae Association

    EIN 236401116 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  13. Wellesley College Alumnae Association

    EIN 237098529 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  14. Wellesley College Alumnae Association

    EIN 237322870 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  15. Wellesley College Alumnae Association

    EIN 260066788 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  16. Wellesley College Alumnae Association

    EIN 273707155 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  17. Wellesley College Alumnae Association

    EIN 320124344 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  18. Wellesley College Alumnae Association

    EIN 320243176 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  19. Wellesley College Alumnae Association

    EIN 320281093 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  20. Wellesley College Alumnae Association

    EIN 364675012 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  21. Wellesley College Alumnae Association

    EIN 366097925 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  22. Wellesley College Alumnae Association

    EIN 462233251 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  23. Wellesley College Alumnae Association

    EIN 462245055 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  24. Wellesley College Alumnae Association

    EIN 521147604 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  25. Wellesley College Alumnae Association

    EIN 542170279 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  26. Wellesley College Alumnae Association

    EIN 554706748 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  27. Wellesley College Alumnae Association

    EIN 562653969 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  28. Wellesley College Alumnae Association

    EIN 911924022 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  29. Wellesley College Alumnae Association

    EIN 912142121 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  30. Wellesley College Alumnae Association

    EIN 912142122 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  31. Wellesley Conservation Land Trust Inc

    EIN 046079721 · Headquarters: Wellesley Hills, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Wellesley Country Club

    EIN 041956640 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Wellesley Education Foundation Inc

    EIN 222653559 · Headquarters: Wellesley, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Wellesley Educators Association Inc

    EIN 237107849 · Headquarters: Wellesley Hills, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Wellesley Friendly Aid Association

    EIN 042105815 · Headquarters: WELLESLEY HILLS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Wellesley Masonic Corporation Attn Peter a Mooradian

    EIN 900346683 · Headquarters: NEWTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Wellesley Scholarship Foundation Inc

    EIN 042392419 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Wellesley Symphony Orchestra

    EIN 222630863 · Headquarters: Wellesley Hills, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Wellfleet Chamber of Commerce Inc

    EIN 042672518 · Headquarters: WELLFLEET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Wellfleet Firemen's Relief Assoc

    EIN 042681725 · Headquarters: WELLFLEET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. Wellfleet Historical Society Inc

    EIN 042544051 · Headquarters: WELLFLEET, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Wellfleet Police Federation

    EIN 043188680 · Headquarters: WELLFLEET, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Wellfleet Preschool Playgroup Inc

    EIN 042645015 · Headquarters: WELLFLEET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Wellmet Project Inc

    EIN 042270072 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Wellness With Horses Inc

    EIN 920766128 · Headquarters: Bedford, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Wellseley College Alumnae Association

    EIN 912142123 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  47. Wentworth Alumni Association

    EIN 046059456 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  48. Wesley Child Care Center Inc

    EIN 042459396 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. West Barnstable Deer Club Inc

    EIN 043144480 · Headquarters: W BARNSTBLE, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. West Barnstable Firefighters Relief Association Inc

    EIN 237089625 · Headquarters: West Barnstable, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. West Beach Club

    EIN 042471279 · Headquarters: HYANNISPORT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. West Beit Olam Cemetery Corporation

    EIN 260595044 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  53. West Boylston Athletic Association

    EIN 043078245 · Headquarters: WEST BOYLSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. West Boylston Elder Services Inc

    EIN 042648042 · Headquarters: West Boylston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. West Boylston Historical Society Inc

    EIN 237400581 · Headquarters: West Boylston, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. West Boylston Police Benevolent Association Inc

    EIN 272559301 · Headquarters: WEST BOYLSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. West Boylston Youth Basketball

    EIN 261402902 · Headquarters: West Boylston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. West Brewster Community Association

    EIN 042697939 · Headquarters: Brewster, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. West Bridgewater Lions Club

    EIN 271128268 · Headquarters: West Bridgewater, MA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  60. West Brookfield Police Assoc

    EIN 043292708 · Headquarters: West Brookfield, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. West Brookfield Rescue Squad

    EIN 042625224 · Headquarters: WEST BROOKFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  62. West Corner Invitational Tournament

    EIN 473603505 · Headquarters: COHASSET, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  63. West Dennis Free Public Library Association

    EIN 042490930 · Headquarters: WEST DENNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. West Dennis Garden Club

    EIN 042610400 · Headquarters: DENNIS, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. West Dennis Yacht Club Inc

    EIN 042268203 · Headquarters: WEST DENNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. West End House Camp Inc

    EIN 042113272 · Headquarters: ALLSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  67. West Falmouth Boat Club Inc

    EIN 042452443 · Headquarters: West Falmouth, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. West Falmouth Library Inc

    EIN 042214857 · Headquarters: W FALMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. West Harwich Revitalization Foundation Inc

    EIN 811909669 · Headquarters: WEST HARWICH, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  70. West Medford Baptist Church

    EIN 046000514 · Headquarters: Medford, MA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  71. West Newbury Garden Club

    EIN 046364739 · Headquarters: west newbury, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. West Newbury Parent Teacher Organization

    EIN 223195631 · Headquarters: West Newbury, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. West of the River Chamber of Commerce

    EIN 262996565 · Headquarters: WEST SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. West Parish Garden Cemetery Inc

    EIN 043281872 · Headquarters: ANDOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  75. West Roxbury Community Centers Inc

    EIN 042704043 · Headquarters: WEST ROXBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. West Roxbury Rotary Club

    EIN 364671588 · Headquarters: west roxbury, MA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  77. West Roxbury-Dorchester Lodge AF & AM

    EIN 237165993 · Headquarters: Dedham, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. West Side Benevolent Circle Inc

    EIN 043141542 · Headquarters: MANSFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. West Springfield High School Alumni Association

    EIN 510171474 · Headquarters: West Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  80. West Springfield High School Xc & T Rack and Field Booster Club

    EIN 423032311 · Headquarters: West Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. West Springfield Municipal Management and Professionals Assoc

    EIN 464551377 · Headquarters: West Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. West Springfield Patrolmens Association

    EIN 465426563 · Headquarters: WEST SPRINGFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. West Springfield Teen Center Inc

    EIN 043065156 · Headquarters: WEST SPRINGFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  84. West Springield Fish & Game Club Inc

    EIN 046291660 · Headquarters: Feeding Hills, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. West Virginia Association for Cave Studies Inc

    EIN 556036078 · Headquarters: Medford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. West Virginia Prosperity Group Inc

    EIN 994900507 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. West Yarmouth Library Assoc

    EIN 046130573 · Headquarters: West Yarmouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Westborough Athletic Booster Assoc Inc

    EIN 042775029 · Headquarters: Westborough, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Westborough Community Chorus Inc

    EIN 222854742 · Headquarters: Westborough, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. Westborough Education Association C/o Donna Avery

    EIN 237133955 · Headquarters: WESTBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Westborough Fine Arts Education Association Inc

    EIN 222534874 · Headquarters: WESTBOROUGH, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Westborough Food Pantry Inc

    EIN 043123555 · Headquarters: Westborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Westborough Historical Society

    EIN 237219755 · Headquarters: Westborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  94. Westborough Police Superior Officers Union

    EIN 454264359 · Headquarters: Westborough, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Westborough Professional Firefighter

    EIN 042940750 · Headquarters: WESTBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. Westborough Rangers Youth Football and Cheering Organization Inc

    EIN 222642691 · Headquarters: WESTBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  97. Westborough Rotary Fund Inc

    EIN 043426463 · Headquarters: WESTBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. Western Ma Chapter National Tooling & Machine Association

    EIN 237368207 · Headquarters: FEEDING HILLS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Western Ma Chapter Neca

    EIN 042160716 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Western Ma Field Hockey Officials Assoc

    EIN 933008198 · Headquarters: Agawam, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

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