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. Calphad Inc

    EIN 042589876 · Headquarters: SHREWSBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  2. Cambridge Black Pastors Alliance Inc

    EIN 822092330 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  3. Cambridge Boat Club Co Alden Zecha

    EIN 041144490 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Cambridge Center for Behavioral Studies Inc

    EIN 042751296 · Headquarters: LITTLETON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Cambridge Chamber of Commerce

    EIN 041144780 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. Cambridge Children's Care Foundation Inc

    EIN 042534244 · Headquarters: WAKEFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Cambridge College Employees Federation

    EIN 352556649 · Headquarters: BOSTON, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. Cambridge Firefighter's Relief Association

    EIN 046038786 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  9. Cambridge Global Arts Inc

    EIN 464808088 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  10. Cambridge Holistic Emergency Alternative Response Team Inc

    EIN 873574947 · Headquarters: CAMBRIDGE, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  11. Cambridge Masonic Hall Association

    EIN 041144865 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  12. Cambridge Montessori School Inc

    EIN 042321011 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Cambridge Office for Tourism Inc

    EIN 043242219 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Cambridge Police Superior Officers Association

    EIN 046407198 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Cambridge Public Employees Dental and Vision Fund

    EIN 042762048 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Cambridge Street Center Inc

    EIN 042936226 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  17. Cambridge Street Community Development Corporation

    EIN 222496921 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Cambridge Symphony Orchestra

    EIN 042674877 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Cambridge Tennis Club

    EIN 042206897 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Cambridge Young Mens Christian Association

    EIN 042103960 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Cambridge Youth Volleyball Inc

    EIN 392177327 · Headquarters: PITTSFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Cambridgeport Child Care Inc

    EIN 237400559 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Camel Hair and Cashmere Institute of America Inc

    EIN 133221743 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Camino Verde Inc

    EIN 208563386 · Headquarters: Concord, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Camp Ashmere Inc

    EIN 043372881 · Headquarters: NORTH ADAMS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Camp Bauercrest

    EIN 046002096 · Headquarters: Amesbury, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  27. Camp Haiastan Of The Armenian Youth Federation Inc

    EIN 042396466 · Headquarters: Franklin, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  28. Camp Hale Alumini Association

    EIN 042689303 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. Camp Howe Inc

    EIN 042258213 · Headquarters: GOSHEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  30. Camp Jahn Association Inc

    EIN 042015397 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Camp Kee-wanee

    EIN 041400482 · Headquarters: Greenfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  32. Camp Lion of Lynn Ma Inc

    EIN 046072517 · Headquarters: Lynn, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  33. Camp Menotomy Trust

    EIN 046121691 · Headquarters: ARLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Camp Richards Campers Association

    EIN 237326198 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Camp Sunshine Day Inc Dba Reed Academy

    EIN 042541474 · Headquarters: FRAMINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Camp Wellville Inc

    EIN 222529348 · Headquarters: Fitchburg, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Camp Yavneh Inc

    EIN 046004710 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  38. Campbell Highlanders

    EIN 042898460 · Headquarters: ANDOVER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Campbell Institute Incorporated

    EIN 042930384 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  40. Campbell School Pto

    EIN 223043305 · Headquarters: DRACUT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. Campbell Transition Committee Inc C/o Verdolino & Lowey Pc

    EIN 884310436 · Headquarters: FOXBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  42. Canadian American Club of Massachusetts Inc

    EIN 222582457 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Canadian Entrepreneurs in New England Association

    EIN 463100448 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. Canal Digger Inc

    EIN 412772106 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Canal Kids Running Club Inc

    EIN 465202452 · Headquarters: Buzzards Bay, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  46. Canal Sportsmans Club Inc

    EIN 042826014 · Headquarters: BUZZARDS BAY, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Canstruction-boston

    EIN 474170925 · Headquarters: Salem, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  48. Cantilena Inc

    EIN 237357927 · Headquarters: Arlington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Canton Alliance for Public Education Inc

    EIN 043203076 · Headquarters: Canton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Canton Area Helpline Inc Co Steven V Rotella Cpa Pc

    EIN 222585336 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Canton Association of Business and Industry Inc

    EIN 237306949 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Canton Cable Access Corporation

    EIN 042780678 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Canton Community Band

    EIN 223087410 · Headquarters: MANSFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Canton Community Theatre Inc

    EIN 010565223 · Headquarters: CANTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Canton Educators Association

    EIN 264013582 · Headquarters: Canton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Canton Garden Club Inc

    EIN 043276591 · Headquarters: CANTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Canton Historical Society

    EIN 046064739 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Canton Residents for a Sustainable Equitable Future

    EIN 841849071 · Headquarters: Canton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Canton Youth Lacrosse Club Inc

    EIN 611669684 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Canty Family Chartiable Foundation Inc

    EIN 472638494 · Headquarters: E SANDWICH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  61. Cape & Islands Chapter IAEI

    EIN 043190623 · Headquarters: Middleboro, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Cape & Islands Emergency Medical Services System Inc

    EIN 042601510 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Cape & Islands Health Services Ii Inc

    EIN 043572408 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-T

  64. Cape and Islands Voter Issues Coalition Inc

    EIN 810950544 · Headquarters: BOURNE, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. Cape Ann Amateur Radio Association Inc

    EIN 042612032 · Headquarters: Gloucester, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Cape Ann Chamber of Commerce

    EIN 041371800 · Headquarters: GLOUCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Cape Ann Chapt No 896 Women of the Moose

    EIN 237520846 · Headquarters: gloucester, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  68. Cape Ann Commercial Fishermen's Loan Fund Inc

    EIN 042588840 · Headquarters: GLOUCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Cape Ann Figure Skating Club Inc

    EIN 043040804 · Headquarters: GLOUCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Cape Ann Fisheries Development Corporation C/o Massdevelopment

    EIN 043422217 · Headquarters: GLOUCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Cape Ann Shrine Club

    EIN 042599121 · Headquarters: WILMINGTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Cape Ann Sportsman's Club Inc

    EIN 046179712 · Headquarters: GLOUCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Cape Cod & Islands Association of Realtors Inc

    EIN 042315153 · Headquarters: West Yarmouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Cape Cod & Islands Council Inc Boy Scouts of America

    EIN 042141816 · Headquarters: YARMOUTH PORT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Cape Cod & Islands Farm Bureau

    EIN 046058158 · Headquarters: DENNISPORT, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Cape Cod Academy

    EIN 042592472 · Headquarters: OSTERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Cape Cod Advocates for the Disabled Inc

    EIN 842151830 · Headquarters: POCASSET, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  78. Cape Cod Art Association Inc

    EIN 046004847 · Headquarters: BARNSTABLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Cape Cod Astronomical Foundation

    EIN 226484952 · Headquarters: E FALMOUTH, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Cape Cod Canal Region Chamber of Commerce

    EIN 042667169 · Headquarters: BUZZARDS BAY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Cape Cod Center for the Environment and a Sustainable Economy Inc

    EIN 223171527 · Headquarters: PROVINCETOWN, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Cape Cod Chamber of Commerce

    EIN 041148920 · Headquarters: CENTERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Cape Cod Child Development Inc C/o David B Madoff Chapter 7 Trustee

    EIN 237324732 · Headquarters: FOXBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  84. Cape Cod Coast Guard Spouses Association

    EIN 833456103 · Headquarters: Buzzards Bay, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  85. Cape Cod Cranberry Growers Assoc

    EIN 046060947 · Headquarters: PLYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. Cape Cod Curling Club

    EIN 237327750 · Headquarters: Falmouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Cape Cod Disc Golf Club

    EIN 452215338 · Headquarters: Marstons Mills, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Cape Cod Dressage Association Inc

    EIN 222858816 · Headquarters: Centerville, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. Cape Cod Economic Development Council Inc

    EIN 043354621 · Headquarters: CENTERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Cape Cod Guang Ping Tai Ji Quan Club

    EIN 043285084 · Headquarters: Teaticket, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Cape Cod Hospital Auxiliary

    EIN 042595304 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Cape Cod Human Resources Association

    EIN 223363999 · Headquarters: Hyannis, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Cape Cod Human Services Inc

    EIN 042323506 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-T

  94. Cape Cod Live Steamers

    EIN 043200302 · Headquarters: Harwichport, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  95. Cape Cod Ma Local Chapter of the Democratic Socialists of America

    EIN 825259087 · Headquarters: Brewster, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Cape Cod Marine Trades Association Inc

    EIN 043013190 · Headquarters: E Falmouth, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  97. Cape Cod Moves Inc

    EIN 823570890 · Headquarters: East Falmouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  98. Cape Cod Pilgrim Memorial Association of Provincetown

    EIN 042157040 · Headquarters: PROVINCETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  99. Cape Cod Shrine Club

    EIN 046361989 · Headquarters: WILMINGTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Cape Cod Ski Club Inc

    EIN 042656706 · Headquarters: Hyannis, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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