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. Cape Cod Theatre Company | Harwich Junior Theatre

    EIN 300001983 · Headquarters: West Harwich, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Cape Cod Womens Hockey League

    EIN 043398623 · Headquarters: WAQUOIT, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  3. Cape Cod Writers' Center Inc

    EIN 042624824 · Headquarters: OSTERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Cape Cod Young Men's Christian Association Inc

    EIN 042394925 · Headquarters: Hyannis, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Cape Cod Zen Center

    EIN 200149788 · Headquarters: Barnstable, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Capt Kyle R Van De Giesen Memorial Award Fund

    EIN 016275092 · Headquarters: North Attleboro, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Captain Forbes House Museum

    EIN 046516086 · Headquarters: Milton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Cardinal Brook Trust

    EIN 043050557 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Cardinal Cushing Centers Inc

    EIN 042104871 · Headquarters: HANOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Cardinal Cushing Council Bldg

    EIN 042601200 · Headquarters: Sagamore, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Cardinal Spellman Assembly 407

    EIN 901510024 · Headquarters: Wollaston, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  12. Care Dimensions

    EIN 222873792 · Headquarters: Danvers, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Care Net Pregnancy Resource Center of North Central Massachusetts Inc

    EIN 042597799 · Headquarters: FITCHBURG, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Careerformation Services Inc

    EIN 521321720 · Headquarters: Williamsburh, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. Carl J Shapiro Institute for Education and Research at Harvard Medical School

    EIN 043326928 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  16. Carlisle Elderly Housing Association Inc

    EIN 042695253 · Headquarters: CARLISLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. Carlisle Firefighters Relief Association Inc

    EIN 042934075 · Headquarters: Carlisle, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Carlisle Historical Society Inc

    EIN 510178512 · Headquarters: Carlisle, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Carlisle Kids' House Inc

    EIN 042744181 · Headquarters: CARLISLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  20. Carlisle Parent Teacher Organization C/o Katie Vachon Treasurer

    EIN 046130387 · Headquarters: CARLISLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Carlisle Police Association

    EIN 042691338 · Headquarters: CARLISLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. Carlisle Police Relief Association

    EIN 042701123 · Headquarters: CARLISLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Carlisle Police Union Loc 201

    EIN 800993069 · Headquarters: CARLISLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Carman Family Charitable Foundation

    EIN 046115611 · Headquarters: LONGMEADOW, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  25. Carmen a Schiavo Associates

    EIN 042606619 · Headquarters: EVERETT, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  26. Carney Academy Pto

    EIN 800427896 · Headquarters: New Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  27. Caroline & Sigmund Schott Fund

    EIN 112856561 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  28. Caroline Blanton Thayer Charitable Trust #95-114770

    EIN 046676539 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  29. Carrie L Lummus Tr Uw

    EIN 046016036 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  30. Carroll Charitable Foundation

    EIN 222546670 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Carver Bog Dawgs Baseball Club Inc

    EIN 800686388 · Headquarters: Carver, MA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  32. Cary Street Swimming Pool Inc

    EIN 042530391 · Headquarters: NAHANT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Casa Cultural Dominicana De Worcester Inc

    EIN 841777188 · Headquarters: Paxton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Casa Do Benfica No 27 Inc

    EIN 593816851 · Headquarters: NEW BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Casa Latina Inc

    EIN 222477843 · Headquarters: FLORENCE, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  36. Casa Nueva Vida

    EIN 043012063 · Headquarters: JAMAICA PLAIN, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  37. Case High Association of Music Parents of Swansea Inc

    EIN 222945774 · Headquarters: Swansea, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Case Management Society of New England

    EIN 043159207 · Headquarters: DUXBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Casimir Pulaski PTO

    EIN 831689322 · Headquarters: New Bedford, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  40. Cassie Pearson Memorial Scholarship Fund Inc

    EIN 853980045 · Headquarters: Dighton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Castle Island Association

    EIN 042921546 · Headquarters: BRAINTREE, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  42. Castle Square Tenants Organization Inc

    EIN 043016145 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Casual Business Group

    EIN 472945214 · Headquarters: Acushnet, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  44. Cat Fanciers Federation Inc

    EIN 050347664 · Headquarters: Woburn, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Catamount Sportsmens Club of Col Rain Inc

    EIN 042561536 · Headquarters: Colrain, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Cataumet Cemetery Association

    EIN 046109052 · Headquarters: Cataumet, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Catch the Science Bug Foundation Inc

    EIN 550878534 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Catherine E Kennedy Education Fund

    EIN 611727354 · Headquarters: North Easton, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  49. Catholic Association of Forester

    EIN 901183801 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Catholic Association of Foresters

    EIN 041589950 · Headquarters: Braintree, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. Catholic Association of Foresters

    EIN 222785149 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Catholic Association of Foresters

    EIN 223208298 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Catholic Association of Foresters

    EIN 223208376 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Catholic Association of Foresters

    EIN 237531440 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Catholic Association of Foresters

    EIN 237531443 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Catholic Association of Foresters

    EIN 237531445 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Catholic Association of Foresters

    EIN 237531449 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Catholic Association of Foresters

    EIN 237531450 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Catholic Association of Foresters

    EIN 237531453 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Catholic Association of Foresters

    EIN 237531477 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Catholic Association of Foresters

    EIN 237531480 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Catholic Association of Foresters

    EIN 237531485 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Catholic Association of Foresters

    EIN 237531502 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Catholic Association of Foresters

    EIN 237531521 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Catholic Charities Boston

    EIN 042534041 · Headquarters: SOUTH BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Catholic Charities of the Diocese of Fall River Massachusetts Inc

    EIN 042106394 · Headquarters: FALL RIVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Catholic Charities Worcester County

    EIN 042103979 · Headquarters: West Boylston, MA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Catholic Communications Corporation

    EIN 042232294 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  69. Catholic Lawyers Guild of the Archdiocese of Boston Inc

    EIN 043003173 · Headquarters: Winthrop, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Catholic Life Conference of The

    EIN 843249123 · Headquarters: SPRINGFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Catholic Order of Foresters

    EIN 237581116 · Headquarters: New Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  72. Catholic Order of Foresters

    EIN 237581808 · Headquarters: Wareham, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Catholic Order of Foresters

    EIN 237582235 · Headquarters: Bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. Catholic Press of the Fall River Diocese

    EIN 042221363 · Headquarters: FALL RIVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-T

  75. Catholic Purchasing Services Inc

    EIN 133272443 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  76. Catholic Social Services Inc

    EIN 043276325 · Headquarters: South Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Cattel Andriski Foundation

    EIN 042593966 · Headquarters: PETERSHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  78. Cc Legacy Fund Corp

    EIN 991628717 · Headquarters: Wilmington, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Cca Clinical Holding Company Inc

    EIN 332709766 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. Cca Foundation Inc

    EIN 934772832 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Cca Holding Company Inc

    EIN 332663201 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Ccl Ma Northshore

    EIN 823847693 · Headquarters: Marblehead, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Ccsr Inc

    EIN 830733580 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Cdcsb Sumner Block Inc

    EIN 931530511 · Headquarters: GREAT BARRINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Cdcsb Thornewood Inc

    EIN 992608688 · Headquarters: GREAT BARRINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Cecelia's Adventures Inc

    EIN 850779206 · Headquarters: ATTLEBORO, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  87. Cecil Fogg Tjroberts Post 78 Al

    EIN 043177100 · Headquarters: HYDE PARK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Cedar Knoll Cemetery Association Inc

    EIN 042664063 · Headquarters: EAST TAUNTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  89. Cedar Pond Society Inc

    EIN 042740458 · Headquarters: Boxford, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. Cedarville-sagamore Business Association Inc

    EIN 043044171 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Cedarwood Neighborhood Association Inc

    EIN 822267030 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Cele H & William B Rubin Family Fund

    EIN 116026235 · Headquarters: WELLESLEY HILLS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. Celebrate Kate

    EIN 822000205 · Headquarters: Bernardston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Celebrate the Beauty of Every Child

    EIN 844088045 · Headquarters: Westport, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Center for Child Care and Development Inc

    EIN 042504641 · Headquarters: Fall River, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Center for Church and Prison

    EIN 800467658 · Headquarters: Dorchester, MA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  97. Center for Digital Resilienceinc

    EIN 824827421 · Headquarters: NORTHAMPTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Center for Grounded Action Inc

    EIN 992074787 · Headquarters: BROOKLINE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Center for Hand-counted Paper Ballots

    EIN 800273040 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  100. Center for Information Technology and Society

    EIN 222861389 · Headquarters: Melrose, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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