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. Southern Thoracic Surgical Association

    EIN 363181838 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Southill Childrens Fund Inc

    EIN 042900865 · Headquarters: SOUTH BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Southwick Fire Fighters Auxillary

    EIN 371620023 · Headquarters: Southwick, MA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Southwick Firemans Association Inc

    EIN 042579742 · Headquarters: Southwick, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  5. Southwick Granville Senior Citizens Housing Inc

    EIN 042608718 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Southwick Historical Society

    EIN 042760309 · Headquarters: SOUTHWICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Southwick Police Association Inc

    EIN 042780844 · Headquarters: SOUTHWICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Southwick Recreation Center Inc

    EIN 042849161 · Headquarters: SOUTHWICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Southwick Senior Citizens Inc

    EIN 222564719 · Headquarters: Southwick, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Spay Inc

    EIN 042780595 · Headquarters: Vineyard Haven, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  11. SpeakOUT Boston

    EIN 042679978 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  12. Special Needs Arts Programs Inc

    EIN 222570673 · Headquarters: LEXINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Special Teams for Exceptional People Inc

    EIN 450835952 · Headquarters: CHELMSFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Special Townies Autistic and Exceptional Children Programs Inc

    EIN 042696004 · Headquarters: Charlestown, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Spectrum Singers Inc

    EIN 042711840 · Headquarters: Cambridge, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Spencer Branch of Ma Police Association

    EIN 042580963 · Headquarters: SPENCER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. Spencer East Brookfield Little League

    EIN 043252294 · Headquarters: SPENCER, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  18. Spero Charitable Foundation

    EIN 046183682 · Headquarters: LYNNFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. Spina Bifida Association of Greater New England

    EIN 237305430 · Headquarters: NATICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Spirit of Adventure Council Inc Boy Scouts of America #227

    EIN 043184713 · Headquarters: WOBURN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Spokenenglishacademy Inc

    EIN 863937990 · Headquarters: CHELMSFORD, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Sports Car Club of Americainc New

    EIN 046112557 · Headquarters: HAMPDEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Sprague Foundation Inc

    EIN 042946393 · Headquarters: NATICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Spri Inc

    EIN 363169484 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Spring Forum for Alternative Community Inc

    EIN 811189905 · Headquarters: Arlington, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  26. Spring Meadow Association of Responsible Tenants Inc

    EIN 043159643 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Spring Street Pre-school Inc

    EIN 042261065 · Headquarters: AMHERST, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Springfield Bus Monitors

    EIN 814572064 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  29. Springfield Chamber Players Inc

    EIN 871708957 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Springfield Council for Cultural and Community Affairs Inc

    EIN 042679906 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  31. Springfield Court 144 Royal Order of Jesters

    EIN 237167921 · Headquarters: DENNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Springfield Education Association Inc

    EIN 042935195 · Headquarters: Springfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Springfield Federation of Paraprofessionals Local 4098

    EIN 521237019 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Springfield Golden Age Club Inc

    EIN 042525059 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  35. Springfield Hobby Club Inc

    EIN 042214846 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  36. Springfield House Association of Kappa Kappa Gamma Fraternity Inc

    EIN 046055741 · Headquarters: LEOMINSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Springfield Housing Associates Inc

    EIN 042671133 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Springfield Innovation Hub Inc

    EIN 471053203 · Headquarters: Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  39. Springfield Masonic Temple Inc

    EIN 041859387 · Headquarters: FEEDING HILLS, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. Springfield Partners for Community Action Inc

    EIN 042374279 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  41. Springfield Preservation Trust

    EIN 237309820 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Springfield Public Forum Inc

    EIN 046190443 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Springfield Regional Chamber of Commerce Inc

    EIN 042281920 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Springfield Ski Club Inc

    EIN 042254777 · Headquarters: AGAWAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Springfield Sportsman's Club Inc

    EIN 042932022 · Headquarters: MONSON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Springfield St Railway Employees Credit Union

    EIN 041859607 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Springfield Stars

    EIN 821712624 · Headquarters: East Longmeadow, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Springfield Yacht and Canoe Club

    EIN 046130457 · Headquarters: AGAWAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Sprinkler Fitters & Appr Local Union 55

    EIN 041859910 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Sprinkler Fitters and Apprentices Local 550 Vacation Fund

    EIN 900450042 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Spu-societies for Pediatric Urology Inc

    EIN 832328147 · Headquarters: BEVERLY, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Squannacook River Runners

    EIN 043222541 · Headquarters: Groton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Squannacook River Sportsmens Club Inc

    EIN 995005865 · Headquarters: Townsend, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Squantum Yacht Club

    EIN 041860160 · Headquarters: QUINCY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Square Hope Inc

    EIN 472119990 · Headquarters: Duxbury, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  56. Square Wheels Square Dance Club Inc

    EIN 061368636 · Headquarters: SPRINGFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Srsd Online Inc

    EIN 815321306 · Headquarters: Dedham, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Ss Fisher Foundation C/o Jill Kushner

    EIN 416024302 · Headquarters: WESTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  59. St Ann's Home Inc

    EIN 042104866 · Headquarters: METHUEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. St Anne Credit Union

    EIN 041801000 · Headquarters: NEW BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990

  61. St Anne's Credit Union

    EIN 042128094 · Headquarters: Fall River, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. St Anne's Shrine Preservation Society Inc

    EIN 834035202 · Headquarters: FALL RIVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. St Botolph Club Foundation

    EIN 046156578 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. St Botolph Club Inc

    EIN 041801070 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. St Camillus Health Center Inc

    EIN 042446420 · Headquarters: Whitinsville, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  66. St Casimirs Lithuanian Choir Inc

    EIN 943482675 · Headquarters: Auburn, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  67. St Cleophas Council of Knights of Columbus 15756

    EIN 464102748 · Headquarters: South Barre, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. St Francis of Assisi Residences at Braintree Inc

    EIN 042589677 · Headquarters: BRAINTREE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. St Helena's House Inc C/o Maloney Properties Inc

    EIN 042760716 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. St Helenas Foundation of Boston Inc

    EIN 823687486 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. St Jeans Credit Union

    EIN 041801520 · Headquarters: SALEM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. St John Paul 11 Assembly 3503

    EIN 471912051 · Headquarters: Leominster, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. St John's Lodge AF & AM

    EIN 237170791 · Headquarters: Newburyport, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. St John's Nursery School Inc

    EIN 042484772 · Headquarters: WESTWOOD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. St Kateri Institute Inc

    EIN 882122559 · Headquarters: WILLIAMSTOWN, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. St Lawrence Foundation for Theological Education Inc

    EIN 160967912 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. St Lawrence Literary Society Inc

    EIN 041801787 · Headquarters: IPSWICH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. St Margarget's Hospital For Women

    EIN 042106333 · Headquarters: Dorchester, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. St Mark Community Education Program Inc

    EIN 800773653 · Headquarters: Dorchester, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. St Mary's Center for Women & Children Inc

    EIN 043201844 · Headquarters: Dorchester, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. St Mary's Credit Union Inc

    EIN 041802000 · Headquarters: MARLBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. St Mary's Immaculate Conception Cemetery and Chapel

    EIN 042772307 · Headquarters: Methuen, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. St Mary's Plaza Inc in Care of Maloney Properties Inc

    EIN 042718603 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. St Marys Cemetery Association

    EIN 043119174 · Headquarters: UXBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. St Michael Cemetery Corporation

    EIN 041474710 · Headquarters: ROSLINDALE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. St Michael Social Club Inc

    EIN 237319848 · Headquarters: NEW BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. St Michael's Home Association

    EIN 041802040 · Headquarters: LYNN, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  88. St Peter's Church Nursery School Inc

    EIN 042772619 · Headquarters: OSTERVILLE, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. St Sebastian School Fund Inc

    EIN 421552247 · Headquarters: NEEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. St Stephens Housing Corporation C/o St Stephen's Towers

    EIN 237212028 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  91. St Vincent De Paul Kitchen

    EIN 201369622 · Headquarters: CLARKSBURG, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  92. St Vincent Hospital Credit Union

    EIN 237304773 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  93. Stage and Picture Operators Local 775

    EIN 222568413 · Headquarters: Weymouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  94. Stage Door Players

    EIN 743222307 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  95. Stage Harbor Sailing School Inc

    EIN 222689695 · Headquarters: BREWSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Stage Harbor Yacht Club

    EIN 042392815 · Headquarters: BREWSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. Stamps Family Charitable Foundation Inc

    EIN 042943910 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  98. Stand Nc Inc

    EIN 923212913 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Standard Byke Company Norteast Factory

    EIN 473113008 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  100. Standardbred Owners of Massachusetts, Inc.

    EIN 043164258 · Headquarters: Plainville, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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