Nonprofits in Massachusetts

Nonprofits in Massachusetts. Browse 52,168 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. Sinaifederation Charitable Foundation Inc

    EIN 364525930 · Headquarters: SPRINGFIELD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990

  2. Sincere Foundation Inc

    EIN 920798870 · Headquarters: FRAMINGHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  3. Sine Nomine Inc

    EIN 020561837 · Headquarters: Westport, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Sing 2 Give Inc

    EIN 464288241 · Headquarters: Dedham, MA, USA · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  5. Singing Beach Club Inc

    EIN 042003755 · Headquarters: MANCHESTER, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Singing Bowl Inc

    EIN 271296589 · Headquarters: Concord, MA, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  7. Singing Field Foundation Inc C/o Kahn Litwin Renza and Co Ltd

    EIN 043425998 · Headquarters: WALTHAM, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  8. Single Flower Sangha Inc

    EIN 043272809 · Headquarters: Groton, MA, US · Religion Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  9. Single Life Tsl Inc

    EIN 043000028 · Headquarters: Lowell, MA, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. Single Mothers Initiative Inc

    EIN 043330098 · Headquarters: Needham, MA, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  11. Single Parent Family Outreach Inc

    EIN 043451920 · Headquarters: Brookline, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Single Volunteers Boston Inc

    EIN 208688716 · Headquarters: Boston, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  13. Singletary Rod & Gun Club Inc

    EIN 046068356 · Headquarters: Oxford, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Singpositive Inc

    EIN 814116425 · Headquarters: Jamaica Plain, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Sino Amer Pharmaceutical Profession

    EIN 934136992 · Headquarters: Jamaica Plain, MA, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Sino-american Bridge for Education & Health Inc

    EIN 208649460 · Headquarters: MIDDLEBORO, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  17. Sino-american Clean Energy Research Association

    EIN 473727097 · Headquarters: West Roxbury, MA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  18. Sino-american Medical Association Inc

    EIN 471807496 · Headquarters: Newton, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Siochain Properties Inc

    EIN 043488694 · Headquarters: EAST BOSTON, MA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Sioga Club of Berkshire County Inc George B Crane Memorial Center

    EIN 042620389 · Headquarters: PITTSFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  21. SIP Forum LLC

    EIN 550891386 · Headquarters: North Andover, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Sippican Choral Society

    EIN 222530352 · Headquarters: Marion, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Sippican Historical Society

    EIN 046125635 · Headquarters: Marion, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  24. Sippican Lands Trust Inc

    EIN 222795446 · Headquarters: MARION, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Sippican Rod and Gun Club Inc

    EIN 042493724 · Headquarters: ROCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Sippican Tennis Club

    EIN 042189006 · Headquarters: Marion, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Sippican Womans Club of Marion Mass

    EIN 043370241 · Headquarters: Marion, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Sipson Island Trust Inc

    EIN 842731899 · Headquarters: SOUTH ORLEANS, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Sir Network

    EIN 332958767 · Headquarters: Whitman, MA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Sir Syed Education Society of North America

    EIN 455304253 · Headquarters: LEXINGTON, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Sirad Foundation Inc

    EIN 043484554 · Headquarters: Cambridge, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  32. Sirius Inc

    EIN 042652930 · Headquarters: SHUTESBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. Sis' Place Inc

    EIN 994211467 · Headquarters: EAST LONGMEADOW, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Sisama Inc

    EIN 272474958 · Headquarters: Millis, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Sisha USA

    EIN 452988963 · Headquarters: Boston, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  36. Sisson Elementary Pto Inc

    EIN 934473551 · Headquarters: Lynn, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Sistahs with Substance Corp

    EIN 862108517 · Headquarters: MATTAPAN, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Sister-to-sister Inc

    EIN 043533431 · Headquarters: Newburyport, MA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  39. Sisterhood Movement Inc

    EIN 814875629 · Headquarters: Randolph, MA, USA · Employment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  40. Sisters Blooming

    EIN 881382254 · Headquarters: ANDOVER, MA, US · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  41. Sisters for Peace Foundation

    EIN 466959020 · Headquarters: GT BARRINGTON, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Sisters Helping Each-other

    EIN 824668141 · Headquarters: Dorchester, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Sisters in Spirit Inc

    EIN 331753923 · Headquarters: Attleboro Falls, MA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Sisters in Struggle

    EIN 270099994 · Headquarters: Springfield, MA, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  45. Sisters of Providence Health System Inc

    EIN 043398374 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990

  46. Sisters of the Eucharistic Heart of Jesus

    EIN 412073980 · Headquarters: Boston, MA, US · Religion Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  47. Sisters Unchained Inc

    EIN 851294087 · Headquarters: JAMAICA PLAIN, MA, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Sistersatheart Inc

    EIN 813187861 · Headquarters: NORTH ATTLEBORO, MA, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Sistghs of Maat

    EIN 202086060 · Headquarters: Dorchester, MA, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  50. Sisucare

    EIN 264339915 · Headquarters: Hubbardston, MA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  51. SIT Rep Criitical Inc

    EIN 331988003 · Headquarters: Hanover, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  52. Sites Alive Foundation Inc

    EIN 300081304 · Headquarters: MARBLEHEAD, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  53. Sitters for Scholars Inc

    EIN 465324408 · Headquarters: Boston, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Six Projects Corp

    EIN 812629387 · Headquarters: Harwich, MA, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  55. Six10 AED Inc

    EIN 831049929 · Headquarters: Norfolk, MA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Six13 Guard Ma

    EIN 332391199 · Headquarters: Brighton, MA, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Sixseeds Inc

    EIN 421732107 · Headquarters: LEXINGTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990

  58. Sixteen Roses Foundation

    EIN 871460831 · Headquarters: CHELSEA, MA, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  59. Sixteenth Association Properties Inc

    EIN 043517858 · Headquarters: CHICOPEE, MA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Sixth Association Properties Inc

    EIN 043223566 · Headquarters: CHICOPEE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Sixth Ring Service Dogs

    EIN 331342804 · Headquarters: WHITMAN, MA, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Siyanda Inc

    EIN 932097104 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Siypnow Corporation

    EIN 821434218 · Headquarters: BROCKTON, MA, US · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  64. Sizer School Foundation Inc

    EIN 043573636 · Headquarters: FITCHBURG, MA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Sjm Foundation Inc

    EIN 462230142 · Headquarters: WAKEFIELD, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  66. Skal Club of Boston

    EIN 237162932 · Headquarters: BOSTON, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  67. Skal Philanthropic Fund

    EIN 464145238 · Headquarters: BOSTON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  68. Skate for the 22 Foundation Inc

    EIN 475529681 · Headquarters: BURLINGTON, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Skating Club of Amherst Inc

    EIN 510189842 · Headquarters: HADLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Skating Club of Andover Inc

    EIN 141881299 · Headquarters: Haverhill, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. Skating Club of Natick

    EIN 020659939 · Headquarters: Natick, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Skating for Hope Inc

    EIN 463561429 · Headquarters: WESTBOROUGH, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Sketchygoichie Draw Inc

    EIN 334012265 · Headquarters: Westport, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Ski Bees Incorporated

    EIN 237134600 · Headquarters: Millville, MA, USA · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-EZ

  75. Ski Club Hochgebirge

    EIN 394116814 · Headquarters: Webster, MA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Ski Ward Community Race Team

    EIN 043435340 · Headquarters: Northborough, MA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  77. Ski Ward Community Race Team Inc

    EIN 472552240 · Headquarters: NORTHBOROUGH, MA, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  78. Skillbury Makerspace Inc

    EIN 990832611 · Headquarters: North Brookfield, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Skilled Immigrants in America Corporation

    EIN 810845758 · Headquarters: NORTH ANDOVER, MA, USA · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990

  80. Skin Cancer Outcomes Consortium

    EIN 832663169 · Headquarters: CAMBRIDGE, MA, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Skin Talk

    EIN 464690327 · Headquarters: Wilbraham, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  82. Skoden Foundation

    EIN 832939204 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  83. Skop Festivals Inc

    EIN 452889268 · Headquarters: Chelmsford, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Sky Philanthropy Inc

    EIN 881545774 · Headquarters: NEWTON, MA, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Sky View Middle School Parent Teacher Organization

    EIN 200356824 · Headquarters: LEOMINSTER, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  86. Skye High USA Foundation Limited

    EIN 993290620 · Headquarters: Pittsfield, MA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Skylight Astronomical Society Inc

    EIN 043505175 · Headquarters: Stow, MA, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  88. Skylight Theater Collective Inc

    EIN 833376720 · Headquarters: N Easton, MA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. Skyline Technical Fund Inc C/o Karen Duffy

    EIN 202649211 · Headquarters: PRINCETON, MA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Skyllers Dog and Cat Rescue

    EIN 262610098 · Headquarters: Lakeville, MA, US · Animal Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  91. Skylur J Spagone Memorial Fund Inc

    EIN 043521827 · Headquarters: East Bridgewater, MA, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  92. Skys the Unlimited Ltd

    EIN 043050574 · Headquarters: Sudbury, MA, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  93. Slanetz Science Foundation

    EIN 113238116 · Headquarters: BOSTON, MA, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  94. Slater Family Foundation

    EIN 856726770 · Headquarters: MILTON, MA, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  95. Slay 4 a Cause Inc

    EIN 392645669 · Headquarters: Mattapan, MA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Slc Pay It Forward

    EIN 814867099 · Headquarters: CONCORD, MA, USA · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  97. Sleeping Children Around the World - USA Inc

    EIN 273609416 · Headquarters: WELLESLEY, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Sleeping Giant Young Equestrian Fundinc

    EIN 510528981 · Headquarters: HUNTINGTON, MA, USA · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  99. Sleeping Weazel Inc

    EIN 134138617 · Headquarters: Boston, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Sleepy Lemur Quality Enterprises Inc

    EIN 821853209 · Headquarters: North Amherst, MA, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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