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. Knights of Columbus Building Association of Lynnfield Inc

    EIN 042600551 · Headquarters: LYNNFIELD, MA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Knights of Columbus Building Association of Sudbury Inc

    EIN 991716871 · Headquarters: Sudbury, MA, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Knights of Columbus Building Association of Waltham Inc

    EIN 042636774 · Headquarters: Waltham, MA, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Knights of Columbus Chelsea Council #83

    EIN 237142189 · Headquarters: CHELSEA, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Knights of Columbus Council

    EIN 461516069 · Headquarters: Wilmington, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. KNIGHTS OF COLUMBUS Council 12710

    EIN 912069063 · Headquarters: Sutton, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Knights of Columbus Council 128 Melrose

    EIN 237178875 · Headquarters: Melrose, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Knights of Columbus Council 14947

    EIN 271985791 · Headquarters: North Dighton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Knights of Columbus Council 16550

    EIN 814049784 · Headquarters: REVERE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Knights of Columbus Council 287

    EIN 862569238 · Headquarters: Concord, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Knights of Columbus Council 94

    EIN 237542569 · Headquarters: LEXINGTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Knights of Columbus Dba Belmont Council 332

    EIN 042260386 · Headquarters: BELMONT, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Knights of Columbus Dba Belmont Council Building Assn

    EIN 042529210 · Headquarters: BELMONT, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Knights of Columbus Fr Wm F Davit Council 2412

    EIN 237542682 · Headquarters: lenox, MA, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. Knights of Columbus Home Association of Fitchburg

    EIN 046036752 · Headquarters: FITCHBURG, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Knights of Columbus Home Association of Leominster Inc

    EIN 042547283 · Headquarters: LEOMINSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Knights of Columbus Inc

    EIN 237142336 · Headquarters: METHUEN, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990

  18. Knights of Columbus Massachusetts State Council Charity Fund

    EIN 040616108 · Headquarters: NORWOOD, MA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Knights of Columbus Mount Everett Council 513

    EIN 237542647 · Headquarters: great barrington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Knights of Columbus Norwood Council 252

    EIN 237142213 · Headquarters: NORWOOD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Knights of Columbus of Fitchburg Council 99

    EIN 237109003 · Headquarters: FITCHBURG, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Knights of Columbus Reverned John R Crispo Assembly 1602

    EIN 510209164 · Headquarters: Burlington, MA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Knights of Columbus Robert Goffin Building Asociation

    EIN 861087438 · Headquarters: Mashpee, MA, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  24. Knights of Columbus Roxbury Council 123

    EIN 237542587 · Headquarters: Stoneham, MA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Knights of Columbus Valencia Council 80

    EIN 237142188 · Headquarters: Milford, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Knights of Peter Claver

    EIN 352766828 · Headquarters: CHICOPEE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Knights of Pythias Domain

    EIN 041511080 · Headquarters: STOUGHTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  28. Knights of Pythias Domain of Mass

    EIN 237583421 · Headquarters: STOUGHTON, MA, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  29. Knights of Pythias Domain of R

    EIN 042626044 · Headquarters: STOUGHTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  30. Knights of Pythias Domain of T Es

    EIN 046109070 · Headquarters: STOUGHTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  31. Knights of Pythias of Massachusetts 72

    EIN 237583429 · Headquarters: LYNN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Knights of Pythias of Massachusetts Humanitarian Foundation Inc

    EIN 043535194 · Headquarters: Stoughton, MA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  33. Knights of St Stanislaus Inc

    EIN 046061945 · Headquarters: CHICOPEE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Knights of Thermopylae Inn of Court

    EIN 474871859 · Headquarters: Boston, MA, US · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Knights of Vartan Ararat Inc

    EIN 237616089 · Headquarters: BELMONT, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Knights of Vartan Inc

    EIN 237616090 · Headquarters: WEST BOYLSTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Knights of Vartan Inc

    EIN 237616091 · Headquarters: Methuen, MA, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  38. Knights Templar of the United States of America

    EIN 041511517 · Headquarters: NEWTONVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Knights Templar of the United States of America

    EIN 042042684 · Headquarters: BOSTON, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Knights Templar of the United States of America

    EIN 042492036 · Headquarters: Newburyport, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  41. Knights Templar of the United States of America

    EIN 043064046 · Headquarters: North Reading, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. Knights Templar of the United States of America

    EIN 046051150 · Headquarters: new bedford, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Knights Templar of the United States of America

    EIN 046057813 · Headquarters: Lowell, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Knights Templar of the United States of America

    EIN 046169121 · Headquarters: Natick, MA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  45. Knights Templar of the United States of America

    EIN 237128488 · Headquarters: Somerset, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Knights Templar of the United States of America

    EIN 237148340 · Headquarters: cummington, MA, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  47. Knights Templar of the United States of America

    EIN 237152631 · Headquarters: WAKEFIELD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Knights Templar of the United States of America

    EIN 237152633 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Knights Templar of the United States of America

    EIN 237154452 · Headquarters: BROCKTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Knights Templar of the United States of America

    EIN 237157380 · Headquarters: Gloucester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Knights Templar of the United States of America

    EIN 237157981 · Headquarters: Concord, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Knights Templar of the United States of America

    EIN 237164222 · Headquarters: SALEM, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Knights Templar of the United States of America

    EIN 237167065 · Headquarters: MILFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Knights Templar of the United States of America

    EIN 237167330 · Headquarters: Weymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Knights Templar of the United States of America

    EIN 237167926 · Headquarters: Gloucester, MA, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  56. Knights Templar of the United States of America

    EIN 237619458 · Headquarters: Feeding Hills, MA, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Knights Templar of the United States of America

    EIN 237619467 · Headquarters: Attleboro, MA, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  58. Knights Templar of the United States of America

    EIN 237619470 · Headquarters: Gloucester, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  59. Knights Templar of the United States of America

    EIN 273121752 · Headquarters: Centerville, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Knights Templar of the USA

    EIN 042040687 · Headquarters: Boston, MA, USA · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990

  61. Knights Templar of The USA

    EIN 046048031 · Headquarters: Dedham, MA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Knights Youth Football and Cheer Inc

    EIN 834699165 · Headquarters: Acton, MA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. Knightsandladiesofkaleva

    EIN 046148555 · Headquarters: LANCASTER, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  64. Knollmere Beach Association

    EIN 237425670 · Headquarters: Fairhaven, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Knollwood Cemetery

    EIN 042060551 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Knopf Family Foundation Inc

    EIN 571179990 · Headquarters: WAKEFIELD, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  67. Knouz Inc

    EIN 992884055 · Headquarters: Boston, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Know Your Neighbor Woburn

    EIN 922356867 · Headquarters: Woburn, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Knowing Hope Inc

    EIN 473315850 · Headquarters: Andover, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Knowledge Base Inc

    EIN 462614825 · Headquarters: EASTHAMPTON, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  71. Knowledge Exchange Network Manipur

    EIN 473502884 · Headquarters: Shrewsbury, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Knowledge Futures Inc

    EIN 843111259 · Headquarters: CAMBRIDGE, MA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Knowlege Academy of Andover

    EIN 273680992 · Headquarters: MIDDLETON, MA, USA · Education · Latest available filing year: 2013 · Primary form: IRS Form 990

  74. Knowles Johnson Institute of Graduate Studies Corporation

    EIN 921280101 · Headquarters: Rockport, MA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Knowlton Foundation for the Elderly Inc

    EIN 046060834 · Headquarters: GARDNER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. Knowneuropsychology

    EIN 883957714 · Headquarters: Holden, MA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Knox Trail & Sno Riders Inc

    EIN 010810884 · Headquarters: EAST OTIS, MA, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Knox Trail Historical Society Inc

    EIN 237435546 · Headquarters: Wilbraham, MA, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  79. Knox Trail Riders Association Inc

    EIN 222592943 · Headquarters: Southampton, MA, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  80. Ko Theater Works Inc

    EIN 043124727 · Headquarters: Belchertown, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Kobo Inc

    EIN 371934868 · Headquarters: CAMBRIDGE, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Kodaly Center of America

    EIN 042616982 · Headquarters: Wellesley, MA, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  83. Kodaly Music Institute Inc

    EIN 873992381 · Headquarters: BOSTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  84. Kodeconnect Inc

    EIN 811629400 · Headquarters: BROCKTON, MA, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  85. Koha Girls Inc

    EIN 830808525 · Headquarters: Somerset, MA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Koinadugu Development Corporation

    EIN 300875066 · Headquarters: Randolph, MA, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Koinonia Collaborative Institute Inc

    EIN 475058453 · Headquarters: Brookline, MA, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  88. Kojabashian Foundation Inc

    EIN 472556319 · Headquarters: HUDSON, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  89. Kokrobitey School Inc C/o Museum Nat Center African-amer

    EIN 043163531 · Headquarters: ROXBURY, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  90. Kolam Foundation Inc

    EIN 820595818 · Headquarters: Tyngsboro, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  91. Kolda Development Foundation Inc

    EIN 853205767 · Headquarters: Dorchester Center, MA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Koleinu Bostons Jewish Community Chorus

    EIN 270422542 · Headquarters: Brookline, MA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Kollel of Greater Boston Inc

    EIN 042932859 · Headquarters: BRIGHTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Kolow Charitable Foundation

    EIN 046924992 · Headquarters: Wayland, MA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  95. Komera Inc

    EIN 271581674 · Headquarters: JAMAICA PLAIN, MA, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  96. Kometa Serbian Children's Program Inc

    EIN 010898262 · Headquarters: NEWTON, MA, USA · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  97. Konbit Football Ayiti Inc

    EIN 262175323 · Headquarters: Housatonic, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Konbit Pou Ayiti Inc

    EIN 201845370 · Headquarters: GLOUCESTER, MA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2010 · Primary form: IRS Form 990

  99. Kool Kids Project Org Inc

    EIN 471684892 · Headquarters: Brockton, MA, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  100. Koop Foundation Inc

    EIN 020474866 · Headquarters: Boston, MA, US · Medical Research · Latest available filing year: 2015 · Primary form: IRS Form 990-N

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