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. Historic Boston Incorporated

    EIN 046111819 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  2. Historic Classical

    EIN 271652854 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  3. Historic Haverhill Inc

    EIN 046168480 · Headquarters: HAVERHILL, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. Historic Northampton Inc

    EIN 046079243 · Headquarters: NORTHAMPTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Historic Salem Inc

    EIN 046191407 · Headquarters: SALEM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Historic West Harwich Schoolhouse

    EIN 853683374 · Headquarters: west harwich, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Historic Winslow House Association Inc

    EIN 510147206 · Headquarters: Marshfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Historical Natural History & Library Soc of Natick Inc

    EIN 042617537 · Headquarters: NATICK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Historical Piano Concerts Inc

    EIN 042932853 · Headquarters: Ashburnham, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  10. Historical Society of Greenfield

    EIN 046041992 · Headquarters: GREENFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Historical Society of Old Yarmouth Inc

    EIN 046071666 · Headquarters: YARMOUTH PORT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. Historical Society of Santuit and Cotuit

    EIN 237177654 · Headquarters: COTUIT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. Historical Society of Watertowninc

    EIN 046130160 · Headquarters: WATERTOWN, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. History Project Inc

    EIN 042737016 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Hitchcock Center for the Environment Inc

    EIN 042487748 · Headquarters: AMHERST, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Hitmen Baseball Corporation

    EIN 413854859 · Headquarters: Bridewater, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. Hobart Ames Foundation

    EIN 046009940 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Hoffman Family Foundation

    EIN 222677966 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. Hoi Dong of Huong Thua Thien-hue of New England Inc

    EIN 812196707 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  20. Hoisting and Portable Engineers Local 4 Apprentice & Training Fund

    EIN 042326141 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Holbrook Fire Fighters Local 1452

    EIN 046118897 · Headquarters: Holbrook, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Holbrook Historical Society Inc

    EIN 042642339 · Headquarters: Holbrook, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  23. Holbrook R & Sarah M Davis Foundation Inc

    EIN 042728175 · Headquarters: COTUIT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Holbrook Sportsmens Club Inc

    EIN 222622826 · Headquarters: HOLBROOK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Holbrook Union Cemetery Corp

    EIN 042132670 · Headquarters: HOLBROOK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Holden Association of Firefighters Inc

    EIN 020653972 · Headquarters: HOLDEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. Holden Historical Society Inc

    EIN 042615302 · Headquarters: Holden, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Holden Towers Tennis Club Inc

    EIN 042603786 · Headquarters: Worcester, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Holden Womans Club

    EIN 030488987 · Headquarters: Holden, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  30. Hollinghurst Tr Fbo Woodlawn Baptist Church

    EIN 046807276 · Headquarters: HANOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Holliston Historical Society

    EIN 046114493 · Headquarters: HOLLISTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  32. Holliston Lions Club Inc

    EIN 046073631 · Headquarters: Holliston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Holliston Newcomers Club

    EIN 042627413 · Headquarters: HOLLISTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Holliston Sportmens Association Inc

    EIN 046126398 · Headquarters: Holliston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Hollow Reed Inc

    EIN 042627865 · Headquarters: JAMAICA PLAIN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Holy Ghost Society of Fresh Pond Inc

    EIN 043325080 · Headquarters: Teaticket, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Holy Ghost Society of Santuit and Cotuit Inc

    EIN 113826411 · Headquarters: COTUIT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Holy Trinity Armenian Apostolic Church of Greater Boston Trust Fund

    EIN 510188147 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  39. Holy Trinity Home Association Inc

    EIN 911995121 · Headquarters: East Longmeadow, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Holyhood Cemetery Association

    EIN 041448440 · Headquarters: WEST ROXBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Holyoke Art Inc.

    EIN 932139917 · Headquarters: Holyoke, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Holyoke Bar Association Inc

    EIN 812173477 · Headquarters: Holyoke, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Holyoke Beagle Club Inc

    EIN 222825273 · Headquarters: WESTHAMPTON, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Holyoke Canoe Club

    EIN 041448565 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Holyoke Community College Foundationinc

    EIN 237181691 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Holyoke Credit Union

    EIN 041448660 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Holyoke Deputy Fire Chiefs Association

    EIN 821575429 · Headquarters: Holyoke, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Holyoke Health Center Inc

    EIN 042492730 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Holyoke Hospital Alumnae Association

    EIN 237333766 · Headquarters: West Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Holyoke Rotary Club Inc

    EIN 042061898 · Headquarters: Holyoke, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Holyoke Teachers Association Inc

    EIN 237274463 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Holyoke Young Men's Christian Association

    EIN 042192693 · Headquarters: HOLYOKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Holyoke-chicopee-springfield Head Start Inc

    EIN 042466767 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Home Builders & Remodelers Assoc

    EIN 042178350 · Headquarters: CHICOPEE, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  55. Home Builders and Remodelers Association of Massachusetts Inc

    EIN 042446663 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. Home Builders Assoc of Cape Cod Inc

    EIN 042599359 · Headquarters: WEST YARMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Home Builders Foundation of Western Massachusetts Inc

    EIN 043212851 · Headquarters: CHICOPEE, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  58. Home Building Corp of Reading Council Knights of Columbus Inc

    EIN 222684802 · Headquarters: READING, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. Home Care Alliance of Massachusetts Inc

    EIN 043035070 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Home for Aged Women in Salem

    EIN 042104318 · Headquarters: SALEM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  61. Homecoming Farm Inc

    EIN 020460697 · Headquarters: Brockton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Homefield Credit Union

    EIN 042393313 · Headquarters: NORTH GRAFTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Homeless Not Hopeless Inc

    EIN 260604808 · Headquarters: HYANNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Honey for Haiti

    EIN 821053533 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  65. Honor Society of Phi Kappa Phi

    EIN 621783986 · Headquarters: SALEM, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Hoof Paw and Claw

    EIN 831841434 · Headquarters: Orange, MA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  67. Hoop Star Team Doe Fund

    EIN 811897673 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  68. Hoopla Productions Inc

    EIN 473421372 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Hop Brook Community Club Inc

    EIN 042967538 · Headquarters: Tyringham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Hop Brook Protection Assoc Inc

    EIN 043170604 · Headquarters: SUDBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. Hope Collective Inc

    EIN 821165730 · Headquarters: Tewksbury, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  72. Hope Movement Minstries

    EIN 920418630 · Headquarters: Woolston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Hope Psychological Services Inc

    EIN 043094979 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Hope Worldwide Massachusetts Inc

    EIN 825498667 · Headquarters: Framingham, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Hopedale Charitable Corporation

    EIN 046041089 · Headquarters: Hopedale, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Hopedale Community House Inc

    EIN 042133252 · Headquarters: Hopedale, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  77. Hopedale Country Club Inc

    EIN 042172615 · Headquarters: HOPEDALE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Hopedale Friends of Elders Inc

    EIN 042976602 · Headquarters: Hopedale, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Hopedale High School Alumni Association

    EIN 046134141 · Headquarters: HOPEDALE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  80. Hopefully Well Affected Club

    EIN 046130162 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Hopes Closet Boutique Inc

    EIN 464505001 · Headquarters: Weymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  82. Hopkinton Lions Club

    EIN 851829760 · Headquarters: HOPKINTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Hopkinton Lions Club Foundation

    EIN 510151025 · Headquarters: HOPKINTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Hopkinton Sportsmen's Association

    EIN 042374892 · Headquarters: Hopkinton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Hopkinton Volleyball Club

    EIN 872887540 · Headquarters: HOPKINTON, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  86. Horace A Moses Foundation C/O Boston Foundation Inc

    EIN 042109862 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Horizon Club Inc

    EIN 042763752 · Headquarters: Newburyport, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Horological Heritage Foundation

    EIN 392235337 · Headquarters: Huntington, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Horseshoe Lake Hunting & Fishing Club

    EIN 430818463 · Headquarters: UXBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Hospital Thrift Shop Inc

    EIN 042208869 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Hospitality Asset Managers Association

    EIN 900087162 · Headquarters: N SCITUATE, MA, USA · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990

  92. Hospitality Educators Association of Texas

    EIN 742774538 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  93. Houghs Neck Community Council Inc

    EIN 046087567 · Headquarters: QUINCY, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Hour Glass Foundation

    EIN 046130164 · Headquarters: SHREWSBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  95. Housatonics Barber Shop Chorus

    EIN 223062183 · Headquarters: Sheffield, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. House and Garden Club of Wellesley

    EIN 042767261 · Headquarters: WELLESLEY, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. House of Deliverance NT Church of God

    EIN 222943679 · Headquarters: Dorchester, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-T

  98. Housecorp Inc

    EIN 237091484 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Housing Advisory Group Inc

    EIN 043408917 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Housing Seventy Corporation

    EIN 042719989 · Headquarters: NEW BEDFORD, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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