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. The Leland Home

    EIN 042104385 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  2. The Leo H Rudnick Family Trust Inc C/o Jewish Federation of Central Ma

    EIN 042775693 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. The Leona Karp Family Foundation

    EIN 046636905 · Headquarters: AUBURN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  4. The Levi Heywood Memorial Library Association

    EIN 046002850 · Headquarters: GARDNER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. The Lewis M & Esther Perlstein Family Foundation

    EIN 046351051 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  6. The Liann Bordeau-buck Memorial Foundation Inc

    EIN 861825241 · Headquarters: Pittsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. The Life Experience School Inc

    EIN 042509041 · Headquarters: Plymouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. The Lincoln-sudbury Scholarship Fund Dollars for Scholars Inc

    EIN 043022768 · Headquarters: SUDBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. The Lions Club of Huntington

    EIN 046137703 · Headquarters: Huntingto, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. The Literacy Project

    EIN 042907399 · Headquarters: GREENFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. The Loft School of Marion Inc

    EIN 042383191 · Headquarters: Marion, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. The Logos Encounter Inc

    EIN 133085892 · Headquarters: Berlin, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. The Lookout Fund Inc

    EIN 136213665 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  14. The Lorber Foundation

    EIN 237003984 · Headquarters: AMHERST, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  15. The Loring Wolcott & Coolidge Charitable Trust

    EIN 046108814 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. The Louis & Nettie Horch Foundation

    EIN 136051838 · Headquarters: SALEM, MA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  17. The Louis Jacobs Charitable Trust Co Morgan Memorial Goodwill Industries Inc

    EIN 046886743 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  18. The Louisa May Alcott Society

    EIN 760811567 · Headquarters: Vineyard Haven, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. The Lowell Institute

    EIN 042105771 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  20. The Lpm Charitable Foundation

    EIN 043316344 · Headquarters: BOLTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  21. The Ludcke Foundation

    EIN 046663582 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  22. The Lynn M Mccormack Memorial Foundation

    EIN 422498814 · Headquarters: Hanover, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. The Lynnfield Educational Trust Inc

    EIN 223062644 · Headquarters: Lynnfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. The Mack Collective Inc C/o Daniel Dennis & Company Llp

    EIN 933867185 · Headquarters: DEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. The Maker Generation Inc

    EIN 852476718 · Headquarters: Pittsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. The Manchester Club Inc

    EIN 222579494 · Headquarters: MANCHESTER BY THE SEA, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. The Manhattan Foundation Corp

    EIN 834377749 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  28. The Mansfield Historical Society

    EIN 046056548 · Headquarters: MANSFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  29. The Margaret Fitzgerald Grogan Petersmeyer Foundation Inc

    EIN 042931104 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. The Margaret Gifford School Inc

    EIN 042381515 · Headquarters: WESTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. The Margery E Feldberg Foundation

    EIN 042944103 · Headquarters: FRAMINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  32. The Mark Eric Jepson Foundation Inc C/o Mahoney Fiorentino & Co

    EIN 873778812 · Headquarters: WAKEFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. The Marlborough Foundation Inc

    EIN 223006211 · Headquarters: MARLBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. The Marneegil Charitable Fdn

    EIN 046737675 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  35. The Marshall Fund 7522-Xxxxxx00227

    EIN 020467589 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  36. The Martha's Vineyard Striped Bass Bluefish Derby Inc

    EIN 042952525 · Headquarters: EDGARTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  37. The Martin & Deborah Hale Foundation

    EIN 043294711 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  38. The Martin Luther King Jr Business Empowerment Center Inc

    EIN 043221277 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  39. The Mary P Wakeman Conservation Center Trust

    EIN 222567254 · Headquarters: VINEYARD HAVEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. The Mashnee Association Inc

    EIN 042617435 · Headquarters: Monument Beach, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. The Massachusetts Delta Chapter of Sigma Alpha Eps

    EIN 911959110 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  42. The Massachusetts Human Resource Fund Inc

    EIN 042940626 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. The Massachusetts Laborers Building Unified Trust

    EIN 043408566 · Headquarters: Hopkinton, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. The Massachusetts Laborers Highway Unified Trust

    EIN 043408561 · Headquarters: Hopkinton, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. The Massachusetts Lgbtq Bar Association Inc

    EIN 043014093 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. The Massachusetts Lodge Af & Am

    EIN 046017720 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. The Massachusetts Society for Respiratory Therapy Inc

    EIN 042648882 · Headquarters: CANTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. The May-west Roxbury Residences Inc

    EIN 043331170 · Headquarters: RANDOLPH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. The Mcclosky Institute of Voice Inc

    EIN 222514487 · Headquarters: Maynard, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. The Mclean Hospital Corporation Employee & Retiree Medical Trust

    EIN 043362620 · Headquarters: SOMERVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  51. The Meadows Lodge Af & Am

    EIN 237578790 · Headquarters: EAST LONGMEADOW, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. The Mediation Group Inc

    EIN 042910698 · Headquarters: BROOKLINE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. The Mellen Foundation Inc C/o Paul Mccoy Family Office Services

    EIN 222778847 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  54. The Memorial Society Inc

    EIN 046086159 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  55. The Mezitt Horticultural Foundation C/o Beth Mezitt

    EIN 043161096 · Headquarters: HOPKINTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  56. The Millicent Library

    EIN 042121363 · Headquarters: FAIRHAVEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. The Ministry-at-large in Lowell

    EIN 046064127 · Headquarters: CHELMSFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. The Mirza Mehdi Charitable Trust

    EIN 043071833 · Headquarters: PLYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  59. The Monsour H Laham Foundation Inc

    EIN 046111555 · Headquarters: Chestnut Hill, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  60. The Monterey Historical Society Inc

    EIN 043050885 · Headquarters: Monterey, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. The Morby Family Charitable Foundation

    EIN 042943793 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  62. The Morningstar Family Foundation C/o Deborah Anderson Nixon Peabody

    EIN 043236053 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  63. The Mother Connection Inc

    EIN 042759640 · Headquarters: ANDOVER, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  64. The Mother Youngn Zayguah Gbor Midwifery Clinic

    EIN 842721435 · Headquarters: Lynn, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  65. The Mothers Club of Hadley Inc

    EIN 043132804 · Headquarters: HADLEY, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. The Mr & Mrs P Leo Corcoran Foundation C/o John M Corcoran & Company

    EIN 046767204 · Headquarters: BRAINTREE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  67. The Murray and Grace Nissman Foundation

    EIN 366073776 · Headquarters: BROOKLINE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  68. The Myrin Institute Inc

    EIN 111857581 · Headquarters: Great Barrington, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. The Mystic Valley Gun Club Inc

    EIN 237357310 · Headquarters: Malden, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. The Nancy Lurie Marks Family Foundation

    EIN 042607232 · Headquarters: WELLESLEY, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  71. The Nantucket Education Trust Inc

    EIN 043165556 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. The Nashawtuc Country Club Inc

    EIN 042270653 · Headquarters: CONCORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. The National Adrenal Diseases Foundation

    EIN 112777036 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. The Nature Connection Inc

    EIN 042652021 · Headquarters: Concord, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. The Needham Education Foundation Inc

    EIN 043088148 · Headquarters: NEEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. The New Dance Complex Inc

    EIN 043131964 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. The New England Affordable Housing Management Association Inc

    EIN 043055194 · Headquarters: BRAINTREE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. The New England Automated Clearing House Association

    EIN 042514013 · Headquarters: BURLINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. The New England Canada Business Council Inc

    EIN 042767551 · Headquarters: WESTFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. The New England Center for Children Inc

    EIN 042708762 · Headquarters: SOUTHBOROUGH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. The New England College of Optometry

    EIN 041591060 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. The New England Council Inc

    EIN 041661090 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. The New England Foundation

    EIN 222757391 · Headquarters: CHESTNUT HILL, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  84. The New England Miniature Horse Society

    EIN 020391736 · Headquarters: Lakeville, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. The New England Quarterly C/o Loring Wolcott & Coolidge

    EIN 042707673 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. The New England Region of Gold Star Wives of America Inc

    EIN 237057035 · Headquarters: HANSON MA, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. The New Era Foundation

    EIN 226330739 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  88. The New York Central System Historical Society

    EIN 237084709 · Headquarters: Hudson, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. The Newburyport Pioneer League

    EIN 222494469 · Headquarters: NEWBURYPORT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. The Norman H Walker Trust 21015000168

    EIN 046705934 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  91. The Notre Dame Education Center-Lawrence Inc

    EIN 043392507 · Headquarters: Lawrence, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. The Nucleus

    EIN 046208570 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. The Nypro Foundation Inc Co Nypro Inc

    EIN 043211993 · Headquarters: Clinton, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  94. The O'shaughnessy Family Foundation

    EIN 431669212 · Headquarters: UXBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  95. The Oak Foundation for Child Health and Education Inc C/o Sullivan & Worcester

    EIN 043104788 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  96. The Oakley Country Club

    EIN 041683805 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. The Occupational Rehabilitation Gro

    EIN 042622021 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. The Ohrn Family Charitable Foundation

    EIN 223064094 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. The Old Colony Yacht Club

    EIN 042137056 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. The Omni Institute for Optimal Health

    EIN 042783294 · Headquarters: Hingham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

First page and all pages