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. United Steelworkers

    EIN 237280352 · Headquarters: WARE, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. United Steelworkers

    EIN 251765271 · Headquarters: Chelsea, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. United Steelworkers International

    EIN 046116163 · Headquarters: Worcester, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. United Steelworkers International

    EIN 046119592 · Headquarters: Athol, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. United Steelworkers International Union Local 07912

    EIN 042710034 · Headquarters: Chicopee, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. United Steelworkers International Union Local 12003

    EIN 046138420 · Headquarters: Braintree, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. United Steelworkers Local 2936

    EIN 042043019 · Headquarters: Auburn, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. United Steelworkers Local Union 09360

    EIN 251765273 · Headquarters: Chelsea, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. United Steelworkers Local Union 09517

    EIN 812576305 · Headquarters: Foxboro, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. United Steelworkers Local Union 12004

    EIN 237315290 · Headquarters: Milford, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. United Steelworkers Local Union 12026

    EIN 042521450 · Headquarters: Springfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. United Steelworkers Local Union 12325

    EIN 046113319 · Headquarters: Pittsfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. United Steelworkers Local Union 13507

    EIN 237011306 · Headquarters: South Yarmouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. United Steelworkers Local Union 2285

    EIN 042467418 · Headquarters: Auburn, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. United Steelworkers Local Union 5696

    EIN 043468393 · Headquarters: Ashland, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. United Steelworkers Local Union 8751

    EIN 510231799 · Headquarters: Roslindale, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. United Transporation Union Local 1473

    EIN 901110228 · Headquarters: Whitinsville, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  18. United Union of Roofers 33 Rdwa

    EIN 041786120 · Headquarters: STOUGHTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. United Way of Central Massachusetts Inc

    EIN 042104017 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. United Way of Franklin County

    EIN 042212894 · Headquarters: GREENFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  21. United Way of Greater Fall River Inc

    EIN 042104026 · Headquarters: FALL RIVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. United Way of Greater New Bedford Inc

    EIN 042104264 · Headquarters: NEW BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. United Way of Greater Plymouth County In

    EIN 042103940 · Headquarters: BROCKTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. United Way of Webster & Dudley Inc

    EIN 042380352 · Headquarters: WEBSTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  25. United Ways of Massachusetts Inc

    EIN 043138780 · Headquarters: Pittsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Uniterra Foundation Inc

    EIN 042748995 · Headquarters: Colrain, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Universal Philosophy of Yaqarism Demifox Inc

    EIN 320417578 · Headquarters: glouster, MA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  28. University Enterprise Servicesinc

    EIN 812287799 · Headquarters: AMHERST, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. University of Massachusetts

    EIN 010760702 · Headquarters: Williamsburg, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. University of Massachusetts

    EIN 042255803 · Headquarters: Brimfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. University of Massachusetts

    EIN 043054406 · Headquarters: Sagamore Beach, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. University of Massachusetts

    EIN 043145945 · Headquarters: New Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. University of Massachusetts

    EIN 043147312 · Headquarters: Oxford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. University of Massachusetts

    EIN 043545413 · Headquarters: Barnstable, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. University of Massachusetts

    EIN 061712165 · Headquarters: Southwick, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. University of Massachusetts

    EIN 061831714 · Headquarters: Spencer, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. University of Massachusetts

    EIN 113670238 · Headquarters: Westford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. University of Massachusetts

    EIN 113833144 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. University of Massachusetts

    EIN 202922571 · Headquarters: Ipswich, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. University of Massachusetts

    EIN 237014584 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. University of Massachusetts

    EIN 260066916 · Headquarters: Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. University of Massachusetts

    EIN 260085188 · Headquarters: Waltham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. University of Massachusetts

    EIN 261172777 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. University of Massachusetts

    EIN 261450454 · Headquarters: Ashby, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. University of Massachusetts

    EIN 261511451 · Headquarters: Lancaster, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. University of Massachusetts

    EIN 264004229 · Headquarters: Belchertwon, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. University of Massachusetts

    EIN 264820707 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. University of Massachusetts

    EIN 273116460 · Headquarters: Southwick, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. University of Massachusetts

    EIN 300788396 · Headquarters: Lancaster, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. University of Massachusetts

    EIN 301005418 · Headquarters: Newton, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  51. University of Massachusetts

    EIN 320297289 · Headquarters: Sutton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. University of Massachusetts

    EIN 331067159 · Headquarters: Townsend, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. University of Massachusetts

    EIN 352195797 · Headquarters: Greenfield, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. University of Massachusetts

    EIN 352202008 · Headquarters: Kingston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. University of Massachusetts

    EIN 352317545 · Headquarters: Millbury, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. University of Massachusetts

    EIN 364622540 · Headquarters: Topsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. University of Massachusetts

    EIN 371459003 · Headquarters: Salem, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. University of Massachusetts

    EIN 371692572 · Headquarters: Upton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. University of Massachusetts

    EIN 383796682 · Headquarters: Shelburne, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. University of Massachusetts

    EIN 383810674 · Headquarters: Florence, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  61. University of Massachusetts

    EIN 421685033 · Headquarters: Southwick, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. University of Massachusetts

    EIN 455158665 · Headquarters: Sharon, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. University of Massachusetts

    EIN 455209793 · Headquarters: Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. University of Massachusetts

    EIN 455213235 · Headquarters: Medfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. University of Massachusetts

    EIN 455269709 · Headquarters: Wilmington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. University of Massachusetts

    EIN 455271529 · Headquarters: Westwood, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. University of Massachusetts

    EIN 455288509 · Headquarters: West Boxford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. University of Massachusetts

    EIN 455299135 · Headquarters: Pepperell, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. University of Massachusetts

    EIN 455300810 · Headquarters: Salem, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. University of Massachusetts

    EIN 455302599 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. University of Massachusetts

    EIN 455303608 · Headquarters: Belchertown, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. University of Massachusetts

    EIN 455308124 · Headquarters: Scituate, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  73. University of Massachusetts

    EIN 455325875 · Headquarters: Upton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. University of Massachusetts

    EIN 455353999 · Headquarters: Townsend, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. University of Massachusetts

    EIN 455390308 · Headquarters: Belchertown, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  76. University of Massachusetts

    EIN 455395688 · Headquarters: Topsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. University of Massachusetts

    EIN 455400199 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. University of Massachusetts

    EIN 455403223 · Headquarters: Duxbury, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  79. University of Massachusetts

    EIN 461199661 · Headquarters: Medway, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. University of Massachusetts

    EIN 461480806 · Headquarters: Westford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. University of Massachusetts

    EIN 462368361 · Headquarters: Sturbridge, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  82. University of Massachusetts

    EIN 462863335 · Headquarters: Billerica, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  83. University of Massachusetts

    EIN 462965058 · Headquarters: Sutton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. University of Massachusetts

    EIN 464084046 · Headquarters: Kingston, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  85. University of Massachusetts

    EIN 464692066 · Headquarters: Hanson, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  86. University of Massachusetts

    EIN 470951300 · Headquarters: Barnstable, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. University of Massachusetts

    EIN 472308556 · Headquarters: North Attleboro, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  88. University of Massachusetts

    EIN 475201732 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. University of Massachusetts

    EIN 510495729 · Headquarters: Huntington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. University of Massachusetts

    EIN 510541262 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. University of Massachusetts

    EIN 510584618 · Headquarters: Westford, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. University of Massachusetts

    EIN 510671857 · Headquarters: Belchertown, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  93. University of Massachusetts

    EIN 542117580 · Headquarters: Leyden, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. University of Massachusetts

    EIN 542127075 · Headquarters: Wilmington, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. University of Massachusetts

    EIN 542172141 · Headquarters: Plymouth, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. University of Massachusetts

    EIN 542188758 · Headquarters: Quincy, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  97. University of Massachusetts

    EIN 550850556 · Headquarters: Belchertown, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. University of Massachusetts

    EIN 562473910 · Headquarters: Cummington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. University of Massachusetts

    EIN 571160922 · Headquarters: Belchertown, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  100. University of Massachusetts

    EIN 611547682 · Headquarters: Acton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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