Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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. Master Hormones Management Institute

    EIN 262892458 · Headquarters: Manassas, VA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  2. Master Initiative Corporation

    EIN 934670536 · Headquarters: Homeland, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Master Inspector Certifiecation Board

    EIN 204344263 · Headquarters: Boulder, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Master Insulators Association

    EIN 383026386 · Headquarters: Midland, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Master Insulators Association of Toledo Ohio

    EIN 341016051 · Headquarters: Northwood, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Master Insulators Association Trust Fund

    EIN 352001888 · Headquarters: EVANSVILLE, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Master Key Foundation Inc

    EIN 460571856 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  8. Master Lock Retirees

    EIN 472251725 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  9. Master Mariners Benevolent Associat

    EIN 942577897 · Headquarters: Richmond, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Master Mariners Benevolent Foundation

    EIN 943079816 · Headquarters: Tiburon, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Master Masons of Sno and Island Cou

    EIN 916063757 · Headquarters: Granite Falls, WA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  12. Master Ministries Inc

    EIN 341640418 · Headquarters: Milford, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Master Ministries International Inc

    EIN 382800692 · Headquarters: Grand Rapids, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Master National Retriever Club Inc

    EIN 541634926 · Headquarters: COLUMBIA, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Master of Business Administration Student Association

    EIN 832070819 · Headquarters: Raleigh, NC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  16. Master Peace Inc

    EIN 232345240 · Headquarters: WEST CHESTER, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  17. Master Plan Ministries

    EIN 742408656 · Headquarters: Durango, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Master Provisions Inc

    EIN 611262540 · Headquarters: FLORENCE, KY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Master Roofing and Sheet Metal Contractors Association Of

    EIN 580046566 · Headquarters: McDonough, GA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  20. Master Roofing Contractors Guarantee Program Inc

    EIN 581570864 · Headquarters: Stockbridge, GA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  21. Master Singers Inc

    EIN 042645984 · Headquarters: LEXINGTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. Master Singers of Milwaukee Inc

    EIN 391595091 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Master Singers of Worcester Inc

    EIN 510195563 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Master Sports Association

    EIN 237262687 · Headquarters: EAST HAMPTON, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Master Teacher Institute for the Arts Inc

    EIN 480870190 · Headquarters: MANHATTAN, KS, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Master Wardens & Members at the Grand Lodge at Masons in Mass

    EIN 237170788 · Headquarters: Newtonville, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. Master Wardens & Members Joseph Warren-soley Lodge Af & Am

    EIN 237165996 · Headquarters: LINCOLN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Master Wardens & Members of Grand Lodge of Masons in Ma Frank W Thompson Lodge

    EIN 237167775 · Headquarters: BEDFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Master Wardens & Members of Masons

    EIN 041032765 · Headquarters: LUDLOW, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Master Wardens & Members of Masons Abraham H Howland Jr Lodge

    EIN 237215965 · Headquarters: FAIRHAVEN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Master Wardens & Members of Masons Celestial Lodge

    EIN 041466033 · Headquarters: Westwood, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Master Wardens & Members of Masons Dba Prospect Lodge Af & Am

    EIN 041032813 · Headquarters: ROSLINDALE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Master Wardens & Members of Masons in Ma

    EIN 041032717 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Master Wardens & Members of Masons in MA

    EIN 046043445 · Headquarters: Millis, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Master Wardens & Members of Masons in Mass

    EIN 041032721 · Headquarters: Haverhill, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  36. Master Wardens & Members of Masons in Mass

    EIN 041032862 · Headquarters: Winchester, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Master Wardens & Members of Masons in Mass

    EIN 041032878 · Headquarters: PLYMOUTH, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Master Wardens & Members of Masons in Mass

    EIN 237170794 · Headquarters: Brockton, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Master Wardens & Members of Masons in Mass Golden Rule Lodge

    EIN 046057347 · Headquarters: WAKEFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Master Wardens & Members of the Charles River Lodge

    EIN 237170826 · Headquarters: Medway, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Master Wardens & Members of the Gardner Masonic Char & Educ Trust

    EIN 042590813 · Headquarters: GARDNER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Master Wardens & Members of the Grand Lodge of Mason in Mass the Harvard Lodge Af and Am

    EIN 237146926 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032726 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032743 · Headquarters: Berkley, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032755 · Headquarters: Natick, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032756 · Headquarters: Framingham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032764 · Headquarters: Woburn, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032767 · Headquarters: Medford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032775 · Headquarters: AMHERST, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032798 · Headquarters: ADAMS, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032823 · Headquarters: Methuen, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032833 · Headquarters: GEORGETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032854 · Headquarters: Cambridge, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032895 · Headquarters: west springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032922 · Headquarters: Stoughton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032935 · Headquarters: Wrest Boylston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032941 · Headquarters: Hingham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032973 · Headquarters: Gardner, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041032989 · Headquarters: Leominster, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041067805 · Headquarters: Attleboro, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041200778 · Headquarters: CONCORD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041362395 · Headquarters: Fairhaven, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041400525 · Headquarters: Greenfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041448820 · Headquarters: Holyoke, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041528535 · Headquarters: Lawrence, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  66. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041589560 · Headquarters: NEWBURYPORT, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041655695 · Headquarters: Needham, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 041913316 · Headquarters: Clinton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042001146 · Headquarters: Fall River, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042008684 · Headquarters: North Attleboro, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042020479 · Headquarters: Scituate, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042023180 · Headquarters: Lowell, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042147966 · Headquarters: WEYMOUTH, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  74. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042191546 · Headquarters: Fitchburg, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042195516 · Headquarters: Andover, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042267626 · Headquarters: Gloucester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042280063 · Headquarters: North Reading, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042301056 · Headquarters: Marblehead, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042375454 · Headquarters: Braintree, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042509924 · Headquarters: Hatfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042514998 · Headquarters: Leominster, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042522111 · Headquarters: West Brookfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042540493 · Headquarters: Turners Falls, MA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042550372 · Headquarters: Littleton, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042590167 · Headquarters: monson, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042593328 · Headquarters: Hopkinton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042600445 · Headquarters: Douglas, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042653933 · Headquarters: Westborough, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042664676 · Headquarters: Marshfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042690223 · Headquarters: NORTH ANDOVER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042705639 · Headquarters: Winchendon, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042725086 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042752496 · Headquarters: east bridgewater, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 042776139 · Headquarters: Fitchburg, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 043079194 · Headquarters: Marion, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 043104672 · Headquarters: SALEM, NH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 043159715 · Headquarters: Bourne, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 043164522 · Headquarters: Harwich, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 043186161 · Headquarters: Charlton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Master Wardens & Members of the Grand Lodge of Masons in Mass

    EIN 043237971 · Headquarters: Centerville, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

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