Unknown & Unclassified nonprofits in Maine

Unknown & Unclassified nonprofits in Maine. Browse 4,077 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. Independent Order of Odd Fellows

    EIN 237610566 · Headquarters: Auburn, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. Independent Order of Odd Fellows

    EIN 237610728 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Independent Order of Odd Fellows

    EIN 237610738 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  4. Independent Order of Odd Fellows

    EIN 237610739 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. Independent Order of Odd Fellows

    EIN 237610740 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Independent Order of Odd Fellows

    EIN 237612027 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Independent Order of Odd Fellows

    EIN 581784328 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Independent Order of Odd Fellows

    EIN 581784340 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Independent Order of Odd Fellows

    EIN 581784363 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Independent Order of Odd Fellows

    EIN 581784377 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. Independent Order of Odd Fellows

    EIN 812366739 · Headquarters: AUBURN, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Independent Order of Odd Fellows

    EIN 911824229 · Headquarters: Auburn, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Independent Order of Odd Fellows 5 Ivy Rebekah Lodge

    EIN 237610478 · Headquarters: SOUTH PORTLAND, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Independent Order of Odd Fellows Co Frederick Stuart

    EIN 016012710 · Headquarters: South Portland, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Independent Order of Odd Fellows Grand Lodge of Maine

    EIN 010095414 · Headquarters: Auburn, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Industrial Energy Consumer Group

    EIN 010408591 · Headquarters: AUGUSTA, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Institute of Internal Auditors

    EIN 010360050 · Headquarters: AUGUSTA, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Institute of Management Accountants Inc

    EIN 237353292 · Headquarters: PITTSFIELD, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Int Assoc of Round Dance Teachers Roundlab

    EIN 581356360 · Headquarters: AUBURN, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. International Alliance Theatrical Stage Employees & Moving Picture

    EIN 911837062 · Headquarters: Westbrook, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. International Associaiton of Insurance Professionals

    EIN 010418972 · Headquarters: Portland, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. International Association of Assessing Officers

    EIN 465484241 · Headquarters: Cumberland, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. International Association of Electrical Inspectors

    EIN 016023912 · Headquarters: Lewiston, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. International Association of Fire Fighters

    EIN 016014991 · Headquarters: LEWISTON, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. International Association of Fire Fighters

    EIN 016022340 · Headquarters: Rockland, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. International Association of Fire Fighters

    EIN 020777843 · Headquarters: Brunswick, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. International Association of Fire Fighters

    EIN 262361884 · Headquarters: Wells, ME, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  28. International Association of Fire Fighters

    EIN 471334174 · Headquarters: Gray, ME, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  29. International Association of Fire Fighters

    EIN 814740054 · Headquarters: Hampden, ME, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  30. International Association of Fire Fighters

    EIN 833497949 · Headquarters: CARIBOU, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. International Association of Fire Fighters

    EIN 854001027 · Headquarters: Falmouth, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. International Association of Fire Fighters

    EIN 871172921 · Headquarters: Bath, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. International Association of Fire Fighters

    EIN 873352453 · Headquarters: East Machias, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. International Association of Fire Fighters

    EIN 883237285 · Headquarters: Casco, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. International Association of Fire Fighters

    EIN 932782430 · Headquarters: Raymond, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. International Association of Fire Fighters L-1476 So Portland

    EIN 016019019 · Headquarters: SOUTH PORTLAND, ME, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  37. International Association of Firefighters

    EIN 010528877 · Headquarters: Scarborough, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. International Association of Heat Frost Insulators Allied Workers

    EIN 237034308 · Headquarters: Sanford, ME, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. International Association of Lions 13635

    EIN 016021790 · Headquarters: Yarmouth, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. International Association of Lions Clubs

    EIN 010063783 · Headquarters: Trenton, ME, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  41. International Association of Lions Clubs

    EIN 010346962 · Headquarters: BOOTHBAY HBR, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. International Association of Lions Clubs

    EIN 010379851 · Headquarters: Lubec, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. International Association of Lions Clubs

    EIN 010384271 · Headquarters: Monroe, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. International Association of Lions Clubs

    EIN 010412232 · Headquarters: Albion, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. International Association of Lions Clubs

    EIN 010500745 · Headquarters: RAYMOND, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. International Association of Lions Clubs

    EIN 010502398 · Headquarters: Harrison, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. International Association of Lions Clubs

    EIN 016011786 · Headquarters: South Portland, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. International Association of Lions Clubs

    EIN 016018632 · Headquarters: ELIOT, ME, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  49. International Association of Lions Clubs

    EIN 016018767 · Headquarters: Rockport, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. International Association of Lions Clubs

    EIN 016018773 · Headquarters: Portland, ME, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  51. International Association of Lions Clubs

    EIN 016018779 · Headquarters: Wilton, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. International Association of Lions Clubs

    EIN 016018780 · Headquarters: SANFORD, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. International Association of Lions Clubs

    EIN 016018781 · Headquarters: Stratton, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. International Association of Lions Clubs

    EIN 016018782 · Headquarters: Oakland, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. International Association of Lions Clubs

    EIN 016019085 · Headquarters: Damariscotta, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. International Association of Lions Clubs

    EIN 016019088 · Headquarters: Gardiner, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. International Association of Lions Clubs

    EIN 016019089 · Headquarters: Gorham, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. International Association of Lions Clubs

    EIN 016019439 · Headquarters: CUMBERLAND, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. International Association of Lions Clubs

    EIN 016021750 · Headquarters: Bangor, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. International Association of Lions Clubs

    EIN 016021753 · Headquarters: belfast, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. International Association of Lions Clubs

    EIN 016021760 · Headquarters: CAPE ELIZABETH, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. International Association of Lions Clubs

    EIN 016021765 · Headquarters: Fort Fairfield, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. International Association of Lions Clubs

    EIN 016021767 · Headquarters: St Albans, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. International Association of Lions Clubs

    EIN 016021774 · Headquarters: Monmourh, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. International Association of Lions Clubs

    EIN 016021782 · Headquarters: Scarborough, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. International Association of Lions Clubs

    EIN 016021783 · Headquarters: SOUTH THOMASTON, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. International Association of Lions Clubs

    EIN 016021785 · Headquarters: Vinalhaven, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. International Association of Lions Clubs

    EIN 016021788 · Headquarters: Windham, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. International Association of Lions Clubs

    EIN 222576592 · Headquarters: fryeburg, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. International Association of Lions Clubs

    EIN 222932429 · Headquarters: Sebago, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. International Association of Lions Clubs

    EIN 223134336 · Headquarters: Kittery, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. International Association of Lions Clubs

    EIN 223200580 · Headquarters: South Portland, ME, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  73. International Association of Lions Clubs

    EIN 272875608 · Headquarters: Wilton, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. International Association of Lions Clubs

    EIN 371882648 · Headquarters: Watervivlle, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. International Association of Lions Clubs

    EIN 392057022 · Headquarters: Naples, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. International Association of Lions Clubs

    EIN 421766213 · Headquarters: FREEPORT, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. International Association of Lions Clubs

    EIN 510170651 · Headquarters: Searsport, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. International Association of Lions Clubs

    EIN 800279085 · Headquarters: Westbrook, ME, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  79. International Association of Lions Clubs

    EIN 842629470 · Headquarters: Farmington, ME, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. International Association of Lions Clubs - 13610 Falmouth

    EIN 016021739 · Headquarters: Falmouth, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. International Association of Lions Clubs 13680 Fort Kent

    EIN 016019149 · Headquarters: FORT KENT, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. International Association of Lions Clubs Bridgton Lions Club

    EIN 016021757 · Headquarters: BRIDGTON, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. International Association of Machinist & Aerospace Workers

    EIN 222568406 · Headquarters: WATERVILLE, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. International Association of Machinists & Aerospace Workers

    EIN 016001262 · Headquarters: BELGRADE, ME, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  85. International Association of Machinists & Aerospace Workers

    EIN 016019101 · Headquarters: Baileyville, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. International Association of Machinists & Aerospace Workers

    EIN 016028911 · Headquarters: Clinton, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. International Association of Machinists & Aerospace Workers

    EIN 016029476 · Headquarters: Westbrook, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. International Association of Machinists & Aerospace Workers

    EIN 222966151 · Headquarters: Bath, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. International Association of Machinists & Aerospace Workers

    EIN 521597968 · Headquarters: Lisbon Falls, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. International Association of Machinists and Aerospace Workers

    EIN 010442578 · Headquarters: BATH, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. International Association of Machinists and Aerospace Workers

    EIN 851522160 · Headquarters: Trenton, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. International Association of Machinsts & Aerospace Workers

    EIN 462458251 · Headquarters: BATH, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. International Brotherhood of Electrical Workers

    EIN 010446296 · Headquarters: HINKLEY, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  94. International Brotherhood of Electrical Workers

    EIN 016018934 · Headquarters: Rumford, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. International Brotherhood of Electrical Workers

    EIN 016029475 · Headquarters: Poland, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. International Brotherhood of Electrical Workers

    EIN 020274959 · Headquarters: Scarborough, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. International Brotherhood of Electrical Workers 1253 Local

    EIN 010226195 · Headquarters: NEWPORT, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. International Brotherhood of Electrical Workers Local #2327

    EIN 010288542 · Headquarters: AUGUSTA, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. International Brotherhood of Electrical Workers Local 1057

    EIN 016015030 · Headquarters: Baileyville, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. International Brotherhood of Electrical Workers Local 567

    EIN 010095705 · Headquarters: LEWISTON, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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