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. Experimental Aircraft Association

    EIN 471606422 · Headquarters: zephyrhills, FL, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  2. Experimental Aircraft Association

    EIN 541263809 · Headquarters: Newport News, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Experimental Aircraft Association

    EIN 631078817 · Headquarters: Odenville, AL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  4. Experimental Aircraft Association

    EIN 731186341 · Headquarters: Owasso, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  5. Experimental Aircraft Association

    EIN 760040786 · Headquarters: El Lago, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Experimental Aircraft Association

    EIN 810553174 · Headquarters: MIDLAND, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. Experimental Aircraft Association

    EIN 841591517 · Headquarters: Grand Junction, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Experimental Aircraft Association

    EIN 850396022 · Headquarters: Los Lunas, NM, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  9. Experimental Aircraft Association

    EIN 860722730 · Headquarters: LK HAVASU CTY, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Experimental Aircraft Association

    EIN 953477380 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Experimental Aircraft Association - Chapter 734

    EIN 264657967 · Headquarters: McKenzie, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Experimental Aircraft Association - Greater Pittsburgh Chapter 45

    EIN 800326495 · Headquarters: Sutersville, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Experimental Aircraft Association 1112 Oroville Chapter

    EIN 680353440 · Headquarters: Oroville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Experimental Aircraft Association 83 John Blouch Chapter

    EIN 351846832 · Headquarters: Terre Haute, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Experimental Aircraft Association 919 Max Conrad

    EIN 010969583 · Headquarters: Winona, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Experimental Aircraft Association Anchorage Alaska Chapter 42 Inc

    EIN 920113045 · Headquarters: Eagle River, AK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Experimental Aircraft Association Ch 594 Bay Shore Ny Inc

    EIN 112431186 · Headquarters: Smithtown, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Experimental Aircraft Association Chapter 1079 Inc

    EIN 571008636 · Headquarters: AIKEN, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Experimental Aircraft Association Chapter 1087 Inc

    EIN 383271511 · Headquarters: Petoskey, MI, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  20. Experimental Aircraft Association Chapter 118

    EIN 800531970 · Headquarters: Shaker Heights, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Experimental Aircraft Association Chapter 122

    EIN 383698927 · Headquarters: Middletown, PA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  22. Experimental Aircraft Association Chapter 1221

    EIN 411995966 · Headquarters: Cloquet, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Experimental Aircraft Association Chapter 124 of Santa Rosa Ca

    EIN 237261383 · Headquarters: Santa Rosa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Experimental Aircraft Association Chapter 1246 Inc

    EIN 752794373 · Headquarters: ALLEN, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Experimental Aircraft Association Chapter 1272 Incorporated

    EIN 341915178 · Headquarters: Fremont, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Experimental Aircraft Association Chapter 130 Western Connecticut

    EIN 133717389 · Headquarters: CARMEL, NY, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  27. Experimental Aircraft Association Chapter 165 Eaa

    EIN 710684226 · Headquarters: North Little Rock, AR, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. Experimental Aircraft Association Chapter 26

    EIN 911018406 · Headquarters: Kent, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Experimental Aircraft Association Chapter 284 of Wilmington Oh

    EIN 311371433 · Headquarters: Waynesville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Experimental Aircraft Association Chapter 323 Inc

    EIN 722137537 · Headquarters: Sherman, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Experimental Aircraft Association Chapter 33 Inc

    EIN 421513202 · Headquarters: Hiawatha, IA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  32. Experimental Aircraft Association Chapter 411

    EIN 237359796 · Headquarters: Klamath Falls, OR, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Experimental Aircraft Association Chapter 455

    EIN 412160517 · Headquarters: Enid, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Experimental Aircraft Association Chapter 495

    EIN 930859992 · Headquarters: Roseburg, OR, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  35. Experimental Aircraft Association Chapter 578

    EIN 473379214 · Headquarters: Fremont, MI, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  36. Experimental Aircraft Association Chapter 610 Inc

    EIN 010671571 · Headquarters: Huber Heights, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Experimental Aircraft Association Chapter 644 Inc

    EIN 550742299 · Headquarters: Ona, WV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Experimental Aircraft Association Chapter 663

    EIN 134218632 · Headquarters: Discovery Bay, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Experimental Aircraft Association Chapter 701 Mansfield Ma Inc

    EIN 222812496 · Headquarters: Mansfield, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  40. Experimental Aircraft Association Chapter 747 Inc

    EIN 742212213 · Headquarters: Comfort, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  41. Experimental Aircraft Association Chapter 768 Apple Valley

    EIN 953749919 · Headquarters: Apple Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  42. Experimental Aircraft Association Chapter 78

    EIN 810629455 · Headquarters: Perkasie, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Experimental Aircraft Association Chapter 969 Inc

    EIN 800645288 · Headquarters: Clovis, NM, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  44. Experimental Aircraft Association Chapter 999

    EIN 800594018 · Headquarters: Lake Park, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Experimental Aircraft Association Chapter Ninety Nine Inc

    EIN 236502102 · Headquarters: Vero Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  46. Experimental Aircraft Association Csra Chapter 172 Inc

    EIN 582595879 · Headquarters: Blythe, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Experimental Aircraft Association Danville Chapter 769

    EIN 421758938 · Headquarters: riverside, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  48. Experimental Aircraft Association Dust Devils Chapter 883 Inc

    EIN 810668605 · Headquarters: Wickenburg, AZ, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  49. Experimental Aircraft Association Eaa Chapter 72

    EIN 841566892 · Headquarters: Peyton, CO, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  50. Experimental Aircraft Association Flint Area Chapter 77

    EIN 382602136 · Headquarters: Flushing, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Experimental Aircraft Association Greenville Chapter 249 Inc

    EIN 576034201 · Headquarters: Greer, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Experimental Aircraft Association Inc Chapter 147

    EIN 261496239 · Headquarters: COLUMBIANA, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  53. Experimental Aircraft Association Inc Chapter 700

    EIN 421184134 · Headquarters: BURLINGTON, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Experimental Aircraft Association Inc Chapter 74

    EIN 900637543 · Headquarters: Longwood, FL, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  55. Experimental Aircraft Association Inc Choctaw Chapter 108

    EIN 592001634 · Headquarters: NICEVILLE, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Experimental Aircraft Association Inc the Tennessee Valley Chapter 1

    EIN 636065824 · Headquarters: Huntsville, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Experimental Aircraft Association Incorporated

    EIN 421285083 · Headquarters: West Liberty, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Experimental Aircraft Association Incorporated

    EIN 451452078 · Headquarters: Muscatine, IA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  59. Experimental Aircraft Association Incorporated Chapter 977

    EIN 593141366 · Headquarters: Lake City, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Experimental Aircraft Association Mid-mo Chapter 1225 Inc

    EIN 431907958 · Headquarters: Centralia, MO, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  61. Experimental Aircraft Association Northern California Chapter 654

    EIN 942806473 · Headquarters: montague, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Experimental Aircraft Association of Brazoria County Chapter 347

    EIN 741672371 · Headquarters: Alvin, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Experimental Aircraft Association of Marshalltown 675 Inc

    EIN 421157412 · Headquarters: marshalltown, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Experimental Aircraft Association of Minot-chapter 265

    EIN 237031375 · Headquarters: Minot, ND, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Experimental Aircraft Association Ramble Aires Chapter 217 Inc

    EIN 237049233 · Headquarters: Kenosha, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Experimental Aircraft Association Sowela Barnstormers Chpt 541 of La

    EIN 943418680 · Headquarters: JENNINGS, LA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  67. Experimental Aircraft Association Tingoose Chapter 1247 Inc

    EIN 161710709 · Headquarters: Port Clinton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Experimental Aircraft Association Wisconsin Chapter 60 Inc

    EIN 930827821 · Headquarters: Beloit, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Experimental Aircrsft Association of Yuma Inc

    EIN 860643581 · Headquarters: Yuma, AZ, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. Experimental Cities Inc

    EIN 237803504 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  71. Experimental Schools Corporation of Arizona

    EIN 237073620 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Experimental Sound Studio

    EIN 363482714 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Experimental Television Center Ltd

    EIN 160993211 · Headquarters: Smyrna, GA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Experimental Theatre Project Inc

    EIN 510178992 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Expert Tree Academy

    EIN 331254274 · Headquarters: Bald Knob, AR, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. Expert-exchange

    EIN 472266962 · Headquarters: Vernon, VT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  77. Experts United for Homelessness and Housing Solutions

    EIN 934121026 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Exploneer Inc

    EIN 882472084 · Headquarters: TENAFLY, NJ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Explorastory

    EIN 472850361 · Headquarters: Goodlettsville, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  80. Exploration Learning Center

    EIN 413355798 · Headquarters: Stuart, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Exploration School Inc

    EIN 042601469 · Headquarters: NORWOOD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Explorations Homeschool Co-op

    EIN 813500781 · Headquarters: Grand Rapids, MN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Explore Bristol

    EIN 812164243 · Headquarters: Bristol, RI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  84. Explore Impact

    EIN 862207127 · Headquarters: miramar, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Explore Southern Indiana Inc

    EIN 237434888 · Headquarters: Bedford, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Explore Sumter County Inc

    EIN 592870873 · Headquarters: Bushnell, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Explore Twinsburg Inc

    EIN 812695892 · Headquarters: twinsburg, OH, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  88. Explore Two Rivers Inc

    EIN 921596455 · Headquarters: TWO RIVERS, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Explorer Post 279 Foundation

    EIN 472270718 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  90. Explorer Post 555

    EIN 800662546 · Headquarters: Concord, NH, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  91. Explorer Post 825

    EIN 993761916 · Headquarters: BISHOP, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Explorer Post 850

    EIN 334299019 · Headquarters: Victorvillee, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Explorers Camping Club

    EIN 943435202 · Headquarters: Lincol, NE, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  94. Explorers Club

    EIN 274358574 · Headquarters: Tampa, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Explorers Guild

    EIN 990420149 · Headquarters: Oakland, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Exploring Post 579

    EIN 471854504 · Headquarters: Maryville, TN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  97. Expoforspecialpersonsex

    EIN 351863111 · Headquarters: MONON, IN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  98. Expolratores Inc

    EIN 332566300 · Headquarters: Allen, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Exponent Foundation

    EIN 842474371 · Headquarters: MOUNTAIN HOUSE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  100. Export Business Group Llc

    EIN 872996582 · Headquarters: EXPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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