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. American Institute of Aeronautics and Astronautics

    EIN 832122853 · Headquarters: Cocoa Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Institute of Aeronautics and Astronautics

    EIN 846048995 · Headquarters: Highlands Ranch, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Institute of Aeronautics and Astronautics

    EIN 850388154 · Headquarters: Las Cruces, NM, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. American Institute of Aeronautics and Astronautics

    EIN 850394813 · Headquarters: Albuquerque, NM, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. American Institute of Aeronautics and Astronautics

    EIN 860698159 · Headquarters: Gilbert, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. American Institute of Aeronautics and Astronautics

    EIN 860743674 · Headquarters: ORO VALLEY, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. American Institute of Aeronautics and Astronautics

    EIN 860754695 · Headquarters: Prescott, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. American Institute of Aeronautics and Astronautics

    EIN 866057540 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. American Institute of Aeronautics and Astronautics

    EIN 870484171 · Headquarters: Millcreek, UT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. American Institute of Aeronautics and Astronautics

    EIN 874567302 · Headquarters: El Segundo, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. American Institute of Aeronautics and Astronautics

    EIN 876128351 · Headquarters: Salt Lake City, UT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. American Institute of Aeronautics and Astronautics

    EIN 881129110 · Headquarters: Minneapolis, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Institute of Aeronautics and Astronautics

    EIN 911608960 · Headquarters: Lake Stevens, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. American Institute of Aeronautics and Astronautics

    EIN 946127057 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. American Institute of Aeronautics and Astronautics

    EIN 954211263 · Headquarters: Hermosa Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. American Institute of Aeronautics and Astronautics

    EIN 954323649 · Headquarters: Thousand Oaks, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. American Institute of Aeronautics and Astronautics

    EIN 956156008 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. American Institute of Aeronautics and Astronautics

    EIN 956156407 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. American Institute of Aeronautics and Astronautics Inc

    EIN 846048994 · Headquarters: Boulder, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. American Institute of Aeronautics and Astronautics Osu Student Branch

    EIN 814348738 · Headquarters: CORVALLIS, OR, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  21. American Institute of Architect Mobile Chapter

    EIN 630739429 · Headquarters: Mobile, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. American Institute of Architects

    EIN 232331830 · Headquarters: ALLENTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  23. American Institute of Architects

    EIN 341351848 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. American Institute of Architects

    EIN 596151172 · Headquarters: CORAL GABLES, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. American Institute of Architects

    EIN 751722607 · Headquarters: Midland, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. American Institute of Architects

    EIN 956099009 · Headquarters: SANTA BARBARA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. American Institute of Architects - Dallas Chapter

    EIN 750877700 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. American Institute of Architects AIA Central PA Chapter

    EIN 251791463 · Headquarters: Harrisburg, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. American Institute of Architects AIA Dba AIA Phoenix Metro (Central AZ Chap

    EIN 860213837 · Headquarters: Phoenix, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. American Institute of Architects Akron Chapter

    EIN 346611636 · Headquarters: AKRON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. American Institute of Architects Austin Chapter

    EIN 742213783 · Headquarters: Austin, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. American Institute of Architects Baton Rouge Chapter

    EIN 581599162 · Headquarters: Baton Rouge, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. American Institute of Architects Birmingham Chapter

    EIN 636055331 · Headquarters: BIRMINGHAM, AL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. American Institute of Architects Ca Central Coast

    EIN 770323982 · Headquarters: SanLuis Obispo, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. American Institute of Architects Dayton Chapter

    EIN 316055759 · Headquarters: West Milton, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. American Institute of Architects Detroit Chapter

    EIN 386083853 · Headquarters: DETROIT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. American Institute of Architects Grand Rapids

    EIN 382864587 · Headquarters: GRAND RAPIDS, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. American Institute of Architects Inc

    EIN 237017050 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. American Institute of Architects Inc North Carolina Chapter

    EIN 560732091 · Headquarters: RALEIGH, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. American Institute of Architects Inland California Chapter

    EIN 952482217 · Headquarters: Riverside, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. American Institute of Architects Iowa Chapter

    EIN 420920934 · Headquarters: DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. American Institute of Architects Kansas City Chapter

    EIN 436039478 · Headquarters: Kansas City, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. American Institute of Architects Los Angeles Chapter

    EIN 950491170 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. American Institute of Architects Maine Chapter

    EIN 010418932 · Headquarters: NORWAY, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. American Institute of Architects Memphis Chapter

    EIN 626047769 · Headquarters: MEMPHIS, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. American Institute of Architects Montana Chapter

    EIN 237049200 · Headquarters: Billings, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. American Institute of Architects Monterey Bay Chapter

    EIN 946126832 · Headquarters: Monterey, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. American Institute of Architects Mountain Section Idaho Chapter

    EIN 820477881 · Headquarters: Ketchum, ID, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  49. American Institute of Architects New Orleans Chapter

    EIN 726022772 · Headquarters: New Orleans, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. American Institute of Architects Northern Virginia

    EIN 541240030 · Headquarters: ALEXANDRIA, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. American Institute of Architects of Utah

    EIN 876123199 · Headquarters: SALT LAKE CITY, UT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. American Institute of Architects Oklahoma Chapter

    EIN 731338318 · Headquarters: OKLAHOMA CITY, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. American Institute of Architects Pasadena and Foothill Chapter

    EIN 951824223 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. American Institute of Architects Redwood Empire Chapter

    EIN 942778543 · Headquarters: Santa Rosa, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. American Institute of Architects San Diego Chapter

    EIN 952006006 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. American Institute of Architects Sc Chapter

    EIN 570515827 · Headquarters: COLUMBIA, SC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. American Institute of Architects Shreveport Chapter

    EIN 726027672 · Headquarters: Shreveport, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Institute of Architects St Louis Chapter

    EIN 430720335 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. American Institute of Architects Sw Wa Chapter

    EIN 916055705 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. American Institute of Architects Ventura County Chapter

    EIN 956135731 · Headquarters: Ventura, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Institute of Architects West Michigan Chapter Inc

    EIN 386092438 · Headquarters: OSHTEMO, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. American Institute of Architects/ri Inc

    EIN 050468361 · Headquarters: PROVIDENCE, RI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. American Institute of Architectural Students

    EIN 161400491 · Headquarters: Buffalo, NY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  64. American Institute of Architecture Students University of Nebraska Li

    EIN 263434113 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. American Institute of Biodevelopmental Technology Inc

    EIN 042959739 · Headquarters: North Chelmsford, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  66. American Institute of Buddhist Studies Inc

    EIN 237330983 · Headquarters: NEW YORK, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. American Institute of Building Design Inc

    EIN 952226842 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  68. American Institute of Building Design Iowa Society

    EIN 611711404 · Headquarters: Marion, IA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  69. American Institute of Building Design Pa Society

    EIN 800180302 · Headquarters: Lancaster, PA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  70. American Institute of Certified Public Accountants

    EIN 130432265 · Headquarters: DURHAM, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. American Institute of Chemical Engineers

    EIN 131623892 · Headquarters: New York, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. American Institute of Chemical Engineers

    EIN 132885920 · Headquarters: Avon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Institute of Chemical Engineers

    EIN 132931385 · Headquarters: PELHAM, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  74. American Institute of Chemical Engineers

    EIN 166092147 · Headquarters: Grand Island, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. American Institute of Chemical Engineers

    EIN 232054851 · Headquarters: Fogelsville, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. American Institute of Chemical Engineers

    EIN 232856761 · Headquarters: Corning, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. American Institute of Chemical Engineers

    EIN 237208907 · Headquarters: Odessa, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. American Institute of Chemical Engineers

    EIN 237265069 · Headquarters: Chesterfield, VA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  79. American Institute of Chemical Engineers

    EIN 237292002 · Headquarters: LAKELAND, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. American Institute of Chemical Engineers

    EIN 237347919 · Headquarters: Collierville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American Institute of Chemical Engineers

    EIN 237424898 · Headquarters: Kenner, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. American Institute of Chemical Engineers

    EIN 237424900 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. American Institute of Chemical Engineers

    EIN 237424901 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. American Institute of Chemical Engineers

    EIN 237424904 · Headquarters: West Jordan, UT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  85. American Institute of Chemical Engineers

    EIN 237424906 · Headquarters: Warren, NJ, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. American Institute of Chemical Engineers

    EIN 237424908 · Headquarters: Smithfield, RI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. American Institute of Chemical Engineers

    EIN 237424910 · Headquarters: Concord, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. American Institute of Chemical Engineers

    EIN 237424915 · Headquarters: Chattanooga, TN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. American Institute of Chemical Engineers

    EIN 237424917 · Headquarters: Graniteville, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. American Institute of Chemical Engineers

    EIN 237424920 · Headquarters: Kansas City, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Institute of Chemical Engineers

    EIN 237424921 · Headquarters: Beaver, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Institute of Chemical Engineers

    EIN 237424924 · Headquarters: South Charleston, WV, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  93. American Institute of Chemical Engineers

    EIN 237424926 · Headquarters: Corpus Christi, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. American Institute of Chemical Engineers

    EIN 237429665 · Headquarters: Maylene, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. American Institute of Chemical Engineers

    EIN 251706234 · Headquarters: LANDISVILLE, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. American Institute of Chemical Engineers

    EIN 311385760 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  97. American Institute of Chemical Engineers

    EIN 351362882 · Headquarters: Fishers, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Institute of Chemical Engineers

    EIN 365086557 · Headquarters: Morgantown, WV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. American Institute of Chemical Engineers

    EIN 366156889 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. American Institute of Chemical Engineers

    EIN 371359410 · Headquarters: Champaign, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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