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 Chemical Engineers

    EIN 382895289 · Headquarters: Midland, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Institute of Chemical Engineers

    EIN 510207150 · Headquarters: KINGSPORT, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Institute of Chemical Engineers

    EIN 510207152 · Headquarters: Cedar Rapids, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. American Institute of Chemical Engineers

    EIN 510221220 · Headquarters: Woodbury, MN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. American Institute of Chemical Engineers

    EIN 510235977 · Headquarters: Clifton Park, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. American Institute of Chemical Engineers

    EIN 510235982 · Headquarters: AKRON, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  7. American Institute of Chemical Engineers

    EIN 510235996 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. American Institute of Chemical Engineers

    EIN 510247198 · Headquarters: Loveland, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Institute of Chemical Engineers

    EIN 510249175 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. American Institute of Chemical Engineers

    EIN 521205179 · Headquarters: Verona, NJ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Institute of Chemical Engineers

    EIN 521205183 · Headquarters: Chandler, AZ, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. American Institute of Chemical Engineers

    EIN 521205206 · Headquarters: RICHLAND, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. American Institute of Chemical Engineers

    EIN 521205210 · Headquarters: Beaverton, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Institute of Chemical Engineers

    EIN 521205215 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. American Institute of Chemical Engineers

    EIN 521205216 · Headquarters: ALEXANDRIA, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Institute of Chemical Engineers

    EIN 526050841 · Headquarters: ESSEX, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Institute of Chemical Engineers

    EIN 561181662 · Headquarters: HILLSBOROUGH, NC, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  18. American Institute of Chemical Engineers

    EIN 570629283 · Headquarters: NINETY SIX, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Institute of Chemical Engineers

    EIN 571086311 · Headquarters: Charleston, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Institute of Chemical Engineers

    EIN 593218650 · Headquarters: Melbourne, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. American Institute of Chemical Engineers

    EIN 731208328 · Headquarters: Bartesville, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. American Institute of Chemical Engineers

    EIN 731497755 · Headquarters: Sachse, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Institute of Chemical Engineers

    EIN 931227873 · Headquarters: Burlington, NC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  24. American Institute of Chemical Engineers - Monterrey Local Sectio

    EIN 465354426 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  25. American Institute of Chemical Engineers 21 Southern California L

    EIN 237309961 · Headquarters: CHINO HILLS, CA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  26. American Institute of Chemical Engineers Aiche - Boston

    EIN 043224464 · Headquarters: HARVARD, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Institute of Chemical Engineers Tulsa Section

    EIN 237424913 · Headquarters: Tulsa, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Institute of Chemical Engineers University of Nebraska L

    EIN 264038285 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. American Institute of Commemorative Art Inc

    EIN 131642302 · Headquarters: Santa Barbara, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  30. American Institute of Constructors

    EIN 730934883 · Headquarters: ARAPAHO, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. American Institute of Fine Arts

    EIN 956195833 · Headquarters: CORONA, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. American Institute of Floral Designers

    EIN 953371649 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. American Institute of Floral Designers Foundation Inc

    EIN 721047126 · Headquarters: PLANO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. American Institute of Graphic Artists

    EIN 411658036 · Headquarters: MINNEAPOLIS, MN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. American Institute of Graphic Arts

    EIN 134223625 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. American Institute of Graphic Arts

    EIN 141918417 · Headquarters: Hanahan, SC, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  37. American Institute of Graphic Arts

    EIN 208113029 · Headquarters: Reno, NV, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. American Institute of Graphic Arts

    EIN 251578172 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. American Institute of Graphic Arts

    EIN 260112077 · Headquarters: Chattanooga, TN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  40. American Institute of Graphic Arts

    EIN 261404421 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  41. American Institute of Graphic Arts

    EIN 300566651 · Headquarters: HOLLAND, MI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  42. American Institute of Graphic Arts

    EIN 341468313 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. American Institute of Graphic Arts

    EIN 351825567 · Headquarters: INDIANAPOLIS, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. American Institute of Graphic Arts

    EIN 382962130 · Headquarters: Detroit, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Institute of Graphic Arts

    EIN 391880013 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  46. American Institute of Graphic Arts

    EIN 421733896 · Headquarters: Oakland, TN, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  47. American Institute of Graphic Arts

    EIN 431516500 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. American Institute of Graphic Arts

    EIN 431574817 · Headquarters: Overland Park, KS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. American Institute of Graphic Arts

    EIN 450468047 · Headquarters: NASHVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  50. American Institute of Graphic Arts

    EIN 470750413 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. American Institute of Graphic Arts

    EIN 472487922 · Headquarters: El Paso, TX, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  52. American Institute of Graphic Arts

    EIN 481044562 · Headquarters: Wichita, KS, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  53. American Institute of Graphic Arts

    EIN 521600891 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. American Institute of Graphic Arts

    EIN 562216098 · Headquarters: Charlotte, NC, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  55. American Institute of Graphic Arts

    EIN 592929526 · Headquarters: Orlando, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. American Institute of Graphic Arts

    EIN 592958942 · Headquarters: Jacksonville, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. American Institute of Graphic Arts

    EIN 621421654 · Headquarters: N CHESTERFLD, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Institute of Graphic Arts

    EIN 621436317 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  59. American Institute of Graphic Arts

    EIN 650067880 · Headquarters: Homestead, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Institute of Graphic Arts

    EIN 841147421 · Headquarters: DURANGO, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Institute of Graphic Arts

    EIN 870462023 · Headquarters: South Salt Lake, UT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  62. American Institute of Graphic Arts

    EIN 900409091 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. American Institute of Graphic Arts

    EIN 911865127 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. American Institute of Graphic Arts

    EIN 931039552 · Headquarters: PORTLAND, OR, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. American Institute of Graphic Arts Asheville Chapter

    EIN 842265319 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. American Institute of Graphic Arts Atlanta Chapter

    EIN 911865010 · Headquarters: Atlanta, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. American Institute of Graphic Arts Phila

    EIN 232222829 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  68. American Institute of Graphic Arts Phx Chapter

    EIN 860766869 · Headquarters: Tempe, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. American Institute of Graphic Arts- Washington Dc

    EIN 521358932 · Headquarters: NORWOOD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. American Institute of Graphics Arts Inc San Diego

    EIN 330239800 · Headquarters: San Diego, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. American Institute of Homeopathy

    EIN 230343734 · Headquarters: CHARLOTTESVILLE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. American Institute of Human Relations

    EIN 222142273 · Headquarters: Oak Ridge, NJ, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  73. American Institute of Hydrology

    EIN 411489784 · Headquarters: FAIRHOPE, AL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. American Institute of Industrial Engineers

    EIN 237414466 · Headquarters: Kalamazoo, MI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  75. American Institute of Industrial Engineers Inc

    EIN 237400842 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. American Institute of Industrial Engineers Inc

    EIN 237400999 · Headquarters: Ruston, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. American Institute of Industrial Engineers Inc

    EIN 237406506 · Headquarters: New Brunswick, NJ, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  78. American Institute of Industrial Engineers Inc

    EIN 237421001 · Headquarters: BLACKSBURG, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Institute of Industrial Engineers Inc

    EIN 456038307 · Headquarters: Fargo, ND, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. American Institute of Industrial Engineers Inc

    EIN 510153744 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American Institute of Industrial Engineers Inc

    EIN 510153768 · Headquarters: Mississippi State, MS, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. American Institute of Industrial Engineers Inc

    EIN 510225508 · Headquarters: Platteville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. American Institute of Industrial Engineers Inc

    EIN 581392796 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. American Institute of Industrial Engineers Inc

    EIN 581831779 · Headquarters: Macon, GA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. American Institute of Industrial Engineers Inc

    EIN 626063748 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. American Institute of Industrial Englineers Inc

    EIN 756053417 · Headquarters: Lubbock, TX, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  87. American Institute of Inspectors Inc

    EIN 943160741 · Headquarters: South Lake Tahoe, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. American Institute of Marine Underwriters

    EIN 134962540 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. American Institute of Mathematics

    EIN 943205114 · Headquarters: PASADENA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. American Institute of Medical Education

    EIN 953692383 · Headquarters: Olympic Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. American Institute of Musical Studies

    EIN 751360233 · Headquarters: Kansas City, MO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  92. American Institute of Oral Biology

    EIN 941441071 · Headquarters: Loma Linda, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. American Institute of Organbuilders

    EIN 341204213 · Headquarters: BLOOMFIELD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. American Institute of Pakistan Studies

    EIN 710762618 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  95. American Institute of Parliamentarians

    EIN 521776278 · Headquarters: Bowie, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  96. American Institute of Philanthropy

    EIN 330491030 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. American Institute of Polish Culture in Tampa Bay Inc

    EIN 592181830 · Headquarters: CLEARWATER, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Institute of Prof Geologis

    EIN 846061199 · Headquarters: WESTMINSTER, CO, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  99. American Institute of Steel Construction

    EIN 130432350 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. American Institute of the City of New York C/o New York Academy of Sciences

    EIN 131971894 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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