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 Chemical Society

    EIN 237282955 · Headquarters: Quincy, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Chemical Society

    EIN 237284206 · Headquarters: Kronenwetter, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. American Chemical Society

    EIN 237284207 · Headquarters: Mount Pulaski, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Chemical Society

    EIN 237304258 · Headquarters: Mayville, ND, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Chemical Society

    EIN 237377292 · Headquarters: Peoria, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. American Chemical Society

    EIN 256062813 · Headquarters: Erie, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Chemical Society

    EIN 260090704 · Headquarters: Loveland, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Chemical Society

    EIN 260657692 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Chemical Society

    EIN 272567795 · Headquarters: Milledgeville, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. American Chemical Society

    EIN 310932334 · Headquarters: Lexington, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Chemical Society

    EIN 310942031 · Headquarters: Corpus Christi, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. American Chemical Society

    EIN 311059282 · Headquarters: Cross Lanes, WV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Chemical Society

    EIN 316049380 · Headquarters: Marysville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Chemical Society

    EIN 316050119 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Chemical Society

    EIN 316050676 · Headquarters: Vincent, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Chemical Society

    EIN 340810128 · Headquarters: Ashland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Chemical Society

    EIN 346524266 · Headquarters: New Franklin, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Chemical Society

    EIN 346538411 · Headquarters: Chardon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Chemical Society

    EIN 346554938 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Chemical Society

    EIN 346555640 · Headquarters: Wapakoneta, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. American Chemical Society

    EIN 346556597 · Headquarters: Youngstown, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. American Chemical Society

    EIN 356023298 · Headquarters: Owensboro, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Chemical Society

    EIN 356041348 · Headquarters: Saint Joseph, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. American Chemical Society

    EIN 356041922 · Headquarters: Mulberry, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. American Chemical Society

    EIN 356042259 · Headquarters: FORT WAYNE, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. American Chemical Society

    EIN 356042338 · Headquarters: Bloomington, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Chemical Society

    EIN 356043174 · Headquarters: Terre Haute, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Chemical Society

    EIN 356055972 · Headquarters: New Haven, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. American Chemical Society

    EIN 363157672 · Headquarters: Plainfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. American Chemical Society

    EIN 376045542 · Headquarters: Champaign, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. American Chemical Society

    EIN 376058278 · Headquarters: Carbondale, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. American Chemical Society

    EIN 382259841 · Headquarters: St Joseph, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Chemical Society

    EIN 382580711 · Headquarters: Ortonville, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Chemical Society

    EIN 386088144 · Headquarters: Ypsilanti, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. American Chemical Society

    EIN 386088806 · Headquarters: Marquette, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. American Chemical Society

    EIN 386088807 · Headquarters: Rockford, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. American Chemical Society

    EIN 386090760 · Headquarters: Vicksburg, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. American Chemical Society

    EIN 396065798 · Headquarters: Arlington, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. American Chemical Society

    EIN 396078144 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. American Chemical Society

    EIN 396086169 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. American Chemical Society

    EIN 396089059 · Headquarters: Brookfield, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. American Chemical Society

    EIN 411321821 · Headquarters: Maple Grove, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Chemical Society

    EIN 426075875 · Headquarters: GRINNELL, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Chemical Society

    EIN 426077347 · Headquarters: Ames, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Chemical Society

    EIN 436049918 · Headquarters: Elsah, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. American Chemical Society

    EIN 436072496 · Headquarters: Rolla, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. American Chemical Society

    EIN 436079394 · Headquarters: Columbia, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. American Chemical Society

    EIN 466015198 · Headquarters: Sioux City, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. American Chemical Society

    EIN 470586176 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. American Chemical Society

    EIN 476033609 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. American Chemical Society

    EIN 480853502 · Headquarters: Wichita, KS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. American Chemical Society

    EIN 486114442 · Headquarters: Lawrence, KS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American Chemical Society

    EIN 486116434 · Headquarters: Manhattan, KS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. American Chemical Society

    EIN 510148705 · Headquarters: Jacksonville, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. American Chemical Society

    EIN 510213024 · Headquarters: Rincon, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Chemical Society

    EIN 510227769 · Headquarters: Rockford, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Chemical Society

    EIN 510236014 · Headquarters: Atlanta, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Chemical Society

    EIN 510236032 · Headquarters: Anchorage, AK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Chemical Society

    EIN 521601507 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Chemical Society

    EIN 522372789 · Headquarters: Savannah, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Chemical Society

    EIN 526054070 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. American Chemical Society

    EIN 526054151 · Headquarters: San Ramon, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Chemical Society

    EIN 526055359 · Headquarters: Frostburg, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Chemical Society

    EIN 526059804 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. American Chemical Society

    EIN 546043489 · Headquarters: Virginia Beach, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. American Chemical Society

    EIN 550675452 · Headquarters: Huntington, WV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. American Chemical Society

    EIN 561317493 · Headquarters: Charlotte, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. American Chemical Society

    EIN 562218139 · Headquarters: MC ADENVILLE, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. American Chemical Society

    EIN 566058796 · Headquarters: Trinity, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. American Chemical Society

    EIN 566059048 · Headquarters: Wilmington, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. American Chemical Society

    EIN 576021186 · Headquarters: Aiken, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. American Chemical Society

    EIN 576024658 · Headquarters: Charleston, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Chemical Society

    EIN 581507770 · Headquarters: Americus, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. American Chemical Society

    EIN 586071148 · Headquarters: Athens, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. American Chemical Society

    EIN 596143883 · Headquarters: Gainesville, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. American Chemical Society

    EIN 611561711 · Headquarters: Saint Joseph, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. American Chemical Society

    EIN 616032981 · Headquarters: LOUISVILLE, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. American Chemical Society

    EIN 616037879 · Headquarters: Martin, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Chemical Society

    EIN 621020092 · Headquarters: Antioch, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. American Chemical Society

    EIN 621643519 · Headquarters: LITTLE ROCK, AR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American Chemical Society

    EIN 626018822 · Headquarters: MEMPHIS, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. American Chemical Society

    EIN 626045650 · Headquarters: knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Chemical Society

    EIN 626046796 · Headquarters: CHATTANOOGA, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. American Chemical Society

    EIN 626046842 · Headquarters: Kingsport, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. American Chemical Society

    EIN 636043616 · Headquarters: Huntsville, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. American Chemical Society

    EIN 636044378 · Headquarters: Birmingham, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. American Chemical Society

    EIN 636052389 · Headquarters: Auburn, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. American Chemical Society

    EIN 636062693 · Headquarters: Mobile, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. American Chemical Society

    EIN 636062694 · Headquarters: Florence, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. American Chemical Society

    EIN 640703031 · Headquarters: Oxford, MS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Chemical Society

    EIN 646025010 · Headquarters: Clinton, MS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Chemical Society

    EIN 650355083 · Headquarters: Ave Maria, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Chemical Society

    EIN 660684194 · Headquarters: San Juan, PR, RQ · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. American Chemical Society

    EIN 716056811 · Headquarters: FAYETTEVILLE, AR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. American Chemical Society

    EIN 716057766 · Headquarters: Morrilton, AR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. American Chemical Society

    EIN 716104814 · Headquarters: HUNTINGTON, WV, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. American Chemical Society

    EIN 726023867 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Chemical Society

    EIN 726027117 · Headquarters: Bossier City, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. American Chemical Society

    EIN 726027118 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. American Chemical Society

    EIN 736095405 · Headquarters: Alva, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

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