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. Society for Management Information Systems

    EIN 832695537 · Headquarters: LOS GATOS, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Society for Management Information Systems

    EIN 870781113 · Headquarters: Scottsdale, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Society for Management Information Systems

    EIN 953858307 · Headquarters: LONG BEACH, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Society for Management Information Systems - Minnesota Chapter

    EIN 411396018 · Headquarters: SAINT LOUIS PARK, MN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Society for Marketing Professional Services

    EIN 010470737 · Headquarters: PORTLAND, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Society for Marketing Professional Services

    EIN 205007550 · Headquarters: Camp Hill, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Society for Marketing Professional Services

    EIN 222427019 · Headquarters: Latham, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Society for Marketing Professional Services

    EIN 223053668 · Headquarters: LINCOLN, RI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Society for Marketing Professional Services

    EIN 237433927 · Headquarters: Alexandria, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Society for Marketing Professional Services

    EIN 251685670 · Headquarters: Alexandria, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Society for Marketing Professional Services

    EIN 260601970 · Headquarters: Honolulu, HI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Society for Marketing Professional Services

    EIN 263077531 · Headquarters: Mount Pleasant, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Society for Marketing Professional Services

    EIN 263384496 · Headquarters: Granbury, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  14. Society for Marketing Professional Services

    EIN 311032598 · Headquarters: FORT THOMAS, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Society for Marketing Professional Services

    EIN 311128327 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Society for Marketing Professional Services

    EIN 351790143 · Headquarters: Indianapolis, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Society for Marketing Professional Services

    EIN 382381765 · Headquarters: Ann Arbor, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Society for Marketing Professional Services

    EIN 383761592 · Headquarters: Wichita, KS, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Society for Marketing Professional Services

    EIN 411489649 · Headquarters: Roseville, MN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Society for Marketing Professional Services

    EIN 431282344 · Headquarters: Kansas City, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Society for Marketing Professional Services

    EIN 452624257 · Headquarters: ANCHORAGE, AK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Society for Marketing Professional Services

    EIN 463815407 · Headquarters: Springfield, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Society for Marketing Professional Services

    EIN 470832091 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Society for Marketing Professional Services

    EIN 510653587 · Headquarters: Capistrano Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Society for Marketing Professional Services

    EIN 521625846 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Society for Marketing Professional Services

    EIN 541671159 · Headquarters: Virginia Beach, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Society for Marketing Professional Services

    EIN 561321778 · Headquarters: Charlotte, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Society for Marketing Professional Services

    EIN 561773386 · Headquarters: Raleigh, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Society for Marketing Professional Services

    EIN 581958487 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Society for Marketing Professional Services

    EIN 592730280 · Headquarters: Riviera Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Society for Marketing Professional Services

    EIN 593014049 · Headquarters: Jacksonville, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Society for Marketing Professional Services

    EIN 593562702 · Headquarters: Tampa, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Society for Marketing Professional Services

    EIN 600000847 · Headquarters: Eastlake, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Society for Marketing Professional Services

    EIN 611302040 · Headquarters: Lexington, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Society for Marketing Professional Services

    EIN 731621722 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Society for Marketing Professional Services

    EIN 742280550 · Headquarters: EASTLAKE, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Society for Marketing Professional Services

    EIN 742281237 · Headquarters: Austin, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Society for Marketing Professional Services

    EIN 743012502 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Society for Marketing Professional Services

    EIN 760069611 · Headquarters: Spring, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Society for Marketing Professional Services

    EIN 823568394 · Headquarters: Ontario, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Society for Marketing Professional Services

    EIN 850387944 · Headquarters: Albuquerque, NM, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Society for Marketing Professional Services

    EIN 860492022 · Headquarters: Phoenix, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Society for Marketing Professional Services

    EIN 873251807 · Headquarters: Alexandria, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Society for Marketing Professional Services

    EIN 873303047 · Headquarters: Alexandria, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Society for Marketing Professional Services

    EIN 873313613 · Headquarters: Alexandria, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Society for Marketing Professional Services

    EIN 873341250 · Headquarters: Alexandria, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Society for Marketing Professional Services

    EIN 873353970 · Headquarters: Alexandria, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Society for Marketing Professional Services

    EIN 880395979 · Headquarters: Las Vegas, NV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Society for Marketing Professional Services

    EIN 931025506 · Headquarters: PORTLAND, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Society for Marketing Professional Services - Ucf

    EIN 820548076 · Headquarters: Orlando, FL, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. Society for Marketing Professional Services Idaho Chapter Inc

    EIN 871977807 · Headquarters: Boise, ID, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  52. Society for Marketing Professional Services Los Angeles Chapter

    EIN 953896046 · Headquarters: TORRANCE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. Society for Marketing Professional Services San Diego Chapter

    EIN 330089223 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Society for Marketing Professional Services San Francisco Chapter of Smps

    EIN 942970254 · Headquarters: LAS VEGAS, NV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. Society for Marketing Professional Services Seattle Chapter

    EIN 911289881 · Headquarters: SEATTLE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Society for Maternal-fetal Medicine

    EIN 742052541 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Society for Medical Decision Making Inc

    EIN 310992960 · Headquarters: Albany, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Society for Menstrual Cycle Research

    EIN 133202333 · Headquarters: Center Valley, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Society for Military History

    EIN 530239268 · Headquarters: SOUTH PORTLAND, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Society for Molecular Biology & Evolution

    EIN 251719453 · Headquarters: GLEN ALLEN, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Society for Mucosal Immunology Inc

    EIN 541419447 · Headquarters: MENOMONEE FALLS, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Society for Music Production Research Inc

    EIN 923692455 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Society for Natural Philosophy Inc

    EIN 520804132 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Society for Neuroscience

    EIN 043158207 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Society for Neuroscience

    EIN 200069248 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  66. Society for Neuroscience

    EIN 237064518 · Headquarters: Richmond, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Society for Neuroscience

    EIN 237088459 · Headquarters: University Center, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Society for Neuroscience

    EIN 264320980 · Headquarters: Gainesville, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  69. Society for Neuroscience

    EIN 320265454 · Headquarters: Reno, NV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Society for Neuroscience

    EIN 330756869 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Society for Neuroscience

    EIN 363136029 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Society for Neuroscience

    EIN 451963225 · Headquarters: Rootstown, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  73. Society for Neuroscience

    EIN 454273450 · Headquarters: Orono, ME, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  74. Society for Neuroscience

    EIN 461667026 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Society for Neuroscience

    EIN 462934516 · Headquarters: Miami, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Society for Neuroscience

    EIN 465077853 · Headquarters: Rochester, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Society for Neuroscience

    EIN 465188709 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Society for Neuroscience

    EIN 471133127 · Headquarters: RTP, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Society for Neuroscience

    EIN 474832097 · Headquarters: Amherst, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Society for Neuroscience

    EIN 475315661 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Society for Neuroscience

    EIN 562599510 · Headquarters: Burlington, VT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Society for Neuroscience

    EIN 811664732 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Society for Neuroscience

    EIN 812591496 · Headquarters: Atlanta, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Society for Neuroscience

    EIN 814310807 · Headquarters: Indianapolis, IN, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  85. Society for Neuroscience

    EIN 822845867 · Headquarters: Albuquerque, NM, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Society for Neuroscience

    EIN 870346836 · Headquarters: Salt Lake City, UT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  87. Society for Neuroscience

    EIN 900619172 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Society for Neuroscience

    EIN 921873215 · Headquarters: Winston Salem, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Society for Neuroscience Houston Chapter

    EIN 990873905 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Society for Neuroscience in Anestheiology and Crit

    EIN 541519650 · Headquarters: RALEIGH, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  91. Society for Neurosciences Gecc George Ellet Cogghill Chapter

    EIN 262413528 · Headquarters: Lawrence, KS, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  92. Society for New Approaches to Photography

    EIN 460945232 · Headquarters: WEST BLOOMFIELD, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Society for New Music

    EIN 510198960 · Headquarters: Manlius, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Society for News Design

    EIN 232129331 · Headquarters: GREENSBORO, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Society for Non Profit Organizations

    EIN 363248099 · Headquarters: MIDDLEBURG, FL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. Society for Nondestructive Testing Inc Colorado Section

    EIN 846045186 · Headquarters: Walsenburg, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Society for Northwestern Vertebrate Biology

    EIN 916053399 · Headquarters: Olympia, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Society for Nutrition Education and Behavior Foundation

    EIN 510147071 · Headquarters: INDIANAPOLIS, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Society for Obstetric Anesthesia and Perinatology

    EIN 943079263 · Headquarters: LEXINGTON, KY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Society for Occupational Environmental Health

    EIN 521006480 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

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