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 of American Travel Writers

    EIN 526055577 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Society of Anglican Theologians

    EIN 872647152 · Headquarters: Ambridge, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Society of Antique Modelers

    EIN 222152058 · Headquarters: Phoenix, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Society of Antique Modelers

    EIN 873151249 · Headquarters: Kirkland, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Society of Applied Geoscientists and Engineers Inc

    EIN 871323954 · Headquarters: St Martinville, LA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  6. Society of Applied Hypnosis Inc

    EIN 200571981 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  7. Society of Arkansas Hospital Purchasing & Materials Mngmnt

    EIN 710546495 · Headquarters: Little Rock, AR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Society of Army Physician Assistants

    EIN 741964666 · Headquarters: MONMOUTH, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  9. Society of Artificial Intelligence Research

    EIN 932727937 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Society of Arts & Crafts

    EIN 630821217 · Headquarters: MONTGOMERY, AL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. Society of Asian Federal Officers Inc

    EIN 113037665 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Society of Asphalt Technologists Inc

    EIN 222721353 · Headquarters: DAYTON, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Society of Association Executives of Nevada

    EIN 822534849 · Headquarters: Las Vegas, NV, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  14. Society of Auditor Appraisers

    EIN 941681198 · Headquarters: Garden Grove, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Society of Australasian Specialties Oceania

    EIN 953436257 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Society of Automotive Analysts

    EIN 382711448 · Headquarters: FARMINGTON HILLS, MI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  17. Society of Automotive Historians Inc

    EIN 351379186 · Headquarters: Palm Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Society of Automotive Hstrians-wi Chapt Inckrause Pblctn

    EIN 391359576 · Headquarters: Neenah, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Society of Bank Executives

    EIN 881492297 · Headquarters: SALT LAKE CITY, UT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  20. Society of Behavioral Medicine Inc

    EIN 132984912 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Society of Beta Sigma Iota Chapter

    EIN 436065825 · Headquarters: Columbia, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Society of Beta Sigma Psi

    EIN 350901401 · Headquarters: WEST LAFAYETTE, IN, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  23. Society of Beta Sigma Psi

    EIN 352267609 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Society of Beta Sigma Psi

    EIN 430636074 · Headquarters: ROLLA, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Society of Beta Sigma Psi

    EIN 470105380 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Society of Beta Sigma Psi - Ames Alumni

    EIN 426095205 · Headquarters: JOHNSTON, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Society of Beta Sigma Psi Alpha Alumni Chapter

    EIN 376060576 · Headquarters: SAINT CHARLES, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Society of Beta Sigma Psi National Fraternity

    EIN 476027267 · Headquarters: GRAPEVINE, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Society of Beta Sigma Psi Zeta Chapter

    EIN 480580540 · Headquarters: MANHATTAN, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Society of Black Hills Pioneers

    EIN 460323680 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Society of Body Mind & Soul Enlightenment of USA Inc

    EIN 462919618 · Headquarters: Flushing, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Society of Boonesborough

    EIN 510181717 · Headquarters: Richmond, KY, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  33. Society of Broadcast Engineers

    EIN 331862416 · Headquarters: Fargo, ND, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Society of Broadcast Engineers Chapter 112

    EIN 411658660 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Society of Broadcast Engineers Chapter 22 Inc

    EIN 161414385 · Headquarters: SYRACUSE, NY, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  36. Society of Broadcast Engineers Chapter 24 Incorporated

    EIN 272780426 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Society of Broadcast Engineers Chapter 39 of Tampa Bay Incorporat

    EIN 464097051 · Headquarters: Palm Harbor, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Society of Broadcast Engineers Chapter 47

    EIN 161726352 · Headquarters: Burbank, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Society of Broadcast Engineers Chapter 55

    EIN 431226678 · Headquarters: Manchester, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Society of Broadcast Engineers Chapter 9

    EIN 860740741 · Headquarters: Phoenix, AZ, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  41. Society of Broadcast Engineers Inc

    EIN 237117479 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Society of Broadcasting Engineers Chapter 37

    EIN 521652979 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Society of Cable Telecommunications Engineers Inc

    EIN 222158409 · Headquarters: LOUISVILLE, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Society of California Archivists Inc

    EIN 680321831 · Headquarters: BURBANK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Society of California Care Operators

    EIN 823991070 · Headquarters: Sherman Oaks, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. Society of Camera Operators

    EIN 953617325 · Headquarters: Burbank, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Society of Cardiovascular Anesthesiologists

    EIN 720863580 · Headquarters: EAST DUNDEE, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  48. Society of Care Operators

    EIN 473992251 · Headquarters: GLENDALE, CA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  49. Society of Certified Appraisers

    EIN 237321690 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  50. Society of Certified Insurance Counselor

    EIN 741785679 · Headquarters: AUSTIN, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Society of Certified Insurance Service Representatives Inc

    EIN 742493055 · Headquarters: AUSTIN, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Society of Chairs of Radiology Departments

    EIN 870321939 · Headquarters: WARRENVILLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Society of Chartered Property & Casuality Underwriters

    EIN 471402525 · Headquarters: Malvern, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Society of Chartered Property & Casualty Under Cle

    EIN 346558961 · Headquarters: Strongsville, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  55. Society of Chartered Property & Casualty Underwriters Inc

    EIN 136129984 · Headquarters: Malvern, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Society of Chartered Property & Casulty Underwriters

    EIN 236298199 · Headquarters: LANCASTER, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Society of Chemical Industry-american Section

    EIN 046208990 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Society of Chemical Manufacturers and Affiliates

    EIN 132903885 · Headquarters: ARLINGTON, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Society of Chesed Lavrohom Hachn

    EIN 237440863 · Headquarters: BROOKLYN, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Society of Chinese Performing Arts Sf

    EIN 510192368 · Headquarters: Hillsborough, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Society of Chiropractic Orthospinology Inc

    EIN 581400787 · Headquarters: WALESKA, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Society of Christian Philosophers

    EIN 382448793 · Headquarters: GRAND RAPIDS, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Society of Chust & Vicinity Inc

    EIN 112100399 · Headquarters: Teaneck, NJ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Society of Claim Law Associates Inc

    EIN 521763519 · Headquarters: Basking Ridge, NJ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Society of Clinical Nurse Specialists Educators

    EIN 371603820 · Headquarters: Murray, KY, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  66. Society of Collision Repair Specialists

    EIN 431275465 · Headquarters: MECHANICSVILLE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Society of Colonial Wars in New Jersey

    EIN 226035502 · Headquarters: OLDWICK, NJ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Society of Colonial Wars in Ohio C/o Jeremy Moore

    EIN 316050248 · Headquarters: CINCINNATI, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Society of Colonial Wars in Ri & Profidence Plantations

    EIN 056013736 · Headquarters: warwick, RI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Society of Colonial Wars in the Commonwealth of Ma

    EIN 046049519 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  71. Society of Colonial Wars in the Commonwealth of Pennsylvania

    EIN 236229665 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Society of Colonial Wars in the District of Columbia

    EIN 526078080 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Society of Colonial Wars in the State of Connecticut

    EIN 066026050 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Society of Colonial Wars in the State of Florida

    EIN 592290058 · Headquarters: Palm Beach, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Society of Colonial Wars in the State of Illinois

    EIN 366139321 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Society of Colonial Wars in the State of Indiana

    EIN 351842640 · Headquarters: Kokomo, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Society of Colonial Wars in the State of Maine

    EIN 262329216 · Headquarters: Portland, ME, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  78. Society of Colonial Wars in the State of New Hampshire

    EIN 352328746 · Headquarters: Portsmouth, NH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Society of Colonial Wars in the State of Texas

    EIN 742341245 · Headquarters: Lakeway, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Society of Communications Technology Consultants International Inc

    EIN 133063209 · Headquarters: ALBANY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Society of Composers & Lyricists

    EIN 954326986 · Headquarters: BEVERLY HILLS, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Society of Composers Inc

    EIN 136201928 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Society of Consumer Affairs Professionals in Business

    EIN 237270642 · Headquarters: CHANDLER, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Society of Contemporary Art Historians

    EIN 821551772 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Society of Core Analysts

    EIN 752255589 · Headquarters: New Brunswick, Rusagonis, CA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Society of Cosmetic Chemists

    EIN 112859555 · Headquarters: MELVILLE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Society of Cosmetic Chemists

    EIN 311167944 · Headquarters: Mason, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Society of Cosmetic Chemists

    EIN 341476677 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Society of Cosmetic Chemists

    EIN 371453757 · Headquarters: Cape Canaveral, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Society of Cosmetic Chemists

    EIN 431372761 · Headquarters: Maryland Heights, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Society of Cosmetic Chemists

    EIN 521398221 · Headquarters: Hanover, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Society of Cosmetic Chemists

    EIN 570800062 · Headquarters: Charlotte, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Society of Cosmetic Chemists California Chapter Inc

    EIN 222720622 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Society of Cosmetic Chemists Ct Chapter

    EIN 061136038 · Headquarters: ANSONIA, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Society of Cosmetic Chemists Florida Chapter

    EIN 592540784 · Headquarters: WESTIN, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Society of Cosmetic Chemists Tc

    EIN 222713742 · Headquarters: NEW RICHMOND, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. Society of Cosmetic Chemists-SE Chapter

    EIN 581628867 · Headquarters: Eagleville, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Society of Creative Arts Newtown

    EIN 060978466 · Headquarters: NEWTOWN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Society of Critical Care Anesthesiologists

    EIN 363422600 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Society of Critical Care Medicine

    EIN 043282722 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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