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. National Sorority of Phi Delta Kappa Inc

    EIN 942555728 · Headquarters: Panama City, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. National Sorority of Phi Delta Kappa Inc

    EIN 942555729 · Headquarters: OVERLAND PARK, KS, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. National Sorority of Phi Delta Kappa Inc

    EIN 942555730 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. National Sorority of Phi Delta Kappa Inc

    EIN 942555732 · Headquarters: Durham, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. National Sorority of Phi Delta Kappa Inc

    EIN 942555735 · Headquarters: Fort Worth, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. National Sorority of Phi Delta Kappa Inc

    EIN 942555738 · Headquarters: Virginia Beach, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. National Sorority of Phi Delta Kappa Inc

    EIN 942555742 · Headquarters: Hardaway, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. National Sorority of Phi Delta Kappa Inc

    EIN 942555745 · Headquarters: Pleasant Grove, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. National Sorority of Phi Delta Kappa Inc

    EIN 953667907 · Headquarters: INGLEWOOD, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. National Sorority of Phi Delta Kappa Inc

    EIN 953895855 · Headquarters: Las Vegas, NV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. National Sorority of Phi Delta Kappa Inc - Gamma Chapter

    EIN 521340567 · Headquarters: GWYNN OAK, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  12. National Sorority of Phi Delta Kappa Inc Alpha

    EIN 510189547 · Headquarters: JERSEY CITY, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. National Sorority of Phi Delta Kappa Inc Beta Delta Chapter

    EIN 510189559 · Headquarters: CHESTERFIELD, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. National Sorority of Phi Delta Kappa Inc Eastern Region

    EIN 912131137 · Headquarters: IRVINGTON, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. National Sorority of Phi Delta Kappa Inc Mu Chapter

    EIN 510245212 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. National Sorority of Phi Delta Kappa Inc Xi Chapte

    EIN 231999448 · Headquarters: CHESTER, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. National Sorority of Phi Delta Kappa Inc Zeta Gamma Chapter

    EIN 383856611 · Headquarters: CHESTERFIELD, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. National Sorority of Phi Delta Kappa Incorporated

    EIN 731266279 · Headquarters: LAWTON, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. National Sorority of Phi Delta KappaInc Alpha Rho Chapter

    EIN 510189571 · Headquarters: Dallas, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. National Sorority of Phi DeltaInc Southwest Region

    EIN 352427463 · Headquarters: Port Arthur, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. National Sorority of Phi Kappa Inc Southeast

    EIN 364714987 · Headquarters: Douglasville, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. National Space Club - Huntsville

    EIN 581975897 · Headquarters: HUNTSVILLE, AL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. National Space Society

    EIN 237417411 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. National Space Society

    EIN 411383891 · Headquarters: Brooklyn Park, MN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. National Space Society

    EIN 451025590 · Headquarters: Cave Creek, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. National Space Society

    EIN 453009535 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. National Space Society

    EIN 454025177 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. National Space Society

    EIN 455463201 · Headquarters: Schaumburg, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. National Space Society

    EIN 464559579 · Headquarters: SAINT LOUIS, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. National Space Society

    EIN 465768572 · Headquarters: LOUISVILLE, KY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. National Space Society

    EIN 471097298 · Headquarters: Fremont, CA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  32. National Space Society

    EIN 521773542 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. National Space Society

    EIN 521773563 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. National Space Society

    EIN 521773584 · Headquarters: KIEL, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. National Space Society

    EIN 521890121 · Headquarters: Burns, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National Space Society

    EIN 521890175 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. National Space Society

    EIN 630867632 · Headquarters: HUNTSVILLE, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. National Space Society

    EIN 823516682 · Headquarters: League City, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. National Space Society

    EIN 860574904 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. National Space Society

    EIN 861623742 · Headquarters: Clive, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. National Space Society

    EIN 870618445 · Headquarters: Salt Lake City, UT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  42. National Space Society

    EIN 911734937 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. National Space Society

    EIN 942881971 · Headquarters: Sacramento, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. National Space Society

    EIN 942925459 · Headquarters: Oregon City, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. National Space Society

    EIN 942925491 · Headquarters: Alexandria, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Space Society

    EIN 942925492 · Headquarters: Englewood, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. National Space Society

    EIN 942925498 · Headquarters: Parma, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. National Space Society

    EIN 942925500 · Headquarters: TUCSON, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. National Space Society

    EIN 953762478 · Headquarters: CARSON, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. National Space Society

    EIN 954492387 · Headquarters: Franklin, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Spasmodic Dysphonia Association

    EIN 382918042 · Headquarters: Itasca, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. National Speakers Association

    EIN 251658846 · Headquarters: Bethel Park, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. National Speakers Association

    EIN 260277431 · Headquarters: Las Vegas, NV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. National Speakers Association

    EIN 330062484 · Headquarters: Corona, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. National Speakers Association

    EIN 363213541 · Headquarters: Schaumburg, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. National Speakers Association

    EIN 382575882 · Headquarters: Farmington, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. National Speakers Association

    EIN 391503352 · Headquarters: Fox Point, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  58. National Speakers Association

    EIN 742422634 · Headquarters: Louisville, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. National Speakers Association

    EIN 742422638 · Headquarters: West Palm Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. National Speakers Association

    EIN 742422640 · Headquarters: Scottsdale, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. National Speakers Association

    EIN 742422643 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. National Speakers Association

    EIN 742430458 · Headquarters: ALBUQUERQUE, NM, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. National Speakers Association

    EIN 753249510 · Headquarters: Richmond, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. National Speakers Association

    EIN 760410986 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. National Speakers Association

    EIN 860290674 · Headquarters: MINNEAPOLIS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. National Speakers Association

    EIN 942789458 · Headquarters: Walnut Creek, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. National Speakers Association (New York City Nsa)

    EIN 112594963 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. National Speakers Association - Colorado Chapter

    EIN 742510958 · Headquarters: DENVER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. National Speakers Association Austin

    EIN 272290534 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. National Speakers Association Ohio Nsa

    EIN 742510969 · Headquarters: HILLIARD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. National Speakers Association Socal

    EIN 953910922 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. National Speakers Association Washington Dc

    EIN 742422648 · Headquarters: Springfield, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. National Speakers Association Western North Carolina

    EIN 990639269 · Headquarters: Candler, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. National Speakers Association- Mn Chapter

    EIN 742422650 · Headquarters: BLAINE, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. National Speakers Assoication

    EIN 742422639 · Headquarters: Raleigh, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. National Spectrum Management Association Inc

    EIN 541375718 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. National Speech and Debate Association Northern Illinois Dist

    EIN 823119291 · Headquarters: Northbrook, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. National Speleological Society Inc

    EIN 860381336 · Headquarters: TUCSON, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. National Spinal Cord Injury Assoc Greater Milwaukee Area Chapter Inc

    EIN 396095952 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  80. National Spinal Cord Injury Association

    EIN 203466029 · Headquarters: Urbandale, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. National Spiritual Assembly of the Bahais of the Hawaiian Islands

    EIN 990187168 · Headquarters: Kaunakakai, HI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  82. National Spiritual Assembly of the Bahais of the Hawaiian Islands

    EIN 990187169 · Headquarters: Wailuku, HI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  83. National Spiritualist Assn of Churches

    EIN 386151971 · Headquarters: Jackson, MI, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  84. National Sporting Goods Association

    EIN 362139222 · Headquarters: DOWNERS GROVE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. National Sports Media Association Inc

    EIN 510178824 · Headquarters: WINSTONSALEM, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. National Square Dance Campers Assoc Iation Pa Chapter S-2

    EIN 232458708 · Headquarters: Turbotville, PA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  87. National Square Dance Campers Association Inc

    EIN 391099644 · Headquarters: Butler, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. National Square Dance Convention

    EIN 431300332 · Headquarters: GREENBELT, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. National Stabilization Agreement of the Sheet Metal Industry Trust Fund

    EIN 237315003 · Headquarters: FALLS CHURCH, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. National Staff Org-va Prof Staff Assn

    EIN 541034175 · Headquarters: HENRICO, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. National Staff Organization

    EIN 010395080 · Headquarters: Augusta, ME, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. National Staff Organization

    EIN 066206678 · Headquarters: Suffield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. National Staff Organization

    EIN 201837147 · Headquarters: Montgomery, AL, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  94. National Staff Organization

    EIN 300519621 · Headquarters: OKLAHOMA CITY, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Staff Organization

    EIN 320089443 · Headquarters: Montpelier, VT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. National Staff Organization

    EIN 363657992 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. National Staff Organization

    EIN 371578875 · Headquarters: Little Rock, AR, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  98. National Staff Organization

    EIN 421103480 · Headquarters: Farley, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. National Staff Organization

    EIN 421230065 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. National Staff Organization

    EIN 451626547 · Headquarters: BISMARCK, ND, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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