Unknown & Unclassified nonprofits in Nebraska

Unknown & Unclassified nonprofits in Nebraska. Browse 5,775 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. Sigma Alpha Pi of Clarkson College

    EIN 464659846 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Sigma Chapter House Corporation for Kappa Kappa Gamma Fraternity

    EIN 470732175 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Sigma Chi Building Corporation

    EIN 470689933 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Sigma Chi Fraternity Alpha Epsilon Chapter

    EIN 470298330 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Sigma Gamma Rho Sorority Inc

    EIN 300693319 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  6. Sigma Nu Building Association of Nebraska Delta Eta Chapter

    EIN 476033780 · Headquarters: Elmwood, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Sigma Nu Fraternity

    EIN 470298360 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 363909803 · Headquarters: Hastings, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 476046144 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sigma Phi Epsilon Foundation

    EIN 476036836 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Sigma Phi Epsilon Fraternity

    EIN 470298365 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Sigma Phi Epsilon Fraternity Inc

    EIN 476025331 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  13. Sigma Phi Epsilon Fraternity Inc

    EIN 521316700 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Sigma Phi Epsilon Fraternity Nebraska Gamma

    EIN 943178329 · Headquarters: Kearney, NE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Sigma Tau Gamma Fraternity D/b/a Zeta Upsilon Associate Chapter

    EIN 822422481 · Headquarters: LINCOLN, NE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. Sigma Theta Tau

    EIN 470576544 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Sigma Theta Tau Inc

    EIN 311242952 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Sigma Theta Tau Inc

    EIN 351928354 · Headquarters: Eagle, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Sigma Theta Tau Inc

    EIN 363479076 · Headquarters: Fremont, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Sigma Theta Tau International Inc

    EIN 900266179 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Sigma Theta Tau International Inc

    EIN 911935305 · Headquarters: OMAHA, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Silver Spurs 4-H Club

    EIN 301423976 · Headquarters: Martell, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Silver Spurs 4H Club

    EIN 300544008 · Headquarters: LIncoln, NE, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  24. Simba Housing Inc F/k/a K & T Development Corporation

    EIN 470757818 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Simic Recreation

    EIN 470626308 · Headquarters: SUPERIOR, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  26. Simply Strings

    EIN 814386571 · Headquarters: McCook, NE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  27. Sioux County Historical Society Inc

    EIN 470573073 · Headquarters: Harrison, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Siouxland Swine

    EIN 272525082 · Headquarters: Dakota City, NE, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  29. Sixty Plus Club

    EIN 470614998 · Headquarters: CHADRON, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. SJ SEA Melodrama Troupe Inc

    EIN 274250116 · Headquarters: Omaha, NE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Sky Ranch Acres Neighborhood Assoc

    EIN 470618527 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Skyline Ranches Property Owner's

    EIN 470774784 · Headquarters: ELKHORN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Smocking Arts Guild of America Inc

    EIN 320152265 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Snake Falls Sportsmens Club

    EIN 470724554 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Snipe Fleet 567 of Lincoln Nebraska Inc

    EIN 332515336 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Snyder Senior Citizens Center Inc

    EIN 470649584 · Headquarters: Snyder, NE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  37. Society for Maintenance and Reliability Professionals Fnd

    EIN 900410740 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  38. Society for Marketing Professional Services

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

  39. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 237244019 · Headquarters: Fremont, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 363325677 · Headquarters: Nebraska City, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 363398033 · Headquarters: GRAND ISLAND, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 470722307 · Headquarters: ADAMS, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 470736405 · Headquarters: Elkhorn, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 476025148 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 476039425 · Headquarters: Hastings, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 470583173 · Headquarters: KEARNEY, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 476031816 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 510178504 · Headquarters: Minatare, NE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  49. Society for Preservation and Encourmt a024 Ord

    EIN 470838872 · Headquarters: ORD, NE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  50. Society of American Foresters

    EIN 521273257 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Society of American Military Engineers-o

    EIN 476046146 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Society of Beta Sigma Psi

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

  53. Society of Beta Sigma Psi

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

  54. Society of Financial Service Profes Sionals Kansas City Chapter

    EIN 237309588 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. Society of Health and Physical Educators of Nebraska

    EIN 473566101 · Headquarters: FREMONT, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Society of Manufacturing Engineers

    EIN 470573189 · Headquarters: Ashland, NE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Society of St Vincent De Paul St Joseph Beatrice Confernece

    EIN 461935245 · Headquarters: Beatrice, NE, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  58. Society of Women Engineers

    EIN 263392311 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Soda Fountain Preservation Association

    EIN 911918711 · Headquarters: OMAHA, NE, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  60. Soil and Water Conservation Society

    EIN 470782960 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Sokol Omaha

    EIN 470315047 · Headquarters: PAPILLION, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Sokol South Omaha

    EIN 470396406 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Sokolof Grandchildren Charitable Foundat

    EIN 206423564 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  64. Somali Bantu Civil Rights Movement

    EIN 823269611 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  65. Some of Us 4 All of Us

    EIN 862748981 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Sons and Daughters Pearl Harbor Survivors

    EIN 821956047 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Sons of Italy in America

    EIN 270017198 · Headquarters: BELLEVUE, NE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  68. Sons of Italy in America 9011 Grand Lodge of Ne

    EIN 476071009 · Headquarters: Omaha, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Sons of Norway

    EIN 470738932 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Sons of the American Legion

    EIN 470716395 · Headquarters: Ohiowa, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Sons of Union Veterans of the Civil War

    EIN 262141322 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Sons of Union Veterans of the Civil War

    EIN 262142961 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Sons of Union Veterans of the Civil War

    EIN 262153433 · Headquarters: Wisner, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Sons of Union Veterans of the Civil War

    EIN 262166200 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Sons of Union Veterans of the Civil War

    EIN 262190985 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Sons of Union Veterans of the Civil War

    EIN 273143889 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Sons of Union Veterans of the Civil War

    EIN 470827910 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. South Central Behavioral Services

    EIN 470645229 · Headquarters: Kearney, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. South Central Corvette Club Inc

    EIN 472079860 · Headquarters: Grand Island, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. South Central Developmental Services Inc

    EIN 470563789 · Headquarters: Cozad, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. South Central Ne Agency on Aging

    EIN 470559329 · Headquarters: Kearney, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. South Central Nebraska Sportsmens Club

    EIN 470627719 · Headquarters: DONIPHAN, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. South Lincoln Track Club

    EIN 470594133 · Headquarters: LINCOLN, NE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. South Logan Cemetery Assoc

    EIN 470712008 · Headquarters: St Paul, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. South Omaha Latino Baseball Inc

    EIN 300535577 · Headquarters: omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  86. South Salt Creek Community Organization Inc

    EIN 470589799 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. South Sioux City Area Chamber of Commerce & Tourism

    EIN 470366473 · Headquarters: South Sioux City, NE, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. South Sioux City Community Foundation Inc

    EIN 363497298 · Headquarters: SOUTH SIOUX CITY, NE, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  89. South Sioux City Convention and Visitor Bureau

    EIN 470781461 · Headquarters: SOUTH SIOUX CITY, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. South Sioux City Racing and Events Cente

    EIN 811389085 · Headquarters: WINNEBAGO, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Southeast Community College

    EIN 470549567 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990

  92. Southeast Library System

    EIN 510238821 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Southeast Nebraska Youth for Christ

    EIN 470543176 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  94. Southern Cass Sowers 4-H Club

    EIN 371573961 · Headquarters: Weeping Water, NE, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  95. Southern Sarpy Activities Program

    EIN 363377779 · Headquarters: SPRINGFIELD, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Southport Parkway West Owners Assoc

    EIN 882430101 · Headquarters: ELKHORN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Southside Shooting Sports

    EIN 922997237 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Southview Christian Church

    EIN 470383919 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-T

  99. Southwest Nebraska Community Theatre Association Inc

    EIN 470709294 · Headquarters: McCook, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Southwest Nebraska Genealogy Society

    EIN 470580533 · Headquarters: McCook, NE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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