Unknown & Unclassified nonprofits in Iowa

Unknown & Unclassified nonprofits in Iowa. Browse 15,415 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. Sisu Panama Scholastic Foundation

    EIN 270349913 · Headquarters: Cedar Rapids, IA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  2. Sixty Plus Nutrition Agency Inc

    EIN 421015510 · Headquarters: Lake View, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Ski Patrol Inc

    EIN 461328092 · Headquarters: Council Bluffs, IA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Skiowans

    EIN 421275416 · Headquarters: Burlington, IA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. Sky-hi Flyers-eaa Chapter 1295

    EIN 271888686 · Headquarters: Sheldon, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Sl Moore Charity Foundation

    EIN 420727480 · Headquarters: CLIVE, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. Slater Community Club

    EIN 421219978 · Headquarters: SLATER, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Small Ember

    EIN 994119347 · Headquarters: Sioux City, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Smallworld Preschool

    EIN 421372768 · Headquarters: WATERLOO, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Smart Growth Development

    EIN 271711910 · Headquarters: DUBUQUE, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Smocking Arts Guild of America Inc

    EIN 581629514 · Headquarters: Cedar Rapids, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Smoke on the Water

    EIN 812759285 · Headquarters: LYNNVILLE, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Smokey Ridge Muzzle Loaders

    EIN 262188126 · Headquarters: Ackley, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Sno Hawks Inc

    EIN 800655433 · Headquarters: Waterloo, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Snow Drifters Inc

    EIN 421359790 · Headquarters: Coralville, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Social Distance Speedway

    EIN 933288588 · Headquarters: IOWA FALLS, IA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  17. Societa Vittoria Italiana

    EIN 426089501 · Headquarters: ANKENY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Society for Collegiate Journalists

    EIN 371092014 · Headquarters: Storm Lake, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Society for Design Administration Iowa Chapter

    EIN 263557941 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  20. Society for Human Resource Management Central Iowa

    EIN 421360847 · Headquarters: DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Society for Italian Historical Studies

    EIN 237189781 · Headquarters: Grinnell, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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

    EIN 426092564 · Headquarters: Algona, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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

    EIN 426092565 · Headquarters: Cedar Rapids, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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

    EIN 426092566 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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

    EIN 912027850 · Headquarters: Muscatine, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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

    EIN 421094454 · Headquarters: Lawton, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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

    EIN 426093615 · Headquarters: Davenport, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Society for Preservation &Amp Encourmt of Barbershop Quartet Singing Amer

    EIN 262257741 · Headquarters: Fort Dodge, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. Society for Technical Communication

    EIN 541578041 · Headquarters: Iowa City, IA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  30. 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

  31. Society of Critical Care Medicine North Central Chapter

    EIN 822491709 · Headquarters: Ames, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  32. Society of Financial Service Professionals Eastern Iowa Chapter

    EIN 421157957 · Headquarters: Solon, IA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  33. Society of Health and Physical Educators

    EIN 521124291 · Headquarters: Ames, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Society of Italian Americans

    EIN 421194982 · Headquarters: WEST DES MOINES, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Society of Manufacturing Engineers

    EIN 426088568 · Headquarters: Waterloo, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Society of Manufacturing Engineers

    EIN 426102468 · Headquarters: West Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Society of Manufacturing Engineers

    EIN 426102469 · Headquarters: Dubuque, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Society of Phi Zeta

    EIN 426100377 · Headquarters: Ames, IA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Society of St Vincent De Paul

    EIN 420890358 · Headquarters: DUBUQUE, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Society of Women Engineers

    EIN 320302186 · Headquarters: Iowa City, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Society of Women Engineers

    EIN 453669338 · Headquarters: Dubuque, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Society of Women Engineers

    EIN 470729680 · Headquarters: Council Bluffs, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Society of Women Engineers

    EIN 912078075 · Headquarters: Marion, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Society of Women Engineers Heart of Iowa Chapter

    EIN 223377477 · Headquarters: Granger, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Soldier Valley Homes Inc

    EIN 421100628 · Headquarters: Algona, IA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  46. Solon Area Community Foundation

    EIN 421182371 · Headquarters: Solon, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Solon Beef Days Committee Inc

    EIN 421218451 · Headquarters: SOLON, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Solon Education Association

    EIN 237346198 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Solon Public Library Foundation

    EIN 203516134 · Headquarters: Solon, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Son Foundation

    EIN 421343371 · Headquarters: PERRY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  51. Sonora Grange 2176

    EIN 510678450 · Headquarters: Grinnell, IA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  52. Sons and Daughters of Pearl Harbor Survivors

    EIN 461791968 · Headquarters: Fort Dodge, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Sons of Confederate Veterans Inc

    EIN 582296463 · Headquarters: DES MOINES, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Sons of Norway

    EIN 237525612 · Headquarters: Decorah, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Sons of Norway

    EIN 421062833 · Headquarters: Lake Mills, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Sons of Norway

    EIN 421358941 · Headquarters: Windsor Heights, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Sons of Norway

    EIN 421494598 · Headquarters: BETTENDORF, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Sons of Norway

    EIN 510172797 · Headquarters: Marion, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Sons of Norway

    EIN 510172799 · Headquarters: Cedar Falls, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Sons of Union Veterans of the Civil War

    EIN 237019265 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Sons of Union Veterans of the Civil War

    EIN 273446301 · Headquarters: Iowa City, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Sons of Union Veterans of the Civil War

    EIN 331078468 · Headquarters: Asbury, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Sons of Union Veterans of the Civil War

    EIN 421386646 · Headquarters: Ankeny, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Sons of Union Veterans of the Civil War

    EIN 421497725 · Headquarters: Griswold, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Sons of Union Veterans of the Civil War

    EIN 814297740 · Headquarters: Cambridge, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Sonstegard-tyrrell Scholarship Foundation

    EIN 421335347 · Headquarters: ESTHERVILLE, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  67. Sooland Amateur Radio Association

    EIN 421154091 · Headquarters: Lawton, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Sooland Antique Car Club

    EIN 273257702 · Headquarters: Sioux City, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Sorden Cemetery Assn

    EIN 420737227 · Headquarters: Keswick, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. South Central Iowa Federation of La Afl-cio

    EIN 420784747 · Headquarters: DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. South Central Iowa Youth for Christ

    EIN 521300463 · Headquarters: OSKALOOSA, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. South East Asian Ecological Conservation

    EIN 453662728 · Headquarters: Fairfield, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. South English Development Corp

    EIN 421165543 · Headquarters: North English, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. South Hamilton Education Association

    EIN 237402443 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. South Hardin Recreation Area

    EIN 420933663 · Headquarters: Union, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. South OBrien Community School District Foundation

    EIN 820560081 · Headquarters: Paullina, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. South Obrien Education Association

    EIN 274415585 · Headquarters: Paullina, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. South Page Education Association

    EIN 237099767 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. South Shore Outing Club

    EIN 420837889 · Headquarters: Clear Lake, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. South Slope Cooperative Telephone Company

    EIN 420819332 · Headquarters: NORTH LIBERTY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. South Tama Education Association

    EIN 274373052 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. South Winn Golf & Country Club

    EIN 420840187 · Headquarters: CALMAR, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. South Winneshiek Education Assoc

    EIN 421066533 · Headquarters: Calmar, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Southbrook Pond Maintenance

    EIN 334650878 · Headquarters: ELY, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Southdale Impact

    EIN 421444811 · Headquarters: CEDAR FALLS, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Southdale Neighborhood Association

    EIN 384197854 · Headquarters: Waterloo, IA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. Southeast Iowa Builders Association

    EIN 421358683 · Headquarters: BURLINGTON, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Southeast Iowa Master Gardeners

    EIN 264361478 · Headquarters: Mediapolis, IA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  89. Southeast Iowa Mechanical Contracti Industry Development Fund

    EIN 510192069 · Headquarters: URBANDALE, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Southeast Iowa Mennonite Camp Assoc

    EIN 421147628 · Headquarters: WASHINGTON, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Southeast Iowa Regional Board of Realtors

    EIN 426072913 · Headquarters: BURLINGTON, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Southeast Iowa Regional Riverboat Commission

    EIN 421383318 · Headquarters: BURLINGTON, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Southeast Iowa Symphony Association Southeast Iowa Symphony Orchestra

    EIN 426077749 · Headquarters: MOUNT PLEASANT, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Southeast Lakes District

    EIN 900609660 · Headquarters: Fort Madison, IA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  95. Southeast Linn Community Center Corp

    EIN 431406317 · Headquarters: LISBON, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Southeast Polk Education Association

    EIN 237403310 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Southeast Warren Education Assoc

    EIN 421314243 · Headquarters: Indianola, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Southeast Webster Education Asso

    EIN 421296350 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Southeastern Community College Educational Support Association

    EIN 274383154 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Southeastern Community College Higher Education Association

    EIN 421314259 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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