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. South Dakota Pork Producers Council

    EIN 460309257 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. South Dakota Premier Softball

    EIN 831537808 · Headquarters: WENTWORTH, SD, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  3. South Dakota Professional Photographers Assoc

    EIN 460414516 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. South Dakota Public Health Association

    EIN 364810785 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. South Dakota Pulse Growers Inc

    EIN 460425493 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. South Dakota Quarter Horse Assoc

    EIN 460374189 · Headquarters: Luverne, MN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. South Dakota Racquetball Association

    EIN 263075165 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  8. South Dakota Ready Mix Concrete Association

    EIN 237080888 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. South Dakota Retailers Association

    EIN 460181800 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. South Dakota Retired School Personnel

    EIN 460379362 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. South Dakota Rifle Series

    EIN 332435823 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. South Dakota Right to Life Committee Educational Fund

    EIN 460367005 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. South Dakota Rodeo Association

    EIN 460382897 · Headquarters: Beresford, South Dakota, United States · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. South Dakota Rural Electric Association

    EIN 460231254 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. South Dakota Rural Electric Line Superintendents Association

    EIN 460348116 · Headquarters: Gregory, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. South Dakota Safety Council Inc

    EIN 460224601 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. South Dakota Section Society for Range Management

    EIN 237448551 · Headquarters: MITCHELL, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. South Dakota Short Term Rental Association

    EIN 931913861 · Headquarters: Britton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. South Dakota Sigma Chapter House Association

    EIN 510175932 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. South Dakota Snowmobile Association

    EIN 460339924 · Headquarters: Gary, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. South Dakota Society for Respiratory Care

    EIN 460429966 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. South Dakota Society of Anestesiolo

    EIN 460448728 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. South Dakota Society of Fire Service Instructors

    EIN 460428174 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. South Dakota Society of Health-system Pharmacists

    EIN 460339056 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. South Dakota Society of Orthodontists

    EIN 460349616 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. South Dakota Solid Waste Management

    EIN 460418541 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. South Dakota Soybean Association

    EIN 460373309 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. South Dakota Speech Language & Hearing Association

    EIN 460344604 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. South Dakota Staff Organization

    EIN 521627593 · Headquarters: PIERRE, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. South Dakota State Employees Organization

    EIN 460320458 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. South Dakota State Federation of Labor

    EIN 460191753 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. South Dakota State Medical Association

    EIN 460213945 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. South Dakota State Medical Association Foundation

    EIN 466012680 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. South Dakota State Poetry Society

    EIN 237420414 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. South Dakota State University Student Chapter

    EIN 521410995 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. South Dakota States Attorneys Assoc

    EIN 460385805 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. South Dakota Stockgrowers Assoc

    EIN 460228590 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. South Dakota Technology Education Association

    EIN 384331339 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. South Dakota Telecommunications Association

    EIN 460319642 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. South Dakota Theta Alumni Associati On

    EIN 395030891 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. South Dakota Theta House Corporation

    EIN 460342550 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. South Dakota Thoracic Society

    EIN 821404679 · Headquarters: NEW YORK, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. South Dakota Trial Lawyers Associat

    EIN 460379430 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. South Dakota Trucking Association

    EIN 460106900 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. South Dakota Urban Indian Health Inc

    EIN 460348571 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  46. South Dakota Used Car Dealers Association Inc

    EIN 460443298 · Headquarters: TEA, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. South Dakota Veterans Cemeteries Support Council

    EIN 460404050 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. South Dakota Veterinary Medical Association

    EIN 460357085 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. South Dakota Voices for Justice

    EIN 824080637 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. South Dakota Voices for Peace

    EIN 823171574 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. South Dakota Voters First

    EIN 921140080 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. South Dakota Well Drillers

    EIN 466017107 · Headquarters: OACOMA, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. South Dakota Wheat Growers Association

    EIN 460313309 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  54. South Dakota Wildland Fire Employee Association

    EIN 464588426 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. South Dakota Wit Travelers Club

    EIN 300549271 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  56. South Dakota Woodcarvers Inc

    EIN 412226269 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. South Dakota Woodworkers Guild

    EIN 261529083 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  58. South Dakota Youth Soccer Association Inc

    EIN 237183054 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. South Dakota's Missouri River Tourism

    EIN 460282809 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. South Dakotans Against the Deceptive Rx Ballot Issue

    EIN 823403467 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  61. South Dakotans Decide Healthcare

    EIN 862041240 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  62. South Dakotans for a Secure Constitution

    EIN 393698410 · Headquarters: Hartford, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. South Dakotans for Fair Elections

    EIN 880583676 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  64. South Dakotans for Healthy Families

    EIN 882383413 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. South Dakotans for Nebraska

    EIN 272298855 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  66. South Dallas Business & Professional Women's Club Inc

    EIN 751978761 · Headquarters: Dallas, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. South Darby Sprinkler Irrigation Company Inc

    EIN 820300092 · Headquarters: DRIGGS, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. South Dartmouth Cemetery Association

    EIN 042129039 · Headquarters: SOUTH DARTMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  69. South Davidson Fire Department Inc

    EIN 237339250 · Headquarters: DENTON, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. South Dearborn Pee Wee Football Corporation

    EIN 237046232 · Headquarters: Aurora, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. South Dearborn Schools Endowment Corp

    EIN 352022778 · Headquarters: AURORA, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. South Deerfield Cemetery Association

    EIN 041851995 · Headquarters: SOUTH DEERFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  73. South Deerfield Womens Club

    EIN 043060883 · Headquarters: South Deerfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. South Dekalb Improvement Alliance

    EIN 464079076 · Headquarters: Lithonia, GA, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  75. South Delta Planning & Development District

    EIN 640466158 · Headquarters: GREENVILLE, MS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. South Delta Retriever Club

    EIN 932962597 · Headquarters: VICKSBURG, MS, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. South Dennis Free Public Library Association

    EIN 237121172 · Headquarters: SOUTH DENNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. South Denver Kiwanis Foundation

    EIN 742356006 · Headquarters: Englewood, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. South Desoto Water System Inc

    EIN 721080836 · Headquarters: MANSFIELD, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. South Despain Ditch Company

    EIN 870495810 · Headquarters: SANDY, UT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. South Dixie Homemakers

    EIN 611351048 · Headquarters: Louisville, KY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  82. South East Asian Ecological Conservation

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

  83. South East Caldwell County Volunteer Fire Department

    EIN 742309513 · Headquarters: Luling, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. South East Chicago Commission

    EIN 362226282 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. South East Connecticut Community Center of the Blind Inc

    EIN 060945527 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. South East Florida Apartment Association Inc

    EIN 650036888 · Headquarters: Boca Raton, FL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. South East Florida It Architects Inc

    EIN 274461963 · Headquarters: BOCA RATON, FL, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  88. South East Idaho Practical Shooters Inc

    EIN 820425011 · Headquarters: Idaho Falls, ID, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. South East Livingston Co Ambulance Serv

    EIN 370963981 · Headquarters: FAIRBURY, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. South East Metro Sharks Swim Club

    EIN 411359643 · Headquarters: Woodbury, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. South East Michigan Austin Healey Club

    EIN 383394234 · Headquarters: Farmington Hills, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. South East Oak Park Community Organization

    EIN 204387195 · Headquarters: oak park, IL, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  93. South East South Dakota Atv Association

    EIN 204689051 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  94. South East Suburban Soccer League

    EIN 611843239 · Headquarters: South Holland, IL, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  95. South East Texas Economic Development District

    EIN 760405804 · Headquarters: BEAUMONT, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. South East Youth Organization

    EIN 953680955 · Headquarters: ANAHEIM, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  97. South Eastern Alpha Housing and Healthcare Inc

    EIN 251701698 · Headquarters: New Castle, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  98. South Eastern Chapter Aaca

    EIN 562279381 · Headquarters: Goldsboro, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. South Eastern Economic Development Company of Pennsylvania

    EIN 222490679 · Headquarters: EXTON, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. South Eastern Economic Development Corporation

    EIN 042772952 · Headquarters: TAUNTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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