Unknown & Unclassified nonprofits in South Dakota

Unknown & Unclassified nonprofits in South Dakota. Browse 2,816 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. 166 Winner Masonic

    EIN 466040399 · Headquarters: winner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. 253 Rudolph Baukol

    EIN 466014690 · Headquarters: Webster, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. 301 Rodz Inc

    EIN 872357640 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  4. 4-H Clubs & Affiliated 4-H Organizations

    EIN 261911490 · Headquarters: Volga, SD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  5. 4-H Clubs & Affiliated 4-H Organizations

    EIN 760786903 · Headquarters: Nisland, SD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  6. 4-H Dog Club of Brookings County

    EIN 371965772 · Headquarters: Elkton, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  7. 4-H Leaders Association of Jarauld-buffalo Counties

    EIN 372075947 · Headquarters: Wessington Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. 4-H of Brookings County

    EIN 364960560 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. 4-H Shooting Sports Club of Jerauld-buffalo Counties

    EIN 301345085 · Headquarters: Wessington Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  10. 781St Bomb Squadron Association 465Th Bomb Group

    EIN 942991347 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  11. 9Th District Medical Alliance

    EIN 411885469 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  12. A & J Meeting

    EIN 331778270 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. A Coe & Dorothy Frankhauser Trust

    EIN 466098625 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  14. A Pawsitive Cause

    EIN 992786795 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Abate of South Dakota

    EIN 460384002 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Abate of the Black Hills

    EIN 465185239 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  17. Abbott House Foundation Inc

    EIN 460379896 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Aberdee Rural Fire Fighters

    EIN 460321995 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  19. Aberdeen Abate Inc

    EIN 900941657 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  20. Aberdeen Area Arts Council

    EIN 237181353 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Aberdeen Area Association of Realtors

    EIN 460306595 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. Aberdeen Area Chamber of Commerce

    EIN 460103710 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Aberdeen Area Child Protection Team

    EIN 460347890 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Aberdeen Area Community Foundation Inc

    EIN 363323233 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Aberdeen Area Convention and Visitors Bureau Inc

    EIN 460422304 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Aberdeen Area Disc Golf Association

    EIN 372070249 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Aberdeen Area Medical Foundation Inc

    EIN 363586503 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  28. Aberdeen Chapt 178 Women of the Moose

    EIN 460306719 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Aberdeen Community Concert Association

    EIN 900337865 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Aberdeen Cue Club Inc

    EIN 454404834 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  31. Aberdeen Development Corporation

    EIN 466011831 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Aberdeen Family YMCA

    EIN 460255779 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Aberdeen Gun Club Inc

    EIN 460375398 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Aberdeen Home Builders Assoc Inc

    EIN 460460071 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Aberdeen Library Foundation

    EIN 460428183 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  36. Aberdeen Lodge No 590 Loyal Order of Moose

    EIN 460159830 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Acf Black Hills Chapter of Professional Chefs

    EIN 460425539 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  38. Action

    EIN 462294420 · Headquarters: Lennox, SD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  39. Adult Day Center of the Black Hills

    EIN 822789782 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Advance

    EIN 460348804 · Headquarters: Brookings, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Adventure with Santa

    EIN 474106257 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Agc of South Dakota

    EIN 991294972 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Aglow International

    EIN 201025353 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Aglow International

    EIN 201085288 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Aglow International

    EIN 202184082 · Headquarters: Aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Aglow International

    EIN 237396160 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Aglow International

    EIN 260063037 · Headquarters: Hot Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Aglow International

    EIN 264725021 · Headquarters: Fort Thompson, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Aglow International

    EIN 460360380 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Aglow International

    EIN 460381849 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  51. Aglow International

    EIN 460391676 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Aglow International

    EIN 510246970 · Headquarters: Bison, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Aglow International

    EIN 921984561 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Air Force Reserve Officer Training Detachment 780 Cadet Corps

    EIN 460409841 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Air Force Sergeants Association

    EIN 900392103 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Akaska Development Corporation

    EIN 510570277 · Headquarters: AKASKA, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. Akaska Fire Department Inc

    EIN 921851301 · Headquarters: AKASKA, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  58. Alano Society of Aberdeen

    EIN 466014800 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Alano Society of Brookings South Dakota

    EIN 510175538 · Headquarters: Volga, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Alano Society of Rapid City Inc

    EIN 460314250 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Alcester Industrial Park Inc

    EIN 460445787 · Headquarters: ALCESTER, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. Alcester Post 6149 Vfw

    EIN 365136377 · Headquarters: Alcester, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Alcester Senior Citizens Center Inc

    EIN 460342570 · Headquarters: ALCESTER, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Alcester-hudson Pto

    EIN 461287235 · Headquarters: Alcester, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  65. Alexandria Manors Inc

    EIN 460309841 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  66. Aliner Owners Club

    EIN 611636361 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. All Grace Incorporated

    EIN 473583862 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  68. Alliance for Substance Abuse Prevention Inc

    EIN 460359815 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Alliance of Trauma-responsive Occupational Therapists Inc

    EIN 873773394 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. Allied Arts Fund Drive Inc

    EIN 460397573 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  71. Ally Dakota Development Inc

    EIN 460361483 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Alpha Chi Sigma Fraternity Collegiate Chapter

    EIN 237087274 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Alpha Delta Kappa Sorority Inc

    EIN 237017583 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  74. Alpha Delta Kappa Sorority Inc

    EIN 466019646 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Alpha Gamma Rho Alumni Assoc

    EIN 460284739 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Alpha Gamma Rho Fraternity

    EIN 466015985 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. Alpha Gamma Zeta House Corporation

    EIN 363464345 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Alpha Mu Tau Fraternity

    EIN 237058172 · Headquarters: HERMOSA, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. Alpha Omega Alpha Honor Medical Society Sioux Falls

    EIN 942571410 · Headquarters: Sioux falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Alpha XI Delta Building Corporation

    EIN 466013153 · Headquarters: Yankton, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Alternatives to Violence Project Avp Sioux Falls

    EIN 800485503 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Alternattives to Violence Project- Avp Springfield

    EIN 920303039 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  83. Altrusa International Inc

    EIN 466015197 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  84. Altrusa International Inc

    EIN 471080359 · Headquarters: Volga, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  85. Alumni Association of the University of South Dakota

    EIN 466001196 · Headquarters: VERMILLION, SD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  86. Amalgamated Transit Union

    EIN 237119466 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Amercian Legion

    EIN 466006912 · Headquarters: Carpenter, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. America Forward Inc

    EIN 395038550 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. American Association of Healthcare Administrative Management

    EIN 460348536 · Headquarters: Madison, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. American Association of Neuroscience Nurses

    EIN 911862534 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Association of University Women

    EIN 466012249 · Headquarters: Hill City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Association of University Women

    EIN 466014810 · Headquarters: Estelline, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Business Women

    EIN 460357617 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  94. American Coalition for Ethanol

    EIN 450407345 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. American College of Nurse-midwives

    EIN 272398827 · Headquarters: sioux falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. American College of Physicians Sd C

    EIN 460385734 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. American Council of Engineering Companies of Sd Inc

    EIN 467259968 · Headquarters: BROOKINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. American Federation of Government Employees

    EIN 237168572 · Headquarters: Ellsworth AFB, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. American Federation of Government Employees

    EIN 460237526 · Headquarters: HOT SPRINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. American Federation of Government Employees

    EIN 460353443 · Headquarters: Watertown, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

All pages