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. Ancient Free & Accepted Mason of 7

    EIN 237264676 · Headquarters: Deadwood, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Ancient Free & Accepted Masons 124

    EIN 237266852 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Ancient Free & Accepted Masons of S

    EIN 237266080 · Headquarters: VERMILLION, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Ancient Free & Accepted Masons of Sd 24 Brookings Lodge Masonic Temp

    EIN 460105290 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Ancient Free & Accepted Masons of Sd 25 Rapid City Lodge

    EIN 460280147 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Ancient Free & Accepted Masons of Sd 62 Lily Lodge

    EIN 237299423 · Headquarters: Blunt, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Ancient Free & Accepted Masons of South Dakota

    EIN 237264666 · Headquarters: Wessington Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Ancient Free & Accepted Masons of South Dakota

    EIN 237264906 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Ancient Free & Accepted Masons of South Dakota

    EIN 237268183 · Headquarters: Bridgewater, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Ancient Free & Accepted Masons of South Dakota

    EIN 264528641 · Headquarters: Hermosa, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Ancient Free & Accepted Masons of South Dakota

    EIN 460104012 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Ancient Free & Accepted Masons of South Dakota 107 Wessington

    EIN 237280500 · Headquarters: Wessington, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Ancient Free & Accepted Masons of South Dakota 112 Tin City Lodge

    EIN 460317780 · Headquarters: Hill City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Ancient Free & Accepted Masons of South Dakota 120 Joppa Lodge

    EIN 237264252 · Headquarters: HURLEY, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Ancient Free & Accepted Masons of South Dakota 13 Concord Lodge

    EIN 460355835 · Headquarters: WATERTOWN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Ancient Free & Accepted Masons of South Dakota 130 Unity Lodge

    EIN 460105294 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Ancient Free & Accepted Masons of South Dakota 136 Hartford Lodge

    EIN 237266359 · Headquarters: Hartford, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  18. Ancient Free & Accepted Masons of South Dakota 141 Worthing

    EIN 237276595 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Ancient Free & Accepted Masons of South Dakota 161 Mount View

    EIN 237641519 · Headquarters: EDGEMONT, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Ancient Free & Accepted Masons of South Dakota 210 Crescent

    EIN 237264645 · Headquarters: Wall, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Ancient Free & Accepted Masons of South Dakota 214 Pasque Lodge

    EIN 237264727 · Headquarters: PRAIRIE CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Ancient Free & Accepted Masons of South Dakota 220 Mt Rushmore Lodge

    EIN 460281881 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Ancient Free & Accepted Masons of South Dakota 26 Huron

    EIN 460105291 · Headquarters: Huron, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Ancient Free & Accepted Masons of South Dakota 31 Resurgam

    EIN 237330686 · Headquarters: MITCHELL, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Ancient Free & Accepted Masons of South Dakota 34 Redfield

    EIN 237264728 · Headquarters: Redfield, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Ancient Free & Accepted Masons of South Dakota 4 Silver Star

    EIN 237641411 · Headquarters: CANTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Ancient Free & Accepted Masons of South Dakota 47 Olive Branch

    EIN 237264892 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Ancient Free & Accepted Masons of South Dakota 5 Minnehaha Lodge

    EIN 237267424 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Ancient Free & Accepted Masons of South Dakota 54 Coteau

    EIN 237641444 · Headquarters: Webster, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  30. Ancient Free & Accepted Masons of South Dakota 83 Ionic

    EIN 237276591 · Headquarters: Gettysburg, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Ancient Free & Accepted Masons of South Dakota 93 Doric

    EIN 237268678 · Headquarters: Platte, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. Ancient Free & Accepted Masons of South Dakota 97 Arcania

    EIN 237264643 · Headquarters: Armour, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Ancient Free & Accepted Masons of South Dakota Pioneer Lodge 219

    EIN 237268686 · Headquarters: MARTIN, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  34. Ancient Free & Accepted Masons of Sunrise 211

    EIN 460195895 · Headquarters: aberdeen, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. Ape Topa 4-H Club of South Dakota

    EIN 933961230 · Headquarters: Sisseton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Applied Client Network South Dakota

    EIN 455454447 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  37. Appraisal Institute

    EIN 830285028 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Ar Wood Educational Trust First Bank and Trust

    EIN 416023357 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. Arabian Horse Society of South Dakota Inc

    EIN 460386067 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Arc Oahe Chapter

    EIN 460354386 · Headquarters: FORT PIERRE, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Archery Association Europe

    EIN 820602004 · Headquarters: YANKTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Areawide Business Council Incorporated

    EIN 460375317 · Headquarters: Yankton, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. Arise Church

    EIN 900277392 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-T

  44. Armour Senior Citizen Center Incorporated

    EIN 460346563 · Headquarters: Armour, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Armour South Dakota Industrial Development Co Inc

    EIN 460437732 · Headquarters: Armour, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Arnold Air Society-silver Wings

    EIN 466015470 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Arrowhead Country Club

    EIN 460241901 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Aspire Foundation Inc

    EIN 460403797 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Assn of Hutterian Brethren Churches

    EIN 460369923 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. Associated General Contractors of South Dakota Inc

    EIN 460213237 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Associated General Contractors of South Dakota Inc - Building Chapter

    EIN 460106838 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Associated School Boards of South Dakota Inc

    EIN 460242298 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Association of Contingency Planners

    EIN 200583469 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  54. Association of Notre Dame Clubs Inc - Black Hills

    EIN 311344541 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Association of Notre Dame Clubs Inc - South Dakota

    EIN 311075491 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Association of Sd Weed & Pest Boards

    EIN 460408573 · Headquarters: Wolsey, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. Aurora-brule Rural Water System

    EIN 460411524 · Headquarters: KIMBALL, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Autism Society of America

    EIN 522190755 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Autumn Leaves Club Inc

    EIN 460341620 · Headquarters: Faulkton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Avb Foundation Inc

    EIN 393656759 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Avon Community Development Inc

    EIN 460356449 · Headquarters: AVON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  62. Avon Dante Pink Ladies Dart League

    EIN 470982078 · Headquarters: Wagner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Avon Kids Club

    EIN 460700040 · Headquarters: Avon, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  64. Axiom Foundation

    EIN 866502523 · Headquarters: Turton, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  65. B-town Baggers

    EIN 880777699 · Headquarters: Britton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Back to Basics Nutrition Education Association

    EIN 470976425 · Headquarters: Spearfish, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  67. Backroom Production Inc

    EIN 460367778 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Bad River Senior Citizens Center

    EIN 237297518 · Headquarters: Philip, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Badlands Natural History Assoc

    EIN 460278822 · Headquarters: INTERIOR, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Ballroom Swishers Dance Club

    EIN 460444520 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Bandit Ball Little League

    EIN 521234691 · Headquarters: BOX ELDER, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  72. Barak Ata Adoni-christ for All Nations

    EIN 263668727 · Headquarters: Pine Ridge, SD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  73. Barely Beyond Pink Red Hatters

    EIN 465753262 · Headquarters: SPEARFISH, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  74. Barron Family Charitable Foundation

    EIN 042981078 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  75. Battleship South Dakota Memorial Foundation

    EIN 466015380 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Bdm Rural Water System Inc

    EIN 363309890 · Headquarters: BRITTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. Beacon Hill Rifle and Pistol Club

    EIN 460347638 · Headquarters: VOLGA, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. Beadle Bops 4H Club

    EIN 934570897 · Headquarters: Huron, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Beadle County 4-H Youth Council of South Dakota

    EIN 934091982 · Headquarters: Huron, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Beadle County Pearl Creek Boosters 4-H Club of South Dakota

    EIN 902117887 · Headquarters: Cavour, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Beadle County Sportsman Club Inc

    EIN 460237443 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Bear Butte Valley 4H of South Dakota

    EIN 852172708 · Headquarters: Sturgis, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Behavior Management Systems Inc Dba West River Mental Health

    EIN 460251185 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Bellator Titans Low Country Foundation

    EIN 333978177 · Headquarters: Elk Point, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Belle Fourche Arts Council

    EIN 460377117 · Headquarters: Belle Fourche, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Belle Fourche Chamber of Commerce

    EIN 460121696 · Headquarters: Belle Fourche, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Belle Fourche Country Club

    EIN 460271935 · Headquarters: Belle Fourche, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Belle Fourche Lodge No 859 Loyal Order of Moose

    EIN 460334844 · Headquarters: Belle Fourche, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Belle Fourche Senior Citizens Center

    EIN 460354544 · Headquarters: Belle Fourche, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  90. Benedictine Health System

    EIN 460395441 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Benevolent & Protective Order of Elks

    EIN 460257432 · Headquarters: WINNER, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Benevolent & Protective Order of Elks Hot Springs Lodge No 1751

    EIN 460219649 · Headquarters: HOT SPRINGS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Benevolent & Protective Order of Elks of the USA

    EIN 460110155 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Benevolent & Protective Order of Elks of the USA

    EIN 460213059 · Headquarters: BROOKINGS, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Benevolent & Protective Order of Elks Watertown Lodge 838

    EIN 460203420 · Headquarters: WATERTOWN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Benevolent & Protective Order of the Elks

    EIN 460110160 · Headquarters: HURON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Benevolent Patriotic Order of Does of the United States of America

    EIN 237641689 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Benevolent Patriotic Order of Does of the United States of America

    EIN 363379255 · Headquarters: Winner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Bennett County Retired Teachers Association

    EIN 273188414 · Headquarters: Martin, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  100. Beresford Community Ambulance

    EIN 460238911 · Headquarters: BERESFORD, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

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