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
- The Grand Chapter of Sd Oes
EIN 460140864 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- The Greater Sd Eduction and Research Foundation Inc
EIN 460349099 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- The Heimsoth Family Charitable Trust
EIN 261719452 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The History Club
EIN 466012327 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- The John Simmons Family Trust
EIN 466972538 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- The Luke Society Inc
EIN 840563440 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- The South Dakota Society of Professional Land Surveyors Inc
EIN 460413500 · Headquarters: PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- The Summit League
EIN 391417116 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- The Van Beek Family Foundation Van Beek
EIN 421458998 · Headquarters: HUDSON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Third District Medical Society
EIN 465670469 · Headquarters: SIOUX FALLS, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Thrall Mountain Property Assoc
EIN 460403144 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Thrift Shop of Ellsworth
EIN 460348904 · Headquarters: Ellsworth AFB, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Thunder Ridge Rural Water Association
EIN 453185129 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Tieszen Memorial Home
EIN 460213759 · Headquarters: MARION, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Tiger Educational Foundation
EIN 363803804 · Headquarters: Mobridge, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Timber Lake and Area Historical Soc
EIN 460373113 · Headquarters: TIMBER LAKE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Toastmasters International
EIN 010638398 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 237098287 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 237154607 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 364980825 · Headquarters: Box Elder, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 460389260 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 460438083 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 460443055 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 465551929 · Headquarters: Wall, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 466014939 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 466015243 · Headquarters: Mitchell, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 466015321 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 466015358 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 900116286 · Headquarters: Yankton, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 901117773 · Headquarters: Vermillion, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 901139745 · Headquarters: Dakota Dunes, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 901184023 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 901506076 · Headquarters: Watertown, SD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 911784588 · Headquarters: Milbank, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 911826804 · Headquarters: Aurora, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 942926279 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 942926291 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Toastmasters International
EIN 942926435 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toka Waste Kte Healing Hoop
EIN 334830845 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tops Club Inc
EIN 834563774 · Headquarters: Brandon, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tops Club Inc
EIN 881616388 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Toronto Community Club Inc
EIN 237024540 · Headquarters: Astoria, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Tourism Coalition of South Dakota
EIN 460438298 · Headquarters: YANKTON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Town & Country Pals 4- H Club
EIN 262249801 · Headquarters: gettysburg, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Town Players
EIN 460341725 · Headquarters: WATERTOWN, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Townhouse Apartments Inc
EIN 460306023 · Headquarters: ALCESTER, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Translators of Cultures
EIN 832748594 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Trent Cemetery Association
EIN 460277387 · Headquarters: FLANDREAU, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tri-County Water Association Inc
EIN 460337249 · Headquarters: Eagle Butte, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Tri-state Shooters Club Inc
EIN 460414099 · Headquarters: Rosholt, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tridentia Housing & Scholarship
EIN 460412885 · Headquarters: MITCHELL, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Trinity Fellowship International Inc
EIN 920073880 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Trinity Learning Center Inc
EIN 453807369 · Headquarters: HARTFORD, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Trinity Lutheran Cemetery
EIN 460375625 · Headquarters: Meckling, SD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Tripp Co Seniors Inc
EIN 460316511 · Headquarters: Winner, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Tripp County Historical Society Inc
EIN 237098383 · Headquarters: Winner, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tripp County Prospect Show
EIN 843330422 · Headquarters: Hamill, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Tripp Development Company Inc
EIN 460305700 · Headquarters: Tripp, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Trophy Trotters 4-H Club of Lincoln County South Dakota
EIN 861579102 · Headquarters: Lennox, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Trout Unlimited
EIN 911840326 · Headquarters: Harrisburg, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Troy Cemetary Association
EIN 611557939 · Headquarters: Watertown, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Turner County Fair Board Inc
EIN 473784318 · Headquarters: Parker, SD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Twin Cities and Area Senior Citizens
EIN 237224616 · Headquarters: Lead, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Twin Township Cemetery Association
EIN 460342657 · Headquarters: Rosholt, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ty Eschenbaum Foundation
EIN 883784622 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Tyndall Housing & Redevelopment Com
EIN 460345609 · Headquarters: TYNDALL, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ultimate Space Condominium Association Inc
EIN 472618120 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Union Cemetery Association of Brule County
EIN 466016068 · Headquarters: Pukwana, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Union County Electric Cooperative Inc
EIN 460200495 · Headquarters: ELK POINT, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Union County Historical Society
EIN 460409433 · Headquarters: ELK POINT, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Unit 235 of the American Contract Bridge League - District 14
EIN 320241142 · Headquarters: North Sioux City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Cemetery Association
EIN 460368593 · Headquarters: ARLINGTON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Childcare and Preschool Inc
EIN 460312397 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- United Commercial Travelers of America
EIN 460226236 · Headquarters: HURON, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Electrical Radio & Machine Workers of America
EIN 460375507 · Headquarters: Elk Point, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- United Food & Commerical Workers Local 304A
EIN 460198175 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- United Grand Imperial Coun Knights of Red Cross of Constantine
EIN 237617515 · Headquarters: ABERDEEN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Grand Imperial Coun Knights of Red Cross of Constantine
EIN 237617516 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Senior Housing Inc
EIN 237235071 · Headquarters: ABERDEEN, SD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- United States Bowling Congress
EIN 204881999 · Headquarters: Rapid City, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- United States Masters Swimming Inc
EIN 311131750 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Steelworkers
EIN 237111515 · Headquarters: RAPID CITY, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- United Steelworkers
EIN 237292694 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Steelworkers
EIN 466014801 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- United Way of Northeastern South Dakota Inc
EIN 237086355 · Headquarters: Aberdeen, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- United Way of the Black Hills
EIN 460259754 · Headquarters: RAPID CITY, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- United Way of Vermillion
EIN 363535078 · Headquarters: Vermillion, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Unity Ethiopian Association
EIN 471932182 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Unity Lutheran Cemetery Inc
EIN 460338108 · Headquarters: FREEMAN, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Unmask the Truth
EIN 872160278 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Unmasked Revealing the Superhero in All of Us
EIN 823825567 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- USA Swimming Inc
EIN 311012962 · Headquarters: Mitchell, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Valkyrie Pylon Foundation
EIN 872558832 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- Valley Springs Development Corporat Ion
EIN 900425298 · Headquarters: Valley Springs, SD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Valley View Country Club
EIN 460230048 · Headquarters: SISSETON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Valley View Road District
EIN 371517862 · Headquarters: Rapid City, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Veblen Senior Citizens Association Inc
EIN 460360829 · Headquarters: Veblen, SD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Verendrye Museum Inc
EIN 460314846 · Headquarters: FORT PIERRE, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Vermillion Area Chamber of Commerce and Development Company
EIN 460284795 · Headquarters: VERMILLION, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990
- Vermillion Area Right to Life
EIN 834678153 · Headquarters: Vermillion, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N