| SCHUBERT'S HEAVEN'S BEST, LLC | — | DL021148 | 2010-04-01 | Active | DAKOTA DUNES |
| SCIENCE NUTRITION, L.L.C. | — | DL011027 | 2006-03-31 | Active | SIOUX FALLS |
| SD Bitcorn, LLC | — | DL268605 | 2024-02-15 | Active | DAKOTA DUNES |
| SEWER-MATIC, INC. | — | FB012956 | 1989-08-30 | Revoked | SIOUX CITY |
| SHERLOCK HOME INSPECTORS, INC. | — | FB018673 | 1996-02-15 | Revoked | SIOUX CITY |
| SHIV HOSPITALITY, L.L.C. | — | DL135671 | 2017-08-04 | Active | DAKOTA DUNES |
| SILK HIGHWAY GROUP, LLC | — | DL014962 | 2007-10-29 | Inactive | |
| SILVER EAGLE SYSTEMS, INC. | — | FB014895 | 1991-10-24 | Active | DAKOTA DUNES |
| SIOUX CITY INSULATION, INC. | — | FB149214 | 2018-06-05 | Active | NORTH SIOUX CITY |
| SIOUX CITY STATIONERY COMPANY, INC. | — | FB013393 | 1990-02-14 | Inactive | Sioux City |
| SIOUX FALLS PAIN CLINIC, LLC | — | DL012471 | 2006-11-09 | Inactive | |
| SIOUX POINT PROFESSIONAL PARTNERS, LLC | — | DL014601 | 2007-09-05 | Active | DAKOTA DUNES |
| SIOUX POINT ROAD INVESTMENTS, LLC | — | DL015060 | 2007-11-14 | Dissolved | DAKOTA DUNES |
| SIOUX RENEWABLE ENERGY, LLC | — | DL019738 | 2009-09-11 | Inactive | South Sioux City |
| SIOUXLAN COMMUNICATIONS, L.L.C. | — | FL006837 | 2013-04-15 | Active | Sioux City |
| SIOUXLAND ABSTRACT & TITLE CO., L.L.C. | — | DL000918 | 1996-08-09 | Dissolved | |
| SIOUXLAND ANESTHESIOLOGY LTD. | — | DB032911 | 1993-04-09 | Active | DAKOTA DUNES |
| SIOUXLAND CHAMBER FOUNDATION | — | FN010658 | 2000-10-13 | Revoked | SIOUX CITY |
| SIOUXLAND CHAPTER CFMA | — | NS012454 | 2003-12-15 | Active | Sioux Center |
| SIOUXLAND INSULATION, LIMITED | — | FB039197 | 2016-03-16 | Active | Sioux City |
| SIOUXLAND MEDICAL PARK, L.L.C. | — | DL000496 | 1995-07-10 | Dissolved | DAKOTA DUNES |
| SIOUXLAND PROCESSING, INC. | — | FB019174 | 1996-07-31 | Revoked | SIOUX CITY |
| SIOUXLUTION X, INC. | — | DB051978 | 2007-01-24 | Inactive | |
| SMTM AVIATION, LLC | — | FL044178 | 2016-03-10 | Active | DAKOTA DUNES |
| SODRAC PARK INVESTMENTS, LLC | — | DL020795 | 2010-02-16 | Inactive | Dakota Dunes |
| SOLID FABRICATIONS, INC. | — | FB027082 | 2003-03-03 | Inactive | SIOUX CITY |
| SOUTHERN DAKOTA, L.L.C. | — | DL009031 | 2005-04-15 | Inactive | Pace |
| SOUTHWEST ADVENTURES, LLC | — | DL002424 | 1999-08-20 | Dissolved | |
| SPINEXACT, INC. | — | DB043366 | 2000-10-30 | Dissolved | NORTH SIOUX CITY |
| STECK WHOLESALE FOODS, INC. | — | DB047809 | 2004-01-12 | Active | NORTH SIOUX CITY |
| SWEETWATER LEASING COMPANY, L.L.C. | — | DL000418 | 1995-03-30 | Inactive | |
| Sheehan Property, LLC | — | DL127781 | 2016-11-14 | Inactive | Dakota Dunes |
| Sidedump Outlet, LLC | — | DL270688 | 2024-03-14 | Active | Jefferson |
| Siouxland Sod, LLC | — | DL211597 | 2021-10-05 | Active | Sioux City |
| Siouxland Sport & Performance Psychology, LLC | — | DL274283 | 2024-05-03 | Active | Dakota Dunes |
| Soil Solutions, L.L.C. | — | FL210902 | 2021-09-24 | Active | Onawa |
| St. Andrews Enterprises, Inc. | — | DB143087 | 2018-01-25 | Dissolved | Dakota Dunes |
| Stack Investments of Dakota, LLC | — | DL042684 | 2015-03-30 | Dissolved | West Point |
| Steamboat Business Suites, LLC | — | DL149437 | 2018-06-08 | Active | Dakota Dunes |
| Steck Wholesale Foods, LLC | — | DL179368 | 2004-01-12 | Inactive | NORTH SIOUX CITY |
| T&J's Bunkhouse, LLC | — | DL176519 | 2020-01-29 | Active | Timber Lake |
| TALL GREEN LEG, LLC | — | DL025081 | 2011-06-30 | Dissolved | DAKOTA DUNES |
| TAMARACK PROPERTIES II, LLC | — | DL024210 | 2011-03-28 | Active | Pace |
| TAMARACK PROPERTIES, INC. | — | DB055992 | 2011-03-02 | Dissolved | NORTH SIOUX CITY |
| TARPP, P.C. | — | FB033652 | 2009-07-20 | Active | O'Neill |
| TECHNICAL BUSINESS MANAGEMENT, LLC | — | DL044690 | 2015-08-12 | Dissolved | WATERTOWN |
| THE HEALTH CLUB, INC. | — | FB027800 | 2003-10-14 | Active | North Sioux City |
| THE JEFFERSON VOLUNTEER AMBULANCE DEPARTMENT, INC. | — | NS014987 | 2012-11-13 | Active | JEFFERSON |
| THE LIONS CLUB OF NORTH SIOUX CITY, INC. | — | NS012318 | 2003-06-09 | Dissolved | N SIOUX CITY |
| THE MANNA COOKIE COMPANY, LLC | — | DL021921 | 2010-07-12 | Dissolved | SIOUX FALLS |