| TWO TONE CATTLE CO. | — | DB050645 | 2006-01-27 | Active | SPEARFISH |
| Two Tone Timber & Land LLC | — | DL332739 | 2026-07-03 | Active | Belle Fourche |
| Two Top Cattle Company, LLC | — | DL264011 | 2023-12-08 | Active | Ludlow |
| Two Top Creations, LLC | — | DL270318 | 2024-03-08 | Active | Ludlow |
| Two Top Land & Livestock, LLC | — | DL041062 | 2014-11-17 | Active | VALE |
| TWO TOP RANCH, LLC | — | DL041013 | 2014-11-06 | Dissolved | STURGIS |
| Two Tour Limited Co. | — | DL250657 | 2023-05-12 | Active | Box Elder |
| TWO Tru, LLC | — | DL198849 | 2021-03-17 | Dissolved | Sioux Falls |
| TWO TSP., INC. | — | DB050834 | 2006-03-13 | Dissolved | SPEARFISH |
| Two Utes LLC | — | DL200260 | 2021-04-06 | Active | Sturgis |
| TWO WAY SERVICE INC. | — | DB035411 | 1995-02-13 | Inactive | — |
| Two Way Solutions, Inc. | — | DB013111 | 1975-09-24 | Active | SIOUX FALLS |
| TWO WAY TRANSPORTATION LLC | — | DL332359 | 2026-06-29 | Active | HARRISBURG |
| Two Way Yo, LLC | — | DL287026 | 2024-11-13 | Active | Rapid City |
| Two Ways To Design LLC | — | DL293393 | 2025-02-16 | Active | Sioux Falls |
| TWO WHEEL CATERING LLC | — | DL271162 | 2024-03-20 | Dissolved | STURGIS |
| TWO WHEELED SUBS, INC. | — | DB036250 | 1995-09-15 | Inactive | — |
| TWO WHEELER DEALER, LLC | — | DL012901 | 2007-01-08 | Dissolved | SPEARFISH |
| Two Wheels of Freedom LLC | — | DL255248 | 2023-07-24 | Dissolved | Sioux Falls |
| Two Wheels, LLC | — | DL134882 | 2017-07-10 | Dissolved | Vermillion |
| Two Whistlers, LLC | — | DL048482 | 2016-05-13 | Active | Asheville |
| Two Wiener Dogs, LLC | — | DL186042 | 2020-08-13 | Active | Sioux Falls |
| Two Wieners, LLC | — | DL186041 | 2020-08-13 | Dissolved | Sioux Falls |
| TWO WILLOW CREEK, L.L.C. | — | DL136943 | 2017-09-12 | Inactive | Brookings |
| Two Wings, LLC | — | DL049950 | 2016-09-14 | Active | FT PIERRE |
| Two Wolf Aviation, LLC | — | DL224557 | 2022-04-08 | Dissolved | Custer |
| TWO WOLFE, LLC | — | DL015505 | 2008-01-08 | Dissolved | SISSETON |
| Two Wolves LLC | — | DL201267 | 2021-04-20 | Dissolved | Brookings |
| Two Wolves, LLC | — | DL263599 | 2023-12-03 | Active | Sioux Falls |
| Two Words Publishing, LLC | — | DL150214 | 2018-06-25 | Active | RAPID CITY |
| TWO WORLDS ONE FAMILY LLC | — | DL223778 | 2022-03-29 | Dissolved | Wagner |
| TWO YEARS LLC | — | DL323772 | 2026-03-19 | Active | VERMILLION |
| Two Young Bucks, LLC | — | DL041143 | 2014-11-24 | Active | SIOUX FALLS |
| TWO'S COLD, LLC | — | DL033076 | 2013-07-10 | Active | SIOUX FALLS |
| Two, LLC | — | DL136722 | 2017-09-05 | Dissolved | Los Angeles |
| TWO-BIT, L.L.C. | — | DL005140 | 2002-10-15 | Active | SIOUX FALLS |
| Two-Eleven Distribution L.L.C. | — | FL281607 | 2024-08-22 | Revoked | RENO |
| TWO-EYED DICK, LLC | — | DL040980 | 2014-11-04 | Dissolved | GREGORY |
| TWO-RIVERS REALTY, L.L.C. | — | DL002762 | 2000-01-31 | Inactive | — |
| TWO-SIXTY CORPORATION | — | FB006258 | 1978-05-22 | Inactive | NEW YORK |
| Two54 Creative LLC | — | DL260578 | 2023-10-12 | Active | Sioux Falls |
| Twobadd Inc. | — | DB206391 | 2021-07-13 | Active | Sioux Falls |
| TWOBROS INC. | — | DB040302 | 1998-07-16 | Active | WINNER |
| TwoBrownDogs, LLC | — | DL262772 | 2023-11-17 | Active | Sioux Falls |
| TWOCORP. | — | DB040741 | 1998-11-30 | Inactive | — |
| TwoHearted, LLC | — | DL049065 | 2016-06-28 | Active | WATERTOWN |
| TWOKOTA OIL & GAS, INC. | — | FB012310 | 1988-09-12 | Inactive | WILLISTON |
| Twomagnets Inc. | — | FB226936 | 2022-05-12 | Inactive | WALNUT |
| TWOMAGNETS LLC | — | FL289190 | 2024-12-17 | Active | COVINA |
| TwoNine Tax Prep, LLC | — | DL235329 | 2022-09-23 | Active | Milbank |
| TWOSAN, LLC | — | DL191707 | 2020-11-23 | Active | WEBSTER |
| Twotrees Acquisition, LLC | — | DL260385 | 2023-10-10 | Active | WATERTOWN |
| TWP, INC. | — | DB036364 | 1995-10-26 | Dissolved | PIEDMONT |
| TWR Properties LLC | — | DL188743 | 2020-10-02 | Active | Spearfish |
| TWR, LLC | — | DL033126 | 2013-07-15 | Dissolved | RAPID CITY |
| TWS 100 CORP. | — | FB011696 | 1987-09-18 | Inactive | NEW YORK, |
| TWS FACILITY SERVICES, INC. | — | FB181992 | 2020-05-22 | Active | Murrieta |
| TWS, INC. | — | DB032035 | 1992-08-11 | Inactive | — |
| TWS. Incorporated | — | DB171163 | 2020-01-01 | Active | Sioux Falls |
| TWT EQUIPMENT, LLC | — | DL182124 | 2020-05-27 | Active | Aurora |
| TWT Ventures, Inc. | — | FB037736 | 2014-04-23 | Revoked | Rapid City |
| TWT, LLC | — | FL176049 | 2020-01-20 | Active | TEA |
| TWT, LLC | — | FL006667 | 2013-01-07 | Revoked | OTTUMWA |
| TWTMF Business Trust | — | DT224515 | 2022-04-08 | Active | SIOUX FALLS |
| TWYLA & COMPANY, INC. | — | DB056792 | 2012-04-03 | Dissolved | WEBSTER |
| TX Land 2025 LLC | — | DL313204 | 2025-11-07 | Active | Mitchell |
| TX Outfit, LLC | — | DL138058 | 2017-10-05 | Active | NEWELL |
| TX Ranch, LLC | — | DL275714 | 2024-05-24 | Active | NEWELL |
| TX2 Enterprise llc | — | DL272800 | 2024-04-14 | Dissolved | Stockton |
| Tx2, LLC | — | DL308173 | 2025-08-29 | Active | Brookings |
| Tx2, LLC | — | DL216078 | 2021-12-09 | Dissolved | Brandon |
| TXCO RESOURCES INC. | — | FB022454 | 1999-04-20 | Revoked | SAN ANTONIO |
| TXEN PARTNERS, LLC | — | FL042219 | 2013-11-12 | Active | Houston |
| TXLL, LLC | — | DL016215 | 2008-04-15 | Inactive | AUSTIN |
| TXNET, INC. D/B/A TXNET OF SOUTH DAKOTA, INC. | — | FB027137 | 2003-03-24 | Revoked | PEARL RIVER |
| TXO PRODUCTION CORP. | — | FB007823 | 1981-07-07 | Inactive | DALLAS |
| TxTSportsCards LLC | — | DL281307 | 2024-08-19 | Inactive | Hurley |
| TXU ENERGY SERVICES COMPANY | — | FB024508 | 2000-11-06 | Inactive | DALLAS |
| TXU ENERGY SOLUTIONS COMPANY LIMITED PARTNERSHIP | — | FP000460 | 2001-12-14 | Inactive | DALLAS |
| TXU ENERGY SOLUTIONS MANAGEMENT COMPANY LLC | — | FL001134 | 2001-12-14 | Revoked | DALLAS |
| TXU ENERGY TRADING COMPANY | — | FB023055 | 1999-10-15 | Inactive | DALLAS |
| TXU PORTFOLIO MANAGEMENT COMPANY LIMITED PARTNERSHIP | — | FP000459 | 2001-12-14 | Inactive | DALLAS |
| TXU PORTFOLIO OPTIMIZATION COMPANY LLC | — | FL001133 | 2001-12-14 | Inactive | DALLAS |
| TXU SEM COMPANY | — | FB022360 | 1999-03-18 | Inactive | DALLAS |
| Ty Dye Compliance, LLC | — | DL221337 | 2022-02-23 | Dissolved | Silverton |
| Ty Eschenbaum Foundation | — | NS232639 | 2022-08-15 | Active | ARLINGTON |
| TY JOYOUNG INC | — | DB281505 | 2024-08-21 | Active | Watertown |
| TY Racing Motorsports LLC | — | DL169452 | 2019-08-28 | Dissolved | Chamberlain |
| Ty Roofing & Exteriors LLC | — | DL277915 | 2024-06-29 | Active | Box Elder |
| Ty Supply Company LLC | — | DL223859 | 2022-03-30 | Active | Sioux Falls |
| Ty Trainor Real Estate LLC | — | DL333577 | 2026-07-14 | Active | Rapid City |
| Ty Tuff Challenge, LLC | — | DL164075 | 2019-05-02 | Inactive | Buffalo |
| TY TUFF, LLC | — | DL006879 | 2004-01-29 | Active | BUFFALO |
| Ty's Body Shop LLC | — | DL267271 | 2024-01-27 | Active | Harrisburg |
| TY'S BUILDING SERVICE, INC. | — | DB039327 | 1997-12-11 | Dissolved | VERMILLION |
| TYA AIRPLANE COMPANY, L.L.C. | — | DL005069 | 2002-09-18 | Dissolved | — |
| TYBRIN CORPORATION | — | FB035305 | 2011-07-28 | Inactive | FORT WALTON BEACH |
| TYBURN CROWN ENTERPRISES, L.L.C. | — | DL011088 | 2006-04-10 | Inactive | — |
| Tyche Holdings, LLC | — | DL291497 | 2025-01-21 | Inactive | Rapid City |
| Tyche LLC | — | DL163861 | 2019-04-29 | Dissolved | Camarillo |
| Tyche, LLC | — | DL308420 | 2025-09-03 | Active | Rapid City |
| TYCO ADHESIVES GP HOLDING, INC. | — | FB023139 | 1999-11-03 | Revoked | MANSFIELD |
| TYCO ELECTRONICS INSTALLATION SERVICES, INC. | — | FB025328 | 2001-07-12 | Revoked | MESQUITE |
| TYCO FIRE PRODUCTS LIMITED PARTNERSHIP | — | FP000638 | 2006-03-07 | Active | LANSDALE |
| TYCO PLASTICS LIMITED PARTNERSHIP | — | FP000371 | 1999-03-11 | Inactive | NORTH BERGEN |
| Tyco Properties LLC | — | DL141197 | 2017-12-18 | Active | Box Elder |
| TYCOASA, LLC | — | DL135510 | 2017-07-31 | Active | VALLEY SPRINGS |
| Tycon, Inc. | — | DB060459 | 2015-11-10 | Active | Box Elder |
| TYCOON ARMOR LLC | — | DL186110 | 2020-08-16 | Dissolved | Sioux Falls |
| TYCP3, INC. | — | DB050165 | 2005-09-22 | Dissolved | — |
| Tycz Electric, LLC | — | DL233523 | 2022-08-28 | Active | Sturgis |
| Tycz Strip Tilling and Custom Work, LLC | — | DL044523 | 2015-07-29 | Active | TYNDALL |
| Tye Van Horn LLC | — | DL044128 | 2015-06-25 | Dissolved | SUNDANCE |
| TYF, INC. | — | DB030958 | 1991-09-18 | Inactive | — |
| TYG Construction LLC | — | DL182717 | 2020-06-08 | Dissolved | Sturgis |
| Tygus Farmland, LLC | — | DL189654 | 2020-10-20 | Active | Sioux Falls |
| Tygus Partners, LLC | — | DL043120 | 2015-04-29 | Inactive | SIOUX FALLS |
| Tykes n Hounds, Inc. | — | DB216997 | 2021-12-22 | Active | Sioux Falls |
| Tyko Medical Services, Inc. | — | DB171960 | 2019-10-21 | Active | Waubay |
| TYLAINSON, LLC | — | FL227628 | 2022-05-24 | Active | JOHNSTON |
| Tyle 2 LLC | — | DL257230 | 2023-08-23 | Dissolved | Aberdeen |
| Tyle, LLC | — | DL220475 | 2022-02-11 | Dissolved | Aberdeen |
| Tylectric, LLC | — | DL255139 | 2023-07-21 | Active | Wasta |
| Tyler A. Ptacek M.D., P.C. | — | DB184697 | 2020-07-17 | Active | Rapid City |
| Tyler and Company, LLC | — | DL303800 | 2025-07-02 | Active | Sioux Falls |
| Tyler Brewery, LLC | — | DL176954 | 2020-02-06 | Dissolved | Culver City |
| TYLER BUILDINGS, L.L.C. | — | DL014127 | 2007-06-22 | Inactive | SIOUX FALLS |
| Tyler Burlage Auctioneer, Inc. | — | DB060465 | 2015-11-12 | Active | Brookings |
| Tyler Carlson Trucking, LLC | — | DL153561 | 2018-09-07 | Active | MOBRIDGE |
| TYLER ENTERPRISES LLC | — | DL011593 | 2006-06-22 | Active | LEONARDTOWN |
| TYLER EVANS, INC. | — | DB057515 | 2013-01-28 | Dissolved | SIOUX FALLS |
| TYLER FARMS, LLC | — | DL031713 | 2013-03-19 | Active | Mitchell |
| TYLER FINANCIAL MANAGEMENT, INC. | — | DB030478 | 1991-03-29 | Inactive | — |
| Tyler Global Solutions, LLC | — | DL155901 | 2018-11-02 | Active | Wentworth |
| Tyler Goff Group, LLC | — | DL023650 | 2011-01-31 | Active | SIOUX FALLS |
| Tyler Hanson Guide Service LLC | — | DL179206 | 2020-03-25 | Active | BALTIC |
| TYLER HOSPITALITIES, INC. | — | DB044539 | 2001-09-17 | Dissolved | BRITTON |
| TYLER ICE, INC. | — | DB048910 | 2004-11-17 | Dissolved | — |
| TYLER INSURANCE GROUP LLC | — | FL325762 | 2026-04-10 | Active | LAS VEGAS |
| Tyler Jay LLC | — | DL249403 | 2023-04-26 | Active | RAPID CITY |
| Tyler Jay, LLC | — | DL188762 | 2020-10-04 | Dissolved | Rapid City |
| TYLER K, INC. | — | FB021803 | 1998-09-21 | Inactive | DALLAS |
| Tyler Kelsheimer Construction, LLC | — | DL323825 | 2026-03-19 | Active | Beresford |
| TYLER KNUE HOMES, INC. | — | DB041355 | 1999-04-29 | Dissolved | RAPID CITY |
| TYLER LAND CO., INC. | — | DB013644 | 1976-06-24 | Inactive | HENDRICKS |
| Tyler Land Management, LLC | — | DL156577 | 2018-11-19 | Active | Wentworth |
| Tyler Landis Trucking LLC | — | DL259013 | 2023-09-19 | Active | WARNER |
| Tyler Landis Trucking LLC | — | DL256482 | 2023-08-14 | Inactive | Ipswich |
| TYLER LEE CONSTRUCTION, LLC | — | DL133241 | 2017-05-08 | Active | Roslyn |
| TYLER LUMBER COMPANY | — | FB006059 | 1977-09-30 | Revoked | TYLER |
| Tyler Luxury Travel LLC | — | DL323788 | 2026-03-20 | Active | Watertown |
| Tyler McKenzie Inc. | — | DB158582 | 2019-01-08 | Active | CHICAGO |
| Tyler Nelson & Son's Yard Services LLC | — | DL254604 | 2023-07-13 | Dissolved | Platte |
| TYLER OFFICE ENTERPRISES, LLC | — | DL026246 | 2011-11-15 | Inactive | BIG STONE CITY |
| TYLER RANCH, INC. | — | DF020016 | 1980-09-15 | Inactive | — |
| Tyler Retirement, L.L.C. | — | DL149793 | 2018-06-18 | Active | Aberdeen |
| TYLER TECHNOLOGIES, INC. | — | FB029415 | 2005-03-01 | Active | Plano |
| Tyler Vander Zee Construction LLC | — | DL261792 | 2023-11-01 | Active | Sioux Falls |
| Tyler Volesky Law, Prof. L.L.C. | — | DL261253 | 2023-10-23 | Active | Huron |
| Tyler's Floor Restoration, LLC | — | DL211485 | 2021-10-03 | Inactive | Yankton |
| Tyler's Landscaping & Construction d.b.a TLC, LLC | — | DL213792 | 2021-11-04 | Dissolved | Aberdeen |
| Tyler's Lawn Care L.L.C | — | DL181052 | 2020-05-06 | Dissolved | Sioux Falls |
| Tyler's Lawn Care, L.L.C | — | DL281070 | 2024-08-15 | Active | Tea |
| Tyler's Sprinkler Service, LLC | — | DL178776 | 2020-04-02 | Active | Belle Fourche |
| Tyler's Tree Removal LLC | — | DL269094 | 2024-02-23 | Dissolved | TYNDALL |
| Tyler's Window Cleaning LLC | — | DL274542 | 2024-05-07 | Suspended | Brookings |
| TYLER-THOMAS, L.L.P. | — | DR000221 | 1997-12-15 | Inactive | — |
| Tylluan Travels LLC | — | DL211472 | 2021-10-02 | Dissolved | Black Hawk |
| TYMACRepo MR LLC | — | DL223148 | 2022-03-21 | Revoked | SIOUX FALLS |
| Tymak LLC | — | DL246789 | 2023-03-17 | Dissolved | Aberdeen |
| Tymak Properties, LLC | — | DL291291 | 2025-01-18 | Active | Aberdeen |
| Tyme Entity LLC | — | DL248803 | 2023-04-17 | Active | Mitchell |
| Tymilla Chain Wisdom LLC | — | DL252956 | 2023-06-15 | Dissolved | Rapid City |
| TyMitch Productions, Inc. | — | DB130652 | 2017-02-14 | Dissolved | WARNER |
| TYMPANA (USA), INC. | — | FB030748 | 2006-06-27 | Revoked | GLEN ALLEN |
| TYNDALL ACE HARDWARE, LLC | — | DL021605 | 2010-05-27 | Active | TYNDALL |
| TYNDALL AREA JAYCEES, INCORPORATED | — | NS007502 | 1983-01-13 | Inactive | — |
| TYNDALL AUTO SUPPLY, INC. | — | DB052725 | 2007-09-07 | Dissolved | TYNDALL |
| TYNDALL CEMETERY ASSOCIATION | — | NS001927 | 1907-01-26 | Dissolved | TYNDALL |
| TYNDALL DEVELOPMENT COMPANY, INCORPORATED | — | NS005268 | 1973-03-20 | Active | TYNDALL |
| TYNDALL FORD-MERCURY, INC. | — | DB013634 | 1976-06-17 | Dissolved | — |
| TYNDALL HARDWARE, INC. | — | DB044253 | 2001-06-25 | Inactive | — |
| TYNDALL HATCHERY, INC. | — | DB003465 | 1964-01-02 | Dissolved | — |
| TYNDALL HOUSING AND REDEVELOPMENT COMMISSION | — | NS005717 | 1975-02-04 | Active | TYNDALL |
| Tyndall Market LLC | — | DL141999 | 2018-01-03 | Active | Tyndall |
| TYNDALL MOTORS, INC. | — | DB009802 | 1969-09-04 | Dissolved | — |
| TYNDALL MOTORS, INC. | — | DB034643 | 1994-07-25 | Active | TYNDALL |
| TYNDALL PRESBYTERIAN CHURCH | — | CH000506 | 1954-03-26 | Dissolved | TYNDALL |
| Tyndall Rural Fire Protection District | — | EM178044 | 2020-02-28 | Active | — |
| TYNDALL SENIOR CITIZEN, INC. | — | NS006021 | 1976-05-25 | Dissolved | TYNDALL |
| TYNDALL SOFTBALL/BASEBALL ASSOCIATION, L.L.C. | — | DL001721 | 1998-06-18 | Dissolved | — |
| TYNDALL TRUE VALUE HARDWARE, INC. | — | DB032627 | 1993-01-29 | Inactive | — |
| TYNDALL VETERINARY CLINIC, P.C. | — | DB054615 | 2009-06-22 | Active | Tyndall |
| TYNDALL, SD | — | CI000127 | 1887-07-07 | Active | — |
| TYNDALL-BON HOMME AREA CHAMBER OF COMMERCE, INCORPORATED | — | NS006489 | 1978-05-04 | Active | Lesterville |
| Tyon Associates LLC | — | DL243979 | 2023-02-15 | Suspended | Pine Ridge |
| TYPE A, INC. | — | DB054558 | 2009-06-01 | Dissolved | RAPID CITY |
| Type E Motorsports, LLC | — | DL160793 | 2019-02-24 | Active | Rapid City |
| TYPE EMPORIUM PRINTING COMPANY, INC. | — | DB049489 | 2005-03-29 | Inactive | — |
| TYPE R ENGINEERING LLC | — | DL172787 | 2019-11-10 | Active | Black Hawk |