| YARMOUTH LUMBER INC. | 19550122D | 1955-05-03 | Active | — |
| YARMOUTH MANUFACTURING | 19200010D | 1920-04-15 | Active | — |
| YARMOUTH VILLAGE IMPROVEMENT SOCIETY | 19140002ND | 1914-01-20 | Active | — |
| Yarn and Mary LLC | DL301334 | 2025-05-29 | Active | Yankton |
| YARN PEDDLERS, INC. | DB022398 | 1983-05-13 | Dissolved | — |
| YARNKNIT!,L.L.C. | DL006872 | 2004-01-29 | Dissolved | ABERDEEN |
| YARROW TRUST COMPANY LLC | DL198795 | 2021-03-17 | Active | SIOUX FALLS |
| Yarrows Creations LLC | DL231983 | 2022-08-03 | Dissolved | Sioux Falls |
| YARSAL INC | DB182925 | 2020-06-11 | Dissolved | OAKBROOK TERRACE |
| YAS II, Inc. | DB045229 | 2002-03-18 | Active | YANKTON |
| YASA LLC | DL297851 | 2025-04-12 | Suspended | Huntingtown |
| Yasaph LLC | FL305598 | 2025-07-25 | Active | sioux Falls |
| YASCOTRANS LLC | DL023876 | 2011-02-28 | Dissolved | SIOUX FALLS |
| Yash & Lujan Consulting, Inc | DB260235 | 2023-11-01 | Active | San Antonio |
| YASHA BRAND LTD. CO. | DL163827 | 2019-04-29 | Dissolved | Sioux Falls |
| YASHA FOUNDATION | NS015014 | 2012-12-28 | Active | DAKOTA DUNES |
| Yasha Holdings Ltd. Co. | DL151032 | 2018-07-13 | Dissolved | Sioux Falls |
| YASHA VARGA, INC. | DB053946 | 2008-10-06 | Dissolved | SIOUX FALLS |
| YASIR AND SIDDIQUE LLC | DL158412 | 2019-01-21 | Active | Winner |
| Yasmeen Dream 111, LLC | DL167297 | 2019-07-14 | Active | Rapid City |
| Yasmeen Dream 4, LLC | DL192433 | 2020-12-08 | Active | Rapid City |
| Yasmeen Dream ll, LLC | DL156026 | 2018-11-06 | Active | Rapid City |
| YASMEEN DREAM, LLC | DL014015 | 2007-06-01 | Active | RAPID CITY |
| YASO LLC | DL173204 | 2019-11-19 | Dissolved | YANKTON |
| YASS, Inc. | DB060735 | 2016-03-07 | Active | Prosper |
| YASTE, ZENT & RYE AGENCY, INC. | FB016586 | 1993-12-20 | Inactive | FORT WAYNE |
| YATA LLC | DL137938 | 2017-10-04 | Dissolved | BROOKINGS |
| Yates & Shubeck, Prof. L.L.C. | DL194852 | 2021-01-15 | Active | Rapid City |
| Yates Corporation | DB188127 | 2020-09-25 | Dissolved | Lower Brule |
| Yates Hair Shaft Salon & Spa LLC | DL172196 | 2019-10-26 | Active | Lead |
| Yates Junk In The Trunk LLC | DL315733 | 2025-12-15 | Active | Custer |
| YATES TRUCKING LLC | DL329841 | 2026-05-28 | Active | Mobridge |
| YATES, INC. | DB046112 | 2002-11-21 | Dissolved | — |
| Yates, LLC | DL291591 | 2025-01-22 | Active | Box Elder |
| Yathra Investments LLC | DL332395 | 2026-06-30 | Active | Sugarland |
| YATZY Marketing, LLC. | DL254873 | 2023-07-18 | Dissolved | Sioux Falls, SD |
| YAUNEY TRUCKING, INC. | DB026362 | 1987-05-08 | Dissolved | HURON |
| Yauntree LLC | DL185255 | 2020-07-29 | Active | Coral Gables |
| YAWAY, L.L.C. | DL008425 | 2004-12-30 | Dissolved | YANKTON |
| Yawning Dove LLC | DL281260 | 2024-08-18 | Active | Spearfish |
| Yaxcal Remodelacion LTD. Company | DL309501 | 2025-09-17 | Active | Plankinton |
| YaxLand Farms, LLC | DL315329 | 2025-12-09 | Active | Centerville |
| Yayolin, LLC | DL050529 | 2016-11-02 | Active | Sioux Falls |
| YAZAM INC. | DB052033 | 2007-02-12 | Inactive | — |
| YB Dispatching, LLC | DL131034 | 2017-02-27 | Active | MCCOOK LAKE |
| YB FITT, LLC | DL289840 | 2024-12-28 | Active | Rapid City |
| YBA LLC | DL250435 | 2023-05-09 | Dissolved | Keystone |
| YBGB, LLC | DL034957 | 2013-09-03 | Dissolved | MADISON |
| YC REALTY, INC. | 19470068D | 1947-06-10 | Active | — |
| YC, INC. | FB035105 | 2011-04-21 | Inactive | SUNDANCE |
| YCB, LLC | DL001764 | 1998-07-16 | Active | SIOUX FALLS |
| YCBC LLC | DL295364 | 2025-03-12 | Dissolved | Watertown |
| YCC, INC. | FB015196 | 1992-04-13 | Inactive | SIOUX CITY |
| YCLI, LLC | DL252285 | 2023-06-06 | Active | SIOUX FALLS |
| YCN ENT LLC | DL254572 | 2023-07-13 | Dissolved | Sioux Falls |
| YCS PROPERTY LLC | DL287687 | 2024-11-25 | Active | WATERTOWN |
| YCY, LLC | DL191262 | 2020-11-14 | Dissolved | Sioux Falls |
| Yde Distribution LLC | DL262469 | 2023-11-13 | Dissolved | Watertown |
| Yde Properties LLC | FL136973 | 2017-09-12 | Active | Sioux Falls |
| YDOC Design LLC | DL313805 | 2025-11-17 | Active | Spearfish |
| YE OLDE CHANDLER LLC | DL181345 | 2020-05-11 | Dissolved | CANTON |
| Ye Olde Shoppes LLC | DL175715 | 2020-01-13 | Inactive | Spearfish |
| Yeager AG LLC | DL261843 | 2023-11-02 | Active | COLUMBIA |
| Yeager Diesel LLC | DL328028 | 2026-05-06 | Active | Vermillion |
| Yeah Studio LLC | DL322279 | 2026-03-02 | Active | Dakota Dunes |
| YEAR ROUND BROWN DISTRIBUTORS, INC. | DB047901 | 2004-02-09 | Dissolved | SIOUX FALLS |
| YEAR ROUND BROWN TANNING SALONS, INC. | DB033625 | 1993-11-17 | Active | SIOUX FALLS |
| YEAR ROUND BROWN, INC. | DB030125 | 1991-01-02 | Active | SIOUX FALLS |
| Year Round Lighting, LLC | DL238739 | 2022-11-16 | Dissolved | Tea |
| Year round yard care LLC | DL312945 | 2025-11-04 | Active | Sioux falls |
| Yearly Traditions LLC | DL285515 | 2024-10-22 | Active | Mitchell |
| Yeaton Cattle Company, LLC | DL227498 | 2022-05-23 | Dissolved | Kimball |
| Yeaton Livestock Partnership Company | DB134124 | 2017-06-11 | Dissolved | Kimball |
| YEGEN ASSOCIATES, INC. | FB010723 | 1986-02-21 | Revoked | PARAMUS |
| Yeh and Associates, Inc. | FB288397 | 2024-12-07 | Active | Denver |
| YEHLE CO, INC | DB187515 | 2020-09-11 | Active | Rapid City |
| YEHUA TRENDY CLOSET LLC | DL304241 | 2025-07-09 | Active | SIOUX FALLS |
| YELDUZ TRUSTEES, INC. | NS000836 | 1965-06-04 | Active | ABERDEEN |
| Yellow and Blue Van LLC | DL158534 | 2019-01-07 | Dissolved | Brookings |
| YELLOW BANK ENTERPRISES, INC. | DF048109 | 2004-04-05 | Dissolved | NEWELL |
| Yellow Bear Canyon Properties, L.L.C. | DL148890 | 2018-05-30 | Active | Kyle |
| YELLOW BEARS LODGE | NS011779 | 2001-06-14 | Inactive | — |
| Yellow Belt LLC | DL245395 | 2023-02-28 | Suspended | Watertown |
| YELLOW BIKE PROGRAM & RECONDITIONED BIKES FOR KIDS INC. | NS010621 | 1996-07-18 | Dissolved | RAPID CITY |
| Yellow Bird Rentals L.L.C. | DL158642 | 2019-01-09 | Dissolved | brookings |
| Yellow Bird Shop LLC | DL217432 | 2021-12-30 | Active | Hayti |
| Yellow Bird's Grandchildren | NS165831 | 2019-06-11 | Dissolved | WOUNDED KNEE |
| YELLOW BIRD, LLC | DL030432 | 2012-12-12 | Dissolved | RAPID CITY |
| YELLOW BOX SD LLC | DL196278 | 2021-02-08 | Active | Belle Fourche |
| Yellow Brick Properties, LLC | DL297033 | 2025-04-02 | Active | Aberdeen |
| Yellow Brows Studio LLC | DL203466 | 2021-05-24 | Active | Rapid City |
| Yellow Bug LLC | DL231133 | 2022-07-22 | Active | Hermosa |
| YELLOW CAB ADVERTISING, LLC | DL015547 | 2008-01-14 | Inactive | — |
| YELLOW CAB COMPANY, SIOUX FALLS | DB006422 | 1957-11-19 | Dissolved | Sioux Falls |
| YELLOW CANOPY VIDEO, INC. | DB030050 | 1990-12-13 | Inactive | — |
| YELLOW CAT MARINE LLC | DL031631 | 2013-03-12 | Dissolved | BOX ELDER |
| YELLOW CORPORATION | FB038983 | 2015-11-19 | Active | overland park |
| YELLOW CREEK STONE, INCORPORATED | DB033947 | 1994-01-20 | Inactive | — |
| Yellow Dog Grooming Company LLC | DL160855 | 2019-03-01 | Active | Chamberlain |
| Yellow Dog Travel & Adventures, LLC | DL293570 | 2025-02-18 | Active | Oacoma |
| Yellow Dog, LLC | DL230653 | 2022-07-15 | Active | Yankton |
| Yellow Door Investments LLC | DL261165 | 2023-10-20 | Active | Sioux Falls |
| Yellow Door LLC | DL189344 | 2020-10-14 | Active | Sioux Falls |
| YELLOW FREIGHT CORPORATION | FB197522 | 2021-02-26 | Revoked | overland park |
| Yellow Glove Media, LLC | DL136700 | 2017-09-05 | Dissolved | HARRISBURG |
| Yellow Horse Ranch, Inc. | DF006502 | 1957-02-15 | Active | MUD BUTTE |
| Yellow House LLC | DL278935 | 2024-07-16 | Active | Custer |
| Yellow House Rentals, LLC | DL277460 | 2024-06-21 | Dissolved | Sioux falls |
| Yellow HummingBird Designs INC | DB238774 | 2022-11-17 | Dissolved | stephan |
| YELLOW IRON LENDING, LLC | FL254516 | 2023-07-12 | Active | SCOTTSDALE |
| YELLOW JACKET FOUNDATION, INC. | NS005659 | 1974-10-09 | Inactive | SPEARFISH |
| Yellow Jacket Irrigation & Landscaping, LLC | DL140976 | 2017-12-13 | Active | Sioux Falls |
| YELLOW JERSEY CONSTRUCTION, INC. | DB045117 | 2002-02-15 | Dissolved | Rapid City |
| Yellow Lab, LLC | DL285272 | 2024-10-17 | Active | Colome |
| YELLOW LOGISTICS, INC. | FB197521 | 2021-02-26 | Active | OVERLAND PARK |
| Yellow Painted Horse Enterprise LLC | DL290137 | 2025-01-02 | Active | Parade |
| Yellow Perch Tavern LLC | DL166744 | 2019-06-28 | Dissolved | Badger |
| YELLOW ROBE CONSULTING INC | DB178895 | 2020-03-17 | Active | RAPID CITY |
| YELLOW ROBE CONSULTING, INC. | DB051475 | 2006-08-28 | Inactive | RAPID CITY |
| YELLOW ROBE ENTERPRISES, LLC | DL013824 | 2007-05-04 | Dissolved | RAPID CITY |
| YELLOW ROSE ARENA, L.L.C. | DL002202 | 1999-04-13 | Inactive | — |
| Yellow Rose Enterprises, LLC | DL041305 | 2014-12-04 | Inactive | HUDSON |
| YELLOW ROSE, INC. | DB035463 | 1995-02-27 | Dissolved | — |
| Yellow Rose, LLC | DL278723 | 2024-07-12 | Active | HUDSON |
| Yellow Stilettos, LLC | DL165419 | 2019-05-31 | Inactive | Rapid City |
| YELLOW STONE CAB L.L.C. | DL049264 | 2016-07-14 | Dissolved | SIOUX FALLS |
| YELLOW SUNSHINE HOUSE, LLC | DL011519 | 2006-06-12 | Active | BUFFALO GAP |
| Yellow Thunder Management LLC | DL233566 | 2022-08-29 | Dissolved | Box Elder |
| YELLOW TRANSPORTATION, INC. | FB018568 | 1996-01-12 | Inactive | OVERLAND PARK |
| Yellow Truth Dragon LLC | DL048486 | 2016-05-13 | Active | RAPID CITY |
| YELLOW WOLF, INC. | DB055761 | 2010-12-16 | Dissolved | RAPID CITY |
| Yellowfin Transportation, Inc. | DB205005 | 2021-06-19 | Active | SHAWNEE |
| YELLOWFRONT GROCERY | 19500044D | 1950-12-11 | Active | — |
| YELLOWHAMMER/CROW CREEK CASINO MANAGEMENT, INC. | FB015690 | 1992-11-24 | Revoked | WILMINGTON |
| YELLOWHAMMER/CROW CREEK CASINO MANAGEMENT, LIMITED PARTNERSHIP | DP000299 | 1992-11-24 | Active | — |
| YELLOWHAMMER/PINE RIDGE CASINO MANAGEMENT, INC. | FB015856 | 1993-02-16 | Inactive | DOVER |
| YELLOWHAMMER/PINE RIDGE CASINO MANAGEMENT, LIMITED PARTNERSHIP | DP000317 | 1993-02-16 | Inactive | — |
| YELLOWJACKET PROPERTIES, L.L.C. | DL008217 | 2004-11-19 | Inactive | SIOUX FALLS |
| YELLOWPAGES.COM LLC | FL003623 | 2007-07-17 | Inactive | TUCKER |
| Yellowstone Candle LLC | DL290270 | 2025-01-03 | Dissolved | CUSTER |
| YellowStone Cattle I, LLC | DL220391 | 2022-02-10 | Active | BRANDON |
| Yellowstone Conservation Ranch, LLC | DL303076 | 2025-06-23 | Active | Box Elder |
| Yellowstone Conservation Ranches, LLC | DL265510 | 2023-12-31 | Dissolved | Box Elder |
| Yellowstone Engineering Group, PLLC | DL331133 | 2026-06-15 | Active | Post Falls |
| YELLOWSTONE ENVIRONMENTAL CONTRACTING LLC | FL140757 | 2017-12-07 | Active | MILES CITY |
| YELLOWSTONE FOOD SYSTEMS, INC. | FB009842 | 1984-10-22 | Inactive | CODY |
| Yellowstone Helicopters, LLC | DL224561 | 2022-04-08 | Dissolved | Custer |
| YELLOWSTONE HYDRAULICS, INC. | FB013179 | 1989-11-13 | Revoked | BILLINGS |
| Yellowstone L & R Ranch LLC | FL259870 | 2023-11-06 | Revoked | ORANGEBURG |
| Yellowstone Life Insurance Agency, LLC | FL234713 | 2022-09-15 | Active | Weatherford |
| Yellowstone Motel, LLC | DL231069 | 2022-07-21 | Active | IPSWICH |
| YELLOWSTONE OIL & GAS, INC. | FB008846 | 1983-03-14 | Revoked | DENVER |
| Yellowstone Ranch, LLC | DL193423 | 2020-12-22 | Active | Isabel |
| Yellowstone RE Holdings LLC | FL174767 | 2019-12-21 | Revoked | Jackson |
| Yellowstone Structured Management, LLC | DL249177 | 2023-04-21 | Active | Box Elder |
| Yellowstone Tallow LLC | DL290269 | 2025-01-03 | Dissolved | CUSTER |
| YELLOWSTONE TRADITIONS, INC. | FB027868 | 2003-11-03 | Revoked | BOZEMAN |
| YELLOWSTONE TRAIL BANCORPORATION | DB028870 | 1989-11-13 | Inactive | IPSWICH |
| YELLOWSTONE TRAIL SADDLE CLUB | NS004944 | 1971-06-04 | Inactive | — |
| Yellowstone Trail Wind, LLC | FL304979 | 2025-07-18 | Active | CHICAGO |
| YELLOWTAIL, INC. | DB058361 | 2013-12-03 | Dissolved | DAKOTA DUNES |
| YENDO AUTO SERVICING LLC | FL309574 | 2025-09-18 | Active | DALLAS |
| YENINA, LLC | DL020095 | 2009-11-04 | Inactive | MORAGA |
| Yenlea Technologies LLC | DL280314 | 2024-08-02 | Dissolved | Rapid City |
| YENPING ART STUDIOS LLC | FL150239 | 2018-06-25 | Inactive | SIOUX FALLS |
| YENTER COMPANIES, INC. | FB018085 | 1995-07-26 | Inactive | ARVADA |
| YEOMAN PROPERTIES, LLC | DL005552 | 2003-02-21 | Dissolved | Belle Fourche |
| YEOMIL LLC | DL303705 | 2025-07-01 | Active | North Sioux City |
| YepYepNip Collectibles LLC | DL253199 | 2023-06-20 | Dissolved | Sioux Falls |
| YER EXPRESS L.L.C. | DL309376 | 2025-09-16 | Active | SIOUX FALLS |
| YERGER CO., LLC | FL000951 | 2001-05-09 | Inactive | WEST LAWN |
| YERR KILLING ME SMALLZ PROPERTIES LLC | DL331237 | 2026-06-16 | Active | Mitchell |
| YERXA'S INC. | 19590183D | 1959-03-06 | Suspended | — |
| YES CAPITAL FUNDING, INC. | FB020787 | 1997-12-08 | Inactive | ENCINITAS |
| YES Communications Inc. | DB058613 | 2014-01-16 | Dissolved | RAPID CITY |
| YES HIM Consulting, Inc. | FB155221 | 2018-10-17 | Revoked | Largo |
| Yes Miss Summer Custom Woodworking LLC | DL231329 | 2022-07-25 | Active | Harrisburg |
| Yes Online Inc | FB148802 | 2018-05-25 | Active | Santa Clarita |
| YES ONLINE INC. | FB038669 | 2015-06-29 | Revoked | SANTA CLARTIA |
| YES YOGA ONE, LLC | DL043962 | 2015-06-11 | Dissolved | SIOUX FALLS |
| YES! (Youth Eating Smart), LLC | DL166255 | 2019-06-20 | Dissolved | SIOUX FALLS |
| Yes, Let's Wine Company, LLC | DL311751 | 2025-10-17 | Active | Wagner |
| YES7069 LLC | DL331869 | 2026-06-29 | Active | vermilion |
| YESCO LLC | FL005187 | 2010-06-18 | Active | SALT LAKE CITY |
| Yeshua, LLC | DL157547 | 2018-12-13 | Active | Rapid City |
| Yeslin Glam Photo Studio L.L.C. | DL327962 | 2026-05-05 | Active | Yankton |
| Yessica's Restaurant LLC | DL174639 | 2019-12-19 | Dissolved | Brookings |
| YESSICAS RESTAURANT LLC | DL227243 | 2022-05-18 | Active | SIOUX FALLS |
| YESTEL USA, INC. | FB030593 | 2006-04-28 | Revoked | ONTARIO |
| YESTERDAY'S INCORPORATED | DB033764 | 1993-12-22 | Dissolved | YANKTON |
| YESTERDAY'S INN, LLC | DL014690 | 2007-09-18 | Dissolved | SPEARFISH |
| YESTERDAY'S RESTAURANTS, INC. | DB051668 | 2006-11-02 | Active | YANKTON |
| Yesternight Entertainment LLC | DL043441 | 2015-05-20 | Active | Urbandale |
| YESTERYEAR SPORTS MEMORABILIA LLC | DL256695 | 2023-08-14 | Active | SPEARFISH |
| Yet We Rise Inc. | NS161326 | 2019-03-06 | Dissolved | Rapid City |
| Yeti Games, LLC | FL230419 | 2022-07-12 | Active | Fort Worth |
| Yeti Monster, LLC | DL284132 | 2024-09-30 | Active | Deadwood |
| Yeti Web Design LLC | DL153400 | 2018-09-04 | Inactive | Belle Fourche |
| YETMAN CUSTOM HOMES, INC. | DB052402 | 2007-07-01 | Dissolved | SIOUX FALLS |
| YEUNG, INC. | DB052035 | 2007-02-12 | Dissolved | RAPID CITY |