| Big Sioux Design, LLC | DL128469 | 2016-12-09 | Active | Sioux Falls |
| BIG SIOUX DEVELOPMENT COMPANY | DB035314 | 1995-01-20 | Dissolved | SIOUX FALLS |
| Big Sioux Disc Golf Club | NS049565 | 2015-01-23 | Active | SIOUX FALLS |
| BIG SIOUX FINANCIAL, INC. | DB027616 | 1988-08-10 | Active | ESTELLINE |
| Big Sioux Fisheries, Inc. | DB060354 | 2015-09-21 | Dissolved | BRUCE |
| Big Sioux Fizz LLC | DL305923 | 2025-07-31 | Active | Sioux Falls |
| Big Sioux Flooring, LLC | DL142959 | 2018-01-23 | Dissolved | Brookings |
| Big Sioux Holdings LLC | DL274199 | 2024-05-02 | Active | Sioux Falls |
| BIG SIOUX INVESTORS, LLC | DL014143 | 2007-06-25 | Inactive | — |
| Big Sioux Kennels LLC | DL042238 | 2015-02-09 | Active | Hudson |
| BIG SIOUX LEASING COMPANY | DB013452 | 1976-03-15 | Inactive | — |
| BIG SIOUX MACHINING AND ENGRAVING, L.L.C. | DL043664 | 2015-05-11 | Dissolved | CANTON |
| BIG SIOUX MAINTENANCE, LLC | DL025066 | 2011-06-29 | Active | Sioux Falls |
| Big Sioux Monuments, LLC | DL159789 | 2019-02-01 | Active | Canton |
| BIG SIOUX NURSERY, INC. | NS010586 | 1996-05-30 | Active | Watertown |
| Big Sioux Plumbing LLC | DL188870 | 2021-01-01 | Active | Volga |
| Big Sioux Polo, LLC | DL230624 | 2022-07-15 | Active | Sioux Falls |
| BIG SIOUX PORK, LLC | DL030703 | 2012-12-26 | Active | BRANDON |
| BIG SIOUX POWERSPORTS, INC. | DB056484 | 2011-12-05 | Active | SIOUX FALLS |
| BIG SIOUX PROPERTIES, LLC | DL031568 | 2013-03-07 | Active | ELK POINT |
| Big Sioux Property Management, LLC | DL215534 | 2021-12-02 | Active | Bruce |
| Big Sioux RE, LLC | DL211741 | 2021-10-06 | Active | Brandon |
| BIG SIOUX REALTY L.L.C. | DL014323 | 2007-07-23 | Inactive | — |
| Big Sioux Repair, LLC | DL327837 | 2026-05-04 | Active | Brookings |
| Big Sioux Retrievers LLC | DL224616 | 2022-04-10 | Active | Beresford |
| Big Sioux River Adventures, LLC | DL143236 | 2018-01-29 | Dissolved | Vermillion |
| Big Sioux River Trucking LLC | DL264843 | 2023-12-20 | Active | Watertown |
| BIG SIOUX SALVAGE LC | DL030195 | 2012-11-26 | Inactive | HUDSON |
| BIG SIOUX SCREEN PRINT, LLC | DL018617 | 2009-04-02 | Dissolved | ELK POINT |
| Big Sioux Services LLC | DL159555 | 2019-02-01 | Dissolved | Brookings |
| Big Sioux Sheds and Hideaways LLC | DL046008 | 2015-12-02 | Dissolved | Sioux Falls |
| Big Sioux Shore Line, L.L.C. | DL041457 | 2014-12-12 | Dissolved | BROOKINGS |
| Big Sioux Storage LLC | DL216579 | 2021-12-16 | Active | Sioux Falls |
| BIG SIOUX TICKS PUP TENT NO. 1 MILITARY ORDER OF THE COOTIE | NS002725 | 1951-06-23 | Inactive | — |
| BIG SIOUX TIRE & AUTO LLC | DL031505 | 2013-03-04 | Dissolved | FLANDREAU |
| Big Sioux Trailer Rental LLC | DL306461 | 2025-08-06 | Active | Sioux Falls |
| BIG SIOUX TURKEY FARM, INC. | DF012119 | 1974-02-01 | Dissolved | — |
| Big Sioux Veterinary Care, Prof. LLC | DL177430 | 2020-02-17 | Active | Brookings |
| Big Sioux Windows & Doors, Inc. | DB143554 | 2018-02-05 | Dissolved | North Sioux City |
| BIG SIOUX YOUTH BASKETBALL LEAGUE, INC. | NS014361 | 2010-07-08 | Dissolved | CANTON |
| Big Sky Accounting & Tax Solutions LLC | DL296751 | 2025-04-01 | Active | Sioux Falls |
| Big Sky Asset Management, LLC | DL267678 | 2024-02-01 | Active | Kalispell |
| Big Sky Co | DB298540 | 2025-04-23 | Suspended | Fargo |
| BIG SKY CONSTRUCTION, INC. | DB051073 | 2006-05-05 | Inactive | — |
| Big Sky Distributing LLC | DL247622 | 2023-03-29 | Inactive | Mount Vernon |
| Big Sky Energy Alliance LLC | DL307146 | 2025-08-15 | Active | Sioux Falls |
| Big Sky Enterprise LLC | DL319176 | 2026-01-27 | Active | Sioux Falls |
| Big Sky Holdings, LLC | DL037525 | 2014-02-19 | Inactive | ABERDEEN |
| Big Sky Home Services Inc | DB331533 | 2026-06-18 | Active | Houston |
| BIG SKY HOMEOWNERS ASSOCIATION, INC. | NS011048 | 1998-06-15 | Inactive | — |
| BIG SKY INVESTMENTS, INC. | DB055404 | 2010-06-11 | Dissolved | ABERDEEN |
| BIG SKY INVESTMENTS, LLC | DL021114 | 2010-03-30 | Inactive | ABERDEEN |
| Big Sky Investments, LLC | DL246441 | 2023-03-14 | Inactive | Tripp |
| Big Sky Lodge Estate, LLC | DL178666 | 2020-03-12 | Dissolved | Rapid City |
| Big Sky Lodge, LLC | DL174748 | 2019-12-20 | Dissolved | Rapid City |
| BIG SKY MARKETING GROUP, INCORPORATED | DB021330 | 1982-02-22 | Inactive | — |
| BIG SKY OIL COMPANY | FB010273 | 1985-06-13 | Revoked | BISMARCK |
| BIG SKY PHYSICAL THERAPY, P.C. | FB015542 | 1992-09-21 | Inactive | RAPID CITY |
| BIG SKY PIPELINE CONTRACTORS, INC. | DB032853 | 1993-03-29 | Inactive | — |
| Big Sky Place Homeowners Association | NS293255 | 2025-02-13 | Active | Sioux Falls |
| Big Sky Premier Estates, LLC | DL300791 | 2025-05-21 | Suspended | Pierre |
| BIG SKY PRODUCTIONS, LLC | DL135467 | 2017-07-28 | Active | Vale |
| BIG SKY PROPERTIES, L.L.C. | DL009626 | 2005-08-02 | Inactive | — |
| BIG SKY RAILROAD SERVICE, INC. | FB025881 | 2002-01-17 | Inactive | JOLIET |
| Big Sky Ranch LLC | DL274818 | 2024-05-13 | Inactive | Belle Fourche |
| BIG SKY RANCHES, INC. | FB023824 | 2000-04-27 | Inactive | HOUSTON |
| BIG SKY REAL ESTATE, LLC | DL005486 | 2003-01-29 | Dissolved | PIEDMONT |
| Big Sky Resources, LLC | DL174238 | 2019-12-12 | Dissolved | Sioux Falls |
| BIG SKY ROAD DISTRICT | DM009510 | 2002-08-19 | Active | CUSTER |
| Big Sky RV Skirtings, LLC | DL049785 | 2016-09-01 | Active | BOX ELDER |
| Big Sky Sales, LLC | DL266155 | 2024-01-10 | Dissolved | Armour |
| BIG SKY SURGICAL SERVICES, LLC | DL042507 | 2015-03-10 | Inactive | SIOUX FALLS |
| Big Sky Tile & Bath LLC | DL254642 | 2023-07-14 | Active | Spearfish |
| BIG SKY TRANSPORTATION CO. | FB009392 | 1984-02-10 | Inactive | BILLINGS |
| BIG SKY UNDERWRITERS, INC. | FB028486 | 2004-04-28 | Revoked | MISSOULA |
| Big Sky Upholstery & Supply, LLC | DL135531 | 2017-07-31 | Dissolved | RAPID CITY |
| BIG SKY WEST HOLDINGS, LLC | DL036892 | 2014-01-14 | Dissolved | HELENA |
| BIG SKY, L.L.C. | DL001124 | 1997-01-30 | Dissolved | HILL CITY |
| Big Smith Enterprises Inc | DB279148 | 2024-07-18 | Active | Watertown |
| Big Snacks Vending, LLC | DL199643 | 2021-03-27 | Suspended | Aberdeen |
| BIG SOO TRACTOR PARTS, INC. | DB034503 | 1994-06-15 | Inactive | — |
| Big Spirit Lake Holding LLC | FL207033 | 2021-07-22 | Active | Rapid City |
| Big Splash Dunk Tank Rentals LLC | DL201975 | 2021-04-29 | Suspended | Canton |
| BIG SPRINGS BAPTIST CHURCH | CH002914 | 1972-12-20 | Active | ALCESTER |
| Big Springs Bison, LLC | DL176758 | 2020-02-03 | Dissolved | Peever |
| BIG SPRINGS CEMETERY ASSOCIATION | NS002511 | 1906-07-27 | Active | ALCESTER |
| BIG SPRINGS CREEK LIMITED PARTNERSHIP | DP000408 | 1994-07-21 | Inactive | — |
| BIG SPRINGS TRUCKING, INC. | DB050938 | 2006-04-03 | Dissolved | HAWARDEN |
| Big Springs, LLC | DL176862 | 2020-02-05 | Active | Alcester |
| Big Squid Media LLC | DL291885 | 2025-01-27 | Dissolved | Spearfish |
| BIG STAR EQUIPMENT LLC | FL000469 | 1999-03-15 | Revoked | SIOUX FALLS |
| BIG STAR RANCH, INC. | DF011585 | 1973-03-26 | Active | BLACK HAWK |
| Big Star Trolley Company LLC | DL145235 | 2018-03-12 | Dissolved | Mina |
| BIG STONE BROADCASTING, INC. | DB041725 | 1999-08-06 | Inactive | — |
| BIG STONE CELLULAR, INC. | FB031751 | 2007-06-18 | Revoked | ORTONVILLE |
| BIG STONE CHEESE FACTORY, INCORPORATED | DB003088 | 1955-10-08 | Inactive | — |
| Big Stone City Commons | NS318155 | 2026-01-15 | Active | Big Stone City |
| BIG STONE CITY DEVELOPMENT CORP. | NS008382 | 1986-09-23 | Dissolved | BIG STONE CITY |
| BIG STONE CITY HISTORICAL SOCIETY | NS011895 | 2001-12-06 | Dissolved | BIG STONE CITY |
| BIG STONE CITY INKPA DAYS, INC. | NS008694 | 1988-03-09 | Active | Big Stone City |
| BIG STONE CITY VOLUNTEER FIRE DEPARTMENT, INC. | NS009388 | 1991-05-01 | Active | BIG STONE CITY |
| Big Stone Commons LLC | DL301999 | 2025-06-09 | Active | Big Stone City |
| BIG STONE CONSTRUCTION, INC. | DB052401 | 2007-05-23 | Dissolved | — |
| BIG STONE COOPERATIVE | FC017087 | 1994-07-08 | Revoked | CLINTON |
| BIG STONE DEVELOPMENT, INC. | DB013499 | 1976-04-02 | Inactive | — |
| Big Stone Energy Storage Project, LLC | FL296137 | 2025-03-21 | Active | Sunnyvale |
| BIG STONE ENTERPRISES, L.L.C. | DL011750 | 2006-07-21 | Active | Big Stone City |
| Big Stone Holdings, LLC | DL278521 | 2024-07-09 | Inactive | West Fargo |
| BIG STONE INCORPORATED | FF000134 | 1926-06-25 | Revoked | CHASKA |
| BIG STONE INSURANCE AGENCY | DB016425 | 1979-02-15 | Dissolved | — |
| BIG STONE LAKE AREA COMMUNITY FORUMS, THE NEW MEDIA, LLC | DL018073 | 2009-01-12 | Dissolved | MILBANK |
| BIG STONE LAKE DEVELOPMENT, LLC | DL018671 | 2009-04-13 | Active | Big Stone City |
| BIG STONE LAKE REALTY, L.L.C. | DL000155 | 1994-03-28 | Inactive | — |
| Big Stone Management Systems, LLC | DL131007 | 2017-02-24 | Dissolved | SIOUX FALLS |
| Big Stone Marketing, LLC | FL042367 | 2014-01-15 | Active | PIPESTONE |
| Big Stone Pumpkin Patch, L.L.C. | DL130034 | 2017-01-30 | Active | Big Stone City |
| Big Stone Realty, LLC | DL301700 | 2025-06-04 | Active | Big Stone City |
| Big Stone Rental, LLC | DL295449 | 2025-03-13 | Dissolved | Milbank |
| BIG STONE SENIOR CITIZENS, INC. | NS006399 | 1977-12-30 | Dissolved | BIG STONE CITY |
| Big Stone Solar II, LLC | FL232740 | 2022-08-16 | Active | Charlottesville |
| BIG STONE SOLAR, LLC | FL161078 | 2019-03-01 | Revoked | CHARLOTTESVILLE |
| Big Stone Solar, LLC | FL321725 | 2026-02-24 | Active | Charlottesville |
| Big Stone Staffing, LLC | DL149693 | 2018-06-15 | Active | BIG STONE CITY |
| BIG STONE STAINLESS MANUFACTURING, INC. | DB019959 | 1980-08-21 | Inactive | — |
| BIG STONE STATE BANK | BK000028 | 1954-03-16 | Inactive | — |
| Big Stone Tabor Church | CH252545 | 2023-06-09 | Active | Big Stone City |
| Big Stone Therapies Albert Lea, LLC | DL202136 | 2021-05-03 | Active | BIG STONE CITY |
| Big Stone Therapies Alexandria, LLC | DL169692 | 2019-09-04 | Inactive | BIG STONE CITY |
| Big Stone Therapies Baxter, LLC | DL023173 | 2010-12-14 | Active | BIG STONE CITY |
| Big Stone Therapies Montague, LLC | DL140540 | 2017-12-04 | Active | BIG STONE CITY |
| Big Stone Therapies Watertown, LLC | DL023174 | 2010-12-14 | Active | BIG STONE CITY |
| BIG STONE THERAPIES, INC. | DB029512 | 1990-05-21 | Inactive | BIG STONE CITY |
| BIG STONE THERAPIES, INC. | DB056543 | 2011-12-23 | Active | BIG STONE CITY |
| Big Stone Townhomes, LLC | DL040734 | 2014-10-20 | Dissolved | BIG STONE CITY |
| Big Stone Trading Company, Inc. | DB060736 | 2016-03-08 | Dissolved | CORONA |
| BIG STONE WILDERNESS, L.L.C. | DL008330 | 2004-12-15 | Dissolved | — |
| BIG STONE-GRANT INDUSTRIAL DEVELOPMENT AND TRANSPORTATION, L.L.C. | DL000286 | 1994-11-21 | Active | BIG STONE CITY |
| Big Strat LLC | DL242106 | 2023-01-12 | Dissolved | White Lake |
| Big Sun Acupuncture, LLC | DL047763 | 2016-03-28 | Active | Rapid City |
| Big Sur Soul LLC | DL128052 | 2016-11-23 | Active | MIAMI |
| BIG SUR WATERBEDS, INC. | FB010911 | 1986-06-06 | Inactive | DENVER |
| Big T Enterprises LLC | DL242331 | 2023-01-17 | Dissolved | Sioux Falls |
| Big T Express L.L.C. | DL043136 | 2015-04-06 | Dissolved | RAPID CITY |
| BIG T FIREARMS, LLC | DL028828 | 2012-07-16 | Inactive | BOX ELDER |
| BIG T SALES LLC | DL006821 | 2004-01-15 | Inactive | LENNOX |
| BIG T. MINES CORPORATION | DB019555 | 1980-03-14 | Active | — |
| BIG TABLE, LLC | DL005727 | 2003-04-03 | Active | RAPID CITY |
| BIG TALK, INC. | DB047433 | 2003-10-20 | Active | Sisseton |
| Big Tech Innovations, LLC | DL273700 | 2024-04-25 | Dissolved | Conyers |
| BIG TEN ELECTRONICS, INC. | FB013242 | 1989-12-11 | Inactive | GREAT FALLS |
| BIG TEN INVESTMENTS | GP000044 | 2009-01-26 | Inactive | SIOUX FALLS |
| BIG TEX TRAILER MANUFACTURING, INC. | FB039491 | 2016-08-08 | Inactive | MT PLEASANT |
| BIG TEX TRAILER MANUFACTURING, LLC | FL175092 | 2019-12-31 | Active | MOUNT PLEASANT |
| BIG TEX TRAILER WORLD, INC. | FB039492 | 2016-08-08 | Inactive | MT PLEASANT |
| BIG THOE INVESTMENTS, INC. | DB048816 | 2004-10-15 | Dissolved | SIOUX FALLS |
| BIG THREE CORPORATION | 19650072D | 1965-11-24 | Canceled | — |
| BIG THUNDER GOLD MINE, INC. | DB018924 | 1979-08-02 | Inactive | — |
| Big Thunder Properties, LLC | DL177917 | 2020-02-26 | Active | Watertown |
| Big Thunder Sports Performance, LLC | DL277431 | 2024-06-20 | Active | Tea |
| BIG THUNDER, INC. | DB034251 | 1994-04-06 | Active | KEYSTONE |
| BIG TICKET PROPERTIES, LLC | DL269635 | 2024-02-29 | Active | MITCHELL |
| Big Timber Builders LLC | DL307138 | 2025-08-15 | Active | Nisland |
| BIG Timber Company SD LLC | DL236092 | 2022-10-04 | Dissolved | Sioux Falls |
| Big Timber Construction LLC | DL265136 | 2023-12-26 | Active | Plankinton |
| Big Timber Holdings, LLC | DL242957 | 2023-01-25 | Active | Rapid City |
| Big Timber Properties LLC | DL131439 | 2017-03-10 | Active | SPEARFISH |
| BIG TIME INVESTMENTS, L.L.C. | DL025254 | 2011-07-21 | Active | Hartford |
| Big Time LLC | DL163614 | 2019-04-24 | Dissolved | Brandon |
| BIG TIME PIZZA INC. | DB047569 | 2003-11-25 | Dissolved | Hot Springs |
| BIG TIME PIZZA RC, LLC | DL026134 | 2011-11-02 | Dissolved | KEYSTONE |
| BIG TIME PRODUCTIONS, INC. | DB039969 | 1998-04-23 | Inactive | — |
| Big Time Properties LLC | FL283084 | 2024-09-16 | Active | Gillette |
| BIG TIME STORAGE OF IOWA, LLC | DL250678 | 2023-05-12 | Suspended | Sioux Falls |
| BIG TIME STORAGE, LLC | DL045421 | 2015-10-07 | Active | Sioux Falls |
| Big Top Tent Rentals, LLC | DL044197 | 2015-06-30 | Active | LUVERNE |
| BIG TRACKS OUTDOORS, LLC | DL202249 | 2021-05-03 | Dissolved | SIOUX FALLS |
| Big Truck Leasing, LLC | DL035954 | 2013-11-12 | Active | CHAMBERLAIN |
| BIG TRUCK PARTS, LLC | DL041567 | 2014-12-29 | Active | SIOUX FALLS |
| BIG TRUCK RENTAL, LLC | FL273890 | 2024-04-29 | Active | Tampa |
| BIG TRUCKS, INC. | DB049959 | 2005-07-20 | Dissolved | SIOUX FALLS |
| BIG TRUTH MINISTRIES, INC. | NS247142 | 2023-03-23 | Active | Banning |
| Big Unit, LLC | DL185992 | 2020-08-13 | Active | South Sioux City |
| BIG UP LLC | DL286841 | 2024-11-12 | Dissolved | Spearfish |
| BIG VALLEY TRAIL ROAD DISTRICT | DM009511 | 2002-08-19 | Active | CUSTER |
| BIG VALLEY URETHANE, INC. | DB041060 | 1999-02-08 | Inactive | — |
| BIG VIGS STRUCTURE, LLC | DL005746 | 2003-04-10 | Active | SPEARFISH |
| Big W Trucking LLC | DL298445 | 2025-04-21 | Suspended | rapid city |
| Big Water UAV Solutions LLC | FL277680 | 2024-06-25 | Active | Hot Springs |
| Big Watt Dakota Center LLC | DL278096 | 2024-07-01 | Active | Pierre |
| Big Watt Digital SD LLC | DL219600 | 2022-02-01 | Active | Pierre |
| BIG WAVE CONSTRUCTION, INC. | FB028877 | 2004-08-31 | Revoked | MISSOULA |
| BIG WEST ASSEMBLY LIMITED PARTNERSHIP | DP000037 | 1988-03-03 | Active | ABERDEEN |
| BIG WEST EXPORTS, INC. | DB027955 | 1988-12-23 | Inactive | — |
| BIG WEST HOLDING COMPANY, INC. | DB030582 | 1991-04-24 | Inactive | — |
| BIG WEST SOY, INC. | DB028234 | 1989-03-22 | Inactive | — |
| BIG WEST, INC. | FB010372 | 1985-08-12 | Inactive | ABERDEEN |
| BIG WEST, INC. | DB025694 | 1986-09-13 | Inactive | — |
| BIG WHISKEY BBQ LLC | DL025383 | 2011-08-08 | Dissolved | Sturgis |
| Big Wiener Energy LLC | DL303029 | 2025-07-31 | Active | Sioux Falls |
| Big Win LLC | DL313701 | 2025-11-14 | Active | Rapid City |