| Dubuque Property, LLC | DL046350 | 2015-12-21 | Dissolved | SIOUX FALLS |
| DUBUQUE SUPER 8 MOTEL, INC. | DB025083 | 1986-01-29 | Inactive | ABERDEEN |
| DUBUQUE WEST HOSPITALITY, L.L.C. | DL016473 | 2008-05-13 | Inactive | ABERDEEN |
| DUBYM TRUCKING, LLC | DL016610 | 2008-05-30 | Inactive | BLACK HAWK |
| DUCA, INC. (SIOUX FALLS) | DB022260 | 1983-03-28 | Inactive | — |
| DUCAB, LLC | DL002301 | 1999-06-03 | Inactive | — |
| DUCH FAMILY LIMITED PARTNERSHIP | DP002240 | 2011-08-23 | Active | ABERDEEN |
| DUCH MANAGEMENT, LLC | DL025466 | 2011-08-18 | Dissolved | ABERDEEN |
| DUCH REAL ESTATE LIMITED PARTNERSHIP | DP001412 | 2003-01-27 | Inactive | — |
| DUCHARME BROS., INC. | 19670065D | 1967-06-15 | Canceled | — |
| DUCHARME, MCMILLEN & ASSOCIATES, INC. | FB017491 | 1994-12-08 | Active | FORT WAYNE |
| DUCHENEAUX FRANK D. CHAPEL AND MUSEUM CORPORATION | NS007027 | 1980-10-31 | Dissolved | GETTYSBURG |
| DUCHENEAUX LAND & CATTLE COMPANY, INC. | DB022197 | 1983-03-07 | Inactive | — |
| DUCHESS II, INC. | 19670066D | 1967-08-08 | Suspended | — |
| Duchess Investments LLC | DL244962 | 2023-02-22 | Active | Sioux Falls |
| DUCK BAR CATTLE CO. | DF012491 | 1974-09-04 | Dissolved | — |
| Duck Creek Cattle Company, LLC | FL321927 | 2026-02-26 | Active | La Crosse |
| DUCK CREEK GUEST RANCH, LTD. | DB026258 | 1987-04-03 | Inactive | — |
| DUCK CREEK LUTHERAN CHURCH OF LODGEPOLE | CH002213 | 1931-06-05 | Dissolved | HETTINGER |
| Duck Creek Ranch LLC | DL287756 | 2024-11-25 | Active | Watertown |
| DUCK CREEK RANCH, LLP | DR000943 | 2005-08-29 | Dissolved | RAPID CITY |
| DUCK CREEK RANCH, LTD. | DB032929 | 1993-04-16 | Inactive | — |
| DUCK CREEK TECHNOLOGIES LLC | FL044075 | 2016-02-01 | Active | Boston |
| Duck Customs, LLC | DL173952 | 2019-12-06 | Active | Hudson |
| Duck Duck Luce Photography LLC | DL192348 | 2020-12-07 | Dissolved | RAPID CITY |
| DUCK Enterprises, LLC | DL330736 | 2026-06-09 | Active | Herrick |
| DUCK FEATHERS, LLC | DL239985 | 2022-12-08 | Active | Rapid City |
| Duck Hook, LLC | DL043447 | 2015-05-21 | Active | WATERTOWN |
| Duck in Waddle Out Bar, LLC | DL141003 | 2017-12-13 | Active | LAKE ANDES |
| Duck it Media LLC | DL298963 | 2025-04-28 | Suspended | Rapid City |
| DUCK POND CORPORATION | 19550034D | 1955-02-04 | Active | — |
| Ducker Farms LLC | DL232024 | 2022-08-04 | Active | Henry |
| Ducker Ventures LLC | DL269782 | 2024-03-02 | Active | Henry |
| Duckfin, LLC | DL236945 | 2022-10-18 | Active | Rapid City |
| Duckota Enterprises, Inc. | DB247463 | 2023-03-30 | Active | Sioux Falls |
| DUCKOTA, L.L.C. | DL014486 | 2007-08-17 | Active | Wentworth |
| Ducks on the Pond, LLC | DL281243 | 2024-08-16 | Active | — |
| DUCKS UNLIMITED, INC. | FN009541 | 1984-05-04 | Active | Memphis |
| Duckworth Estates LLC | DL206855 | 2021-07-20 | Dissolved | Sioux Falls |
| Ducky Recovery LLC | FL162221 | 2019-03-26 | Inactive | Harahan |
| DUCKY'S MARINE, INC. | DB043181 | 2000-08-30 | Inactive | — |
| DUCO Mining, LLC | DL039982 | 2014-08-21 | Active | RAPID CITY |
| Duct Pro Cleaning, LLC | DL128609 | 2016-12-09 | Dissolved | SIOUX FALLS |
| DUCTWORK MD L.L.C. | DL018317 | 2009-02-18 | Dissolved | SIOUX FALLS |
| DUCTZ INTERNATIONAL, L.L.C. | FL003707 | 2007-08-28 | Inactive | BIRMINGHAM |
| DUCTZ NORTH AMERICA LLC | FL003701 | 2007-08-23 | Active | Birmingham |
| DUDA HOLDINGS, L.L.C. | DL015013 | 2007-11-07 | Dissolved | RAPID CITY |
| DUDA, INC. | DB036931 | 1996-03-14 | Inactive | — |
| DUDDING FINANCIAL, L.L.C. | DL050225 | 2016-10-07 | Active | Amarillo |
| DUDE LLC | DL009630 | 2005-08-03 | Dissolved | RAPID CITY |
| Dude LLC | DL320903 | 2026-02-16 | Active | Rapid City |
| Dude Tactical, LLC | DL301330 | 2025-05-29 | Active | Sioux Falls |
| Dude Ventures LLC | DL193402 | 2020-12-22 | Active | Hill City |
| DUDEK Inc. | FB231076 | 2022-07-21 | Active | ENCINITAS |
| Dudley and Veronica | GP152131 | 2018-08-06 | Inactive | ISABEL |
| Dudley Developments LLC | DL233704 | 2022-08-30 | Active | NAPLES |
| DUDLEY FAMILY LIMITED PARTNERSHIP NO. 1 | DP000841 | 1998-03-25 | Dissolved | — |
| DUDLEY FAMILY LIMITED PARTNERSHIP NO. 2 | DP000868 | 1998-06-26 | Dissolved | — |
| Dudley Land Company | FB225236 | 2022-04-19 | Active | Oklahoma City |
| DUDLEY LAUNDRY COMPANY | FB008122 | 1981-12-23 | Active | NORFOLK |
| DUDLEY PRODUCTS, INC. | FB019600 | 1996-12-09 | Revoked | KERNERSVILLE |
| DUDLEY RESOURCES L.L.C. | DL020536 | 2010-01-05 | Inactive | HARROLD |
| DUDLEY'S DO RITE INVESTMENTS LLC | DL016134 | 2008-04-02 | Inactive | — |
| DUDLEY'S INC. | DB002350 | 1961-07-07 | Inactive | — |
| DUDLEY, LLC | DL013218 | 2007-02-14 | Active | STURGIS |
| DUDS 'N SUDS FRAN. CORP. | FB010376 | 1985-08-15 | Revoked | AMES |
| DUE SORRELLAS, LLC | DL031616 | 2013-03-13 | Dissolved | RAPID CITY |
| Due West Aviation LLC | DL221310 | 2022-02-23 | Active | BRANDON |
| DUECKER ENTERPRISES LLC | DL023710 | 2011-02-07 | Dissolved | TWIN LAKES |
| DUECO, INC. | FB018697 | 1996-02-26 | Inactive | WAUKESHA |
| Duehr Mediation and Family Law, P.C. | DB286302 | 2025-01-01 | Active | Sioux Falls |
| DUEL Properties LLC | DL044371 | 2015-07-15 | Active | SIOUX FALLS |
| Dueling Dakota Outfitters LLC | DL131494 | 2017-03-14 | Active | LUDLOW |
| Dueling Dakota Septic LLC | FL275545 | 2024-05-22 | Active | BOWMAN |
| Duemelands Commercial Inc. | FB170278 | 2019-09-17 | Active | Bismarck |
| DUEMELANDS COMMERCIAL LLLP | FP000824 | 2012-11-05 | Active | BISMARCK |
| Duenas Framing LLC | DL223620 | 2022-03-28 | Dissolved | Sioux Falls |
| Duende Ink, LLC | DL252736 | 2023-06-13 | Active | RAPID CITY |
| DUENOW CORPORATION OF NEBRASKA, INC. | FB007919 | 1981-09-04 | Revoked | LAKEVILLE |
| DUENOW FOODS, INC. | FB003784 | 1971-05-18 | Inactive | LAKEVILLE |
| DUENWALD BROTHERS, INC. | DF020357 | 1981-01-21 | Active | Hoven |
| Duenwald Bus LLC | DL037880 | 2014-03-17 | Dissolved | CLARK |
| Duenwald Corporation | DB059375 | 2014-09-11 | Active | SIOUX FALLS |
| DUENWALD TRANSPORTATION LLC | DL028074 | 2012-05-03 | Active | CLARK |
| DUERR, PLILEY, THORSHEIM DEVELOPMENT, INC. | DB015536 | 1978-08-14 | Inactive | — |
| DUERRE EXCAVATION, INC. | DB049908 | 2005-06-28 | Active | BRISTOL |
| DUERRE FAMILY, L.L.P. | DR000325 | 1998-12-16 | Revoked | — |
| DUERRE FARMS, INC. | DF035156 | 1994-12-23 | Active | BRISTOL |
| Duet LLC | DL245084 | 2023-02-23 | Suspended | Watertown |
| Duet Properties South Dakota, LLC | DL137963 | 2017-10-04 | Inactive | Sioux Falls |
| DUEX ENVIRONMENTAL SERVICES, INC. | DB042564 | 2000-03-15 | Inactive | — |
| Duey D. Creative LLC. | DL222971 | 2022-03-17 | Active | Sioux Falls |
| DUFAULT LUMBER COMPANY | 19520019D | 1952-04-03 | Active | — |
| DUFF DENS, LLC | DL219421 | 2022-01-28 | Active | MITCHELL |
| Duff transport LLC | DL159509 | 2019-01-28 | Dissolved | Redfield |
| DUFF'S WRLD L.L.C. | DL219579 | 2022-01-31 | Dissolved | RAPID CITY |
| Duffer Design LTD. | DL220781 | 2022-02-16 | Dissolved | DeSmet |
| DUFFER DRIVE ROAD DISTRICT | DM009508 | 2002-07-29 | Active | RAPID CITY |
| Duffey's Commercial Kitchen Repair L.L.C. | DL049927 | 2016-09-13 | Active | SIOUX FALLS |
| DUFFIELD CONSTRUCTION, INC. | DB032426 | 1992-12-17 | Active | — |
| Duffield Construction, LLC | DL043552 | 1992-12-17 | Inactive | DENVER |
| Duffney Refrigeration, Inc. | FB294562 | 2025-03-03 | Active | Watertown |
| DUFFY - WESCOTT POST NO. 85, THE AMERICAN LEGION | 19340000ND | 1934-04-07 | Dissolved | — |
| DUFFY HOLDINGS LLC | DL230817 | 2022-07-19 | Active | RAPID CITY |
| Duffy Law Firm, Prof. LLC | DL131691 | 2017-03-21 | Active | RAPID CITY |
| DUFFY PROPERTY MANAGEMENT, LLC | DL023948 | 2011-03-03 | Active | Worthing |
| Duffy Transport llc | DL331212 | 2026-06-15 | Active | Worthing |
| Duffy Trucking, LLC | DL196000 | 2021-02-03 | Dissolved | OLDHAM |
| DUFFY-HERZOG MANAGEMENT, INC. | DB038510 | 1997-04-29 | Inactive | — |
| DUFRAIN FARMS, INC. | DB127812 | 2016-11-14 | Dissolved | GEDDES |
| DUFRAIN FARMS, LLC | DL173174 | 2019-11-19 | Active | GEDDES |
| DUFRAIN PROPERTIES, LLC | DL047251 | 2016-02-24 | Active | GEDDES |
| Duft LLC | DL145654 | 2018-03-20 | Inactive | Rapid City |
| Dugal Holdings LLC | DL199547 | 2021-03-25 | Active | Woodside |
| DUGAN SALES & SERVICE | DB003183 | 1963-04-29 | Dissolved | WATERTOWN |
| DUGDALES, INC. | DB007296 | 1968-06-26 | Inactive | — |
| DUGGER ROAD DISTRICT | DM009831 | 2013-08-13 | Active | RAPID CITY |
| dugout bar/grill, LLC | DL041669 | 2015-01-07 | Dissolved | DE SMET |
| DUGOUT LOUNGE, INC. | DB040614 | 1998-10-19 | Inactive | — |
| Dugout, LLC | DL042903 | 2015-04-14 | Active | SIOUX FALLS |
| Dugz Garage LLC | DL230287 | 2022-07-10 | Inactive | Lead |
| DUHADWAY, KENDALL & ASSOCIATES, INC. | FB038414 | 2015-03-03 | Inactive | GRAND RAPIDS |
| Duhaime Farms, LLC | DL144431 | 2018-02-23 | Active | Dakota Dunes |
| DUHAMEL BROADCASTING ENTERPRISES | DB002316 | 1936-10-01 | Active | RAPID CITY |
| DUHAMEL CABLE PARTNERS LIMITED PARTNERSHIP | DP000342 | 1993-07-30 | Active | — |
| DUHAMEL CABLE, INC. | DB022352 | 1983-04-28 | Dissolved | NEW YORK |
| DUHAMEL COMPANY | DB002405 | 1907-05-07 | Dissolved | RAPID CITY |
| DUHAMEL INVESTMENTS, INC. | DB022046 | 1982-12-29 | Inactive | — |
| DUININCK BROS. & GILCHRIST LAND CO. | DB022832 | 1983-10-25 | Active | RAPID CITY |
| DUININCK, INC. | FB012920 | 1989-08-21 | Active | PRINSBURG |
| DUIR Corp | DB151231 | 2018-07-18 | Dissolved | MIAMI |
| DuJea Acres, LLC | DL303676 | 2025-07-01 | Active | Tyler |
| Dukal, LLC | FL211428 | 2021-10-01 | Active | Ronkonkoma |
| DUKE ADVISORS, LLC | DL021344 | 2010-04-26 | Active | SCOTTSDALE |
| DUKE AERIAL, INC. | FB035454 | 2011-10-03 | Active | ATLANTIC |
| Duke and Lo L.L.C. | DL037164 | 2014-01-24 | Dissolved | SIOUX FALLS |
| DUKE APARTMENTS, LLC | DL009018 | 2005-04-14 | Active | VERMILLION |
| DUKE BOSTON INSURANCE AGENCY, INC. | DB043330 | 2000-10-19 | Active | BELLE FOURCHE |
| Duke Boys, LLC | DL151645 | 2018-07-27 | Active | North Sioux City |
| DUKE DUPREE & ASSOCIATES, INC. | DB023468 | 1984-05-23 | Inactive | — |
| DUKE ENERGY COMMERCIAL ENTERPRISES, INC. | FB036282 | 2012-10-10 | Active | CINCINNATI |
| DUKE ENERGY MERCHANTS, LLC | FL000707 | 2000-05-24 | Inactive | HOUSTON |
| DUKE ENERGY TRANSPORT AND TRADING COMPANY | FB021926 | 1998-10-23 | Revoked | HOUSTON |
| Duke Enterprises, L.L.C. | DL130406 | 2017-02-06 | Active | Mitchell |
| Duke Financial, LLC | DL187652 | 2020-09-14 | Dissolved | Rapid City |
| DUKE HOLDINGS, LLC | DL154493 | 2018-09-27 | Dissolved | Newport Beach |
| Duke Holdings, LLC | DL295350 | 2025-03-12 | Active | Huron |
| Duke Outdoors LLC | DL246305 | 2023-03-13 | Active | Elkton |
| DUKE TUFTY COMPANY | DB005440 | 1947-02-25 | Inactive | — |
| Duke's Bees LLC | DL183789 | 2020-06-29 | Active | Yankton |
| DUKE'S CUSTOM CYCLES, INC. | DB036821 | 1996-02-08 | Dissolved | — |
| DUKE'S ENTERPRISES, INC. | DB002998 | 1962-12-12 | Inactive | VOLGA |
| DUKE'S LLC | DL028196 | 2012-05-16 | Inactive | SIOUX FALLS |
| DUKE'S PAINT & BODY LLC | DL311401 | 2025-10-14 | Active | SIOUX FALLS |
| DUKE'S ROOT CONTROL, INC. | FB026503 | 2002-08-08 | Active | Elgin |
| DUKE'S SALES & SERVICE, INC. | FB018801 | 1996-03-29 | Inactive | Syracuse |
| Dukeontheloose Properties LLC | DL180540 | 2020-04-27 | Active | Beresford |
| Dukes Steel Construction LLC | DL152070 | 2018-08-04 | Dissolved | Watertown |
| Dukey Poo Services, LLC | DL269601 | 2024-03-01 | Dissolved | Huron |
| Dulac Dental SD LLC | DL283584 | 2024-09-22 | Active | Leesburg |
| DULANEY HOLDINGS, LLC | DL032965 | 2013-06-06 | Dissolved | BRANDON |
| DULANEY, JOHNSTON & PRIEST, A CORPORATION | FB015674 | 1992-11-19 | Inactive | WICHITA |
| DULAROSA 264 LLC | DL213146 | 2021-10-27 | Active | Sioux Falls |
| Dulce Black Hills LLC | DL314441 | 2025-11-24 | Active | Watertown |
| DULCE, INC. | DB055678 | 2010-11-05 | Active | HILL CITY |
| DULEY-BOLWAR & ASSOCIATES, INC. | FB029466 | 2005-03-18 | Revoked | Scottsdale |
| DULING LAND & CATTLE, INC. | DB174652 | 2019-12-19 | Dissolved | Jefferson |
| DULING OPTICAL CO. OF SOUTH DAKOTA | FB002029 | 1963-03-27 | Revoked | LOUISVILLE |
| DULING OPTICAL CO. OF SOUTH DAKOTA | FB010951 | 1986-06-30 | Revoked | LOUISVILLE |
| DULING RANCH, INC. | DF018997 | 1979-08-31 | Dissolved | GREGORY |
| DULING SONS, INC. | DF043064 | 2000-07-21 | Dissolved | Omaha |
| DULITZ'S INCORPORATED | DF014956 | 1978-01-03 | Dissolved | PALO ALTO |
| DULLERUD CONSTRUCTION, INC. | DB044365 | 2001-07-25 | Inactive | — |
| DULLERUD OUTDOORS INC. | DB052593 | 2007-07-19 | Inactive | — |
| DULLERUD PROPERTIES, L.L.C. | DL023763 | 2011-02-11 | Active | Harrisburg |
| DULUTH BK, INC. | DB057656 | 2013-03-21 | Dissolved | SIOUX FALLS |
| DULUTH ESTATES, LLC | DL006148 | 2003-08-11 | Inactive | — |
| DULUTH HOLDINGS INC. | FB038769 | 2015-08-14 | Active | Mount Horeb |
| DULUTH KING I, INC. | DB027245 | 1988-03-28 | Dissolved | — |
| DULUTH KING II, INC. | DB028148 | 1989-02-22 | Inactive | — |
| DULUTH KING, INC. | DB025018 | 1986-01-09 | Inactive | — |
| DULUTH LIMITED PARTNERSHIP | DP000031 | 1988-02-09 | Active | — |
| DULUTH LIMITED PARTNERSHIP II | DP000186 | 1990-11-29 | Active | — |
| DULUTH LIMITED PARTNERSHIP III | DP000237 | 1991-10-18 | Active | — |
| DULUTH LIMITED PARTNERSHIP V | DP000238 | 1991-10-21 | Active | — |
| Duluth Lodging Group, LLC | DL046592 | 2016-01-07 | Inactive | ABERDEEN |
| DULUTH RETIREMENT, L.L.C. | DL003558 | 2001-02-05 | Dissolved | — |
| Duma Concrete Service, LLC | DL222539 | 2022-03-11 | Inactive | Sioux Falls |
| DUMAE INSURANCE AGENCY, INC. | DB035886 | 1995-05-30 | Inactive | — |
| DuMarce & Max Construction LLC | DL277126 | 2024-06-17 | Dissolved | Sisseton |
| DUMAS, INC. | 19590056D | 1959-08-05 | Dissolved | — |
| DUMB HOLDINGS, LLC. | DL015737 | 2008-02-07 | Active | SIOUX FALLS |
| DUMDEI FLOORING, INC. | DB054774 | 2009-09-04 | Dissolved | SIOUX FALLS |
| DUMFRIES SUPER 8 MOTEL, INC. | DB027407 | 1988-05-26 | Dissolved | — |
| DUMKE LAND, L.L.C. | DL006033 | 2003-07-07 | Active | Lake Madison |
| DUMMEN NA, INC. | FB036281 | 2012-10-09 | Active | COLUMBUS |
| DUMMERMUTH, INC. | DB048119 | 2004-04-07 | Inactive | — |
| Dumont Boutique & Company, LLC | DL187341 | 2020-09-08 | Dissolved | Woonsocket |
| DUMONT BUILDING, INC. | DB046968 | 2003-06-09 | Active | LEAD |
| Dumont Holdings, LLC | DL235000 | 2022-09-20 | Active | Yankton |