| DHS DRILLING COMPANY | FB036426 | 2012-12-05 | Inactive | CASPER |
| DHS Holdings, Inc. | DB169990 | 2019-09-10 | Dissolved | Vermillian |
| DHS Lodging, LLC | DL206507 | 2021-07-15 | Active | TYNDALL |
| DHS PROPERTIES, LLC | DL012614 | 2006-12-04 | Active | BROOKINGS |
| DHS, L.L.C. | DL048576 | 2016-05-20 | Active | Beresford |
| DHT INVESTMENTS, INC. | FB012230 | 1988-08-01 | Revoked | DES MOINES |
| DHT RECOVERY, LLC | DL010509 | 2006-01-09 | Dissolved | SIOUX FALLS |
| DHT Sertoma Rentals LLC | DL276818 | 2024-06-13 | Active | Sioux Falls |
| DHT TAX SERVICE, LLC | DL006715 | 2003-12-26 | Inactive | — |
| DHT TAX, INC. | DB046172 | 2002-12-11 | Inactive | — |
| DHW Holdings LLC | DL194468 | 2021-01-11 | Active | Sioux Falls |
| DHW LEASING, L.L.C. | DL011651 | 2006-07-03 | Dissolved | SIOUX FALLS |
| DHY Motorsports LLC | DL326417 | 2026-04-18 | Active | Boerne |
| DHYB, LIMITED PARTNERSHIP | DP001274 | 2001-08-09 | Active | — |
| DHZ VETPATH LLC | DL031144 | 2013-01-30 | Active | BROOKINGS |
| DI Build, LLC | FL310697 | 2025-10-02 | Active | Overland Park |
| Di Laffin LLC | DL282167 | 2024-09-02 | Active | Rapid City |
| Di Leonardo Family Holdings LLC | DL215719 | 2021-12-05 | Dissolved | Arlington |
| DI Properties, LLC | DL251302 | 2023-05-22 | Active | Sioux Falls |
| DI XXI LLC | DL201641 | 2021-04-25 | Dissolved | Watertown |
| Di's Glam Boutique LLC. | DL248092 | 2023-04-05 | Dissolved | Rapid City |
| Di-Ce Farms, LLC | DL325334 | 2026-04-07 | Active | Wynot |
| DIA, LLC | DL145205 | 2018-03-12 | Active | Brookings |
| DIABAND L.L.C. | DL032827 | 2013-06-14 | Dissolved | Brookings |
| DIABETES & ENDOCRINE CLINICS OF THE SIOUX EMPIRE, LTD. | DB029744 | 1990-08-15 | Dissolved | SIOUX FALLS |
| DIABETES MANAGEMENT AND SUPPLIES, L.L.C. | FL230174 | 2022-07-07 | Active | Conshohocken |
| DIABETES SUPPLY CENTER OF THE MIDLANDS, LLC | FL207944 | 2021-08-09 | Active | Conshohocken |
| DIABETES, INCORPORATED | NS011027 | 1998-05-05 | Active | Whitewood |
| Diabetic Acquisition, LLC | DL039485 | 2014-07-07 | Inactive | Sioux Falls |
| DIABETIC ADULT DOG SERVICES, LLC | DL023576 | 2011-01-21 | Dissolved | BATH |
| DIABETIC DME SUPPLIES, LLC | FL006146 | 2012-02-21 | Inactive | CAMPBELLSVILLE |
| Diabetic Equipment and Supplies, LLC | FL318658 | 2026-01-21 | Active | Des Moines |
| Diace Group, LLC | DL158533 | 2019-01-07 | Dissolved | Plantation |
| DIADEM CAPITAL LLC | DL034768 | 2013-08-19 | Inactive | NEW YORK |
| DIAGNOSTIC DIMENSIONS, LLC | DL044067 | 2015-06-22 | Dissolved | ATKINSON |
| DIAGNOSTIC ENGINEERING INC. | DB036338 | 1995-10-16 | Dissolved | BRANDON |
| DIAGNOSTIC IMAGING SYSTEMS, INC. | DB023169 | 1984-02-22 | Active | RAPID CITY |
| DIAGNOSTIC MEDICAL IMAGING, P.C. | DB027505 | 1988-06-27 | Dissolved | — |
| DIAGNOSTIC RADIOLOGISTS, LTD. | DB023858 | 1984-10-23 | Dissolved | — |
| DIAGNOSTIC RADIOLOGY ASSOCIATES, PROF. L.L.C. | DL002353 | 1999-07-08 | Dissolved | WATERTOWN |
| DIAGNOSTIC RADIOLOGY SERVICES, PROF. LLC | DL017310 | 2008-09-08 | Inactive | YANKTON |
| DIAGNOSTIC RESEARCH INSTITUTE | NS012396 | 2003-09-30 | Inactive | WENTWORTH |
| DIAGNOSTIC ROBOTICS USA INC. | FB256626 | 2023-08-14 | Inactive | BOSTON |
| DIAGNOSTIC TECHNICAL SERVICES, LLC | DL001847 | 1998-09-11 | Inactive | SIOUX FALLS |
| DIAGNOSTIC ULTRASOUND SERVICES, INC. | FB032363 | 2008-01-28 | Inactive | SANBORN |
| DIAGNOSTIC VIEW, P.C. | FB023036 | 1999-10-12 | Inactive | SIOUX FALLS |
| Diagnostica Stago Inc. | FB314125 | 2025-11-20 | Active | Parsippany |
| Diak Architects LLC | DL280247 | 2024-08-01 | Active | Norman |
| Diakonia Incorporated | NS246696 | 2023-03-17 | Active | Dakota Dunes |
| DIAL & SAVE OF SOUTH DAKOTA, INC. | FB017539 | 1994-12-23 | Inactive | CHANTILLY |
| Dial 800 Telecom LLC | FL237508 | 2022-10-27 | Active | Delray Beach |
| DIAL DISCOUNT - USA, INC. | DB034667 | 1994-08-01 | Inactive | — |
| DIAL DISCOUNT OF SOUTH DAKOTA, INC. | DB035082 | 1994-12-12 | Inactive | — |
| Dial Edge Telecom LLC | DL281719 | 2024-08-26 | Dissolved | Watertown |
| DIAL ENTERPRISES CORP. | FB007420 | 1980-11-18 | Revoked | OMAHA |
| DIAL ENTERPRISES CORP. | FB013237 | 1989-12-08 | Inactive | OMAHA |
| Dial H Media Inc | DB231467 | 2022-07-27 | Dissolved | KENNEBEC |
| Dial H Media LLC | DL257930 | 2023-09-01 | Active | Kennebec |
| DIAL ONE OF SOUTH DAKOTA, INC. | DB034377 | 1994-05-11 | Dissolved | — |
| DIAL REALTY BUILDERS, INC. | FB021594 | 1998-07-23 | Inactive | OMAHA |
| DIAL SAVERS, INC. | DB036484 | 1995-12-01 | Dissolved | — |
| Dial Zero Tactical LLC | DL167942 | 2019-07-28 | Dissolved | Sioux Falls |
| DIAL-A-HAUL, INC. | DB036491 | 1995-12-04 | Active | Westport |
| DIAL-A-MATTRESS INTERNATIONAL LTD. | FB014824 | 1991-09-25 | Revoked | NEW YORK |
| DIAL-A-MOVE, INC. | DB043639 | 2001-01-05 | Active | ABERDEEN |
| DIAL-AROUND TELECOM, INC. | FB027974 | 2003-12-05 | Revoked | GRAPEVINE |
| DIAL-NET, INC. | DB024159 | 1985-02-04 | Inactive | — |
| DIAL-NET, INC. | DB025958 | 1986-12-24 | Inactive | — |
| DIAL-NET, INC. | DB032391 | 1992-12-11 | Inactive | — |
| DIALAMERICA INSURANCE SERVICES, L.L.C. | FL001250 | 2002-04-09 | Inactive | MAHWAH |
| DIALAROUND ENTERPRISES INC. | FB026626 | 2002-09-26 | Revoked | ATLANTA |
| DialCare Dental Services, PLLC | FL183033 | 2020-06-15 | Active | Frisco |
| DialCare Group, PLLC | FL133448 | 2017-05-15 | Active | FRISCO |
| DialCare Mental Wellness, PLLC | FL160427 | 2019-02-14 | Active | FRISCO |
| Dialed Designs LLC | DL266082 | 2024-01-09 | Dissolved | Sioux Falls |
| Dialed In Nutrition, LLC | DL133607 | 2017-05-19 | Active | Lennox |
| DialHawk Holdings LLC | DL296456 | 2025-03-26 | Active | Sioux Falls |
| DIALOC DISTRIBUTOR, INC. | FB013691 | 1990-07-11 | Revoked | YANKTON |
| Dialogue, LLC | DL050339 | 2016-10-17 | Active | Spearfish |
| DialogueDirect, Inc. | FB150088 | 2018-06-22 | Revoked | New York |
| DIALPAD, INC. | FB129960 | 2017-01-25 | Active | San Ramon |
| DIALTONE & MORE, INC. | FB034073 | 2010-01-19 | Revoked | MELBOURNE |
| Dialysis Clinic, Inc. | FN276085 | 2024-05-31 | Active | Nashville |
| Dialysis JV, L.L.C. | DL161733 | 2019-03-15 | Active | Dakota Dunes |
| DIALYSIS MANAGEMENT GROUP, LLC | DL006596 | 2003-12-05 | Active | RAPID CITY |
| Diama-Shield, LLC | FL268587 | 2024-02-15 | Active | Troy |
| DIAMA-SHIELD, LLC | FL004747 | 2009-09-11 | Revoked | TROY |
| Diamante Fitness LLC | DL276643 | 2024-06-09 | Active | Rapid City |
| DiaMedical USA Equipment, LLC | FL334489 | 2026-07-23 | Active | Monaca |
| Diaminda Trucking LLC | DL250177 | 2023-05-05 | Suspended | Sioux Falls |
| DIAMOND "D" DEVELOPERS, INC. | DB032355 | 1992-11-30 | Dissolved | RAPID CITY |
| DIAMOND "D" DIESEL SERVICE, LLC | DL019731 | 2009-09-11 | Active | PIEDMONT |
| DIAMOND "S" VENTURES (BUSINESS TRUST) | DT034044 | 1994-02-14 | Inactive | — |
| DIAMOND & ASSOCIATES, L.L.C. | DL000810 | 1996-05-01 | Dissolved | — |
| DIAMOND 6, INC. | DB024222 | 1985-02-26 | Inactive | — |
| Diamond 9 Co., LLC | DL254825 | 2023-07-17 | Active | Red Owl |
| Diamond A Boarding, LLC | DL202613 | 2021-05-10 | Active | Pukwana |
| DIAMOND A FARRIER SERVICE LIMITED PARTNERSHIP | DP000928 | 1998-12-02 | Active | — |
| DIAMOND A MANAGEMENT COMPANY, LLC | DL023911 | 2011-03-02 | Inactive | FORT PIERRE |
| Diamond A Ranch, LLC | DL149701 | 2018-06-15 | Dissolved | Gregory |
| DIAMOND A, INC. | DB055462 | 2010-07-01 | Dissolved | SELBY |
| DIAMOND A, LLC | DL020437 | 2009-12-21 | Inactive | SELBY |
| DIAMOND A. CATTLE COMPANY, LLC | DL010842 | 2006-03-08 | Active | Eagle Butte |
| DIAMOND AG SERVICE, LLC | DL025155 | 2011-07-11 | Dissolved | MENNO |
| Diamond Agency & Insurance Services, Inc. | FB176599 | 2020-01-30 | Active | Schaumburg |
| Diamond AL LLC | DL211272 | 2021-09-29 | Active | Murdo |
| Diamond ARcTic Ice, LLC | DL178099 | 2020-03-02 | Active | Avon |
| Diamond Arrow LLC | DL038361 | 2014-04-16 | Active | SPEARFISH |
| DIAMOND AUTO BROKERS LLC | DL027916 | 2012-04-19 | Inactive | PIEDMONT |
| Diamond Automotive Group, LLC | DL273108 | 2024-04-18 | Dissolved | SIOUX FALLS |
| DIAMOND AUTOMOTIVE LLC | DL269363 | 2024-02-27 | Dissolved | HOT SPRINGS |
| DIAMOND AVIATION, INC. | DB007236 | 1968-04-30 | Inactive | — |
| DIAMOND B BONANZA, LIMITED PARTNERSHIP | DP000189 | 1990-11-26 | Active | — |
| Diamond B Cattle Equipment LLC | DL315465 | 2025-12-10 | Active | Virginia Township |
| DIAMOND B COMMUNICATIONS LLC | DL013880 | 2007-05-10 | Active | PIERRE |
| DIAMOND B CONSTRUCTION AND EXCAVATION, INC. | DB025114 | 1986-02-11 | Inactive | — |
| Diamond B Construction, LLC | DL296005 | 2025-03-20 | Active | Gregory |
| DIAMOND B HENNING, LIMITED PARTNERSHIP | DP000188 | 1990-11-26 | Active | — |
| DIAMOND B LAYTON, LIMITED PARTNERSHIP | DP000192 | 1990-11-26 | Active | — |
| DIAMOND B MIAMI FLOOD, LIMITED PARTNERSHIP | DP000191 | 1990-11-26 | Active | — |
| DIAMOND B PARLINN, LIMITED PARTNERSHIP | DP000187 | 1990-11-26 | Active | — |
| DIAMOND B RANCH LLC | DL013128 | 2007-02-02 | Active | RAPID CITY |
| Diamond B Realty, LLC | FL180601 | 2020-04-28 | Revoked | TORRINGTON |
| DIAMOND B TAR II, LIMITED PARTNERSHIP | DP000190 | 1990-11-26 | Active | — |
| Diamond Bar Consulting, LLC | DL297020 | 2025-04-02 | Active | Aberdeen |
| DIAMOND BAR MANUFACTURING, INC. | DB025066 | 1986-01-23 | Dissolved | — |
| DIAMOND BAR S TRANSPORT, LLC | DL329894 | 2026-05-28 | Active | Onida |
| DIAMOND BAR SEVEN, LLC | DL007484 | 2004-06-14 | Active | Sioux Falls |
| Diamond Bee Ranch LLC | DL305754 | 2025-07-28 | Active | Whitewood |
| Diamond Bickel Ranch, Inc. | DB059124 | 2014-05-27 | Active | FIRESTEEL |
| Diamond Bright Detailing L.L.C. | DL263973 | 2023-12-07 | Active | Madison |
| DIAMOND BUILDING PRODUCTS, L.L.C. | DL024019 | 2011-03-09 | Active | Spearfish |
| DIAMOND C CATTLE CO. | DB047826 | 2004-01-21 | Active | ABERDEEN |
| Diamond C Racetrack Services, LLC | DL332258 | 2026-06-29 | Active | Pierre |
| DIAMOND C. DAIRY, L.L.C. | FL003833 | 2007-12-05 | Revoked | CLEVELAND |
| Diamond Carpet Cleaning LLC | DL311761 | 2025-10-17 | Active | Sioux Falls |
| DIAMOND CITY, L.L.C. | DL006670 | 2003-12-17 | Active | Sioux Falls |
| DIAMOND CLEAR ICE OF MARSHALL, INC. | FB022505 | 1999-05-06 | Revoked | MARSHALL |
| DIAMOND CLEAR WINDOW CLEANING LLC | DL229226 | 2022-06-21 | Active | Erwin |
| Diamond Construction LLC | DL277061 | 2024-06-16 | Active | Brandon |
| DIAMOND CORPORATION | 19610049D | 1961-04-25 | Suspended | — |
| Diamond Cross Racing LLC | DL048366 | 2016-05-06 | Dissolved | BARNARD |
| Diamond Cut Lawn Care LLC | DL237599 | 2022-10-29 | Dissolved | McCook Lake |
| Diamond D Cattle, LLC | DL247944 | 2023-04-04 | Active | Ashton |
| Diamond D Construction LLC | DL196483 | 2021-02-10 | Active | Eagle Butte |
| Diamond D Crop Consulting, LLC | DL042346 | 2015-03-02 | Dissolved | ASHTON |
| DIAMOND D ENTERPRISES, INC. | DB311613 | 2025-10-16 | Active | Harrisburg |
| Diamond D Express, LLC | DL233600 | 2022-08-29 | Dissolved | Rapid City |
| DIAMOND D HOLDINGS, LLC | DL128873 | 2016-12-15 | Dissolved | Summerset |
| Diamond D Property LLC | DL312452 | 2025-10-28 | Active | Belle Fourche |
| DIAMOND D, LLC | DL048127 | 2016-04-21 | Active | ALPENA |
| DIAMOND DALE VACATION, LLC | DL012437 | 2006-11-06 | Dissolved | MADISON |
| DIAMOND DATA DESIGN, INC. | DB038736 | 1997-06-25 | Dissolved | EMERY |
| DIAMOND DAVE'S TACO COMPANY, INC. | FB019375 | 1996-10-07 | Revoked | IOWA CITY |
| Diamond Dawgs Baseball Club | NS295207 | 2025-03-11 | Active | Roslyn |
| DIAMOND DENTAL STUDIO, INC. | DB043624 | 2001-01-02 | Dissolved | RAPID CITY |
| Diamond Dogs, LLC | DL256036 | 2023-08-14 | Active | SIOUX FALLS |
| Diamond Domestics Cleaning LLC | DL047761 | 2016-03-28 | Suspended | Sioux Falls |
| Diamond Double Bar Limited | DB154339 | 2018-09-25 | Active | TRAIL CITY |
| DIAMOND DRUGS, INC. | FB029387 | 2005-02-22 | Active | INDIANA |
| Diamond Drywall and Painting, LLC | FL221316 | 2022-02-23 | Active | McIntosh |
| Diamond Duct Cleaning LLC | DL301682 | 2025-06-03 | Active | Sioux Falls |
| Diamond duo, llc | DL303409 | 2025-06-27 | Active | Sioux Falls |
| DIAMOND E ROAD DISTRICT | DM009552 | 2004-08-30 | Active | CUSTER |
| DIAMOND E, L.L.C. | DL001208 | 1997-04-25 | Dissolved | — |
| DIAMOND E. ENTERPRIZES INC. | DB029199 | 1990-02-27 | Inactive | — |
| DIAMOND ELECTRIC, INC. | DB035252 | 1995-01-06 | Inactive | — |
| Diamond Energy Systems, Inc. | FB328965 | 2026-05-18 | Active | Columbus |
| DIAMOND ENTERPRISES, INC. | DB051593 | 2006-10-04 | Dissolved | OACOMA |
| Diamond Enterprises, LLC | DL136171 | 2017-08-21 | Active | Spearfish |
| DIAMOND ENVIRONMENTAL SERVICES, INC. | FB017026 | 1994-06-16 | Revoked | MCCOOK |
| Diamond Equipment Sales LLC | DL313799 | 2025-11-17 | Active | Sioux Falls |
| Diamond Estates Corporation | DB222994 | 2022-03-17 | Dissolved | Mclean |
| DIAMOND EXPLORATION, INC. | FB013982 | 1990-11-26 | Revoked | PAOLA |
| DIAMOND F PARTNERS, LLC | DL015231 | 2007-12-10 | Inactive | VERMILLION |
| Diamond Field Association, Inc. | NS049400 | 2014-07-16 | Active | SIOUX FALLS |
| Diamond Field Commons, LLC | DL038182 | 2014-04-02 | Dissolved | SIOUX FALLS |
| DIAMOND FIELD ESTATES, LLC | DL016591 | 2008-05-29 | Dissolved | TEA |
| DIAMOND FIELD STORAGE, LLC | DL145244 | 2018-03-13 | Inactive | SIOUX FALLS |
| DIAMOND FIVE FARMS, LLC | DL022411 | 2010-09-15 | Active | FREDERICK |
| DIAMOND FIVE FEEDERS, LLC | DL172053 | 2019-10-23 | Active | Frederick |
| Diamond Group, LLC | DL211148 | 2021-09-28 | Inactive | Spearfish |
| Diamond H Properties LLC | DL138976 | 2017-10-25 | Active | Yankton |
| DIAMOND H PROPERTIES, INC. | DB026464 | 1987-06-16 | Dissolved | — |
| DIAMOND H SERVICE, LLC | FL006396 | 2012-07-13 | Revoked | BOWMAN |
| Diamond H, LLC | DL301746 | 2025-06-04 | Active | FAULKTON |
| Diamond Hair LLC | DL196676 | 2021-02-15 | Dissolved | Rapid City |
| Diamond Hands LLC | DL197366 | 2021-02-24 | Active | — |
| Diamond Hearts Performance Horses LLC | DL304056 | 2025-07-07 | Active | Rapid City |
| Diamond Holdings, LLC | DL175154 | 2020-01-01 | Active | Eagle |
| DIAMOND HOME BUILDERS | DT000182 | 2009-09-08 | Active | — |
| Diamond Home Protection LLC | FL259054 | 2023-09-19 | Revoked | OFallon |
| Diamond Home Protection LLC | FL172805 | 2019-11-11 | Revoked | O'Fallon |
| DIAMOND HOMES, LLC | DL012903 | 2007-01-08 | Inactive | SIOUX FALLS |
| DIAMOND HOSPITALITY LLC | DL031447 | 2013-02-28 | Active | RAPID CITY |
| DIAMOND HOSPITALITY, LLC | DL003039 | 2000-06-09 | Inactive | — |
| Diamond Inc. | DB268330 | 2024-02-12 | Dissolved | Hot Springs |
| Diamond Investment LLC | DL228972 | 2022-06-15 | Dissolved | Temecula |
| Diamond Investments, Inc. | DB156983 | 2018-11-30 | Active | Aberdeen |
| DIAMOND ISLAND ASSOCIATION | 18820000D | 1882-09-23 | Active | — |