| Youth & Family Services QALICB, Inc. | — | NS145181 | 2018-03-12 | Dissolved | Rapid City |
| YOUTH ACTIVITIES, INC. | — | NS007480 | 1982-11-23 | Active | Sioux Falls |
| YOUTH ADVOCATE PROGRAMS, INC. | — | FN030387 | 2014-09-15 | Active | Harrisburg |
| YOUTH AND FAMILY OUTREACH | — | 18500000ND | 1850-08-03 | Active | — |
| YOUTH AND FAMILY SERVICES, INC. | Health care and social assistance | NS000913 | 1966-01-06 | Active | RAPID CITY |
| Youth Athletics | — | NS275944 | 2024-05-29 | Active | Rapid City |
| YOUTH CROSSROADS OUTREACH | — | NS009097 | 1990-01-30 | Inactive | — |
| YOUTH DEVELOPMENT PROGRAM | — | NS008971 | 1989-05-22 | Dissolved | RAPID CITY |
| YOUTH EMPOWERMENT ACADEMY, INC. | — | NS014888 | 2012-07-19 | Dissolved | GLENDALE |
| YOUTH EMPOWERMENT ACADEMY, INC. | — | RS005680 | — | Active | — |
| YOUTH ENTERPRISES, LLC | — | DL160951 | 2019-02-27 | Active | SIOUX FALLS |
| YOUTH EVANGELISM STRATEGIES, INC. | — | NS158688 | 2011-02-23 | Active | Lander |
| YOUTH EVANGELISM STRATEGIES, INC. | — | FN011239 | 2011-02-23 | Active | — |
| Youth for the Quality Care of Animals, Inc. | — | NS050103 | 2016-09-12 | Active | Pierre |
| YOUTH FOR UNDERSTANDING USA, INC. | — | FN030395 | 2014-10-30 | Revoked | Saginaw |
| YOUTH FUTURE FUND, INC. | — | NS010522 | 1996-03-14 | Dissolved | — |
| YOUTH IN SCIENCE RAPID CITY, INC. | — | NS014296 | 2010-04-16 | Active | RAPID CITY |
| YOUTH INSURANCE AGENCY, INC. | — | FB025176 | 2001-05-29 | Inactive | LOS ANGELES |
| YOUTH LEADERSHIP, LIFE SKILLS, AND GOLF FOR SIOUX FALLS, INC. | — | NS012860 | 2005-06-01 | Inactive | — |
| YOUTH MINISTRY EVANGELISM INC. | — | NS014809 | 2012-04-06 | Active | STURGIS |
| Youth Ninja Foundation | — | NS224265 | 2022-04-05 | Active | Sioux Falls |
| Youth Oahe Driving Academy LLC | — | DL175004 | 2020-02-14 | Dissolved | Pierre |
| YOUTH SERVICES INTERNATIONAL OF SOUTH DAKOTA, INC. | — | DB033555 | 1993-10-21 | Dissolved | SARASOTA |
| YOUTH SERVICES INTERNATIONAL, INC. | — | FB026591 | 2002-09-10 | Revoked | SARASOTA |
| YOUTH SERVICES INTERNATIONAL, INC. | — | FB029925 | 2005-08-31 | Inactive | SARASOTA |
| YOUTH SLOW PITCH SOFTBALL ASSOCIATION, INC. | — | NS008707 | 1988-03-31 | Active | SIOUX FALLS |
| Youth Soccer Infrastructure, LLC | — | DL229229 | 2022-06-21 | Active | Hill City |
| Youth Sports Science, LLC | — | DL145592 | 2018-03-19 | Dissolved | Watertown |
| YOUTH WITH A MISSION SOUTH DAKOTA, INC. | — | NS010338 | 1995-05-22 | Active | Wylie |
| Youthful Wings | — | NS049369 | 2014-06-13 | Dissolved | — |
| YOUTHIX INTERNATIONAL, INC. | — | DB132731 | 2017-04-20 | Dissolved | IRVINE |
| YOUTHWORKS | — | FN011292 | 2012-02-06 | Revoked | MINNEAPOLIS |
| YOUZOOM INSURANCE SERVICES, INC. | — | FB026294 | 2002-05-28 | Inactive | SAN DIEGO |
| YOUZOOM INSURANCE SERVICES, INC. | — | FB036139 | 2012-07-30 | Active | SAN DIEGO |
| YOWAY BEAUTY LLC | — | DL286305 | 2024-11-04 | Active | Sioux Falls |
| YOYO HIBACHI, LLC | — | DL280205 | 2024-08-01 | Active | RAPID CITY |
| Yoyodyne Propulsion Inc. | — | DB058989 | 2014-04-14 | Dissolved | RAPID CITY |
| YP Advertising & Publishing LLC | — | FL043264 | 2015-02-13 | Revoked | TUCKER |
| YPD K-9 CORPS, INC. | — | NS010390 | 1995-08-30 | Dissolved | — |
| YPR RE, LLC | — | FL270176 | 2024-03-07 | Active | Orange City |
| YPSILANTI SPECIFIC COMPANY | — | 18970004D | 1897-01-16 | Expired | — |
| YRB 33rd, LLC | — | DL136473 | 2017-08-29 | Active | SIOUX FALLS |
| YRB Ventures LLC | — | DL269305 | 2024-02-26 | Active | Watertown |
| YRB Westport, LLC | — | DL136472 | 2017-08-29 | Active | SIOUX FALLS |
| YRC INC. | — | FB021343 | 1998-05-19 | Active | Overland Park |
| YREFY SLP4, LLC | — | FL287475 | 2024-11-20 | Active | Phoenix |
| YREFY SLP5, LLC | — | FL272738 | 2024-04-12 | Active | PHOENIX |
| YRnA LLC | — | DL221328 | 2022-02-23 | Active | Rapid City |
| YSB HOLDINGS LLC | — | DL327390 | 2026-04-29 | Active | Monsey |
| YSB, LLC | — | DL020904 | 2010-03-02 | Dissolved | BELLE FOURCHE |
| YSD Holdings LLC | — | DL332979 | 2026-07-07 | Active | Yankton |
| Ysker Property Holdings, LLC | — | DL313458 | 2025-11-12 | Active | WATERTOWN |
| YSL Consulting LLC | — | DL257137 | 2023-08-22 | Dissolved | Sioux Falls |
| YST REHABILITATION GROUP, INC. | — | NS010607 | 1996-06-28 | Inactive | — |
| Ystaas Electrical Service LLC | — | FL191458 | 2020-11-18 | Active | Dickinson |
| YSTEBO DRY-WALL CO. | — | FB010550 | 1985-11-15 | Revoked | MOORHEAD |
| YSTERMAN BOERDERY, INC. | — | DB040507 | 1998-09-16 | Inactive | — |
| YT Transcripts LLC | — | DL292299 | 2025-02-01 | Inactive | Box Elder |
| YTB INSURANCE, INC. | — | DB047262 | 2003-08-27 | Dissolved | IPSWICH |
| YTS Companies, LLC | — | FL328553 | 2026-05-12 | Active | Maple Grove |
| YTS, L.L.C. | — | DL133289 | 2017-05-09 | Active | Yankton |
| YU BLU SNI L.L.C. | — | DL005897 | 2003-05-22 | Inactive | — |
| YUAN TRADING INC | — | DB245171 | 2023-02-24 | Suspended | WATERTOWN |
| Yuansfer, Inc. | — | FB276867 | 2024-06-13 | Active | New York |
| Yucca Court Owners' Association, Inc. | — | NS049764 | 2015-09-16 | Dissolved | — |
| Yucca Gulch LLC | — | DL231678 | 2022-07-30 | Active | Hot Springs |
| YUDY'S | — | 19460120D | 1946-01-02 | Active | — |
| YUGO CREDIT CORPORATION | — | FB012318 | 1988-09-15 | Revoked | DOVER |
| YUKON COMPANY | — | DB044963 | 2002-01-14 | Inactive | — |
| YUKON ELECTRIC COMPANY | — | FB016823 | 1994-04-07 | Revoked | COLLEGE PARK |
| Yukon LLC | — | DL259222 | 2023-09-20 | Active | Watertown |
| Yukon Management, LLC | — | FL259197 | 2023-09-20 | Active | Anchorage |
| YUKON PROPERTIES, LLC | — | DL007557 | 2004-06-30 | Active | Rapid City |
| YUKON RANCH TRUCKING, INC. | — | DB054312 | 2009-02-17 | Dissolved | ALCESTER |
| Yukon Trail Twin Homes Owners' Association | — | NS050159 | 2016-11-03 | Active | Sioux Falls |
| Yulife Insurance Agency Inc. | — | FB229098 | 2022-06-17 | Active | Atlanta |
| YULISTA MANAGEMENT SERVICES, INC. | — | FB026521 | 2002-08-13 | Inactive | ANCHORAGE |
| Yulista Support Services, LLC | — | FL260174 | 2023-10-05 | Active | ANCHORAGE |
| Yuliya's Helping Hands LLC | — | DL179996 | 2020-04-15 | Dissolved | Harrisburg |
| Yulla's Brazilian Bistro LLC | — | DL183985 | 2020-07-02 | Dissolved | Spearfish |
| Yulla's Chocolates & Desserts, LLC | — | DL179877 | 2020-04-13 | Dissolved | Spearfish |
| Yum on the Run, Incorporated | — | DB059173 | 2014-06-17 | Dissolved | RAPID CITY |
| YUMA SEMEN SALES, INC. | — | DB023427 | 1984-05-08 | Inactive | — |
| YUMA SURGERY ASSOCIATES INVESTMENT LLC | — | DL262597 | 2023-11-15 | Active | Dallas |
| YUMA THE PIG, LLC | — | DL027442 | 2012-03-07 | Inactive | SANTA MONICA |
| YUMMY CRAB SD INC | — | DB318841 | 2026-01-23 | Active | SIOUX FALLS |
| Yummy House Restaurant, LLC | — | DL167199 | 2019-07-11 | Dissolved | Sioux Falls |
| YUMMY INTERNATIONAL LTD | — | NS269948 | 2024-03-05 | Dissolved | SIOUX FALLS |
| YUMMY YUMMY IN MY TUMMY LLC | — | DL276259 | 2024-06-03 | Active | SIOUX FALLS |
| YUNEX LLC | — | FL199673 | 2021-03-26 | Active | AUSTIN |
| YUNG CITY FASHION INC | — | DB301312 | 2025-05-29 | Suspended | Deadwood |
| YUNG INVESTMENTS, LLC | — | DL012257 | 2006-10-10 | Active | SIOUX FALLS |
| YUNGWIRTH CONSTRUCTION, INC. | — | DB047338 | 2003-09-16 | Active | SIOUX FALLS |
| YUNKER FARMS, INC. | — | DF007065 | 1967-12-29 | Inactive | — |
| YunoJuno Workforce Solutions LLC | — | DL310743 | 2025-10-03 | Active | Sioux Falls |
| Yuowanca, LLC | — | DL299301 | 2025-05-20 | Active | Aberdeen |
| Yup We Travel LLC | — | DL307086 | 2025-08-14 | Active | Watertown |
| Yuppie Built LLC | — | DL158481 | 2019-01-06 | Active | Sioux Falls |
| Yuppie Properties LLC | — | DL215720 | 2021-12-05 | Active | Sioux Falls |
| YUPPTV USA, INC. | — | FB039582 | 2016-09-20 | Inactive | ALPHARETTA |
| Yuppy Puppy Pet Grooming Spa, LLC | — | DL037624 | 2014-02-27 | Dissolved | RAPID CITY |
| YUR Brace, LLC | — | DL192286 | 2020-12-04 | Active | Dakota Dunes |
| YUR Trucking LLC | — | DL190303 | 2020-10-28 | Dissolved | Sioux Falls |
| YURATWIN - ULTIMATE SPORTS ADVENTURES, LLC | — | FL043674 | 2015-08-03 | Active | SPEARFISH |
| YURTH LLC | — | DL322141 | 2026-03-01 | Active | HARTFORD |
| YURU INSURANCE SERVICES, INC. | — | FB034859 | 2010-12-28 | Revoked | BAKERSFIELD |
| YUSEN LOGISTICS (AMERICAS) INC | — | RS005611 | — | Active | — |
| Yuwaste LLC | — | DL309771 | 2025-09-22 | Active | Sisseton |
| Yuyo llc | — | DL280778 | 2024-08-10 | Active | Rapid City |
| YVETTE L. PHILIPSEN, LLC | — | DL026528 | 2011-12-14 | Dissolved | STURGIS |
| YVL Rentals LLC | — | DL299373 | 2025-05-02 | Active | Lesterville |
| Yvngcaelum LLC | — | DL306900 | 2025-08-12 | Active | Sioux falls |
| YW MIRACLE PARTNERS, L.L.C. | — | DL009544 | 2005-07-18 | Inactive | — |
| Z & B Tools Inc. | — | DB194067 | 2021-01-05 | Active | Los Angeles |
| Z & H Construction, Inc. | — | DB285113 | 2024-10-15 | Active | rapid city |
| Z & J LODGING, L.L.C. | — | DL004659 | 2002-04-11 | Active | HILL CITY |
| Z & M ASSOCIATES, L.L.C. | — | DL000965 | 1996-09-17 | Active | Sturgis |
| Z & r investments, LLC | — | DL138322 | 2017-10-11 | Dissolved | HILL CITY |
| Z & R RACING, INC. | — | DB043739 | 2001-01-29 | Inactive | — |
| Z & S SPECIALTIES, LLC | — | DL027652 | 2012-03-23 | Active | MOBRIDGE |
| Z & S, LLP | — | DR001514 | 2012-12-06 | Active | HARTFORD |
| Z & V Welding LLC | — | DL168108 | 2019-07-31 | Dissolved | CLAIRE CITY |
| Z & Z CLAUDIA SUPPLY INC. | — | NS247942 | 2023-04-04 | Dissolved | SIOUX FALLS |
| Z & Z Hotels, LLC | — | DL175499 | 2020-01-08 | Active | Hot Springs |
| Z & Z Seal Coating Inc | — | FB176900 | 2020-02-05 | Active | Laurel |
| Z - K Carpentry LLC | — | DL321244 | 2026-02-19 | Active | Hot Springs |
| Z AND A INFOTEK CORPORATION | — | DB048948 | 2004-12-03 | Inactive | CEDAR KNOLLS |
| Z and A LLC | — | DL220411 | 2022-02-10 | Dissolved | Jefferson |
| Z and M trucking LLC | — | DL133643 | 2017-05-25 | Active | MITCHELL |
| Z And R Auto Detailing, LLC | — | DL164860 | 2019-05-18 | Active | Aberdeen |
| Z AND Z BUILDERS LLC | — | DL173675 | 2019-12-02 | Dissolved | SIOUX FALLS |
| Z Bar T Supplements LLC | — | DL164834 | 2019-05-18 | Dissolved | Rapid City |
| Z Best Creation Station, LLC | — | DL313987 | 2025-11-18 | Active | Tabor |
| Z Best Detail, LLC | — | DL049224 | 2016-07-12 | Dissolved | SIOUX FALLS |
| Z BROSIS LLC | — | DL173210 | 2019-11-19 | Active | STURGIS |
| Z Companies, Inc. | — | FB207490 | 2021-07-30 | Active | Spokane |
| Z Construction LLC | — | DL268296 | 2024-02-11 | Dissolved | Sioux Falls |
| Z CONTRACTING, INC. | — | FB027156 | 2003-04-01 | Inactive | BRAINERD |
| Z Creative, L.L.C. | — | DL039444 | 2014-07-07 | Active | Seward |
| Z Development, LLC | — | DL314142 | 2025-11-20 | Active | Rapid City |
| Z Digital, LLC | — | DL329890 | 2026-05-28 | Active | Rapid City |
| Z E M'S FRESH STARTS, L.L.C. | — | DL001078 | 1996-12-30 | Dissolved | — |
| Z KROGH, LLC | — | DL219224 | 2022-02-01 | Active | McLaughlin |
| Z Line LLC | — | DL296672 | 2025-03-28 | Active | Sturgis |
| Z N COMMODITIES, INC. | — | DB030115 | 1990-12-31 | Inactive | — |
| Z PIPE, LLC | — | FL004575 | 2009-05-15 | Inactive | TULSA |
| Z PLANE, LLC | — | DL001936 | 1998-11-16 | Dissolved | VALLEY SPRINGS |
| Z PROPERTIES LLC | — | DL034964 | 2013-09-12 | Active | RAPID CITY |
| Z R CONSULTING, INC. | — | DB034771 | 1994-09-01 | Inactive | — |
| Z Schroeder Cleaning LLC | — | DL275595 | 2024-05-24 | Active | Sturgis |
| Z SEGAL ENTERPRISES LIMITED PARTNERSHIP | — | DP002366 | 2012-05-04 | Active | SIOUX FALLS |
| Z SISBRO, LLC | — | DL160896 | 2019-02-26 | Active | Sturgis |
| Z TAN-MINNESOTA, LLC | — | DL026196 | 2011-11-10 | Dissolved | EAU CLAIRE |
| Z TAN-WISCONSIN, LLC | — | DL026198 | 2011-11-10 | Dissolved | EAU CLAIRE |
| Z TEAM EDUCATIONAL LLC | — | DL024821 | 2011-05-31 | Dissolved | SIOUX FALLS |
| Z Tech LLC | — | DL235081 | 2022-09-21 | Dissolved | Rapid City |
| Z Treatment, LLC | — | DL235452 | 2022-09-26 | Active | Centerville, SD |
| Z WARRIOR LLC | — | DL032559 | 2013-05-22 | Inactive | TEA |
| Z&A, LLC | — | DL129391 | 2017-01-05 | Dissolved | Sioux Falls |
| Z&F Consulting, Inc. | — | FB131796 | 2017-03-23 | Inactive | WEST CHESTER |
| Z&L Properties LLC | — | DL329106 | 2026-05-19 | Active | Rapid City |
| Z&O Enterprises LLC | — | DL305365 | 2025-07-23 | Active | Rapid City |
| Z&P, LLC | — | DL197173 | 2021-02-22 | Active | Rapid City |
| Z&S FINANCIAL MARKETING, L.L.C. | — | FL002206 | 2004-12-16 | Revoked | LEESBURG |
| Z'KOTA GRILLE OF BROOKINGS, INC. | — | DB029210 | 1990-03-01 | Dissolved | BROOKINGS |
| Z'Mariks Noodle Cafe, LLC | — | DL202516 | 2021-05-07 | Dissolved | Rapid City |
| Z's Bees Honey Co LLC | — | DL326564 | 2026-04-20 | Active | Mitchell |
| Z's E-bikes LLC | — | DL278567 | 2024-07-10 | Active | Sioux falls |
| Z's Food and Beverage Consulting LLC | — | DL303037 | 2025-06-23 | Active | Watertown |
| Z's Fresh Market, Inc. | — | DB166787 | 2019-07-01 | Dissolved | Ellendale |
| Z's Painting Company, LLC | — | DL220539 | 2022-02-12 | Suspended | Yankton |
| Z'S PILOT CAR SERVICE LLC | — | DL032172 | 2013-04-24 | Dissolved | SIOUX FALLS |
| Z's Trees and Snow Removal L.L.C. | — | DL317510 | 2026-01-09 | Active | Sioux Falls |
| Z-ALL COMPANY, LLC | — | DL032771 | 2013-06-10 | Inactive | SIOUX FALLS |
| Z-BEST COMPANY | — | DB031859 | 1992-06-18 | Dissolved | — |
| Z-GROUP, INC. | — | FB012466 | 1988-12-08 | Inactive | FARGO |
| Z-KING, INC. | — | DB048763 | 2004-09-24 | Dissolved | SIOUX FALLS |
| Z-LAND, LLC | — | DL000709 | 1996-01-30 | Inactive | SIOUX FALLS |
| Z-PEPPER65, INC. | — | DB052817 | 2007-10-09 | Inactive | YANKTON |
| Z-SHOWERS, LLC | — | DL307673 | 2025-08-25 | Active | Sioux Falls |
| Z-T-R INVESTORS, INC. | — | DB038831 | 1997-07-21 | Inactive | — |
| Z-TEL MILLENNIUM TECHNOLOGIES, INC. | — | FB022606 | 1999-06-02 | Revoked | CARSON CITY |
| Z-TRUCKS, INC. | — | DB033800 | 1993-12-27 | Inactive | — |
| Z-zero LLC | — | DL179520 | 2020-04-03 | Active | Redmond |
| Z.N., INC. | — | DB028445 | 1989-05-31 | Dissolved | — |
| Z.T.L., INC. | — | DB026754 | 1987-09-29 | Inactive | — |
| Z.Yuankeji Inc | — | DB314018 | 2025-11-19 | Active | Pierre |
| Z/I IMAGING CORPORATION | — | FB023760 | 2000-04-11 | Revoked | WILMINGTON |
| Z/I IMAGING UNITED STATES OF AMERICA, INC. | — | FB025645 | 2001-10-30 | Revoked | HUNTSVILLE |
| Z/Z - 17 Bow LLC | — | DL194737 | 2021-01-14 | Active | Sioux Falls |
| Z/Z - 18 Brantwood LLC | — | DL203266 | 2021-05-20 | Active | Sioux Falls |
| Z2 LLC | — | DL193428 | 2020-12-22 | Active | Pierre |
| Z2 SD, LLC | — | DL244950 | 2023-02-22 | Active | Pierre |
| Z2 Services Inc. | — | DB047547 | 2003-11-20 | Active | SIOUX FALLS |
| Z2 SPE LLC | — | DL241141 | 2022-12-29 | Active | Pierre |
| Z2B Outdoor Lighting LLC | — | DL327303 | 2026-05-11 | Active | Pierre |
| Z2M INVESTMENTS, LLC | — | DL295295 | 2025-03-12 | Active | SPEARFISH |
| Z6 Holdings LLC | — | DL325977 | 2026-04-13 | Active | SIOUX FALLS |
| Z6 Holdings LLC - Development | — | DL327219 | 2026-04-27 | Active | SIOUX FALLS |
| Z6 Holdings LLC - Equipment Rental | — | DL327220 | 2026-04-27 | Active | SIOUX FALLS |