| MSM SOLUTIONS, L.L.C. | DL217463 | 2021-12-30 | Active | RAPID CITY |
| MSM, INC. | DB028354 | 1989-05-02 | Inactive | — |
| MSMC, INC. | FB015413 | 1992-07-27 | Inactive | ST PETERSBURG |
| MSmidt LLC | DL310541 | 2025-10-01 | Active | Sioux Falls |
| MSMRA | NS014014 | 2009-04-30 | Dissolved | WHITE RIVER |
| MSN Enterprises, LLC | DL178653 | 2020-03-12 | Active | Yankton |
| MSN, LLC | DL046004 | 2015-11-30 | Active | BELLE FOURCHE |
| MSO Insurance Services, Inc. | FB233014 | 2022-08-20 | Active | Salinas |
| MSO, INC. | FN011275 | 2011-10-03 | Active | GLEN ROCK |
| MSOURCE (INDIA) PRIVATE LIMITED | FB033678 | 2009-07-28 | Inactive | — |
| MSP LLC | DL198326 | 2021-03-10 | Active | HERMOSA |
| MSP Services, LLC | DL249088 | 2023-04-20 | Active | Sioux Falls |
| MSP Wellness, LLC | DL133491 | 2017-05-16 | Dissolved | Edina |
| MSP4 ENTERPRISE LLC | DL031308 | 2013-02-14 | Dissolved | WESSINGTON SPRINGS |
| MSPARK MEDIA, LLC | FL270302 | 2024-03-08 | Active | HELENA |
| MSpringer LLC | DL273088 | 2024-06-24 | Dissolved | Brandon |
| MsQArtisans LLC | DL217618 | 2022-01-03 | Dissolved | Watertown |
| MSQUARED LLC | DL023087 | 2010-12-08 | Dissolved | rapid city |
| MSR ASSET VEHICLE LLC | FL187813 | 2020-09-16 | Active | Atlanta |
| MSR SUPER 8, INC. | DB020520 | 1981-03-30 | Inactive | — |
| MSRD INC. | DB052555 | 2007-07-06 | Dissolved | SIOUX FALLS |
| MsRealtySD LLC | DL215058 | 2021-11-23 | Active | Hartford |
| MSRP Empire LLC | DL297755 | 2025-04-10 | Suspended | Sioux Falls |
| MSS Holdings, LLC | DL317592 | 2026-01-09 | Active | Sioux Falls |
| MSS Inc | FB152322 | 2018-08-10 | Active | Rice Lake |
| MSSD Dynasty LLC | DL212361 | 2021-10-15 | Active | PIERRE |
| MSSD LLC | DL229880 | 2022-09-14 | Inactive | Yankton |
| MST ENTERPRISES, LLC | DL012521 | 2006-11-17 | Inactive | — |
| MST FINANCIAL SOLUTIONS, LLC | FL146521 | 2018-04-06 | Active | Coeur d'Alene |
| MST INSURANCE SOLUTIONS, INC. | FB333446 | 2026-07-13 | Active | TORRANCE |
| MST INSURANCE SOLUTIONS, INC. | FB034913 | 2011-01-20 | Revoked | TORRANCE |
| MST INVESTMENTS, INC. | DB024426 | 1985-05-20 | Dissolved | SIOUX FALLS |
| MSTM PROPERTIES, LLC | DL008539 | 2005-01-21 | Active | MITCHELL |
| MSTONER, INC. | FB163757 | 2019-04-26 | Revoked | Chicago |
| MSTR, INC. | DB031706 | 1992-05-01 | Dissolved | — |
| mSuite.pro LLC | DL259233 | 2023-09-22 | Active | Birnamwood |
| MSV, LLC | DL267506 | 2024-01-31 | Active | Brookings |
| MSVisionary LLC | DL306661 | 2025-08-08 | Active | Brandon |
| MSW CAPITAL, LLC | FL004811 | 2009-10-15 | Active | SARASOTA |
| MSW Clinical Services LLC | DL289110 | 2024-12-16 | Active | Sioux Falls |
| MSX INTERNATIONAL RNS, LLC | FL148453 | 2018-05-17 | Active | Troy |
| MT AYE SUSHI LLC | DL253871 | 2023-06-30 | Dissolved | MITCHELL |
| MT CATTLE COMPANY, LLC | DL045306 | 2015-09-29 | Active | Winner |
| MT CATTLE COMPANY, LLP | DR000184 | 1997-08-19 | Inactive | HAMILL |
| MT COMPUTERS INC | DB056877 | 2012-05-09 | Dissolved | SIOUX FALLS |
| MT CONCRETE LLC | DL253164 | 2023-06-20 | Dissolved | SIOUX FALLS |
| MT Construction LLC | DL048405 | 2016-05-09 | Dissolved | WAUBAY |
| MT Contracting LLC | DL302395 | 2025-06-12 | Active | Sioux Falls |
| MT CURRY, LLC | DL272606 | 2024-04-10 | Active | Burbank |
| MT Endeavors LLC | DL277458 | 2024-06-21 | Active | Brookings |
| MT ENTERPRISES, INC. | DB049267 | 2005-02-03 | Dissolved | WEBSTER |
| MT ERICKSON FARMS, INCORPORATED | DF050254 | 2005-10-21 | Active | PLATTE |
| Mt Ever Rest, LLC | DL252523 | 2023-06-08 | Active | Lead |
| MT Family Limited Partnership | DP146035 | 2018-03-28 | Active | BRITTON |
| MT Farms, LLC | DL046812 | 2016-01-22 | Active | WINNER |
| MT FEEDS, LLC | DL043731 | 2015-05-15 | Dissolved | BRITTON |
| MT Holdings, LLC | DL228795 | 2022-06-13 | Active | Vernal |
| Mt Hood Holdings LLC | DL045472 | 2015-10-13 | Inactive | GILLETTE |
| MT INVESTMENTS, LLC | DL017071 | 2008-07-31 | Active | Sioux Falls |
| MT LOTS, LP | DP242132 | 2023-01-12 | Active | PIERRE |
| MT MANAGEMENT, LLC | FL000792 | 2000-10-25 | Revoked | CHICAGO |
| MT PROPERTIES, L.L.C. | DL003991 | 2001-08-13 | Inactive | — |
| MT PROPERTIES, LLC | DL023637 | 2011-01-28 | Active | SIOUX FALLS |
| MT Rental Properties, LLC | DL221788 | 2022-03-02 | Active | Aberdeen |
| MT RENTALS, LLC | DL025058 | 2011-06-29 | Dissolved | ABERDEEN |
| MT RENTALS, LLC | DL143659 | 2018-02-07 | Active | HITCHCOCK |
| Mt Rushmore Education LLC | DL148176 | 2018-05-12 | Active | Vermillion |
| Mt Rushmore Exteriors, LLC | DL293766 | 2025-02-20 | Active | Rapid City |
| MT RUSHMORE INSURANCE AGENCY, INC. | DB042420 | 2000-02-08 | Dissolved | RAPID CITY |
| MT South Dakota Holdings, LLC | DL139506 | 2017-11-07 | Dissolved | SIOUX FALLS |
| MT STOOGES, INC. | DB053728 | 2008-06-25 | Dissolved | LEMMON |
| MT Storage, LLC | DL049094 | 2016-06-30 | Dissolved | GREGORY |
| MT SYSTEMS, INC. | DB014090 | 1977-01-20 | Active | SIOUX FALLS |
| MT Tam Holdings LLC | DL214829 | 2021-11-19 | Active | Sioux Falls |
| MT Trading LLC | DL180190 | 2020-04-20 | Dissolved | Waldorf |
| MT Trucking LLC | DL148645 | 2018-05-23 | Dissolved | Belle Fourche |
| MT VESSELS LLC | DL217145 | 2021-12-27 | Active | Emery |
| MT ZION SISTERHOOD GIFT SHOP, INC. | NS014484 | 2010-12-13 | Active | SIOUX FALLS |
| MT's Enterprises, LLC | DL249746 | 2023-04-28 | Dissolved | Belle Fourche |
| MT. ABRAM CEMETERY ASSOCIATION | 19450004N | 1945-05-24 | Active | — |
| MT. ABRAM FISH & GAME ASSOCIATION | 19360009ND | 1936-10-17 | Dissolved | — |
| MT. ABRAM SKI SLOPES, INC. | 19600113D | 1960-07-27 | Dissolved | — |
| MT. BATTIE ASSOCIATION | 18990013D | 1899-07-13 | Dissolved | — |
| MT. CALVARY EVANGELICAL LUTHERAN CHURCH OF ESTELLINE | CH001375 | 1939-08-24 | Active | ESTELLINE |
| Mt. Calvary Learning Center, Inc. | DB243000 | 2023-01-25 | Active | Huron |
| Mt. Calvary Learning Center, Inc. | NS328486 | 2023-01-25 | Active | HURON |
| MT. CUTLER GRANGE #152, P. OF H. | 19650021ND | 1965-03-17 | Suspended | — |
| MT. DESERT BLOCK CO. | 18990005D | 1899-12-26 | Dissolved | — |
| MT. DESERT ISLAND DAIRIES, INC. | 19320021D | 1932-04-06 | Dissolved | — |
| MT. DESERT ISLAND YMCA | 19000007ND | 1900-05-17 | Active | — |
| MT. ETNA GRANGE #147 PATRONS OF HUSBANDRY | 19100008ND | 1910-06-06 | Active | — |
| MT. INDEPENDENCE GRANGE, NO. 482 PATRONS OF HUSBANDRY | 19210007ND | 1921-05-05 | Dissolved | — |
| MT. JEFFERSON SKI & RECREATION ASSOCIATION | 19640140D | 1964-05-27 | Dissolved | — |
| MT. JONO, LLC | DL014541 | 2007-08-27 | Active | Harrisburg |
| Mt. Meadow Rentals at Deerfield Lake, LLC | DL128541 | 2016-12-12 | Inactive | Rapid City |
| MT. MEADOW RESORT, LLC | DL025489 | 2011-08-22 | Inactive | HILL CITY |
| MT. MEADOW STORE AND CAMPGROUND, LLC | DL026223 | 2011-11-14 | Dissolved | RAPID CITY |
| MT. MICA LODGE, NO. 17, I. O. O. F., INC. | 19390022ND | 1939-09-20 | Suspended | — |
| MT. OF OLIVES CHRISTIAN RETREAT | NS012365 | 2003-08-18 | Dissolved | — |
| MT. OLIVE LUTHERAN CHURCH OF WATERTOWN, SOUTH DAKOTA | CH000881 | 1957-09-13 | Active | WATERTOWN |
| MT. PLEASANT ACRES, LLC | DL013099 | 2007-01-31 | Active | Milbank |
| MT. PLEASANT CEMETERY ASSOCIATION | 19240001N | 1924-03-18 | Active | — |
| Mt. Pleasant Properties, LLC | DL217219 | 2021-12-28 | Dissolved | Garden City |
| MT. PLEASANT REBEKAH LODGE, NO. 30, I. O. O. F., INC. | 19420005ND | 1942-03-09 | Dissolved | — |
| MT. RUSHMORE ANTIQUE & CLASSIC CAR CLUB | NS007388 | 1982-05-20 | Dissolved | — |
| MT. RUSHMORE BAT, CO. | DB046265 | 2002-12-27 | Inactive | — |
| Mt. Rushmore Birds & Paws Pet Bakery, LLC | DL159902 | 2019-02-04 | Active | Rapid City |
| MT. RUSHMORE CHAPTER OF DIABETES EDUCATORS | NS010728 | 1997-02-21 | Dissolved | PIERRE |
| MT. RUSHMORE CHAPTER OF SPEBSQSA, INC. | NS013281 | 2006-11-20 | Active | Rapid City |
| MT. RUSHMORE CHEMICAL CO. | DB028357 | 1989-05-02 | Inactive | — |
| MT. RUSHMORE CONTESTS, INC. | NS011067 | 1998-07-24 | Dissolved | — |
| Mt. Rushmore Group LLC | DL283742 | 2024-09-24 | Active | Custer |
| MT. RUSHMORE HOSPITALITY CORPORATION | DB030465 | 1991-03-26 | Inactive | — |
| MT. RUSHMORE HOTEL CORPORATION | FB011874 | 1988-01-15 | Revoked | TOPEKA |
| MT. RUSHMORE HOTEL CORPORATION | FB010187 | 1985-04-19 | Revoked | TOPEKA |
| Mt. Rushmore HRC | NS129730 | 2017-01-17 | Active | HILL CITY |
| Mt. Rushmore Mobile Home Movers, LLC | DL139507 | 2017-11-08 | Dissolved | Black Hawk |
| MT. RUSHMORE MOVERS, INC. | DB011784 | 1973-07-23 | Active | RAPID CITY |
| MT. RUSHMORE PROPERTIES II, LLC | DL014294 | 2007-07-19 | Dissolved | RAPID CITY |
| MT. RUSHMORE PROPERTIES III, LLC | DL017800 | 2008-11-26 | Inactive | RAPID CITY |
| MT. RUSHMORE PROPERTIES, LLC | DL011351 | 2006-05-15 | Inactive | Rapid City |
| MT. RUSHMORE ROAD GROUP, INC. | NS014178 | 2009-11-19 | Active | BLACK HAWK |
| Mt. Rushmore Road, LLC | FL210244 | 2021-09-15 | Inactive | Rapid City |
| MT. RUSHMORE TELEPHONE COMPANY | PU023495 | 1984-06-04 | Inactive | — |
| MT. RUSHMORE TRAIL 100, INC. | NS011410 | 2000-01-18 | Inactive | — |
| Mt. Rushmore Ventures, LLC | DL046003 | 2015-11-30 | Inactive | SIOUX FALLS |
| MT. SUGAR LOAF GRANGE #111 P OF H | 19580015ND | 1958-03-31 | Suspended | — |
| Mt. Trixie, LLC | DL158816 | 2019-01-14 | Inactive | Rapid City |
| MT. Ventures LLC | DL194039 | 2021-01-04 | Dissolved | Ellsworth AFB |
| Mt. Vernon Area Youth Football | NS049476 | 2014-10-01 | Dissolved | MITCHELL |
| MT. VERNON CEMETERY ASSOCIATION | NS001994 | 1883-05-28 | Active | MT VERNON |
| MT. VERNON MANORS, INC. | NS005175 | 1972-09-11 | Dissolved | MOUNT VERNON |
| MT. VERNON RETREAT | 19630034ND | 1963-05-10 | Suspended | — |
| MT. VIEW CAMPGROUND, INC. | DB042783 | 2000-05-09 | Inactive | — |
| MT. VIEW CAR WASH, INC. | DB032385 | 1992-12-09 | Dissolved | RAPID CITY |
| MT. VIEW CHIROPRACTIC, P.C. | DB047752 | 2004-01-05 | Active | Rapid City |
| MT. VIEW PROPERTIES, LLC | DL002425 | 1999-08-20 | Dissolved | — |
| MT. ZION LODGE NO. 6 AF & AM | NS004526 | 1906-06-12 | Inactive | — |
| MT. ZION PIONEER CEMETERY ASSOCIATION | NS007434 | 1982-09-02 | Active | CENTERVILLE |
| MT3 LLP | DR264574 | 2023-12-15 | Active | SIOUX FALLS |
| MTA Tecnologi LLC | DL189156 | 2020-10-09 | Dissolved | Watertown |
| MTAYLOR INC. | FB227896 | 2022-05-27 | Active | LAS VEGAS |
| MTB Holdings LLC | DL235661 | 2022-09-28 | Active | Hermosa |
| MTB Inc. | DB186980 | 2020-09-01 | Active | BOX ELDER |
| MTB Land Limited Partnership | DP303022 | 2025-06-23 | Active | SPEARFISH |
| MTB Rushmore, LLC | DL186397 | 2020-08-20 | Active | Rapid City |
| MTB, LLC | DL133670 | 2017-05-23 | Inactive | Sioux Falls |
| MTBC, LLC | DA046329 | 2015-12-21 | Active | BOWDLE |
| MTBC, LLC | DL046329 | 2015-12-21 | Active | BOWDLE |
| MTBD ENTERPRISES, INC. | DB055303 | 2010-04-26 | Dissolved | CUSTER |
| MTBDE LLC | DL187655 | 2020-09-14 | Dissolved | Tracy |
| MTC FARMS, LLC | DL179447 | 2020-04-01 | Active | NISSWA |
| MTC NEUBERGER, LLP | DR139732 | 2017-11-13 | Active | SIOUX FALLS |
| MTC Partners, LLC | DL263567 | 2023-12-01 | Active | Clark |
| MTC Properties LLC | DL329043 | 2026-05-18 | Active | Miller |
| MTCM CORPORATION | DB028892 | 1989-11-20 | Dissolved | ONIDA |
| MTCS LLC | DL137486 | 2017-09-25 | Active | Yankton |
| MTD Commercial Cleaning LLC | DL192654 | 2020-12-11 | Dissolved | Sioux Falls |
| MTD GAMING, INC. | FB035269 | 2011-07-11 | Revoked | HIGHLANDS RANCH |
| MTD Holdings, LLC | DL275573 | 2024-05-22 | Active | sioux falls |
| MTD Products Company | FB165855 | 2019-06-11 | Active | GALLATIN |
| MTD SOUTHWEST INC | FB251853 | 2023-05-30 | Active | Gallatin |
| MTDH, LLC | DL031238 | 2013-02-07 | Active | Aberdeen |
| MTDHOUSE HOLDING LLC | DL234986 | 2022-09-20 | Inactive | Sioux Falls |
| MTDHOUSE International Corp | DB238251 | 2022-11-09 | Dissolved | Sioux Falls |
| MTDHOUSE INVESTMENT CORP | DB239379 | 2022-11-29 | Inactive | SIOUX FALLS |
| MTDHOUSE RDC CORP | DB239972 | 2022-12-08 | Dissolved | SIOUX FALLS |
| MTDS1, LLC | DL290551 | 2025-01-08 | Active | Sioux Falls |
| MTE INVESTMENTS, LLC | DL042951 | 2015-04-17 | Dissolved | SIOUX FALLS |
| MTE, LLC | DL031655 | 2013-03-14 | Dissolved | WATERTOWN |
| MTEK, LLC | DL037074 | 2014-01-21 | Dissolved | MADISON |
| MTF FINANCIAL CORPORATION | DB055152 | 2010-02-17 | Active | SCOTTSDALE |
| MTFX USA Inc. | FB228819 | 2022-06-13 | Active | Jersey City |
| MTG Creates L.L.C. | DL270371 | 2024-03-10 | Inactive | Rapid City |
| MTG LOCATING AND UTILITY SERVICES LLC | DL018635 | 2009-04-06 | Dissolved | BALTIC |
| MTG LOGISTICS, INC. | DB047133 | 2003-07-23 | Dissolved | SIOUX FALLS |
| MTG PROPERTIES, L.L.C. | DL009623 | 2005-08-01 | Active | SPEARFISH |
| MTG TRANSPORTATION CORP. | DB047132 | 2003-07-23 | Dissolved | CANTON |
| MTGLQ Investors, L.P. | FP000925 | 2015-06-10 | Active | NEW YORK |
| mtgoatgear LLC | DL204732 | 2021-06-15 | Dissolved | Rapid City |
| MTH Properties, LLC | DL226316 | 2022-05-04 | Active | Milbank |
| MTI APARTMENT 1 LLC | DL020150 | 2009-11-12 | Dissolved | MITCHELL |
| MTI DISTRIBUTING COMPANY | FB006136 | 1978-02-01 | Revoked | PLYMOUTH |
| MTJ HOLDINGS, LLC | DL012597 | 2006-11-30 | Active | Box Elder |
| MTJ Properties LLC | DL235675 | 2022-09-28 | Dissolved | SIOUX FALLS |
| MTJ SKONHOVD FARM COMPANY, LLC | DA023761 | 2011-02-11 | Active | Dell Rapids |
| MTJAY LLC | DL257429 | 2023-08-25 | Dissolved | Box Elder |
| MTJB Properties, LLC | DL292755 | 2025-02-07 | Active | Sioux Falls |
| MTL DEVELOPMENT, INC. | DB042663 | 2000-04-07 | Dissolved | — |
| MTM ACRES, LLC | DL008521 | 2005-01-19 | Active | SIOUX FALLS |
| MTM Advisory, LLC | DL151907 | 2018-08-01 | Active | SIOUX FALLS |
| MTM CARPENTRY, LLC | DL008751 | 2005-02-28 | Dissolved | Bridgewater |
| MTM Curriculum Design & Training LLC | DL297341 | 2025-04-07 | Active | SIOUX FALLS |
| MTM DEALER GROUP, LLC | DL015416 | 2007-12-28 | Inactive | BOX ELDER |
| MTM Educational Resources, Inc. | NS153572 | 2018-09-07 | Active | SIOUX FALLS |
| MTM Global Distribution LLC | DL297339 | 2025-04-07 | Active | SIOUX FALLS |
| MTM Holdings, LLC | DL288796 | 2024-12-12 | Active | Watertown |
| MTM LLC | DL329011 | 2026-05-18 | Active | Sioux Falls |
| MTM MECHANICAL, LLC | DL005354 | 2002-12-23 | Inactive | — |
| MTM New Tech, Inc. | DB058828 | 2014-03-11 | Active | FAULKTON |