| M.P. Shashikant Medical Consulting Prof., LLC | DL168165 | 2019-08-01 | Dissolved | Norfolk |
| M.P.G. PIPELINE CONTRACTORS, L.L.C. | FL213876 | 2021-11-05 | Active | HOUSTON |
| M.Perry Accounting, LLC | DL331327 | 2026-06-16 | Active | Ethan |
| M.R. COSAND, LTD. | DB010890 | 1972-01-03 | Inactive | — |
| M.R. FIT LLC | DL155163 | 2018-10-15 | Dissolved | Sioux Falls |
| M.R. GUSTAFSON SELF-DIRECTED IRA, LLC | DL013469 | 2007-03-20 | Dissolved | RAPID CITY |
| M.R. INVESTMENTS GROUP LLC | DL309050 | 2025-09-11 | Active | SIOUX FALLS |
| M.R. Kruse, LLC | DL272669 | 2024-04-11 | Active | Sioux Falls |
| M.R. MCDONALD, CONSTRUCTION, INC. | DB034446 | 1994-06-03 | Inactive | — |
| M.R. MEAD & COMPANY, INC. | FB035613 | 2011-12-12 | Revoked | NORTH RIVERSIDE |
| M.R.BOBBY LLC | DL023428 | 2011-01-06 | Dissolved | ABERDEEN |
| M.R.F., INC. | DB024702 | 1985-09-12 | Inactive | — |
| M.R.G., INC. | DB031969 | 1992-07-23 | Inactive | — |
| M.R.H. HAIR DESIGN, INC. | DB048014 | 2004-03-11 | Dissolved | SIOUX FALLS |
| M.R.K. & K., INC. | DB037843 | 1996-11-12 | Dissolved | SIOUX FALLS |
| M.R.K. & M., INC. | DB025765 | 1986-10-10 | Inactive | — |
| M.R.N.C. INC. | DF038240 | 1997-02-20 | Active | HERREID |
| M.R.P. ENTERPRISES, INC. | DB038593 | 1997-05-19 | Dissolved | CHAMBERLAIN |
| M.R.P., LLC | DL032125 | 2013-04-22 | Active | SIOUX FALLS |
| M.R.T.H.G. FEEDERS, INCORPORATION | DB009696 | 1969-06-18 | Inactive | — |
| M.R.W. PUBLISHING, INC. | DB045723 | 2002-07-25 | Dissolved | ANNISTON |
| M.S. DELNANCE, INC. | DB030024 | 1990-12-04 | Dissolved | CHAMBERLAIN |
| M.S. ELECTRONICS, L.L.C. | FL006679 | 2013-01-18 | Revoked | BRANCHBURG |
| M.S. LEE INTERNATIONAL, LLC | FL001996 | 2004-06-08 | Revoked | KENNESAW |
| M.S. MAIL & MARKETING, LLP | DR000358 | 1999-03-29 | Dissolved | — |
| M.S. Mail LLC | DL038277 | 2014-04-09 | Active | DEADWOOD |
| M.S. PRODUCERS, INC. | DB022775 | 1983-10-04 | Inactive | — |
| M.S. Roby Consulting LLC | DL168017 | 2019-07-29 | Inactive | Watertown |
| M.S. TROM ENTERPRISES, INC. | DB041313 | 1999-04-19 | Active | Lake Ozark |
| M.S.C. OF IOWA, INCORPORATED | FB011936 | 1988-02-22 | Revoked | SPENCER |
| M.S.C., INC. | FB011935 | 1988-02-22 | Revoked | BLOOMINGTON |
| M.S.F. FERTILIZER, INC. | DB013513 | 1976-04-09 | Inactive | — |
| M.S.J.J.-TRAMP PROPERTY MANAGEMENT, INC. | DB032886 | 1993-04-05 | Dissolved | YANKTON |
| M.S.N.-IV, L.L.P. | FR000039 | 1998-01-30 | Inactive | LEXINGTON |
| M.S.R., L.L.C. | DL004807 | 2002-05-31 | Active | LENNOX |
| M.S.W. SD LLC | DL207781 | 2021-08-09 | Active | Sioux Falls |
| M.T. AND R.C. SMITH INSURANCE, INC. | DB011167 | 1972-07-03 | Active | YANKTON |
| M.T. ENTERPRISES, INC. | DB023296 | 1984-04-02 | Inactive | — |
| M.T. HOMES, INC. | DB050856 | 2006-03-17 | Dissolved | — |
| M.T. POCKETS, INC. | DB035201 | 1994-12-28 | Dissolved | — |
| M.T.B. AVIATION INCORPORATED | DB029953 | 1990-10-29 | Inactive | — |
| M.T.C mountain tint company LLC | DL250348 | 2023-05-08 | Active | Hot Springs |
| M.T.G. CORPORATION | DB025007 | 1986-01-03 | Dissolved | — |
| M.V. CASEY LAND CORPORATION | DB009671 | 1969-05-31 | Dissolved | — |
| M.V.P. ENTERPRISES, LLC | DL006060 | 2003-07-16 | Inactive | ABERDEEN |
| M.V.P. HOLDINGS LLC | DL010732 | 2006-02-16 | Dissolved | ABERDEEN |
| M.VENT.INC. | DB041008 | 1999-01-25 | Dissolved | RAPID CITY |
| M.W. PERSONS AND ASSOCIATES, INC. | FB018087 | 1995-07-26 | Inactive | BRAINERD |
| M.W. Thomas and Company LLC | DL300579 | 2025-05-19 | Active | Sioux Falls |
| M.Z. Enterprise, LLC | DL231269 | 2022-07-25 | Active | Miller |
| M/A-COM INFORMATION SYSTEMS, INC. | FB004848 | 1974-12-06 | Inactive | ROCKVILLE |
| M/A-COM PRIVATE RADIO SYSTEMS, INC. | FB023578 | 2000-02-25 | Revoked | BOCA RATON |
| M/A-COM, INC. | FB026865 | 2002-12-13 | Inactive | LOWELL |
| M/C PROFESSIONAL ASSOCIATES, INC. | DB025583 | 1986-07-24 | Dissolved | — |
| M/Y ENTERPRISES, INC. | DB020386 | 1981-02-03 | Inactive | — |
| M1 Construction LLC | DL310468 | 2025-09-30 | Active | Mitchell |
| M1 Roofing LLC | DL323067 | 2026-03-11 | Active | Mitchell |
| M1 SUPPORT SERVICES, LIMITED PARTNERSHIP | FP000732 | 2009-04-09 | Active | DENTON |
| M1 Tuning and Consulting, LLC | DL275436 | 2024-05-21 | Active | HARRISBURG |
| M1, LLC | DL315609 | 2025-12-12 | Active | Sioux Falls |
| M1720, LLC | DL022359 | 2010-09-08 | Inactive | BURBANK |
| M1H2, L.L.C. | DL044040 | 2015-06-18 | Active | VERMILLION |
| M1R Marketing LLC | DL232928 | 2022-08-19 | Active | Watertown |
| M2 Acres, LLC | DL215366 | 2021-11-30 | Active | Huron |
| M2 Design, LLC | DL289744 | 2024-12-27 | Inactive | Harrisburg |
| M2 Deuce LLC | DL267859 | 2024-02-05 | Inactive | Chester |
| M2 Enterprises LLC | DL209851 | 2021-09-10 | Active | Sioux Falls |
| M2 HOSPITALITY, LLC | DL017857 | 2008-12-10 | Active | SISSETON |
| M2 LLC | DL295453 | 2025-03-13 | Active | Sioux Falls |
| M2 Pawsitive Agency LLC | DL260533 | 2023-10-11 | Active | Rapid City |
| M2 PERFORMANCE HORSES, LLC | DL186272 | 2020-08-19 | Active | BROOKINGS |
| M2 Video Productions, Inc | DB290502 | 2025-01-08 | Active | Sioux Falls |
| M2, LLC | DL212979 | 2021-10-25 | Dissolved | Sioux Falls |
| M201J, L.L.C. | DL003397 | 2000-12-12 | Active | SIOUX FALLS |
| M2H Properties, LLC | DL149400 | 2018-06-08 | Active | PIERRE |
| M2i, LLC | FL287825 | 2024-11-26 | Active | Phoenix |
| M2JK ENTERTAINMENT LTD. CO. | DL024787 | 2011-05-25 | Suspended | Sisseton |
| M2L2, LLC | DL150710 | 2018-07-05 | Inactive | Potomac Falls |
| M2M APPRAISAL SERVICES, LLC | FL005637 | 2011-04-18 | Inactive | FREDERICK |
| M2P3 ENTERPRISE, LLC | DL254490 | 2023-07-12 | Active | PIERRE |
| M2R Enterprises, L.L.C. | DL043352 | 2015-04-23 | Active | Sioux Falls |
| M2S, LLC | DL024257 | 2011-03-31 | Inactive | SIOUX FALLS |
| M3 ARCHITECTS, LTD. | DB044297 | 2001-07-05 | Inactive | — |
| M3 Contracting LLC | FL142172 | 2018-01-05 | Active | Maple Lake |
| M3 Engeneering & Technology Corporation | FB321231 | 2026-02-19 | Active | TUCSON |
| M3 Engineering LLC | DL267637 | 2024-02-01 | Active | Custer |
| M3 Enterprises, LLC | DL253583 | 2023-06-26 | Active | Hot Springs |
| M3 FEDERAL CONTRACT PRACTICE GROUP, LLC | FL004427 | 2009-02-09 | Revoked | ENDICOTT |
| M3 HVAC, INC. | FB334440 | 2026-07-22 | Active | Anaheim |
| M3 INSURANCE SOLUTIONS, INC. | FB033126 | 2008-12-15 | Active | Madison |
| M3 INTERNET SERVICES, INC. | DB045686 | 2002-07-12 | Inactive | PIERRE |
| M3 Investments L.L.C. | DL267282 | 2024-01-27 | Active | Hartford |
| M3 Logistics, Inc. | DB197376 | 2021-02-25 | Dissolved | Madison |
| M3 Ministries | NS148798 | 2018-05-25 | Dissolved | SIOUX FALLS |
| M3 NEWMAN, INC. | DB043749 | 2001-02-01 | Dissolved | — |
| M3 PROPERTIES, L.L.C. | DL011025 | 2006-03-31 | Dissolved | ABERDEEN |
| M3 Technology, L.L.C. | FL157100 | 2018-12-04 | Active | Matawan |
| M3 Ventures LLC | DL160762 | 2019-02-23 | Active | RAPID CITY |
| M3, LLC | FL302140 | 2025-06-10 | Active | LAWRENCEVILLE |
| M33M CLOTHING, LLC | DL015100 | 2007-11-19 | Inactive | SIOUX FALLS |
| M33M INVESTMENTS, LLC | DL015017 | 2007-11-07 | Inactive | SIOUX FALLS |
| M360 Environmental and Industrial Solutions, Inc. | FB035132 | 2011-04-28 | Active | GOLDEN VALLEY |
| M3A ARCHITECTURE, PLLC | FL044426 | 2016-06-28 | Revoked | JACKSON |
| M3AVIATION, INC. | DB040300 | 1998-07-16 | Inactive | — |
| M3B, LLC | DL033387 | 2013-08-07 | Active | Sioux Falls |
| M3C Holdings, LLC | FL180919 | 2020-05-04 | Active | Clifton |
| M3C, LLC | DL015077 | 2007-11-15 | Active | RAPID CITY |
| M3C3 LLC | DL130555 | 2017-02-10 | Active | — |
| M3IEXPORT, INC. | DB040498 | 1998-09-14 | Inactive | — |
| M3S Holdings LLC | DL274513 | 2024-05-07 | Active | Sioux Falls |
| M3S Management, LLC | DL142074 | 2018-01-04 | Dissolved | Watertown |
| M3S, LLC | DL156561 | 2018-11-19 | Dissolved | Sioux Falls |
| M4 Holdings LLC | DL219259 | 2022-01-26 | Active | WEBSTER |
| M4, LLC | DL324063 | 2026-03-23 | Active | Faith |
| M4M Properties LLC | DL217815 | 2022-01-05 | Active | Sturgis |
| M5 Holdings LLC | DL217804 | 2022-01-04 | Active | Rapid City |
| M5 Industries LLC | DL300527 | 2025-05-18 | Active | Rapid City |
| M5 NETWORKS, LLC | FL043013 | 2014-09-30 | Inactive | SUNNYVALE |
| M5 Properties LLC | DL293246 | 2025-02-13 | Active | Belle Fourche |
| M5 Seeds, LLC | DL041227 | 2014-11-26 | Active | DOLAND |
| M51 Media LLC | DL196314 | 2021-02-08 | Dissolved | Rapid City |
| M620, LLC | DL243113 | 2023-01-27 | Active | Sanford |
| M633, LLC | DL334502 | 2026-07-23 | Active | Spearfish |
| M67, LLC | DL142355 | 2018-01-09 | Active | HILLIARD |
| M7 adjusting LLC | DL271154 | 2024-03-20 | Active | Belle Fourche |
| M7 AEROSPACE GP LLC | FL005095 | 2010-04-13 | Inactive | HOUSTON |
| M7 AEROSPACE LIMITED PARTNERSHIP | FP000755 | 2010-04-01 | Inactive | SAN ANTONIO |
| M7 AEROSPACE LLC | FL006066 | 2012-01-12 | Inactive | SAN ANTONIO |
| M7 STAFFING & BUSINESS SOLUTIONS, LLC | FL006512 | 2012-09-27 | Revoked | SAN ANTONIO |
| M9 Properties, LLC | DL181750 | 2020-05-18 | Dissolved | Brandon |
| MA & PA'S, LLC | DL023507 | 2011-01-13 | Dissolved | NISLAND |
| MA AND PA'S C STORE, L.L.C. | DL002219 | 1999-04-23 | Dissolved | GAYVILLE |
| Ma and Pa's New and Used LLC | DL174201 | 2019-12-11 | Dissolved | CUSTER |
| MA Anderson Properties LLC | DL271732 | 2024-03-29 | Active | DEADWOOD |
| MA Blooming Balloons LLC | DL320640 | 2026-03-12 | Active | Harrisburg |
| MA Construction LLC | DL218151 | 2022-01-10 | Dissolved | Sioux Falls |
| Ma Cualli RP Properties LLC | DL288634 | 2024-12-11 | Active | Rapid City |
| MA DA DOR A, INC. | DB023192 | 1984-02-29 | Inactive | — |
| MA HOLDINGS, LLC | DL029263 | 2012-08-30 | Inactive | SIOUX FALLS |
| MA Hotels LLC | DL237802 | 2022-11-02 | Dissolved | Woodland |
| MA Land LLLP | DP211219 | 2021-09-29 | Active | WHITE LAKE |
| MA LIQUIDATION COMPANY | DB059777 | 2015-01-26 | Dissolved | RAPID CITY |
| MA Ltd., LLC | DL324298 | 2026-03-25 | Active | Sioux Falls |
| MA Murphy Leasing, LLC | FL313653 | 2025-11-14 | Active | North Sioux City |
| MA Schmidt LLC | DL257868 | 2023-08-31 | Active | Box Elder |
| MA SS LLC | DL289425 | 2024-12-19 | Active | Pierre |
| MA Studios LLC | DL313131 | 2025-11-07 | Active | Sioux Falls |
| MA Swim Academy Corporation | DB257222 | 2023-08-24 | Dissolved | Watertown |
| Ma T's Land LLC | DL206879 | 2021-07-21 | Active | Rapid City |
| MA YU TECA INC. | NS010215 | 1994-11-22 | Inactive | — |
| MA&D, L.L.C. | DL041672 | 2014-12-22 | Active | RAPID CITY |
| MA'S HOUSE VINTAGE, LLC | DL314903 | 2025-12-02 | Active | BROOKINGS |
| Ma's Kitchen, LLC | DL050107 | 2016-09-28 | Dissolved | CHAMBERLAIN |
| Ma's Paws Jewelry, Dreamcatchers & More, LLC | DL201149 | 2021-04-20 | Dissolved | Winner |
| MA's Properties, LLC | DL149049 | 2018-05-31 | Active | Huron |
| MA-GO LEASING CORPORATION | FB009471 | 1984-03-26 | Revoked | ST. PAUL |
| MA-LU CORPORATION | 19650133D | 1965-09-03 | Dissolved | — |
| MA-NORTH INVESTMENTS, INC. | DB032269 | 1992-10-28 | Dissolved | — |
| Ma-Sando Sweet Finger LLC | DL322165 | 2026-03-02 | Active | Sioux Falls |
| MA-STOUGHTON INVESTMENTS, INC. | DB032270 | 1992-10-28 | Inactive | — |
| MAA KALI LLC | DL283274 | 2024-09-17 | Active | Huron |
| MAA, LLC | DL215997 | 2021-12-08 | Active | Sioux Falls |
| MAABU HOMECARE LLC | DL263722 | 2023-12-05 | Dissolved | Sioux falls |
| MAAC Holdings, LLC | DL156653 | 2018-11-21 | Inactive | Rapid City |
| MAAC INC. | FB033384 | 2009-04-09 | Revoked | MONTEVIDEO |
| MAAC VENTURES, LLC | DL183626 | 2020-06-25 | Active | Hartford |
| MAAC, Inc. | DB187022 | 2020-09-30 | Dissolved | Montevideo |
| MAAC, INC. | FB012574 | 1989-02-03 | Revoked | MONTEVIDEO |
| MAACH3, INC. | DB225765 | 2022-04-26 | Active | Sioux Falls |
| Maadasin Trucking LLC | DL302579 | 2025-06-16 | Active | Rapid City |
| MAAF Capital Management LLC | DL231946 | 2022-08-03 | Active | Pierre |
| MAAG & MACK INVESTMENTS, LLP | DR000940 | 2005-08-29 | Inactive | — |
| Maag Brother Farms, LLC | DL164672 | 2019-05-15 | Active | Highlands Ranch |
| Maag Farms LLC | DL133749 | 2017-05-25 | Active | Florence |
| MAAG PROPERTIES L.L.C. | DL010184 | 2005-11-17 | Active | WATERTOWN |
| MAAK Education, LLC | DL191613 | 2020-11-20 | Active | Rapid city |
| MAAN, INC. | DB049513 | 2005-03-31 | Active | HOT SPRINGS |
| MAAngels LLC | DL330015 | 2026-05-30 | Active | Spearfish |
| Maar trans LLC | DL047563 | 2016-03-16 | Dissolved | SIOUX FALLS |
| MAAS & ASSOCIATES, INC. | DB029072 | 1990-01-12 | Active | PARKSTON |
| MAAS & SCHMIDT ENTERPRISES, L.L.C. | DL002349 | 1999-07-06 | Dissolved | FREEMAN |
| Maas Built LLC | DL325863 | 2026-04-12 | Active | Gary |
| MAAS COMPANIES INC. | FB034980 | 2011-03-03 | Active | ROCHESTER |
| MAAS FOUNDATION | NS008428 | 1986-12-15 | Dissolved | WATERTOWN |
| MAASKE, INC. | DB054948 | 2009-12-04 | Dissolved | JEFFERSON |
| MAASS AGRONOMIC SERVICES, INC. | DB030062 | 1990-12-19 | Dissolved | Big Stone City |
| Maass Enterprises, LLC | DL199445 | 2021-03-25 | Active | HOT SPRINGS |
| Maassen Ag Transport LLC | DL284540 | 2024-10-05 | Inactive | Valley Springs |
| Maassen Farms, LLC | DL177057 | 2020-02-07 | Active | Canton |
| Maatr Biotech LLC | DL321540 | 2026-02-23 | Active | Rapid City |
| Maaz Bin Badshah MD, PLLC | DL278551 | 2024-07-10 | Active | Sioux Falls |
| MAB Enterprise, Inc. | DB059104 | 2014-05-28 | Active | Rapid City |
| MAB Enterprises, Inc. | DB206687 | 2021-07-19 | Active | Brookings |
| MAB RENTALS, LLC | DL199352 | 2021-03-24 | Active | Sioux Falls |
| MAB SD LLC | DL260501 | 2023-10-11 | Active | Sioux Falls |
| MAB SURGICAL, L.L.C. | DL009410 | 2005-06-17 | Dissolved | Dakota Dunes |
| MAB, LLC | DL197385 | 2021-02-25 | Inactive | ABERDEEN |
| MABB, LLC | DL325743 | 2026-04-10 | Active | Wentworth |
| MABCO INVESTMENTS, LLC | DL005379 | 2002-12-26 | Dissolved | SIOUX FALLS |
| MABE Ag, LLC | DL275459 | 2024-05-21 | Active | Cavour |