| McKnight Masonry & Restoration Inc. | — | DB058301 | 2013-11-12 | Dissolved | COLMAN |
| MCKNIGHT PROPERTIES, L.L.C. | — | DL006498 | 2003-11-10 | Inactive | COLMAN |
| MCKNIGHT RANCH, INC. | — | DF052856 | 2007-10-24 | Active | Piedmont |
| MCKO, LLC | — | DL304997 | 2025-07-18 | Active | Sioux Falls |
| MCKORMICK GROUP, L.L.C. | — | DL031554 | 2013-03-06 | Dissolved | MADISON |
| MCKOTA INC. | — | FB023038 | 1999-10-13 | Active | GWINNER |
| MCL Holdings, LLC | — | DL314112 | 2025-11-19 | Active | Gettysburg |
| MCL LLC dba Longsdorf Construction | — | FL136604 | 2017-08-31 | Revoked | Eau Claire |
| MCL MILLENNIUM INVESTMENT LTD. CO. | — | DL046339 | 2015-12-17 | Active | Gillette |
| MCL, LLC | — | DL025792 | 2011-09-22 | Inactive | Littleton |
| MCLA Properties LLC | — | DL253087 | 2023-06-19 | Inactive | Sioux Falls |
| MCLAEN HARVESTING INC. | — | DB050841 | 2006-03-14 | Dissolved | Forman |
| McLain Skid Steer Services, LLC | — | DL132154 | 2017-04-03 | Inactive | RAPID CITY |
| MCLANE COMPANY, INC. | — | FB025145 | 2001-05-18 | Active | TEMPLE |
| MCLANE FOODS, INC. | — | FB015552 | 1992-09-24 | Inactive | TEMPLE |
| MCLANE FOODSERVICE DISTRIBUTION, INC. | — | FB036961 | 2013-08-28 | Active | TEMPLE |
| MCLANE FOODSERVICE, INC. | — | FB024744 | 2001-01-18 | Active | TEMPLE |
| MCLANE FORTY L.L.C. | — | DL006547 | 2003-11-24 | Inactive | SIOUX FALLS |
| MCLANE MINNESOTA, INC. | — | FB026099 | 2002-03-28 | Active | TEMPLE |
| MCLANE/BUCKEYE, INC. | — | FB028761 | 2004-08-02 | Inactive | TEMPLE |
| MCLANE/WESTERN, INC. | — | FB005620 | 1976-10-07 | Revoked | DENVER |
| MCLANE/WESTERN, INC. | — | FB011476 | 1987-05-14 | Active | TEMPLE |
| McLaren Construction, LLC | — | DL256596 | 2023-08-14 | Dissolved | Sioux Falls |
| MCLAUGHLIN - CORSON COUNTY REGIONAL RAILROAD AUTHORITY | — | RA000024 | 2006-09-26 | Active | — |
| McLaughlin Advisors, Inc. | — | DB171586 | 2019-10-14 | Active | SIOUX FALLS |
| MCLAUGHLIN AND SCHULZ INC. | — | FB000625 | 1956-06-25 | Revoked | MARSHALL |
| MCLAUGHLIN AREA JAYCEES | — | NS008314 | 1986-06-16 | Inactive | — |
| MCLAUGHLIN AREA LIONS CLUB | — | NS010100 | 1994-05-27 | Inactive | — |
| McLaughlin Auto Repair, LLC | — | DL256771 | 2023-08-15 | Active | McLaughlin |
| MCLAUGHLIN COMMUNITY YOUTH ORGANIZATION | — | NS011654 | 2000-12-08 | Dissolved | MCLAUGHLIN |
| MCLAUGHLIN CONCRETE & RESTORATION, INC. | — | DB034960 | 1994-11-03 | Inactive | — |
| MCLAUGHLIN CONCRETE, INC. | — | DB039013 | 1997-09-10 | Inactive | — |
| MCLAUGHLIN COUNTRY CLUB | — | DB003388 | 1963-10-29 | Inactive | — |
| MCLAUGHLIN DEVELOPMENT CORPORATION | — | NS007501 | 1983-01-13 | Inactive | — |
| MCLAUGHLIN ENTERPRISES, INC. | — | FB015050 | 1992-01-27 | Revoked | FARGO |
| MCLAUGHLIN EQUIPMENT CO. | — | FB009274 | 1983-12-05 | Revoked | FARGO |
| McLaughlin Family LLC | — | DL193360 | 2020-12-22 | Active | Pierre |
| MCLAUGHLIN FIRE DISTRICT | — | PF000008 | 1977-06-16 | Active | — |
| MCLAUGHLIN FUNDAY COMMITTEE | — | NS010516 | 1996-03-06 | Inactive | — |
| McLaughlin Gormley King Company | — | FB203969 | 2021-06-01 | Inactive | Minneapolis |
| MCLAUGHLIN HOUSING DEVELOPMENT CORPORATION | — | NS005248 | 1973-02-21 | Dissolved | MC LAUGHLIN |
| MCLAUGHLIN LIVESTOCK AUCTION, INC. | — | DB033722 | 1993-12-15 | Inactive | — |
| MCLAUGHLIN LIVESTOCK AUCTION, INC. | — | DB012487 | 1974-09-03 | Inactive | — |
| MCLAUGHLIN LIVESTOCK SALES, INC. | — | DB049580 | 2005-04-14 | Inactive | — |
| MCLAUGHLIN LIVESTOCK, INC. | — | DB051578 | 2006-10-02 | Dissolved | PIERZ |
| MCLAUGHLIN LODGE NO. 185 ANCIENT FREE AND ACCEPTED MASONS | — | NS003096 | 1920-03-22 | Inactive | — |
| MCLAUGHLIN MOBILE OIL CHANGES LLC | — | DL017463 | 2008-10-02 | Inactive | STEEN |
| Mclaughlin Rentals LLC | — | DL210422 | 2021-09-17 | Active | Aberdeen |
| MCLAUGHLIN RODEO ASSOCIATION, INC. | — | NS002871 | 1951-08-02 | Active | MC LAUGHLIN |
| MCLAUGHLIN ROPING CLUB, INC. | — | NS000722 | 1964-07-14 | Inactive | — |
| MCLAUGHLIN TERMINAL, LLC | — | DL013046 | 2007-01-23 | Inactive | ABERDEEN |
| McLaughlin Trucking, LLC. | — | DL192921 | 2020-12-15 | Active | Madison |
| MCLAUGHLIN, PIVEN, VOGEL SECURITIES, INC. | — | FB014745 | 1991-08-14 | Inactive | — |
| MCLAURY ENGINEERING, INC. | — | DB040648 | 1998-10-28 | Active | Elk Point |
| MCLAURY FAMILY, L.L.C. | — | DL001309 | 1997-07-17 | Active | Mission Hill |
| MCLEAN & NELSON, LLC | — | DL037994 | 2014-03-24 | Active | RAPID CITY |
| MCLegacy, LLC | — | DL230882 | 2022-07-20 | Dissolved | Brookings |
| MCLELLAN FAMILY HOMESTEAD, L.L.C. | — | DL017549 | 2008-10-17 | Inactive | Lantry |
| McLellan Spray Foam And Bed Liner, LLC | — | DL035437 | 2013-10-15 | Dissolved | MOBRIDGE |
| McLeod Buffalo LLC | — | DL269745 | 2024-03-01 | Active | Rapid City |
| MCLEOD PONTIAC-CADILLAC INC. | — | 19590166D | 1959-04-27 | Suspended | — |
| MCLEOD, STOLTZ, MURPHY, LLC | — | FL003119 | 2006-09-25 | Revoked | ROSELAND |
| MCLEODUSA INFORMATION SERVICES LLC | — | FL005132 | 2010-05-12 | Inactive | Little Rock |
| MCLEODUSA INFORMATION SERVICES, INC. | — | FB024350 | 2000-09-29 | Inactive | FAIRPORT |
| MCLEODUSA INTEGRATED BUSINESS SYSTEMS, INC. | — | FB024510 | 2000-11-06 | Inactive | CEDAR RAPIDS |
| MCLEODUSA NETWORK SERVICES, INC. | — | FB021091 | 1998-03-13 | Inactive | FAIRPORT |
| MCLEODUSA PUBLISHING COMPANY | — | FB013774 | 1990-08-17 | Inactive | UNIONDALE |
| MCLEODUSA PURCHASING, L.L.C. | — | FL000666 | 2000-03-21 | Inactive | Little Rock |
| MCLEODUSA TELECOMMUNICATIONS SERVICES, INC. | — | FB017541 | 1994-12-27 | Inactive | FAIRPORT |
| MCLEODUSA TELECOMMUNICATIONS SERVICES, L.L.C. | — | FL005134 | 2010-05-12 | Active | Little Rock |
| McLouth Ventures, LLC | — | DL228445 | 2022-06-07 | Active | Lennox |
| MCLP ASSET COMPANY, INC. | — | FB039555 | 2016-09-09 | Active | NEW YORK |
| MCLS REAL ESTATE LLC | — | DL333297 | 2026-07-10 | Active | WATERTOWN |
| MCLUCKIE ENTERPRISES, LLC | — | DL032166 | 2013-04-29 | Inactive | CLOYNE |
| MCM CAPITAL MANAGEMENT, L.L.C. | — | FL000432 | 1998-12-30 | Active | EVANSTON |
| MCM Commodities, LLC | — | DL293217 | 2025-02-13 | Active | Sioux Falls |
| MCM Construction, LLC | — | DL322459 | 2026-03-05 | Active | Box Elder |
| MCM HOLDINGS, INC. | — | DB142590 | 2018-01-15 | Active | Kearney |
| MCM Hospitality, LLC | — | DL327929 | 2026-05-05 | Active | Piedmont |
| MCM INVESTMENTS, INC. | — | DB054949 | 2009-12-04 | Active | Rapid City |
| MCM LLC | — | DL316724 | 2026-01-01 | Active | HOT SPRINGS |
| MCM PROPERTIES, LLC | — | DL025820 | 2011-09-23 | Inactive | WATERTOWN |
| MCM, INC. | — | DB024133 | 1985-01-25 | Dissolved | — |
| MCM, LLP | — | DR001618 | 2013-12-23 | Inactive | HOT SPRINGS |
| MCMACKEN ENTERPRISES, INC. | — | DB021044 | 1981-10-07 | Inactive | — |
| MCMACKEN PUBLISHING, INC. | — | DB046494 | 2003-02-18 | Inactive | — |
| McMackin Motors LLC | — | DL267633 | 2024-02-01 | Dissolved | Rapid City |
| McMahon Advisor SD, L.L.C. | — | DL299575 | 2025-05-06 | Active | Des Moines |
| MCMAHON CHEVROLET, OLDSMOBILE, AND BUICK, INC. | — | DB020910 | 1981-08-20 | Inactive | — |
| McMahon Construction, LLC | — | DL219126 | 2022-01-24 | Active | Hartford |
| MCMAHON INVESTMENTS, INC. | — | DB006779 | 1946-08-06 | Active | RAPID CITY |
| MCMAHON LAW OFFICE, P.C. | — | DB044807 | 2001-12-13 | Dissolved | — |
| McMahon Properties LLC | — | DL210880 | 2021-09-23 | Dissolved | Wasta |
| McMan & Company Inc. | — | DB174728 | 2019-12-20 | Active | Box Elder |
| McMan Enterprises LLC | — | DL186818 | 2020-08-28 | Inactive | Sioux Falls |
| McManigal Real Estate, Inc. | — | DB131296 | 2017-03-06 | Active | RAPID CITY |
| MCMANUS CATTLE, LLC | — | DA010635 | 2006-01-30 | Active | VOLIN |
| McMANUS FARMS, LLC | — | DL331421 | 2026-06-17 | Active | FULTON |
| McManus, Gerald D., LLC | — | DL236161 | 2022-10-05 | Dissolved | Custer |
| MCMANUS, INC. | — | DB057590 | 2013-02-25 | Dissolved | SIOUX FALLS |
| MCMARIDAN, INC. (SIOUX FALLS) | — | DB020784 | 1981-07-08 | Dissolved | — |
| MCMASTER GRAIN COMPANY | — | FB020672 | 1997-11-03 | Revoked | SOUTH SIOUX CITY |
| MCMASTER GRAIN COMPANY | — | FB008866 | 1983-03-29 | Revoked | S. SIOUX CITY |
| MCMASTERS GRAVEL AND CONSTRUCTION, INC. | — | DB039966 | 1998-04-23 | Active | LAKE PRESTON |
| MCMC LLC | — | FL043032 | 2014-10-09 | Inactive | Memphis |
| MCMC Services, LLC | — | FL193551 | 2020-12-24 | Active | Atlanta |
| MCMILLAN & ASSOCAITES, LLC | — | FL000712 | 2000-06-05 | Revoked | RICHLANDS |
| McMILLAN BADLANDS II, LLC | — | DL134974 | 2017-07-12 | Active | Fort Worth |
| MCMILLAN BADLANDS, LLC | — | DL031938 | 2013-04-05 | Active | Dallas |
| MCMILLAN ENTERPRISES, INC. | — | DB045365 | 2002-04-23 | Active | IROQUOIS |
| MCMILLAN FARMS, INC. | — | DF031543 | 1992-03-16 | Active | HENRY |
| MCMILLAN PAZDAN SMITH, LLC | — | FL329236 | 2026-05-20 | Active | Greenville |
| McMillen, Inc. | — | FB255428 | 2023-07-26 | Active | Boise |
| MCML, LLC | — | DL177059 | 2020-02-07 | Active | Hot Springs |
| MCML1950, LLC | — | DL193216 | 2021-01-01 | Active | Spearfish |
| MCMONAGLE ENTERPRISES INC. | — | DB038309 | 1997-03-07 | Active | Custer, |
| McMoore Management Group Inc. | — | DB220259 | 2022-02-09 | Suspended | Minneapolis |
| MCMORAN OIL & GAS CO. | — | FB012894 | 1989-08-07 | Inactive | WILMINGTON |
| MCMULLEN AND LOVETT, INC. | — | 19630106D | 1963-01-03 | Suspended | — |
| McMullen Properties LLC | — | DL320054 | 2026-02-05 | Active | Watertown |
| McMullin Real Estate, Inc. | — | DB262907 | 2023-11-20 | Active | Rapid City |
| MCNABB RENTALS, L.L.C. | — | DL027078 | 2012-02-01 | Dissolved | RAPID CITY |
| McNabb Technologies, LLC | — | DL045917 | 2015-11-20 | Active | MOUNT PROSPECT |
| MCNAIR Consulting L.L.C. | — | DL220168 | 2022-02-08 | Active | Sioux Falls |
| MCNAIR LLC | — | DL194956 | 2021-01-19 | Active | RAPID CITY |
| MCNALLY INDUSTRIES, INC. | — | DB030733 | 1991-06-10 | Inactive | — |
| McNally Operations LLC | — | DL177245 | 2020-02-13 | Active | Yankton |
| MCNAMARA COMPANY | — | FB017741 | 1995-03-24 | Inactive | ST PAUL |
| McNamara Plumbing LLC | — | DL207742 | 2021-08-04 | Active | Watertown |
| MCNAMARA TRUCKING, LLC | — | DL025051 | 2011-06-28 | Dissolved | HAZEL |
| McNames Krantz, LLC | — | DL147892 | 2018-05-06 | Active | Watertown |
| McNary Trucking, LLC | — | DL160599 | 2019-02-19 | Active | Mitchell |
| McNaughton Investments, LLC | — | DL173060 | 2019-11-15 | Dissolved | Dakota Dunes |
| MCNAUGHTON INVESTMENTS, LLC | — | DL020028 | 2009-10-26 | Dissolved | VERMILLION |
| MCNEARY & MCNEARY L.L.P. | — | DR000090 | 1996-10-15 | Inactive | ABERDEEN |
| McNeely Farms LLC | — | FL286225 | 2024-11-01 | Active | Hudson |
| McNeese Properties, LLC | — | DL049256 | 2016-07-14 | Active | Belle Fourche |
| MCNEIL & COMPANY, INC. | — | FB019166 | 1996-07-29 | Revoked | CORTLAND |
| MCNEIL & COMPANY, INC. | — | FB021661 | 1998-08-06 | Active | Cortland |
| MCNEIL AND ZVONEK, LLC | — | DL012452 | 2006-11-07 | Active | HURON |
| MCNEIL FARMS, INC. | — | DF054168 | 2008-12-29 | Active | STRATFORD |
| MCNEIL INDUSTRIAL, INC. | — | FB287722 | 2024-11-25 | Active | GRETNA |
| MCNEIL INSURANCE AGENCY, INC. | — | DB054167 | 2008-12-29 | Active | STRATFORD |
| McNeil Investment, LLC | — | DL227049 | 2022-05-16 | Active | Stratford |
| McNeil Investments SD LLC | — | DL144931 | 2018-03-07 | Active | Rapid City |
| MCNEIL LAND LIMITED PARTNERSHIP I | — | DP001913 | 2008-07-17 | Active | — |
| MCNEIL LAND LIMITED PARTNERSHIP II | — | DP001914 | 2008-07-17 | Active | — |
| McNEIL MANAGEMENT I, LLC | — | DL193037 | 2020-12-16 | Active | Stratford |
| McNEIL MANAGEMENT II, LLC | — | DL193040 | 2020-12-16 | Active | Stratford |
| MCNEIL PROPERTIES, LLC | — | DL024389 | 2011-04-18 | Active | SIOUX FALLS |
| MCNEIL REAL ESTATE DEVELOPMENT, L.L.C. | — | DL006419 | 2003-10-20 | Inactive | HARRISBURG |
| MCNEILL CONSTRUCTION, INC. | — | DB042186 | 1999-12-20 | Dissolved | DEADWOOD |
| McNeill PLLC | — | FL289984 | 2024-12-31 | Active | BALA CYNWYD |
| MCNEILUS FINANCIAL SERVICES, INC. | — | FB013676 | 1990-07-05 | Revoked | DODGE CENTER |
| MCNEILUS FINANCIAL, INC. | — | FB026101 | 2002-03-28 | Active | DODGE CENTER |
| MCNEILUS FINANCIAL, INC. | — | FB012286 | 1988-08-29 | Revoked | DODGE CENTER |
| McNellis LLC | — | DL198346 | 2021-03-10 | Active | Belle Fourche, SD |
| McNenny Digital Marketing LLC | — | DL332222 | 2026-06-28 | Active | Belle Fourche |
| MCNENNY RANCH, INC. | — | DF005686 | 1967-01-21 | Active | STURGIS |
| MCNEW II PROPERTIES, L.L.C. | — | DL000839 | 1996-05-28 | Inactive | — |
| MCNEW PROPERTIES, L.L.C. | — | DL000607 | 1995-11-02 | Inactive | SIOUX FALLS |
| MCNIC CONSTRUCTION USA INC | — | DB229705 | 2022-06-28 | Active | Watertown |
| McNickle Enterprises LLC | — | DL223465 | 2022-03-24 | Active | Pierre |
| MCNICKLE ENTERPRISES, INC. | — | DB019897 | 1980-07-29 | Dissolved | — |
| McNickle Property Management, LLC | — | DL168969 | 2019-08-19 | Active | Aberdeen, SD |
| McNish, LLC | — | FL320757 | 2026-02-13 | Active | Aurora |
| MCNK Land, LLC | — | DL214701 | 2021-11-17 | Active | Sturgis |
| MCNK, Inc. | — | DB060903 | 2016-05-20 | Dissolved | STURGIS |
| MCNULTY ENTERPRISES, LLC | — | DL157212 | 2018-12-05 | Active | Keystone |
| McNulty Investments LLC | — | DL189541 | 2020-10-17 | Active | Keystone |
| McNutt Construction, LLC | — | DL302576 | 2025-06-16 | Active | Doland |
| MCO GAS PROCESSING, INC. | — | FB006976 | 1980-03-12 | Inactive | LOS ANGELES |
| MCO PROPERTIES INC. | — | FB008830 | 1983-03-07 | Inactive | HOUSTON |
| MCO RESOURCES (INTEGRATED) CORP. | — | FB008585 | 1982-09-20 | Inactive | HOUSTON |
| MCORTEZ, L.L.C. | — | FL321686 | 2026-02-24 | Active | Sioux Falls |
| MCP Business Solutions, Inc. | — | FB210914 | 2021-09-24 | Active | Topeka |
| McP Construction LLC | — | DL193371 | 2020-12-22 | Active | Sioux Falls |
| MCP Development, Inc. | — | FB210855 | 2021-09-23 | Active | Topeka |
| MCP IP, LLC | — | DL027645 | 2012-03-22 | Active | SPARTA |
| MCP LLC | — | DL173396 | 2019-11-22 | Inactive | Sioux Falls |
| MCP, L.L.C. | — | DL001191 | 1997-04-10 | Inactive | — |
| MCPAV INC. | — | DB028916 | 1989-11-29 | Inactive | — |
| MCPC, INC. | — | FB027497 | 2003-07-17 | Revoked | STRONGSVILLE |
| McPeck Aviation, LLC | — | DL155559 | 2018-10-24 | Active | Pierre |
| McPeck, LLC | — | DA048065 | 2016-04-18 | Active | Gettysburg |
| McPeck, LLC | — | DL048065 | 2016-04-18 | Active | Gettysburg |
| McPeek Properties LLC | — | DL131353 | 2017-03-08 | Active | MITCHELL |
| McPhee Construction LLC | — | DL272688 | 2024-04-11 | Dissolved | Watertown |
| MCPHERSON AUCTION COMPANY | — | DB026548 | 1987-07-15 | Inactive | — |
| MCPHERSON CONCRETE STORAGE SYSTEMS, INC. | — | FB254439 | 2023-07-11 | Active | MCPHERSON |
| MCPHERSON CONTRACTORS, INC. | — | FB152528 | 2018-08-15 | Inactive | Topeka |
| MCPHERSON COUNTY ABSTRACT & TITLE COMPANY, INC. | — | DB036562 | 1995-12-20 | Active | Herreid |
| MCPHERSON COUNTY ABSTRACT COMPANY | — | DB004795 | 1929-10-02 | Dissolved | — |
| MCPHERSON COUNTY CONSERVATION DISTRICT | — | DM009373 | 1954-05-14 | Active | LEOLA |
| MCPHERSON COUNTY FARM, L.L.C. | — | DL003762 | 2001-05-08 | Dissolved | — |
| MCPHERSON GRAIN CLEANING, INC. | — | DB042179 | 1999-12-20 | Inactive | — |
| McPherson Home Improvements LLC | — | DL263230 | 2023-11-27 | Active | Belle Fourche |
| MCPHERSON LAWN CARE LLC | — | DL296420 | 2025-03-25 | Inactive | Burbank |
| McPherson Propane Holding Co. | — | DB174275 | 2019-12-12 | Active | STURGIS |
| McPherson Propane Leasing, LLC | — | DL174279 | 2019-12-12 | Active | STURGIS |