| M & O AGENCIES, INCORPORATED | FB026264 | 2002-05-20 | Revoked | CASA GRANDE |
| M & O INVESTMENTS, INC. | DB040596 | 1998-10-13 | Inactive | — |
| M & O PROPERTIES, LLC | DL029154 | 2012-08-20 | Active | SIOUX FALLS |
| M & P Contractors, LLC | DL041028 | 2014-11-10 | Dissolved | GAYVILLE |
| M & P DEVELOPMENT, LLC | DL022594 | 2010-10-08 | Inactive | RAPID CITY |
| M & P ENTERPRISE LIMITED | DB016441 | 1979-02-21 | Inactive | — |
| M & P Eschenbaum Farm, LLC | DL142994 | 2018-01-23 | Active | ORIENT |
| M & P Innovations, LLC | DL253317 | 2023-06-22 | Active | Colton |
| M & P PAINTING CO. | DB028039 | 1989-01-12 | Dissolved | SIOUX FALLS |
| M & P PROPERTIES, L.L.C. | DL041500 | 2014-12-19 | Inactive | Dakota Dunes |
| M & P Sprinkler Winterization, LLC | DL131135 | 2017-03-01 | Suspended | WATERTOWN |
| M & P TRANSPORTATION, INC. | DB037800 | 1996-10-28 | Active | YANKTON |
| M & P UTILITIES, INC. | FB028267 | 2004-02-26 | Revoked | MAPLE LAKE |
| M & P UTILITIES, INC. | FB026291 | 2002-05-28 | Revoked | MAPLE LAKE |
| M & P UTILITIES, INC. | FB018408 | 1995-11-13 | Revoked | HAMEL |
| M & P Woodworking LLC | DL311370 | 2025-10-13 | Active | Rapid city |
| M & R 281 Locker LLC | DL200194 | 2021-04-05 | Active | Stickney |
| M & R Auctions, LLC | DL035496 | 2013-10-30 | Active | HOVEN |
| M & R AUTO, INC. | DB046885 | 2003-05-19 | Inactive | — |
| M & R DEWBACH, INC. | DB046672 | 2003-03-31 | Suspended | GETTYSBURG |
| M & R ENTERPRISES, LLC | DL012938 | 2007-01-11 | Inactive | MADISON |
| M & R GROUP, L.L.C. | DL003667 | 2001-03-30 | Dissolved | — |
| M & R Investments, LLC | DL138481 | 2017-10-16 | Active | Tyler |
| M & R LAWN SHEERS LLC | DL228677 | 2022-06-10 | Active | HURON |
| M & R MOTORS, INC. | DB019865 | 1980-07-14 | Inactive | — |
| M & R PROPERTIES, L.L.C. | DL012913 | 2007-01-08 | Active | SPEARFISH |
| M & R RAPID CITY, LLC | DL011823 | 2006-07-31 | Dissolved | MADISON |
| M & R Realty Auction, LLC | DL047606 | 2016-03-18 | Active | HOVEN |
| M & R RISE LLC | DL247954 | 2023-04-04 | Active | Watertown |
| M & R SIGNS AND BILLBOARDS, INC. | DB043881 | 2001-03-08 | Dissolved | PIERRE |
| M & R SOUTH DAKOTA, LLC | DL010987 | 2006-03-27 | Inactive | MADISON |
| M & R TRANSPORTATION, INC. | DB016698 | 1979-05-14 | Dissolved | PIEDMONT |
| M & R, INC. | DB022733 | 1983-09-19 | Dissolved | — |
| M & R, LLC | DL262517 | 2023-11-14 | Active | Fort Thompson |
| M & RT Properties LLC | DL047495 | 2016-03-11 | Dissolved | SIOUX FALLS |
| M & S CATTLE COMPANY, L.L.C. | DL028324 | 2012-05-29 | Active | SIOUX FALLS |
| M & S CONCESSIONS, INC. | FB014279 | 1991-02-28 | Revoked | MINOT |
| M & S Construction and Concrete LLC | DL209585 | 2021-09-03 | Inactive | Black Hawk |
| M & S CONSTRUCTION, INC. | DB041555 | 1999-06-18 | Inactive | STURGIS |
| M & S CONTRACTING, INC. | DB047304 | 2003-09-04 | Dissolved | QUINN |
| M & S Enterprises, LLC | DL036631 | 2013-12-26 | Active | ABERDEEN |
| M & S EXCAVATING, LLC | DL005416 | 2003-01-06 | Inactive | — |
| M & S FITNESS, L.L.C. | DL000497 | 1995-07-11 | Inactive | — |
| M & S Food Plots, LLC | DL173701 | 2019-12-02 | Dissolved | Mitchell |
| M & S FOODS INC. | DB035872 | 1995-05-24 | Inactive | — |
| M & S HEAVY EQUIPMENT REPAIR, INC. | DB041552 | 1999-06-17 | Inactive | — |
| M & S HOG SALES, INC. | DB037445 | 1996-07-15 | Dissolved | SIOUX FALLS |
| M & S INSURANCE MARKETING, LLC | FL000451 | 1999-01-28 | Revoked | MOORHEAD |
| M & S INVESTMENTS, LLC | DL010907 | 2006-03-16 | Inactive | — |
| M & S IRRIGATION AND TRENCHING, LLC | DL029687 | 2012-10-12 | Active | Burbank |
| M & S KLEIN, INC. | DF000095 | 1995-01-26 | Active | Valentine |
| M & S LIVESTOCK, L.L.C. | DL038337 | 2014-04-14 | Inactive | ABERDEEN |
| M & S PEDERSON RENTALS, LLC | DL039965 | 2014-08-15 | Inactive | WATERTOWN |
| M & S Property Management LLC | DL038887 | 2014-05-19 | Inactive | Black Hawk |
| M & S Rentals, L.L.C. | DL041674 | 2014-12-22 | Active | ORAL |
| M & S TERVEEN RENTALS, L.L.C. | DL012700 | 2006-12-15 | Inactive | SPEARFISH |
| M & S TRAILERS, INC. | DB029194 | 1990-02-27 | Inactive | — |
| M & S Trailers, LLC | DL041859 | 2015-01-06 | Dissolved | SALEM |
| M & S TRUCK AND EQUIPMENT | DB000907 | 1960-02-11 | Inactive | — |
| M & S TRUCKING, INC. | DB026854 | 1987-11-02 | Inactive | — |
| M & S VENTURES, INC. | DB045358 | 2002-04-19 | Active | Watertown |
| M & S, INC. | DB048147 | 2004-04-15 | Dissolved | BRANDON |
| M & S, INC. | DB030513 | 1991-04-05 | Dissolved | — |
| M & S, INCORPORATED | DB002538 | 1961-12-11 | Dissolved | — |
| M & S, L.L.C. | DL003381 | 2000-12-04 | Inactive | — |
| M & S, LLC | DL294741 | 2025-03-05 | Dissolved | Hartford |
| M & T Construction Consultants, LLC | DL044213 | 2015-07-01 | Dissolved | MADISON |
| M & T CONSTRUCTION, LLC | DL191503 | 2020-11-19 | Active | Bruce |
| M & T CORPORATION | DB056781 | 2012-03-27 | Dissolved | HURON |
| M & T Electric LLC | DL245479 | 2023-03-01 | Dissolved | Ethan |
| M & T Family Promotions, LLC | DL178780 | 2020-03-15 | Dissolved | Summerset |
| M & T FIRE & SAFETY, INC. | DB043610 | 2001-01-02 | Active | Volga |
| M & T INSURANCE AGENCY, INC. | FB030624 | 2006-05-11 | Revoked | BUFFALO |
| M & T MAINTENANCE, INC. | DB035142 | 1994-12-22 | Active | BROOKINGS |
| M & T RAUSCH FARMS, INC. | DF039263 | 1997-11-24 | Active | GETTYSBURG |
| M & T REAL ESTATE HOLDINGS, L.L.C. | DL019795 | 2009-09-21 | Active | WORTHING |
| M & T ROGERS, INC. | DB035984 | 1995-06-28 | Dissolved | HURON |
| M & T SCHANZENBACH FARMS, LLP | DR000626 | 2002-04-18 | Dissolved | — |
| M & T Ventures LLC | DL239047 | 2022-11-21 | Active | Lake Norden |
| M & V CORP. | DB048521 | 2004-07-19 | Dissolved | RAPID CITY |
| M & V Properties, LLC | DL223085 | 2022-03-18 | Active | Yankton |
| M & V REINHARD ENTERPRISES, INC. | DB038526 | 1997-05-01 | Inactive | — |
| M & V WIENK, INC. | DB036995 | 1996-03-28 | Dissolved | — |
| M & W BAIT SHOP INC. | DB027607 | 1988-08-09 | Inactive | — |
| M & W Construction, LLC | DL047258 | 2016-02-25 | Active | WATERTOWN |
| M & W Drywall LLC | DL223196 | 2022-03-21 | Active | Harrisburg |
| M & W ENTERPRISES, LLP | DR000589 | 2001-10-26 | Dissolved | STURGIS |
| M & W INVESTMENTS, LLC | DL009520 | 2005-07-11 | Inactive | RAPID CITY |
| M & W Marketing LLC | DL221406 | 2022-02-24 | Dissolved | Gayville |
| M & W SERVICES, INC. | DB041821 | 1999-09-10 | Active | Beresford |
| M & W TOWING & RECOVERY, INC. | DB043798 | 2001-02-14 | Active | BOX ELDER |
| M & W TRUCKING, INC. | DB054542 | 2009-05-22 | Dissolved | BOX ELDER |
| M & W TRUCKING, LLC dba PACK & M TRUCKING LLC | FL043060 | 2014-10-17 | Active | HAVEN |
| M 'N M FARMS, INC. | DB053424 | 2008-03-21 | Active | Sisseton |
| M + A DESIGN, INC. | FB039384 | 2016-06-13 | Active | Middleton |
| M + A DESIGN, LLC | FL044092 | 2016-02-04 | Inactive | FOND DU LAC |
| M - A Property, LLC | DL308378 | 2025-09-03 | Active | MITCHELL |
| M - T BUCKET, INC. | DB053624 | 2008-05-16 | Dissolved | WINNER |
| M - W PETROLEUM, INC. | FB013724 | 1990-07-26 | Inactive | LEMARS |
| M 01 LLC | DL252461 | 2023-06-08 | Active | SIOUX FALLS |
| M 6 Nutrition, LLC | FL043861 | 2015-10-26 | Revoked | FRISCO |
| M A Gorder Land LLC | DL041510 | 2014-12-16 | Active | ESTELLINE |
| M A P DISTRIBUTING, INC. | DB012024 | 1973-12-17 | Dissolved | — |
| M A R Properties, LLC | DL040327 | 2014-09-19 | Active | SIOUX FALLS |
| M A R S, INC. | DB038769 | 1997-06-30 | Dissolved | — |
| M A SHOVEL, LLC | DL016396 | 2008-05-02 | Inactive | — |
| M and C, LLC | DL048972 | 2016-06-17 | Inactive | HURON |
| M AND D OIL COMPANY, INC. | DB013264 | 1975-12-18 | Active | FAITH |
| M AND D WEATHERMON, INC. | DB033493 | 1993-10-05 | Dissolved | — |
| M AND E ENTERPRISES, INC. | DB009842 | 1969-10-07 | Dissolved | — |
| M and E Painting, LLC | DL211025 | 2021-09-27 | Dissolved | Sisseton |
| M AND J, LLC | DL020368 | 2009-12-14 | Dissolved | RAPID CITY |
| M and K Olson Trucking LLC | DL142351 | 2018-01-09 | Active | Sturgis |
| M AND M COROTHERS, LLC | DL135612 | 2017-08-02 | Active | SIOUX FALLS |
| M and M Custom Ag Inc | DB228450 | 2022-06-07 | Dissolved | Lodgepole |
| M AND M DAVIS, L.L.C. | DL027167 | 2012-02-09 | Dissolved | WATERTOWN |
| M and M Enterprise LLC | DL200356 | 2021-04-07 | Dissolved | Summerset |
| M and M Transport LLC | DL196162 | 2021-02-05 | Suspended | — |
| M AND M WHOLESALERS, LLC | DL015809 | 2008-02-19 | Active | Wagner |
| M and P, LLC | DL303323 | 2025-06-26 | Active | Pine Ridge |
| M AND R GRAZING ASSOCIATION | CO000681 | 1971-11-26 | Active | MILLER |
| M AND R REPAIR, L.L.C. | DL005247 | 2002-11-14 | Inactive | — |
| M AND R TRAVELER'S REST, LLC | DL133743 | 2017-05-25 | Dissolved | BELLE FOURCHE |
| M AND S DRILLING INC. | DB054248 | 2009-01-21 | Dissolved | STRANDBURG |
| M AND S DRILLING LLC | DL027766 | 2012-04-04 | Dissolved | STRANDBURG |
| M and Z Consulting, LLC | DL305505 | 2025-07-24 | Active | Prescott Valley |
| M B CATTLE CO., INC. | DB030681 | 1991-05-22 | Inactive | — |
| M BAR K LLC | DL294452 | 2025-03-02 | Active | CUSTER |
| M BAR K SALES LLC | DL208282 | 2021-08-13 | Dissolved | AVON |
| M Bar W Properties LLC | DL290498 | 2025-01-07 | Active | BLACK HAWK |
| M C & R POOLS, INC. | DB014101 | 1977-01-26 | Inactive | — |
| M C OIL COMPANY, INC. | DB003283 | 1963-07-23 | Dissolved | — |
| M C PILOT CARS, LLC | DL240406 | 2022-12-15 | Active | Brandon |
| M C Piper 2, LLC | DL201491 | 2021-04-22 | Active | Sioux Falls |
| M C SYSTEMS, INC. | DB022026 | 1982-12-27 | Inactive | — |
| M Crossed L, LLC | DA040121 | 2014-08-28 | Active | ELM SPRINGS |
| M D C, INC. | DB031868 | 1992-06-22 | Inactive | — |
| M Dean G Logistics, LLC | DL203393 | 2021-05-21 | Dissolved | TEA |
| M DIXON, LLC | DL006530 | 2003-11-19 | Inactive | TYNDALL |
| M E Construction L.L.C. | DL294615 | 2025-03-04 | Dissolved | Sioux Falls |
| M E N 27 LLC | DL217064 | 2021-12-24 | Dissolved | Sioux Falls |
| M ENGINEERING, INC. | FB032618 | 2008-04-30 | Revoked | WESTERVILLE |
| M Engineering, LLC | DL150929 | 2018-08-01 | Active | Sioux Falls |
| M Enterprises, Inc. | DB058876 | 2014-03-26 | Active | PIEDMONT |
| M F MACHINE, INC. | DB036930 | 1996-03-14 | Inactive | — |
| M FINANCIAL HOLDINGS INCORPORATED | FB023062 | 1999-10-18 | Active | DALLAS |
| M FINANCIAL SECURITIES MARKETING, INC. | FB029965 | 2005-09-15 | Active | Portland |
| M Frey Rental Properties, LLC | DL245234 | 2023-02-27 | Active | Garretson |
| M G B PROPERTIES LLC | DL035010 | 2013-09-05 | Active | Rapid City |
| M Giron LLC | DL154989 | 2018-10-10 | Active | Sioux Falls |
| M H & A INCORPORATED | DB051675 | 2006-11-06 | Dissolved | CARTHAGE |
| M H EBY, INC. | FB036111 | 2012-07-16 | Active | BLUE BALL |
| M H Hubers Family, LLC | DL049278 | 2016-07-18 | Inactive | HARRISON |
| M H S L, LLC | DL033068 | 2013-07-09 | Dissolved | Arlington |
| M Heritage LLC | DL224014 | 2022-04-01 | Active | San Diego |
| M HILL BUSINESS PLAZA, LLC | DL028360 | 2012-06-01 | Active | RAPID CITY |
| M HOLDINGS SECURITIES, INC. | FB023061 | 1999-10-18 | Active | Portland |
| M INSURANCE SOLUTIONS, INC. | FB205795 | 2021-07-02 | Active | Portland |
| M Investments, LLC | DL295558 | 2025-03-15 | Active | Worthing |
| M J & SONS, L.L.C. | DL020460 | 2009-12-22 | Active | HILL CITY |
| M J FEEDLOT, INCORPORATED | DB013306 | 1976-01-02 | Inactive | — |
| M J MARKETING CONSULTANTS, INC. | FB010879 | 1986-05-19 | Revoked | BROOKFIELD |
| M James Properties LLC | DL163455 | 2019-04-19 | Active | Summerset |
| M James Rentals LLC | DL285585 | 2024-10-23 | Active | Summerset |
| M K Woodworks llc | DL159490 | 2019-01-27 | Dissolved | North Sioux City |
| M K, INC. (LOYALTON) | DB023885 | 1976-04-06 | Inactive | — |
| M KIMMEL 5 LLC | DL197470 | 2021-02-26 | Active | ALLIANCE |
| M Krohn - DO, P.C. | DB139539 | 2018-01-01 | Dissolved | Rapid City |
| M L & K, INC. | DB036799 | 1996-02-02 | Dissolved | TRENT |
| M L EXPEDITE INC | DB144030 | 2018-02-15 | Dissolved | RAVINIA |
| M L FEDDERS MARINE & RV, INC. | FB021339 | 1998-05-18 | Revoked | LEMARS |
| M LAWN & REPAIR LLC | DL300520 | 2025-05-18 | Active | ROSCOE |
| M LAZY H LAND & CATTLE COMPANY | DF019735 | 1980-05-27 | Inactive | — |
| M LIFE, LTD. | DB046578 | 2003-03-12 | Inactive | — |
| M M van Vuurden LLC | DL047498 | 2016-03-11 | Suspended | Rapid City |
| M N T COMPANY (GETTYSBURG) | DB019464 | 1980-02-05 | Dissolved | — |
| M Nanto & Associates LLC | DL145710 | 2018-03-21 | Dissolved | Rapid City |
| M P Construction llc | DL291738 | 2025-01-24 | Dissolved | Spearfish |
| M P Trucking, LLC | DL166416 | 2019-06-23 | Dissolved | Brookings |
| M Parts & Performance, LLC | DL204082 | 2021-06-03 | Inactive | Sioux Falls |
| M Perez Roofing LLC | DL334212 | 2026-07-21 | Active | Sioux Falls |
| M PETERSON GRAVEL, LLC | DL029983 | 2012-11-09 | Active | MONTROSE |
| M R Doggin LLC | DL302905 | 2025-06-20 | Active | HOT SPRINGS |
| M R HENDERSON & COMPANY, P.C. | FB018195 | 1995-09-01 | Inactive | COLORADO SPRINGS |
| M R S, INC. | DB020593 | 1981-04-22 | Dissolved | BRIDGEWATER |
| M R T COLLECTIONS, INC. | DB036264 | 1995-09-20 | Dissolved | BROOKINGS |
| M REALTY, INC. | DB044485 | 2001-08-29 | Inactive | — |
| M REALTY, LLC | DL021680 | 2010-06-09 | Dissolved | SIOUX FALLS |
| M RECOVERY COMPANY, LLC | DL026364 | 2011-11-29 | Active | SIOUX FALLS |
| M S INTERNATIONAL INC | FB158548 | 2019-01-07 | Active | ORANGE |
| M SETTLEMENTS, LLC | FL004614 | 2009-06-17 | Inactive | PORTLAND |
| M SPACE HOLDINGS, LLC | FL004786 | 2009-10-05 | Revoked | PARK CITY |
| M Squared Properties, LLC | DL048962 | 2016-06-20 | Inactive | Sioux Falls |
| M STORAGE & RENTALS, LLC | DL042416 | 2015-03-06 | Active | Mina |
| M Studios LLC | DL236229 | 2022-10-06 | Active | Sioux Falls |
| M T D INCORPORATED | DB014486 | 1977-07-05 | Inactive | — |
| M T J, INCORPORATED | DB016086 | 1978-10-19 | Inactive | — |
| M TERRELL INVESTMENTS LLC | DL240100 | 2022-12-09 | Active | VANCOUVER |
| M USA & M International Group 1 | DL137852 | 2017-10-03 | Dissolved | Henderson |
| M USA & M INTERNATIONAL GROUP 2 | DL137854 | 2017-10-03 | Dissolved | hENDERSON |