| MASSIVE ENTERTAINMENT, INC. | DB058946 | 2014-04-03 | Active | RAPID CITY |
| MASSKRO LLC. | DL319709 | 2026-02-02 | Active | Freeman |
| MASSMAN CONSTRUCTION CO. | FB000646 | 1956-09-10 | Active | OVERLAND PARK |
| Massman Consulting LLC | DL322853 | 2026-03-09 | Active | Tabor |
| MASSMANN'S, INC. | DB035880 | 1995-05-26 | Active | BRANDON |
| MASSMARK COMPANIES, LLC | FL006228 | 2012-03-22 | Inactive | NASHVILLE |
| MASSMUTUAL ASSET FINANCE LLC | FL003750 | 2007-10-02 | Active | FOXBORO |
| MASSMUTUAL OWNERS ASSOCIATION, INC. | FB026024 | 2002-03-06 | Inactive | SPRINGFIELD |
| Masson Sewing LLC | DL049449 | 2016-08-01 | Active | SPEARFISH |
| MASSOP ELECTRIC INC. | FB009588 | 1984-05-24 | Active | MAPLETON |
| MASSOUD PLUMBING SERVICES LLC | DL216521 | 2021-12-15 | Active | Humboldt |
| MASSPRO, INC. | FB023655 | 2000-03-13 | Inactive | PLAINVILLE |
| Mast Home Improvements, LLC | DL309472 | 2025-09-17 | Active | Hermosa |
| Masta Enterprises LLC | DL285036 | 2024-10-14 | Dissolved | Redfield |
| Masta, LLC | DL128277 | 2016-12-02 | Active | Sioux Falls |
| MASTEC COMTEC OF THE CAROLINAS, INC. | FB013457 | 1990-03-16 | Inactive | WILMINGTON |
| MASTEC INDUSTRIAL CORP. | FB242045 | 2023-01-12 | Active | CORAL GABLES |
| MASTEC NETWORK SOLUTIONS, LLC | FL006770 | 2013-03-08 | Active | CORAL GABLES |
| MASTEC NORTH AMERICA, INC. | FB021503 | 1998-06-29 | Active | CORAL GABLES |
| MasTec Professional Services, LLC | FL131228 | 2017-03-03 | Inactive | Plymouth Meeting |
| MASTEC SERVICES COMPANY, INC. | FB027398 | 2003-06-13 | Active | CORAL GABLES |
| MASTECH APPLICATION SERVICES, INC. | FB024213 | 2000-08-18 | Inactive | PITTSBURGH |
| Mastech Digital Technologies, Inc. | FB031897 | 2007-08-09 | Revoked | MOON TOWNSHIP |
| MASTECH SYSTEMS CORPORATION | FB018547 | 1996-01-08 | Revoked | OAKDALE |
| MASTECH SYSTEMS CORPORATION | FB023120 | 1999-10-29 | Revoked | OAKDALE |
| MASTEKOLA, INC. | NS008334 | 1986-07-14 | Inactive | — |
| MASTEL PRECISION SURGICAL INSTRUMENTS, INC. | DB033936 | 1994-01-18 | Dissolved | — |
| MASTEL RESEARCH, INC. | DB049431 | 2005-03-17 | Inactive | — |
| Mastel Surgical Inc. | DB034665 | 1994-08-01 | Active | RAPID CITY |
| MastelAire, LLC | DL131028 | 2017-02-24 | Dissolved | RAPID CITY |
| MASTELLER FARMS, LLC | DL015475 | 2008-01-04 | Active | SELBY |
| MASTELLER GUIDE SERVICES, LLC | DL307066 | 2025-08-14 | Active | GLENHAM |
| MASTEN LAW OFFICE, P.C. | DB026208 | 1987-03-16 | Inactive | — |
| MASTEN RESEARCH CORPORATION | DB032017 | 1992-08-03 | Inactive | — |
| MASTER ASBESTOS REMOVAL, INC. | FB010355 | 1985-08-01 | Revoked | GUTHRIE |
| MASTER ASPHALT COMPANY | FB020038 | 1997-04-28 | Inactive | EDEN PRAIRIE |
| Master Blaster LLC | DL272809 | 2024-04-14 | Suspended | Henderson |
| MASTER BUILDERS SOLUTIONS ADMIXTURES US, LLC | FL227612 | 2022-05-23 | Suspended | Beachwood |
| Master Builders Solutions US LLC | FL176609 | 2020-01-30 | Revoked | Beachwood |
| MASTER BUILDERS, INC. | FB022222 | 1999-01-28 | Revoked | CLEVELAND |
| MASTER CARE, INC. | DB040185 | 1998-06-18 | Dissolved | Summerset |
| Master Cleanser Coffee LTD | DB248287 | 2023-04-10 | Dissolved | Yankton |
| Master Cleanser Distributors LTD | DB248601 | 2023-04-17 | Dissolved | Yankton |
| Master Consulting Engineers, Inc. | FB303258 | 2025-06-25 | Active | Watertown |
| MASTER CRAFT BUILDING SYSTEMS & SUPPLY, INC. | DB020000 | 1980-09-08 | Inactive | — |
| MASTER CRAFT REALTORS, INC. | DB011643 | 1973-04-27 | Inactive | — |
| Master Developer LLC | DL162394 | 2019-03-28 | Dissolved | Summerset |
| MASTER DRYWALL, INC. | FB035559 | 2011-11-17 | Inactive | CECIL |
| Master Electric Co., Inc. | FB169099 | 2019-08-21 | Active | Prior Lake |
| MASTER FINANCIAL, INC. | FB022020 | 1998-11-19 | Inactive | ORANGE |
| MASTER FLOOR 2 LLC | DL179556 | 2020-04-03 | Inactive | Minneapolis |
| Master Floors of South Dakota, Inc. | DB141192 | 2018-01-01 | Dissolved | BOX ELDER |
| Master Janitorial Services L.L.C. | DL226490 | 2022-05-06 | Active | Tea |
| Master Key Music, LLC | DL333097 | 2026-07-08 | Active | Sioux Falls |
| MASTER KEY RESOURCES, LLC | FL004087 | 2008-06-02 | Inactive | BETHESDA |
| MASTER MAGNETICS, INC. | FB331278 | 2026-06-16 | Active | CASTLE ROCK |
| Master Management, Inc. | DB059863 | 2015-03-20 | Suspended | MADISON |
| MASTER MARKETING CORPORATION | DB043717 | 2001-01-24 | Inactive | — |
| MASTER MARKETING INTERNATIONAL, INC. DBA MAGNETSTREET INCORPORATED | FB027916 | 2003-11-17 | Revoked | WHEATON |
| MASTER MECHANICAL SERVICES, LLC | DL269503 | 2024-02-28 | Active | HARRISBURG |
| MASTER MEDICAL AND SPORTS INSTITUTE COMPLEX, LLC | DL024857 | 2011-06-08 | Inactive | SIOUX FALLS |
| MASTER MILLWORK I, LLC | DL232803 | 2022-08-17 | Active | SPEARFISH |
| MASTER MILLWORK, INC. | DB031067 | 1991-10-28 | Active | SPEARFISH |
| MASTER OF ALL TRADES CONSTRUCTION, INC. | DB048035 | 2004-03-15 | Inactive | — |
| MASTER PLAN MARKETING & RESEARCH, INC. | DB051470 | 2006-08-25 | Dissolved | RAPID CITY |
| MASTER PLAN MARKETING & RESEARCH, INC. | DB022841 | 1983-10-31 | Inactive | — |
| MASTER POOL AND SPA CORP. | FB033006 | 2008-10-24 | Revoked | ST LOUIS PARK |
| MASTER PROTECTION CORPORATION | FB013307 | 1990-01-08 | Inactive | BOCA RATON |
| MASTER PROTECTION LIMITED PARTNERSHIP | FP000765 | 2010-10-20 | Active | WILMINGTON |
| MASTER PROTECTION, LLC | FL004838 | 2009-11-06 | Inactive | BOCA RATON |
| Master Quirky, L.L.C. | DL252152 | 2023-06-03 | Inactive | Rapid City |
| Master Roof Systems, LLC | DL147078 | 2018-04-18 | Dissolved | Keller |
| Master Shine Detailing LLC | DL210764 | 2021-09-22 | Active | Watertown |
| MASTER SPECIALITY INC. | DB035687 | 1995-04-10 | Inactive | — |
| Master Taco, LLC | DL194451 | 2021-01-11 | Inactive | Milbank |
| Master Talents LLC | DL143679 | 2018-02-07 | Active | Davis |
| MASTER TECH AUTO REPAIR, INC. | DB051030 | 2006-04-27 | Dissolved | HARTFORD |
| MASTER TECHNOLOGIES, LLC | DL020275 | 2009-11-30 | Dissolved | SIOUX FALLS |
| Master Technology Group, Inc. | FB038886 | 2015-10-13 | Active | Eden Prairie |
| MASTER WORKS CABINETRY INC. | DB056214 | 2011-06-27 | Dissolved | GARRETSON |
| MASTER'S LOG BUILDERS/DEALER, INC. | DB037214 | 1996-05-13 | Inactive | — |
| MASTER'S SECRET CORPORATION | DB043962 | 2001-04-02 | Inactive | — |
| Master's Transportation, Inc. | FB290919 | 2025-01-13 | Active | Kansas City |
| MASTER, WARDENS AND MEMBERS OF THE GRAND LODGE OF MAINE | 18200000ND | 1820-06-16 | Active | — |
| Master-Halco, Inc. | FB187094 | 2020-09-02 | Active | DALLAS |
| MASTER-TECH AUTO CLINIC, INC. | DB032221 | 1992-10-13 | Dissolved | — |
| MASTERBLASTER CLEANING EQUIPMENT, INC. | DB032042 | 1992-08-12 | Dissolved | — |
| MASTERBUILD SOLUTIONS LLC | DL333512 | 2026-07-14 | Active | Sioux Falls |
| Mastercard International Services, Inc. | FB275455 | 2024-05-21 | Active | Purchase |
| MASTERCARD TRANSACTION SERVICES (US) LLC | FL181787 | 2020-05-18 | Inactive | NEW YORK |
| MASTERCARD TRANSACTION SERVICES (US) LLC | FL251403 | 2023-05-23 | Active | New York |
| MASTERCLEAN INC. | DB051032 | 2006-04-27 | Dissolved | HURON |
| Mastercraft LLC | DL049629 | 2016-08-18 | Dissolved | RAPID CITY |
| Mastercraft Reconditioning LLC | FL043994 | 2015-12-21 | Revoked | GILLETTE |
| MASTERCRAFT SERVICES, L.L.C. | DL008371 | 2004-12-22 | Dissolved | RAPID CITY |
| Mastered Legacy, LLC | DL286707 | 2024-11-08 | Inactive | BOX ELDER |
| MASTERGRAPHICS INCORPORATED | FB029244 | 2004-12-27 | Active | Fitchburg |
| MASTERGUARD PEST CONTROL, INC. | FB203828 | 2021-05-28 | Active | Harrisburg |
| MasterGuard Pest Control, Inc. | DB203005 | 2021-05-17 | Dissolved | Ankeny |
| MasterGuard Pest Control, Inc. | DB203001 | 2021-05-17 | Dissolved | Ankeny |
| MASTERMARK BUSINESS CONSULTANTS, INC. | DB035901 | 1995-06-02 | Inactive | — |
| Mastermind Elite Business Group | NS293834 | 2025-02-21 | Active | Rapid City |
| Mastermind Solutions Agency LLC | DL039692 | 2014-07-29 | Dissolved | SIOUX FALLS |
| MASTERMINDS INC. | DB047024 | 2003-06-23 | Inactive | — |
| MASTERPIECE COLLECTIONS LLC | DL276847 | 2024-06-13 | Dissolved | PIERRE |
| MASTERPIECE COMPUTER ASSOCIATES, LTD. | DB025447 | 1986-06-02 | Inactive | — |
| MASTERPIECE PAINTING, LLC | DL148466 | 2018-05-18 | Dissolved | SIOUX FALLS |
| Masterpiece Roofing & Restoration LLC | DL286159 | 2024-10-31 | Active | Sioux Falls |
| MasterPiece, LLC | DL201242 | 2021-04-20 | Suspended | Draper |
| Masters Choice, Inc. | FB154017 | 2018-09-18 | Revoked | Anna |
| MASTERS CONSTRUCTION, INC. | DB049683 | 2005-05-05 | Inactive | — |
| Masters Custom Design Embroidery, LLC | DL042620 | 2015-03-25 | Active | Rapid City |
| Masters Drywall, LLC | FL254068 | 2023-07-05 | Active | Rock Rapids |
| MASTERS ROOFING AND INSULATION, INC. | DB030439 | 1991-03-20 | Inactive | — |
| Masters Veterinary Service LLC | DL048260 | 2016-05-02 | Active | Rapid City |
| MASTERS, INC. | FB011478 | 1987-05-15 | Inactive | WESTBURY |
| MASTERS, INC. | DB031402 | 1992-02-04 | Inactive | — |
| MASTERS, INC. | FB009491 | 1984-04-04 | Revoked | RANCHESTER |
| MASTERSAVE, INC. | DB056406 | 2011-10-19 | Inactive | RAPID CITY |
| MASTERSAVE, LLC | DL026652 | 2011-12-23 | Inactive | RAPID CITY |
| MASTERSON INVESTMENTS LIMITED PARTNERSHIP | DP001118 | 1999-12-30 | Active | — |
| MASTERTAX, LLC | FL155429 | 2018-10-22 | Active | Roseland |
| MASTERTECH SERVICES, INC. | FB030493 | 2006-03-28 | Revoked | GOLDEN |
| MASTERTECH SERVICES, INC. | FB034510 | 2010-07-20 | Active | GOLDEN |
| Masthead Claims Administration Inc. | FB220683 | 2022-02-15 | Active | AUSTIN |
| MASTIFF CONSTRUCTION, INC. | FB033929 | 2009-11-05 | Revoked | ST ANTHONY |
| Mastiff Excavation and Concrete llc | DL266293 | 2024-01-12 | Dissolved | Rapid City |
| MASTROGIOVANNI TECH LLC | DL280028 | 2024-07-30 | Dissolved | Rapid City |
| MASUR FARMS, LLC | DL026531 | 2011-12-14 | Active | GEDDES |
| MASUR FIREWORKS LLC | DL197732 | 2021-03-02 | Suspended | Sioux Falls |
| MASUR INVESTMENT GROUP LLC | DL298661 | 2025-04-23 | Suspended | Sioux Falls |
| MASUR INVESTMENTS, L.L.C. | DL023533 | 2011-01-18 | Dissolved | BRANDON |
| MASYGA PROPERTIES LLC | DL150629 | 2018-07-03 | Dissolved | BRANDON |
| MAT & T, INC. | DB048774 | 2004-09-28 | Active | PIERRE |
| Mat Bracket Challenge LLC | DL332400 | 2026-06-30 | Active | Sioux Falls |
| MAT BRANJORD AUTOMOTIVE, INC. | DB035694 | 1995-04-13 | Inactive | — |
| MAT HOLDINGS LLC | DL192657 | 2020-12-10 | Active | CHICAGO |
| MAT Properties, LLC | DL224808 | 2022-04-13 | Inactive | Sioux Falls |
| MAT WEEKLY AVIATION, LLC | DL008404 | 2004-12-27 | Dissolved | MINA |
| MAT&T PROPERTIES, LLC | DL187162 | 2020-09-03 | Active | PIERRE |
| MAT&T RENTALS, LLC | DL001081 | 1996-12-30 | Active | PIERRE |
| MAT, LLC | DL161541 | 2019-03-11 | Active | Rapid City |
| MAT-TEL PROPERTIES, LLC | DL003493 | 2001-01-09 | Dissolved | SPEARFISH |
| MATA, INC. | DB041892 | 1999-09-29 | Dissolved | ELK POINT |
| Matador Capital Assets, Inc. | DB060413 | 2015-10-19 | Dissolved | MADISON |
| Matador Detailing, Inc. | DB129151 | 2016-12-29 | Dissolved | ABERDEEN |
| MATADOR LLC | DL025986 | 2011-10-17 | Dissolved | RAPID CITY |
| MATADOR PIPELINES, INC. | FB005925 | 1977-06-27 | Inactive | WICHITA |
| Matador Ventures, LLC | DL197159 | 2021-02-22 | Active | Rapid City |
| MATAHOTA RANCH, LLC | DL016212 | 2008-04-14 | Dissolved | GALION |
| MATAMO LLC | DL282621 | 2024-09-09 | Dissolved | New Underwood |
| MataMoros LLC | DL276654 | 2024-06-10 | Dissolved | Box Elder |
| MATANA HOLDINGS LLC | DL190058 | 2020-10-26 | Dissolved | SIOUX FALLS |
| Matana Jones Inc. | DB060544 | 2015-12-17 | Dissolved | SANTA MONICA |
| MATASA AGILA HOLDINGS, LLC | FL043562 | 2015-06-15 | Inactive | DUBLIN |
| MATCAL INC. | DB049385 | 2005-03-04 | Dissolved | Winner |
| MATCAT PRODUCTIONS, LLC | DL032578 | 2013-05-24 | Inactive | RAPID CITY |
| Match and Wear, LLC | DL205867 | 2021-07-03 | Dissolved | Vermillion |
| MATCH GRADE VENTURES LLC | DL302406 | 2025-06-12 | Active | SIOUX FALLS |
| Match Holdings LLC | DL268084 | 2024-02-08 | Dissolved | Watertown |
| MATCH LLC | DL241046 | 2022-12-28 | Dissolved | SPEARFISH |
| MatchBox Candle Co. LLC | DL232397 | 2022-08-11 | Active | Colorado Springs |
| MATCHBOX RECREATION CENTER, LLC | DL136818 | 2017-09-07 | Active | Aberdeen |
| Matches and Company, LLC | DL309308 | 2025-09-15 | Active | Rapid City |
| Matchless Cleaning LLC | DL145134 | 2018-03-10 | Dissolved | Beaver Creek |
| Matchless LLC | DL317131 | 2026-01-05 | Active | Mitchell |
| Matchmaker LLC | DL320625 | 2026-02-11 | Active | Rapid city |
| Matchup Magic LLC | DL168360 | 2019-08-06 | Dissolved | Sioux Falls |
| MATCO TOOLS CORPORATION | FB016065 | 1993-05-06 | Active | Stow |
| MATCO TOOLS CORPORATION | FB009709 | 1984-07-26 | Inactive | STOW |
| MATCOR, INC. | FB036173 | 2012-08-08 | Active | CHALFONT |
| MATEO JEWERLY LLC | DL327901 | 2026-05-06 | Active | YANKTON |
| MATEO, INC. | DB040819 | 1998-12-21 | Inactive | — |
| MATERI EXPLORATION, INC. | FB003495 | 1970-01-26 | Revoked | UPTON |
| MATERIAL DISTRIBUTORS, INC. | DB019447 | 1980-01-30 | Dissolved | — |
| MATERIAL MANAGEMENT & SERVICES, INC. | FB024416 | 2000-10-16 | Inactive | CHARLESTON |
| MATERIAL SEPARATION RESEARCH LLC | DL021087 | 2010-03-26 | Inactive | FORT PIERRE |
| MATERIAL SERVICES COMPANY, INC. | FB030669 | 2006-05-31 | Inactive | WILMINGTON |
| Material Supply LLC | DL230634 | 2022-07-15 | Active | Rio rancho |
| MATERIAL TESTING SERVICES, INC. | FB019113 | 1996-07-10 | Revoked | MINOT |
| MATERIAL TESTING SERVICES, L.L.C. | FL000662 | 2000-03-17 | Revoked | MINOT |
| Material Testing Services, L.L.C. | FL192811 | 2020-12-14 | Active | Watertown |
| Material Things LLC | DL260765 | 2023-10-16 | Active | Trent |
| MATERIALS EXPLORATION COMPANY, INC. | DB022013 | 1982-12-22 | Inactive | — |
| MATERIALS HANDLING CORPORATION | DB029401 | 1990-04-17 | Dissolved | MADISON |
| MATERIALS HANDLING SERVICES, INC. DBA WESTERN MATERIALS HANDLING SERVICES, INC. | FB016380 | 1993-09-29 | Revoked | ENGLEWOOD |
| MATERIALS RESEARCH AND TRAINING INSTITUTE | NS013783 | 2008-07-16 | Inactive | RAPID CITY |
| Maternal-Fetal Medicine Services, PLLC | DL248827 | 2023-04-17 | Inactive | Sioux Falls |
| MatFactor Linen & Uniform Solutions, LLC | DL042041 | 2015-01-23 | Dissolved | RAPID CITY |
| MATGEN INSURANCE INC. | FB014859 | 1991-10-07 | Revoked | REMSEN |
| MATH BOOSTERS, INC. | NS014412 | 2010-09-07 | Dissolved | Sioux Falls |
| Math Manes, LLC | DL040958 | 2014-11-06 | Active | SIOUX FALLS |
| Math with Emma LLC | DL308230 | 2025-09-01 | Active | Sioux Falls |
| MATH-U-SEE INC. | FB037837 | 2014-06-03 | Active | LITITZ |
| MATHALYTICS INC. | DB059502 | 2014-11-03 | Active | BOX ELDER |
| Mathematica Inc. | FB200691 | 2021-04-12 | Active | Princeton |
| Mathematical Synergistics, LLC | DL042404 | 2015-02-23 | Active | ABERDEEN |
| MATHEMATIK-PHYSIK CORPORATION | DB025012 | 1986-01-06 | Dissolved | — |
| MATHER & CO. | FB029629 | 2005-05-13 | Inactive | PHILADELPHIA |
| MATHER CONSTRUCTION LLC | DL009216 | 2005-05-17 | Dissolved | BLACK HAWK |