| N. C. M., INC. | DB012995 | 1975-07-15 | Dissolved | — |
| N. Christiansen Family Land, LLC | DL199978 | 2021-04-01 | Active | Miller |
| N. Dakota Ave, LLC | DL139849 | 2017-11-15 | Dissolved | Watertown |
| N. E. P. CAMPERS ASSN. | 19670058ND | 1967-09-19 | Active | — |
| N. E. PIERSON CONSTRUCTION, INC. | FB007566 | 1981-03-05 | Revoked | COLUMBIA |
| N. FJELSTAD RENTALS, LLC | DL030863 | 2013-01-08 | Active | ABERDEEN |
| N. G main st LLC | DL196043 | 2021-02-03 | Active | Sturgis |
| N. GLANTZ & SON, INC. | FB019758 | 1997-01-29 | Inactive | BROOKLYN |
| N. GLANTZ & SON, LLC | FL001508 | 2003-02-03 | Active | LOUISVILLE |
| N. H. BRAGG & SONS | 19050008D | 1905-04-22 | Active | — |
| N. H. INC. | DB025608 | 1986-08-04 | Inactive | — |
| N. HARRIS COMPUTER CORPORATION | FB037224 | 2013-11-12 | Active | — |
| N. J. LEMLER, INC. | DF028779 | 1989-10-10 | Active | GETTYSBURG |
| N. JOHNSON ENTERPRISES, LLC | DL020096 | 2009-11-04 | Dissolved | STURGIS |
| N. L. THOMPSON, INC. D/B/A THOMPSON PROPANE SERVICE, INC. | FB017730 | 1995-03-17 | Inactive | CROFTON |
| N. PERRY CONSTRUCTION, LLC | DL043949 | 2015-06-11 | Active | ETHAN |
| N. Ribstein LLC | DL023236 | 2010-12-20 | Active | BROOKINGS |
| N. SIOUX SUPER 8 MOTEL, INC. | DB012992 | 1975-07-14 | Inactive | — |
| N. Steen Enterprises LC | DL237597 | 2022-11-01 | Dissolved | SIOUX FALLS |
| N.A. CORP. | FB016548 | 1993-12-09 | Revoked | SUNDANCE |
| N.A. DEGERSTROM, INC. | FB015323 | 1992-06-16 | Inactive | SPOKANE |
| N.A. GUY, INC. | 19490052D | 1949-07-15 | Dissolved | — |
| N.A. NETWORKS, LLC | DL031401 | 2013-02-22 | Inactive | SIOUX FALLS |
| N.A. Stoll Corporation | DB139426 | 2017-11-06 | Active | Sioux Falls |
| N.A.B., INC. | DB024353 | 1985-04-16 | Inactive | — |
| N.A.C. MANAGEMENT CORP. | FB030781 | 2006-07-10 | Inactive | CHICAGO |
| N.A.H.C. ACQUISITION LLC | FL000586 | 1999-11-04 | Inactive | MINNEAPOLIS |
| N.A.R., INC. | FB031784 | 2007-06-25 | Inactive | WEST VALLEY CITY |
| N.A.T.E.CO. (NATE OF ALL TRADES ENTERTAINMENT AND CONSULTING) LLC | DL024158 | 2011-03-21 | Dissolved | SIOUX FALLS |
| N.B. GOLF CARS, INC. | DB027139 | 1988-02-24 | Inactive | — |
| N.B. GOLF, L.L.C. | DL013853 | 2007-05-08 | Active | Sioux Falls |
| N.B. Land Company, LLC | DL256377 | 2023-08-09 | Active | Sioux Falls |
| N.B.B.C., LIMITED LIABILITY COMPANY | DL022400 | 2010-09-13 | Inactive | PIERRE |
| N.C. OPDAHL CONSTRUCTION, INC. | DB049061 | 2004-12-27 | Dissolved | MADISON |
| N.C. ROLFSON & SONS, INC. | FB009770 | 1984-09-17 | Revoked | BISMARCK |
| N.C., INC. | DB048755 | 2004-09-22 | Active | BERESFORD |
| N.C.E. GROUP, LLC | DL028343 | 2012-05-31 | Dissolved | MADISON |
| N.D.Y.S.F. | NS006756 | 1979-07-09 | Inactive | — |
| N.E. CO. - DAKOTA, LIMITED | DB024936 | 1985-12-10 | Active | LA CROSSE |
| N.E. Hansen, LLC | DL171491 | 2019-10-12 | Active | Brookings |
| N.E.D. CORPORATION | FB012845 | 1989-07-10 | Inactive | WORCESTER |
| N.E.S.D. CELTIC FAIRE, INC. | NS013418 | 2007-05-02 | Dissolved | Aberdeen |
| N.E.W. CUSTOMER SERVICE COMPANIES OF SOUTH DAKOTA, INC. | FB030877 | 2006-08-16 | Inactive | STERLING |
| N.E.W. CUSTOMER SERVICE COMPANIES OF SOUTH DAKOTA, LLC | FL003868 | 2007-12-28 | Inactive | STERLING |
| N.E.W. WIRELESS & INSURANCE SERVICES, LLC | FL004879 | 2009-12-07 | Inactive | STERLING |
| N.F.A. RISK MANAGEMENT CORPORATION | FB034277 | 2010-04-16 | Inactive | CARSON CITY |
| N.F.I., L.L.C. | DL005659 | 2003-03-21 | Active | BERESFORD |
| N.I.C Builds LLC | DL330976 | 2026-06-11 | Active | Sioux Falls |
| N.I.K. CONSTRUCTION, INC. | DB025375 | 1986-05-07 | Dissolved | — |
| N.I.S. FINANCIAL SERVICES, INC. | FB010302 | 1985-06-27 | Active | KANSAS CITY |
| N.J. ALTHER, LLC | DL005525 | 2003-02-07 | Inactive | — |
| N.J. Moore Enterprises, LLC | DL328370 | 2026-05-11 | Active | Brandon |
| N.J. PETERSON SANITATION, LLC | DL022994 | 2010-11-29 | Dissolved | SIOUX FALLS |
| N.K. Medical Prof. LLC | DL183538 | 2020-06-24 | Active | Dakota Dunes |
| N.N. FISCHER FAMILY LIMITED PARTNERSHIP | DP001707 | 2005-12-23 | Inactive | — |
| N.N.A. INSURANCE SERVICES | FB017414 | 1994-11-09 | Revoked | CHATSWORTH |
| N.O. Farms LLC | DL295137 | 2025-03-10 | Active | White Lake |
| N.O. Trucking LLC | DL295141 | 2025-03-10 | Active | White Lake |
| N.O.P. Holdings, L.L.C. | DL238994 | 2022-11-21 | Dissolved | KEYSTONE |
| N.P. DODGE INSURANCE AGENCY, INC. | FB018523 | 1995-12-28 | Active | OMAHA |
| N.P. PREMIUM FINANCE COMPANY | FB025175 | 2001-05-29 | Revoked | SOUTHFIELD |
| N.T.A. Logistics, LLC | DL171110 | 2019-10-03 | Active | Huron |
| N.T.A. LTD. | DB020234 | 1980-12-12 | Active | HURON |
| N.T.FOX CO. INC. | 19220012D | 1922-02-18 | Suspended | — |
| N.U., INC. | DB028339 | 1989-04-28 | Inactive | — |
| N.V. ME HAIR, INC. | DL020646 | 2010-01-21 | Dissolved | RAPID CITY |
| N110VTT, LLC | DL196481 | 2021-02-10 | Suspended | Watertown |
| N1503U LLC | DL312645 | 2025-10-30 | Active | Watertown |
| N2 Ag Property, LLC | DL129461 | 2017-01-09 | Active | Mission Hill |
| N2 Seed, Inc. | DB060311 | 2015-08-31 | Dissolved | YANKTON |
| N2 Ventures Inc | DB266963 | 2024-01-24 | Active | Sioux Falls |
| N2 Wildlife Photography, L.L.C. | DL211124 | 2021-09-28 | Dissolved | Southlake |
| N201YG LLC | DL296291 | 2025-03-24 | Active | Rapid City |
| N240MC LLC | DL258685 | 2023-09-13 | Active | Watertown |
| N242HA LLC | DL235275 | 2022-09-23 | Active | Pierre |
| N276TC LLC | DL264905 | 2023-12-21 | Active | Watertown |
| N2G Worldwide Insurance Services, LLC | FL278527 | 2024-07-09 | Revoked | Cherry Hill |
| N2G Worldwide Insurance Services, LLC | FL177929 | 2020-02-26 | Suspended | Cherry Hill |
| N2G Worldwide Insurance Services, LLC | FL326827 | 2026-04-23 | Active | Jersey City |
| N2N BUSINESS SERVICES LLC | DL032032 | 2013-04-15 | Dissolved | SIOUX FALLS |
| N2N Watertown, LLC | DL038473 | 2014-04-22 | Dissolved | SIOUX FALLS |
| N30MP LLC | DL331715 | 2026-06-22 | Active | Watertown |
| N323HA,LLC | DL004689 | 2002-04-25 | Dissolved | — |
| N324AB, LLC | DL041679 | 2014-12-22 | Active | Madison |
| N367HP LLC | DL049782 | 2016-09-01 | Active | ABERDEEN |
| N368LA LLC | DL234453 | 2022-09-12 | Dissolved | Las Vegas |
| N3793B, INC. | DB046174 | 2002-12-11 | Active | DeSmet |
| N414YH, LLC | DL004690 | 2002-04-25 | Dissolved | — |
| N430PT LLC | DL263033 | 2023-11-22 | Active | Watertown |
| N5 ACRES, LLC | DL031129 | 2013-01-28 | Active | Sioux Falls |
| N5 Properties, LLC | DL234073 | 2022-09-06 | Active | Sisseton |
| N5280W, LLC | DL006889 | 2004-02-02 | Dissolved | RAPID CITY |
| N5471D, LLC | DL309369 | 2025-09-16 | Active | Duluth |
| N55CO LLC | DL324408 | 2026-03-26 | Active | Watertown |
| N576VP LLC | DL272924 | 2024-04-16 | Active | Watertown |
| N6 CATTLE CO., L.L.C. | DL020936 | 2010-03-08 | Active | ELKTON |
| N63983 LLC | DL242608 | 2023-01-20 | Active | Turton |
| N6532N LLC | DL296728 | 2025-03-31 | Inactive | Rapid City |
| N690LY, L.L.C | DL168971 | 2019-08-19 | Dissolved | Fort Pierre |
| N7563C, LLC | DL140323 | 2017-11-29 | Dissolved | North Sioux City |
| N761BV LLC | DL241611 | 2023-01-05 | Active | Sioux Falls |
| N777JQ, LLC | DL312187 | 2025-10-24 | Active | Watertown |
| N780BH, LLC | DL128184 | 2016-11-29 | Active | Rapid City |
| N7920N LLC | DL263948 | 2023-12-07 | Active | Sioux Falls |
| N7O, LLLP | DP262289 | 2023-11-09 | Active | WATERTOWN |
| N7th Heaven, LLC | DL039158 | 2014-06-10 | Dissolved | ROCHFORD |
| N823ER, LLC | DL165664 | 2019-06-07 | Active | Renner |
| N832XX LLC | DL278064 | 2024-07-01 | Active | Watertown |
| N88BT, LLC | DL004912 | 2002-07-15 | Dissolved | SIOUX FALLS |
| N8VUnit Reconnect | NS299499 | 2025-05-05 | Active | Sioux Falls |
| NA Communications LLC | DL251841 | 2023-05-30 | Active | Watertown |
| NA IMC, INC. | DB041775 | 1999-08-20 | Dissolved | — |
| Na Makou Companies LLC | DL208208 | 2021-08-12 | Dissolved | Sioux Falls |
| NA Partners LLC | DL192501 | 2020-12-09 | Active | Omaha |
| NA'AH Medical, LLC | DL133433 | 2017-05-15 | Inactive | Miami |
| NA-CHURS PLANT FOOD CO. | FB008104 | 1981-12-18 | Inactive | MARION |
| NA-CHURS PLANT FOOD COMPANY | FB017940 | 1995-06-01 | Revoked | DOVER |
| NA-CON INC. | DB061119 | 2016-09-15 | Active | Dakota Dunes |
| NAACP EMPOWERMENT PROGRAMS, INC. | FN010357 | 1991-11-04 | Revoked | BALTIMORE |
| NAACP EMPOWERMENT PROGRAMS, INC. | FN313513 | 2025-11-12 | Active | BALTIMORE |
| Naaman Investments, LLC | DL243682 | 2023-02-03 | Active | SIOUX FALLS |
| NAASTAD INVESTMENTS, L.L.C. | DL000121 | 1994-02-16 | Dissolved | — |
| Naasz Construction LLC | DL260191 | 2023-10-06 | Dissolved | Sioux Falls |
| NAATJES CONCRETE, INC. | DB023222 | 1984-03-09 | Active | SIOUX FALLS |
| Naatjes Group, LLC | FL238742 | 2022-11-16 | Active | Watertown |
| NAAZ LLC | DL043456 | 2015-04-30 | Dissolved | MADISON |
| Naba LLC | DL190565 | 2020-11-02 | Inactive | Rapid City |
| NABACOBE Investments LLC | DL045902 | 2015-11-19 | Dissolved | WENTWORTH |
| NABANCO MERCHANT SERVICES CORPORATION | FB012663 | 1989-03-27 | Inactive | FT LAUDERDALE |
| NABC, LLC | DL134032 | 2017-06-07 | Active | Havelock |
| NABCO, INC. | 19470058D | 1947-05-07 | Dissolved | — |
| Naber Clothes Garden, LLC | DL042173 | 2015-02-02 | Dissolved | MILLER |
| NABER FINANCIAL LLC | DL181985 | 2020-05-22 | Active | SIOUX FALLS |
| Naber Land, LLC | DA279357 | 2024-07-23 | Active | ORIENT |
| Naber Land, LLC | DL279357 | 2024-07-23 | Active | ORIENT |
| Naber Properties, LLC | DL042171 | 2015-02-02 | Active | MILLER |
| Naber Trucking, LLC | DL171104 | 2019-10-03 | Active | Orient |
| NABER'S WORLD TREASURES LLC | DL011643 | 2006-06-30 | Inactive | — |
| NABHOLZ CONSTRUCTION CORPORATION | FB029389 | 2005-02-22 | Active | CONWAY |
| NABIL M. HABIB, M.D., CARDIOTHORACIC AND VASCULAR SURGERY ASSOCIATES, P.C. | DB032506 | 1993-01-04 | Inactive | — |
| NABISCO, INC. | FB000728 | 1929-06-10 | Inactive | PARSIPPANY |
| NABISCO, INC. | 19090002F | 1909-11-16 | Merged | — |
| NABORS DRILLING TECHNOLOGIES USA, INC. | FB038884 | 2015-10-13 | Active | Houston |
| NABORS DRILLING USA, INC. | FB020487 | 1997-09-09 | Inactive | HOUSTON |
| NABORS DRILLING USA, LIMITED PARTNERSHIP | FP000446 | 2001-07-03 | Inactive | HOUSTON |
| NABORS WELL SERVICES CO. | FB030447 | 2006-03-10 | Inactive | HOUSTON |
| NABORS WELL SERVICES CO. | FB034865 | 2011-01-03 | Inactive | HOUSTON |
| NABRIVA THERAPEUTICS US, INC. | FB146957 | 2018-04-16 | Inactive | Fort Washington |
| NABS, INC. | FB021151 | 1998-03-26 | Revoked | NEW YORK |
| NABS, INC. | FB024660 | 2000-12-18 | Inactive | NEW YORK |
| Nabucco Capital, LLC | DL309981 | 2025-09-23 | Active | Watertown |
| NAC Holdings, LLC | DL239080 | 2022-11-22 | Active | Milbank |
| NAC, INC. | FB015842 | 1993-02-08 | Revoked | SOLON |
| NACA OMNICIYE | NS013588 | 2007-12-07 | Inactive | — |
| NACAP, INC. | FB008377 | 1982-05-17 | Revoked | HOUSTON |
| NACB Advisory LLC | DL233242 | 2022-08-24 | Active | PIERRE |
| NACC, INC. | FB038461 | 2015-03-24 | Revoked | ARLINGTON |
| Nacelle Logistics LLC | FL318261 | 2026-01-16 | Active | Charleston |
| NACHA 501 | NS012473 | 2004-01-06 | Dissolved | RAPID CITY |
| NACHO VILLA, INC. | DB021379 | 1982-03-18 | Dissolved | — |
| NACHTIGAL FARMS, INC. | DF012021 | 1973-12-14 | Active | PLATTE |
| NACHTIGALL RANCH FAMILY LIMITED PARTNERSHIP | DP001323 | 2002-03-20 | Inactive | — |
| NACHTIGALL RANCH FAMILY LIMITED PARTNERSHIP | DP282940 | 2024-09-12 | Active | OWANKA |
| Nachtigall Rentals, LLC | DL046707 | 2016-01-15 | Active | SPEARFISH |
| Nachurs Alpine Solutions LLC | DL163341 | 2019-04-17 | Active | Dublin |
| NACI HOLDINGS, INC. | FB288321 | 2024-12-05 | Active | RINGWOOD |
| NACI Holdings, Inc. | FB247170 | 2023-03-23 | Revoked | WILMETTE |
| Nack Technology & Design LLC | DL136946 | 2017-09-12 | Dissolved | Sioux Falls |
| NACKE JEWELERS, INC. | DB011837 | 1973-08-23 | Inactive | — |
| NACO, INC. | DB030007 | 1990-11-28 | Dissolved | — |
| NACOLAH EXCHANGE, INC. | FB011793 | 1987-11-19 | Inactive | CHICAGO |
| NACOLAH EXCHANGE, INC. | FB009661 | 1984-07-02 | Revoked | CHICAGO |
| Nactua L.L.C. | DL301479 | 2025-06-01 | Active | Spearfish |
| NAD ACQUISITION 3, LLC | FL004143 | 2008-07-11 | Inactive | STAMFORD |
| NAD CORPORATION | DB049692 | 2005-05-06 | Dissolved | — |
| NAD PROPERTIES, LLC | DL028771 | 2012-07-11 | Active | RAPID CITY |
| NAD TECHNOLOGY LLC | FL140779 | 2017-12-08 | Active | Framingham |
| Nada logistics LLC | DL207879 | 2021-08-06 | Dissolved | Siouxfalls |
| Nada, LLC | DL253525 | 2023-06-26 | Dissolved | Sioux Falls |
| NADCO, INC. | DB047394 | 2003-10-06 | Inactive | — |
| Nadeka International Group LLC | DL330556 | 2026-06-06 | Active | LEAD |
| NADER'S, INC. | DB044763 | 2001-12-03 | Inactive | — |
| NADI HOMES LLC | DL255531 | 2023-07-27 | Dissolved | SIOUX FALLS |
| Nadig Family Farm LLC | DL321014 | 2026-02-17 | Active | Nisland |
| Nadine's Cleaning Service, LLC | DL167038 | 2019-07-09 | Inactive | ETHAN |
| Nadlan Valuation Inc | FB200992 | 2021-04-15 | Active | Jackson |
| Nadur Designs LLC | DL245641 | 2023-03-03 | Active | Carpenter |
| Naegele Investments, LLC | DL292309 | 2025-01-31 | Active | Rapid City |
| NAES CORPORATION | FB034454 | 2010-06-28 | Active | Issaquah |
| NAES POWER CONTRACTORS, INC. | FB029186 | 2004-12-06 | Active | Cranberry Township |
| NAESCHER FAMILY LIMITED PARTNERSHIP | DP002019 | 2009-05-29 | Active | WALL |
| NAESIP LLC | FL196179 | 2021-02-05 | Active | Mahwah |
| NAESSIG FAMILY LIMITED PARTNERSHIP | DP000929 | 1998-12-03 | Active | — |
| Naeve-Austin Family LLC | DL161545 | 2019-03-11 | Active | Rapid City |
| NAF CASH, LLC | FL260216 | 2023-10-06 | Active | NOVI |
| NAF Insurance Services, LLC | FL248791 | 2023-04-17 | Active | Novi |
| NAF Technology Services India Private Limited | FB279185 | 2024-07-19 | Active | — |
| NAFCO INC | FB329784 | 2026-05-27 | Active | Pierre |
| Nafuu Glam Decor LLC | DL247190 | 2023-03-23 | Dissolved | Sioux Falls |
| NAG, Inc. | DB058505 | 2013-12-27 | Active | — |