| OEM Rentals LLC | DL254707 | 2023-07-15 | Active | Black Hawk |
| OEM SOLUTIONS, INC. | DB041528 | 1999-06-14 | Active | Rapid City |
| OEM WORLDWIDE-NOGALES, INC. | DB037787 | 1996-10-23 | Dissolved | — |
| OEML, INC. | DB042477 | 2000-02-25 | Inactive | — |
| Oenix Technology, LLC | DL289415 | 2024-12-19 | Active | Brookings |
| OERLLINE ISR MANAGEMENT SERVICES, INC. | DB054729 | 2009-08-12 | Dissolved | RAPID CITY |
| OES DISTRIBUTING, L.L.C. | DL013503 | 2007-03-26 | Active | PARKSTON |
| OES INDUSTRIES, L.L.C. | DL024084 | 2011-03-15 | Active | PARKSTON |
| OESCHGER & ASSOCIATES, L.L.C. | DL002678 | 1999-12-29 | Dissolved | — |
| OEV LEGACY HOLDINGS LLC | DL333647 | 2026-07-15 | Active | WATERTOWN |
| OF INSURANCE AGENCY, INC. | FB027763 | 2003-10-02 | Inactive | SOUTHFIELD |
| Of Iron and Willow LLC | DL321154 | 2026-03-02 | Active | Sioux Falls |
| OFAN HOLDINGS, INC. | DB049141 | 2005-01-06 | Inactive | — |
| OFC OF ORTONVILLE, INC. | FN010535 | 1997-11-06 | Revoked | ORTONVILLE |
| OFCC, LLC | DL128395 | 2016-12-07 | Dissolved | Summerset |
| OFF CAMPUS PARTNERS, LLC | FL042126 | 2013-11-04 | Revoked | Charlottesville |
| OFF DIAGONAL ELEMENTS LLC | DL030682 | 2012-12-26 | Dissolved | CAMBRIDGE |
| Off Duty Services, Inc. | FB038753 | 2015-08-10 | Active | Houston |
| OFF Farms, LLC | DL232506 | 2022-08-12 | Active | Balaton |
| Off Grid Energy & Supply Co, LLC | FL243098 | 2023-01-26 | Active | Orange City |
| Off Grid Farmers LLC | DL331604 | 2026-06-19 | Active | Watertown |
| Off Grid Operations, LLC | DL243527 | 2023-02-02 | Active | Watertown |
| Off Grid Solutions, LLC | DL271032 | 2024-03-18 | Active | South Shore |
| OFF Holdings, LLC | DL232507 | 2022-08-12 | Active | Balaton |
| Off Hot Precision Shooting Solutions LLC | DL240380 | 2022-12-15 | Active | Rapid City |
| OFF IN THE WOODS, L.L.C. | DL028296 | 2012-05-24 | Dissolved | ABERDEEN |
| Off Market Broker, Inc. | DB194948 | 2021-01-18 | Dissolved | Watertown |
| OFF Pork, LLC | DL132514 | 2017-04-13 | Active | LAKE PRESTON |
| OFF PROPERTIES, L.L.C. | DL010920 | 2006-03-17 | Dissolved | Sioux Falls |
| Off Road Repair LLC | DL167794 | 2019-07-24 | Active | Selby |
| OFF ROAD WEST, INC. | DB022279 | 1983-04-04 | Inactive | — |
| Off the beaten path adventures, llc | DL199109 | 2021-06-20 | Dissolved | Spearfish |
| Off the Clock Chophouse, LLC | DL037131 | 2014-01-23 | Dissolved | WATERTOWN |
| Off The Glass Window Cleaning and Pressure Washing LLC | DL324685 | 2026-03-31 | Active | Sioux Falls |
| Off The Grid Camper LLC | DL139425 | 2017-11-07 | Dissolved | Sioux Falls |
| Off the Grid RV Supply LLC | DL213129 | 2021-10-27 | Dissolved | Sioux Falls |
| OFF THE HOOK CUSTOM ART AND DESIGN, LLC | DL248441 | 2023-04-11 | Dissolved | Yankton |
| Off The Press Printing & Designs LLC | DL150297 | 2018-06-26 | Dissolved | Brandon |
| OFF THE PRESS PRINTING, INC. | DB034447 | 1994-06-02 | Dissolved | SIOUX FALLS |
| Off The Rock LLC | DL236061 | 2022-10-04 | Active | Box Elder |
| OFF THE SHELF, LLC | DL025289 | 2011-07-26 | Dissolved | INGERSOLL |
| OFF THE VINE INTO WINE, LLC | DL035070 | 2013-09-26 | Active | TEMECULA |
| OFF THE WALL ADVERTISING, INC. | FB022673 | 1999-06-23 | Revoked | FARGO |
| OFF THE WALL CONSULTING, L.L.C. | DL000404 | 1995-03-17 | Inactive | — |
| Off the Wall Notes, LLC | DL248400 | 2023-04-10 | Dissolved | SIOUX FALLS |
| Off The Wall Signs, LLC | DL184830 | 2020-07-21 | Active | BRITTON |
| Off the wall solutions L.L.C. | DL206325 | 2021-07-13 | Active | Canton |
| OFF TRACK LODGING LLC | DL279650 | 2024-07-25 | Active | HURON |
| OFF YOUR ROCKER, INC. | DB059946 | 2015-04-06 | Active | Harrisburg |
| OFF-CAMPUS DINING NETWORK, LLC | FL004780 | 2009-09-30 | Inactive | GAITHERSBURG |
| OFF-PISTE REAL ESTATE CORPORATION | DB056403 | 2011-10-18 | Dissolved | RAPID CITY |
| Off-Road Junkies of SD LLC | DL164920 | 2019-05-20 | Active | Box Elder |
| OFF-ROAD MOTORVEHICLE SAFETY AND RACING INSTITUTE | NS009748 | 1992-11-19 | Inactive | — |
| OFF-ROAD RIDERS ASSOCIATION | NS009626 | 1992-05-15 | Suspended | RAPID CITY |
| Off-Road Supplies LLC | DL210293 | 2021-09-16 | Active | Lead |
| OFF-THE-CUFF STUFF LLC | DL013089 | 2007-01-30 | Active | Sioux Falls |
| Off-Trail Retreats LLC | DL173517 | 2019-11-26 | Dissolved | Rapid City |
| OFFCOURT LIMITED PARTNERSHIP | DP002557 | 2013-02-25 | Inactive | DAKOTA DUNES |
| Offen Petroleum, LLC | FL176770 | 2020-02-03 | Active | Commerce City |
| OFFEN, INC. | FB007828 | 1981-07-10 | Inactive | GREELEY |
| Offensive Holdings, LLC | DL040696 | 2014-10-17 | Active | SIOUX FALLS |
| OFFERMAN & CO., INC. | FB004327 | 1973-04-06 | Inactive | MINNEAPOLIS |
| OFFICE ALLY, INC. | FB301464 | 2025-06-01 | Active | Vancouver |
| OFFICE DEPOT, INC. | FB015562 | 1992-09-28 | Revoked | WILMINGTON |
| OFFICE DEPOT, INC. | FB024291 | 2000-09-12 | Inactive | Boca Raton |
| OFFICE DEPOT, LLC | FL186122 | 2020-08-14 | Active | Boca Raton |
| OFFICE ELECTRONICS, INC. | FB006205 | 1978-01-16 | Inactive | NORFOLK |
| OFFICE EMPORIUM, LLC | DL027856 | 2012-04-12 | Active | Belle Fourche |
| Office Equipment Company, Inc. | DB204051 | 2021-06-02 | Suspended | Aberdeen |
| OFFICE EQUIPMENT COMPANY, INCORPORATED | DB000374 | 1958-12-30 | Dissolved | ABERDEEN |
| OFFICE EQUIPMENT SEARCH LLC | DL028918 | 2012-07-24 | Dissolved | MARLTON |
| OFFICE FURNITURE SYSTEMS LLC | DL008758 | 2005-02-28 | Inactive | — |
| OFFICE INSTALLATION SPECIALISTS, INC. | DB026884 | 1987-11-17 | Dissolved | — |
| OFFICE INTERIORS, L.L.C. | DL003036 | 2000-06-08 | Inactive | SIOUX FALLS |
| OFFICE MACHINES & FURNITURE, INC. | FB015737 | 1992-12-18 | Revoked | BISMARCK |
| OFFICE OVERLOAD INC. | FB001227 | 1958-06-16 | Revoked | LOS ANGELES |
| OFFICE PEEPS, INC. | DB021092 | 1981-11-05 | Active | Watertown |
| OFFICE PRODUCTS CENTER, INC. | DB038056 | 1997-01-02 | Active | WINNER |
| Office Remote, LLC | DL198298 | 2021-03-09 | Inactive | Rapid City |
| OFFICE RESOURCE, LLC D/B/A OR, LLC | FL001923 | 2004-03-24 | Revoked | CHICAGO |
| OFFICE RESOURCES, L.L.C. | DL004952 | 2002-07-31 | Inactive | — |
| Office Revolution LLC | FL151108 | 2018-07-16 | Revoked | Bannockburn |
| OFFICE SUPERSTORE EAST LLC | FL141045 | 2017-12-14 | Active | Framingham |
| OFFICE SYSTEMS, INC. DBA TOSHIBA BUSINESS SOLUTIONS SD INC. | FB030584 | 2006-04-25 | Inactive | BISMARCK |
| OFFICEIMAGES, INC. | FB035427 | 2011-09-21 | Revoked | Roswell |
| OFFICEMAX INCORPORATED | FB003489 | 1970-01-02 | Inactive | Boca Raton |
| OFFICEMAX NORTH AMERICA, INC. | FB015320 | 1992-06-15 | Active | Boca Raton |
| OFFICEMAX, LLC | FL251049 | 2023-05-17 | Active | Boca Raton |
| OFFICERS AND MEMBERS OF THE GRAND CHAPTER, ORDER OF THE EASTERN STAR OF MAINE | 19620042ND | 1962-11-05 | Active | — |
| OFFICERS AND MEMBERS OF THE GRAND ROYAL ARCH CHAPTER OF MAINE | 18220002ND | 1822-01-19 | Active | — |
| OFFICERS ONLY INCORPORATED | FB027594 | 2003-08-14 | Revoked | OGDEN |
| OFFICERS' CHRISTIAN FELLOWSHIP OF THE UNITED STATES OF AMERICA | FN010846 | 2004-07-23 | Revoked | Englewood |
| OFFICEWORKS SUPERSTORES OF FARGO, INC. | DB027620 | 1988-08-12 | Dissolved | — |
| OFFICIAL ENTERPRISES, INC. | DB022048 | 1982-12-30 | Inactive | — |
| OFFICIAL MINING LLC | DL217830 | 2022-01-05 | Active | Aberdeen |
| OFFICIAL SECURITY LLC | DL028764 | 2012-07-10 | Active | PIERRE |
| OFFICIAL SERVICES, INC. | DB016787 | 1979-06-12 | Dissolved | BlackHawk |
| OFFICIAL SITE LLC | DL013339 | 2007-03-05 | Inactive | — |
| OFFICIALQUOTE, L.L.C. | FL004061 | 2008-05-12 | Inactive | CARLSBAD |
| Offroad Powersports LLC | DL262086 | 2023-11-08 | Revoked | SIOUX FALLS |
| OFFROAD SUPPLIES, LLC | DL012433 | 2006-11-06 | Dissolved | — |
| OFFS, LLC | DL147730 | 2018-05-02 | Dissolved | Oelrichs |
| OFG FINANCIAL SERVICES, INC. | FB014967 | 1991-12-09 | Active | TOPEKA |
| Ofishal Consulting LLC | DL232366 | 2022-08-10 | Active | PARKER |
| OFMC LLC | DL153418 | 2018-09-05 | Dissolved | Aberdeen |
| OFOM Properties, LLC | DL155508 | 2018-10-24 | Active | Tea |
| OFP SERVICES INC. | DB058471 | 2013-11-12 | Dissolved | Sioux Falls |
| Ofrendas LLC | DL303931 | 2025-07-05 | Active | SIOUX FALLS |
| OFS 2 DEAL 2, LLC | FL042449 | 2014-02-10 | Inactive | HOUSTON |
| OFS BENSON ROAD, LLC | DL025793 | 2011-09-22 | Dissolved | SIOUX FALLS |
| OFS INTERNATIONAL LLC | FL043144 | 2014-12-04 | Revoked | HOUSTON |
| OFS INTERNATIONAL, INC. | DB036348 | 1995-10-19 | Inactive | — |
| Ofstad Investments, LLC | DL330911 | 2026-06-11 | Active | Rapid City |
| Ofstein Properties, LLC | DL040370 | 2014-09-18 | Active | SIOUX FALLS |
| Oftedahl Truck & Trailer, LLC | DL036879 | 2014-01-10 | Dissolved | TORONTO |
| Oftedal Construction, Inc | DB177924 | 2020-02-26 | Active | Miles City |
| OFTEDAL CONSTRUCTION, INC. | FB015402 | 1992-07-20 | Revoked | MILES CITY |
| OFTON, LLC | DL144693 | 2018-03-01 | Active | Wentworth |
| OFXB, Inc. | DB172314 | 2019-10-29 | Active | WATERTOWN |
| OG BIKEWORKS LLC | DL263196 | 2023-11-27 | Dissolved | SIOUX FALLS |
| OG Companies, LLC | DL305002 | 2025-07-18 | Active | Worthing |
| OG ENERGY, LLC | DL022817 | 2010-11-04 | Inactive | Sioux Falls |
| OG Ice Cream LLC | DL297289 | 2025-04-06 | Active | Pierpont |
| OG's Bounce Around Inflatables, LLC | DL246811 | 2023-03-19 | Active | Yankton |
| OG-26, LLC | DL321808 | 2026-02-25 | Active | Rapid City |
| OGAN BROTHERS, LLC | DL181467 | 2020-05-13 | Active | Pierre |
| OGAN FAMILY LIMITED PARTNERSHIP | DP002479 | 2012-12-17 | Active | PIERRE |
| OGAN FERTILIZER, INC. | DB040990 | 1999-01-20 | Dissolved | — |
| Ogborn Mihm Quaintance, Prof. L.L.C. | DL166239 | 2019-06-19 | Inactive | Sioux Falls |
| Ogborn Mihm, LLP | FR165394 | 2019-05-31 | Inactive | Sioux Falls |
| Ogborn Mihm, PLLC | FL217372 | 2021-12-29 | Active | DENVER |
| OGC, LLC | DL244667 | 2023-02-17 | Active | GARRETSON |
| OGD Services LLC | DL327541 | 2026-04-30 | Active | Brookings |
| OGDEN CONFECTION CORPORATION | FB004604 | 1974-02-27 | Inactive | NEW YORK |
| OGDEN NEWSPAPERS OF MINNESOTA, INC. | FB026579 | 2002-09-03 | Revoked | FORT DODGE |
| Ogden Publications, Inc. | DB218878 | 2022-01-31 | Active | BELLE FOURCHE |
| OGDEN RE HOLDINGS, LLC | DL022719 | 2010-10-25 | Active | McKinney |
| OGDIE ENTERPRISES, L.L.C. | DL016614 | 2008-05-30 | Active | SIOUX FALLS |
| OGDIE'S AFFORDABLE STORAGE, INC. | DB035745 | 1995-04-24 | Inactive | — |
| OGIER ASSOCIATES, A CALIFORNIA LIMITED PARTNERSHIP | FP000273 | 1995-12-01 | Active | SUNNYVALE |
| OGILVIE SECURITY ADVISORS, CORP. | FB020509 | 1997-09-15 | Revoked | LAKE FOREST |
| Ogilvie, LLC | DL042612 | 2015-03-06 | Active | SIOUX FALLS |
| Ogilvie, LLC | DL136232 | 2017-08-22 | Inactive | Sioux Falls |
| OGLALA AND ASSOCIATES, INC. | FB017624 | 1995-02-06 | Revoked | ROSEVILLE |
| OGLALA DISTRIBUTIVE GENERATION SYSTEM, LLC | DL042283 | 2015-02-12 | Dissolved | PINE RIDGE |
| Oglala House of Worship | CH154124 | 2018-09-20 | Dissolved | Pine Ridge |
| Oglala Lakota Air Rescue, LLC | DL165776 | 2019-06-10 | Active | AMARILLO |
| OGLALA LAKOTA ARCHIVAL SOCIETY | NS007826 | 1984-04-10 | Inactive | — |
| OGLALA LAKOTA ARTS CENTER, LLC | DL044064 | 2015-06-22 | Active | KYLE |
| Oglala Lakota Childrens Justice Center, Inc. (translates in Lakota: Oglala Lakota Wakanyeja O'wajkya Tipi | NS010920 | 1997-11-20 | Active | PINE RIDGE |
| OGLALA LAKOTA COLLEGE | FN010565 | 1998-09-04 | Active | WASHINGTON |
| Oglala Lakota Consultancy LLC | DL172503 | 2019-11-03 | Dissolved | Allen |
| Oglala Lakota County School Dist 651 | NS229752 | 2022-06-29 | Dissolved | Batesland |
| Oglala Lakota County School District Development Office | NS165007 | 2019-05-22 | Active | BATESLAND |
| Oglala Lakota Division of Behavioral Health | FN277573 | 2024-07-08 | Active | Martin |
| OGLALA LAKOTA HISTORICAL SOCIETY, INC. | NS009279 | 1990-11-09 | Inactive | — |
| OGLALA LAKOTA LEGAL RIGHTS FUND, INC. | NS007293 | 1981-11-30 | Inactive | — |
| OGLALA LAKOTA NATION CHAMBER OF COMMERCE, INC. | NS010322 | 1995-05-04 | Inactive | — |
| OGLALA LAKOTA NATION EDUCATION COALITION | NS014322 | 2010-05-18 | Dissolved | MARTIN |
| OGLALA LAKOTA OPPORTUNITIES INDUSTRIALIZATION CENTER | NS009891 | 1993-06-24 | Inactive | — |
| OGLALA LAKOTA SPIRITUAL CENTER, INCORPORATION | NS007478 | 1982-11-22 | Inactive | — |
| Oglala Lakota Structural Fire Department | NS161618 | 2019-03-12 | Dissolved | Pine Ridge |
| Oglala Lakota Veterans of the United States Armed Forces | FN030481 | 2015-11-20 | Active | PINE RIDGE |
| OGLALA LAKOTA VIETNAM VETERANS ASSOCIATION, INC. | NS008483 | 1987-03-11 | Inactive | — |
| OGLALA NATION EDUCATION COALITION | NS011427 | 2000-02-18 | Inactive | — |
| OGLALA PET PROJECT | NS014734 | 2011-12-29 | Active | KYLE |
| Oglala Pride LLC | DL277348 | 2024-06-19 | Active | WATERTOWN |
| Oglala Pride Processing LLC | DL280983 | 2024-08-13 | Dissolved | Watertown |
| OGLALA SIOUX CORPORATION | NS007516 | 1983-02-07 | Inactive | — |
| OGLALA SIOUX INDUSTRIES, INCORPORATED | DB012855 | 1975-04-25 | Inactive | — |
| OGLALA SIOUX PRODUCTS, INC. | DB019676 | 1980-04-28 | Inactive | — |
| OGLALA SIOUX RETIREMENT HOME, INC. | DB028531 | 1989-06-30 | Inactive | — |
| OGLALA SIOUX TRIBAL PARKS & RECREATIONAL AUTHORITY | NS008220 | 1985-12-19 | Inactive | — |
| Oglala Sioux Tribe Air Rescue, LLC | DL139639 | 2017-11-09 | Dissolved | KYLE |
| OGLALA SIOUX TRIBE PARTNERSHIP FOR HOUSING, INC. | NS011673 | 2001-01-22 | Active | Pine Ridge |
| Oglala Sioux Tribe Project Venture Inc | DB161534 | 2019-03-11 | Dissolved | Kyle |
| Oglala Sioux Tribe Veterans, LLC | DL222895 | 2022-03-17 | Dissolved | Wounded Knee, SD |
| OGLALA SIOUX VETERANS ASSOCIATION, INC. | NS008646 | 1987-12-23 | Inactive | — |
| Oglala Technology Group, LLC | DL181272 | 2020-05-09 | Dissolved | Martin |
| Oglala Tiwahe Foundation, Inc. | NS329830 | 2026-05-27 | Active | PORCUPINE |
| OGLETREE, DEAKINS, NASH, SMOAK & STEWART, P.C. | FB037581 | 2014-03-07 | Inactive | GREENVILLE |
| OGLETREE, DEAKINS, NASH, SMOAK & STEWART, P.C. | FB038786 | 2015-08-21 | Active | Greenville |
| OGND Enterprises LLC | DL180310 | 2020-04-22 | Dissolved | Jefferson |
| OGREN ANGUS, INC. | DB195212 | 2021-01-22 | Active | LANGFORD |
| Ogren Farm Trucking, LLC | DL239731 | 2022-12-05 | Active | Langford |
| OGUNQUIT CHAMBER OF COMMERCE | 19660069ND | 1966-11-28 | Active | — |
| OGUNQUIT MOTEL CORPORATION | 19600118D | 1960-03-18 | Active | — |
| OGUNQUIT MUSEUM OF AMERICAN ART | 19510045ND | 1951-09-27 | Active | — |
| OGWD Concrete, Inc. | DB005889 | 1946-08-23 | Active | SIOUX FALLS |
| OGWD Land, LLC | DL017377 | 2008-09-18 | Active | SIOUX FALLS |
| OGYERBP OPN, Limited Partnership | DP314979 | 2025-12-03 | Active | SIOUX FALLS |
| Oh Alice LLC | DL227016 | 2022-05-13 | Active | Sioux Falls |
| Oh Baby O's No. 2, LLC | DL039111 | 2014-06-06 | Inactive | WATERTOWN |
| Oh Baby O's Soft Pretzel, LLC | DL285611 | 2024-10-23 | Active | Watertown |
| Oh Baby O's, LLC | DL177578 | 2020-02-19 | Dissolved | Henry |
| Oh Baby O's, LLC | DL264190 | 2023-12-12 | Inactive | Watertown |
| Oh Family Realty, LLC | DL147246 | 2018-04-23 | Active | Sioux Falls |
| OH Fleet Holdings, L.L.C. | DL318692 | 2026-01-21 | Active | Yankton |
| Oh Fudge!, LLC | DL048640 | 2016-05-25 | Inactive | DEADWOOD |
| OH LA LA BEAUTY AND LASHES STUDIO LLC | DL032879 | 2013-06-20 | Active | Rapid City |