| Olive's Home Realty, LLC | DL311233 | 2025-10-10 | Active | Sioux Falls |
| OLIVE'S MERCANTILE, INC. | DB039733 | 1998-03-04 | Inactive | — |
| Oliveira Group LLC | DL135877 | 2017-08-14 | Dissolved | harrisburg |
| Oliver & Company Aviation LLC | DL267363 | 2024-01-29 | Active | Watertown |
| Oliver Agri Holdings, LLC | DL020301 | 2009-12-02 | Active | Hudson |
| OLIVER AVE L.L.C. | DL147310 | 2018-04-24 | Active | Minneapolis |
| OLIVER EXCAVATING, INC. | DB042403 | 2000-02-03 | Dissolved | TEA |
| OLIVER FAMILY FARMS, INC. | DB024724 | 1985-09-20 | Active | ABERDEEN |
| Oliver Farm & Ranch, LLC | DL215327 | 2021-11-30 | Dissolved | Newell |
| Oliver Farm, LLP | DR316141 | 2025-12-19 | Active | HUNTINGTON BEACH |
| OLIVER FARMS, INC. | DF020304 | 1981-01-02 | Active | Canton |
| Oliver Home & Land LLC | DL255418 | 2023-07-26 | Active | SIOUX FALLS |
| Oliver Hotels & Resorts, LLC | DL327813 | 2026-05-04 | Active | DULUTH |
| Oliver Investments LLC | DL261069 | 2023-10-19 | Active | Chamberlain |
| Oliver James Asset Management LLC | DL154364 | 2018-09-25 | Active | SANTA MONICA |
| OLIVER PACKAGING AND EQUIPMENT COMPANY | FB033962 | 2009-11-16 | Inactive | Walker |
| OLIVER PACKAGING AND EQUIPMENT COMPANY, LLC | FL306023 | 2025-07-31 | Active | Walker |
| OLIVER RANCHING INC. | DF019309 | 1979-12-20 | Dissolved | SHADEHILL |
| Oliver Street Series of Bright Star Rentals, LLC | DL242648 | 2023-01-20 | Active | SPEARFISH |
| OLIVER TRAVEL TRAILERS, INC. | FB263631 | 2023-12-04 | Inactive | HOHENWALD |
| Oliver Trucking, LLC | DL200856 | 2021-04-14 | Dissolved | Lemmon |
| OLIVER VENDING AND MUSIC SYSTEMS | 19660178D | 1966-11-21 | Active | — |
| OLIVER'S FLOORING LLC | DL319255 | 2026-01-28 | Active | TEA |
| OLIVER'S, L.L.C. | DL000198 | 1994-06-09 | Inactive | — |
| Oliver, LLC | DL263206 | 2023-11-27 | Active | Pierre |
| Olivers and Company Inc. | DB271508 | 2024-05-01 | Suspended | Box Elder |
| Olivers Plumbing LLC | DL253492 | 2023-06-25 | Active | Baltic |
| Olives Foot Massage LLC | DL164924 | 2019-05-20 | Inactive | Rapid City |
| OLIVES FOOT MASSAGE LLC | DL183396 | 2020-06-23 | Inactive | RAPID CITY |
| OLIVET CEMETERY ASSOCIATION | NS006256 | 1977-06-08 | Inactive | — |
| OLIVET CHRISTIAN CHURCH | CH253457 | 2023-07-01 | Active | OLIVET |
| OLIVET COMMUNITY CENTER, INC. | NS004821 | 1970-09-23 | Dissolved | OLIVET |
| OLIVET PRESBYTERIAN SOCIETY OF VOLGA DAKOTA TERRITORY | CH000546 | 1881-06-13 | Dissolved | VOLGA |
| OLIVET UNITED METHODIST CHURCH | CH000103 | 1959-10-28 | Dissolved | OLIVET |
| OLIVET, SD | CI000097 | 1896-04-08 | Active | — |
| OLIVETTI OFFICE USA, INC. | FB013689 | 1990-07-09 | Inactive | WILMINGTON |
| OLIVETTI USA, INC. | FB005313 | 1976-04-21 | Revoked | BRIDGEWATER |
| Olivewood Capital Assets, LLC | DL219826 | 2022-02-02 | Dissolved | Sioux Falls |
| Olivia Adendorff Insurance, LLC | DL234430 | 2022-09-12 | Active | Pierre |
| OLIVIA ELLEN, LLC | DL151682 | 2018-07-27 | Dissolved | Aberdeen |
| Olivia Frisvold Studio Photo & Fine Art L.L.C | DL281021 | 2024-08-14 | Active | Lemmon |
| OLIVIA KATE HANDLER IRREVOCABLE EDUCATION TRUST DATED JULY 1, 2015 | DT043818 | 2015-07-16 | Inactive | — |
| OLIVIA SYSTEMS, INC. | FB020214 | 1997-06-23 | Inactive | WILMINGTON |
| Olivia Viterna LLC | DL210643 | 2021-09-21 | Inactive | Rapid City |
| Olivia's Angels Foundation | NS297544 | 2025-04-09 | Active | North Sioux City |
| OLIVIA'S OF SOUTH DAKOTA, LLC | DL013640 | 2007-04-10 | Active | TEA |
| Olivier Construction, LLC | DL018603 | 2009-03-30 | Active | ONIDA |
| OLIVIER FIELD SERVICE REPAIRS AND WELDING L.L.C. | DL234987 | 2022-09-20 | Dissolved | Murdo |
| OLIVIER HEALTH SERVICES LLC | DL025669 | 2011-09-09 | Dissolved | CHAMBERLAIN |
| OLIVIER MILES HOLTZ, LLP | DR156553 | 2018-11-19 | Active | SIOUX FALLS |
| Olivier Real Estate LLC | DL045906 | 2015-11-19 | Active | Rapid City |
| OLIVIER-FRANCE LIMITED | DB019553 | 1980-03-14 | Inactive | — |
| OLL EV CO LLC | DL253265 | 2023-06-21 | Active | Box Elder |
| OLLERICH CATTLE CO., INC. | DF039308 | 1997-12-08 | Dissolved | COLTON |
| Ollerich Cattle Company, LLC | DL036838 | 2014-01-09 | Active | HARTFORD |
| OLLERICH ENGINEERING, INC. | DB040697 | 1998-11-16 | Dissolved | SIOUX FALLS |
| Ollerich Farms Homeowners Association, Inc. | NS173479 | 2019-11-25 | Active | Sioux Falls |
| Ollerich Farms, LLC | DL138699 | 2017-10-19 | Active | Sioux Falls |
| OLLERICH FEED YARDS, L.L.C. | DA013253 | 2007-02-20 | Dissolved | ELKTON |
| OLLERICH LIVESTOCK, LLC | DL019790 | 2009-09-21 | Dissolved | COLTON |
| Olli Insurance, LLC | FL329296 | 2026-05-20 | Active | Edisto Island |
| Ollie's LLC | DL247695 | 2023-03-30 | Dissolved | Belle fourche |
| OLLIG UTILITIES COMPANY | FB008777 | 1983-01-24 | Inactive | ADA |
| Ollila Ranch Enterprises LLC | DL037763 | 2014-03-10 | Active | NEWELL |
| Olmsted Medical Center | FN030315 | 2013-12-05 | Inactive | ROCHESTER |
| OLNESS INVESTMENT AND ENGINEERING AND RESEARCH CONSULTING, INCORPORATED | DB054910 | 2009-11-18 | Active | Peoria |
| OLNEY AUTO LLP | DR000470 | 2000-05-10 | Inactive | — |
| Olney Center, LLC | DL207013 | 2021-07-22 | Active | Sioux Falls |
| Olney Centre LLC | DL196575 | 2021-02-11 | Dissolved | Sioux Falls |
| OLP Brewing, LLC | DL320420 | 2026-02-10 | Active | Aberdeen |
| OLS Wireless Holdings II, LLC | DL038775 | 2014-05-12 | Inactive | SALEM |
| OLS Wireless Holdings, LLC | DL038774 | 2014-05-12 | Inactive | SALEM |
| OLS, INC. | FB021283 | 1998-05-01 | Inactive | ALPHARETTA |
| Olsen Black Hills Realty LLC | DL169994 | 2019-09-10 | Inactive | Black Hawk |
| OLSEN COMMERCIAL HOLDINGS, L.L.C. | DL021388 | 2010-04-30 | Inactive | Sioux Falls |
| OLSEN COMPUTING INC. | DB023878 | 1984-10-26 | Inactive | — |
| OLSEN DEVELOPMENT COMPANY, INC. | DB033012 | 1993-05-07 | Active | BLACK HAWK |
| OLSEN DISTRIBUTING CORPORATION | DB027821 | 1988-10-31 | Dissolved | — |
| OLSEN ELECTRIC, INC. | FB031206 | 2006-12-07 | Active | IHLEN |
| OLSEN EXPORT TRADING COMPANY, LTD. | DB027822 | 1988-10-31 | Inactive | — |
| OLSEN FAMILY FARM, L.L.C. | DL020664 | 2010-01-25 | Active | BERESFORD |
| Olsen Family Kennels LLC | DL160669 | 2019-02-21 | Active | Beresford |
| OLSEN FARMS, INCORPORATED | DF013271 | 1975-12-22 | Active | PLATTE |
| OLSEN FRANKMAN LIVESTOCK MARKETING SERVICE, INC. | DB003261 | 1934-10-19 | Dissolved | SIOUX FALLS |
| Olsen Genetics, Inc. | DB058966 | 2014-04-08 | Dissolved | IRENE |
| OLSEN IMPLEMENT, INC. | DB014682 | 1977-09-22 | Dissolved | HURON |
| Olsen Investments, LLC | DL045095 | 2015-09-11 | Active | NEW UNDERWOOD |
| OLSEN MARINE & SPORTING GOODS, INC. | DB024953 | 1985-12-17 | Dissolved | — |
| Olsen Performance Team, LLC | FL154544 | 2018-09-29 | Active | Spring |
| Olsen Pulse Therapy LLC | DL262816 | 2023-11-19 | Dissolved | Platte |
| OLSEN RANCH, L.L.C. | DL021785 | 2010-06-24 | Dissolved | SPEARFISH |
| Olsen Rentals LLC | DL238697 | 2022-11-16 | Active | MOUNT VERNON |
| Olsen Road Stop, LLC | DL140493 | 2017-12-02 | Active | Platte |
| Olsen Solutions L.L.C. | DL318763 | 2026-01-22 | Active | Spearfish |
| OLSEN STRIPTILL, INC. | DB055862 | 2011-01-13 | Active | HAYTI |
| OLSEN TILING, LLC | DL026548 | 2011-12-14 | Dissolved | HAYTI |
| OLSEN TRENCHING & ELECTRIC, INC. | DB036313 | 1995-10-04 | Active | Fox Prairie Township |
| OLSEN TRUCKING INC | DB241662 | 2023-01-06 | Active | Fox Prairie Township |
| Olsen Yorkshires, LLC | DL039737 | 2014-08-04 | Active | IRENE |
| OLSEN-BEAL ASSOCIATES CORPORATION | FB027323 | 2003-05-19 | Active | LINDON |
| Olsen-Buchholz Family LLLP | DP213523 | 2022-01-01 | Active | HITCHCOCK |
| OLSEN-KNECHT, L.L.C. | DL000922 | 1996-08-13 | Dissolved | — |
| OLSENART, INC. | DB031725 | 1992-05-05 | Inactive | — |
| OLSHAN DEMOLISHING COMPANY, INC. | FB013765 | 1990-08-13 | Inactive | OAK BROOK |
| OLSHAN DEMOLISHING MANAGEMENT, INC. | FB018016 | 1995-06-29 | Revoked | METHUEN |
| Olson & Lemme Enterprises, L.L.C. | DL040945 | 2014-11-03 | Inactive | SIOUX FALLS |
| Olson Acreage, LLC | DL296359 | 2025-03-25 | Active | Brandon |
| OLSON ADDITION LLC | DL011592 | 2006-06-22 | Dissolved | BEWICIA |
| Olson Agency LLC | DL188373 | 2020-09-28 | Dissolved | Artesian |
| Olson Agricultural Services LLC | DL233759 | 2022-08-31 | Active | Aurora |
| OLSON AND ASSOCIATES INSURORS, INC. | DB020306 | 1981-01-05 | Dissolved | SIOUX FALLS |
| OLSON AND MILLER DEVELOPMENT L.L.C. | DL004382 | 2002-01-17 | Inactive | — |
| Olson Antiques and Quilts LLC | DL038469 | 2014-04-24 | Dissolved | BROOKINGS |
| Olson Auto, LLC | DL040701 | 2014-10-14 | Active | RAPID CITY |
| OLSON BROTHERS FARMS, L.L.C. | DA017103 | 2008-08-06 | Inactive | PARKSTON |
| OLSON BROTHERS LLC | DL174751 | 2019-12-20 | Active | PLATTE |
| Olson Commodities, LLC | DL319326 | 2026-01-28 | Active | Sioux Falls |
| OLSON CONCRETE LLC | DL025238 | 2011-07-20 | Dissolved | Madison |
| OLSON CONSTRUCTION COMPANY | FB000785 | 1934-11-08 | Revoked | LINCOLN |
| Olson Construction Company LLC | DL290359 | 2025-01-06 | Active | Beresford |
| OLSON CONSTRUCTION, INC. | DB053330 | 2008-02-25 | Dissolved | RAPID CITY |
| OLSON CONSULTING LLC | DL296283 | 2025-03-24 | Dissolved | SIOUX FALLS |
| Olson Consulting, Inc. | DB038466 | 1997-04-21 | Dissolved | SIOUX FALLS |
| Olson Contracting LLC | DL190321 | 2020-10-29 | Active | Watertown |
| OLSON CONTRACTING, INC. | DB042329 | 2000-01-13 | Inactive | — |
| Olson Contractors LLC | DL326382 | 2026-04-17 | Active | Sioux Falls |
| Olson Counseling and Consulting, LLC | DL143180 | 2018-01-26 | Inactive | Sioux Falls |
| Olson Crop Services, LLC | DL136084 | 2017-08-18 | Active | Salem |
| Olson Custom Plastics CO | DB317169 | 2026-01-06 | Active | North SIoux CIty |
| Olson Designs LLC | DL246262 | 2023-03-11 | Inactive | Sioux Falls |
| Olson Drain Cleaning L.L.C. | DL313916 | 2025-11-18 | Active | Sioux Falls |
| OLSON EMPRISES, INC. | DB037334 | 1996-06-12 | Inactive | — |
| OLSON ENTERPRISES, INC. | FB029918 | 2005-08-30 | Active | HELENA |
| Olson Estate Properties, LLC | DL150879 | 2018-07-10 | Active | Freeman |
| OLSON EXCAVATING, INC. | DB030359 | 1991-03-05 | Active | RAPID CITY |
| OLSON FAMILY LAND LIMITED PARTNERSHIP | DP000325 | 1993-04-12 | Inactive | — |
| Olson Family Land Limited Partnership | DP281998 | 2024-08-29 | Active | PIERRE |
| OLSON FAMILY LIMITED PARTNERSHIP | DP002173 | 2010-12-23 | Active | SIOUX FALLS |
| Olson Family Ranch, LLC | DL319287 | 2026-01-28 | Active | Witten |
| OLSON FARMING OPERATIONS, LLC | DL013485 | 2007-03-22 | Active | ONIDA |
| Olson Farms LLC | DL304126 | 2025-07-08 | Active | Aberdeen |
| Olson Fiberworks, LLC | DL162916 | 2019-04-08 | Dissolved | GARY |
| OLSON FINANCIAL LIMITED PARTNERSHIP | DP000409 | 1994-07-21 | Inactive | — |
| Olson Flooring Installation LLC | DL152506 | 2018-08-15 | Dissolved | Brookings |
| OLSON FUELS PROPERTIES, LLC | DL156174 | 2018-11-09 | Active | Buffalo |
| OLSON FUELS, LLC | DL156175 | 2018-11-09 | Active | Buffalo |
| Olson Funeral Chapel, Inc. | DB251888 | 2023-05-31 | Active | BRITTON |
| OLSON GRAIN, INC. | DF036643 | 1995-12-29 | Active | PLATTE |
| OLSON GRAPHIC PRODUCTS, INC. | FB004660 | 1974-04-24 | Revoked | ST. PAUL |
| Olson Hauling LLC | DL187295 | 2020-09-06 | Dissolved | Sturgis |
| OLSON HEATING & AIR, LLC | DL192990 | 2020-12-16 | Active | Mobridge |
| OLSON HEATING & COOLING, L.L.C. | DL031781 | 2013-03-25 | Dissolved | KIMBALL |
| OLSON INSURANCE GROUP, INC. | DB052619 | 2007-07-27 | Inactive | SIOUX FALLS |
| Olson Investment Group L.L.C. | DL036185 | 2013-12-02 | Dissolved | Phoenix |
| Olson Investment Properties LLC | DL228237 | 2022-06-03 | Active | Sioux Falls |
| OLSON INVESTMENTS, INC. | DB040509 | 1998-09-17 | Dissolved | SIOUX FALLS |
| OLSON LAND AND LIVESTOCK, INC. | DF007008 | 1967-10-17 | Active | PLATTE |
| OLSON LAND HOLDINGS, L.L.C. | DL017308 | 2008-09-08 | Active | Sloan |
| OLSON LAND SERVICES, INC. | FB033375 | 2009-04-06 | Revoked | BISMARCK |
| OLSON LAW FIRM, PLLC | DL050612 | 2016-11-09 | Active | SIOUX FALLS |
| OLSON LEASING, LLC | DL038106 | 2014-03-27 | Dissolved | RAPID CITY |
| OLSON MANAGEMENT, LLC | DL022987 | 2010-11-24 | Inactive | Turton |
| OLSON MASONRY, INC. | DB053278 | 2008-02-11 | Suspended | BROOKINGS |
| OLSON MILLING, INC. | FB027240 | 2003-04-22 | Revoked | CLARK |
| Olson Millwright Services LLC | DL139410 | 2017-11-06 | Dissolved | Wilmot |
| OLSON MOBILE TRUCK SERVICE, LLC | DL023091 | 2010-12-08 | Dissolved | IRENE |
| OLSON OIL CO. | DB011414 | 1972-12-19 | Active | SIOUX FALLS |
| Olson PA-C Outreach, Prof. LLC | DL152001 | 2018-08-02 | Active | Sioux Falls |
| OLSON PAINTING & WALLCOVERING, INC. | DB036639 | 1995-12-29 | Inactive | — |
| OLSON PLATING, INC. | DB021829 | 1982-09-29 | Inactive | — |
| OLSON PLUMBING, INC. | DB031131 | 1991-11-21 | Active | PIERRE |
| Olson Propane, LLC | DL150714 | 2018-07-05 | Active | Buffalo |
| Olson Properties LLC | DL293123 | 2025-02-12 | Active | Box Elder |
| Olson Properties SF, LLC | DL264944 | 2023-12-21 | Active | Sioux Falls |
| OLSON PROPERTIES, LLC | DL023851 | 2011-02-22 | Inactive | WATERTOWN |
| Olson Ranch, LLC | DL141087 | 2017-12-15 | Active | Wessington Springs |
| OLSON REID POST 250 OF THE AMERICAN LEGION OF CASTLEWOOD, SOUTH DAKOTA | NS001446 | 1955-04-02 | Active | CLEAR LAKE |
| Olson Rental Properties, LLC | DL036737 | 2014-01-02 | Active | RAPID CITY |
| Olson Rentals LLC | DL305377 | 2025-07-23 | Active | Colome |
| Olson Restoration, LLC | FL286609 | 2024-11-07 | Active | Westminster |
| Olson Seed and Services, Inc. | DB060239 | 2015-07-31 | Dissolved | PARKER |
| OLSON SEED, LLC | DL037360 | 2014-02-06 | Active | BRADLEY |
| OLSON SOD FARMS, L.L.C. | DL006290 | 2003-09-22 | Active | MECKLING |
| Olson Transport LLC | DL246758 | 2023-03-20 | Dissolved | Rapid City |
| OLSON TRUCKING, INC. | DB024572 | 1985-07-15 | Inactive | — |
| OLSON TRUCKING, INC. | DB054185 | 2008-12-31 | Dissolved | SIOUX FALLS |
| OLSON WELDING & REPAIR, LLC | DL012396 | 2006-10-30 | Dissolved | PLATTE |
| Olson Williamson Enterprises, LLC | DL040358 | 2014-09-22 | Inactive | Sturgis |
| OLSON&LUKE LLC | DL315646 | 2025-12-12 | Active | Sioux Falls |
| OLSON'S AUTO PARTS, INC. | DB024485 | 1985-06-14 | Dissolved | CLARK |
| Olson's Auto Recycling LLC | DL189198 | 2020-10-12 | Dissolved | FLANDREAU |
| Olson's Carpet & Furniture LLC | DL280695 | 2024-08-08 | Active | Lemmon |
| OLSON'S HARDWARE, INC. | DB035351 | 1995-01-30 | Active | BERESFORD |
| OLSON'S MOTOR COMPANY | DB006505 | 1953-01-02 | Dissolved | CLARK |
| OLSON'S PLEASANT VALLEY FARMS, INC. | FB018023 | 1995-07-03 | Revoked | ORTONVILLE |
| OLSON'S PROPERTIES, INC. | DB013656 | 1976-06-29 | Dissolved | BELLE FOURCHE |
| OLSON'S TERMITE & PEST CONTROL, INC. | DB021478 | 1982-04-28 | Inactive | — |
| OLSON-OGAARD FAMILY LIMITED PARTNERSHIP | DP002069 | 2009-12-22 | Active | RAPID CITY |
| OLSON-REID UNIT #250, AMERICAN LEGION AUXILIARY | NS011466 | 2000-04-05 | Dissolved | Hayti |
| OLSON-SWAN FAMILY LIMITED PARTNERSHIP | DP002070 | 2009-12-22 | Active | NISLAND |