| WESTERN MUTUAL LIFE & CASUALTY COMPANY | — | IN000097 | 1943-06-05 | Inactive | — |
| WESTERN MUTUAL LIFE INSURANCE COMPANY | — | IN000091 | 1905-09-15 | Active | — |
| WESTERN NATIONAL MARKETING GROUP, INC. | — | FB033499 | 2009-05-21 | Inactive | HOUSTON |
| WESTERN NATIVE ENTERPRISES, INC. | — | DB034469 | 1994-06-09 | Inactive | — |
| WESTERN NEBRASKA INVESTMENT CO. | — | FB003087 | 1968-08-06 | Revoked | San Deigo |
| WESTERN OFFICE PRODUCTS PLUS, INC. | — | FB020176 | 1997-06-09 | Revoked | YANKTON |
| WESTERN OFFICE SUPPLY, INC. | — | FB011491 | 1987-05-22 | Inactive | KIMBALL |
| Western Oil II LLC | — | FL255385 | 2023-07-25 | Active | Valentine |
| WESTERN OIL WELL SERVICE CO. | — | FB009299 | 1983-12-19 | Inactive | HOUSTON, |
| WESTERN OILFIELDS SUPPLY COMPANY | — | FB159100 | 2019-01-18 | Active | Bakersfield |
| WESTERN ON MAIN, L.L.C. | — | DL017246 | 2008-08-27 | Dissolved | MITCHELL |
| WESTERN ORGANIZATION OF RESOURCE COUNCILS | — | FN151758 | 2018-07-30 | Active | BILLINGS |
| WESTERN ORGANIZATION OF RESOURCE COUNCILS | — | FN011018 | 2007-08-03 | Revoked | BROOKINGS |
| WESTERN OUTFITTERS SERVICES, INC. | Agriculture and forestry | DB035760 | 1995-04-26 | Active | Gregory |
| WESTERN PAGING II CORPORATION | — | FB018356 | 1995-10-23 | Revoked | SEATTLE |
| WESTERN PAGING II CORPORATION | — | FB021465 | 1998-06-18 | Inactive | BELLEVUE |
| WESTERN PAPER & SUPPLY CO. OF SIOUX CITY | — | FB005324 | 1976-04-26 | Inactive | SIOUX CITY |
| WESTERN PARK LIMITED PARTNERSHIP | — | DP000414 | 1994-08-16 | Active | — |
| WESTERN PARTNERS LLP | — | DR147411 | 2018-04-26 | Active | ABERDEEN |
| WESTERN PARTNERS, LLC | — | DL028837 | 2012-07-16 | Dissolved | MADISON |
| WESTERN PAVEMENT SOLUTIONS COMPANY | — | FB036102 | 2012-07-12 | Inactive | BREA |
| WESTERN PCS I CORPORATION | — | FB018602 | 1996-01-26 | Inactive | WILMINGTON |
| WESTERN PCS III LICENSE CORPORATION | — | FB018525 | 1995-12-28 | Inactive | ISSAQUAH |
| Western Peaks Logistics, LLC | — | FL284994 | 2024-10-11 | Active | Salt Lake City |
| WESTERN PENNINGTON COUNTY DRAINAGE DISTRICT | — | DM009315 | 1990-03-29 | Active | — |
| WESTERN PETROLEUM COMPANY | — | FB003211 | 1969-02-10 | Revoked | PLYMOUTH |
| WESTERN PETROLEUM, INC. DBA PETROWEST DISTRIBUTING, INC. | — | FB033458 | 2009-05-07 | Inactive | VERNAL |
| Western Pharmacy Solutions LLC | — | FL326973 | 2026-04-24 | Active | Scottsdale |
| WESTERN PIEDMONT QUILTING, INC. | — | DB039867 | 1998-04-03 | Active | Piedmont |
| Western Plains Agronomy LLC | — | DL267784 | 2024-02-03 | Dissolved | BOX ELDER |
| WESTERN PLAINS ANESTHESIA, P.C. | — | DB041882 | 1999-09-27 | Active | RAPID CITY |
| Western Plains Co LLC | — | DL333253 | 2026-07-09 | Active | QUINN |
| Western Plains Construction LLC | — | DL044276 | 2015-07-07 | Dissolved | PIERRE |
| WESTERN PLAINS CONSULTING, INC. | — | FB031987 | 2007-09-14 | Revoked | BISMARCK |
| WESTERN PLAINS DEVELOPMENT CENTER, INC. | — | NS008094 | 1985-05-01 | Inactive | — |
| WESTERN PLAINS HEALTH CONSORTIUM | — | NS009758 | 1992-12-04 | Dissolved | — |
| WESTERN PLAINS INVESTMENTS, INC. | — | DB019050 | 1979-09-18 | Inactive | — |
| Western Plains Logistics, LLC | — | DL141059 | 2017-12-14 | Dissolved | Spearfish |
| WESTERN PLAINS SEEDS, INC. | — | DB054015 | 2008-11-03 | Dissolved | Bridgewater |
| WESTERN PLAINS SERVICE CORPORATION | — | DB012425 | 1974-07-24 | Inactive | — |
| WESTERN PLAINS, INC. | — | DB044699 | 2001-11-07 | Inactive | — |
| WESTERN PLAINS, INC. | — | DB011320 | 1972-10-13 | Inactive | — |
| WESTERN PLAINS, LLC | — | DL012679 | 2006-12-13 | Dissolved | LAS VEGAS |
| Western Plumbing Solutions, LLC | — | DL281958 | 2024-08-28 | Active | Rapid City |
| WESTERN POST AND BEAM, LTD. | — | DB024479 | 1985-06-11 | Inactive | — |
| WESTERN POWER AND COMMUNICATIONS, INC. | — | FB012935 | 1989-08-28 | Inactive | BELFIELD |
| WESTERN POWER SERVICE AND CONSTRUCTION CO., INC. | — | FB005877 | 1977-05-19 | Revoked | ALBURQUERQUE |
| WESTERN PRAIRIE HERITAGE CDE FUND, LLC | — | DL017674 | 2008-11-06 | Inactive | SIOUX FALLS |
| WESTERN PREFERRED SERVICE CONTRACT CORPORATION | — | FB009549 | 1984-05-08 | Revoked | FORT WORTH |
| WESTERN PRINTING COMPANY | Manufacturing | DB006296 | 1955-02-05 | Inactive | ABERDEEN |
| WESTERN PRINTING COMPANY, LLC | — | FL243115 | 2023-01-26 | Active | Sioux Falls |
| WESTERN PRODUCTS, INC. | — | FB019145 | 1996-07-18 | Active | Fargo |
| WESTERN PROFESSIONAL ASSOCIATES, INC. | — | FN010454 | 1995-01-12 | Inactive | LAWRENCE |
| WESTERN PROPERTIES, INC. | — | DB015101 | 1978-03-09 | Dissolved | HURON |
| WESTERN PROPERTIES, LLC | — | DL154464 | 2018-09-27 | Active | SIOUX FALLS |
| western property management LLC | — | DL188068 | 2020-09-22 | Dissolved | box elder |
| WESTERN PROTECTION, INC. | — | FB015098 | 1992-02-25 | Revoked | FARGO |
| WESTERN PROVIDERS PHYSICIAN ORGANIZATION, INC. | — | NS010736 | 1997-03-05 | Dissolved | RAPID CITY |
| WESTERN PROVIDERS, INC. | — | NS010786 | 1997-05-22 | Dissolved | RAPID CITY |
| WESTERN PROVISIONS, INC. | — | DB023413 | 1984-05-03 | Active | SIOUX FALLS |
| WESTERN PUMP & EQUIPMENT CO. | — | DB026972 | 1987-12-22 | Active | WESSINGTON |
| Western Ranch Brokers LLC | — | FL310413 | 2025-09-30 | Active | Bozeman |
| WESTERN RANCH OUTFITTERS, INC. | — | DB023122 | 1984-01-31 | Dissolved | — |
| WESTERN RANCH OUTFITTERS, LLC | — | DL033116 | 2013-07-15 | Inactive | UVALDE |
| WESTERN RANCH PROPERTIES, LLC | — | FL001879 | 2004-02-13 | Inactive | DILLON |
| WESTERN RANCHER BOOT AND SADDLE SHOP, INC. | — | DB012066 | 1973-12-31 | Active | MOBRIDGE |
| Western Rancher LLC | — | DL311774 | 2025-10-18 | Active | Mobridge |
| WESTERN RANCHES, LLC | — | DL017600 | 2008-10-27 | Inactive | BISON |
| Western Range Association | — | FN298216 | 2025-04-17 | Active | Twin Falls |
| WESTERN RANGE SERVICE D/B/A WESTERN RANGE SERVICE, INC. | — | FB023732 | 2000-04-03 | Inactive | ELKO |
| WESTERN REAL ESTATE INVESTMENT TRUST, INC. | — | FB026908 | 2002-12-31 | Inactive | SANTA ANA |
| WESTERN REAL ESTATE, INC. | — | DB015411 | 1978-06-26 | Dissolved | CUSTER |
| WESTERN REALTY CO., INC. | — | DB010772 | 1971-04-26 | Inactive | — |
| WESTERN RED CEDAR, INC. | — | DB021362 | 1982-03-10 | Inactive | — |
| WESTERN REFRACTORY CONSTRUCTION, INC. | — | FB016223 | 1993-07-26 | Revoked | LONGMONT |
| WESTERN REFRACTORY CONSTRUCTION, INCORPORATED | — | FB303762 | 2025-07-02 | Active | Mead |
| WESTERN RENTAL PROPERTIES, LLC | — | DL012890 | 2007-01-05 | Dissolved | Sioux Falls |
| WESTERN RESCOM PROPERTIES, LLC | — | DL275028 | 2024-05-15 | Active | RAPID CITY |
| Western Reserve Homestead LLC | — | DL282847 | 2024-09-11 | Active | BROOKLYN HIGHTS |
| Western Reserve, LLC | — | DL050420 | 2016-10-24 | Active | ABERDEEN |
| WESTERN RESIDENTIAL MORTGAGE, INC. | — | FB030780 | 2006-07-10 | Revoked | PHOENIX |
| WESTERN RESOURCE REPORT, LLC | — | DL170322 | 2019-09-17 | Dissolved | SIOUX FALLS |
| Western Resources for Independent Living | — | NS008987 | 1989-06-23 | Active | RAPID CITY |
| WESTERN RESOURCES LIMITED PARTNERSHIP | — | DP000127 | 1989-08-07 | Inactive | — |
| WESTERN SALES ASSOCIATES, INC. | — | DB041746 | 1999-08-12 | Inactive | — |
| WESTERN SALES, INCORPORATED | — | DB014772 | 1977-10-27 | Inactive | — |
| WESTERN SATELLITE, INC. | — | FB006905 | 1980-01-02 | Inactive | DENVER |
| Western Scan, LLC | — | DL023680 | 2011-02-02 | Dissolved | NISLAND |
| Western SD High Plains Anglers | — | NS177469 | 2020-02-18 | Active | SPEARFISH |
| Western SD Properties, LLC | — | DL042356 | 2015-02-17 | Dissolved | SHERMAN |
| WESTERN SECURITIES LTD. | — | DB021987 | 1982-12-15 | Dissolved | — |
| WESTERN SECURITY AND SURVEILLANCE, INC. | — | FB017705 | 1995-03-10 | Revoked | PHOENIX |
| WESTERN SERVICE CONTRACT CORP. | — | FB029875 | 2005-08-12 | Active | Anaheim |
| WESTERN SERVICES HEALTH MAINTENANCE ORGANIZATION, INC. | — | NS010939 | 1997-12-22 | Dissolved | RAPID CITY |
| WESTERN SERVICES, L.L.C. | — | DL036323 | 2013-12-16 | Dissolved | RAPID CITY |
| WESTERN SIERRA CONTRACTORS, INC. | — | FB023309 | 1999-12-09 | Revoked | SONORA |
| WESTERN SIOUX FALLS OPERATING ASSOCIATES, LIMITED PARTNERSHIP | — | FP000480 | 2002-09-23 | Active | SANTE FE |
| WESTERN SKIES FINANCIAL LLC | — | FL002948 | 2006-05-30 | Inactive | GRASSY BUTTE |
| Western Skies Insurance Company, Inc. | — | DB165151 | 2019-05-24 | Active | PIERRE |
| Western Skies Real Estate, LLP | — | DR205586 | 2021-07-01 | Active | CUSTER |
| Western Skies, LLC | — | DL042268 | 2015-02-25 | Dissolved | SPEARFISH |
| Western Sky Aviation, LLC | — | DL041961 | 2015-01-16 | Active | Rapid City |
| Western Sky Contracting LLC | — | DL307381 | 2025-08-21 | Active | Sturgis |
| WESTERN SKY FINANCIAL, L.L.C. | — | DL018925 | 2009-05-15 | Dissolved | TIMBER LAKE |
| Western Sky Investments, LLC | — | DL272128 | 2024-04-03 | Dissolved | Rapid City |
| WESTERN SKY MEDIA, INC. | — | DB050410 | 2005-12-16 | Dissolved | Spearfish |
| Western Sky Vacation Homes LLC | — | DL215292 | 2021-11-29 | Active | HILL CITY |
| Western Sky Wellness, PLLC | — | DL330147 | 2026-06-01 | Active | Sioux Falls |
| Western Skyways Aircraft Modifications, Inc. | — | FB200862 | 2021-04-14 | Active | MONTROSE |
| Western Sleep Medicine LLC | — | FL273347 | 2024-04-29 | Active | GERING |
| Western Slope Guide Service,LLC | — | DL231566 | 2022-07-28 | Active | Nisland |
| WESTERN SOILS, INC. | — | DB000252 | 1957-12-23 | Dissolved | — |
| WESTERN SOUTH DAKOTA BROADCASTING, LLC | — | DL001826 | 1998-08-25 | Dissolved | RAPID CITY |
| WESTERN SOUTH DAKOTA BUCK-A-ROOS SCHOLARSHIP FUND, INC. | — | NS012497 | 2004-02-12 | Inactive | — |
| WESTERN SOUTH DAKOTA BUCK-A-ROOS, INC. | — | NS004625 | 1969-05-26 | Active | Belle Fourche |
| WESTERN SOUTH DAKOTA CATHOLIC FOUNDATION | — | NS009774 | 1992-12-30 | Active | Rapid City |
| WESTERN SOUTH DAKOTA CENTENNIAL WAGON TRAIN, INC. | — | NS008768 | 1988-06-28 | Inactive | — |
| WESTERN SOUTH DAKOTA CHAPTER ACF INC. | — | NS010523 | 1996-03-19 | Dissolved | — |
| WESTERN SOUTH DAKOTA CHILD PROTECTION COUNCIL | — | NS007632 | 1983-08-17 | Dissolved | RAPID CITY |
| WESTERN SOUTH DAKOTA COMMUNITY ACTION, INC. | — | NS000824 | 1965-05-20 | Active | RAPID CITY |
| WESTERN SOUTH DAKOTA DEVELOPMENT CO. | — | NS000862 | 1965-08-18 | Dissolved | — |
| WESTERN SOUTH DAKOTA FAMILY AND CHILD DEVELOPMENT PROGRAM | — | NS007812 | 1984-04-02 | Inactive | — |
| WESTERN SOUTH DAKOTA FUR HARVESTERS, INC. | — | NS008356 | 1986-08-13 | Dissolved | HOT SPRINGS |
| WESTERN SOUTH DAKOTA HOMELESS COALITION | — | NS009173 | 1990-05-22 | Inactive | — |
| Western South Dakota Journalism Foundation | — | NS314477 | 2025-11-25 | Active | Spearfish |
| WESTERN SOUTH DAKOTA JUVENILE SERVICES CENTER COMPACT | — | NS010079 | 1994-04-15 | Active | RAPID CITY |
| Western South Dakota Safety Group | — | NS233414 | 2022-08-26 | Active | Spearfish |
| WESTERN SOUTH DAKOTA SENIOR SERVICES, INC. | — | NS007133 | 1981-03-30 | Active | Rapid City |
| WESTERN SOUTH DAKOTA SOCCER REFEREES ASSOCIATION | — | NS010239 | 1995-01-04 | Active | RAPID CITY |
| WESTERN SOUTH DAKOTA TRAFFIC BUREAU | — | NS001702 | 1947-04-03 | Inactive | — |
| WESTERN SOUTH DAKOTA TRANSPORTATION AUTHORITY | — | NS006571 | 1978-09-05 | Inactive | — |
| WESTERN SOUVENIRS, INC. | — | DB024067 | 1985-01-03 | Dissolved | RAPID CITY |
| Western Specialty Insurors, LLC | — | FL164000 | 2019-05-01 | Active | Raymore |
| Western Spirit, LLC | — | DL040115 | 2014-08-27 | Dissolved | CLEAR LAKE |
| WESTERN SPIRITS BEVERAGE COMPANY, LLC | — | FL004665 | 2009-07-21 | Active | BOWLING GREEN |
| WESTERN STAR FINANCE INC. | — | FB034358 | 2010-05-20 | Inactive | LIVINGSTON |
| WESTERN STAR FINANCE, INC. | — | FB019416 | 1996-10-11 | Revoked | LIVINGSTON |
| WESTERN STAR INC. | — | FB009109 | 1983-08-25 | Revoked | BELLEVUE |
| WESTERN STAR INSURANCE SERVICES, INC. | — | FB004014 | 1972-04-03 | Active | Woodland Hills |
| WESTERN STAR INSURANCE SERVICES, INC. | — | FB020433 | 1997-08-21 | Inactive | LIVINGSTON |
| WESTERN STAR OF COLORADO, INC. | — | DB041637 | 1999-07-08 | Dissolved | — |
| WESTERN STAR TRUCK SALES, INC. | — | FB031887 | 2007-08-03 | Inactive | PORTLAND |
| WESTERN STAR TRUCKS SALES, INC. | — | FB018346 | 1995-10-19 | Revoked | PORTLAND |
| WESTERN STAR, INC. | — | DB031563 | 1992-03-23 | Dissolved | BELLE FOURCHE |
| WESTERN STATES ABATEMENT, INC. | — | FB022987 | 1999-09-27 | Inactive | MISSOULA |
| WESTERN STATES ADMINISTRATORS, INC. | — | FB011267 | 1987-01-12 | Revoked | FRESNO |
| Western States Asphalt, LLC | — | FL043564 | 2015-06-01 | Revoked | SPOKANE |
| WESTERN STATES ASPHALT, LLC | — | FL153255 | 2018-08-30 | Revoked | Spokane |
| WESTERN STATES BOND AGENCY, INC. | — | FB013324 | 1990-01-15 | Revoked | DENVER |
| WESTERN STATES BUILDINGS AND RANCH SUPPLIES, LLC | — | DL021950 | 2010-07-14 | Dissolved | PIEDMONT |
| WESTERN STATES CONSTRUCTION COMPANY, INC. | — | FB010756 | 1986-03-11 | Revoked | LOVELAND |
| WESTERN STATES DRILLING AND BLASTING, INC. | — | FB029306 | 2005-01-24 | Revoked | HENDERSON |
| WESTERN STATES ENERGY, INC. | — | FB005768 | 1977-02-11 | Inactive | LEHI |
| WESTERN STATES EXTERIORS, INC. | — | FB020063 | 1997-05-07 | Revoked | LAKEWOOD |
| WESTERN STATES FIRE PROTECTION COMPANY | — | FB016410 | 1993-10-07 | Inactive | Centennial |
| WESTERN STATES INSURANCE AGENCY, INC. | — | FB018294 | 1995-10-05 | Inactive | MISSOULA |
| WESTERN STATES LAND AND CATTLE COMPANY | — | DB010100 | 1970-05-12 | Inactive | — |
| WESTERN STATES LEARNING CORPORATION | — | FN011174 | 2010-02-19 | Revoked | CHEYENNE |
| WESTERN STATES WHOLESALE, INC. | — | DB001137 | 1960-07-23 | Dissolved | — |
| WESTERN STATIONERS | — | DB006270 | 1945-10-04 | Active | Rapid City |
| WESTERN STONE & METAL CORP. | — | FB152446 | 2018-08-13 | Active | Greenwood Village |
| WESTERN SUMMIT CONSTRUCTORS, INC. | — | FB015920 | 1993-03-18 | Active | OMAHA |
| WESTERN SURETY COMPANY | — | IN000092 | 1900-07-17 | Active | SIOUX FALLS |
| WESTERN SURETY REAL ESTATE, INC. | — | DB020258 | 1980-12-22 | Inactive | — |
| WESTERN TANK & TOWER, INC. | — | DB024347 | 1985-04-11 | Inactive | — |
| WESTERN TELE-COMMUNICATIONS, INC./RETAIL SALES GROUP | — | FB019479 | 1996-10-30 | Revoked | ENGLEWOOD |
| WESTERN TELEPHONE COMPANY | — | DB037328 | 1996-06-07 | Dissolved | HIGHMORE |
| WESTERN TELEPHONE COMPANY | — | PU002245 | 1961-05-02 | Inactive | — |
| WESTERN TELEPHONE COMPANY OF PLANKINTON | — | PU000568 | 1957-10-14 | Inactive | — |
| WESTERN TELEPHONE EXCHANGE | — | PU008269 | 1952-06-19 | Inactive | — |
| WESTERN TEMPORARY SERVICES, INC. | — | FB002211 | 1964-03-23 | Inactive | WALNUT CREEK |
| WESTERN TERMINAL TRANSPORTATION, LLC | — | FL001142 | 2001-12-21 | Inactive | SCOTTSBLUFF |
| WESTERN THERMAL PRODUCTS, INC. | — | DB019494 | 1980-02-19 | Inactive | — |
| WESTERN THRIFTY INN, LLC | — | DL021880 | 2010-07-06 | Active | RAPID CITY |
| WESTERN TIMBER CO. | — | FB013004 | 1989-09-12 | Revoked | PORTLAND |
| Western Tire Chain LLC | — | DL250053 | 2023-05-03 | Active | Custer |
| WESTERN TRAILS CORPORATION | — | DB033192 | 1993-06-30 | Inactive | — |
| WESTERN TRANSPORTATION, INC. | — | DB011276 | 1972-09-19 | Dissolved | STURGIS |
| WESTERN TREE SERVICE LLC | — | DL026431 | 2011-12-06 | Dissolved | RAPID CITY |
| WESTERN TRICON, INC. | — | FB019319 | 1996-09-18 | Revoked | LA PUSH |
| WESTERN TRUCK & AUTO SALES, INC. | — | DB025207 | 1986-03-12 | Inactive | — |
| WESTERN TRUCK & TRAILER, LLC | — | DL027006 | 2012-01-25 | Active | SIOUX FALLS |
| WESTERN TRUCK AND EQUIPMENT LLC | — | DL024225 | 2011-03-29 | Active | PIEDMONT |
| WESTERN TRUST CORPORATION | — | DB028748 | 1989-09-29 | Dissolved | — |
| WESTERN UNION COMMUNICATIONS, INC. | — | FB017554 | 1994-12-30 | Inactive | GREENWOOD VILLAGE |
| WESTERN UNION DATA SERVICES COMPANY, INC. | — | FB003888 | 1971-10-12 | Inactive | PARAMUS |
| WESTERN UNION FINANCIAL SERVICES, INC. | — | FB013054 | 1989-09-28 | Inactive | ENGLEWOOD |
| WESTERN UNION FINANCIAL SERVICES, INC. | — | FB023215 | 1999-11-19 | Active | Denver |
| WESTERN UNION INTERNATIONAL SERVICES, LLC | — | FL042737 | 2014-06-03 | Active | Denver |
| WESTERN UNIVERSITY OF AMERICA, L.L.C. | — | DL004916 | 2002-07-16 | Inactive | — |
| WESTERN VALLEY ENTERPRISES INC. | — | DB053687 | 2008-06-10 | Inactive | — |
| Western Valley Holdings LLC | — | DL297504 | 2025-04-08 | Active | Chicgo |
| WESTERN VALLEY LIMITED PARTNERSHIP | — | DP000435 | 1994-10-25 | Inactive | — |
| Western Valley Opportunities, LLC | — | DL331905 | 2026-06-24 | Active | Cheyenne |
| Western Veterinary Services, PC | — | DB221862 | 2022-03-02 | Active | Dell Rapids |
| Western View Painting LLC | — | FL222244 | 2022-03-08 | Revoked | Watertown |
| Western View Painting LLC | — | DL221766 | 2022-03-01 | Inactive | Watertown |
| Western Village Solutions LLC | — | DL249120 | 2023-04-20 | Active | Rapid City |
| WESTERN VITAMINS & HEALTH PRODUCTS, INC. | — | DB024303 | 1985-03-27 | Dissolved | — |
| WESTERN WALLEYES, LLC | — | DL162315 | 2019-03-27 | Active | Mobridge |