| IRA E CLARK DETECTIVE AGENCY INC | FB038154 | 2014-10-02 | Inactive | EVANSVILLE |
| IRA Financial Group LLC | FL213342 | 2021-10-29 | Active | Miami Beach |
| IRA FINANCIAL TRUST COMPANY | DB060438 | 2015-11-02 | Active | SIOUX FALLS |
| IRADAN CORPORATION | DB047571 | 2003-11-26 | Inactive | — |
| Iranians Against Terrorism | NS240123 | 2022-12-11 | Dissolved | Watertown |
| iRank LLC | DL210283 | 2021-09-16 | Active | Watertown |
| IRAR TRUST COMPANY | DB152286 | 2018-08-07 | Active | SIOUX FALLS |
| IRATA, INC. | FB018744 | 1996-03-12 | Revoked | HOUSTON |
| IRAZAR LLC | DL218771 | 2022-01-18 | Active | SIOUX FALLS |
| IRBG HOLDINGS, LLC | DL018872 | 2009-05-07 | Active | HURON |
| IRBIS USA Inc. | DB131780 | 2017-03-23 | Dissolved | Excelsior |
| IRBY CONSTRUCTION COMPANY | FB001823 | 1962-02-19 | Inactive | JACKSON |
| IRBY CONSTRUCTION COMPANY | FB022224 | 1999-01-28 | Active | Richland |
| IRC & ASSOCIATES, INC. | DB036367 | 1995-10-27 | Inactive | — |
| IRC STUDIOS LLC | DL318561 | 2026-01-20 | Active | Sioux Falls |
| IRC's Center for Economic Opportunity, Inc. | FN304986 | 2025-07-18 | Active | New York |
| IRC, INC. | FB030949 | 2006-09-13 | Active | PEABODY |
| IRD LLC | DL271311 | 2024-03-22 | Active | Sioux Falls |
| IRECOR, INC. | DB039767 | 1998-03-11 | Inactive | — |
| iRecover US, Inc. | DB225450 | 2022-04-21 | Active | Howard |
| iRecovery, LLC | FL212178 | 2021-10-13 | Revoked | Boca Raton |
| IREDALE COSMETICS, INC. | FB035852 | 2012-03-26 | Active | Great Barrington |
| Ireland Angus Ranch LLC | DL279209 | 2024-07-19 | Active | Kadoka |
| IRELAND BROS., L.L.C. | DL001144 | 1997-02-24 | Dissolved | — |
| IRELAND CATTLE CO., INC. | DF000086 | 1993-11-15 | Dissolved | Scotland |
| IRELAND COMMUNICATION AND TRAINING SERVICES, LLC | DL024645 | 2011-05-11 | Inactive | RAPID CITY |
| Ireland Consulting LLC | DL211725 | 2021-10-06 | Inactive | Hermosa |
| Ireland Enchantment, llc | DL217575 | 2022-01-01 | Inactive | Spearfish |
| IRELAND INTEGRATIVE HEALTH CARE, L.L.C. | DL000998 | 1996-10-16 | Inactive | — |
| IRELAND INVESTMENTS, LLC | DL043981 | 2015-06-16 | Active | Murrieta |
| IRELAND LAND CORP. | DF013273 | 1975-12-23 | Active | MARTIN |
| Ireland Productions LLC | DL307191 | 2025-08-17 | Active | Sioux Falls |
| IRELAND PROPERTIES, LLC | DL030467 | 2012-12-17 | Active | MARTIN |
| IRELAND'S LUMBER YARD OF SOUTH DAKOTA | DF002727 | 1919-03-13 | Inactive | — |
| IRemedy Investor Group Four Plus, LLC | DL224232 | 2022-04-05 | Active | Souix Falls |
| Iremedy Investor Group VI, LLC | DL236874 | 2022-10-17 | Active | Sioux Falls |
| IRENE AREA JUNIOR CHAMBER OF COMMERCE DBA IRENE AREA JAYCEES | NS006188 | 1977-03-02 | Dissolved | — |
| IRENE AUTO, INCORPORATED | DB038615 | 1997-05-23 | Inactive | — |
| IRENE B. SNYDER FARMS FAMILY LIMITED PARTNERSHIP | FP000248 | 1994-12-22 | Active | POCATELLO |
| IRENE BANCORPORATION, INC. | DB019701 | 1980-05-09 | Inactive | — |
| IRENE COMMUNITY AMBULANCE ASSOCIATION, INC. | NS005975 | 1976-03-31 | Inactive | — |
| IRENE COMMUNITY CENTER, INC. | NS009250 | 1990-10-01 | Active | Irene |
| IRENE COMMUNITY DEVELOPMENT CORPORATION | NS004967 | 1971-07-16 | Active | Irene |
| IRENE COMMUNITY SERVICE GROUPS, INC. | NS010106 | 1994-06-09 | Active | Yankton |
| IRENE FIRE DISTRICT | NS013478 | 2007-07-23 | Active | IRENE |
| Irene First Responders | NS260199 | 2023-10-05 | Active | Irene sd |
| IRENE GROCERY, L.L.C. | DL001713 | 1998-06-12 | Inactive | — |
| IRENE HILLCREST CEMETERY ASSOCIATION | NS002525 | 1921-08-22 | Active | IRENE |
| IRENE SENIOR CITIZENS CENTER, INC. | NS005434 | 1973-10-17 | Inactive | — |
| IRENE STANDARD SERVICE, INC. | DB038772 | 1997-06-30 | Inactive | — |
| Irene Summers Temple, PhD LLC | DL135537 | 2017-07-31 | Active | Rapid City |
| Irene's Dream | NS266041 | 2024-01-09 | Dissolved | Colome |
| IRENE, SD | CI000067 | 1901-03-05 | Active | — |
| IRENE-WAKONDA ELEMENTARY SCHOOL PARENT TEACHER ORGANIZATION | NS014175 | 2009-11-16 | Dissolved | VERMILLION |
| Irenic Counseling L.L.C | DL225361 | 2022-04-20 | Active | Sioux Falls |
| Irenix Corporation | DB315837 | 2025-12-16 | Active | Parker |
| IRESOLVE, LLC | DL040976 | 2014-11-03 | Inactive | NORMAN |
| IRET - COTTAGE GABLES, LLC | FL005880 | 2011-09-16 | Inactive | MINOT |
| IRET - HOMESTEAD GARDENS I, LLC | FL042446 | 2014-02-10 | Inactive | MINOT |
| IRET - HOMESTEAD GARDENS II, LLC | FL042448 | 2014-02-10 | Inactive | MINOT |
| IRET - SILVER SPRING, LLC | FL042445 | 2014-02-10 | Inactive | Minot |
| IRET, INC. | FB021614 | 1998-07-31 | Inactive | MINOT |
| IRET-CANYON LAKE, LLC | FL005905 | 2011-10-03 | Active | MINOT |
| IRET-OAKMONT, LLC | DL004625 | 2002-04-05 | Inactive | MINOT |
| IREVIK, INCORPORATED | DB022565 | 1983-07-07 | Dissolved | — |
| IREX CORNERSTONE SERVICES LLC | FL174285 | 2019-12-12 | Active | LANCASTER |
| IRI ISG, INC. | FB035084 | 2011-04-12 | Inactive | CHICAGO |
| IRI SECURITIES CORPORATION | FB007899 | 1981-08-28 | Inactive | MINNEAPOLIS |
| IRIDIUM 192, LLC | DL009572 | 2005-07-22 | Inactive | — |
| Iridium Portfolio Holdings, LLC | DL282014 | 2024-08-29 | Active | Pierre |
| Irie Artistry, LLC | DL287692 | 2025-01-01 | Dissolved | Huron |
| Irie Joy Co. LTD. | DL285477 | 2024-10-24 | Dissolved | Sioux Falls |
| IRIE LLC | DL037170 | 2014-01-24 | Dissolved | BRANDON |
| IRIE VENTURES, L.L.C. | DL012040 | 2006-09-01 | Dissolved | DELL RAPIDS |
| Irina Bellus Mobile Home Park LLC | DL295456 | 2025-03-13 | Active | Odenton |
| Irina Bellus Properties, LLC | DL313149 | 2025-11-07 | Active | Odenton |
| Irineo Services Inc. | DB216784 | 2021-12-20 | Active | New York |
| Iris Aesthetics PLLC | DL217592 | 2022-01-02 | Dissolved | Rapid City |
| Iris Infinite Fund LLC | DL287582 | 2024-11-21 | Active | Watertown |
| Iris Ink & Needle LLC | DL244764 | 2023-02-19 | Active | Spearfish |
| Iris Investment Holdings LLC | DL314512 | 2025-11-25 | Active | SIOUX FALLS |
| Iris Metals, Inc. | DB246367 | 2023-03-13 | Active | Custer |
| Iris Pond LLC | DL273748 | 2024-04-26 | Dissolved | Watertown |
| IRIS USA, INC. | FB021660 | 1998-08-13 | Revoked | Surprise |
| Irish Brethern LLC | DL284028 | 2024-09-28 | Active | Beresford |
| IRISH CREEK GRAZING ASSOCIATION, INC. | NS001135 | 1967-03-20 | Active | ISABEL |
| Irish Eyes, LLC | DL184743 | 2020-07-20 | Active | Canton |
| Irish Gulch LLC | DL153893 | 2018-09-14 | Dissolved | Hill City |
| Irish Hills LLC. | DL196217 | 2021-02-06 | Active | Montrose |
| Irish Holdings LLC | DL230832 | 2022-07-19 | Dissolved | Summerset |
| Irish Lion Inc. | DB216025 | 2022-01-03 | Dissolved | Los Angeles |
| Irish Ten 24, LLC | DL269769 | 2024-03-02 | Dissolved | Sioux Falls |
| Irish Twins LLC | DL162197 | 2019-03-25 | Active | Beresford |
| IRISH, LLC | DL023211 | 2010-12-17 | Active | SIOUX FALLS |
| Irishman Ranch, LLC | DL299576 | 2025-05-06 | Active | PARKER |
| IRL HICKS, INC. | DB032224 | 1992-10-14 | Dissolved | BRITTON |
| IRL Holdings, LLC | DL289534 | 2025-01-01 | Active | Rapid City |
| Irlbeck Family, LLC | DL303589 | 2025-06-30 | Active | Sioux Falls |
| Irlbeck Investments, LLC | DL304593 | 2025-07-14 | Active | Sioux Falls |
| IrmaLea Fields LLC | DL214604 | 2021-11-16 | Inactive | Woonsocket |
| Iromet Group, LLC | DL155923 | 2018-11-02 | Active | Sioux Falls |
| Iromet Management LLC | DL251200 | 2023-05-19 | Active | SIOUX FALLS |
| Iron Ag Services, LLC | DL294945 | 2025-03-07 | Active | Miller |
| IRON AGE CORPORATION | FB030836 | 2006-08-01 | Revoked | WILMINGTON |
| IRON AGE CORPORATION | FB016415 | 1993-10-08 | Revoked | PITTSBURGH |
| Iron and Ivy Ventures Corporation | DB293653 | 2025-02-19 | Dissolved | Indian Lake |
| Iron Antler Enterprises LLC | DL326523 | 2026-04-20 | Active | Webster |
| Iron Arrow LLC | DL305445 | 2025-07-24 | Active | Brookings |
| IRON BARK ENTERPRISES, LLC | DL024126 | 2011-03-18 | Dissolved | — |
| Iron Bird, LLC | DL242557 | 2023-01-18 | Dissolved | Rapid City |
| Iron Bison Welding LLC | DL333791 | 2026-07-16 | Active | Spearfish |
| Iron Bridge Holdings, LLC | DL232143 | 2022-08-05 | Dissolved | Watertown |
| IRON CHURCH, LLC | DL043845 | 2015-06-01 | Inactive | RAPID CITY |
| IRON CLAD EXTERIORS, INC. | DB053116 | 2007-12-31 | Dissolved | RAPID CITY |
| Iron Clad Protection, Inc | DB060848 | 2016-04-29 | Dissolved | Sioux Falls |
| Iron Clad Roofing, L.L.C. | DL039093 | 2014-06-06 | Dissolved | RAPID CITY |
| Iron Clad Seamless Gutter Systems Inc. | DB058486 | 2013-12-26 | Dissolved | RAPID CITY |
| Iron Core LLC | DL240200 | 2022-12-12 | Dissolved | Sioux Falls |
| Iron Creek Fabrication and Repair LLC | DL315939 | 2025-12-17 | Active | Spearfish |
| IRON CREEK HOLDINGS, L.L.C. | DL017008 | 2008-07-23 | Dissolved | PHOENIX |
| IRON CREEK LAKE CAMPGROUND & STORE, L.L.C. | DL021475 | 2010-05-12 | Active | SPEARFISH |
| IRON CREEK LAKE, INC. | DB041656 | 1999-07-19 | Inactive | — |
| IRON CREEK LEATHER & GIFTS, LLC | DL013655 | 2007-04-13 | Active | KEYSTONE |
| IRON CREEK PLAZA APARTMENTS, LLC | DL046681 | 2016-01-13 | Dissolved | Sioux Falls |
| IRON CREEK PRODUCTIONS, LLC | DL007931 | 2004-09-20 | Active | RAPID CITY |
| Iron Creek Properties, LLC | DL200494 | 2021-04-08 | Active | Alamo |
| IRON CREEK RANCH, LLC | DL002364 | 1999-07-19 | Inactive | — |
| Iron Creek Recruiting LLC | DL284231 | 2024-10-02 | Dissolved | Sioux Falls |
| Iron Creek SD LLC | DL221091 | 2022-02-20 | Active | KEYSTONE |
| IRON CREEK, INCORPORATED | DB021548 | 1982-05-25 | Dissolved | — |
| IRON CREEK, L.L.C. | DL011634 | 2006-06-30 | Active | SPEARFISH |
| IRON CROSS LIMITED PARTNERSHIP | DP001266 | 2001-05-21 | Inactive | — |
| Iron Daisy Development LLC | DL309770 | 2025-09-22 | Active | Aberdeen |
| IRON DOG CREEK GUIDING SERVICE INC. | DB054042 | 2008-11-17 | Dissolved | BULLHEAD |
| IRON EYES LAW OFFICES, PROF. LLC | DL020259 | 2009-11-30 | Dissolved | FORT YATES |
| Iron Family Faith LLC | DL323611 | 2026-03-17 | Active | Sioux Falls |
| Iron Fidelity Insurance Services, LLC | FL043639 | 2015-07-20 | Revoked | MESQUITE |
| IRON GATE STORAGE CONDOMINIUMS, INC. | NS321041 | 2026-02-17 | Active | SIOUX FALLS |
| Iron Gate Storage LLC | DL311432 | 2025-10-14 | Active | Sioux Falls |
| Iron Gate, LLC | DL168136 | 2019-07-31 | Dissolved | Sioux Falls |
| Iron Grit Garage LLC | DL320190 | 2026-02-06 | Active | Sturgis |
| Iron Hills Construction LLC | DL320697 | 2026-02-13 | Active | Fort Collins |
| IRON HOG FARMS LLC | DL025477 | 2011-08-19 | Dissolved | ALPENA |
| IRON HORSE AG SERVICES, LLC | DL020311 | 2009-12-04 | Active | FAITH |
| Iron Horse Arms, LLC | DL330066 | 2026-05-31 | Active | Rapid City |
| IRON HORSE CAMPGROUND, LLC | DL031921 | 2013-04-04 | Active | TULARE |
| Iron Horse Country Cabin LLC | DL309962 | 2025-09-23 | Active | EAGLE BUTTE |
| IRON HORSE DEVELOPMENT COMPANY, LLC | DL028917 | 2012-07-24 | Dissolved | Sioux Falls , |
| Iron Horse Excavating Holding Co. | DB168239 | 2019-08-02 | Active | RAPID CITY |
| Iron Horse Excavating Leasing, LLC | DL168236 | 2019-08-02 | Active | RAPID CITY |
| Iron Horse Excavating Management Co. | DB168238 | 2019-08-02 | Active | RAPID CITY |
| Iron Horse Excavating Real Estate, LLC | DL168237 | 2019-08-02 | Active | RAPID CITY |
| IRON HORSE EXCAVATING, INC. | DB037986 | 1996-12-20 | Active | RAPID CITY |
| Iron Horse Holdings, LLC | FL132424 | 2017-04-11 | Revoked | Charlotte |
| Iron Horse Holdings, LLC | DL292698 | 2025-02-06 | Active | Reliance |
| IRON HORSE INN, INC. | DB035714 | 1995-04-17 | Inactive | — |
| IRON HORSE INN, L.L.C. | FL001290 | 2002-05-09 | Revoked | FARGO |
| IRON HORSE INVESTMENT LLC | DL281534 | 2024-08-22 | Active | SIOUX FALLS |
| Iron Horse Investments LLC | DL193210 | 2021-01-04 | Active | SIOUX FALLS |
| IRON HORSE MANUFACTURING INC. | DB025155 | 1986-02-26 | Inactive | — |
| IRON HORSE PROPERTIES, LLC | DL015787 | 2008-02-14 | Active | HILL CITY |
| Iron Horse Ranch Services, LLC | DL145703 | 2018-03-21 | Active | Sturgis |
| Iron Horse Sanatorium LLC | DL297861 | 2025-04-13 | Active | Custer |
| Iron Horse Security LLC | DL305286 | 2025-07-22 | Inactive | Sioux Falls |
| Iron Horse Security, LLC | FL333842 | 2026-07-16 | Active | Tulsa |
| Iron Horse Sports Management LLC | DL133689 | 2017-05-24 | Dissolved | Rapid City |
| Iron Horse Spraying LLC | DL047250 | 2016-02-24 | Active | Spearfish |
| IRON HORSE TRUCKING, LLC | DL010305 | 2005-12-12 | Inactive | — |
| Iron Horse Ventures, LLC | DL187352 | 2020-09-08 | Active | Spearfish |
| IRON HORSE WELDING LLC | DL281586 | 2024-08-22 | Active | WATERTOWN |
| IRON HORSE, L.L.C. | DL025021 | 2011-06-23 | Dissolved | HARTFORD |
| IRON IRREVOCABLE LLC | DL273992 | 2024-04-30 | Inactive | SIOUX FALLS |
| IRON KEY INSURANCE SERVICES, LLC | FL287024 | 2024-11-12 | Active | BIRMINGHAM |
| Iron Kingdom Wellness Center LLC | DL175115 | 2020-01-01 | Active | Wagner |
| Iron Lightning Community | NS322065 | 2026-02-27 | Active | Iron Lightning |
| IRON LIGHTNING, LTD. | DB021094 | 1981-11-06 | Inactive | — |
| Iron Maiden - Coming Home Cleaning Services, LLC | DL283901 | 2024-10-01 | Dissolved | Lead |
| Iron Major Industries, LLC | DL224078 | 2022-04-02 | Suspended | Rapid City |
| IRON MAN CONSTRUCTION CO., INC. | DB026824 | 1987-10-21 | Inactive | — |
| Iron Mike Construction LLC | FL269057 | 2024-02-22 | Active | CENTENNIAL |
| Iron Mountain Aviation, LLC | DL308164 | 2025-08-29 | Active | Lead |
| Iron Mountain Builders, L.L.C. | DL185506 | 2020-08-03 | Active | RAPID CITY |
| Iron Mountain Capital Partners LLC | DL313648 | 2025-11-14 | Active | Rapid City |
| Iron Mountain Cattle Co. LLC | DL294270 | 2025-02-27 | Inactive | Waynesboro |
| Iron Mountain Cattle Co. LLC | FL294885 | 2025-03-06 | Active | Waynesboro |
| Iron Mountain Climbing LLC | DL229023 | 2022-06-17 | Dissolved | Rapid City |
| Iron Mountain Electric LLC | DL048751 | 2016-06-06 | Active | Pringle |
| Iron Mountain Enterprises LLC | DL206302 | 2021-07-12 | Dissolved | Crazy Horse |
| Iron Mountain Financial Planning, LLC | DL138240 | 2017-10-10 | Active | Rapid City |
| IRON MOUNTAIN GOVERNMENT SERVICES INCORPORATED | FB030209 | 2005-12-15 | Inactive | BOSTON |
| Iron Mountain Hardscapes LLC | DL247797 | 2023-03-31 | Dissolved | Hermosa |
| Iron Mountain Hospitality LLC | DL214399 | 2021-11-12 | Dissolved | STURGIS |
| IRON MOUNTAIN INCORPORATED | FB038341 | 2015-01-28 | Active | Portsmouth |
| IRON MOUNTAIN INCORPORATED | FB036584 | 2013-02-27 | Inactive | BOSTON |
| IRON MOUNTAIN INFORMATION MANAGEMENT SERVICES, INC. | FB036802 | 2013-06-03 | Active | Royersford |
| IRON MOUNTAIN INFORMATION MANAGEMENT, INC. | FB027658 | 2003-08-28 | Revoked | BOSTON |
| IRON MOUNTAIN INFORMATION MANAGEMENT, INC. | FB031174 | 2006-11-29 | Inactive | BOSTON |
| IRON MOUNTAIN INFORMATION MANAGEMENT, LLC | FL006536 | 2012-10-18 | Active | Portsmouth |
| Iron Mountain Painting LLC | DL229826 | 2022-06-30 | Inactive | Belle Fourche |
| Iron Mountain Properties, LLC | DL332243 | 2026-06-28 | Active | Waynesville |