| BLACK HILLS INTERFAITH MARRIAGE ENCOUNTER, INC. | NS007650 | 1983-09-19 | Inactive | — |
| BLACK HILLS INTERIORS, LLC | DL008145 | 2004-11-03 | Inactive | RAPID CITY |
| BLACK HILLS INTERNATIONAL SURVIVAL GATHERING | NS006945 | 1980-06-02 | Inactive | — |
| Black Hills Internet Marketing LLC | DL043297 | 2015-04-17 | Dissolved | KYLE |
| BLACK HILLS INTERSTATE PROPERTY MANAGEMENT, LLC | DL138345 | 2017-10-12 | Inactive | Yankton |
| Black Hills Investing LLC | DL207979 | 2021-08-09 | Dissolved | Rapid City |
| BLACK HILLS INVESTMENTS, INC. | DB028565 | 1989-07-18 | Inactive | — |
| Black Hills Investments, LLC | DL189165 | 2020-10-10 | Active | Sturgis |
| BLACK HILLS IP, LLC | FL006643 | 2012-12-26 | Active | Minneapolis |
| BLACK HILLS IP, LLC | DL024552 | 2011-05-04 | Inactive | RAPID CITY |
| Black Hills Ironworks, LLC | DL224883 | 2022-04-13 | Dissolved | Box Elder |
| Black Hills IT Consulting llc | DL130382 | 2017-02-06 | Dissolved | Rapid City |
| Black Hills IT Services, LLC | DL142348 | 2018-01-09 | Active | Denver |
| Black Hills IV Hydration L.L.C. | DL239839 | 2022-12-06 | Dissolved | Rapid City |
| Black Hills IV, PLLC | DL248000 | 2023-04-04 | Active | Rapid City |
| BLACK HILLS JANITORIAL SUPPLY COMPANY | DB038458 | 1997-04-17 | Active | RAPID CITY |
| BLACK HILLS JEEP RENTALS, L.L.C. | DL032295 | 2013-05-02 | Inactive | CUSTER |
| BLACK HILLS JEEPS | NS012500 | 2004-02-13 | Active | Rapid City |
| BLACK HILLS JERKY DISTRIBUTION COMPANY, LLC | DL005553 | 2003-02-21 | Dissolved | SPEARFISH |
| BLACK HILLS JEWELRY MANUFACTURING COMPANY | DB014456 | 1977-06-23 | Active | BOZEMAN |
| Black Hills Joint Venture, LLC | DL049559 | 2016-08-11 | Dissolved | GARRETSON |
| BLACK HILLS JOURNEYS, INC. | DB054405 | 2009-03-30 | Dissolved | Custer |
| BLACK HILLS JUDO & JUJITSU, INCORPORATED | NS010290 | 1995-03-17 | Inactive | — |
| Black Hills Junior League | NS005063 | 1971-03-06 | Active | RAPID CITY |
| Black Hills Juniors Volleyball Club | NS190188 | 2020-10-26 | Active | RAPID CITY |
| Black Hills Junk & Demo Removal, LLC | DL256327 | 2023-08-08 | Inactive | Rapid City |
| Black Hills K9 LLC | DL207921 | 2021-08-07 | Active | Edgemont |
| Black Hills Kart Racing LLC | DL154833 | 2018-10-07 | Dissolved | BLACK HAWK |
| BLACK HILLS KIDS INC. | DB036372 | 1995-10-30 | Dissolved | — |
| BLACK HILLS KING OF CARS, LLC | DL014846 | 2007-10-11 | Dissolved | RAPID CITY |
| BLACK HILLS LACROSSE ASSOCIATION (BHLA) | NS014787 | 2012-03-06 | Active | RAPID CITY |
| BLACK HILLS LAKOTA PERFORMING ARTS GROUP, INC. | NS008352 | 1986-08-06 | Inactive | — |
| Black Hills Land & RV LLC | DL017395 | 2008-09-22 | Active | MITCHELL |
| BLACK HILLS LAND ANALYSIS, LLC | DL030781 | 2012-12-31 | Active | DEADWOOD |
| BLACK HILLS LAND COMPANY, LLC | DL026479 | 2011-12-09 | Active | RAPID CITY |
| Black Hills Land Stewards LLC | DL258282 | 2023-09-07 | Active | Whitewood |
| BLACK HILLS LAND TITLE, INC. | DB026421 | 1987-06-01 | Inactive | — |
| BLACK HILLS LANDFILL, INC. | FB039083 | 2016-01-25 | Inactive | THE WOODLANDS |
| BLACK HILLS LAUNDRY & DRY CLEANING, LLC | DL002650 | 1999-12-27 | Active | BELLE FOURCHE |
| BLACK HILLS LAWN CARE LLC | DL015647 | 2008-01-25 | Active | SPEARFISH |
| Black Hills Leadership Development | NS049954 | 2016-04-04 | Active | Rapid City |
| Black Hills Leather and Canvas LLC | DL299354 | 2025-05-02 | Active | Rapid City |
| Black hills legacy builders LLC | DL300575 | 2025-05-20 | Suspended | Summerset |
| BLACK HILLS LEGACY HOLDINGS LLC | DL177047 | 2020-02-07 | Inactive | SPEARFISH |
| Black Hills Legacy LLC | DL300739 | 2025-05-20 | Active | Spearfish |
| Black Hills Legal Ledger, LLC | DL193583 | 2020-12-26 | Dissolved | Rapid City |
| BLACK HILLS LEGAL PROCESS SERVERS, INC. | DB049694 | 2005-05-09 | Inactive | — |
| BLACK HILLS LEGAL SERVICES, INC. | NS005135 | 1972-07-05 | Inactive | — |
| Black Hills Library Consortium | NS049695 | 2015-06-24 | Active | RAPID CITY |
| Black Hills Lifestyle Coach, LLC | DL277428 | 2024-06-20 | Active | Rapid City |
| BLACK HILLS LIME AND RESEARCH COMPANY | DB006209 | 1919-08-04 | Active | CUSTER |
| BLACK HILLS LINE-X BEDLINERS & SPRAYCOATING, INC. | DB043225 | 2000-09-13 | Inactive | — |
| Black Hills Lithium L.L.C. | DL231327 | 2022-07-25 | Dissolved | Rapid City |
| BLACK HILLS LITTLE BRITCHES RODEO ASSOCIATION, INC. | NS005561 | 1974-05-14 | Inactive | — |
| BLACK HILLS LITTLE BRITCHES RODEO INC. | NS011043 | 1998-06-05 | Dissolved | HERMOSA |
| Black Hills Livestock Holdings LLC | DL283311 | 2024-09-18 | Active | Belle Fourche |
| Black Hills Livestock Services, LLC | DL317554 | 2026-01-08 | Active | Rapid City |
| BLACK HILLS LIVESTOCK TRAILER SALES, INC. | DB031397 | 1992-02-03 | Inactive | — |
| Black Hills Living LLC | DL187261 | 2020-09-04 | Dissolved | RAPID CITY |
| Black HIlls Local Food Alliance, LLC | DL131565 | 2017-03-15 | Dissolved | RAPID CITY |
| Black Hills Local LLC | DL231541 | 2022-07-28 | Dissolved | Rapid City |
| Black Hills Lodge/Arts and Crafts L.L.C | DL166971 | 2019-07-06 | Dissolved | Custer |
| Black Hills Lodging llc | FL175005 | 2019-12-27 | Active | Hot Springs |
| Black Hills Lodging Services, LLC | DL204231 | 2021-06-05 | Active | Spearfish |
| BLACK HILLS LOG HAULERS ASSOCIATION, INC. | NS012730 | 2005-01-20 | Dissolved | Spearfish |
| BLACK HILLS LOG, INC. | DB045403 | 2002-05-01 | Dissolved | SPEARFISH |
| Black Hills Logistics | DT043790 | 2014-08-20 | Active | BLACK HAWK |
| BLACK HILLS LOJ, INC. | DB012625 | 1974-12-06 | Dissolved | — |
| BLACK HILLS LONG RANGE RIFLE SHOOTING SCHOOL, INC. | DB057819 | 2013-05-28 | Dissolved | RAPID CITY |
| BLACK HILLS LUMBER, INC. | DB051577 | 2006-09-29 | Inactive | — |
| BLACK HILLS LUTHERAN SCHOOLS ASSOCIATION, INC. | NS012766 | 2005-02-28 | Dissolved | Rapid City |
| BLACK HILLS LUTHERANS FOR LIFE | NS008397 | 1986-10-15 | Inactive | — |
| Black Hills Luxury Homes, LLC | DL150534 | 2018-06-30 | Dissolved | spearfish |
| Black Hills Luxury Lodging LLC | DL251218 | 2023-05-19 | Active | Hartford |
| Black Hills Luxury Rentals LLC | DL310211 | 2025-09-26 | Active | Rapid City |
| Black Hills Luxury Transportation LLC | DL275146 | 2024-05-16 | Dissolved | Spearfish |
| BLACK HILLS MACHINE AND MANUFACTURING, L.L.C. | DL012178 | 2006-09-26 | Inactive | SPEARFISH |
| BLACK HILLS MACHINE, INC. | DB044024 | 2001-04-17 | Dissolved | RAPID CITY |
| BLACK HILLS MACHINERY, INC. | DB033273 | 1993-07-28 | Inactive | — |
| Black Hills Machining & Fabrication Inc. | DB210954 | 2021-09-24 | Dissolved | Edgemont |
| BLACK HILLS MACINTOSH USERS' GROUP (BHMUG) | NS009879 | 1993-06-15 | Dissolved | RAPID CITY |
| Black Hills Made LLC | DL317292 | 2026-01-06 | Active | Watertown |
| BLACK HILLS MAIL CARRIERS LLC | DL014038 | 2007-06-04 | Inactive | BLACK HAWK |
| Black Hills Maine Coons LLC | DL326761 | 2026-04-23 | Active | Spearfish |
| Black Hills Maintenance LLC | DL168837 | 2019-08-15 | Active | SPEARFISH |
| BLACK HILLS MALL.COM, L.L.C. | DL002846 | 2000-03-10 | Inactive | — |
| BLACK HILLS MANAGEMENT CONSULTANTS, INC. | DB021589 | 1982-06-14 | Inactive | — |
| Black Hills Management Group LLC | DL263376 | 2023-11-29 | Dissolved | Great Falls |
| BLACK HILLS MANAGEMENT, LLC | DL008840 | 2005-03-16 | Active | Spearfish |
| BLACK HILLS MANUFACTURING & CONSULTING, INC. | DB043301 | 2000-10-10 | Dissolved | PIEDMONT |
| BLACK HILLS MANUFACTURING AND EQUIPMENT, INC. | DB032289 | 1992-11-04 | Inactive | — |
| BLACK HILLS MANUFACTURING SERVICES, INC. | DB056993 | 2012-06-29 | Dissolved | BOX ELDER |
| BLACK HILLS MARATHON ASSOCIATION | NS006874 | 1980-02-08 | Inactive | — |
| BLACK HILLS MARBLE INCORPORATED | DB054922 | 2009-11-23 | Dissolved | RAPID CITY |
| BLACK HILLS MARINE, INC. | DB053364 | 2008-03-05 | Active | Summerset |
| Black Hills Market LLC | DL278734 | 2024-07-12 | Active | Custer |
| Black Hills Marketing LLC | DL235784 | 2022-09-29 | Active | Rapid City |
| BLACK HILLS MARKETING, INC. | DB055524 | 2010-08-03 | Dissolved | HOT SPRINGS |
| Black Hills Matter | NS228654 | 2022-06-09 | Dissolved | Lead |
| Black Hills Mattresses LLC | DL210297 | 2021-09-16 | Dissolved | Spearfish |
| Black Hills Mausoleums, LLC | DL174671 | 2019-12-19 | Inactive | Rapid City |
| Black Hills MBC, LLC. | DL158625 | 2019-01-09 | Active | Rapid City |
| Black Hills Meadow, LLC | DL230040 | 2022-07-05 | Active | Piedmont |
| BLACK HILLS MECHANICAL, LLC | DL005394 | 2002-12-30 | Inactive | — |
| BLACK HILLS MECHANICAL, LLC. | DL019673 | 2009-09-02 | Dissolved | WHITEWOOD |
| BLACK HILLS MEDIA LLC | DL161594 | 2019-03-12 | Dissolved | RAPID CITY |
| BLACK HILLS MEDIA, LLC | DL029436 | 2012-09-17 | Inactive | RAPID CITY |
| BLACK HILLS MEDICAL BILLING, LLC | DL032419 | 2013-05-13 | Inactive | RAPID CITY |
| BLACK HILLS MEDICAL CENTER, P.C. | DB020698 | 1981-06-04 | Dissolved | — |
| Black Hills Medical Device LLC | DL251114 | 2023-05-18 | Active | Watertown |
| Black Hills Medical Direction PLLC | DL232174 | 2022-08-06 | Active | Rapid City |
| Black Hills Medical Group, LLP | DR313639 | 2025-11-14 | Active | RAPID CITY |
| BLACK HILLS MEDICAL OFFICE BUILDING, LLC | DL002741 | 2000-01-20 | Inactive | RAPID CITY |
| BLACK HILLS MEDICAL RESOURCES MANAGEMENT, INC. | DB044237 | 2001-06-19 | Inactive | — |
| BLACK HILLS MEDICAL SOCIETY | NS014489 | 2010-12-17 | Active | RAPID CITY |
| Black Hills Medical Spa, Inc. | DB058777 | 2014-02-19 | Dissolved | RAPID CITY |
| BLACK HILLS MEETING PLANNERS, LLC | DL005249 | 2002-11-15 | Dissolved | — |
| BLACK HILLS MEMORIAL 7TH CAVALRY, COMPANY H | NS009363 | 1991-03-26 | Dissolved | custer |
| BLACK HILLS MEMORIES, INC. | DB030945 | 1991-09-12 | Inactive | — |
| Black Hills Mental Health PLLC | DL206230 | 2021-07-10 | Active | RAPID CITY |
| Black Hills Mercantile LLC | DL163874 | 2019-04-29 | Dissolved | Rapid City |
| Black Hills Merchants LLC | DL144894 | 2018-03-06 | Dissolved | Rapid City |
| Black Hills Metal and Stone LLC | DL184277 | 2020-07-09 | Dissolved | Hermosa |
| BLACK HILLS METAL BUYERS LLC | DL032587 | 2013-05-24 | Suspended | RAPID CITY |
| BLACK HILLS METAL FABRICATORS LLC | DL033133 | 2013-07-15 | Active | — |
| Black Hills Metal Fabricators, Inc. | DB194097 | 2013-07-15 | Active | RAPID CITY |
| BLACK HILLS METAL FINISHING, INC. | DB196829 | 2021-02-16 | Dissolved | RAPID CITY |
| Black Hills Metal Works LLC | DL146221 | 2018-04-02 | Dissolved | Black Hawk |
| Black Hills Metal, LLC | DL144102 | 2018-02-16 | Dissolved | Rapid City |
| Black Hills MHP LLC | DL268137 | 2024-02-08 | Dissolved | WATERTOWN |
| Black Hills Microfarms LLC | DL236676 | 2022-10-14 | Dissolved | Piedmont |
| BLACK HILLS MIDSTREAM, LLC | DL008890 | 2005-03-23 | Inactive | Rapid City |
| BLACK HILLS MIDWIFERY, LLC | DL192620 | 2020-12-10 | Active | Hermosa |
| BLACK HILLS MILK L.L.C. | DL019187 | 2009-06-19 | Dissolved | BELLE FOURCHE |
| BLACK HILLS MILK PRODUCERS | CO000164 | 1950-05-22 | Dissolved | — |
| BLACK HILLS MILLENNIUM PIPELINE, INC. | DB041635 | 1999-07-13 | Dissolved | RAPID CITY |
| BLACK HILLS MILLENNIUM TERMINAL, INC. | DB041847 | 1999-09-17 | Dissolved | RAPID CITY |
| BLACK HILLS MINE SERVICES, LLC | DL014386 | 2007-07-31 | Inactive | — |
| BLACK HILLS MINERAL SOCIETY | NS008058 | 1985-03-14 | Inactive | — |
| BLACK HILLS MINI MELTS LLC | DL032865 | 2013-06-17 | Dissolved | RAPID CITY |
| Black Hills Mining & Stake LLC | DL227180 | 2022-05-17 | Active | Rapid City |
| BLACK HILLS MINING AND GEM CORPORATION | DB028776 | 1989-10-10 | Inactive | — |
| Black Hills Mining Company LLC | DL203686 | 2021-05-28 | Dissolved | Sioux Falls |
| BLACK HILLS MINING MUSEUM, INC. | NS008530 | 1987-05-15 | Active | LEAD |
| BLACK HILLS MINISTRIES | CH003643 | 2012-10-18 | Dissolved | HOT SPRINGS |
| BLACK HILLS MISSIONARY BAPTIST CHURCH, INC. | CH003521 | 2004-07-26 | Dissolved | RAPID CITY |
| Black Hills Mobile Catering LLC | DL263186 | 2024-01-01 | Dissolved | Rapid City |
| Black Hills Mobile Healthcare LLC | DL246218 | 2023-03-10 | Active | Rapid City |
| BLACK HILLS MOBILE HOME SERVICE L.L.C. | DL001649 | 1998-04-29 | Inactive | — |
| Black Hills Mobile Homes, LLC | DL248855 | 2023-04-17 | Dissolved | Rapid City |
| Black Hills Mobile Music, LLC | DL050011 | 2016-09-19 | Dissolved | CUSTER |
| Black Hills Mobile Solutions LLC | DL316207 | 2025-12-22 | Active | Hermosa |
| Black Hills Mobility, LLC | DL203553 | 2021-05-25 | Active | Rapid City |
| Black Hills Modern Endodontics, LLC | DL157517 | 2018-12-13 | Active | RAPID CITY |
| BLACK HILLS MOLDING, INC. | DB026584 | 1987-07-30 | Inactive | — |
| BLACK HILLS MOLDING, INC. | DB029274 | 1990-03-20 | Dissolved | RAPID CITY |
| Black Hills MomCo | NS285719 | 2024-10-24 | Active | Rapid City |
| Black Hills Moments LLC | DL247592 | 2023-03-29 | Dissolved | RAPID CITY |
| Black Hills Montessori LLC | DL160172 | 2019-02-08 | Dissolved | Rapid City |
| Black Hills Montessori School, LLC | DL172154 | 2019-10-24 | Inactive | Rapid City |
| BLACK HILLS MONTESSORI, LLC | DL019670 | 2009-09-02 | Dissolved | RAPID CITY |
| BLACK HILLS MONUMENT LLC | DL222346 | 2022-03-09 | Active | BELLE FOURCHE |
| BLACK HILLS MORTGAGE COMPANY, LLC | FL000317 | 1998-05-26 | Revoked | NEWCASTLE |
| Black Hills Mortgage, LLC | DL229955 | 2022-07-04 | Dissolved | Littleton |
| Black Hills Motel Development, Inc. | DB145125 | 2018-03-09 | Active | SIOUX FALLS |
| Black Hills Motion Media LLC | DL295091 | 2025-03-10 | Dissolved | Rapid City |
| BLACK HILLS MOTION PICTURES, LLC | DL027602 | 2012-03-21 | Active | Sioux Falls |
| Black Hills Moto, LLC | DL225349 | 2022-04-20 | Active | Spearfish |
| Black Hills Motocross Association LLC | DL224169 | 2022-05-01 | Dissolved | Deadwood |
| BLACK HILLS MOTOCROSS CLUB | NS011473 | 2000-04-10 | Inactive | — |
| BLACK HILLS MOTOR CLASSIC CONSORTIUM, INC. | NS009491 | 1991-10-07 | Inactive | — |
| BLACK HILLS MOTOR SPEEDWAY, INC. | DB042593 | 2000-03-23 | Inactive | — |
| Black Hills Motor Works LLC | DL214633 | 2021-11-17 | Active | Sturgis |
| Black Hills Motor Works, LLC | DL047542 | 2016-03-15 | Inactive | Sturgis |
| Black Hills Motorcycle Film Festival LLC | DL178449 | 2020-03-09 | Inactive | Custer |
| BLACK HILLS MOTORCYCLE RALLY AND RACES, INC. | NS010295 | 1995-03-27 | Dissolved | STURGIS |
| Black Hills Motorcycle Rentals, Inc. | DB059968 | 2015-04-10 | Dissolved | RAPID CITY |
| Black Hills Motorcycle Show | NS243419 | 2023-01-31 | Active | Deadwood |
| BLACK HILLS MOTORCYCLE TOURS, LLC | DL008573 | 2005-01-26 | Dissolved | — |
| BLACK HILLS MOTORCYCLE TOURS, LLC | DL035114 | 2013-09-16 | Dissolved | Spearfish |
| BLACK HILLS MOTORCYCLE VALET, INC. | DB053460 | 2008-03-31 | Inactive | — |
| Black Hills Motorsports, LLC | DL038027 | 2014-03-27 | Dissolved | SIOUX FALLS |
| BLACK HILLS MOUNTAIN BIKE ASSOCIATION | NS009861 | 1993-05-24 | Active | Rapid City |
| Black Hills Mountain Lion Foundation | NS265458 | 2023-12-29 | Active | Piedmont |
| BLACK HILLS MOUNTAIN LION FOUNDATION, INC. | NS012387 | 2003-09-15 | Inactive | CUSTER |
| Black Hills Mountain Vacation Rentals LLC | DL281077 | 2024-08-14 | Active | Custer |
| BLACK HILLS MOVERS, INC. | DB002944 | 1962-10-15 | Dissolved | — |
| Black Hills MT LLC | DL049154 | 2016-07-05 | Dissolved | CUSTER |
| BLACK HILLS MT. RUSHMORE, INC. | DB026998 | 1987-12-30 | Inactive | — |
| BLACK HILLS MULTI-SPORTS, INC. | NS014494 | 2010-12-27 | Active | Rapid City |
| BLACK HILLS MUSEUM OF NATURAL HISTORY, INC. | NS009581 | 1992-03-09 | Active | HILL CITY |
| Black Hills Museum of Natural Science, LLC | DL261910 | 2023-11-03 | Active | HILL CITY |
| Black Hills Mushrooms llc | DL146499 | 2018-04-10 | Active | RAPID CITY |
| Black Hills Music Therapy, LLC | DL226820 | 2022-05-11 | Suspended | Rapid City |
| Black Hills Music, LLC | DL039420 | 2014-06-30 | Dissolved | RAPI DCITY |
| BLACK HILLS MUSICAL THEATER, INC. | DB050752 | 2006-02-23 | Dissolved | RAPID CITY |
| Black Hills Myofascial Release LLC | DL192605 | 2020-12-10 | Active | Hill City |
| Black Hills N.E. Design, LLC | DL204854 | 2021-06-16 | Suspended | BOX ELDER |
| Black Hills Nail Studio LLC | DL278288 | 2024-07-04 | Active | Rapid City |
| BLACK HILLS NAIL WORKS, LLP | DR000408 | 1999-08-26 | Inactive | DEADWOOD |