| ARMSTRONG BROTHERS, INCORPORATED | — | 00038068 | — | Dissolved | |
| ARMSTRONG CANNING & PRESERVING COMPANY | — | 00031626 | — | Dissolved | |
| ARMSTRONG CAPITAL INVESTMENTS, INC. | — | 00882320 | 2008-03-20 | Dissolved | JEFFERSON CITY |
| ARMSTRONG CHEMCON, INC. | — | F00137077 | — | Dissolved | |
| ARMSTRONG CIVIC AND RECREATION ASSN., INC. | — | N00009769 | 1969-12-10 | Dissolved | ARMSTRONG |
| ARMSTRONG CLEANERS, INC. | — | 00070812 | — | Dissolved | |
| ARMSTRONG COAL COMPANY | — | F00003709 | 1921-03-03 | Canceled | Jefferson City |
| ARMSTRONG COAL COMPANY, INC. | — | F00833346 | 2007-07-30 | Dissolved | Jefferson City |
| ARMSTRONG COAL RESERVES, INC. | — | F00832517 | 2007-07-26 | Dissolved | Jefferson City |
| ARMSTRONG COLLABORATIVE LLC | — | LC014510015 | 2023-12-01 | Active | Kansas City |
| ARMSTRONG COMMERCIAL CLEANS LLC | — | LC014720135 | 2026-03-28 | Active | HARRISONVILLE |
| ARMSTRONG COMMUNICATIONS, INC. | — | 00384597 | 1993-08-16 | Dissolved | CAMDENTON |
| ARMSTRONG COMMUNITY FIRE ASSOCIATION | — | B00013200 | 1953-10-13 | Active | NO CITY |
| ARMSTRONG COMMUNITY REVITALIZATION COMMITTEE | — | N00972391 | 2009-05-28 | Dissolved | Armstrong |
| ARMSTRONG CONSTRUCTION, INC. | — | 00406082 | 1995-01-18 | Dissolved | NEVADA |
| ARMSTRONG CONSTRUCTION, LLC | — | LC0024759 | 1999-01-06 | Active | ST. LOUIS |
| ARMSTRONG CORK COMPANY | — | F00000787 | — | Dissolved | |
| ARMSTRONG CORK COMPANY | — | F00188104 | 1976-12-20 | Dissolved | ST. LOUIS |
| ARMSTRONG CORK PRODUCTS COMPANY | — | F00002507 | 1914-02-21 | Dissolved | ST. LOUIS |
| ARMSTRONG COUNSELING SERVICES, INC. | — | 00488513 | 2000-09-29 | Dissolved | Ava |
| ARMSTRONG CUSTOM CONCRETE CONSTRUCTION, LLC | — | LC014564887 | 2024-07-22 | Active | Urbana |
| ARMSTRONG DEVELOPMENT LLC | — | LC001509955 | 2016-10-07 | Active | EUREKA |
| ARMSTRONG DRYWALL & PAINTING, LLC | — | LC014688712 | 2026-01-01 | Active | Saint Louis |
| ARMSTRONG ELEMENTARY SCHOOL PTA | — | N001700926 | 2025-07-03 | Active | Bridgeton |
| ARMSTRONG ENERGY, INC. | — | F001321077 | 2014-11-04 | Dissolved | Jefferson City |
| ARMSTRONG ENGINEERING CORPORATION | — | 00456216 | 1998-05-26 | Dissolved | BALLWIN |
| ARMSTRONG ENTERPRISES LLC | — | LC001562717 | 2017-11-07 | Active | Jefferson City |
| ARMSTRONG ENTERPRISES, INC. | — | 00120063 | 1966-03-22 | Canceled | ST. LOUIS |
| ARMSTRONG ENTERPRISES, INC. | — | 00078824 | — | Dissolved | |
| ARMSTRONG ENTERPRISES, INC. | — | 00379569 | 1993-04-14 | Canceled | ST LOUIS |
| ARMSTRONG ENTERPRISES, INC. | — | 00096082 | — | Dissolved | |
| ARMSTRONG FAMILY COUNSELING, LLC | — | FL001712299 | 2025-08-07 | Active | Harrisonville |
| ARMSTRONG FARMERS BANK | — | K00000555 | — | Dissolved | |
| ARMSTRONG FARMS, INC. | — | 00174738 | 1975-03-03 | Dissolved | ST. LOUIS |
| ARMSTRONG FARMS, INC. | — | 01038002 | 2010-02-22 | Active | Luray |
| ARMSTRONG FIREFIGHTERS AUXILLARY | — | N001693119 | 2023-06-14 | Dissolved | Armstrong |
| ARMSTRONG FLOORING, INC. | — | F001324435 | 2016-03-02 | Dissolved | Jefferson City |
| ARMSTRONG FOUNDATION CO., INC. | — | 00119743 | 1966-02-24 | Revoked | RAYTOWN |
| ARMSTRONG FOUNDRY & MANUFACTURING CO. | — | 00065682 | — | Dissolved | |
| ARMSTRONG FOUNDRY & MFG. COMPANY | — | 00069356 | — | Dissolved | |
| ARMSTRONG FOUNDRY COMPANY | — | 00019908 | — | Dissolved | |
| ARMSTRONG FURNITURE COMPANY | — | 00021049 | — | Dissolved | |
| ARMSTRONG GILL MERCANTILE COMPANY | — | 00035356 | — | Dissolved | |
| ARMSTRONG GROUP & ASSOCIATES, LLC | — | LC014607975 | 2025-02-05 | Active | Springfield |
| ARMSTRONG HARDWOOD FLOOR SERVICE, INC. | — | 00356477 | 1991-08-20 | Merged | Lee's Summit |
| ARMSTRONG HARDWOOD FLOORING COMPANY | — | F00591936 | 2004-06-04 | Dissolved | Jefferson City |
| ARMSTRONG HEALTH & FITNESS, INC. | — | 00444665 | 1997-08-11 | Dissolved | TROY |
| ARMSTRONG HERITAGE FARM, INC. | — | 00463472 | 1998-12-14 | Active | Thayer |
| ARMSTRONG HERITAGE, INC. | — | 00416269 | 1995-09-13 | Active | Scott City |
| ARMSTRONG HOLDINGS LLC | — | LC014733057 | 2026-05-07 | Active | Kansas City |
| ARMSTRONG HOME INSPECTIONS, L.L.C. | — | LC0067578 | 2002-07-10 | Active | ST. CHARLES |
| ARMSTRONG HOME REPAIRS LLC | — | LC014506293 | 2023-11-13 | Active | Moberly |
| ARMSTRONG INNOVATIONS LLC | — | LC014597972 | 2024-12-26 | Active | Harrisonville |
| ARMSTRONG INSURANCE AGENCY, INC. | — | 00098496 | 1960-04-01 | Dissolved | PINEVILLE |
| ARMSTRONG INVESTMENT COMPANY | — | 00437329 | 1997-02-14 | Canceled | Clayton |
| ARMSTRONG INVESTMENT GROUP, L.C. | — | LC0024906 | 1999-01-14 | Active | KANSAS CITY |
| ARMSTRONG JUNIOR FIREFIGHTERS | — | N001693118 | 2023-06-14 | Dissolved | Armstrong |
| ARMSTRONG LAND COMPANY, LLC | — | FL0986221 | 2009-07-31 | Canceled | St. Louis |
| ARMSTRONG LAUNDRY DISTRIBUTING, INC. | — | 00114409 | 1964-10-15 | Revoked | GLADSTONE |
| ARMSTRONG LION'S CLUB | — | N00037122 | 1987-08-19 | Revoked | ARMSTRONG |
| ARMSTRONG LIQUORS, INC. | — | 00334735 | 1989-12-01 | Dissolved | FLORISSANT |
| ARMSTRONG LIVESTOCK BUYERS, INC. | — | 00237202 | 1981-12-18 | Revoked | COLUMBIA |
| ARMSTRONG LOGISTIX, INC. | — | 00520052 | 2003-04-08 | Dissolved | MARYVILLE |
| ARMSTRONG MARKETS LLC | — | LC014747650 | 2026-06-12 | Active | Springfield |
| ARMSTRONG MCCALL, L.P. | — | LF0845850 | 2007-09-28 | Active | St. Louis |
| ARMSTRONG MILLING AND ELEVATOR COMPANY | — | 00010330 | — | Dissolved | |
| ARMSTRONG MINING COMPANY | — | 00006469 | — | Dissolved | |
| ARMSTRONG MINING, INC. | — | F00832439 | 2007-07-26 | Dissolved | Jefferson City |
| ARMSTRONG MOTORS, INC. | — | 00398073 | 1994-06-30 | Dissolved | Bridgeton |
| ARMSTRONG NELSON PROPERTIES, L.P. | — | LP0001064 | 1988-01-22 | Dissolved | ST. LOUIS |
| ARMSTRONG OIL & DISTRIBUTING, INC. | — | 00181044 | 1976-01-22 | Active | Clinton |
| ARMSTRONG OIL AND GAS COMPANY | — | 00039227 | — | Dissolved | |
| ARMSTRONG PAINT & VARNISH WORKS, INC. | — | F00012720 | 1958-03-27 | Dissolved | KANSAS CITY |
| ARMSTRONG PAVING COMPANY | — | F00006633 | 1931-06-12 | Revoked | JEFFERSON CITY |
| ARMSTRONG PHARMACEUTICALS, INC. | — | F00953268 | 2009-03-05 | Active | Rolla |
| ARMSTRONG PHYSICAL THERAPY LLC | — | LC014682632 | 2025-11-24 | Active | Marshfield |
| ARMSTRONG PLUMBING AND CONSTRUCTION LLC | — | LC014629962 | 2025-05-02 | Active | Moberly |
| ARMSTRONG PLUMBING INCORPORATED | — | 00328764 | 1989-06-05 | Dissolved | Saint Louis |
| ARMSTRONG PMHNP, P.C. | — | P001477887 | 2025-09-11 | Active | Saint Louis |
| ARMSTRONG PRECISION POWER WASH LLC | — | LC014630351 | 2025-05-04 | Active | Richland |
| ARMSTRONG PRESS BRICK COMPANY | — | 00000960 | — | Dissolved | |
| ARMSTRONG PRESS BRICK MACHINE COMPANY | — | 00000844 | — | Dissolved | |
| ARMSTRONG PRINTED CIRCUIT COMPANY | — | 00289079 | 1986-05-13 | Revoked | CAMDENTON |
| ARMSTRONG PRODUCTS, INC. | — | 00278384 | 1985-07-15 | Revoked | CLAYTON |
| ARMSTRONG PROPERTIES - LTC, L.P. | — | LP0001364 | 1988-06-06 | Dissolved | ST. LOUIS |
| ARMSTRONG PROPERTIES, INC. | — | 00274964 | 1985-04-08 | Revoked | ST. LOUIS |
| ARMSTRONG REAL ESTATE SERVICES, INC. | — | 01355888 | 2013-11-12 | Dissolved | Lee's Summit |
| ARMSTRONG REALTY SOLUTIONS LLC | — | LC014616035 | 2025-03-14 | Active | Battlefield |
| ARMSTRONG SALES CORP. | — | F00611061 | 2004-09-13 | Dissolved | Jefferson City |
| ARMSTRONG SCHMITTGENS, L.L.C. | — | LC0040290 | 2000-06-27 | Active | MANCHESTER |
| ARMSTRONG SLIP COVERS COMPANY | — | 00133915 | 1969-02-03 | Merged | INDEPENDENCE |
| ARMSTRONG STAFFING, LLC | — | LC0900390 | 2008-05-22 | Active | Desoto |
| ARMSTRONG STEEL ERECTORS, INC. | — | F00419701 | 1995-12-14 | Dissolved | CLAYTON |
| ARMSTRONG STEEL PRODUCTS, LLC | — | LC014572892 | 2024-08-27 | Active | Sullivan |
| ARMSTRONG STONE CONTRACTING, INC. | — | 00184046 | 1976-06-07 | Dissolved | PLEASANT HILL |
| ARMSTRONG STORAGE & PARKING, LLC | — | LC014725023 | 2026-04-13 | Active | Lebanon |
| ARMSTRONG STRATEGIC DELIVERY SOLUTIONS L.L.C. | — | LC014478662 | 2023-07-16 | Active | CAPE GIRARDEAU |
| ARMSTRONG TEAM TRANSPORT LLC | — | LC014543387 | 2024-04-18 | Active | Raytown |
| ARMSTRONG TEASDALE LLP | — | PL0009999 | 1998-12-16 | Expired | ST LOUIS |
| ARMSTRONG TEASDALE LLP | — | PL0012449 | 2001-01-31 | Active | Saint Louis |
| ARMSTRONG THE BANK OF ARMSTRONG | — | K00001027 | — | Dissolved | |
| ARMSTRONG TRACTOR & IMPLEMENT CO., INC. | — | 00118880 | 1965-12-17 | Revoked | LIBERTY |
| ARMSTRONG TRANSPORT GROUP JC, LLC | — | LC014624660 | 2025-04-11 | Active | Jefferson City |
| ARMSTRONG TRUCKING AND MOTORSPORTS LLC | — | LC014655967 | 2025-08-13 | Active | Mount Vernon |
| ARMSTRONG TRUCKING, L.L.C. | — | LC0931280 | 2008-11-14 | Active | Rutledge |
| ARMSTRONG TRUCKS, INC. | — | 00409857 | 1995-04-07 | Dissolved | KAHOKA |
| ARMSTRONG UNLIMITED LLC | — | LC014573001 | 2024-08-27 | Active | Galena |
| ARMSTRONG VENTURES, INCORPORATED | — | 00385655 | 1993-09-13 | Dissolved | Wildwood |
| ARMSTRONG VISUAL ARTS LLC | — | LC014592041 | 2024-11-24 | Active | Kansas City |
| ARMSTRONG WASHINGTON CEMETERY ASSOCIATION, INC. | — | B00014206 | 1959-03-25 | Active | NO CITY |
| ARMSTRONG WOOD PRODUCTIONS, INC. | — | 00256657 | 1983-09-30 | Revoked | CLAYTON |
| ARMSTRONG WOOD PRODUCTS, INC. | — | F00318989 | 1988-09-02 | Withdrawn | Jefferson City |
| ARMSTRONG WORLD INDUSTRIES, INC. | — | F00008098 | 1938-10-27 | Active | Jefferson City |
| ARMSTRONG'S HANDYMAN SERVICE LLC | — | LC014668299 | 2025-09-30 | Active | Joplin |
| ARMSTRONG'S HOUSING PROPERTIES LLC | — | LC014470942 | 2023-06-14 | Active | Sikeston |
| ARMSTRONG, RITTER, BROWN CORPORATION | — | 00311005 | 1988-01-26 | Inactive | ON MARCH 16, 1990 |
| ARMSTRONG, TORSETH, SKOLD AND RYDEEN, INC. | — | F00503183 | 2001-12-11 | Dissolved | KANSAS CITY |
| ARMSTRONG-BELL MANUFACTURING COMPANY | — | 00027125 | — | Dissolved | |
| ARMSTRONG-BOND MANUFACTURING COMPANY | — | 00076443 | — | Dissolved | |
| ARMSTRONG-CAPE GIRARDEAU, INC. | — | 00117253 | 1965-07-13 | Merged | CAPE GIRARDEAU |
| ARMSTRONG-CITYWIDE, INC. | — | 00300354 | 1987-03-23 | Dissolved | Kansas City |
| ARMSTRONG-ELLWOOD HARDWARE COMPANY | — | 00022181 | — | Dissolved | |
| ARMSTRONG-GATZWEILER MOTOR CO. | — | 00046345 | — | Dissolved | |
| ARMSTRONG-GATZWEILER REAL ESTATE CO. | — | 00046346 | — | Dissolved | |
| ARMSTRONG-GILBERT CORK COMPANY | — | 00005964 | — | Dissolved | |
| ARMSTRONG-MAISON DE VILLE, L.L.C. | — | LC0010958 | 1997-01-21 | Canceled | St. Louis |
| ARMSTRONG-MENCZER MOULD AND METAL COMPANY | — | 00022758 | — | Dissolved | |
| ARMTECH, INC. | — | 00309330 | 1987-12-07 | Revoked | ST. CHARLES |
| ARMU LLC | — | LC014584402 | 2024-10-18 | Active | CAPE GIRARDEAU |
| ARMUGONI LIMITED COMPANY | — | LC014740813 | 2026-05-26 | Active | Chesterfield |
| ARMUSA LLC | — | LC1304120 | 2013-04-03 | Active | SAINT LOUIS |
| ARMY AND NAVY CLUB OF ST. LOUIS | — | B00004147 | 1912-06-12 | Dissolved | NO CITY |
| ARMY ANTS APPAREL LLC | — | LC014731780 | 2026-05-04 | Active | Saint Charles |
| ARMY MOTHER'S CLUB NO. 1, KANSAS CITY, MISSOURI | — | B00009284 | 1940-12-16 | Active | NO CITY |
| ARMY NATIONAL BANCSHARES, INC. | — | 00227317 | 1981-01-15 | Merged | CHILLICOTHE |
| ARMY NATIONAL BANCSHARES, INC. | — | BID2750806 | 1993-04-07 | Merged | |
| ARMY OF ONE FOUNDATION | — | N001705500 | 2026-07-09 | Active | Berkeley |
| ARMY OF THE LORD REMNANT ACADAMY | — | N00036707 | 1987-06-08 | Dissolved | Florissant |
| ARMY OF THE LORD REMNANT ACADEMY | — | LC0543169 | 2003-09-23 | Canceled | Florissant |
| ARMY OF THE WEST, INC. | — | N00039009 | 1988-09-09 | Revoked | FENTON |
| ARMY PUBLISHING COMPANY | — | 00078337 | — | Dissolved | |
| ARMY RESERVE ASSOCIATION, MISSOURI CHAPTER | — | N00048989 | 1993-10-25 | Dissolved | OZARK |
| ARMY RESERVE STATION COMPLEMENT ASSOCIATION OF KANSAS CITY | — | N00000289 | — | Dissolved | |
| ARMY SUSTAINMENT LLC | — | FL001424893 | 2018-08-02 | Canceled | JEFFERSON CITY |
| ARMY VETERAN ASSISTANCE, LLC | — | LC014466638 | 2023-05-25 | Active | Saint Louis |
| ARMY, AIR FORCE SPECIALTY SHOPS, INC. | — | 00409597 | 1995-04-03 | Dissolved | ST. ROBERT |
| ARMYGEDDON LLC | — | LC014513891 | 2023-12-19 | Active | Lake Saint Louis |
| ARMZ USA LLC | — | LC0844627 | 2007-09-25 | Dissolved | Jefferson City |
| ARMZ, Inc. | — | 00637947 | 2005-02-07 | Dissolved | Kansas City |
| ARMainSt, LLC | — | LC001654289 | 2019-06-24 | Active | Arrow Rock |
| ARN ACQUISITION CORP. | — | 01284398 | 2013-01-18 | Dissolved | Galdstone |
| ARN CONSTRUCTION CO. | — | 00319200 | 1988-09-09 | Dissolved | KANSAS CITY |
| ARN ENTERPRISE LLC | — | LC001528682 | 2017-03-03 | Active | RAYTOWN |
| ARN Enterprises, LLC | — | LC0670121 | 2005-07-05 | Active | St. Louis |
| ARN FOODS LLC | — | LC014715350 | 2026-03-12 | Active | Harrisonville |
| ARN Holding Company, LLC | — | LC001456070 | 2015-07-30 | Active | Webster Groves |
| ARN II, LLC | — | LC1315380 | 2013-05-20 | Active | Weatherby Lake |
| ARN INDIA, LLC | — | LC014658008 | 2025-08-20 | Active | Springfield |
| ARN INDUSTRIES, INC. | — | F00501969 | 2001-10-29 | Canceled | Jefferson City |
| ARN MARKETING, LLC | — | LC014583257 | 2024-10-14 | Active | Saint Louis |
| ARN PROPERTIES, LLC | — | LC014723851 | 2026-04-09 | Active | LEE'S SUMMIT |
| ARN TRANSPORTATION LLC | — | LC014487177 | 2023-08-18 | Dissolved | Jefferson City |
| ARN, LLC | — | LC0893894 | 2008-05-12 | Active | Kansas City |
| ARNAIZCARINA LLC | — | LC014555034 | 2024-06-06 | Dissolved | Jefferson City |
| ARNAK CONSULTING LLC | — | LC014563373 | 2024-07-16 | Active | Chesterfield |
| ARNALL & SONS LUMBER COMPANY, LLC | — | LC0059762 | 2002-01-14 | Active | HARTVILLE |
| ARNALL INSURANCE AGENCY INC. | — | 00476668 | 2000-01-01 | Canceled | SPRINGFIELD |
| ARNALL LEASING COMPANY LLC | — | LC001671556 | 2019-10-09 | Active | Springfield |
| ARNALL SERVICE GARAGE | — | 00052490 | — | Dissolved | |
| ARNALL TRUCKING LLC | — | LC1409073 | 2014-06-12 | Active | Lebanon |
| ARNALL'S PROCESSING, INC. | — | 00259601 | 1983-12-30 | Revoked | PLEASANT HOPE |
| ARNALL, INC. | — | 00065400 | 1944-02-15 | Revoked | ST. LOUIS |
| ARNALLS BULLDOZING AND BACKHOE LLC | — | LC001419299 | 2014-09-19 | Active | ASH GROVE |
| ARNALLS LLC | — | LC001671779 | 2019-10-10 | Active | Springfield |
| ARNAMAN FAMILY PARTNERSHIP, LP | — | LP0818813 | 2007-05-24 | Active | Osborn |
| ARNATHECRAZE LLC | — | LC014595937 | 2024-12-13 | Active | Lees Summit |
| ARNBRO CORP. | — | 00270794 | 1984-12-06 | Revoked | DEXTER |
| ARNCE INVESTMENTS, LLC | — | LC0526142 | 2003-06-13 | Active | Carl Junction |
| ARNCO FARMS, INC. | — | 00483338 | 2000-05-09 | Dissolved | Sikeston |
| ARNCO MECHANICAL, LLC | — | LC0592891 | 2004-06-10 | Active | Rolla |
| ARNCO PETROLEUM TRANSPORTATION, INC. | — | F00442789 | 1997-06-23 | Dissolved | Jefferson City |
| ARNCO Transportation LLC | — | LC001568974 | 2018-01-01 | Canceled | Sikeston |
| ARNCO, INC. | — | 00392698 | 1994-03-01 | Dissolved | ST. LOUIS |
| ARNDORFER DEVELOPMENT LLC | — | LC014576215 | 2024-09-11 | Active | Grain Valley |
| ARNDORFER GROUP REFERRAL, LLC | — | LC001544501 | 2017-06-22 | Active | Lees Summit |
| ARNDT & KLEIER HOMES, LLC | — | LC0802784 | 2007-03-13 | Active | Clever |
| ARNDT BROTHERS, INC. | — | 00282559 | 1985-11-18 | Revoked | CHILHOWEE |
| ARNDT CREATIVE CABINETRY, INC. | — | 00338097 | 1990-03-05 | Dissolved | HILLSBORO |
| ARNDT DEBOER HOWELL, LLC | — | LC014484604 | 2023-08-08 | Active | Saint Louis |
| ARNDT ENTERPRISES, INC. | — | F00785705 | 2006-12-26 | Active | Jefferson City |
| ARNDT MERCANTILE & REALTY COMPANY | — | 00007460 | — | Dissolved | |
| ARNDT PROPERTIES, LLC | — | LC014522235 | 2024-01-26 | Active | Strafford |
| ARNDT ROOF COMPANY | — | 001646716 | 2023-07-04 | Dissolved | Curryville |
| ARNDT'S CABINET CO., INC. | — | 00148185 | 1971-05-26 | Dissolved | POPLAR BLUFF |
| ARNDT'S FURNITURE REFINISHING & RESTORATION, INC. | — | 00428286 | 1996-06-27 | Dissolved | HIGGINSVILLE |
| ARNDT-MCBEE INSURANCE AGENCY, INC. | — | F00361415 | 1992-01-13 | Dissolved | CLAYTON |
| ARNDT/WILLIAMS PRODUCTS LLC | — | LC0015623 | 1997-10-30 | Canceled | STRAFFORD |
| ARNE & ASSOCIATES, INC. | — | 00420054 | 1995-12-22 | Dissolved | LEE'S SUMMIT |
| ARNE E. CARLSON, INC. | — | 00138161 | 1969-10-03 | Revoked | CREVE COEUR |
| ARNE PROPERTIES LLC | — | LC014563440 | 2024-07-16 | Active | Troy |