| Arch Equity Partners, LLC | — | LC1085418 | 2010-09-15 | Active | St. Louis |
| Arch Equity, LLC | — | LC0846506 | 2007-10-03 | Active | Town & Country |
| Arch Erectors LLC | — | LC001617614 | 2018-11-09 | Active | Bonne Terre |
| Arch Errand Service, LLC | — | LC1041754 | 2010-03-10 | Active | St. Louis |
| Arch Excess & Surplus Insurance Company | — | NR000768569 | 2014-07-24 | Inactive | |
| Arch Exterior Construction LLC | — | LC1771285 | 2021-03-17 | Active | Maryland Heights |
| Arch Exterior Contracting, Inc. | — | 00735314 | 2006-05-01 | Dissolved | Hillsboro |
| Arch Exteriors LLC | — | LC1212173 | 2012-03-13 | Active | Arnold |
| Arch Extracts, LLC | — | LC001468539 | 2015-11-13 | Active | CAPE GIRARDEAU |
| Arch Fabricating, LLC | — | LC001672640 | 2019-10-17 | Merged | Valley Park |
| Arch Fiber Acquisition, L.L.C. | — | LC1364459 | 2013-12-20 | Active | St. Louis |
| Arch Fiber Inc | — | 01001001 | 2009-10-01 | Dissolved | Lake Saint Louis |
| Arch Film Geeks LLC | — | LC001680615 | 2019-12-15 | Canceled | Saint Louis |
| Arch Financial Advisors, LLC | — | LC001421590 | 2014-10-09 | Active | St. Louis |
| Arch Financial Group, LLC | — | LC0608773 | 2004-09-07 | Active | Saint Louis |
| Arch Financial Services, L.L.C. | — | LC0643753 | 2005-03-04 | Active | High Ridge |
| Arch Floor Services LLC | — | LC001523620 | 2017-01-30 | Active | St.Louis |
| Arch Flooring LLC | — | LC001649449 | 2019-05-22 | Active | High Ridge |
| Arch Fluid Motors and Valves, LLC | — | LC1014857 | 2009-12-06 | Active | SAINT LOUIS |
| Arch Front Builds LLC | — | LC014418550 | 2022-11-10 | Active | Saint Louis |
| Arch Front Construction L.L.C. | — | LC001423837 | 2014-10-30 | Active | St. Louis |
| Arch Front Distributing, L.L.C | — | LC1273524 | 2012-12-04 | Active | O'Fallon |
| Arch Grounds Coffee LLC | — | LC001700087 | 2020-04-16 | Active | Saint Louis |
| Arch HVAC 'LLC' | — | LC001585974 | 2018-04-09 | Active | Saint louis |
| Arch Habits, LLC | — | LC1226482 | 2012-05-09 | Active | St. Louis |
| Arch Heating and Air Conditioning LLC | — | LC001483665 | 2016-03-14 | Active | St. Louis |
| Arch Heavy Haul LLC | — | LC1752894 | 2021-01-04 | Active | Laredo |
| Arch Hockey LLC | — | LC1339713 | 2013-09-03 | Active | St. Louis |
| Arch Holdings, LLC | — | LC001419396 | 2014-09-19 | Active | St. Louis |
| Arch Home Inspections LLC | — | LC1740940 | 2020-11-09 | Active | Crestwood |
| Arch Home Repair, LLC | — | LC1094706 | 2010-10-26 | Active | St. Louis |
| Arch Home Services LLC | — | LC001613715 | 2018-10-12 | Active | Brentwood |
| Arch Homes Co0nstruction, LLC | — | LC001439097 | 2015-03-12 | Canceled | St. Charles |
| Arch Homes Contracting Inc. | — | 001367316 | 2015-10-10 | Canceled | St. Charles |
| Arch Homes Realty LLC | — | LC001581914 | 2018-03-15 | Active | St. Louis |
| Arch Homes, LLC | — | LC1379887 | 2014-02-24 | Active | St. Charles |
| Arch Human Resources Consulting, LLC | — | LC1215184 | 2012-03-23 | Active | St. Charles |
| Arch Import Group, LLC | — | LC1126725 | 2011-03-15 | Active | St. Louis |
| Arch Indemnity Insurance Company | — | O00001530 | 1969-12-30 | Merged | JEFFERSON CITY |
| Arch Indemnity Insurance Company | — | I001401436 | 1969-12-30 | Active | JEFFERSON CITY |
| Arch Industrial Coatings, L.L.C. | — | LC0571086 | 2004-03-01 | Active | St. Charles |
| Arch InnoTek, LLC | — | LC1353177 | 2013-10-31 | Canceled | Manchester |
| Arch Interim Housing LLC | — | LC0780801 | 2006-12-06 | Merged | Jefferson City |
| Arch Investigations L.L.C. | — | LC014442690 | 2023-02-22 | Active | Fenton |
| Arch Investment Properties, LLC | — | LC1805562 | 2021-08-02 | Active | Saint Louis |
| Arch Investments, LLC | — | LC001496972 | 2016-06-23 | Active | Olivette |
| Arch Irrigation and Drainage LLC | — | LC1769624 | 2021-03-11 | Active | Ballwin |
| Arch Lacrosse LLC | — | LC014344327 | 2021-12-29 | Active | CAPE GIRARDEAU |
| Arch Land Development, LLC | — | LC0702130 | 2005-12-09 | Canceled | St. Louis |
| Arch Learning Services, LLC | — | LC1054966 | 2010-04-30 | Active | Ballwin |
| Arch Leasing LLC | — | LC001460692 | 2015-09-09 | Active | Saint Charles |
| Arch Legal Group L.L.C. | — | LC001572435 | 2018-01-18 | Active | St. Louis |
| Arch Literacy Learning Institute | — | N000699013 | 2015-06-15 | Dissolved | Saint Louis |
| Arch Lofts, LLC | — | LC1790607 | 2021-05-26 | Active | Sunset Hills |
| Arch Logistics, LLC | — | LC0622656 | 2004-11-18 | Merged | JEFFERSON CITY |
| Arch Maintenance, LLC | — | LC001489037 | 2016-04-22 | Active | St. Louis |
| Arch Management Partners, L.P. | — | LP0655606 | 2005-04-22 | Active | St. Louis |
| Arch Marketing, LLC | — | LC0907147 | 2008-07-14 | Active | St. Louis |
| Arch Material Installation, LLC | — | LC001410903 | 2014-06-27 | Active | St Louis |
| Arch Mattress Company LLC | — | LC001437276 | 2015-02-26 | Active | Florissant |
| Arch Media, LLC | — | LC001611891 | 2018-10-01 | Active | Hazelwood |
| Arch Medical LLC | — | LC1104896 | 2010-12-14 | Canceled | Cape Girardeau |
| Arch Mobile Notary LLC | — | LC014341321 | 2021-12-14 | Active | Florissant |
| Arch Mobile Notary LLC | — | LC014341320 | 2021-12-14 | Active | |
| Arch Mole Trapping, LLC | — | LC1711816 | 2020-06-21 | Active | Saint Charles |
| Arch Mortgage Assurance Company | — | O00002924 | 2001-07-06 | Active | JEFFERSON CITY |
| Arch Mortgage Guaranty Company | — | O00001473 | 1968-09-11 | Active | JEFFERSON CITY |
| Arch Mortgage Insurance Company | — | O00002047 | 1981-12-09 | Active | JEFFERSON CITY |
| Arch Mortgage, LLC | — | LC1009126 | 2009-11-06 | Active | St. Louis |
| Arch Motorsports LLC | — | LC1262468 | 2012-10-13 | Active | Saint Lous |
| Arch Moving LLC | — | LC001521217 | 2017-01-12 | Active | St. Louis |
| Arch Moving LLC | — | NR000769963 | 2016-10-17 | Inactive | |
| Arch Moving LLC | — | NR000770083 | 2016-12-17 | | |
| Arch Mvdd Dance Entertainment LLC | — | LC001633695 | 2019-02-22 | Active | berkeley |
| Arch Navigation LLC | — | LC1103784 | 2010-12-08 | Active | Saint Louis |
| Arch Nemesis Brewing LLC | — | LC001594869 | 2018-06-07 | Active | Ofallon |
| Arch Nemesis Tattoo & Piercing LLC | — | LC001670501 | 2019-10-02 | Active | Saint Louis |
| Arch Nemesis Tattoo LLC | — | LC001621742 | 2018-12-11 | Active | SAINT LOUIS |
| Arch Neurosurgery, LLC | — | LC001584358 | 2018-03-29 | Active | CAPE GIRARDEAU |
| Arch Notary and Mobile Closing Services LLC | — | LC0863607 | 2007-12-27 | Active | Saint Louis |
| Arch Oncology, Inc. | — | NR000770715 | 2017-10-31 | Inactive | |
| Arch One Properties LLC | — | LC001412671 | 2014-07-15 | Active | St. Louis |
| Arch Orthopaedics LLC | — | LC1792892 | 2021-06-07 | Active | Harrisonville |
| Arch Pacific USA LLC | — | LC001627930 | 2019-01-19 | Active | CHESTERFIELD |
| Arch Packaging Technologies, LLC | — | LC001433034 | 2015-01-25 | Active | Ste Genevieve |
| Arch Pain Management, LLC | — | LC001582680 | 2018-03-20 | Active | CAPE GIRARDEAU |
| Arch Paining Limited Company | — | LC1329822 | 2013-07-24 | Active | St Louis |
| Arch Painting Company LLC | — | LC014370319 | 2022-04-09 | Active | Saint Louis |
| Arch Pavement Solutions, Inc. | — | 01048064 | 2010-04-01 | Dissolved | Jefferson City |
| Arch Pediatrics, LLC | — | LC001584550 | 2018-04-01 | Active | St. Louis |
| Arch Personalized Medicine Initiative, LLC | — | LC001631806 | 2019-02-11 | Canceled | Clayton |
| Arch Physical Therapy, L.L.C. | — | LC1010717 | 2009-11-16 | Active | Ballwin |
| Arch Pizza 1 LLC | — | LC001609209 | 2018-09-12 | Active | SAINT PETERS |
| Arch Pizza 3 LLC | — | LC001609210 | 2018-09-12 | Active | SAINT PETERS |
| Arch Pizza 4 LLC | — | LC001609211 | 2018-09-12 | Active | SAINT PETERS |
| Arch Plumbing, LLC | — | LC001623229 | 2018-12-20 | Active | Lake St. Louis |
| Arch Podiatry LLC | — | LC0958461 | 2009-04-01 | Active | Saint Louis |
| Arch Pointe Properties, LLC | — | LC1143209 | 2011-05-20 | Active | Saint Louis |
| Arch Power Systems, LLC | — | LC0817550 | 2007-05-07 | Active | St. Louis |
| Arch Precision, LLC | — | LC014425237 | 2022-12-13 | Active | Saint Louis |
| Arch Premier Properties LLC | — | LC001497203 | 2016-06-27 | Canceled | St. Louis |
| Arch Premiere, LLC | — | LC014430644 | 2023-01-07 | Canceled | HARRISONVILLE |
| Arch Primary Care II, LLC | — | LC1803470 | 2021-07-22 | Active | St. Louis |
| Arch Primary Care III, LLC | — | LC1804453 | 2021-07-27 | Active | St. Louis |
| Arch Process Integration LLC | — | LC0977925 | 2009-06-26 | Active | Foristell |
| Arch Professional LLC | — | LC001702551 | 2020-05-01 | Active | st louis |
| Arch Properties, LLC | — | LC001421592 | 2014-10-09 | Active | St. Louis |
| Arch Property Casualty Insurance Company | — | I001401434 | 2014-09-26 | Active | Jefferson City |
| Arch Property Development, LLC | — | LC1760009 | 2021-02-01 | Active | Saint Louis |
| Arch Property Group LLC | — | LC1344110 | 2013-09-23 | Active | Richmond Heights |
| Arch Property LLC | — | LC1773630 | 2021-03-25 | Active | Saint Louis |
| Arch Property Solutions, LLC | — | LC001628472 | 2019-01-23 | Active | Saint Louis |
| Arch RE Holdings, LLC | — | LC1715154 | 2020-07-07 | Canceled | St. Louis |
| Arch Radiology, LLC | — | LC1252309 | 2012-08-27 | Active | St. Louis |
| Arch Rail Group, LLC | — | LC001559183 | 2017-10-11 | Active | St. Louis |
| Arch Reactor Core, LLC | — | LC014450938 | 2023-03-24 | Active | Saint Louis |
| Arch Reactor STL, Inc. | — | N01176523 | 2011-10-12 | Active | Saint Louis |
| Arch Ready Mix St. Louis L. L. C. | — | LC0780169 | 2006-12-04 | Dissolved | Jefferson City |
| Arch Readymix Inc. | — | 00779117 | 2006-11-28 | Dissolved | Fenton |
| Arch Real Estate Appraisal Services, Inc. | — | 00535354 | 2003-07-28 | Dissolved | St. Louis |
| Arch Real Estate LLC | — | FL0593062 | 2004-06-14 | Canceled | Jefferson City |
| Arch Reality L.L.C. | — | LC001592909 | 2018-05-24 | Active | Saint Louis |
| Arch Realty Group LLC | — | LC0750009 | 2006-07-07 | Canceled | St louis |
| Arch Realty Partners LLC | — | LC001590908 | 2018-05-10 | Active | Saint Louis |
| Arch Realty Solutions & Construction LLC | — | LC0556465 | 2003-12-11 | Active | Kansas City |
| Arch Reclamation Services LLC | — | FL001419565 | 2017-03-24 | Active | Saint Louis |
| Arch Records LLC | — | LC1800834 | 2021-07-12 | Active | St. Louis |
| Arch Recovery Service, L.L.C. | — | LC0603770 | 2004-08-10 | Active | Eureka |
| Arch Recruiting, LLC | — | LC1740052 | 2020-10-27 | Active | Jonesburg |
| Arch Regional Furry Fandom | — | N01300338 | 2013-03-15 | Merged | Hawk Point |
| Arch Renovations, LLC | — | LC001581217 | 2018-03-11 | Active | Kansas City |
| Arch Rental Services, LLC | — | LC014328935 | 2021-10-18 | Active | Saint Louis |
| Arch Rentals and Sales LLC | — | LC1342448 | 2013-09-16 | Canceled | St. Louis |
| Arch Rentals, LLC | — | LC014446944 | 2023-03-09 | Active | Wentzville |
| Arch Resources, Inc. | — | NR000772301 | 2019-12-27 | Inactive | |
| Arch Resources, Inc. | — | NR000772540 | 2020-04-23 | Inactive | |
| Arch Rival Roller | — | N000713650 | 2020-01-01 | Active | Saint Louis |
| Arch Rival Roller Derby | — | N000703537 | 2016-11-18 | Dissolved | Saint Louis |
| Arch Rival Rollergirls, LLC | — | LC0709654 | 2006-01-13 | Canceled | St. Louis |
| Arch River Treasures LLC | — | LC014326618 | 2021-10-05 | Active | Saint Louis |
| Arch Roofing LLC | — | LC1138667 | 2011-05-02 | Active | Hazelwood |
| Arch Roofing and Exteriors, LLC | — | LC1224040 | 2012-04-30 | Active | St Louis |
| Arch Ryvals LLC | — | LC0728964 | 2006-04-03 | Active | St. Louis |
| Arch STL Imports LLC | — | LC001491811 | 2016-05-12 | Canceled | St. Louis |
| Arch STL Property LLC | — | LC1312506 | 2013-05-08 | Active | Saint Louis |
| Arch Sales, Incorporated | — | 00266349 | 1984-07-13 | Dissolved | Saint Louis |
| Arch Sealing, LLC | — | LC0890567 | 2008-04-25 | Active | Wildwood |
| Arch Securities Group LLC | — | LC1778063 | 2021-04-10 | Active | Chesterfield |
| Arch Services LLC | — | LC001483664 | 2016-03-14 | Active | St. Louis |
| Arch Shadow Media LLC | — | LC014440420 | 2023-02-14 | Active | Harrisonville |
| Arch Software Solutions, LLC | — | LC001569952 | 2018-01-02 | Active | Saint Louis |
| Arch Solutions Agency LLC | — | LC1408112 | 2014-06-10 | Canceled | Clayton |
| Arch Solutions Group LLC | — | LC1398250 | 2014-05-01 | Canceled | Clayton |
| Arch Specialty Insurance Company | — | I001401435 | 2014-09-26 | Active | JEFFERSON CITY |
| Arch Spirits LLC | — | LC014410672 | 2022-10-05 | Active | Saint Louis |
| Arch Sports, LLC | — | LC001422527 | 2014-10-20 | Active | Saint Louis |
| Arch St. Louis City Auto Dealer LLC | — | LC014344821 | 2021-12-31 | Active | Fenton |
| Arch StL Heating and Cooling LLC | — | LC001445842 | 2015-06-01 | Active | Saint Louis |
| Arch Star Transportation LLC | — | LC1725629 | 2020-08-18 | Active | Saint Louis |
| Arch State Academy | — | N01423046 | 2021-07-21 | Active | St. Louis |
| Arch Strategic Solutions LLC | — | LC1735402 | 2020-10-05 | Active | SAINT LOUIS |
| Arch Study Club LLC | — | LC001664650 | 2019-08-26 | Active | CAPE GIRARDEAU |
| Arch Supplier LLC | — | LC1740722 | 2020-10-30 | Active | Clayton |
| Arch Surgery,LLC | — | LC1383060 | 2014-03-06 | Active | st louis |
| Arch Surgical Care LLC | — | LC001706338 | 2020-05-20 | Canceled | Harrisonville |
| Arch Surgical Partners, LLC | — | LC001509279 | 2016-10-03 | Active | Chesterfield |
| Arch Taekwondo LLC | — | LC0907949 | 2008-07-17 | Active | Clayton |
| Arch Talents LLC | — | LC001416815 | 2014-08-25 | Active | Saint Charles |
| Arch Tax Company, Inc. | — | 001645472 | 2023-01-17 | Active | Cape Girardeau |
| Arch Tax Service, LLC | — | LC001466154 | 2015-10-27 | Active | CAPE GIRARDEAU |
| Arch Tech Innovations ATI LLC | — | LC001481445 | 2016-02-28 | Active | St Louis |
| Arch Technical and Business Development Advisors LLC | — | LC1372176 | 2014-01-27 | Active | OFallon |
| Arch Technologies, LLC | — | LC001416843 | 2014-08-26 | Active | Saint Louis |
| Arch Technology Group, LLC | — | LC001448610 | 2015-05-27 | Canceled | St. Louis |
| Arch Technology Investors LLC | — | LC0541766 | 2003-09-17 | Canceled | Jefferson City |
| Arch Timber, LLC | — | LC1779944 | 2021-04-17 | Active | Ballwin |
| Arch Title Corporation | — | 00717194 | 2006-02-14 | Active | Saint Louis |
| Arch Towing Services, LLC | — | LC0771552 | 2006-10-18 | Canceled | St. Louis |
| Arch Towing and Recovery Inc. | — | 00686753 | 2005-09-21 | Dissolved | Wellston |
| Arch Trailer Financing, Inc. | — | 00462324 | 1998-11-10 | Merged | ST. LOUIS |
| Arch Transit LLC | Transportation and warehousing | LC001547188 | 2017-07-13 | Active | Defiance |
| Arch Transport Holdings, LLC | — | LC001709436 | 2020-06-05 | Active | Saint Louis |
| Arch Transport L.L.C. | — | LC0937801 | 2008-12-29 | Active | Saint Louis |
| Arch Travel Services, LLC | — | LC1773375 | 2021-03-24 | Active | Saint Louis |
| Arch Travel and Technology LLC | — | LC001500359 | 2016-07-22 | Active | St. Louis |
| Arch U.S. MI Services Inc. | — | F001320575 | 2014-09-23 | Active | JEFFERSON CITY |
| Arch Uno, LLC | — | LC0837621 | 2007-08-21 | Active | Saint Louis |
| Arch Up Properties, LLC | — | LC1293373 | 2013-02-22 | Active | Webster Groves |
| Arch Vape LLC | — | LC001666874 | 2019-09-09 | Active | St. Louis |
| Arch Vending LLC | — | LC014401776 | 2022-08-27 | Active | Saint Louis |
| Arch View Land, LLC | — | LC1121225 | 2011-02-23 | Active | Ferguson |
| Arch View Properties, LLC | — | LC1244504 | 2012-07-25 | Canceled | Clayton |
| Arch View Specialties LLC | — | LC0986382 | 2009-08-05 | Active | Saint Louis |
| Arch View Trucking LLC | — | LC001574046 | 2018-01-29 | Active | Saint Louis |
| Arch Vintage, LLC | — | LC1324140 | 2013-06-27 | Active | Wildwood |
| Arch Wave Music LLC | — | LC001700553 | 2020-04-20 | Active | Harrisonville |
| Arch Way Consumer Directed Services, LLC | — | LC001413895 | 2014-07-28 | Active | Maryland Heights |
| Arch Way In-Home Services, Inc. | — | 00917381 | 2008-09-02 | Dissolved | St Louis |
| Arch Way MFS LLC | — | LC0989777 | 2009-08-17 | Canceled | St. Louis |
| Arch Wealth Advisors, LLC | — | LC001665557 | 2019-08-30 | Active | Saint Louis |