| American Collision, Inc. | — | 000099424 | 1998-03-05 | Revoked | PROVIDENCE |
| American Colonials | Other services | 001738714 | 2022-04-11 | Active | PASCOAG |
| American Color Graphics, Inc. | — | 000149949 | 2005-08-15 | Withdrawn | BALTIMORE |
| American Commercial Securities Corporation | — | 000020011 | 1983-12-21 | Revoked | |
| American Commonwealth Management Services Company,Inc. | — | 000039442 | 1986-07-16 | Revoked | HERSHEY |
| American Communications Group, Inc. | Other services | 000858905 | 2013-11-12 | Revoked | TORRANCE |
| American Compliance Center, Corp. | — | 000033057 | 1985-01-16 | Revoked | CRANSTON |
| American Computer Technologies, Ltd. | — | 000080655 | 1994-07-27 | Revoked | PORTSMOUTH |
| American Concept Insurance Company | — | 000096170 | 1997-08-01 | Active | |
| American Concrete Corp. | — | 000032324 | 1982-03-05 | Revoked | |
| American Constitution Committee | — | 000042077 | 1987-03-04 | Revoked | |
| American Construction & Excavating LLC | Construction | 001778409 | 2024-08-28 | Active | GREENWOOD |
| American Construction Corporation | Construction | 000799485 | 2013-06-03 | Active | PEABODY |
| American Construction Trades Corporation | Administrative and waste services | 001042048 | 2015-01-15 | Active | PROVIDENCE |
| American Consumer Alliance, Inc. | — | 000080967 | 1994-08-22 | Revoked | ATLANTA |
| American Consumer Council | — | 001698547 | 2019-07-30 | Revoked | SAN DIEGO |
| American Container Service, Inc. | — | 000000870 | 1983-01-05 | Revoked | |
| American Contract Management LLC | — | 000792952 | 2012-09-06 | Revoked | WOONSOCKET |
| American Contractors Corp. | — | 000448372 | 2008-06-24 | Revoked | RANDOLPH |
| American Copper Sponge Company | — | 001706476 | 1952-11-03 | Merged | |
| American Cord & Webbing Co., Inc. | — | 000020015 | 1951-09-12 | Withdrawn | |
| American Corrections Maintenance, Inc. | Construction | 001785670 | 2025-02-12 | Active | WEST POINT |
| American Counter Surfaces, LLC | — | 000125173 | 2002-06-06 | Dissolved | PAWTUCKET |
| American Countertop Inc. | — | 000108958 | 1999-10-25 | Revoked | |
| American Craftsman, Inc. | — | 000038921 | 1986-06-02 | Revoked | |
| American Credit Services, LLC | — | 000912507 | 2014-04-02 | Revoked | CHEYENNE |
| American Cruise Lines, Inc. | — | 000020018 | 1983-02-18 | Revoked | |
| American Culinary Federation, Incorporated - Rhode Island Chapter | — | 000026298 | 1977-01-20 | Merged | SAUNDERSTOWN |
| American Culinary Federation, Incorporated - Rhode Island Chapter | Other services | 001660733 | 2016-02-23 | Active | CRANSTON |
| American Current Care, P.A. | Health care and social assistance | 000293951 | 2007-12-27 | Active | ADDISON |
| American Custom Compounding Pharmacy LLC | — | 000892371 | 2014-01-24 | Revoked | DALLAS |
| American DG Energy Inc. | Utilities | 000560669 | 2010-11-24 | Active | WALTHAM |
| American Dairy Queen Corporation | — | 000792097 | 2012-07-31 | Active | BLOOMINGTON |
| American Dairy Queen Corporation | — | 000791234 | 2012-06-21 | | |
| American Damage Appraisal, LLC | — | 000131868 | 2003-05-02 | Revoked | NORTH PROVIDENCE |
| American Debt Counseling, Inc. | — | 000156836 | 2006-06-23 | Revoked | PROVIDENCE |
| American Debt Relief, LLC | Professional services | 001798735 | 2025-11-04 | Active | PLANO |
| American Debt Services, L.L.C. | — | 000487189 | 2008-11-10 | Revoked | EDINA |
| American Decal & Mfg. Co. | — | 001722672 | 1984-10-24 | | |
| American Design Build LLC | — | 000558199 | 2010-11-13 | Revoked | REHOBOTH |
| American Design Build LLC | Construction | 001769934 | 2024-02-26 | Active | WEST GREENWICH |
| American Desk Manufacturing Company | — | 000020023 | 1982-09-28 | Revoked | |
| American Desk Manufacturing Company | — | 000043300 | 1987-06-05 | Revoked | TEMPLE |
| American Dexan International Incorporated | — | 000039974 | 1986-09-05 | Revoked | |
| American Diagnostics Services, Inc. | Health care and social assistance | 000170515 | 2007-07-30 | Merged | SPARKS |
| American Diagnostics Services, LLC | Health care and social assistance | 001708198 | 2007-07-30 | Revoked | SPARKS |
| American Dispensing Systems, Inc. | — | 000000874 | 1984-06-11 | Revoked | |
| American Display Components, Inc. | — | 000040316 | 1986-10-06 | Revoked | |
| American Display, Inc. | — | 000246665 | 2007-09-19 | Expired | |
| American Disposal Services of Missouri, Inc. | — | 000091326 | 1996-09-05 | Withdrawn | PHOENIX |