| American Long Lines, Inc. | — | 000121207 | 2001-11-08 | Revoked | FAIRPORT |
| American Lung Association | Other services | 001674776 | 2017-06-16 | Active | CHICAGO |
| American Lung Association of Rhode Island, Inc. **MERGED INTO AN ENTITY NOT QUALIFIED IN RI: AMERICAN LUNG ASSOCIATION OF NEW ENGLAND, INC. (CT)** | — | 000032135 | 1907-09-30 | Merged | PROVIDENCE |
| American Lung Association of the Northeast, Inc. | — | 000229022 | 2007-09-11 | Revoked | PROVIDENCE |
| American Maintenance and Repair Services, Inc. | — | 000038684 | 1986-05-13 | Revoked | |
| American Management Advisors, Inc. | Finance and insurance | 001657951 | 2015-11-05 | Revoked | FAIRLESS HILLS |
| American Management Association International | — | 000163952 | 2007-05-15 | Withdrawn | WARWICK |
| American Management Services, Inc. | Professional services | 000057182 | 1989-08-04 | Revoked | ORLANDO |
| American Marinas, LLC | — | 000149726 | 2005-08-01 | Revoked | PORTSMOUTH |
| American Marketing Association Southeast New England (AMASNE) | — | 000742469 | 2011-12-01 | Revoked | PROVIDENCE |
| American Marketing Company, Inc. | Wholesale trade | 000487506 | 2008-11-25 | Active | LINCOLN |
| American Martial Arts & Cardio Kickboxing, Inc. | Educational services | 000123903 | 2002-04-01 | Active | GREENVILLE |
| American Masonry Inc | — | 001676450 | 2017-08-18 | | |
| American Masonry, Inc. | — | 000000910 | 1977-01-04 | Revoked | |
| American Master Group, Inc | — | 000143867 | 2004-11-17 | Revoked | CRANSTON |
| American Mattress Centers, Inc. | — | 000121760 | 2001-12-17 | Revoked | DURHAM |
| American Mechanical Incorporated | — | 000035654 | 1985-08-27 | Revoked | GREENVILLE |
| American Medical Alert Corp. | Administrative and waste services | 000797511 | 2013-03-20 | Active | LONG ISLAND CITY |
| American Medical Design, Inc. | — | 000054010 | 1989-02-10 | Revoked | |
| American Medical Electronics, Inc.**TO DO BUSINESS UNDER FICTITIOUS NAME ONLY OF: AmMedElec, Inc.** | — | 000071626 | 1993-03-09 | Revoked | RICHARDSON |
| American Medical Enterprise Association, Inc. | — | 000164822 | 2007-06-18 | Revoked | WASHINGTON |
| American Medical Evaluation, Inc. | — | 000097157 | 1997-10-14 | Revoked | MARLBORO |
| American Medical Response of Massachusetts, Inc. | Health care and social assistance | 000067910 | 1992-01-07 | Revoked | GREENWOOD VILLAGE |
| American Medical Supply Company, Inc. | — | 000064029 | 1991-04-19 | Revoked | |
| American Medical Systems, Inc. | — | 000103296 | 1998-11-04 | Revoked | MINNETONKA |
| American Merchandising Specialists, Inc. | Administrative and waste services | 000157156 | 2006-07-10 | Active | MOORESVILLE |
| American Messaging (AM), Inc. | — | 000149204 | 2005-07-12 | Withdrawn | LEWISVILLE |
| American Messaging Service, Inc.**REVOKED FOR INSUFFICIENT FUNDS** | — | 000084261 | 1995-05-08 | Revoked | |
| American Metal Products, Inc. | — | 000000911 | 1969-03-21 | Revoked | PROVIDENCE |
| American Metals, LLC | Manufacturing | 001733475 | 2021-12-22 | Active | CRANSTON |
| American Microsensor, LLC | — | 000137309 | 2004-01-12 | Revoked | WARWICK |
| American Middle East Export, Ltd. | — | 000060678 | 1990-06-04 | Revoked | |
| American Millwright, Inc. | — | 000082987 | 1995-01-18 | Revoked | |
| American Mobile Homes, Inc | Manufacturing | 001676876 | 2017-09-01 | Active | WEYMOUTH |
| American Mobile Lube, Inc. | — | 000083536 | 1995-03-21 | Dissolved | EAST PROVIDENCE |
| American Mobile Messaging, Inc. | — | 000149613 | 2005-07-28 | Withdrawn | LRWISVILLE |
| American Mobile Metal Recycling Inc. | — | 000787960 | 2012-02-15 | Revoked | WOONSOCKET |
| American Mobile Mix Concrete, Inc. | Construction | 000161430 | 2007-01-31 | Active | COVENTRY |
| American Modular Financial, LP | — | 000140954 | 2004-06-17 | Canceled | CHARLOTTE |
| American Modular Technologies, L.L.C. | — | 000085741 | 1995-08-18 | Revoked | LIBERTY |
| American Mohawk Erectors & Riggers, Inc. | — | 000046929 | 1988-05-04 | Revoked | |
| American Money Centers, Inc. | — | 000072063 | 1993-04-12 | Revoked | WARWICK |
| American Mongrel Limited Liability Company | — | 001722597 | 2021-04-21 | Revoked | BARRINGTON |
| American Mortgage & Financial Services, Inc. | — | 000095324 | 1997-05-27 | Revoked | ATLANTA |
| American Mortgage Bankers, Corp. | — | 000045342 | 1987-12-29 | Revoked | PROVIDENCE |
| American Mortgage Company of America | — | 000000913 | 1958-03-05 | Dissolved | PROVIDENCE |
| American Mortgage Funding Corporation | — | 000107410 | 1999-07-12 | Revoked | PORTLAND |
| American Mortgage Funding Group, Inc. | — | 000153049 | 2006-01-20 | Withdrawn | BROOKLINE |
| American Mortgage Holdings LLC | — | 000484501 | 2008-07-11 | | |
| American Mortgage Network, Inc. | Finance and insurance | 000119886 | 2001-08-15 | Withdrawn | SAN DIEGO |