| 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| AMERICAN CULTURAL EXCHANGE | — | 000747714 | 2011-12-19 | Withdrawn | KINGSTON |
| 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 CUSTOM EMBROIDERY, INC. | — | 000059775 | 1990-03-22 | Revoked | — |
| AMERICAN CUSTOM HOMES, LLC | — | 000486850 | 2008-10-23 | Revoked | WAKEFIELD |
| AMERICAN CUSTOM KITCHENS, INC. | — | 000000871 | 1968-02-23 | Revoked | — |
| AMERICAN CYBER CORPORATION | — | 000083821 | 1995-03-24 | Revoked | MAHTOMEDI |
| AMERICAN CYBERNETIC CORPORATION | — | 000101393 | 1998-07-08 | Revoked | — |
| AMERICAN CYCLE FINANCE, INC | Finance and insurance | 001684352 | 2015-08-03 | Withdrawn | MARLBOROUGH |
| 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 DATA RESOURCES, LTD. | — | 000000872 | 1981-05-06 | Revoked | — |
| AMERICAN DEALER SERVICES, INC. | — | 000000873 | 1979-08-20 | Suspended | — |
| AMERICAN DEBT COLLECTION COMPANY, LLC | — | 000139706 | 2004-04-26 | Revoked | OXFORD |
| 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 DEBT SOLUTIONS, INC. | — | 000136933 | 2004-01-06 | Withdrawn | BOCA RATON |
| American Decal & Mfg. Co. | — | 001722672 | 1984-10-24 | — | — |
| AMERICAN DEER PROOFING, INC. | — | 000158474 | 2006-09-12 | Active | WEST KINGSTON |
| AMERICAN DENTAL PROFESSIONAL SERVICES, LLC | Health care and social assistance | 000149214 | 2005-07-11 | Revoked | EFFINGHAM |
| 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 DEWATERING CORPORATION | — | 001722671 | 1972-02-28 | Merged | — |
| American Dexan International Incorporated | — | 000039974 | 1986-09-05 | Revoked | — |
| American DG Energy Inc. | Utilities | 000560669 | 2010-11-24 | Active | WALTHAM |
| AMERICAN DIABETES ASSOCIATION | Other services | 000101041 | 1998-06-11 | Active | ARLINGTON |
| 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 DIAL TONE, INC. | — | 000526067 | 2010-01-26 | Revoked | MELBOURNE |
| AMERICAN DIGITAL TECHNOLOGIES, INC | Real estate and leasing | 001063598 | 2015-02-16 | Revoked | CENTRAL FALLS |
| AMERICAN DINER HERITAGE, Inc. | Arts and entertainment | 000088487 | 1996-03-07 | Active | PROVIDENCE |
| AMERICAN DISCOUNT RENT-A-CAR SYSTEMS, INC. | — | 000088077 | 1996-02-08 | Revoked | CRANSTON |
| American Dispensing Systems, Inc. | — | 000000874 | 1984-06-11 | Revoked | — |
| AMERICAN DISPLAY CO. | — | 000077227 | 1946-12-23 | 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 |
| American District Telegraph Company | — | 000020028 | 1974-03-19 | Revoked | — |
| American Diversified Equity Corporation | — | 000020030 | 1983-09-07 | Revoked | — |
| American Dock & Door, LLC | Construction | 001659328 | 2016-01-05 | Active | SMITHFIELD |
| American Dragon Karate School, Inc. | Arts and entertainment | 000129812 | 2003-01-29 | Active | SAUNDERSTOWN |
| American Dream Auto Repair, Inc. | — | 001748993 | 2022-11-22 | Revoked | WARREN |
| American Dream Auto Sales and Repair LLC | Arts and entertainment | 001775417 | 2024-06-18 | Revoked | WARWICK |
| American Dream Builders | Other services | 001765885 | 2023-11-29 | Revoked | CRANSTON |