| Atlan Inc. | — | 001812374 | 2026-07-08 | Active | WILMINGTON |
| Atlan-Tol International, Inc. | — | 000001491 | 1984-01-25 | Dissolved | |
| Atlanta Associates Phase III | — | 000078715 | 1973-12-31 | Revoked | PROVIDENCE |
| Atlanta Life General Agency, Inc. | Finance and insurance | 001784795 | 2025-01-27 | Active | ATLANTA |
| Atlanta Trading & Eng. Consulting LLC | Construction | 001749822 | 2022-12-14 | Revoked | PARSIPPANY |
| Atlanta's Reliable Roofing Co. | Construction | 000135656 | 2003-10-23 | Active | PEACHTREE CORNERS |
| Atlantean Project Limited | — | 000080131 | 1994-06-20 | Revoked | |
| Atlantech Technical Sales Corporation | Professional services | 000094229 | 1997-03-21 | Dissolved | SAUNDERSTOWN |
| AtlantiCare Marine, LLC | — | 000149058 | 2005-06-28 | Revoked | |
| AtlantiVacations Inc | Administrative and waste services | 001676545 | 2017-08-22 | Active | BRISTOL |
| Atlantic Abatement & Construction, Inc. | Administrative and waste services | 000797417 | 2013-03-18 | Revoked | LAS VEGAS |
| Atlantic Abatement Corporation | Administrative and waste services | 001694079 | 2019-03-19 | Active | GREENVILLE |
| Atlantic Acquisitions Inc | — | 001723615 | 2021-05-07 | Revoked | MANHATTAN |
| Atlantic Affiliates Title, LLC | — | 000787608 | 2012-02-01 | Revoked | NEEDHAM |
| Atlantic Agriculture Supply LLC | — | 001700668 | 2019-10-07 | Revoked | WARREN |
| Atlantic Airline Services, Inc. | — | 000162606 | 2007-03-21 | Revoked | EAST PROVIDENCE |
| Atlantic All Risk Insurance Brokerage, LP | — | 001761762 | 2023-08-16 | Canceled | WINTER GARDEN |
| Atlantic American Partners, LLC | — | 000117660 | 2001-04-03 | Revoked | EAST GREENWICH |
| Atlantic American Rocky Point Partners, LLC | — | 000314341 | 2008-03-14 | Revoked | TAMPA |
| Atlantic Anesthesia Consultants, Inc. | — | 000058093 | 1989-11-06 | Revoked | PAWTUCKET |
| Atlantic Anesthesia, LLC | Health care and social assistance | 001766093 | 2023-12-04 | Dissolved | PROVIDENCE |
| Atlantic Apron Inc. | — | 000007750 | 1984-10-03 | Revoked | |
| Atlantic Aquaculture, LLC | Wholesale trade | 000145285 | 2005-01-20 | Revoked | WARREN |
| Atlantic Arc Group, LLC | — | 001808375 | 2026-04-29 | Active | PAWTUCKET |
| Atlantic Architecture LLC | Professional services | 001782996 | 2024-12-18 | Active | DAVENPORT |
| Atlantic Arts Museum, Inc. | Arts and entertainment | 000548150 | 2010-08-17 | Active | WALNUT CREEK |
| Atlantic Associates, Inc. | — | 001037268 | 2015-01-12 | Revoked | WEST ROXBURY |
| Atlantic Associates, Inc. | — | 000001498 | 1979-08-20 | Revoked | |
| Atlantic Associates, L.P. | Real estate and leasing | 000083447 | 1995-03-09 | Active | JOHNSTON |
| Atlantic Assurance LLC | — | 000103345 | 1998-11-06 | Revoked | CHARLOTTE |
| Atlantic Assurance of Virginia, LLC | — | 000119953 | 2001-08-17 | Canceled | WILMINGTON |
| Atlantic Attic, LLC | Retail trade | 001751038 | 2023-01-11 | Active | JAMESTOWN |
| Atlantic Auto Body Inc. | — | 000065679 | 1991-10-03 | Revoked | |
| Atlantic Auto Electric, Inc. | — | 000035958 | 1985-09-23 | Revoked | |
| Atlantic Auto Rentals, LLC | — | 001679788 | 2017-12-20 | Revoked | CRANSTON |
| Atlantic Auto Sales, Inc. | — | 000001499 | 1967-08-18 | Revoked | |
| Atlantic Autocenter, LLC | Retail trade | 000104565 | 1999-01-25 | Active | CRANSTON |
| Atlantic Ave Cruisers LLC | — | 001812786 | 2026-07-18 | Active | CHARLESTOWN |
| Atlantic Avenue Mortgage, LLC | — | 001801978 | 2026-01-08 | Active | LAKE WORTH BEACH |
| Atlantic Axe Throw, LLC | — | 001722310 | 2021-04-15 | Dissolved | WEST WARWICK |
| Atlantic Baking Company LLC | — | 000101416 | 1998-07-07 | Revoked | |
| Atlantic Bass Academy, LLC | — | 001814964 | 2026-08-24 | Active | WARWICK |
| Atlantic Bay Contracting Co., Inc. | — | 000787615 | 2012-02-01 | Revoked | ALLSTON |
| Atlantic Bay Mortgage Group, L.L.C. | Finance and insurance | 001669872 | 2017-01-10 | Canceled | VIRGINIA BEACH |
| Atlantic Beverage Distributors, Inc. | — | 000077262 | 1982-12-21 | Suspended | |
| Atlantic BioHarvest LLC | — | 001806082 | 2026-03-21 | Active | NORTH SMITHFIELD |
| Atlantic Bridge & Engineering, Inc. | Construction | 000795626 | 2013-01-07 | Active | HAMPTON |
| Atlantic Brightstar, Corp. | — | 000042780 | 1987-04-29 | Revoked | |
| Atlantic Broom Service, Inc. | — | 000020615 | 1973-08-21 | Revoked | HYDE PARK |
| Atlantic Building & Remodeling, LLC | — | 000157807 | 2006-07-31 | Revoked | MIDDLETOWN |