| ATLANTIC CONTRACTING SERVICES, LLC | 371153 | 2020-04-30 | Inactive | Mount Pleasant |
| ATLANTIC CONTRACTING, INC. DBA ATLANTIC PAINTING | 125213 | 2004-03-17 | Dissolved | MANCHESTER CTR |
| ATLANTIC CORPORATION | 384693 | 2021-02-22 | Revoked | Waterville |
| ATLANTIC CORPORATION OF WILMINGTON INC. | 420280 | 2023-01-01 | Active | Wilmington |
| ATLANTIC DATA SERVICES, INC. | 281045 | 2013-07-19 | Inactive | N FALMOUTH |
| ATLANTIC DETROIT DIESEL ALLISON, INC. | 65731 | 1995-02-24 | Inactive | LODI |
| ATLANTIC DETROIT DIESEL ALLISON, LLC | 4159 | 1999-01-18 | Inactive | LODI |
| ATLANTIC DIVING SUPPLY, INC. | 92542 | 2012-03-05 | Revoked | VIRGINIA BEACH |
| ATLANTIC ENGINEERING GROUP, INC. | 86066 | 2008-08-28 | Revoked | BRASELTON |
| ATLANTIC ENVELOPE COMPANY LLC | 18702 | 2004-07-26 | Inactive | SMYRNA |
| ATLANTIC EXPRESS, INC. | 53096 | 1982-12-03 | Revoked | DOVER |
| ATLANTIC FABRICATION, INC. | 80086 | 2005-01-28 | Inactive | WESTWOOD |
| ATLANTIC FIRE SPRINKLER, INC. | 117781 | 1998-04-08 | Suspended | bennington |
| ATLANTIC FISHING INFORMATION INC. | 116394 | 1997-03-27 | Revoked | — |
| ATLANTIC FLUID POWER, INC. | 404302 | 2022-02-23 | Active | Shirley |
| Atlantic Fox Technologies, Inc. | 0419238 | 2022-11-28 | Expired | East Northport |
| Atlantic Fox Technologies, Inc. | 0420703 | 2023-01-02 | Active | East Northport |
| ATLANTIC FUELS MARKETING CORPORATION | 49374 | 1976-08-26 | Inactive | WILMINGTON |
| ATLANTIC GROUP, INC. THE | 61690 | 1990-09-24 | Active | Philadelphia |
| ATLANTIC HOME LOANS, INC. | 380212 | 2020-11-18 | Inactive | Parsippany |
| ATLANTIC HOME MORTGAGE LLC | 403793 | 2022-02-14 | Suspended | Shelburne |
| ATLANTIC INDEMNITY COMPANY | 106642 | 1991-02-19 | Dissolved | BURLINGTON |
| ATLANTIC INVESTMENT SERVICES GROUP, INC. | 96330 | 1985-07-12 | Revoked | FERRISBURG |
| ATLANTIC INVESTORS CORPORATION | 97963 | 1986-06-18 | Dissolved | BURLINGTON |
| ATLANTIC KINESCOPE, INC. | 96716 | 1985-10-10 | Revoked | — |
| ATLANTIC LINING CO., INC. | 85613 | 2008-06-20 | Suspended | Eastampton |
| ATLANTIC LINK, LLC | 4697 | 2006-08-08 | Revoked | SO BURLINGTON |
| ATLANTIC LODGING & RESTAURANT BROKERS OF NEW HAMPSHIRE, INC. | 59499 | 1988-03-21 | Revoked | BURLINGTON |
| ATLANTIC MANAGEMENT ASSOCIATES, INC. | 71645 | 2000-03-20 | Revoked | LYNNFIELD |
| ATLANTIC MANAGEMENT CENTER, INC. | 283856 | 2013-12-23 | Inactive | ALEXANDRIA |
| ATLANTIC MEDICAL, LLC | 292522 | 2014-06-16 | Revoked | HERNANDO |
| ATLANTIC METROPOLITAN CORPORATION | 52288 | 1981-12-22 | Inactive | WILMINGTON |
| ATLANTIC MOBILE US LLC | 433105 | 2023-08-10 | Canceled | Wilmington |
| ATLANTIC MORTGAGE CORPORATION | 117505 | 1998-01-20 | Revoked | WAITSFIELD |
| ATLANTIC NORTH AIRLINES CORP. | 109387 | 1992-12-09 | Revoked | RUTLAND |
| ATLANTIC NORTH CASUALTY COMPANY | 111698 | 1994-05-02 | Dissolved | — |
| ATLANTIC OIL CORPORATION | 54270 | 1983-12-30 | Inactive | WILMINGTON |
| ATLANTIC ORIENT CORPORATION | 95850 | 1985-04-12 | Revoked | — |
| ATLANTIC ORIENT CORPORATION | 66785 | 1996-02-07 | Revoked | NORWICH |
| ATLANTIC PAINTING CO. | 108945 | 1992-08-12 | Dissolved | MANCHESTER CTR |
| ATLANTIC PARTNERS, LLC | 993 | 2005-04-12 | Revoked | DORSET |
| ATLANTIC PAVEMENT MARKING, INC. | 357480 | 2019-05-15 | Inactive | Prospect |
| ATLANTIC PAYMENT SYSTEMS, LLC | 9268 | 1999-09-16 | Revoked | NISKAYUNA |
| ATLANTIC PLANT MAINTENANCE, INC. | 50212 | 1978-07-31 | Active | Pasadena |
| ATLANTIC PLYWOOD CORPORATION | 60689 | 1989-06-29 | Active | Woburn |
| ATLANTIC POWER SERVICES, LLC | 301603 | 2015-03-25 | Revoked | BOSTON |
| ATLANTIC PRESCRIPTION SERVICE LLC | 17211 | 2006-04-10 | Inactive | Schaumburg |
| ATLANTIC PROJECTS COMPANY, INC. | 85873 | 2008-07-30 | Revoked | SCHENECTADY |
| ATLANTIC RECOVERY SOLUTIONS, LLC | 307372 | 2015-09-16 | Active | Getzville |
| ATLANTIC REFINING & MARKETING CORP. | 58072 | 1987-03-12 | Inactive | Newtown Square |