| ADVANCED TECHNICAL SERVICES, L.L.C. | — | 0000031791 | 1998-03-16 | Active | IDAHO FALLS |
| ADVANCED TECHNIQUES, INC. | — | 0000284120 | 1990-02-20 | Suspended | — |
| ADVANCED TECHNOLOGIES AND INSTALLATION CORPORATION | — | 0000490997 | 2005-08-01 | Withdrawn | RICHARDSON |
| ADVANCED TECHNOLOGIES AND LABORATORIES (ATL) INTERNATIONAL, INC. | — | 0000609548 | 2014-05-12 | Revoked | GAITHERSBURG |
| ADVANCED TECHNOLOGIES CONTRACTORS CORP. | — | 0000630770 | 2017-03-22 | Dissolved | — |
| ADVANCED TECHNOLOGIES LLC | — | 0005209843 | 2023-04-24 | Dissolved | BOISE |
| ADVANCED TECHNOLOGIES PNW LLC | — | 0000071834 | 2002-05-23 | Dissolved | NILES |
| ADVANCED TECHNOLOGIES, INC. | — | 0000415678 | 2000-10-31 | Dissolved | — |
| ADVANCED TECHNOLOGY CONSTRUCTION CORPORATION | — | 0000454761 | 2003-06-03 | Active | TACOMA |
| ADVANCED TECHNOLOGY CONSTRUCTION LLC | — | 0000047201 | 2000-01-26 | Canceled | RENTON |
| ADVANCED TECHNOLOGY CONTRACTING, LLC | — | 0000470943 | 2015-08-12 | Dissolved | HAYDEN |
| ADVANCED TECHNOLOGY FEASIBILITY GROUP, L.L.C. | — | 0000121563 | 2005-02-01 | Dissolved | BOISE |
| Advanced Technology Group, Inc. | — | 0006495264 | 2025-10-21 | Active | HILLSBORO |
| ADVANCED TECHNOLOGY GROUP, INC. | — | 0000398352 | 1999-08-30 | Revoked | HILLSBORO |
| ADVANCED TECHNOLOGY LABORATORIES, INC. | — | 0000288916 | 1990-08-22 | Withdrawn | NEW YORK |
| ADVANCED TECHNOLOGY MANAGEMENT, INC. | — | 0000454702 | 2003-06-02 | Dissolved | — |
| ADVANCED TECHNOLOGY MARKETING, INC. | — | 0000251317 | 1986-01-24 | Active | — |
| Advanced Technology Matrix United Corporation | — | 0006626970 | 2026-01-27 | Active | PHOENIX |
| Advanced Technology Solutions, Inc. | — | 0003569982 | 2019-07-15 | Withdrawn | OAKHURST |
| ADVANCED TECHNOLOGY SOLUTIONS, INC. | — | 0000501579 | 2006-03-01 | Dissolved | — |
| ADVANCED TECHNOLOGY SYSTEMS, INC. | — | 0000361071 | 1996-12-19 | Dissolved | — |
| ADVANCED TECHNOLOGY, INC. | — | 0000448682 | 2003-01-28 | Dissolved | — |
| ADVANCED TELCOM, INC. | — | 0000451917 | 2003-04-03 | Withdrawn | MINNEAPOLIS |
| ADVANCED TELCOM, INC. | — | 0000384564 | 1998-09-08 | Revoked | SANTA ROSA |
| ADVANCED TELECOMMUNICATIONS CORPORATION | — | 0000295691 | 1991-05-28 | Withdrawn | JACKSON |
| ADVANCED TELEMANAGEMENT GROUP, INC. | — | 0000453016 | 2003-04-25 | Revoked | OKLAHOMA |
| ADVANCED TELEMETRY LLC | — | 0000492318 | 2016-02-12 | Dissolved | COEUR D'ALENE |
| Advanced Telemetry Systems, Inc. | — | 0005654650 | 2024-03-20 | Revoked | ISANTI |
| ADVANCED TERRAIN DESIGN, INC. | — | 0000611295 | 2014-07-15 | Active | — |
| Advanced Terrain Modeling LLC | — | 0006116469 | 2025-02-21 | Active | POST FALLS |
| ADVANCED THERAPEUTIC INTERVENTIONS PA | — | 0000487148 | 2005-05-11 | Dissolved | — |
| ADVANCED THERAPEUTIC SERVICES, LLC | — | 0000129401 | 2005-05-04 | Active | AMMON |
| ADVANCED THERAPY CARE PLLC | — | 0000211542 | 2007-09-20 | Dissolved | MOUNTAIN HOME |
| ADVANCED THERMOPLASTIC COMPOSITES, INC. | — | C204220 | 2014-11-28 | Merged | POST FALLS |
| ADVANCED THERMOPLASTIC COMPOSITES, LLC | — | 0000565308 | 2017-08-03 | Active | COEUR D'ALENE |
| ADVANCED THERMOVOLTAIC SYSTEMS, CORP. | — | 0006612734 | 2026-01-13 | Active | LOVELAND |
| Advanced Tile llc | — | 0005570255 | 2024-01-24 | Active | TWIN FALLS |
| ADVANCED TILE SERVICES, LLC | — | 0000199210 | 2007-05-15 | Dissolved | MERIDIAN |
| Advanced Tile, Marble & Granite, Inc. | — | 0005286401 | 2023-06-16 | Withdrawn | KENT |
| ADVANCED TITLE LOANS LLC | — | 0000389410 | 2013-07-12 | Dissolved | MERIDIAN |
| ADVANCED TOKEN, INC., A LIMITED LIABILITY COMPANY | — | 0000000067 | 1993-07-13 | Canceled | TWIN FALLS |
| ADVANCED TOWING & RECOVERY SPECIALISTS, INC. | — | 0000428313 | 2001-08-29 | Dissolved | — |
| Advanced Towing and Recovery LLC | — | 0005931181 | 2024-10-07 | Active | GARDEN CITY |
| ADVANCED TOXICOLOGY SERVICES, LLC | — | 0000540261 | 2017-02-27 | Revoked | HAYDEN |
| ADVANCED TRAFFIC PRODUCTS, INC. | — | 0000320478 | 1993-10-20 | Active | EVERETT |
| ADVANCED TRAINING SOLUTIONS INCORPORATED | — | 0000449754 | 2003-02-19 | Dissolved | — |
| ADVANCED TRANSFUSION SERVICES, INC. | — | 0000452605 | 2003-04-16 | Withdrawn | SPOKANE |
| ADVANCED TRANSFUSION SERVICES, L.L.C. | — | 0000393844 | 2013-08-30 | Revoked | CENTENNIAL |
| ADVANCED TRANSFUSION SERVICES, L.L.C. | — | 0006296557 | 2025-06-05 | Active | HOPKINTON |
| ADVANCED TRANSMISSION AND DRIVE TRAIN SERVICE LLC | — | 0000380207 | 2013-04-08 | Active | GARDEN CITY |