| Advanced Technology Corporation | New Jersey |
| Advanced Technology Development Center | Georgia |
| Advanced Technology Group, Inc. | Pennsylvania |
| Advanced Technology Leaders, Inc. | |
| Advanced Technology Services, Inc. | Illinois |
| Advanced Technology Solutions | Pennsylvania |
| Advanced Technology Ventures | Massachusetts |
| Advanced Telecom Services | Pennsylvania |
| Advanced Telecommunications of Illinois, Inc. | Illinois |
| Advanced Telemetry Systems International, Inc. | California |
| Advanced Television Systems Committee, Inc. | District of Columbia |
| Advanced Therapies, LLC | |
| Advanced Thermal Sciences | California |
| Advanced Threat Analytics | Texas |
| Advanced Time | Michigan |
| Advanced Tower Services, LLC | New Mexico |
| Advanced Tracking Technologies, Inc. | Texas |
| Advanced TurnKey Solutions, LLC | New York |
| Advanced Visual Systems, Inc. | Massachusetts |
| Advanced Web Design | New York |
| Advanced Web Dynamics | Alaska |
| Advanced Web Site Publishing | Texas |
| Advanced Wire and Cable | Ohio |
| Advanced Wireless Communications | Minnesota |
| Advanced2000 | Virginia |
| AdvancedEPM Consulting | Colorado |
| AdvancedGroup.net | New Jersey |
| AdvancedMD, Inc. | Utah |
| AdvancedMEMS | California |
| AdvancedWare Corporation | California |
| AdvanceTEC | Virginia |
| Advancing Internet Marketing | Delaware |
| Advancing Women Executives, LLC | |
| Advancio | |
| advancis.com | Texas |
| Advans IT Services | Massachusetts |
| Advansiv | Florida |
| Advansta, Inc. | California |
| Advant Interactive | |
| Advanta | Texas |
| Advantage 360 Software, LLC | California |
| Advantage 3D Solutions | Michigan |
| Advantage Capital | Missouri |
| Advantage Communications, Inc. | Kansas |
| Advantage Computer Enterprises, Inc. | Kansas |
| Advantage Computer Solutions | Florida |
| Advantage Computing Systems, Inc. | Michigan |
| Advantage Creations | Vermont |
| Advantage Industrial Automation | North Carolina |
| Advantage Industries | Maryland |