| Advanced Scientific Applications, Inc. | California |
| Advanced Search Engine Marketing Consultants, LLC | Vermont |
| Advanced Semiconductor, Inc. | California |
| Advanced Sensor Technologies, Inc. | California |
| Advanced Simulation Research, Inc. | Florida |
| Advanced Simulation Technology, Inc. | Virginia |
| Advanced Software Concepts International, Inc.. | New York |
| Advanced Software Designs | Missouri |
| Advanced Software Products | California |
| Advanced Software Products Group, Inc. | Florida |
| Advanced Solutions and Consulting | California |
| Advanced Solutions International | Virginia |
| Advanced Solutions, Inc. | Virginia |
| Advanced Solutions, Inc. | Arkansas |
| Advanced Specialties Electronics | New Jersey |
| Advanced Sterilization Products | California |
| Advanced Strategies, Inc. | Georgia |
| Advanced Stream | Washington |
| Advanced Surgical Retractor Systems, Inc. | |
| Advanced System Services, Inc. | Wisconsin |
| Advanced Systems | Virginia |
| Advanced Systems & Designs | Michigan |
| Advanced Systems and Products, Inc. | New Jersey |
| Advanced Systems Concepts, Inc. | New Jersey |
| Advanced Systems Design | Florida |
| Advanced Systems Development, Inc. | Virginia |
| Advanced Systems for Power Engineering, Inc. | California |
| Advanced Systems Group, Inc. | Oklahoma |
| Advanced Systems Technology, Inc. | Oklahoma |
| Advanced Systems Unlimited, LLC | Alabama |
| Advanced Targeting Systems, Inc. | California |
| Advanced Tech Enterprise | Texas |
| Advanced Tech Systems, Inc. | Illinois |
| Advanced Tech, Inc. | South Dakota |
| Advanced Technologies & Communications | New York |
| Advanced Technologies and Services, Inc. | New Jersey |
| Advanced Technology & Research Corporation | Maryland |
| Advanced Technology and Research, Inc. | Georgia |
| Advanced Technology Corporation | New Jersey |
| Advanced Technology Development Center | Georgia |
| Advanced Technology Group, Inc. | Pennsylvania |
| 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 Thermal Sciences | California |
| Advanced Threat Analytics | Texas |