| Asimov, Inc. | Massachusetts |
| Asinex Corporation | North Carolina |
| Asio Studio | South Dakota |
| ASIS International | Virginia |
| ASIS, LLC | New Jersey |
| Asius Technologies | |
| Ask Media Group, LLC | California |
| Ask Parable, Inc. | |
| Ask Sage, Inc. | |
| AskBio, Inc. | |
| AskDegree, LLC | Nevada |
| AskGene Pharma, Inc. | |
| AskHost.com | California |
| Asklepion Pharmaceuticals, LLC | |
| AskPCExperts | Texas |
| ASL, Inc. | California |
| Aslan Interactive | Illinois |
| ASLAN Training | Georgia |
| ASM Tech Solutions | Wyoming |
| ASMGi | |
| ASNA | Texas |
| ASP.NET Core | Washington |
| Aspa Therapeutics | |
| ASPA, Inc. | Illinois |
| Aspargo Laboratories, Inc. | New Jersey |
| AspDotNetStorefront | Ohio |
| Aspect Automation | Minnesota |
| Aspect Ventures | California |
| Aspen Biosciences | California |
| Aspen Center for Physics | |
| Aspen Electronics Manufacturing, Inc. | Colorado |
| Aspen Graphics | New York |
| Aspen Institute | |
| Aspen Medical Products, LLC | California |
| Aspen Network of Development Entrepreneurs | |
| Aspen Neuroscience | California |
| Aspen Power | |
| Aspen Quantum Consulting | Maryland |
| Aspen Surgical | Michigan |
| Aspen Systems, Inc. | Arizona |
| Aspen Systems, Inc. | Colorado |
| Aspen Technologies | Arizona |
| Aspen Wireless Technologies, Inc. | Michigan |
| AspenCore, Inc. | Massachusetts |
| AspenDigital | |
| AspenTech | Massachusetts |
| AspenTech Consulting Group, Inc. | Michigan |
| Aspenware | Colorado |
| Aspex Corporation | Colorado |
| AspGrid.com | New York |