| Company | Location |
|---|---|
| Altea Therapeutics | Tucker, Georgia, United States |
| Alteon Inc. | Ramsey, New Jersey, United States |
| AltiGen Communications | Fremont, California, United States |
| Alumina Micro | Bellingham, Washington, United States |
| ALZA Corp. | Mountain View, California, United States |
| Ambion, Inc. | Austin, Texas, United States |
| Ambios Technology Inc. | Santa Cruz, California, United States |
| Ambrit Engineering Corp. | Santa Ana, California, United States |
| American Electric Power | Columbus, Ohio, United States |
| American Elements | Los Angeles, California, United States |
