| Company | Location |
|---|---|
| Anasys Instruments Corporation | Santa Barbara, California, United States |
| Andeen-Hagerling, Inc. | Cleveland, Ohio, United States |
| Andorra Optics | Marlow, New Hampshire, United States |
| Angeleno Group | Los Angeles, California, United States |
| Angstrom Medica Inc. | Newton, Massachusetts, United States |
| Angstrom Power Inc. | North Vancouver, British Columbia, Canada |
| Angstron Materials | Dayton, Ohio, United States |
| ANKA Angstromquelle Karlsruhe GmbH | Eggenstein-Leopoldshafen, Germany |
| Anson Nanotechnology Group Co. Ltd. | Wanchai, Hong Kong, China |
| Ansys, Inc. | Canonsburg, Pennsylvania, United States |
