| Company | Location |
|---|---|
| Assay Designs Inc. | Ann Arbor, Michigan, United States |
| Asterand Inc. | Detroit, Michigan, United States |
| Asylum Research | Santa Barbara, California, United States |
| ASYST Technologies LLC | Kenosha, Wisconsin, United States |
| Atherotech Inc. | Birmingham, Alabama, United States |
| Athey Technologies | El Cerrito, California, United States |
| ATK/GASL | Ronkonkoma, New York, United States |
| Atlantic Canada Opportunities Agency | Moncton, New Brunswick, Canada |
| Atlantic International Products & Services Inc. | Rio Rancho, New Mexico, United States |
| Atlas Venture Partners | Waltham, Massachusetts, United States |
