| Aphios Corp. | Woburn, Massachusetts, United States |
| ApoLife Inc. | Detroit, Michigan, United States |
| Applied Biosystems | Foster City, California, United States |
| Applied Digital Solutions Inc. | Palm Beach, Florida, United States |
| Applied Materials | Santa Clara, California, United States |
| Applied MEMS Inc. | Stafford, Texas, United States |
| Applied Microengineering Ltd. | Didcot, United Kingdom |
| Applied MicroStructures | San Jose, California, United States |
| Applied Microstructures, Inc. | San Jose, California, United States |
| Applied Molecular Evolution Inc. | San Diego, California, United States |