| Nombre | Empresa matriz | Fuente |
|---|---|---|
| 3m Health Care | USFDA | |
| 3m Health Care | USFDA | |
| 3m Health Care | USFDA | |
| 3m Health Care | USFDA | |
| 3m Health Care | USFDA | |
| 3m Health Care | USFDA | |
| 3m Imtec Corporation | 3m Company | USFDA |
| 4-Web Inc. | 4web Inc. | USFDA |
| Aadco Medical Inc. | Aadco Medical Inc. | USFDA |
| Aaren Scientific Inc. | Carl-Zeiss-Stiftung | USFDA |
| Aaren Scientific, Incorporated | Carl-Zeiss-Stiftung | USFDA |
| Aaren Scientific, Incorporated | Carl-Zeiss-Stiftung | USFDA |
| Aaren Scientific, Incorporated | Carl-Zeiss-Stiftung | USFDA |
| Aaren Scientific, Incorporated | Carl-Zeiss-Stiftung | USFDA |
| Aaren Scientific, Incorporated | Carl-Zeiss-Stiftung | USFDA |
| Aaron Medical Industries, Inc. | USFDA | |
| Aaron Medical Industries, Inc. | USFDA | |
| Abaxis Inc | Abaxis Inc | USFDA |
| Abaxis Inc | Abaxis Inc | USFDA |
| Abaxis Inc | Abaxis Inc | USFDA |
| Abaxis, Incorporated | Abaxis Inc | USFDA |
| Abbott | Abbott Laboratories | USFDA |
| Abbott Diabetes Care, Inc. | USFDA | |
| Abbott Diabetes Care, Inc. | USFDA | |
| Abbott Diabetes Care, Inc. | USFDA |