| Amitron Corporation | Illinois |
| Amivas | |
| Amkom Design Group, Inc. | |
| Amkor Technology | Arizona |
| AML | Texas |
| Amlgo Labs, Inc. | |
| Amlogic(CA) Co., Inc. | California |
| AmmagTech | |
| AmMax Bio, Inc. | California |
| Ammo Studio, LLC | |
| Amneal Pharmaceuticals, LLC | |
| Amnet | Colorado |
| AmNet Computers | Maryland |
| Amnet Smartshore, LLC | |
| Amnet Systems, LLC | Connecticut |
| AMNI | Florida |
| Amnio Technology, LLC | Arizona |
| AmnioChor, Inc. | |
| AMO | Minnesota |
| Amobee, Inc. | |
| Amoeba | New York |
| AMOGY, Inc. | |
| AMOpportunities | |
| Amorio Technologies | |
| Amoroso Reliability Associates, LLC | New Jersey |
| Amorphex Therapeutics Holdings, Inc. | |
| Amorserv | |
| Amosoft | California |
| Amount, Inc. | Illinois |
| AMP Agency | Massachusetts |
| AMP Digital Agency, LLC | |
| AMP Display, Inc. | California |
| AMP Payment Systems | Arizona |
| AMP Robotics | Colorado |
| AMP Robotics Corporation | |
| AMP Systems, LLC | Maryland |
| Ampac Analytical | California |
| Ampac Fine Chemicals | |
| Ampcontrol Technologies, Inc. | New York |
| Amped Marketing & Advertising Agency | |
| AMPEL BioSolutions | Virginia |
| Ampel, Inc. | Illinois |
| Ampere Computing, LLC | California |
| Ampere Computing, LLC | |
| Amperity, Inc. | Washington |
| Amperon Holdings, Inc. | New York |
| Amperor, Inc. | Texas |
| Ampersand Biomedicines | |
| Ampersand Biosciences | New York |
| Ampersand Capital Partners | Massachusetts |