| Morrison | |
| Morrison Tech | Illinois |
| Morrison-Maierle Systems | Montana |
| Morrow Lane, LLC | |
| Morrow Technologies Corporation | Florida |
| Morse PC Support | Massachusetts |
| Mortimer Smythe Designs | California |
| Morton College | Illinois |
| Morty, Inc. | New York |
| Mosaic | |
| Mosaic Biosciences | |
| Mosaic Biosciences, Inc. | Colorado |
| Mosaic Data Services, Inc. | Maryland |
| Mosaic eMarketing | |
| Mosaic ImmunoEngineering, Inc. | |
| Mosaic Learning | Maryland |
| Mosaic Marketing | |
| Mosaic Sales Solutions US Operating Co., LLC | |
| Mosaic Technology Corporation | New Hampshire |
| Mosaic, Inc. | Illinois |
| MosaicApp, Inc. | New York |
| Moscazul Software, LLC | Michigan |
| Moseley Associates, Inc. | California |
| Moser Consulting, Inc. | Indiana |
| Mosey Works, Inc. | |
| Mosh Tech | |
| Mosio | Washington |
| MOSourceLink | Missouri |
| Mosquito Hawk Technologies | Virginia |
| Moss Bay Software | Washington |
| Moss Bio | Maryland |
| Mossman Associates, Inc. | Massachusetts |
| Mossor Computers, Inc. | Ohio |
| MossWarner | California |
| MOST Programming, Inc. | |
| Most Technologies | Georgia |
| MOST.technology | California |
| Mostly Marketing, Inc. | New York |
| MostlyWeb | Pennsylvania |
| Mosyle Corporation | |
| MoSys, Inc. | California |
| Motava | California |
| Mote | |
| Mote Labs | |
| MOTE Therapeutics | |
| MoTek Technologies | California |
| Mother Tucker, LLC | Texas |
| Motherbrain Media, LLC | |
| MotherDuck | Washington |
| MotherMedia, LLC | Texas |