| Manwaring Web Solutions, Inc. | Idaho |
| Manychat, Inc. | |
| ManyMIDI Products | California |
| Manzanita Pharmaceuticals, Inc. | California |
| Map Maker | |
| Map My Customers, Inc. | North Carolina |
| Map-IT Solutions | Arizona |
| Mapbox | District of Columbia |
| Mapcom Systems | Virginia |
| Mapcon Technologies, Inc. | Iowa |
| mapEDU | California |
| Mapistry, Inc. | |
| Maple Hill Software | Vermont |
| Maple Systems, Inc. | Washington |
| Maplebrains Technologies, Inc. | |
| MapleTime, Inc. | Illinois |
| Mapleton Hill, Inc. | Colorado |
| MapleTronics | Indiana |
| Maplewood Software, Inc. | Washington |
| Mapline, Inc. | Utah |
| MapMeLocal, LLC | Georgia |
| Maponos Therapeutics, Inc. | |
| MAPP Advisors, LLC | Nevada |
| Mapp Biopharmaceutical | |
| Mapp Digital US, LLC | California |
| Mapping Solutions, LLC | Michigan |
| MapQuest, Inc. | Colorado |
| MapRecord Publications | Massachusetts |
| MapRecruit, Inc. | California |
| Mapspot, Inc. | |
| Mapsys, Inc. | Ohio |
| Mapthematics, LLC | Washington |
| MapuSoft | Alabama |
| MAQ Software | Washington |
| MAR Solutions, LLC | Texas |
| Mar-PC Services, LLC | Connecticut |
| MARAbio | |
| Maranatha Baptist University | Wisconsin |
| Marathon Asset Management | |
| Marathon Capital, LLC | Illinois |
| Marathon Consulting | Virginia |
| Marathon Services, Inc. | California |
| Marble Computer, Inc. | Texas |
| Marblesoft, LLC | Minnesota |
| Marc Bell Capital, LLC | Florida |
| Marc Mintz & Associates | New Jersey |
| Marc Niegowski - Connectivity, Inc. | Pennsylvania |
| Marc Tytus Busines Solutions, Inc. | |
| Marca Studio, Inc. | |
| Marcaria.com | Florida |