| MH Media Strategies | |
| MH Software, Inc. | Colorado |
| MHA Consulting | Arizona |
| MHC Automation | Minnesota |
| mhe.net, Inc. | Missouri |
| mHelpDesk | Virginia |
| MHK Marketing Group, LLC | |
| MHO | Colorado |
| MHP Multimedia, LLC | New Jersey |
| MHPOffice | |
| MHTC | Wisconsin |
| mHUB | Illinois |
| MI Consulting | New York |
| MI Group of Companies | |
| Mi-Corporation | North Carolina |
| Mi4 Corporation | Texas |
| Mi9 Retail | Florida |
| Miach Orthopaedics, Inc. | Massachusetts |
| Mialco, LLC | New York |
| Miami Ad School | |
| Miami Angels | Florida |
| Miami Dade College | Florida |
| Miami ecommerce | Florida |
| Miami Phone Systems | Florida |
| Miami Tape, Inc. | Florida |
| Miami University | Florida |
| Miami Valley Research Park | Ohio |
| Miami Web Company | |
| Miami Web Design | Florida |
| Miami Website Designs | Florida |
| MiamiWebDesign | Florida |
| MIAX Derivatives Exchange | |
| MIB Software, Inc. | Pennsylvania |
| MICA Information Systems, Inc. | North Carolina |
| Mica Specialties | |
| MicahTek, Inc. | Oklahoma |
| MiCareo, Inc. | |
| Michael Bartmon Computer Services, LLC | Texas |
| Michael Chiavaroli & Associates | California |
| Michael Cottam | Oregon |
| Michael Kleiner Public Relations, Writing, Web Design | Pennsylvania |
| Michael Long | Washington |
| Michael Management Corporation | New York |
| Michael Moceri | |
| Michaels, Ross & Cole Ltd | Illinois |
| Michelle Jones Creative, LLC | |
| Michelle/Thomas/Hutchins Ltd | Wisconsin |
| Michian State University - Laboratory for Hybrid Quantum Systems | Michigan |
| Michigan Aerospace | Michigan |
| Michigan Association of State Universities | |