| Mettle | |
| Mexley Marketing, Inc. | Ontario |
| Meya.ia | Ontario |
| Mezoweb Solutions, Inc. | Quebec |
| MF2 Aero | |
| MFG Technologies | Quebec |
| MFGSoft Tech, Inc. | Ontario |
| MG2 Média, Inc. | Quebec |
| MGA Concept | Quebec |
| Mgestyk Technolgies, Inc. | Ontario |
| MGWebCom | |
| MH Systems | Ontario |
| MHz Design Communications, Inc. | Ontario |
| MiApple, Inc. | Ontario |
| MiB Healthcare Solutions, Inc. | Ontario |
| Mibusoft, Inc. | Quebec |
| Micador Informatique | Quebec |
| Michael Gabriel Communications | Nova Scotia |
| Michael Geist | Ontario |
| Michael Zellan | Quebec |
| Michel Fortin Technicien | Quebec |
| Michell Computer Services Corporation | |
| Michener Institute of Education at UHN | |
| Michetti Info | Alberta |
| Micom Laboratories, Inc. | |
| MiComPro Ltd | Ontario |
| MICON Systems Group, Inc. | Ontario |
| Micro Bird, Inc. | Quebec |
| Micro Boutique | |
| Micro Châteauguay | |
| Micro Com Systems Ltd | British Columbia |
| Micro Computer Consulting, Inc. | Ontario |
| Micro Computers Plus | Alberta |
| Micro Data BR | Quebec |
| Micro Decision, Inc. | Ontario |
| Micro en Gros | Quebec |
| Micro Logic | Quebec |
| Micro Pebbles Coding Solution | |
| Micro Pro Service | Quebec |
| Micro Sur Mesure | Quebec |
| Micro Trend Robotics, Inc. | Ontario |
| Micro-Press.com | Ontario |
| Micro-Tech | Newfoundland and Labrador |
| Micro-Utopia, Inc. | Quebec |
| Micro-Vision | |
| Micro-Works | Ontario |
| Microage | Ontario |
| MicroAge Basics | Ontario |
| MicroAge Bathurst | New Brunswick |
| MicroAge Belleville | |