| MSI Bureautique, Inc. | Quebec |
| MSI Computer (Canada) Ltd | Ontario |
| MSM | Quebec |
| MSP Assist | |
| MSP Corp West | |
| MSPStream Technologies | British Columbia |
| MT Lab | Quebec |
| MT Systems | Ontario |
| mTATT | |
| MTC Computer Solutions, Inc. | Ontario |
| MTCca.net | Saskatchewan |
| Mtek Digital | |
| Mtex Media Corporation | Ontario |
| MTI Automation | Quebec |
| mtion Interactive, Inc. | |
| MTL connecte | |
| Mtl Solutions | Quebec |
| MTL+Ecommerce | |
| MTLS Aerostructure | Quebec |
| Mtoag | Ontario |
| MTR Software | Ontario |
| mTransport | |
| MTS CANADA Enterprises, Inc. | Ontario |
| Mugo Web | |
| Muller Systems Corporation, Inc. | Ontario |
| Mulli.ca | |
| Multi Techniques, Inc | Quebec |
| Multi-Com, Inc. | |
| Multi-Electronique (MTE), Inc. | Quebec |
| MultiCIM Technologies, Inc. | Quebec |
| Multicomm Computer Systems, Inc. | Ontario |
| Multidev Technologies, Inc. | |
| Multihexa | Quebec |
| MultiHost | Ontario |
| MULTILEARNING Group, Inc. | Quebec |
| Multilex Inc. | Ontario |
| Multilingual E-Data Solutions | Ontario |
| Multimedia Design Canada | British Columbia |
| Multinet Ressources | Quebec |
| MultipleMedia | Quebec |
| MultiRecycle | Quebec |
| MultisoftGroup.com | Ontario |
| Multitel | Quebec |
| Multiterminal | Ontario |
| Multitone Wireless (CANADA) | Ontario |
| Multiverse Computing | Ontario |
| Multivet Media | Quebec |
| Multiview Corporation | Ontario |
| MultiWeb Solutions | Quebec |
| Municipal Associates, Inc. | Ontario |