| MRC de Marguerite-D’Youville | |
| MRC de Maria-Chapdelaine | |
| MRC de Maskinongé | |
| MRC de Mékinac | |
| MRC de Memphrémagog | |
| MRC de Minganie | |
| MRC de Montcalm | |
| MRC de Montmagny | |
| MRC de Nicolet-Yamaska | |
| MRC de Papineau | |
| MRC de Portneuf | |
| MRC de Rimouski-Neigette | |
| MRC de Rivière-du-Loup | |
| MRC de Roussillon | |
| MRC de Rouville | |
| MRC de Sept-Rivières | |
| MRC de Témiscouata | |
| MRC de Thérèse-De Blainville | |
| MRC des Chenaux | |
| MRC des Collines-de-l'Outaouais | |
| MRC des Etchemins | |
| MRC des Sources | |
| MRC du Domaine-du-Roy | |
| MRC du Fjord-du-Saguenay | |
| MRC du Golfe-du-Saint-Laurent | |
| MRC du Granit | |
| MRC du Haut-Saint-Laurent | |
| MRC du Rocher-Percé | |
| MRC du Val-Saint-François | |
| MRC d’Argenteuil | |
| MRC Les Moulins | |
| MRC Networks | Quebec |
| MRC Pontiac | |
| MRF GeoSystems | Alberta |
| MrHost Web Hosting | Ontario |
| MRKS Media | British Columbia |
| MRKT360 | |
| MRL Integrated Solutions Ltd | Alberta |
| MRM Proteomics, Inc. | |
| MRnet Manitoba Research Network | |
| MRO Electronic Supply Ltd | Alberta |
| MRS Company Ltd | Ontario |
| MRS Company Ltd | |
| MRX Solutions Corporation | British Columbia |
| MS Geslam | Quebec |
| MS Solutions | Quebec |
| MSBnet.ca | |
| MSC Info Soolutions | |
| MSD Technical Services | Ontario |
| MSecurity | Ontario |