| Clinique Dermato-Esthétique Dr Alain Dansereau | Repentigny | Medical Clinics |
| Clinique Du Boise | Repentigny | Medical Clinics |
| Clinique Micropigmentation R-Design | Laval | Beauty & Fitness, Hairdressers & Beauty Salons |
| Clinique Médicale des Affluents | Repentigny | Medical Clinics |
| Clinique Médicale L.g. | Repentigny | Medical Clinics |
| Clinique Médicale L.g. | Repentigny | Medical Clinics |
| Clinique NL | Repentigny | Chiropodists |
| Clinique Orthodontique Venne | Repentigny | Medical Clinics |
| Clinique Physio-Ostéo + | Repentigny | Physiotherapy |
| Clinique Santé Lanaudière | Repentigny | Medical Clinics |
Publicité (Desktop) Publicité (Mobile) |
| CLIP Technologies | Montréal | Tout Commerces au détail, Tout Entreprises et services |
| CliqueIA Tech INC | Montréal | Computer Consultants |
| Cloudops | Montréal | Tout Informatique et internet, Computer Consultants |
| CloudOps | Montréal | Computer Consultants |
| CloudOps | Montréal | Computer Repair & Cleaning |
| Clé en main Informatique | Montréal | Computer Networking |
| Clôture Summum | Repentigny | Tout Entreprises et services |
| Cmyktoner | Côte Saint-Luc | Computer Networking |
| Cna | Montréal | Computer Consultants |
| CNC Concept 2005 Inc | Blainville | Aircraft Design & Manufacturers |
Publicité (Desktop) Publicité (Mobile) |
| Coco la bine | Mascouche | Tout Commerces au détail, Tout Entreprises et services |
| Cocoapp | Montréal | Computer Consultants |
| Cogia | Montréal | Computer Consultants |
| Coiffure Lashop Design | Boucherville | Beauty & Fitness, Hairdressers & Beauty Salons |
| COKLUCH | Villeray | Tout Entreprises et services |
| Colibri Art Design Inc. | Montréal | Tout Entreprises et services |
| Colisium Design | Blainville | Architectural & Construction Specifications |
| Collectif Créatif MTL | Montréal | Tout Commerces au détail |
| Collection Design ED Inc | Montréal | Bedding & Linens |
| Combustible | Montréal | Computer Networking |
Publicité (Desktop) Publicité (Mobile) |
| Commerce Montex | Montréal | Computer Room Setup, Protection, Equipment & Maintenance |
| Communication Idéale Inc. | Repentigny | Tout Entreprises et services |
| Communications Idéales Inc. | Repentigny | Tout Commerces au détail |
| Communications Tsunoda International | Montréal | Information Technologies (IT) |
| Communidée Design Inc. | Montréal | Tout Entreprises et services |
| Compagnie Bicc General Cable | Saint-Jérôme | Cabling Equipment & Supplies |
| Compagnie Technologies Unity Canada | Montréal | Information Technologies (IT) |
| Compass Minerals Canada Corp | Repentigny | Agri-food |
| Complexe Horticole Bastien | Terrebonne | Tout Entreprises et services |
| Compresseurs G D G Inc Les | Repentigny | Compressors |
Publicité (Desktop) Publicité (Mobile) |
| Compumatik | Montréal | Computer Repair & Cleaning |
| Computer sciences corporation | Montréal | Information Technologies (IT) |
| Computershare Trust Company of Canada | Montréal | Information Technologies (IT) |
| Concept Giroux | Chambly | Tout Commerces au détail |
| Concept M Rustique | Gatineau-Outaouais | Tout Commerces au détail |
| Conception Floral Design | La Prairie | Baskets |
| Conception pur Design | Montréal | Kitchen Cabinets |
| Conception Tekni-B | Brossard | Computer & Technology Assistance Programs |
| Confort Design | Mascouche | Tout Entreprises et services |
| Confort Tech Design | Montréal | Furniture Stores |
