| Cm Taschereau | Pointe-Claire | cm |
| CMR (CIRCUITS) LTÉE | Pointe-Claire | Aerospace |
| Cnf Couvreur | Pointe-Aux-Trembles | Roofing |
| Coiffure Balance | Pointe-Claire | Beauty & Fitness, Hairdressers & Beauty Salons |
| Coiffure Butterfly | Pointe-Claire | Beauty & Fitness, Hairdressers & Beauty Salons |
| Coiffure Esthetique Brunette | Pointe-Claire | Beauty & Fitness, Hairdressers & Beauty Salons |
| Coiffure Illusion Enr | Pointe-Calumet | Beauty & Fitness, Hairdressers & Beauty Salons |
| Coiffure La Pointe aux 4 Vents | Boucherville | Beauty & Fitness, Hairdressers & Beauty Salons |
| Coiffure Vivalis | Pointe-Claire | Beauty & Fitness, Hairdressers & Beauty Salons |
| Cole Freight Inc. | Pointe-Claire | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Colonial Elegance | Montréal | Tout Entreprises et services |
| Comfort Inn Montreal Aeroport | Pointe-Claire | Tout Tourisme et hôtels |
| Comité ZIP Jacques-Cartier | Montréal | Tout Entreprises et services |
| Commerce xp Eastern Canada | Pointe-Claire | Auctions |
| Compagnie Bonbon Rio Inc, La | Pointe-Aux-Trembles | Agri-food |
| Compagnie Gillette Canada | Pointe-Claire | Tout Entreprises et services |
| Comptoir 21 Fish & Chips | Verdun | Chips |
| Concordia Physio Sport - Pointe-Claire | Pointe-Claire | Physiotherapy |
| Concordia Physio Sport- Pointe Claire Village | Pointe-Claire | Physiotherapy |
| Consolidated Bottle Company | Pointe-Claire | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Consolidated Bottle Corporation | Pointe-Claire | Bottles & Jars |
| Consolidated Bottle Corporation | Pointe-Claire | Bottles & Jars |
| Construction JN Inc | Pointe-Aux-Trembles | Home Improvement |
| Convergia Inc. | Pointe-Claire | Tout Entreprises et services, Tout Informatique et internet |
| Copart | Montréal | Tout Commerces au détail |
| Corporation Mainbourg | Pointe-Aux-Trembles | Tout Communautés et société, Caterers |
| Couvreur Rheaume Lajeunesse Inc | Pointe-Calumet | Roofing |
| Couvreur Verdun Inc | Pointe-Aux-Trembles | Roofing |
| Couvreur Verdun Roofing Inc. | Montréal | Tout Entreprises et services |
| Covidien Canada | Pointe-Claire | Life Sciences and Health Technologies (LSHT) |
Publicité (Desktop) Publicité (Mobile) |
| CPAP Montreal Respiart | Pointe-Claire | Tout Commerces au détail |
| Crazy about CupCakes | Pointe-Claire | Tout Commerces au détail |
| Cristal Plus Inc. | Pointe-Claire | Cleaning Services, Cleaning Service |
| Créations Plastique Formplast Inc. | Montréal | Tout Entreprises et services |
| CSA Group | Pointe-Claire | Tout Entreprises et services |
| Cuisine Set Inc | Pointe-Aux-Trembles | Kitchen Cabinets |
| Cummins Est du Canada Inc. | Pointe-Claire | Tout Entreprises et services |
| CVDS INC. | Pointe-Claire | Aerospace |
| Câblage Filotech | Pointe-Aux-Trembles | Cabling Equipment & Supplies |
| Céramique 45 | Pointe-Aux-Trembles | Ceramic Tile Installers & Contractors |
Publicité (Desktop) Publicité (Mobile) |
| Céramique Fine Pointe | Beloeil | Ceramic Tile Installers & Contractors |
| Céramique VT | Pointe-Aux-Trembles | Ceramic Tile Installers & Contractors |
| Dahlia | Pointe-Claire | Beauty & Fitness, Hairdressers & Beauty Salons |
| Dahlia Canada | Pointe-Claire | Tout Entreprises et services |
| Daniel Cooper Avocat Lawyer | Pointe-Claire | Tout Entreprises et services |
| Daniel Robert Terrassement (entrepreneur général) | Pointe-Aux-Trembles | Landscaping |
| De Luxe Produits de Papier Inc. | Montréal | Tout Entreprises et services |
| DEK Canada | Pointe-Claire | Tout Entreprises et services |
| Delstar Inc | Montréal | Tout Entreprises et services |
| Demix Construction | Pointe-Aux-Trembles | Building Contractors |
