| Coty Canada | Dorval | Life Sciences and Health Technologies (LSHT) |
| Coty Canada Inc. | Dorval | Tout Commerces au détail |
| Coulage Adams Casting Inc | Dorval | Calendars |
| Courrier Mdex | Dorval | Tout Entreprises et services |
| 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) |
| CPAP Montreal Respiart | Pointe-Claire | Tout Commerces au détail |
| CPE A Petits Pas | Dorval | Babysitting Services |
Publicité (Desktop) Publicité (Mobile) |
| Crazy about CupCakes | Pointe-Claire | Tout Commerces au détail |
| Cristal Plus Inc. | Pointe-Claire | Cleaning Services, Cleaning Service |
| Crossfit De L'Ouest | Dorval | Fitness Gyms |
| 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 |
| D'Amour Bicycles & Sports | Dorval | Bicycle Stores |
| Da Mangione Pizza Pasta Inc | Dorval | Pizza & Pizzerias |
| 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 |
| Davanac Inc. | Dorval | Tout Entreprises et services |
| David Ho Wo Cheong | Dorval | wo |
Publicité (Desktop) Publicité (Mobile) |
| De Luxe Produits de Papier Inc. | Montréal | Tout Entreprises et services |
| Degrémont | Dorval | Life Sciences and Health Technologies (LSHT) |
| DEK Canada | Pointe-Claire | Tout Entreprises et services |
| Delstar Inc | Montréal | Tout Entreprises et services |
| Delta Pharma Inc. | Dorval | Life Sciences and Health Technologies (LSHT), Tout Entreprises et services |
| Demix Construction | Pointe-Aux-Trembles | Building Contractors |
| Denis Brisebois & Fils Elect | Pointe-Aux-Trembles | Electricians |
| Dermtek Pharmaceutique Ltée | Dorval | Life Sciences and Health Technologies (LSHT) |
| Design Technology | Pointe-Claire | Tout Informatique et internet |
| Desrosiers Paysagiste | Pointe-Aux-Trembles | Landscaping |
Publicité (Desktop) Publicité (Mobile) |
| Destination Confort Spa | Pointe-Aux-Trembles | Beauty & Fitness, Hairdressers & Beauty Salons |
| Devon Dero | Dorval | Beauty & Fitness, Hairdressers & Beauty Salons |
| Dew Auto | Dorval | Auto Part Manufacturers & Wholesalers, Automobiles, car Dealers |
| Diesel Spec Inc | Pointe-Saint-Charles | Tout Commerces au détail |
| Diligence Service D'Entretien | Pointe-Aux-Trembles | Cleaning Services, Cleaning Service |
| DIONYSIOS KALOYANNIS-ORAL & MAXILLOFACIAL SURGEON | Pointe-Claire | Health |
| Discovery Air Inc | Dorval | Airlines |
| Distribution René Giguère Inc | Pointe-Aux-Trembles | Beverage Distributors & Bottlers |
| Diversi-Tech Inc. | Dorval | Tout Entreprises et services |
| Diversified ULBRICH Canada Inc. | Pointe-Claire | Tout Entreprises et services |
