| Cato Recherche Canada | Montréal | Life Sciences and Health Technologies (LSHT) |
| Cato Recherche Canada Inc.* | Montréal | Life Sciences and Health Technologies (LSHT) |
| Cedarome Canada | Brossard | Life Sciences and Health Technologies (LSHT) |
| CEDAROME Canada Inc. | Brossard | Life Sciences and Health Technologies (LSHT), Tout Entreprises et services |
| Cefalonian Brotherhood of Canada AENOS | Montréal | Blue Pages |
| Celine Couture | Laval | Couture, COUTURE |
| Cellcosmet & Cellmen Canada | Laval | Health and Beauty |
| CENTRE DE RECHERCHES HELLENIQUES-CANADA | Montréal | Blue Pages |
| Centre Marvel Audio Visuel Canada Ltee | Laval | Audiovisual Equipment & Supplies |
| CGC Collection Group of Canada | Montréal | Collection Agencies |
Publicité (Desktop) Publicité (Mobile) |
| CH KAY Canada | Montréal | Information Technologies (IT) |
| Chambre De Commerce Irlande - Canada / Ireland C anada Chamber Of Commerce | Verdun | Chambers of Commerce |
| Chantal Couture | Montréal | Couture, COUTURE |
| Chantier d'Afrique du Canada | Verdun | Tout Communautés et société |
| Charles Couture | Montréal | Couture, COUTURE |
| Charles Couture | Saint-Bruno | Couture, COUTURE |
| Charlotte Couture | Laval | Couture, COUTURE |
| Chatters Canada Limited | Brossard | Tout Commerces au détail |
| Chocmod Canada Inc | Montréal | Candy & Confectionery Manufacturers & Wholesalers |
| Christian Couture | Longueuil | Couture, COUTURE |
Publicité (Desktop) Publicité (Mobile) |
| ChrysaLabs | Québec | Information Technologies (IT) |
| Chrystina Couture | Montréal | Couture, COUTURE |
| Church & Dwight Canada | Ville-Mont-Royal | Tout Entreprises et services |
| Church & Dwight Canada Corp. | Mont-Royal | Life Sciences and Health Technologies (LSHT) |
| CI Canada | Montréal | Tout Entreprises et services |
| Ciena Canada Inc | Montréal | Information Technologies (IT) |
| Cintas Canada Limitée | Saint-Michel | Tout Entreprises et services |
| Ciné Monde Canada | Montréal | Camera & Photo Equipment Stores |
| Cisco Systems Canada | Montréal | Information Technologies (IT) |
| CITIZENSHIP AND IMMIGRATION CANADA | Montréal | Blue Pages |
Publicité (Desktop) Publicité (Mobile) |
| CJNT TV Cable 14, J. Kokkonas | Montréal | Blue Pages |
| Claret Canada Inc | Richelieu | Tout Entreprises et services |
| Clariant Canada Inc | Montréal | Colours & Pigments |
| Clariant Canada Inc Masterbatches Division | Lachine | Agricultural Chemicals |
| Clarins Canada Inc | Laval | Life Sciences and Health Technologies (LSHT) |
| Clarins Canada Inc. | Chomedey | Tout Commerces au détail |
| Claude Couture | Saint-Hubert | Couture, COUTURE |
| Claude Couture | Saint-Hubert | Couture, COUTURE |
| Claudette Couture | Montréal | Couture, COUTURE |
| Claudette Couture | Montréal | Couture, COUTURE |
Publicité (Desktop) Publicité (Mobile) |
| Claudette Couture | Saint-Mathias-Sur-Richelieu | Couture, COUTURE |
| Clever Plays | Montréal | Information Technologies (IT) |
| Climatair Canada | Montréal | Appliance Repair & Service |
| Climatiseur Zoom Air 9428119 Canada Inc | Montréal | Air Conditioning Contractors |
| Clorox Company of Canada Ltd. | Pointe-Claire | Tout Entreprises et services |
| Club Alpin du Canada, Section Montr... | Western Quebec | Tout Arts et divertissement |
| Colgate-Palmolive Canada Inc. | Laval | Tout Entreprises et services |
| Colgilex R&D | Montréal | Information Technologies (IT) |
| Collins Aerospace Canada | Montréal | Tout Entreprises et services |
| Collège Canada | Centre-Ville | Tout Enseignement et savoir |
