| Datrox Computer Technologies Inc. | Montréal | Tout Informatique et internet |
| Dauphin Technologie | Laval | Computer Data Processing |
| Dauphin Technologie Quebec | Laval | Computer Data Processing |
| Dealer Live Inc | Longueuil | Computer Networking |
| Decision One | Montréal | Computer Data Processing |
| Decor Flooring West-Island | Anjou | Flooring |
| Decors Cartier Ltee | Montréal | Flooring |
| Demova | Montréal | Flooring |
| Dempton Solutions Technologiques Inc | Montréal | Computer Consultants |
| Design America - Cermica Chaza | Montréal | Flooring |
Publicité (Desktop) Publicité (Mobile) |
| Design Polymére Inc | Montréal | Flooring |
| Designorganik | Montréal | Computer Graphics Design & Animation |
| Desrosiers Plancher | Montréal | Flooring |
| Dessin Autocad | Montréal | Computer Graphics Design & Animation |
| Destination planchers | Montréal | Flooring |
| DG Installation | Montréal | Computer Cabling, Installation & Service |
| Digital Domain | Montréal | Computer Repair & Cleaning |
| Disegna Decking | Montréal | Flooring |
| Distribution SLV Inc. | Montréal | Computer Repair & Cleaning |
| Distributions Zein | Laval | Computer Accessories & Supplies |
Publicité (Desktop) Publicité (Mobile) |
| DMS Plancher | Montréal | Flooring |
| Doc-Tec | Montréal | Computer Repair & Cleaning |
| DomcOr | Saint-Léonard | Flooring |
| Dotcom-Specialiste en Technologies de L'information | Montréal | Computer Cabling, Installation & Service |
| Dotcom-Specialiste en Technologies de L'information | Montréal | Computer Consultants |
| Dragona Flooring Supplies | Montréal | Flooring |
| Drenlia Inc. | Longueuil | Computer & Technology Assistance Programs |
| Dsolution | Montréal | Computer Consultants |
| Dtech Pro | Lachine | Computer Repair & Cleaning |
| Dti Software | Montréal | Computer Graphics Design & Animation |
Publicité (Desktop) Publicité (Mobile) |
| Dumont Solutions Inc | Verdun | Computer Consultants |
| Duo Chade | Montréal | Computer Graphics Design & Animation |
| Duotech Amenagement Inc | Montréal | Computer Cabling, Installation & Service |
| Dupuis Solutions Informatique | Laval | Computer Room Setup, Protection, Equipment & Maintenance |
| Dura Undercushions Ltd | Mont-Royal | Tout Entreprises et services, Flooring |
| Duracoat Epoxy | Montréal | Flooring |
| Déco Surfaces - Tapis Champeau Prélart | Verdun | Flooring |
| Déco Surfaces | Sol-Innov + | Saint-Léonard | Flooring |
| Décorations Intérieurs et Planchers | Montréal | Flooring |
| E.O. Fernandez Céramique Inc. | Montréal | Flooring |
Publicité (Desktop) Publicité (Mobile) |
| Easey Ink | Montréal | Flooring |
| Easy-Way Ltée | Dorval | Flooring |
| Eccentrix | Laval | Computer & Technology Assistance Programs |
| Edith Grosse Conteuse | Verdun | Tout Arts et divertissement, Tout Entreprises et services, Computer Graphics Design & Animation |
| efadata Inc | Montréal | Computer Data Processing |
| ELC | Montréal | Computer Consultants |
| Elco Systems | Montréal | Computer Accessories & Supplies |
| Electroline Equipment Inc | Montréal | Cable TV Providers |
| Emco Machinerie | Montréal | Flooring |
| EMJ Data Systems Ltd | Montréal | Computer Manufacturers & Wholesalers |
