| 9141-2148 Québec Inc | Westmount | Cleaning Services, Cleaning Service |
| ABP Consultants en personnel | Westmount | Tout Entreprises et services |
| ABZ Assurances-Insurance | Westmount | Car Insurance |
| ACA | Westmount | Collection Agencies |
| Académie Ballet Flamenco Lina Moros | Westmount | Tout Enseignement et savoir |
| Académie White Crane Kung Fu - Mtl/Rosemont/Peti te Patrie | Montréal | Art Schools |
| Acier Wirth Steel | Westmount | Aluminum |
| Action Sport Physio | Westmount | Tout Entreprises et services, Physiotherapy |
| Adelman, Adam | Westmount | Boutiques |
| Advanceit Financial Corp | Westmount | Computer Networking |
Publicité (Desktop) Publicité (Mobile) |
| Air-Therm Inc | Westmount | Plumbing |
| Akufen Atelier Créatif | Petite-Patrie | Tout Entreprises et services |
| Altea Furniture | Westmount | Antique Restoration, Refinishing & Repair |
| AM1280 CFMB | Westmount | Tout Médias montréalais |
| Amadea S. Kezar Physiothérapie | Westmount | Physiotherapy |
| AmorChem Holdings Inc | Montréal | Life Sciences and Health Technologies (LSHT) |
| AmorChem Therapeutics Inc | Westmount Square | Life Sciences and Health Technologies (LSHT) |
| Andrea Flütsch | Westmount | Physiotherapy |
| Antiquites Coach House Enr | Westmount | Antique Dealers |
| Aplast Canada Inc | Westmount | Home Improvement |
Publicité (Desktop) Publicité (Mobile) |
| APY MTL | Montréal | Computer Graphics Design & Animation |
| AquaExpert | Westmount | Aquariums & Supplies |
| Arcade MTL | Montréal | Amusement Places, Arcades, Tout Bars et restaurants |
| Art Bouquet Mtl | Montréal | Baskets |
| Artgold Fine Art Inc | Westmount | Antique Dealers |
| Aspler Joseph Jutras Inc | Westmount | Car Insurance |
| Assemblée Quaker de Montréal | Westmount | Tout Communautés et société |
| Association de parents de Mont-Roya... | Ville-Mont-Royal | Tout Communautés et société |
| Association des Médecins omnipratic... | Westmount | Tout Communautés et société |
| Association des Éditeurs de Langue... | Westmount | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Atelier | Verdun | Baskets |
| Atelier 10 | Petite-Patrie | Tout Commerces au détail, Tout Entreprises et services |
| Atelier 1846 | Franklin | Furniture Stores |
| Atelier 213 Inc. | Chomedey | Tout Arts et divertissement |
| Atelier 739 | Montréal | Arts & Crafts Stores |
| Atelier A | Montréal | Cabinet Makers |
| Atelier A L'Ecart | Longueuil | Audiovisual Production Services |
| Atelier Anaka | Montréal | Beds |
| Atelier Audio | Montréal | Audiovisual Equipment & Supplies |
| Atelier Automobile Tony Inc. | Longueuil | Auto Body Shop |
Publicité (Desktop) Publicité (Mobile) |
| Atelier B | Montréal | Cement Finishing |
| atelier b | Montréal | Boutiques |
| Atelier Babachic | Montréal | Antique Restoration, Refinishing & Repair |
| Atelier Barda | Montréal | Tout Entreprises et services, Architects |
| Atelier Beauté | Longueuil | Beauty & Fitness, Hairdressers & Beauty Salons |
| Atelier Beauté VM | Mascouche | Beauty & Fitness, Hairdressers & Beauty Salons |
| Atelier Big City | Montréal | Tout Entreprises et services |
| Atelier Bière et Vin | Longueuil | Tout Commerces au détail |
| Atelier Blow | Westmount | Beauty & Fitness, Hairdressers & Beauty Salons |
| Atelier Bobine Enfile Enr | Longueuil | Bridal Shops |
