| 514 Vaccins Inc | Montréal | Medical Clinics |
| 9141-2148 Québec Inc | Westmount | Cleaning Services, Cleaning Service |
| A La Clinique Medicale Mont Royal | Montréal | Medical Clinics |
| A Votre Sante HB | Montréal | Medical Clinics |
| Able Chinese Acupuncture Clinic | Montréal | Acupuncturists, Alternative Health |
| ABO lab | Laval | Medical Clinics |
| 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 |
Publicité (Desktop) Publicité (Mobile) |
| Accompagnante-Jc | Brossard | Medical Clinics |
| Accès Podiatres | Laval | Medical Clinics |
| Accès Services Santé - domicile | Longueuil | Care Homes, Clinics |
| Acier Wirth Steel | Westmount | Aluminum |
| Acoustique Médicale Inc | Laval | Medical Clinics |
| Action Sport Physio | Westmount | Tout Entreprises et services, Physiotherapy |
| Acupuncture Emmanuelle Rioux | Saint-Lambert | Clinics |
| Acupuncture Tran | Montréal | Medical Clinics |
| Acupuncture Unlimited | Montréal | Medical Clinics |
| Adelman, Adam | Westmount | Boutiques |
Publicité (Desktop) Publicité (Mobile) |
| Advanceit Financial Corp | Westmount | Computer Networking |
| Aequivalens Clinical Research | Montréal | Life Sciences and Health Technologies (LSHT) |
| AGOO | Laval | Medical Clinics |
| Air-Therm Inc | Westmount | Plumbing |
| Alfa Clinique Médicale | Saint-Constant | Medical Clinics |
| Alpha Seaforth Clinique Dentaire | Québec | Dentists |
| Altea Furniture | Westmount | Antique Restoration, Refinishing & Repair |
| AM1280 CFMB | Westmount | Tout Médias montréalais |
| Amadea S. Kezar Physiothérapie | Westmount | Physiotherapy |
| Amissa Clinic Massage Therapist | Saint-Léonard | Massage Therapy |
Publicité (Desktop) Publicité (Mobile) |
| Amor Ben Sta | Montréal | Medical Clinics |
| 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 |
| Annie Fournier | Montréal | Medical Clinics |
| Antiquites Coach House Enr | Westmount | Antique Dealers |
| Aplast Canada Inc | Westmount | Home Improvement |
| Apnair | Montréal | Medical Clinics |
| Apnee Sante Apnea Health | Montréal | Medical Clinics |
| Apnée Santé | Châteauguay | Medical Clinics |
Publicité (Desktop) Publicité (Mobile) |
| AquaExpert | Westmount | Aquariums & Supplies |
| Artgold Fine Art Inc | Westmount | Antique Dealers |
| Aspler Joseph Jutras Inc | Westmount | Car Insurance |
| Assemblée Quaker de Montréal | Westmount | Tout Communautés et société |
| Association des Médecins omnipratic... | Westmount | Tout Communautés et société |
| Association des Éditeurs de Langue... | Westmount | Tout Entreprises et services |
| Association nationale des naturothé... | Villeray | Tout Entreprises et services |
| AST Clinical solutions | Laval | Life Sciences and Health Technologies (LSHT) |
| AST Clinical solutions | Albert-Einstein | Life Sciences and Health Technologies (LSHT) |
| Atelier Blow | Westmount | Beauty & Fitness, Hairdressers & Beauty Salons |
