| Alliages Unifiés | Dorval | Tout Entreprises et services |
| Alliance Collision Inc | Montréal | Auto Body Repair & Painting Shops |
| Allied Universal Security Services | Dorval | Tout Entreprises et services |
| Allstream | Anjou | Auto Services |
| Alltech Distribution Inc | Saint-Michel | Tout Commerces au détail |
| Aloha Espresso Bar | Montréal | Automobiles, Restaurants |
| Alouette Automates Inc | Lemoyne | Coffee Shops |
| Alpa Import & Export Corp. | Montréal | Auto Part Manufacturers & Wholesalers |
| Alset Cars | Montréal | Automobiles, car Dealers |
| Alta Material Handling | Dorval | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Altrom Group - AutoCamping | Nouveau-Rosemont Et Mercier | Tout Entreprises et services |
| Altrom/Auto-Camping - Brossard | Brossard | Auto Body Shop Equipment & Supplies |
| Altrom/Auto-Camping - Dorval | Dorval | Auto Body Shop Equipment & Supplies |
| Altrom/Auto-Camping - Laval | Laval | Auto Body Shop Equipment & Supplies |
| Amacor Marketing | Dorval | Tout Commerces au détail |
| Amber Esthetics & Makeup Studio | Dorval | Beauty & Fitness, Hairdressers & Beauty Salons |
| Amcor | Dorval | Tout Entreprises et services |
| AMEC AMÉRIQUES LIMITÉE | Dorval | Life Sciences and Health Technologies (LSHT) |
| Amenzone Fitness | Dorval | Fitness Gyms |
| American Airlines | Dorval | Airlines |
Publicité (Desktop) Publicité (Mobile) |
| Ameublement Euro Style | Dorval | Tout Commerces au détail |
| Ameublements De Bureau Intrtch | Dorval | Furniture Stores |
| AMG Auto-Mécanique | Montréal | Auto Repair Garages, Not Profit, Car Repair |
| Amigo Auto | Montréal | Garage Auto |
| Amira Auto | Montréal | Automobiles, car Dealers |
| AMS Physiotherapy & Rehabilitation Centre | Dorval | Physiotherapy |
| Anodisation Montréal Inc | Dorval | Anodizing |
| Antirouille de Protection Krown | Dollard Des Ormeaux | Auto Body Shop |
| Antirouille Garage Lave Auto | Montréal | Mecanique Auto |
| Antirouille Provincial | Montréal | Auto Body Repair & Painting Shops |
Publicité (Desktop) Publicité (Mobile) |
| Antranik Kiork | Laval | Auto Body Shop |
| Appollo Auto | Laval | Auto Body Shop |
| Approval Andy | Montréal | Automobiles, car Dealers |
| Aqua Feu Protection Incendie Inc | Laval | Automatic Fire Sprinkler Systems |
| Aqua Performa | Dorval | Fitness Gyms |
| ARA robotique | Montréal | Information Technologies (IT) |
| Aramis Vitres d'Autos | Montréal | Auto Glass & Windshields |
| Arbour Volkswagen | Laval-Des-Rapides | Tout Commerces au détail |
| Archives municipales | Montréal | Not Profit, library |
| Arctic Glacier | Dorval | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Arctic Traveler Canada Ltd | Montréal | Garage Auto |
| Ares Cuisine Head Office | Dorval | Appliance Manufacturers & Wholesalers |
| Armatures Dns 2000 Inc | Montréal | Auto Part Manufacturers & Wholesalers |
| Armolan Furniture | Dorval | Cabinet Makers |
| Arrondissement de Lachine | Lachine | Not Profit, library |
| Arrondissement Verdun | Verdun | Not Profit, library |
| Arrow Electronics | Dorval | Tout Entreprises et services |
| Arslan Automotive Canada Ltée | Pointe-Claire | Tout Commerces au détail |
| Artglass Windshield Replacements & Repairs | Laval | Auto Glass & Windshields |
| ArtMotive Garage | Montréal | Auto Body Shop |
