| Attachmate | Pointe-Claire | Information Technologies (IT) |
| Aubin Ginette | Sainte-Claire | Real Estate Offices, Agence immobiliere |
| Auction | Montréal | Auctions |
| Auction Direct GTA.ca | Longueuil | Auctions |
| Aust & Hachmann (Canada) Ltd | Pointe-Claire | Agri-food |
| Auto Camping | Lachine | Auto Part Manufacturers & Wholesalers |
| Auto Entretien 1000-Lift | Pointe-Aux-Trembles | Mecanique Auto |
| Auto Kool | Lachine | Auto Part Manufacturers & Wholesalers |
| Auto Shaltas Garage Inc | Lachine | Auto Body Shop |
| Auto123 | Pointe-Claire | Tout Commerces au détail |
Publicité (Desktop) Publicité (Mobile) |
| Autobus Montroyal Inc | Lachine | Chauffeur Services |
| Automaticash | Lachine | Automated Teller Manufacturers & Wholesalers |
| Automatisation Everest Inc | Pointe-Claire | Automation Systems & Equipment |
| Autos Internationales Lachine | Lachine | Tout Commerces au détail |
| Avalon Partners | Pointe-Claire | Business Brokers |
| Avec Plaisirs | Pointe-Saint-Charles | Tout Entreprises et services |
| Avenant SST Inc | Lachine | Health Services |
| Avery Weigh-Tronix Canada | Pointe-Claire | Tout Entreprises et services |
| Avon Canada Inc. | Pointe-Claire | Tout Commerces au détail |
| Axe Services Inc | Pointe-Aux-Trembles | Cleaning Services, Cleaning Service |
Publicité (Desktop) Publicité (Mobile) |
| Axiotech | Pointe-Aux-Trembles | Computer Repair & Cleaning |
| Aéro-Mag 2000 Inc | Lachine | Aircraft Maintenance, Service & Storage |
| B G R Chemical Products Inc | Pointe-Claire | Chemicals |
| B S F Inc | Pointe-Claire | Aircraft Parts, Engines & Avionics |
| Baby-m | Pointe-Claire | Baby Products & Accessories |
| Balcons Verdun | Pointe-Aux-Trembles | Balconies |
| Ballet Montreal Performing Arts School | Pointe-Claire | Art Schools |
| Balloon Max | Pointe-Claire | Balloons |
| BAM Strategy | Pointe-Claire | Tout Entreprises et services, Tout Informatique et internet |
| Banyan Électrique 9221-9864 Québec Inc | Pointe-Claire | Electricians |
Publicité (Desktop) Publicité (Mobile) |
| Bar Le Griffon | Lachine | Brasseries |
| Bar Le Griffon | Lachine | Brasseries |
| Bardeco | Lachine | Tout Bars et restaurants |
| Bariatrix Internaitonal Inc. | Pointe-Aux-Trembles | Agri-food |
| Bariatrix Nutrition | Lachine | Tout Entreprises et services |
| Barrette & Associés | Lachine | Tout Entreprises et services |
| Baxter Corporation | Pointe-Claire | Life Sciences and Health Technologies (LSHT) |
| Beacon Roofing Supply Canada Company | Pointe-Aux-Trembles | Roofing |
| BEAUDAR ELECTRIQUE | Pointe-Aux-Trembles | Electricians |
| BeautySense | Pointe-Claire | Tout Commerces au détail |
Publicité (Desktop) Publicité (Mobile) |
| Belvedere Bowling Inc | Lachine | Bowling |
| Bibliofiche | Pointe-Claire | Child Care Equipment & Supplies |
| Bibliothèque publique de Pointe-Cla... | Pointe-Claire | Tout Enseignement et savoir |
| Bibliothèque Saint-Charles | Pointe-Saint-Charles | Tout Enseignement et savoir |
| Bicyclettes Rossi | Lachine | Tout Commerces au détail |
| Bicyclettes Rossi | Lachine | Clothing Manufacturers & Wholesalers |
| Bio S & T Inc. | Lachine | Life Sciences and Health Technologies (LSHT), Tout Entreprises et services |
| Bioforce Canada - A. Vogel | Pointe-Claire | Tout Entreprises et services |
| Bistro Jardin | Pointe-Aux-Trembles | Brasseries |
| Bitumar Inc. | Montréal | Tout Entreprises et services |
