| 3D Aluminum Inc. | Brossard | Aluminum |
| 40 Westt | Pointe-Claire | Tout Bars et restaurants |
| 77 Design | Montréal | Aluminum |
| 9032-2253 Québec Inc | Pointe-Aux-Trembles | Aluminum |
| A & D Prevost Inc | Richelieu | Aluminum Products |
| A & R Fourniture Inc | Pointe-Aux-Trembles | Appliance Repair |
| A Ct | Pointe-Calumet | ct |
| A E M Q Association des Entrepreneurs en Maçonnerie du Québec | Pointe-Aux-Trembles | Association Management |
| Ab Mcmahon | Pointe-Claire | ab |
| ABEONA SYSTEMS INC. | Montréal | Life Sciences and Health Technologies (LSHT) |
Publicité (Desktop) Publicité (Mobile) |
| ABP | Montréal | Tout Commerces au détail, Tout Entreprises et services |
| Acier Century Inc | Brossard | Aluminum |
| Acier Lachine Inc | Lachine | Aluminum |
| Acier Leroux Inc | Boucherville | Aluminum |
| Acier Omega Ltée | Saint-Léonard | Aluminum |
| Acier Ouellette Inc | Salaberry-De-Valleyfield | Aluminum |
| Acier Picard | Varennes | Aluminum |
| Acier Wirth Steel | Westmount | Aluminum |
| ACSP-Québec | Montréal | Tout Entreprises et services |
| Action Santé De Pointe St-Charles | Montréal | Health Services |
Publicité (Desktop) Publicité (Mobile) |
| Action Scuba | Pointe-Claire | Tout Commerces au détail |
| Action-Gardien | Pointe-Saint-Charles | Tout Informations générales |
| Adapta Space | Pointe-Claire | Computer Accessories & Supplies |
| ADD CANADA COMPANY | Pointe-Claire | Information Technologies (IT) |
| Adhesifs Forbo (Canada) Ltée | Pointe-Claire | Tout Entreprises et services |
| Aerofil | Pointe-Claire | Life Sciences and Health Technologies (LSHT) |
| AERONAV NAVIGATION INTERNATIONAL | Pointe-Claire | Aerospace |
| AEROSPHERE | Pointe-Claire | Aerospace |
| Aerus | Pointe-Claire | Central Vacuum Systems |
| Aesthetique Tallie Inc | Pointe-Claire | Beauty & Fitness, Hairdressers & Beauty Salons |
Publicité (Desktop) Publicité (Mobile) |
| Aesus Systems, Inc. | Pointe-Claire | Tout Entreprises et services |
| Ag Qureshi | Pointe-Claire | ag |
| AG3 Sécurité | Pointe-Saint-Charles | Tout Entreprises et services |
| AirScience | Pointe-Saint-Charles | Tout Entreprises et services |
| Al-Ré Pierre Aluminium Enr | Brossard | Aluminum |
| Albuca | Pointe-Claire | Life Sciences and Health Technologies (LSHT) |
| Alcan Inc | Montréal | Aluminum, Aluminum Fabricators |
| Alclaurey Aluminium Inc | Brossard | Aluminum |
| Alcoa Canada | Montréal | Aluminum |
| Alcoa Canada Cie | Montréal | Aluminum, Aluminum Fabricators |
Publicité (Desktop) Publicité (Mobile) |
| Alerte fissure inc. | Montréal | Tout Entreprises et services |
| Alger Aluminium (1989) Enr | Laval | Aluminum |
| Aliments Cell Inc. | Pointe-Claire | Agri-food |
| Aliments Ed Foods Inc. | Pointe-Claire | Agri-food |
| Aliments LUDA | Pointe-Claire | Tout Entreprises et services |
| Aliments Noble Inc. | Pointe-Claire | Agri-food |
| Allez-Up | Pointe-Saint-Charles | Tout Commerces au détail |
| Allied Aluminum Products Compagny Inc | Montréal | Aluminum Products |
| Alumicor Limited | Montréal | Aluminum, Aluminum Products, Architects |
| Alumilex | Montréal | Aluminum |
