| 1982 Transportation | Dorval | Car & Truck Transporting Companies |
| 40 Westt | Pointe-Claire | Tout Bars et restaurants |
| 9032-2253 Québec Inc | Pointe-Aux-Trembles | Aluminum |
| 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 |
| A Votre Service Transport Et Livraison | Montréal | Car & Truck Transporting Companies |
| A-1 Remorquage Transport | Montréal | Car Repair |
| A-1 Transport | Varennes | Bus & Coach Rental & Charter |
| A.L Service Entretien Résidentiel Et Commercial | Montréal | Cleaning Services, Cleaning Service |
Publicité (Desktop) Publicité (Mobile) |
| A.V.S. Transport Inc | Montréal | Car & Truck Transporting Companies |
| Ab Mcmahon | Pointe-Claire | ab |
| ABB | Montréal | Clean Technologies |
| ABEONA SYSTEMS INC. | Montréal | Life Sciences and Health Technologies (LSHT) |
| ABP | Montréal | Tout Commerces au détail, Tout Entreprises et services |
| Acadec Transport | Saint-Léonard | Car & Truck Transporting Companies |
| Académie Baroque | Montréal | Commercial Artists |
| Accès transports viables | Québec | Tout Informations générales |
| ACSP-Québec | Montréal | Tout Entreprises et services |
| Actaeon Photo | Montréal | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Action Santé De Pointe St-Charles | Montréal | Health Services |
| Action Scuba | Pointe-Claire | Tout Commerces au détail |
| Action-Gardien | Pointe-Saint-Charles | Tout Informations générales |
| Acupuncteure Claire Lamarche | Drummondville | Acupuncturists |
| Adapta Space | Pointe-Claire | Computer Accessories & Supplies |
| ADD CANADA COMPANY | Pointe-Claire | Information Technologies (IT) |
| ADECOM | Mile End | Tout Entreprises et services |
| Adhesifs Forbo (Canada) Ltée | Pointe-Claire | Tout Entreprises et services |
| ADI Electrique - Électricien Commercial et Industriel Saint-Laurent | Montréal | Electricians |
| ADI Électrique - Électricien Commercial Montréal | Montréal | Electricians |
Publicité (Desktop) Publicité (Mobile) |
| Adieu bazou | Saint-Jérôme | Tout Communautés et société, Tout Informations générales |
| Adl | Montréal | Commercial Kitchen Equipment |
| 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 |
| Aesus Systems, Inc. | Pointe-Claire | Tout Entreprises et services |
| Ag Qureshi | Pointe-Claire | ag |
| AG3 Sécurité | Pointe-Saint-Charles | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Air Pro Transport 2009 | Lachine | Air Cargo Service |
| Aircam.ca | Saint Jean | Tout Entreprises et services |
| AirScience | Pointe-Saint-Charles | Tout Entreprises et services |
| AkioSoft | Ouest | Life Sciences and Health Technologies (LSHT) |
| Albuca | Pointe-Claire | Life Sciences and Health Technologies (LSHT) |
| Alcoa innovation | Montréal | Clean Technologies |
| Alerte fissure inc. | Montréal | Tout Entreprises et services |
| Alfred Bédard - Courtier Immobilier Commercial, Industriel Et Résidentiel | Lévis | Real Estate Offices, Courtier immobilier |
| Aliments Cell Inc. | Pointe-Claire | Agri-food |
| Aliments Ed Foods Inc. | Pointe-Claire | Agri-food |
