| Alain Couture | Montréal | Couture, COUTURE |
| Alcatel-Lucent Canada | Montréal | Information Technologies (IT) |
| Alcoa Canada | Montréal | Aluminum |
| Alcoa Canada Cie | Montréal | Aluminum, Aluminum Fabricators |
| Alice and smith | Montréal | Information Technologies (IT) |
| Align Aerospace | Boucherville | Aviation Consultants & Services |
| Aligo | Montréal | Information Technologies (IT) |
| Aliments Conagra Canada Inc. | Boisbriand | Agri-food |
| Aliments Dole Canada | Laval | Agri-food |
| Aliments Morehouse Canada Inc | Lachine | Agri-food |
Publicité (Desktop) Publicité (Mobile) |
| Aliments Ronzoni du Canada (Les) | Montréal | Agri-food |
| Allbudget Moving & Storage-Canada | Montréal | Moving Companies |
| Alliance de la Fonction Publique du Canada | Montréal | Community Service & Charitable Organizations |
| Alphacasting Inc. | Montréal | Aerospace, Tout Entreprises et services |
| ALSIM | Montréal | Aerospace |
| ALTA PRÉCISION INC. | Anjou | Aerospace |
| Altair Engineering Canada | Montréal | Information Technologies (IT) |
| Altaï Canada | Montréal | Tout Tourisme et hôtels |
| Alten Canada Inc | Montréal | Information Technologies (IT) |
| ALTITUDE AEROSPACE | Montréal | Aerospace |
Publicité (Desktop) Publicité (Mobile) |
| Altitude Aerospace Inc | Montréal | Aircraft Maintenance, Service & Storage |
| Altitude Aerospace Inc | Montréal | Aircraft Maintenance, Service & Storage |
| Alto Shaam Canada | Montréal | Commercial Kitchen Equipment |
| ALUBOX (DIVISION DE JE LORTIE COMPAGNIE LTÉE) | Montréal | Aerospace |
| Amc Canada | Montréal | Airlines |
| AMD Ritmed Inc. | Québec | Life Sciences and Health Technologies (LSHT) |
| Amerella du Canada Ltée | Montréal | Tout Entreprises et services |
| Ameresco Canada Inc | Montréal | Life Sciences and Health Technologies (LSHT) |
| American Eagle & Aerie | Brossard | Clothing Manufacturers & Wholesalers |
| AmerisourceBergen Canada Corporation | Montréal | Life Sciences and Health Technologies (LSHT) |
Publicité (Desktop) Publicité (Mobile) |
| AMESYS | Montréal | Aerospace |
| AMPHENOL AIR LB NORTH AMERICA INC. | Saint-Hubert | Aerospace |
| AMRIKART R.C. INC. | Boucherville | Aerospace |
| Analogic Canada | Montréal | Life Sciences and Health Technologies (LSHT) |
| Andre Couture | Laval | Couture, COUTURE |
| Andre Couture | Longueuil | Couture, COUTURE |
| Angkorienne du Canada | Montréal | Arts & Cultural Organizations & Centres |
| Anixter Canada | Montréal | Information Technologies (IT) |
| Anixter Canada | Boucherville | Information Technologies (IT) |
| Anixter Canada Inc. | Montréal | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Anjuna Airline Solutions-Canada | Montréal | Airlines |
| Anne-Marie Picard | Laval | Real Estate Agents |
| Ansys Canada Ltd. | Quartier Latin Et Centre-Sud | Tout Informatique et internet |
| Anton Paar Canada | Montréal | Catalogue & Online Shopping |
| Anvil International Canada | Montréal | Building Contractors |
| AP&C Revêtements et Poudres Avancées | Montréal | Aerospace |
| AP&C Revêtements et Poudres Avancées | Montréal | Aerospace |
| Apex Aérospatial Inc | Montréal | Aircraft Maintenance, Service & Storage |
| Aplast Canada Inc | Westmount | Home Improvement |
| AppDirect Canada Inc | Montréal | Information Technologies (IT) |
