| Aerotek | Montréal | Business Centres |
| Aerzen Canada Inc. | Vaudreuil-Dorion | Tout Entreprises et services |
| AES Chemunex Canada | Laval | Life Sciences and Health Technologies (LSHT) |
| Affacturage Canada Inc. | Dorval | Tout Entreprises et services |
| Agence Imapro Inc | Lachine | Business & Trade Organizations |
| Agence Parcs Canada | Montréal | Not Profit, library |
| Agences Roger Boutin Inc | Boucherville | Business Brokers |
| Agilent Technologies Canada Inc | Montréal | Life Sciences and Health Technologies (LSHT) |
| Agilent Technologies Canada Inc | Montréal | Life Sciences and Health Technologies (LSHT) |
| AGRICULTURE AND AGRI-FOOD CANADA | Montréal | Blue Pages |
Publicité (Desktop) Publicité (Mobile) |
| Air Canada Cargo | Montréal | Airlines |
| Air Canada Reservations | Montréal | Airlines |
| Air Création Canada Inc | Saint-Mathieu-De-Beloeil | Aircraft & Flight Schools |
| Alain Couture | Montréal | Couture, COUTURE |
| Alain Lessard | Montréal | Business Lawyers |
| Albert Seliger | Montréal | Business Insurance |
| Alcatel-Lucent Canada | Montréal | Information Technologies (IT) |
| ALCiE Integrated Business Solutions | Montréal | Tout Informatique et internet |
| Alcoa Canada | Montréal | Aluminum |
| Alcoa Canada Cie | Montréal | Aluminum, Aluminum Fabricators |
Publicité (Desktop) Publicité (Mobile) |
| Alexandre Germain | Longueuil | Business Lawyers |
| Alice and smith | Montréal | Information Technologies (IT) |
| 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 |
| Aliments Ronzoni du Canada (Les) | Montréal | Agri-food |
| Allali Brault | Montréal | Business Lawyers |
| Allbudget Moving & Storage-Canada | Montréal | Moving Companies |
| Alliance de la Fonction Publique du Canada | Montréal | Community Service & Charitable Organizations |
Publicité (Desktop) Publicité (Mobile) |
| Alliance Web-Commerce | Montréal | Business & Trade Organizations |
| AlloFirm | Montréal | Business Brokers |
| Altair Engineering Canada | Montréal | Information Technologies (IT) |
| Altaï Canada | Montréal | Tout Tourisme et hôtels |
| Alten Canada Inc | Montréal | Information Technologies (IT) |
| Alto Shaam Canada | Montréal | Commercial Kitchen Equipment |
| 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) |
Publicité (Desktop) Publicité (Mobile) |
| AmerisourceBergen Canada Corporation | Montréal | Life Sciences and Health Technologies (LSHT) |
| Amicom Inc | Longueuil | Business Centres |
| 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 |
| Anjuna Airline Solutions-Canada | Montréal | Airlines |
