| 1230 Électroniques | Lachine | Computer Repair & Cleaning |
| 123inkcartridges.ca | Lachine | Camera & Photo Equipment Stores |
| 4 Moons Pictures | Montréal | Audiovisual Production Services |
| 4Pneus.ca, Pneus et mags a rabais | Boisbriand | Tout Commerces au détail |
| 4Tires.ca, Tires for Sale | Boisbriand | Tout Commerces au détail |
| 9132-1000 Québec Inc | Lachine | Business & Trade Organizations |
| 9334-4349 Quebec Inc | Lachine | Pizza & Pizzerias |
| 9379-9948 Québec Inc | Montréal | Pizza & Pizzerias |
| 9517-7028 Quebec Inc | Greenfield Park | Pizza & Pizzerias |
| A Asselin & Fils Inc | Lachine | Plumbing |
Publicité (Desktop) Publicité (Mobile) |
| A Aun Pied Du Bonheur | Montréal | Aromatherapy |
| A L'Orthèse du Pied | Laval | Chiropodists |
| A Pex Discount Inc | Lachine | Bedding & Linens |
| A Piece of Heaven Cakes | Longueuil | Bakeries |
| A S M Interior | Pierrefonds | Ceilings |
| A St-Pierre | Québec | zt |
| A&N Pizza 2 pour 1 | Roxboro | Pizza & Pizzerias |
| A. Picard & Fils Inc | Laval | Tire Shop |
| Aai Encanteurs Assoc Intl | Lachine | Auctions |
| Abra Electronics Corp. | Montréal | Tout Commerces au détail, Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Abu-Lasia/ Matamin | Lachine | Baked Goods Wholesalers |
| Accessoires Rose Blanche | Lachine | Bakery Equipment, Bakery Supplies |
| Accord Expositions | Lachine | Tout Entreprises et services |
| Acier Lachine Inc | Lachine | Aluminum |
| Acier Picard | Varennes | Aluminum |
| Action 500 | Dorval | Tout Arts et divertissement |
| Acupuncture Pierre Bourque | Montréal | Acupuncturists |
| ADI Global Distribution | Lachine | Tout Entreprises et services |
| ADM Canada | Lachine | Tout Entreprises et services |
| Affiliated Sport Group | Lachine | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Agence Imapro Inc | Lachine | Business & Trade Organizations |
| Agence PID | Longueuil | Clothes Lines |
| Agences Pierre Bedard | Montréal | Common, Face & Interlocking Bricks |
| AIDA Distribution | Lachine | Beverage Distributors & Bottlers |
| Air Pro Transport 2009 | Lachine | Air Cargo Service |
| Al-Ré Pierre Aluminium Enr | Brossard | Aluminum |
| Alain Normandin Rénovation | Lachine | Home Improvement |
| Alerte fissure inc. | Montréal | Tout Entreprises et services |
| Alfohno Pizzaria | Montréal | Pizza & Pizzerias |
| Aliments Cibona Foods | Montréal | Agri-food |
Publicité (Desktop) Publicité (Mobile) |
| Aliments Morehouse Canada Inc | Lachine | Agri-food |
| Aliments T & N (Les) | Lachine | Agri-food |
| All Set Consulting | Saint-Pierre | Information Technologies (IT) |
| Allan Sverdlove Chiropracter | Pierrefonds | Chiropractors |
| Allo Pipo Le Clown | Saint-Léonard | Clowns |
| Allstream | Lachine | Information Technologies (IT), Tout Entreprises et services, Tout Informatique et internet |
| Alltech Distribution Inc | Saint-Michel | Tout Commerces au détail |
| Alongi | Lachine | Tout Commerces au détail, Tout Entreprises et services |
| ALTITUDE AEROSPACE | Montréal | Aerospace |
| Aluminium Pierre Enrg | Lemoyne | Aluminum Products |
