| 1230 Électroniques | Lachine | Computer Repair & Cleaning |
| 123inkcartridges.ca | Lachine | Camera & Photo Equipment Stores |
| 9132-1000 Québec Inc | Lachine | Business & Trade Organizations |
| 9334-4349 Quebec Inc | Lachine | Pizza & Pizzerias |
| A Asselin & Fils Inc | Lachine | Plumbing |
| A Pex Discount Inc | Lachine | Bedding & Linens |
| A S M Interior | Pierrefonds | Ceilings |
| A St-Pierre | Québec | zt |
| Aai Encanteurs Assoc Intl | Lachine | Auctions |
| Abu-Lasia/ Matamin | Lachine | Baked Goods Wholesalers |
Publicité (Desktop) Publicité (Mobile) |
| Accessoires Rose Blanche | Lachine | Bakery Equipment, Bakery Supplies |
| Accord Expositions | Lachine | Tout Entreprises et services |
| Acier Lachine Inc | Lachine | Aluminum |
| 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 |
| Agence Imapro Inc | Lachine | Business & Trade Organizations |
| Agences Pierre Bedard | Montréal | Common, Face & Interlocking Bricks |
| AIDA Distribution | Lachine | Beverage Distributors & Bottlers |
Publicité (Desktop) Publicité (Mobile) |
| Air Pro Transport 2009 | Lachine | Air Cargo Service |
| Al-Ré Pierre Aluminium Enr | Brossard | Aluminum |
| Alain Normandin Rénovation | Lachine | Home Improvement |
| 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 |
| Allstream | Lachine | Information Technologies (IT), Tout Entreprises et services, Tout Informatique et internet |
| Alongi | Lachine | Tout Commerces au détail, Tout Entreprises et services |
| Aluminium Pierre Enrg | Lemoyne | Aluminum Products |
Publicité (Desktop) Publicité (Mobile) |
| Always B Clean | Lachine | Home Improvement |
| AMD Ritmed Inc. | Québec | Life Sciences and Health Technologies (LSHT) |
| AMJ Campbell Van Lines | Lachine | Tout Entreprises et services |
| Andrew & Friends - 90 Day Challenge | Lachine | Beauty Salon Equipment & Supplies |
| Angel Climatisation Inc | Pierrefonds | Air Purifiers |
| Angie Arsenault | Montréal | Tout Arts et divertissement |
| Anic Proulx | Montréal | Tout Arts et divertissement |
| Anixia | Lachine | Calendars |
| Anjali Beauty Salon | Pierrefonds | Beauty & Fitness, Hairdressers & Beauty Salons |
| Anne-Lise Nadeau | Montréal | Tout Arts et divertissement |
Publicité (Desktop) Publicité (Mobile) |
| Annie Cyr Conseillère Indépendante Scentsy | Lachine | Aromatherapy |
| Anthony St-Pierre Courtier Immobilier Remax | Québec | Real Estate Offices, Courtier immobilier |
| ARCHIVES IRON MOUNTAIN | Lachine | Information Technologies (IT) |
| Arcs Gas & Chemical Corp | Pierrefonds | Chemicals |
| Arena Pizzeria | Lachine | Pizza & Pizzerias |
| Arena Tasty Pizzeria Lachine Restaurant | Lachine | Pizza & Pizzerias |
| Argos interprètes et traducteurs | Centre-Ville | Tout Entreprises et services |
| Arrondissement de Lachine | Montréal | Tout Informations générales |
| Arrondissement de Lachine | Lachine | Not Profit, library |
| Art Forge | Lachine | Art Foundries |
