| Arena Pizzeria | Lachine | Pizza & Pizzerias |
| Arena Tasty Pizzeria Lachine Restaurant | Lachine | Pizza & Pizzerias |
| Ares Électrique | Montréal | Electricians |
| ARJ Construction | Pointe-Aux-Trembles | Plumbing |
| Armstrong Darling Inc | Anjou | Plumbing |
| Arrondissement de Lachine | Montréal | Tout Informations générales |
| Arrondissement de Lachine | Lachine | Not Profit, library |
| Art Forge | Lachine | Art Foundries |
| ASG Électrique Inc | Montréal | Electricians |
| Ashley's Little Gift Shop | Lachine | Candles |
Publicité (Desktop) Publicité (Mobile) |
| Asolec Électrique inc | Saint-Bruno | Electricians |
| Association des Techniciens en Sant... | Lachine | Tout Entreprises et services |
| Assurance123.ca | Lachine | Tout Entreprises et services |
| Atanas Plomberie Et Chauffage | Montréal | Plumbing |
| Atanas-Plumbing & Heating | Montréal | Plumbing |
| Ateliers Mobiles Compagnie Centrale de Plomberie & Chauffage (1981) Co Ltée | Montréal | Plumbing |
| Atomique Electrique | Montréal | Electricians |
| Audrey Plomberie Chauffage Inc | Montréal | Plumbing |
| Auto Camping | Lachine | Auto Part Manufacturers & Wholesalers |
| Auto Electricite Lmc Enr | Mont-Royal | Electricians |
Publicité (Desktop) Publicité (Mobile) |
| Auto Electricite Sigel Ltee | Montréal | Electricians |
| Auto Kool | Lachine | Auto Part Manufacturers & Wholesalers |
| Auto Shaltas Garage Inc | Lachine | Auto Body Shop |
| Autobus Montroyal Inc | Lachine | Chauffeur Services |
| Automaticash | Lachine | Automated Teller Manufacturers & Wholesalers |
| Automatisation Pike | Mont-Royal | Electricians |
| Autos Internationales Lachine | Lachine | Tout Commerces au détail |
| AV Select | Montréal | Electricians |
| Av-Tech Inc | Anjou | Electricians |
| Avant-Garde Électrique Inc | Montréal | Electricians |
Publicité (Desktop) Publicité (Mobile) |
| Avenant SST Inc | Lachine | Health Services |
| Avenir Plomberie | Montréal | Plumbing |
| Axam Electrique | Montréal | Electricians |
| Aéro-Mag 2000 Inc | Lachine | Aircraft Maintenance, Service & Storage |
| B2R Électricité | Brossard | Electricians |
| Bab | Mont-Royal | Plumbing |
| Back Flow Plumbing | Montréal | Plumbing |
| Backfloshop | Montréal | Plumbing |
| Banyan Électrique 9221-9864 Québec Inc | Pointe-Claire | Electricians |
| Bar Le Griffon | Lachine | Brasseries |
Publicité (Desktop) Publicité (Mobile) |
| Bar Le Griffon | Lachine | Brasseries |
| Bardeco | Lachine | Tout Bars et restaurants |
| Bariatrix Nutrition | Lachine | Tout Entreprises et services |
| Barrette & Associés | Lachine | Tout Entreprises et services |
| Bastien Mario Plomberie Enr | Montréal | Plumbing |
| Baz Électrique | L’ile-Perrot | Electricians |
| Bb Plumbing Supply | Mont-Royal | Plumbing |
| BCD Électrique | Montréal | Electricians |
| BEAUDAR ELECTRIQUE | Pointe-Aux-Trembles | Electricians |
| Bel Egoût Inc | Montréal | Plumbing |
