| 1 Electricien | Montréal | Electricians |
| 123 Plomberie & Chauffage Limite | Montréal | Plumbing |
| 1230 Électroniques | Lachine | Computer Repair & Cleaning |
| 123inkcartridges.ca | Lachine | Camera & Photo Equipment Stores |
| 2D Électriciens Inc | Montréal | Electricians |
| 2Mc Plumbing Montréal Ltd. | Montréal | Plumbing |
| 8835 Québec Inc. | Montréal | Electricians |
| 911 Électrique | Laval | Electricians |
| 9132-1000 Québec Inc | Lachine | Business & Trade Organizations |
| 9258 3228 Québec Inc | Montréal | Plumbing |
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| 9334-4349 Quebec Inc | Lachine | Pizza & Pizzerias |
| A & L Plomberie Inc | Laval | Plumbing |
| A Asselin & Fils Inc | Lachine | Plumbing |
| A C Forest Inc | Montréal | Plumbing |
| A C L Inc | Montréal | Plumbing |
| A M A Electrique Inc | Montréal | Electricians |
| A Merulla Plomberie Inc | Montréal | Plumbing |
| A N J Electrique | Montréal | Electricians |
| A Pex Discount Inc | Lachine | Bedding & Linens |
| A Prince Entrepreneur Electricien Inc | Montréal | Electricians |
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| A Roy. Dementellement | Anjou | Plumbing |
| A Tremblay Électrique Inc | Ménard | Electricians |
| AAA Electrique/Electric Inc | Montréal | Electricians |
| Aai Encanteurs Assoc Intl | Lachine | Auctions |
| Abat John | Montréal | Electricians |
| Abat-Jour Idéal | Montréal | Electricians |
| ABB Inc | Montréal | Electricians |
| ABB Inc | Montréal | Electricians |
| ABC Drain | Montréal | Plumbing |
| ABC Inc | Montréal | Plumbing |
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| Abe Cohen Plumbing & Heating Inc | Montréal | Plumbing |
| Abe Cohen Plumbing Heating Inc | Montréal | Plumbing |
| Abel Excavation Enr | Saint-Léonard | Plumbing |
| Absolut Electric | Montréal | Electricians |
| Abu-Lasia/ Matamin | Lachine | Baked Goods Wholesalers |
| Accessoires de Plomberie Ahuntsic Inc | Montréal | Plumbing |
| Accessoires Rose Blanche | Lachine | Bakery Equipment, Bakery Supplies |
| Accord Expositions | Lachine | Tout Entreprises et services |
| ACGM Plomberie & Chauffage | Montréal | Plumbing |
| Acier Lachine Inc | Lachine | Aluminum |
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| Actron Electrique 2000 Inc | Lasalle | Electricians |
| Adco Electrique Inc | P A T | Electricians |
| ADI Electrique - Électricien Commercial et Industriel Saint-Laurent | Montréal | Electricians |
| ADI Global Distribution | Lachine | Tout Entreprises et services |
| ADI Électrique - Électricien Commercial Montréal | Montréal | Electricians |
| ADM Canada | Lachine | Tout Entreprises et services |
| ADS Électrique Inc | Montréal | Electricians |
| ADT Plomberie | Montréal | Plumbing |
| AF Electrique | Montréal | Electricians |
| Affiliated Sport Group | Lachine | Tout Entreprises et services |
