| 1230 Électroniques | Lachine | Computer Repair & Cleaning |
| 123inkcartridges.ca | Lachine | Camera & Photo Equipment Stores |
| 123renovation | Montréal | Home Improvement |
| 3/4 oz. Tonic Maison | Villeray | Tout Commerces au détail |
| 360 du Bâtiment | Anjou | Home Improvement |
| 8D Technologies | Montréal | Information Technologies (IT) |
| 9132-1000 Québec Inc | Lachine | Business & Trade Organizations |
| 92095025 Quebec Inc | Montréal | Home Improvement |
| 9334-4349 Quebec Inc | Lachine | Pizza & Pizzerias |
| A + Solutions Home Healthcare Inc | Montréal | Care Homes |
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| A Asselin & Fils Inc | Lachine | Plumbing |
| A Chabot Rénovation | Montréal | Home Improvement |
| A F Renovations | Montréal | Home Improvement |
| A Pex Discount Inc | Lachine | Bedding & Linens |
| A.P. PACIFIC Nettoyage de Tapis | Laval | Cleaners (Buildings & Carpets), Home Decoration & Maintenance |
| A1 Réno Inc | Châteauguay | Home Improvement |
| AAA1 RĂ©nov & Plus | Sabrevois | Home Improvement |
| Aai Encanteurs Assoc Intl | Lachine | Auctions |
| Abitec Développements | Montréal | Home Improvement |
| ABO Construction | Dollard Des Ormeaux | Home Improvement |
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| Abra Electronics Corp. | Montréal | Tout Commerces au détail, Tout Entreprises et services |
| Abraham Renovation | Montréal | Home Improvement |
| Abrite-Toit | Montréal | Home Improvement |
| Absolutely Renovations | Montréal | Home Improvement |
| Abu-Lasia/ Matamin | Lachine | Baked Goods Wholesalers |
| Accessoires Rose Blanche | Lachine | Bakery Equipment, Bakery Supplies |
| Acceuil Francois Inc | Saint-LĂ©onard | Home Improvement |
| Accord Expositions | Lachine | Tout Entreprises et services |
| Accès Habitation | Saint-Jérôme | Tout Entreprises et services |
| Accès Services Santé - domicile | Longueuil | Care Homes, Clinics |
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| ACF Construction | Montréal | Home Improvement |
| Acier Lachine Inc | Lachine | Aluminum |
| Adag Consultants Inc | Montréal | Home Improvement |
| Adagio Massage | Montréal | Tout Arts et divertissement |
| ADI Global Distribution | Lachine | Tout Entreprises et services |
| ADM Canada | Lachine | Tout Entreprises et services |
| AETERNA FUNERAL COMPLEX | Montréal | Funeral Homes, Services |
| AF Rénovations Toiture | Montréal | Home Improvement |
| Affiliated Sport Group | Lachine | Tout Entreprises et services |
| Agence Imapro Inc | Lachine | Business & Trade Organizations |
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| Agence Privée ParaSanté | Montréal | Care Homes |
| Agences Zénith Inc | Montréal | Home Improvement |
| Agrandissement CBI Inc | Terrebonne | Home Improvement |
| Agrigourmet | Montréal | Tout Commerces au détail |
| AIDA Distribution | Lachine | Beverage Distributors & Bottlers |
| Aide Inc | Montréal | Care Homes |
| Aide à Domicile O | Montréal | Care Homes |
| Aikido Dojo La Forge | Montréal | Tout Enseignement et savoir |
| Air Pro Transport 2009 | Lachine | Air Cargo Service |
| AJK Renovations | La Prairie | Home Improvement |
