| A + Solutions Home Healthcare Inc | Montréal | Care Homes |
| A Couture | Lasalle | Couture, COUTURE |
| A Couture | Lasalle | Couture, COUTURE |
| AC Lasalle | Sainte-Catherine | Cabinet Makers |
| Accès Services Santé - domicile | Longueuil | Care Homes, Clinics |
| Actron Electrique 2000 Inc | Lasalle | Electricians |
| ADT Déménagement et Entreposage | Lasalle | Tout Entreprises et services |
| Adven | Lasalle | Airline Ticket Agencies |
| AETERNA FUNERAL COMPLEX | Montréal | Funeral Homes, Services |
| Agence de Recouvrement Lasalle Inc | Montréal | Collection Agencies |
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| Agence Privée ParaSanté | Montréal | Care Homes |
| Agi Électrique 9377-0295 Québec Inc | Lasalle | Electricians |
| Aide Inc | Montréal | Care Homes |
| Aide à Domicile O | Montréal | Care Homes |
| Airtech Armstrong | Lasalle | Air Purifiers |
| AJM Unifer Soudure | Lasalle | Balconies |
| Allard & Ricard Inc | Lasalle | Plumbing |
| Allard Technologies Inc. | Lasalle | Tout Entreprises et services |
| Alliance Santé Soutien a Domicile | Longueuil | Care Homes |
| Allie Sante | Montréal | Care Homes |
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| Allion Elementary School | Lasalle | Tout Enseignement et savoir |
| Alpha plantes | Lasalle | Tout Commerces au détail |
| Alternativa Massage & Rehabilitation | Lasalle | Massage Therapy |
| Anderson Inc | Lasalle | Bakery Equipment, Bakery Supplies |
| André Ferron, sculpteur | Lasalle | Tout Arts et divertissement |
| Ann Comtois infirmière Auxiliaire | Montréal | Care Homes |
| Aramark Canada Ltée | Lasalle | Coffee Machines & Roasting Equipment |
| Aramark Refreshment | Lasalle | Coffee Break Services & Supplies |
| Architecture Baccanale | Lasalle | Architectural & Construction Specifications |
| Armoires De Cuisine Et Comptoirs Lasalle | Greenfield Park | Beds |
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| Arnold Paintball | Lasalle | Painters |
| Arrondissement Lasalle | Lasalle | Tout Informations générales |
| Aréna Jacques-Lemaire | Lasalle | Arenas, Stadiums & Athletic Fields |
| ASI Group Financier Inc | Lasalle | Car Insurance |
| Aspirateurs Centrals Lasalle Electrolux Cyclovac Beam Epurair | Lasalle | Central Vacuum Systems |
| Aspirateurs Lasalle | Lasalle | Central Vacuum Systems |
| Association J'écris ma vie | Lasalle | Tout Enseignement et savoir |
| Assurance Jean-Claude Duchamps | Lasalle | Car Insurance |
| Atelier D'Art Des Rapides | Lasalle | Art Schools |
| Ateliers M Driveshaft Inc | Lasalle | Tout Commerces au détail |
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| Attaches & Raccords Aims Inc. | Lasalle | Tout Entreprises et services |
| Auto Carmatch | Lasalle | Automobiles, car Dealers |
| Autolift Collision Inc | Lasalle | Auto Body Shop |
| Axis Lighting Inc. | Lasalle | Tout Entreprises et services |
| Axyaplus | Lasalle | Cleaning Services, Cleaning Service |
| Az Zn | Lasalle | az |
| Azalea Laser Clinic | Lasalle | Beauty Institutes |
| Bain Dépôt Montréal (LaSalle) | Lasalle | Bathroom Accessories |
| Balcon Idéal | Lasalle | Tout Entreprises et services |
| Balcons Verdun | Lasalle | Balconies |
