| Abbvie (Corporation) | Montréal | Life Sciences and Health Technologies (LSHT) |
| AbbVie Corporation | Montréal | Life Sciences and Health Technologies (LSHT) |
| Abc | Mont-Royal | Cable TV Providers |
| ABC Distribution | Montréal | Tout Entreprises et services |
| ABC Drain | Montréal | Plumbing |
| ABC Gestion Parasitaire | Ville-Mont-Royal | Tout Commerces au détail |
| ABC Inc | Montréal | Plumbing |
| ABC Paysagement | Montréal | Landscaping |
| ABC Sablage Richard | Montréal | Flooring |
| ABC Sablage Richard | Montréal | Flooring |
Publicité (Desktop) Publicité (Mobile) |
| ABC Service D'Arbre | Montréal | Landscaping |
| Abdala Hasan | Montréal | Artists |
| Abe Cohen Plumbing & Heating Inc | Montréal | Plumbing |
| Abe Cohen Plumbing Heating Inc | Montréal | Plumbing |
| Abeille Déco-Entrepreneurs | Montréal | Painters |
| Abel Bwem CPA | Montréal | Accounting Services |
| Abel Traiteur | Montréal | Caterers |
| ABEONA SYSTEMS INC. | Montréal | Life Sciences and Health Technologies (LSHT) |
| Abilis Solutions | Montréal | Information Technologies (IT) |
| ABIPA CANADA INC. | Laval | Aerospace |
Publicité (Desktop) Publicité (Mobile) |
| Abitec Développements | Montréal | Home Improvement |
| Able Chinese Acupuncture Clinic | Montréal | Acupuncturists, Alternative Health |
| Abnakaccbi | Montréal | Airline Ticket Agencies |
| Abou-Nasr Mona Dr | Saint-Léonard | Automobiles, Dentists, Not Profit |
| ABP | Montréal | Tout Commerces au détail, Tout Entreprises et services |
| Abra-Kad-Abra Collection | Montréal | Beads, Tout Commerces au détail, Beads & Pearls |
| Abraham Renovation | Montréal | Home Improvement |
| Abrahim Can | Montréal | Cans |
| Abrite-Toit | Montréal | Home Improvement |
| Absolument Montreal B&B | Montréal | Bed & Breakfasts |
Publicité (Desktop) Publicité (Mobile) |
| ABSOLUT DISCO | Montréal | Disc-Jockeys, Entertainment |
| Absolut Electric | Montréal | Electricians |
| Absolutely Renovations | Montréal | Home Improvement |
| Abundanceofrishness | Montréal | Artists |
| AC Clinique | Montréal | Acupuncturists |
| Ac Clinique Chinoise Yun Zhang | Montréal | Alternative Health |
| AC Clinique d'Acupuncture Chinoise Yun Zhang | Montréal | Acupuncturists, Alternative Health |
| Academia Ubisoft | Montréal | Tout Enseignement et savoir |
| Academos Cybermentorat | Montréal | Tout Enseignement et savoir |
| Academy Hairstorm | Montréal | Beauty & Fitness, Hairdressers & Beauty Salons |
Publicité (Desktop) Publicité (Mobile) |
| Acadia | Montréal | Computer & Technology Assistance Programs |
| Acadia | Montréal | Computer & Technology Assistance Programs |
| Acadia Apartments | Montréal | Apartment Rental |
| Académie Baroque | Montréal | Commercial Artists |
| Académie Baseball Canada | Montréal | Baseball Clubs & Lessons |
| Académie canadienne du cinéma et de la télévision | Quartier Latin Et Centre-Sud | Tout Arts et divertissement, Tout Médias montréalais |
| Académie Coiffure et Esthétique Hair Masters | Montréal | Beauty & Fitness, Hairdressers & Beauty Salons |
| Académie Culinaire | Montréal | Tout Enseignement et savoir |
| Académie de Musique de Montréal | Montréal | Tout Enseignement et savoir |
| Académie de Tennis du Sud Ouest Mon... | Saint-Henri | Tout Enseignement et savoir |
