| AMPHENOL AIR LB NORTH AMERICA INC. | Saint-Hubert | Aerospace |
| Amphenol Air LB North America, Inc | Brossard | Tout Entreprises et services |
| AMRIKART R.C. INC. | Boucherville | Aerospace |
| Andre Poulin | Longueuil | Building Contractors |
| André Lemieux Climatisation | Brossard | Air Conditioning Contractors |
| Ang Heating Products Inc | Montréal | Air Conditioning Contractors |
| Angel Climatisation Inc | Pierrefonds | Air Purifiers |
| Anixter Canada | Boucherville | Information Technologies (IT) |
| Anjuna Airline Solutions-Canada | Montréal | Airlines |
| Annexair Inc | Montréal | Air Conditioning Systems & Parts |
Publicité (Desktop) Publicité (Mobile) |
| Annie Perron | Boucherville | Balconies |
| Anvil International Canada | Montréal | Building Contractors |
| APCHQ Montréal Métropolitain | Montréal | Building Contractors |
| Apex Aérospatial Inc | Montréal | Aircraft Maintenance, Service & Storage |
| APL Construction | Boucherville | Building Contractors |
| APS Aviation Inc | Montréal | Airlines |
| Aquatech BM | Boucherville | Business & Trade Organizations |
| Aquaxpert Inc | Greenfield Park | Air Conditioning Contractors |
| Armada Revêtement Extérieur et Toiture | Montréal | Building Contractors |
| Armoire & Vanité L M Inc | Boucherville | Cabinet Makers |
Publicité (Desktop) Publicité (Mobile) |
| Armoires Cuisines Action | Boucherville | Tout Entreprises et services |
| Armoires Nouveau Concept | Boucherville | Cabinet Makers |
| Art Dozé | Boucherville | Beauty & Fitness, Hairdressers & Beauty Salons |
| Art Spécialisée En Construction Inc. | Côte Saint-Luc | Building Contractors |
| Artisanat M | Boucherville | Furniture Stores |
| Ascendie Goliath | Boucherville | Automatic Fire Sprinkler Systems |
| ASM MOTOSPORT | Saint-Jean-Sur-Richelieu | Aircraft & Flight Schools |
| Association béton Québec | Boucherville | Tout Entreprises et services |
| Association de l'enveloppe et des r... | Boucherville | Tout Entreprises et services |
| Association des scouts du Canada | Villeray | Tout Arts et divertissement, Tout Communautés et société |
Publicité (Desktop) Publicité (Mobile) |
| Association pour l'air pur (ALAP) | Verchères | Tout Communautés et société |
| Atd Design & Manufacturing Services Inc. | Montréal | Aircraft Parts, Engines & Avionics |
| Atelier de Dessin & de Peinture Linda Boyte | Boucherville | Art Schools |
| Atelier de dessin et de peinture Li... | Boucherville | Tout Arts et divertissement, Tout Enseignement et savoir |
| Atelier De Gepetto | Boucherville | Tout Commerces au détail |
| Ats | Montréal | Air Cargo Service |
| Audisoft Technologie Inc | Boucherville | Advertising Agencies |
| Audrey Beauté Esthétique | Boucherville | Health and Beauty |
| Autocam | Boucherville | Tire Shop |
| Automation LCV | Boucherville | Automation Systems & Equipment |
Publicité (Desktop) Publicité (Mobile) |
| Automation Plan | Boucherville | Automation Systems & Equipment |
| Aviall Canada Ltd | Boisbriand | Aircraft Parts, Engines & Avionics |
| Aviation B L Inc | Brossard | Aircraft & Flight Schools |
| Aviation Led | Montréal | Aircraft Maintenance, Service & Storage |
| Aviation Zenith | Saint-Hubert | Aircraft Parts, Engines & Avionics |
| Avior Integrated Products Inc | Laval | Aircraft Parts, Engines & Avionics |
| Avotus Corporation | Boucherville | Information Technologies (IT) |
| Avsup Aviation Support | Sainte-Thérèse | Airlines |
| Azelis canada | Boucherville | Chemicals |
| Aéro Portail | Montréal | Airlines |
