| AirScience | Pointe-Saint-Charles | Tout Entreprises et services |
| Airtec Contrôle | Saint-Hubert | Air Conditioning Systems & Parts |
| Airtechni Inc. | Montréal | Tout Entreprises et services |
| Airtek Ltd-Ltée | Montréal | Abrasives, Tout Entreprises et services |
| Airy3D | Montréal | Information Technologies (IT) |
| AJ Hobbins | Saint-Luc | aj |
| Aj Tardif | Saint-Lambert | aj |
| AJ Tech Café | Laval | Coffee Break Services & Supplies |
| AJA Construction Inc | Saint-Hubert | Bathroom Renovations |
| Akilon Technologies Inc | Longueuil | Computer Networking |
Publicité (Desktop) Publicité (Mobile) |
| AkioSoft | Ouest | Life Sciences and Health Technologies (LSHT) |
| AKKA Groupe Amérique du Nord | Montréal | Life Sciences and Health Technologies (LSHT) |
| Akzo Nobel Peintures Ltée | Saint-Jerome | Tout Entreprises et services |
| Alaby Joseph Dr | Saint-Lambert | Dentists |
| Alain Boudrias Consultant | Montréal | Architectural Technologists |
| Alain Carle | Montréal | Architectural Technologists |
| Alain Carrosserie | Terrebonne | Auto Body Shop |
| Alain Cunha Da Silva | Stoneham-Et-Tewkesbury | da |
| Alain Delorme Urbaniste | Brossard | Analytical & Testing Laboratories |
| Alain Esthétique Auto | Montréal | Automobiles, car Dealers |
Publicité (Desktop) Publicité (Mobile) |
| Alarme Doven | Saint-Hubert | Tout Entreprises et services |
| Alarme Ehco-Matic Inc. | Terrebonne | Tout Entreprises et services |
| Alarme Provinciale | Abitibi-Témiscamingue | Tout Entreprises et services |
| Alarme Securi-Tek | Montréal | Car Alarm Systems |
| Alarmes et Antivols Sécurimax Inc | Saint-Jérôme | Car Alarm Systems |
| Alaya Care Inc (Alaya Soins Inc) | Laurent | Life Sciences and Health Technologies (LSHT) |
| Alayacare | Québec | Life Sciences and Health Technologies (LSHT) |
| Albatrust - Colocation Data Center | Montréal | Information Technologies (IT) |
| Albuca | Pointe-Claire | Life Sciences and Health Technologies (LSHT) |
| Alcatel-Lucent Canada | Montréal | Information Technologies (IT) |
Publicité (Desktop) Publicité (Mobile) |
| Alchemy 24 | Montréal | Information Technologies (IT) |
| ALCiE Integrated Business Solutions | Montréal | Tout Informatique et internet |
| Alcoa innovation | Montréal | Clean Technologies |
| Aldea Solutions Inc | Montréal | Information Technologies (IT) |
| Aldeavision Inc. | Montréal | Tout Entreprises et services |
| ALDO | Saint-Bruno-De-Montarville | Boots |
| Aleco | Saint-Léonard | Building Contractors |
| Alerte Aménagement Paysager | Saint-Bruno | Landscaping |
| Alerte-Café Services Techniques Inc. | Montréal | Coffee Machines & Roasting Equipment |
| Alethia Biotherapeutics Inc. | Montréal | Life Sciences and Health Technologies (LSHT) |
Publicité (Desktop) Publicité (Mobile) |
| Alethia Biothérapeutiques Inc. | Montréal | Life Sciences and Health Technologies (LSHT) |
| Alex Berthiaume Et Fils | Vimont | All-Terrain Vehicles |
| Alexander Technique Montreal | Montréal | Alternative Health |
| Alexandra's Babysitting Services | Saint-Léonard | Babysitting Services |
| Alexandra's Nostalgic Memorabilia | Montréal | Antique Dealers |
| Alexandre Bernier Architecte | Montréal | Architectural Technologists |
| Alfa Clinique Médicale | Saint-Constant | Medical Clinics |
| Alfohno Pizzaria | Montréal | Pizza & Pizzerias |
| Algo Design | Laval | Information Technologies (IT) |
| Algolux | Montréal | Information Technologies (IT) |
