| 2MORO | Montréal | Aerospace |
| A.E. PETSCHE CANADA, INC. | Kirkland | Aerospace |
| AAA Canada | Montréal | Aerospace, Aircraft Maintenance, Service & Storage |
| ABIPA CANADA INC. | Laval | Aerospace |
| Abrasive Technology N A Inc | Dorval | Abrasives, Tout Entreprises et services |
| Acadia | Montréal | Computer & Technology Assistance Programs |
| Acadia | Montréal | Computer & Technology Assistance Programs |
| Accenture | Montréal | Information Technologies (IT) |
| ACCEO Solutions | Montréal | Information Technologies (IT), Tout Informatique et internet |
| Acces Physio Collège Charles-Lemoyne | Delson | Physiotherapy |
Publicité (Desktop) Publicité (Mobile) |
| Acupuncteure Certifiée Pascale Tremblay | Delson | Acupuncturists |
| AD OPT | Montréal | Aerospace |
| ADACEL INC. | Brossard | Aerospace |
| Adl Esthétique Automobile | Delson | Car Detailing |
| ADP Canada R-L | Montréal | Information Technologies (IT) |
| Advanceit Financial Corp | Montréal | Computer Networking |
| Advanceit Financial Corp | Westmount | Computer Networking |
| ADVANTECH INC. | Dorval | Aerospace |
| AERONAV NAVIGATION INTERNATIONAL | Pointe-Claire | Aerospace |
| Aeroneuf Instruments Ltée | Dorval | Aerospace, Aircraft Parts, Engines & Avionics |
Publicité (Desktop) Publicité (Mobile) |
| Aerospace Concepts of Canada Inc | Montréal | Aviation Consultants & Services |
| Aerospace Development Corp | Montréal | Aircraft & Private Jet Charter |
| Aerospace Group | Montréal | Aircraft Dealers |
| AEROSPACE WELDING | Blainville | Aerospace |
| Aerospace Welding Inc | Blainville | Tout Entreprises et services, Aviation Consultants & Services |
| AEROSPHERE | Pointe-Claire | Aerospace |
| Aerosystems International Inc. | Montréal | Aerospace, Tout Entreprises et services |
| Aiguisatek | Delson | Tout Entreprises et services |
| Air Data Inc | Mont-Royal | Aerospace, Aircraft Parts, Engines & Avionics, Tout Entreprises et services |
| AIR RESEARCH TECHNOLOGY INC. | Montréal | Aerospace |
Publicité (Desktop) Publicité (Mobile) |
| AIRCRAFT EQUIPMENT & SUPPORT SERVICES | Dorval | Aerospace |
| AIRNAV ELECTRONIC | Dorval | Aerospace |
| Align Aerospace | Boucherville | Aviation Consultants & Services |
| Alipro-Mistral Ingrédients Inc | Delson | Agri-food |
| Alphacasting Inc. | Montréal | Aerospace, Tout Entreprises et services |
| ALSIM | Montréal | Aerospace |
| ALTA PRÉCISION INC. | Anjou | Aerospace |
| ALTITUDE AEROSPACE | Montréal | Aerospace |
| Altitude Aerospace Inc | Montréal | Aircraft Maintenance, Service & Storage |
| Altitude Aerospace Inc | Montréal | Aircraft Maintenance, Service & Storage |
Publicité (Desktop) Publicité (Mobile) |
| ALUBOX (DIVISION DE JE LORTIE COMPAGNIE LTÉE) | Montréal | Aerospace |
| AMESYS | Montréal | Aerospace |
| AMPHENOL AIR LB NORTH AMERICA INC. | Saint-Hubert | Aerospace |
| AMRIKART R.C. INC. | Boucherville | Aerospace |
| AP&C Revêtements et Poudres Avancées | Montréal | Aerospace |
| AP&C Revêtements et Poudres Avancées | Montréal | Aerospace |
| Apex Performance | Delson | Fitness Gyms |
| AQUACOUPE TECHNOLOGY INC. | Mirabel | Aerospace |
| Ari Financial Services Inc | Laval | Car Leasing |
| Aroua Tek Inc | Delson | Appliance Manufacturers & Wholesalers |
