| AIR IMEX Ltée | Montréal | Aerial Photographers |
| AIR RESEARCH TECHNOLOGY INC. | Montréal | Aerospace |
| Air View Concept | Brossard | Aerial Photographers |
| AIRCRAFT EQUIPMENT & SUPPORT SERVICES | Dorval | Aerospace |
| AIRNAV ELECTRONIC | Dorval | Aerospace |
| Airnav Électronique Ltée | Dorval | Tout Entreprises et services |
| Airviews | Montréal | Aerial Photographers |
| Airviews - Imageries Aériennes | Montréal | Aerial Photographers |
| Alcius | Longueuil | Advertising Agencies |
| Align Aerospace | Boucherville | Aviation Consultants & Services |
Publicité (Desktop) Publicité (Mobile) |
| 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 |
| 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 |
Publicité (Desktop) Publicité (Mobile) |
| Aod Marketing | Montréal | Advertising Agencies |
| AP&C Revêtements et Poudres Avancées | Montréal | Aerospace |
| AP&C Revêtements et Poudres Avancées | Montréal | Aerospace |
| Apex Aérospatial Inc | Montréal | Aircraft Maintenance, Service & Storage |
| AQUACOUPE TECHNOLOGY INC. | Mirabel | Aerospace |
| Artcom Société De Commercialisation Ltée | Laval | Advertising Agencies |
| ARTEC TECHNOLOGIES | Montréal | Aerospace |
| Artlogic | Montréal | Advertising Agencies |
| ASSYSTEM PRODUCT ENGINEERING CANADA | Montréal | Aerospace |
| ATD DESIGN SERVICES (4071468 CANADA INC.) | Sainte-Geneviève | Aerospace |
Publicité (Desktop) Publicité (Mobile) |
| Audisoft Technologie Inc | Boucherville | Advertising Agencies |
| Auto Occasion Journal | Saint-Léonard | Advertising Agencies |
| Avalanche Marketing Inc. | Longueuil | Advertising Agencies |
| AVERNA TECHNOLOGIES INC. | Montréal | Aerospace |
| AVIALL CANADA LIMITED | Boisbriand | Aerospace |
| AVIANOR | Mirabel | Aerospace |
| Avianor Inc. | Mirabel | Tout Entreprises et services |
| AVIATION MBBH Inc. | Dorval | Aerospace |
| AVIATRON INC. | Montréal | Aerospace |
| Avior Integrated Products | Laval | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| AVIOR INTEGRATED PRODUCTS INC. (LAVAL) | Laval | Aerospace |
| AVITEC (OUTILLAGES) INC. | Montréal | Aerospace |
| AÉRO INNOVATION INC. | Saint-Mathieu-De-Beloeil | Aerospace |
| AÉRO TEKNIC INC. | Saint-Hubert | Aerospace |
| AÉRONAUTIQUE TMH CANADA INC. | Boisbriand | Aerospace |
| Aéro MAG 2000 | Montréal | Tout Entreprises et services |
| Aéro Montréal | Montréal | Tout Entreprises et services |
| Aéro Mécachrome Inc. | Montréal | Tout Entreprises et services |
| Aéro Portail | Montréal | Airlines |
| Aéro-Mag 2000 Inc | Lachine | Aircraft Maintenance, Service & Storage |
