| Aire D3 Inc | Saint-Amable | Asbestos Removal & Abatement |
| Airex Industries | Laval | Life Sciences and Health Technologies (LSHT), Tout Entreprises et services, Air Conditioning Contractors |
| Airex Énergie | Laval | Life Sciences and Health Technologies (LSHT) |
| Airgel Inc | Longueuil | Air Conditioning Contractors |
| Airline Network Services | Dorval | Airlines |
| Airline Revenue Management Training Group | Montréal | Airlines |
| Airline Services International Inc | Dorval | Airlines |
| Airmax Climatisation | Sainte-Catherine | Air Purifiers |
| Airmax Environnement | Montréal | Analytical & Testing Laboratories |
| Airmec Climatisation | Longueuil | Air Conditioning Contractors |
Publicité (Desktop) Publicité (Mobile) |
| AIRNAV ELECTRONIC | Dorval | Aerospace |
| Airnav Électronique Ltée | Dorval | Tout Entreprises et services |
| Airomax | Longueuil | Tout Entreprises et services |
| Airpro Confort inc. | Saint-Hubert | Air Conditioning Contractors |
| Airpure Shop | Montréal | Air Conditioning Contractors |
| AirScience | Pointe-Saint-Charles | Tout Entreprises et services |
| Airtec Contrôle | Saint-Hubert | Air Conditioning Systems & Parts |
| Airtech Armstrong | Lasalle | Air Purifiers |
| Airtechni Inc. | Montréal | Tout Entreprises et services |
| Airteck Propulsion | Longueuil | Air Conditioning Contractors |
Publicité (Desktop) Publicité (Mobile) |
| Airtek Ltd-Ltée | Montréal | Abrasives, Tout Entreprises et services |
| Airtop-Ventilation | Montréal | Cleaning Services, Cleaning Service |
| Airtrades Transitaires | Dorval | Tout Entreprises et services |
| Airviews | Montréal | Aerial Photographers |
| Airviews - Imageries Aériennes | Montréal | Aerial Photographers |
| Airy3D | Montréal | Information Technologies (IT) |
| Aj Tremblay | Boucherville | aj |
| ALDO Accessoires | Montréal | Air Conditioning Systems & Parts |
| Alerte 2000 Inc. | Boucherville | Tout Entreprises et services |
| Alexandre Boucher Parlardy Courtier Immobilier R ésidentiel | Lévis | Real Estate Offices, Courtier immobilier |
Publicité (Desktop) Publicité (Mobile) |
| Align Aerospace | Boucherville | Aviation Consultants & Services |
| Aliments Johnvince | Boucherville | Agri-food |
| Aliments Newly Weds | Boucherville | Agri-food |
| Alpharegul | Boucherville | Tout Entreprises et services |
| Altitude Aerospace Inc | Montréal | Aircraft Maintenance, Service & Storage |
| Altitude Aerospace Inc | Montréal | Aircraft Maintenance, Service & Storage |
| Amc Canada | Montréal | Airlines |
| American Airlines | Dorval | Airlines |
| American Airlines Inc | Hartford Conn | Air Cargo Service, Airlines |
| Ameublement Simard Inc | Boucherville | Furniture Stores |
Publicité (Desktop) Publicité (Mobile) |
| AMP Réfrigération | Saint-Jean | Air Conditioning Contractors |
| 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 |
| 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 |
| Annabelle Boucher | Rimouski | Breastfeeding Information & Supplies |
