| 10|20 Marketing | Dorval | Button Advertising |
| 1982 Transportation | Dorval | Car & Truck Transporting Companies |
| 24k Auto Inc | Dorval | Auto Body Shop |
| A Fernande Fleuriste | Lemoyne | Artificial Flower & Plant Arrangements, Baskets |
| A Fleuriste Montréal | Montréal | Artificial Flower & Plant Arrangements |
| A P S Aviation Inc | Dorval | Aviation Consultants & Services |
| AB auto | Dorval | Auto Body Shop |
| Abrasicorp & Equipment | Dorval | Abrasives |
| Abrasive Technology N A Inc | Dorval | Abrasives, Tout Entreprises et services |
| Accès pharma chez Walmart | Dorval | Pharmacy |
Publicité (Desktop) Publicité (Mobile) |
| Acier Vanguard Ltée | Dorval | Tout Entreprises et services |
| Acquisio | Brossard | Information Technologies (IT), Tout Informatique et internet |
| Action 500 | Dorval | Tout Arts et divertissement |
| ADVANTECH INC. | Dorval | Aerospace |
| aerial | Montréal | Information Technologies (IT) |
| Aerolineas Argentinas | Montréal | Airlines |
| Aeroneuf Instruments Ltée | Dorval | Aerospace, Aircraft Parts, Engines & Avionics |
| AEROPORT DORVAL/MIRABEL | Dorval | Blue Pages |
| Aerospatiale Kaycee | Dorval | Aircraft Parts, Engines & Avionics |
| Affacturage Canada Inc. | Dorval | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| AiFred | Montréal | Information Technologies (IT) |
| Air Algerie | Dorval | Airline Ticket Agencies |
| Air Canada Cargo | Montréal | Airlines |
| Air Canada Reservations | Montréal | Airlines |
| Air Inuit | Montréal | Airlines |
| Air Inuit | Montréal | Airlines |
| Air Inuit (1985) Ltd | Dorval | Airlines |
| Air Inuit Ltd | Montréal | Aircraft & Private Jet Charter, Airlines |
| Air Inuit Ltd | Dorval | Airlines |
| Air Inuit Ltd | Dorval | Airlines |
Publicité (Desktop) Publicité (Mobile) |
| Air Inuit Ltée | Dorval | Airlines |
| Air Transat | Montréal | Airlines |
| Airbridge International Inc | Montréal | Airlines |
| AIRCRAFT EQUIPMENT & SUPPORT SERVICES | Dorval | Aerospace |
| Airline Network Services | Dorval | Airlines |
| Airline Revenue Management Training Group | Montréal | Airlines |
| Airline Services International Inc | Dorval | Airlines |
| AIRNAV ELECTRONIC | Dorval | Aerospace |
| Airnav Électronique Ltée | Dorval | Tout Entreprises et services |
| Airtrades Transitaires | Dorval | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Airy3D | Montréal | Information Technologies (IT) |
| Alarme Sentinelle | Dorval | Tout Entreprises et services |
| Albatrust - Colocation Data Center | Montréal | Information Technologies (IT) |
| Algolux | Montréal | Information Technologies (IT) |
| Aligo | Montréal | Information Technologies (IT) |
| Alliages Unifiés | Dorval | Tout Entreprises et services |
| Allied Universal Security Services | Dorval | Tout Entreprises et services |
| Alta Material Handling | Dorval | Tout Entreprises et services |
| Altrom/Auto-Camping - Dorval | Dorval | Auto Body Shop Equipment & Supplies |
| Amacor Marketing | Dorval | Tout Commerces au détail |
