| 10|20 Marketing | Dorval | Button Advertising |
| 1982 Transportation | Dorval | Car & Truck Transporting Companies |
| 24k Auto Inc | Dorval | Auto Body Shop |
| 2G Solutions | Montréal | Tout Informatique et internet |
| 99andbeyond (anciennement Solutions CognitiveChem inc.) | Dépatie | Life Sciences and Health Technologies (LSHT) |
| A + Solutions Home Healthcare Inc | Montréal | Care Homes |
| A B X Télécommunication | Verdun | Cable Installation, Splicing & Detection |
| A B X Télécommunications | Verdun | Cable Installation, Splicing & Detection |
| A P S Aviation Inc | Dorval | Aviation Consultants & Services |
| A V Solutions | Montréal | Audiovisual Equipment & Supplies, Audiovisual Equipment & Supplies Rental |
Publicité (Desktop) Publicité (Mobile) |
| AB auto | Dorval | Auto Body Shop |
| Abc | Mont-Royal | Cable TV Providers |
| ABF Systèmes Inc. | Boucherville | Tout Entreprises et services |
| Abilis Solutions | Centre-Ville | Tout Informatique et internet |
| Abilis Solutions | Montréal | Information Technologies (IT) |
| Abrasicorp & Equipment | Dorval | Abrasives |
| Abrasive Technology N A Inc | Dorval | Abrasives, Tout Entreprises et services |
| ACCEO Solutions | Montréal | Information Technologies (IT), Tout Informatique et internet |
| ACCEO Solutions | Montréal | Computer Consultants |
| ACCEO Solutions Inc. | Montréal | Tout Informatique et internet |
Publicité (Desktop) Publicité (Mobile) |
| Accounting and Tax Solutions | Montréal | Bookkeeping Software & Accounting Systems |
| Accès pharma chez Walmart | Dorval | Pharmacy |
| Acier Vanguard Ltée | Dorval | Tout Entreprises et services |
| ACRoyal | Saint-Léonard | Tout Entreprises et services |
| Action 500 | Dorval | Tout Arts et divertissement |
| Actweb Solutions | Petite-Patrie | Tout Commerces au détail, Tout Entreprises et services |
| ADVANTECH INC. | Dorval | Aerospace |
| Aerolineas Argentinas | Montréal | Airlines |
| Aeroneuf Instruments Ltée | Dorval | Aerospace, Aircraft Parts, Engines & Avionics |
| AEROPORT DORVAL/MIRABEL | Dorval | Blue Pages |
Publicité (Desktop) Publicité (Mobile) |
| Aerospatiale Kaycee | Dorval | Aircraft Parts, Engines & Avionics |
| Affacturage Canada Inc. | Dorval | Tout Entreprises et services |
| Affichage Solutions | Vaudreuil-Dorion | Tout Entreprises et services |
| Ah!Com | Brossard | Cable TV Providers |
| 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 |
Publicité (Desktop) Publicité (Mobile) |
| Air Inuit Ltd | Montréal | Aircraft & Private Jet Charter, Airlines |
| Air Inuit Ltd | Dorval | Airlines |
| Air Inuit Ltd | Dorval | Airlines |
| 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 |
