| 10Plé | Sherbrooke | Advertising Agencies |
| 10|20 Marketing | Dorval | Button Advertising |
| 1982 Transportation | Dorval | Car & Truck Transporting Companies |
| 24k Auto Inc | Dorval | Auto Body Shop |
| 37e AVENUE | Montréal | Advertising Agencies |
| 9007-8320 Québec Inc | Anjou | Advertising Agencies |
| A C Riley Communications | Montréal | Advertising Agencies |
| A P S Aviation Inc | Dorval | Aviation Consultants & Services |
| A+Quick Socal Media Business | Montréal | Advertising Agencies |
| AB auto | Dorval | Auto Body Shop |
Publicité (Desktop) Publicité (Mobile) |
| Abrasicorp & Equipment | Dorval | Abrasives |
| Abrasive Technology N A Inc | Dorval | Abrasives, Tout Entreprises et services |
| Accroche Pub | Brossard | Advertising Agencies |
| Accès pharma chez Walmart | Dorval | Pharmacy |
| Acier Vanguard Ltée | Dorval | Tout Entreprises et services |
| Action 500 | Dorval | Tout Arts et divertissement |
| ADN Laboratoire Graphique | Montréal | Advertising Agencies |
| ADVANTECH INC. | Dorval | Aerospace |
| Advend | Montréal | Advertising Agencies |
| Adzura | Montréal | Advertising Agencies |
Publicité (Desktop) Publicité (Mobile) |
| Aerogram The Aerial MEDIA Aérien | Saint-Hubert | Aerial Advertising |
| 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 |
| Affichage | Brossard | Advertising Agencies |
| Afrodeal | Montréal | Advertising Agencies |
| Agence & Co | Anjou | Advertising Agencies |
| Agence Donaghy | Longueuil | Advertising Agencies |
| Agence Impak Media Inc | Montréal | Advertising Agencies |
Publicité (Desktop) Publicité (Mobile) |
| Agence M S Enr | Montréal | Advertising Agencies |
| Agence OZ Pubilicité Communication Web | Saint-Bruno | Advertising Agencies |
| Ahidjo Design | Montréal | Advertising Agencies |
| Air Algerie | Dorval | Airline Ticket Agencies |
| Air Inuit (1985) Ltd | Dorval | Airlines |
| Air Inuit Ltd | Dorval | Airlines |
| Air Inuit Ltd | Dorval | Airlines |
| Air Inuit Ltée | Dorval | Airlines |
| AIRCRAFT EQUIPMENT & SUPPORT SERVICES | Dorval | Aerospace |
| Airline Network Services | Dorval | Airlines |
Publicité (Desktop) Publicité (Mobile) |
| 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 |
| Alarme Sentinelle | Dorval | Tout Entreprises et services |
| Alcius | Longueuil | Advertising Agencies |
| 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 |
