| 10|20 Marketing | Dorval | Button Advertising |
| 1982 Transportation | Dorval | Car & Truck Transporting Companies |
| 24k Auto Inc | Dorval | Auto Body Shop |
| 7571470 Canada Inc. (Opus Pharma) | Montréal | Life Sciences and Health Technologies (LSHT) |
| A & D Prevost Inc | Richelieu | Aluminum Products |
| A P S Aviation Inc | Dorval | Aviation Consultants & Services |
| A+ Products Canada Inc | Montréal | Buckles |
| AB auto | Dorval | Auto Body Shop |
| Abbott Canada (Abbott Nutrition & Santé Animale) | Montréal | Life Sciences and Health Technologies (LSHT) |
| Abrasicorp & Equipment | Dorval | Abrasives |
Publicité (Desktop) Publicité (Mobile) |
| Abrasive Technology N A Inc | Dorval | Abrasives, Tout Entreprises et services |
| Acasti Pharma Inc. | Laval | Life Sciences and Health Technologies (LSHT) |
| Accès pharma chez Walmart | Dorval | Pharmacy |
| Acier Vanguard Ltée | Dorval | Tout Entreprises et services |
| Action 500 | Dorval | Tout Arts et divertissement |
| Actumus | Cherrier | Life Sciences and Health Technologies (LSHT) |
| Adiantum Production (anciennement Laboratoires Capsulab Inc.) | Dollard | Life Sciences and Health Technologies (LSHT) |
| ADVANTECH INC. | Dorval | Aerospace |
| 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 |
| Afmerica Technologie Inc | Châteauguay | Carbon Products |
| Agence Fitz | Montréal | Baby Products & Accessories |
| 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 |
Publicité (Desktop) Publicité (Mobile) |
| Airline Network Services | Dorval | 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 |
| Alarme Sentinelle | Dorval | Tout Entreprises et services |
| Alliages Unifiés | Dorval | Tout Entreprises et services |
| Allied Aluminum Products Compagny Inc | Montréal | Aluminum Products |
| Allied Universal Security Services | Dorval | Tout Entreprises et services |
| Alta Material Handling | Dorval | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Altamed Pharma | Montréal | Life Sciences and Health Technologies (LSHT) |
| Altrom/Auto-Camping - Dorval | Dorval | Auto Body Shop Equipment & Supplies |
| Alumicor Limited | Montréal | Aluminum, Aluminum Products, Architects |
| Aluminium C Bouchard & Fils Inc | Terrebonne | Aluminum Products |
| Aluminium DP | Longueuil | Aluminum Products |
| Aluminium Elron Inc | Dollard Des Ormeaux | Aluminum Products |
| Aluminium Fenebel 1964 Inc | Montréal | Aluminum, Aluminum Products |
| Aluminium Maurice Forest Inc | Montréal | Aluminum, Aluminum Products, Balconies |
| Aluminium Notre-Dame | Brossard | Aluminum Fabricators, Aluminum Products |
| Aluminium Pierre Enrg | Lemoyne | Aluminum Products |
