| 10|20 Marketing | Dorval | Button Advertising |
| 1982 Transportation | Dorval | Car & Truck Transporting Companies |
| 24k Auto Inc | Dorval | Auto Body Shop |
| 2MORO | Montr茅al | Aerospace |
| A P S Aviation Inc | Dorval | Aviation Consultants & Services |
| A.E. PETSCHE CANADA, INC. | Kirkland | Aerospace |
| AAA Canada | Montr茅al | Aerospace, Aircraft Maintenance, Service & Storage |
| AB auto | Dorval | Auto Body Shop |
| ABIPA CANADA INC. | Laval | Aerospace |
| Abrasicorp & Equipment | Dorval | Abrasives |
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| Abrasive Technology N A Inc | Dorval | Abrasives, Tout Entreprises et services |
| Acc猫s pharma chez Walmart | Dorval | Pharmacy |
| Acier Vanguard Lt茅e | Dorval | Tout Entreprises et services |
| Action 500 | Dorval | Tout Arts et divertissement |
| AD OPT | Montr茅al | Aerospace |
| ADACEL INC. | Brossard | Aerospace |
| ADVANTECH INC. | Dorval | Aerospace |
| AERONAV NAVIGATION INTERNATIONAL | Pointe-Claire | Aerospace |
| Aeroneuf Instruments Lt茅e | Dorval | Aerospace, Aircraft Parts, Engines & Avionics |
| AEROPORT DORVAL/MIRABEL | Dorval | Blue Pages |
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| Aerospace Concepts of Canada Inc | Montr茅al | Aviation Consultants & Services |
| Aerospace Development Corp | Montr茅al | Aircraft & Private Jet Charter |
| Aerospace Group | Montr茅al | Aircraft Dealers |
| AEROSPACE WELDING | Blainville | Aerospace |
| Aerospace Welding Inc | Blainville | Tout Entreprises et services, Aviation Consultants & Services |
| Aerospatiale Kaycee | Dorval | Aircraft Parts, Engines & Avionics |
| AEROSPHERE | Pointe-Claire | Aerospace |
| Aerosystems International Inc. | Montr茅al | Aerospace, Tout Entreprises et services |
| Affacturage Canada Inc. | Dorval | Tout Entreprises et services |
| Air Algerie | Dorval | Airline Ticket Agencies |
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| Air Data Inc | Mont-Royal | Aerospace, Aircraft Parts, Engines & Avionics, Tout Entreprises et services |
| Air Inuit (1985) Ltd | Dorval | Airlines |
| Air Inuit Ltd | Dorval | Airlines |
| Air Inuit Ltd | Dorval | Airlines |
| Air Inuit Lt茅e | Dorval | Airlines |
| AIR RESEARCH TECHNOLOGY INC. | Montr茅al | Aerospace |
| AIRCRAFT EQUIPMENT & SUPPORT SERVICES | Dorval | Aerospace |
| Airline Network Services | Dorval | Airlines |
| Airline Services International Inc | Dorval | Airlines |
| AIRNAV ELECTRONIC | Dorval | Aerospace |
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| Airnav 脡lectronique Lt茅e | Dorval | Tout Entreprises et services |
| Airtrades Transitaires | Dorval | Tout Entreprises et services |
| Alarme Sentinelle | Dorval | Tout Entreprises et services |
| Align Aerospace | Boucherville | Aviation Consultants & Services |
| Alliages Unifi茅s | Dorval | Tout Entreprises et services |
| Allied Universal Security Services | Dorval | Tout Entreprises et services |
| Almaho Inc | L茅vis | Anodizing |
| Alphacasting Inc. | Montr茅al | Aerospace, Tout Entreprises et services |
| ALSIM | Montr茅al | Aerospace |
| Alta Material Handling | Dorval | Tout Entreprises et services |
