| Action Sport Physio Laval-Duvernay | Physiotherapy | — |
| ACURA LAVAL | Automobiles | — |
| Adora Make-Up Artist | Artists | pureorganicdesign.com |
| AES Chemunex Canada | Life Sciences and Health Technologies (LSHT) | — |
| Afro Coiffure | Black Hair Salons | — |
| AGELOPOULOS, VASSILIS | Blue Pages | — |
| AGIOS NIKOLAOS, Seniors Association of Laval | Blue Pages | — |
| AGIOS PAVLOS, Corinthian Association | Blue Pages | — |
| Agneaux de Laval | Christmas Trees | serresbeaulieu.com |
| AGOO | Medical Clinics | facebook.com |
| Agop Harboyian Auto Body | Auto Body Shop | — |
| Agotech | Car Alarm Systems | agotech.ca |
| Aikido Québec - Dojo Mushin | Tout Enseignement et savoir | aikidoquebec.com |
| Air du confort (2000) Inc | Air Conditioning Contractors | — |
| Air Executive Limousine | Chauffeur Services | facebook.com |
| Air Flex 9139-7505 Québec | Air Conditioning Contractors | — |
| Air Pura Industries Inc | Air Purifiers | airpura.com |
| Air Saphir - Qualité d'air | Analytical & Testing Laboratories | airsaphir.com |
| Airconfort Dépôt | Air Purifiers | airconfortdepot.com |
| Airex Industries | Life Sciences and Health Technologies (LSHT), Tout Entreprises et services, Air Conditioning Contractors | airex-industries.com |
| Airex Énergie | Life Sciences and Health Technologies (LSHT) | airex-energy.com |
| AJ Tech Café | Coffee Break Services & Supplies | wushutkd.com |
| AJK Lawn | Landscaping | ajklawn.com |
| Ajna Santé | Fitness Gyms | — |
| Ajustements Magnétiques XE | Astrologers & Psychics | — |
| Alain-Grandbois Bibliotheques | Not Profit, library | facebook.com |
| ALARMEDEMARREUR | Alternators & Starters | demarreur-a-distance.ca |
| AlbCad Design | Architectural & Construction Specifications | albcad.com |
| Alevras Andreas CPA | Accountants, Accounting Services, Professionals | — |
| Alger Aluminium (1989) Enr | Aluminum | facebook.com |
| Algo Design | Information Technologies (IT) | algodesign.com |
| Algo Design Inc. | Tout Informatique et internet | algodesign.com |
| Algon Isolation (2000) inc | Cold & Heat Insulation Contractors | — |
| Algorithme Pharma | Pharmacy | — |
| Algorithme Pharma Inc. - Une Compagnie d'Altasciences | Life Sciences and Health Technologies (LSHT) | algopharm.com |
| ALGT CPA SENCRL | Accountants | algt.ca |
| Alguire Normand Dr | Chiropractors | facebook.com |
| Ali Baba Auto | Automobiles, car Dealers | facebook.com |
| Ali Salim | Architects | — |
| Aliments Dole Canada | Agri-food | dole.com |
| Aliments Le Chatel | Agri-food | lechatel.ca |
| Aliments Lesters Ltée (Les) | Agri-food | lesters.ca |
| Aliments Maple Leaf Inc. (Les) | Agri-food | mapleleaf.com |
| ALIMENTS SALAMINA | Food / Distributors, Food Wholesalers & Suppliers | — |
| Aliments Salamina (Les) | Agri-food | salamina.ca |
| Aliments Santa Maria | Agri-food | fr.ch.santamariaworld.com |
| Allied Technical Sales Inc | Architectural & Construction Specifications | ats-sales.ca |
| Alpha Intercom | Tout Entreprises et services | alphaintercom.com |
| Alphatech Electrique Inc | Electricians | alphatechelectriqueinc.ca |
| AltaSciences Inc | Analytical & Testing Laboratories | algopharm.com |
