| 31-12 Comptabilite Inc | Accountants | — |
| 89 Etc | Car Detailing | 89etc.com |
| 90520552 Quebec Inc | Audiovisual Equipment & Supplies, Audiovisual Equipment & Supplies Rental | votreevenement.ca |
| 9265-6792 Québec Inc | Baked Goods Wholesalers | — |
| 9277-2110 Québec Inc | Automobiles, car Dealers | facebook.com |
| A Faire | Shopping Mall | facebook.com |
| A. Landry Peintre A. Landry, Rénovation | Flooring | — |
| ABE Climatisation Inc. | Air Purifiers | abeclimatisation.com |
| Abel Excavation Enr | Plumbing | facebook.com |
| Abou-Nasr Mona Dr | Automobiles, Dentists, Not Profit | facebook.com |
| Abriloc | Tout Commerces au détail | abriloc.com |
| Acadec Transport | Car & Truck Transporting Companies | — |
| Académie Milala | Health and Beauty | facebook.com |
| Académie Montessori de Grand Montreal | Childcare Services | academieblaisepascal.ca |
| Access Graphics Of Canada Att | Computer Graphics Design & Animation | — |
| Acceuil Francois Inc | Home Improvement | facebook.com |
| Accounting Services Montreal | Accounting Services | accountingservicesmontreal.ca |
| Accueil aux Immigrants de l'est de... | Tout Communautés et société, Tout Enseignement et savoir | aiemont.com |
| Accès pharma chez Walmart | Pharmacy | — |
| Acier Omega Ltée | Aluminum | facebook.com |
| ACRoyal | Tout Entreprises et services | airclimatisemontreal.com |
| Action Dignité De St-Léonard | Associations | facebook.com |
| Adalia Services Préventifs Ltée | Tout Commerces au détail | adalia.com |
| Adanac Inc | Garage Auto | adanac.net |
| ADT Security Services | Aircraft Parts, Engines & Avionics | homesecurity.adt.com |
| Agence De Recouvrement Global | Collection Agencies | facebook.com |
| Air Fusion | Air Conditioning Contractors | facebook.com |
| Air Spécialiste Inc | Air Conditioning Contractors | airspecialiste.com |
| Air Spécialiste Inc | Air Conditioning Contractors | — |
| Airbrushextreme | Artists | oakvillewd.com |
| Aleco | Building Contractors | aleco.ca |
| Alexandra's Babysitting Services | Babysitting Services | facebook.com |
| Aliment Congelés Alasko Inc. | Tout Entreprises et services | alasko.com |
| Aliment Select Int | Beverage Distributors & Bottlers | — |
| Aljamila Coiffure | Beauty & Fitness, Hairdressers & Beauty Salons | facebook.com |
| Allanté Limousines | Chauffeur Services | allantelimousineinc.ca |
| Allo Pipo Le Clown | Clowns | leclownpipo.com |
| Allstate Assurance: Jonathan Viau | Car Insurance | facebook.com |
| Alpha Toronto Series Inc | Accountants | facebook.com |
| Alumina | Aluminum | — |
| Amaro Magasin St-Léonard | Bulk & Bottled Water | amaro.ca |
| Ambiance Luminaire | Electricians | ambianceluminaire.com |
| AMCS | Cleaning Services, Cleaning Service | — |
| Ameublement Lida | Tout Commerces au détail | ameublementlida.ca |
| Ameublement Lida Furniture Inc | Beds | — |
| Amiens Salle de Réception | Auditoriums & Halls | buffetamiens.com |
| Amissa Clinic Massage Therapist | Massage Therapy | facebook.com |
| Améliorations Rénovation Ézèkiel | Painters | platrierezekiel.ca |
| Angelina Bianco Hairstylist | Beauty & Fitness, Hairdressers & Beauty Salons | facebook.com |
| Aniello Di Meglio CPA Inc | Accountants | facebook.com |
