| 1700 LA POSTE | Petite-Bourgogne Et Griffintown | Tout Arts et divertissement |
| 1Pakt | Montréal | Arts & Cultural Organizations & Centres |
| 4Degrees Montreal | Montréal | Information Technologies (IT) |
| 9132-1000 Québec Inc | Lachine | Business & Trade Organizations |
| A At Jean | Montréal | at |
| A S T Inc | Montréal | Business & Trade Organizations |
| A+Quick Socal Media Business | Montréal | Advertising Agencies |
| Abbaye Val Notre-Dame | Saint-Jean-De-Matha | Tout Commerces au détail, Tout Communautés et société |
| ACSYNAM | Montréal | Life Sciences and Health Technologies (LSHT) |
| Act From Your Art | Montréal | Arts & Cultural Organizations & Centres |
Publicité (Desktop) Publicité (Mobile) |
| Action Graphix Longueil | Longueuil | Business Centres |
| Action Integration Brossard | Brossard | Arts & Cultural Organizations & Centres |
| Active Business & Realty Inc | Mont-Royal | Business Brokers |
| Ada X | Montréal | Tout Arts et divertissement, Tout Informatique et internet |
| Adelson Et Associés | Montréal | Business Insurance |
| Advanced Business Analytics Inc. | Montréal | Physiotherapy |
| Aerotek | Montréal | Business Centres |
| Affutage-Aiguisage Saint-Jean | Saint-Jean-Sur-Richelieu | Electricians |
| Agathe Jeanniot Ostéopathe | Montréal | Alternative Health |
| Agence Imapro Inc | Lachine | Business & Trade Organizations |
Publicité (Desktop) Publicité (Mobile) |
| Agence TOPO | Montréal | Tout Arts et divertissement |
| Agences Roger Boutin Inc | Boucherville | Business Brokers |
| Aircam.ca | Saint Jean | Tout Entreprises et services |
| Alain Lessard | Montréal | Business Lawyers |
| Albert Seliger | Montréal | Business Insurance |
| ALCiE Integrated Business Solutions | Montréal | Tout Informatique et internet |
| Alexandre Germain | Longueuil | Business Lawyers |
| Ali Jeans | Montréal | Boutiques |
| Alimentation O’Crock | Saint-Jean-De-Matha | Tout Commerces au détail |
| Aliments Ange-Gardien | Saint-Jean-Sur-Richelieu | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Aliments McCain | Montréal | Agri-food |
| Allali Brault | Montréal | Business Lawyers |
| Alliance Web-Commerce | Montréal | Business & Trade Organizations |
| AlloFirm | Montréal | Business Brokers |
| Alsago Entrepreneurs | Montréal | Startup Ecosystem |
| Altair Engineering Canada | Montréal | Information Technologies (IT) |
| Ameublements Du Vieux St-Jean | Brossard | Tout Commerces au détail |
| Amicom Inc | Longueuil | Business Centres |
| AMP Réfrigération | Saint-Jean | Air Conditioning Contractors |
| Angany | Montréal | Life Sciences and Health Technologies (LSHT) |
Publicité (Desktop) Publicité (Mobile) |
| Angkorienne du Canada | Montréal | Arts & Cultural Organizations & Centres |
| Animal Expert St-Luc | Saint-Jean-Sur-Richelieu | Aquariums & Supplies |
| Anne Jean-Michel Inc | Montréal | Bridal Shops |
| Anne Jean-Michel Inc | Montréal | Bridal Shops |
| Antiquites Jean-Claude Enr | Montréal | Antique Dealers |
| Antiquités Jean-Claude | Roxboro | Antique Dealers |
| Apotex | Montréal | Life Sciences and Health Technologies (LSHT) |
| Appareil Electro-Ménager Jean-Guy Rochette Réparation | Montréal | Appliance Repair & Service |
| Aptilon | Montréal | Business & Trade Organizations |
| Aquatech BM | Boucherville | Business & Trade Organizations |
