| Bibliothèque | Dorval | Not Profit, library |
| Bienvenue A L'Encre | Longueuil | Computer Accessories & Supplies |
| Big Brothers Big Sisters of West Is... | Dorval | Tout Communautés et société |
| Bijouterie Jean-Guy Aubry | Dorval | Tout Commerces au détail |
| Bio Lonreco | Dorval | Life Sciences and Health Technologies (LSHT) |
| Bionetix | Dorval | Biomedical Products |
| biQube Inc | Montréal | Computer Manufacturers & Wholesalers |
| Biron – Centre de santé – Aéroport de Montréal | Dorval | Medical Clinics |
| BIS Innovations | Montréal | Computer Consultants |
| Bits 'N' Bytes (Laser Toners & Inkjet ) | Montréal | Computer Accessories & Supplies |
Publicité (Desktop) Publicité (Mobile) |
| Biztree Inc. | Brossard | Tout Entreprises et services, Tout Informatique et internet |
| Bizware Software Solutions | Montréal | Information Technologies (IT) |
| BJAC Aéronautique | Dorval | Aircraft Parts, Engines & Avionics |
| BJAC Services | Dorval | Aerospace |
| Bl Solutions Montreal | Montréal | Cleaning Services, Cleaning Service |
| Black Limousine Montréal – Chauffeur privé & limousine de luxe | Dorval | Chauffeur Services |
| Black Mist Group | Brossard | Communications & Public Relations Consultants |
| Bmf roofing solutions us | Montréal | Roofing |
| BNB Informatique | Montréal | Computer Networking |
| Bolidea | Montréal | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Bombardier Aeorspace | Dorval | Aircraft Design & Manufacturers |
| BOMBARDIER AEROSPACE Centre de finition Intérieure | Dorval | Aerospace |
| BOMBARDIER AEROSPACE Siège Social Aéro & usine 3 | Dorval | Aerospace |
| Bookkeeping Mtl | Dorval | Accountants, Accounting Services |
| Boralex inc. | Centre-Du-Québec | Tout Entreprises et services |
| Botanical Art By Gio | Outremont | Art Galleries, Dealers & Consultants |
| Boulva Communication | Montréal | Communications & Public Relations Consultants |
| Boutik Arts Dans Le Coin | Montréal | Art Galleries, Dealers & Consultants |
| Boutique ABC | Centre-Ville | Tout Informatique et internet |
| Boutique De Mariage Punta Chiara Inc | Dorval | Bridal Shops |
Publicité (Desktop) Publicité (Mobile) |
| Boutique iStore | Dorval | Tout Informatique et internet |
| Bracher Automation | Milton-Parc | Tout Informatique et internet |
| Brainhunter | Centre-Ville | Tout Informatique et internet |
| Brakasoft | Montréal | Computer Networking |
| Brimotion Automation And Controls Inc | Dorval | Automation Systems & Equipment |
| Brookfield Solutions Globales Intégrées Canada S.E.C | Montréal | Building Exterior Cleaning |
| Bugsy Distribution Inc | Dorval | Beverage Distributors & Bottlers |
| Bullinformatique | Montréal | Computer Repair & Cleaning |
| C 3 I Inc | Pierrefonds | Computer Repair & Cleaning |
| C3 Solutions | Pointe-Saint-Charles | Tout Informatique et internet |
Publicité (Desktop) Publicité (Mobile) |
| Cablage Sc | Montréal | Computer Cabling, Installation & Service |
| Cac Air | Dorval | Airlines |
| Caladena Groupe Inc. | Dorval | Tout Entreprises et services |
| Calypso Communication | Saint-Bruno | Tout Informatique et internet |
| CAM SOLUTIONS | Saint-Léonard | Aerospace |
| Camion International West Island | Dorval | Automobiles, car Dealers |
| Camp de jour Edphy International Edouard-Montpetit | Dorval | Camps |
| Canada Computers | Greenfield Park | Answering Machines & Equipment |
| Canadian Forces Saling Association | Dorval | Boating & Sailing Courses |
| Canadiance Technologies | Montréal | Computer Repair & Cleaning |
