| Auto Bugatti Inc. | Tout Commerces au détail | autobugatti.ca |
| Auto Sai Inc | Tire Shop | — |
| AVIATION MBBH Inc. | Aerospace | aviationmbbh.com |
| Avis | Tout Commerces au détail | avis.ca |
| Aviva Solutions Inc. | Tout Informatique et internet | avivasolutions.com |
| Azad Fine Chemicals | Chemicals | azadchem.com |
| Aéroport International de Montréal-Trudeau YUL | Airports | admtl.com |
| Aéroports de Montréal | Airports | admtl.com |
| Aéroports de Montréal (ADM) | Tout Entreprises et services, Tout Tourisme et hôtels | admtl.com |
| Aéroports Internationaux de Montréal-Trudeau et Montréal-Mirabel | Airports | admtl.com |
| b At order | at | — |
| Babysitting & Cleaning services | Babysitting Services | m.facebook.com |
| Bain Depot | Bathroom Accessories | instagram.com |
| Baked2go | Tout Commerces au détail | baked2go.com |
| Barwood-Pilon | Tout Entreprises et services | barwoodpilon.com |
| Batesville Canada | Tout Entreprises et services | batesville.com |
| Batrik Medical Manufacturing Inc | Life Sciences and Health Technologies (LSHT) | surgmed.com |
| Beausejour Hotel Apartments | Apartment Hotels | — |
| Beautybyandreaxo | Beauty & Fitness, Hairdressers & Beauty Salons | — |
| Bergy Baseball & Golf | Baseball Clubs & Lessons | — |
| BHM Truck Trailer Repair Garage | Auto Repair Garages, Automobiles, Not Profit, Car Repair | — |
| Bibliothèque | Not Profit, library | — |
| Big Brothers Big Sisters of West Is... | Tout Communautés et société | westisland.bigbrothersbigsisters.ca |
| Bijouterie Jean-Guy Aubry | Tout Commerces au détail | facebook.com |
| Bio Lonreco | Life Sciences and Health Technologies (LSHT) | biolonreco.ca |
| Bionetix | Biomedical Products | bionetix.ca |
| Biron – Centre de santé – Aéroport de Montréal | Medical Clinics | biron.com |
| BJAC Aéronautique | Aircraft Parts, Engines & Avionics | facebook.com |
| BJAC Services | Aerospace | bjacservices.com |
| Black Limousine Montréal – Chauffeur privé & limousine de luxe | Chauffeur Services | blacklimousine.ca |
| Bombardier Aeorspace | Aircraft Design & Manufacturers | — |
| BOMBARDIER AEROSPACE Centre de finition Intérieure | Aerospace | bombardier.com |
| BOMBARDIER AEROSPACE Siège Social Aéro & usine 3 | Aerospace | bombardier.com |
| Bookkeeping Mtl | Accountants, Accounting Services | bookkeepingmontreal.com |
| Boutique De Mariage Punta Chiara Inc | Bridal Shops | — |
| Boutique iStore | Tout Informatique et internet | istore.co |
| Brimotion Automation And Controls Inc | Automation Systems & Equipment | brimotion.com |
| Bugsy Distribution Inc | Beverage Distributors & Bottlers | — |
| Cac Air | Airlines | — |
| Caladena Groupe Inc. | Tout Entreprises et services | caladena.com |
| Camion International West Island | Automobiles, car Dealers | lereseauperformant.com |
| Camp de jour Edphy International Edouard-Montpetit | Camps | — |
| Canadian Forces Saling Association | Boating & Sailing Courses | — |
| Cancino Technologies Corporation Lt... | Tout Entreprises et services | cancinotec.com |
| Cappino Physiotherapy And Wellness Cente | Physiotherapy | — |
| Cappino Physiotherapy And WellnessCenter | Physiotherapy | cappinophysio.ca |
| Cardio Plein Air West Island | Fitness Gyms | — |
| Carl Akoury Strength & Conditioning Coach | Fitness Gyms | — |
| Carrosserie FB | Auto Body Shop | carrosserie-fb.com |
| Carrosserie HK | Auto Body Shop Equipment & Supplies | hk247.net |
