| Bidonlivre | Book Stores | facebook.com |
| Bidules-Mtl | Answering Machines & Equipment | facebook.com |
| Biembelious Hair Beauty | Beauty & Fitness, Hairdressers & Beauty Salons | — |
| Bien Chez Soi | Care Homes | — |
| Bien-Aimé Transport Inc | Car & Truck Transporting Companies | — |
| Bien-Être Nomade | Massage Therapy | bienetrenomade.ca |
| Biena | Life Sciences and Health Technologies (LSHT) | biena.com |
| Bienaime Lu | lu | — |
| Biennale Cinars | Tout Entreprises et services, Tout Événements spéciaux | cinars.org |
| Bienvenue Montréal Service aux Nouveaux Immigrants | Airports | facebook.com |
| Bier Markt | Bars, Brasseries | thebiermarkt.com |
| Bierbrier Brewing Inc | Brewers | — |
| Big Byte Inc | Car Repair | facebook.com |
| Biha Aide | Care Homes | bihaaide.wordpress.com |
| Bijouterie Diplomate Diamantaire | Clocks | bijouteriediplomate.com |
| Bijouterie Emma Inc | Clocks | bijouteriesduquebec.ca |
| Bijouterie Javo Inc | Clocks | bijouteriejavo.com |
| Bijoux et Fourrures SAINT-LAURENT | Weddings / Baptisms & Occasions | — |
| Bijoux Sigma Création | Tout Commerces au détail | sigmacreation.com |
| Bikecity | Bicycle Rental | facebook.com |
| Bil | Automobiles, Bus Stations & Ticket Agencies, car Dealers, Car Dealers | — |
| Bilbao Renovations | Bathroom Renovations | bilbaorenovations.ca |
| Billets.com | Tout Arts et divertissement | billets.com |
| Bills Plumbing & Heating | Plumbing | — |
| BILLY G STUDIO – Vassilis Galatis | Disc-Jockeys, Entertainment | studiobillyg.com |
| BILLY G STUDIO – Vassilis Galatis | Entertainment | — |
| BILLY-G. | Entertainment | studiobillyg.com |
| Bilodeau Ernest Dr | Chiropractors | facebook.com |
| Biltmore Domicile | Tout Commerces au détail | biltmoredomicile.co |
| Bily Kun | Tout Bars et restaurants | bilykun.com |
| BIM Competent | Civil Engineers | — |
| Biner Training | Fitness Gyms | facebook.com |
| Binette & Associés Ltée | Audiovisual Production Services | facebook.com |
| Bingo A Ma Baie | Bingo Halls | facebook.com |
| Bingo Hochelaga | Bingo Halls | bingohochelaga.ca |
| Bingo Masson | Bingo Halls | boutiquedanimauxchico.com |
| Bio 3 | Fitness Gyms | — |
| Bio Green Cleaning | Cleaning Services, Cleaning Service | — |
| Bio Lonreco Inc. | Life Sciences and Health Technologies (LSHT) | biolonreco.ca |
| Bio Spa Enaam | Tout Commerces au détail | biospaenaam.com |
| Bio Springer Amerique du Nord Inc | Agri-food | biospringer.com |
| Bio Terre | Tout Commerces au détail | bio-terre.com |
| Bio Énergie | Building Material Manufacturers & Wholesalers | — |
| Bio-K Plus International Inc. | Life Sciences and Health Technologies (LSHT) | biokplus.com |
| Bio-Rad Laboratories (Canada) Ltd. | Tout Entreprises et services | — |
| BioAmber Inc | Life Sciences and Health Technologies (LSHT) | bio-amber.com |
| Bioastra Technologies | Life Sciences and Health Technologies (LSHT) | bioastratech.com |
| BioAuxilium | Life Sciences and Health Technologies (LSHT) | bioauxilium.com |
| BioAuxilium Research | Life Sciences and Health Technologies (LSHT) | bioauxilium.com |
| Biocité | Landscaping | — |
