| Bicyclettes Rossi | Clothing Manufacturers & Wholesalers | facebook.com |
| Bio S & T Inc. | Life Sciences and Health Technologies (LSHT), Tout Entreprises et services | biost.com |
| BIXI Montreal | Tout Entreprises et services | bixi.com |
| Bon bain | Bathroom Renovations | bonbain.ca |
| Borenstein Plumbing & Heating Inc | Plumbing | borensteinplumbing.ca |
| Boulangerie N D G | Bakeries | — |
| Boulart Inc | Baked Goods Wholesalers | boulart.com |
| Boutique Emerance Inc | Boutiques | facebook.com |
| Boy Boy Ky | ky | — |
| Brasserie Alvio | Brasseries | — |
| Bray Contrôles Canada Ltée | Tout Entreprises et services | bray.com |
| Bray-Dor Inc. | Tout Entreprises et services | braydor.com |
| Break Oval Medi Spa & Skin Center | Health and Beauty | — |
| Breakoval Esthetic Spa | Health and Beauty | breakoval.com |
| Brenntag | Tout Entreprises et services | brenntag.com |
| Brenntag Canada Inc | Chemical Storage & Handling | brenntag.ca |
| Brisson & Sedgwick | Tout Entreprises et services | brissontr.com |
| Bruni Glass Packaging Inc | Bottle Caps & Seals | bruniglass.com |
| C B A Auto | Auto Body Shop | autocba.com |
| C Centre De Collision Lachine Am Inc | Auto Body Shop | — |
| C R Slitters Ltd | Aluminum | refendoirscr.com |
| C.F.H. Sécurité Inc. | Tout Entreprises et services | cfhsecurite.com |
| Café Gato Design | Cafes Terraces | gadesign0.wix.com |
| Cal's Mobile Car Wash | Car Detailing | calscarwash.com |
| Canaropa | Tout Entreprises et services | canaropa.com |
| Canvas Montréal - Reception Loft | Auditoriums & Halls, Banquet Rooms | — |
| Canvyl Products | Canvas Goods | canvyl.com |
| Carrefour jeunesse-emploi Lachine (... | Tout Communautés et société, Tout Entreprises et services | cjelachine.ca |
| Carrosserie D'Auto Victoria-Lachine Ltée | Auto Body Shop | — |
| Cartier Chemicals | Chemicals | cartierchem.com |
| CDEC LaSalle-Lachine | Tout Communautés et société, Tout Entreprises et services, Tout Informations générales | cdec-lasallelachine.ca |
| Cendirect | Tout Informatique et internet | cendirect.com |
| Central Bernard Butcher Shop | Butcher Shops | centralbernard.com |
| Central Microsystèmes | Tout Informatique et internet | central.ca |
| Centre de couture Notre Dame Sewing... | Tout Commerces au détail | centredecouture.50megs.com |
| Centre De L'Auto Vincent Carrosserie | Garage Auto | — |
| Centre de Réadaptation Lisette-Dupras | Physiotherapy | — |
| Centre De Sante Et De Services Sociaux Dedorval-Lachine-Lasalle (Csss) Clsc De Lasalle | CLSC | — |
| Centre Du Bricoleur Lachine | Clothes Lines | — |
| Centre historique des Soeurs de Sai... | Tout Arts et divertissement, Tout Communautés et société | ssacong.org |
| Centre Hospitalier Bussey | Blue Pages, Hospitals | — |
| Centre Hospitalier de Lachine | Blue Pages, Hospitals | — |
| Centre Médical Lachine-Urgimed | Medical Clinics | — |
| Centre Nautique Inc | Boat Dealers & Brokers, Boat Repair & Maintenance | centrenautiquelachine.com |
| CENTREDMVET | Tout Entreprises et services | centredmvet.com |
| Century Steel | Aluminum | aciercentury.com |
| Century Steel Inc | Aluminum | aciercentury.com |
| Chez Jano | Children's Clothing Stores | facebook.com |
| Chic Esthétique | Beauty & Fitness, Beauty Institutes | chicesthetique.com |
| Chiropratique Lachine | Chiropractors | — |
