| CENTREDMVET | Lachine | Tout Entreprises et services |
| Century Steel | Lachine | Aluminum |
| Century Steel Inc | Lachine | Aluminum |
| CenturyLink Technology Solutions | Montréal | Information Technologies (IT) |
| Certo Solutions | Saint-Léonard | Tout Informatique et internet |
| Chez Jano | Lachine | Children's Clothing Stores |
| Chic Esthétique | Lachine | Beauty & Fitness, Beauty Institutes |
| Chiropratique Lachine | Lachine | Chiropractors |
| Christina Design | Lachine | Home Improvement |
| Cimetière La Fabrique Des Saints Anges | Lachine | Cemeteries |
Publicité (Desktop) Publicité (Mobile) |
| Cintube Ltée | Lachine | Aluminum, Tout Entreprises et services |
| Cité Médicale Lachine | Lachine | Medical Clinics |
| Clariant Canada Inc Masterbatches Division | Lachine | Agricultural Chemicals |
| Classé Audio Inc. | Lachine | Information Technologies (IT), Tout Entreprises et services |
| Climatisation Solution Air | Nouveau-Rosemont Et Mercier | Tout Entreprises et services |
| Climatisation Solutionair | Montréal | Air Conditioning Contractors |
| Clinique Auditive De L'Ouest | Lachine | Audiologists |
| Clinique D'Urgence 32ème Avenue Inc | Lachine | Medical Clinics |
| Clinique de Réadaptation Universelle | Lachine | Physiotherapy |
| Clinique MFML | Lachine | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Clinique Physiothérapie Universelle Lachine | Lachine | Physiotherapy |
| Clinique Pédiatrie | Lachine | Medical Clinics |
| Clinique Solution Santé | Cantons De L'est | Tout Entreprises et services |
| Clinique Solution Santé (Dr Pascal PaquetDCChiropraticien) | Montréal | Chiropractors |
| Clinique SolutionKiné | Sherbrooke | Medical Clinics |
| Clinique Veterinaire Lachine Inc | Lachine | Animal Medications |
| Clinique Vétérinaire Sur Le Lac | Lachine | Animal Medications |
| CLSC De Dorval Lachine | Lachine | CLSC |
| Club de Golf Meadowbrook | Lachine | Tout Arts et divertissement |
| CMP Solutions Mécaniques Avancées | Chateauguay | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Coca Cola Bottling Company | Lachine | Agri-food |
| Coiffure Zoe Solution | Montréal | Beauty & Fitness, Hairdressers & Beauty Salons |
| Coin Solutions Affaires | Saint-Léonard | Bookkeeping Software & Accounting Systems |
| Collège Sainte-Anne de Lachine | Lachine | Tout Enseignement et savoir |
| Communications Fg Cellier | Lachine | fg |
| Complexe Canal Lachine | Saint-Henri | Tout Entreprises et services |
| Complexe du Canal Lachine | Saint-Henri | Tout Commerces au détail, Tout Entreprises et services |
| Compta Solutions | Montréal | Chartered Professional Accountants (CPA) |
| Comptabilite Solutions | Montréal | Bookkeeping Software & Accounting Systems |
| Comptabilité Solution | Montréal | Accounting Services |
Publicité (Desktop) Publicité (Mobile) |
| Corporate Aircraft Charters | Lachine | Aircraft & Private Jet Charter |
| Corporate Promotion Solutions | Montréal | Calendars |
| Corporation des Bijoutiers du Québec | Lachine | Tout Commerces au détail |
| Courrier Can-Us Liaison | Lachine | Cans |
| Couvreur Sipa 2002 Inc | Lachine | Roofing |
| Cowper Inc. | Lachine | Tout Entreprises et services |
| CPD Construction Products | Lachine | Tout Entreprises et services |
| Cpd Lachine | Lachine | Caisses Populaires |
| Crate & Barrel Warehouse | Lachine | Shopping Mall |
| Crazy Haircut | Lachine | Beauty & Fitness, Hairdressers & Beauty Salons |
