| Medelco Inc | Lachine | Physiotherapy |
| Metafix | Lachine | Tout Entreprises et services |
| Meubles Domon | Lachine | Tout Commerces au détail |
| Meubles Domon Ltée | Lachine | Furniture Stores |
| Meubles Domon Ltée | Lachine | Furniture Stores |
| MeubléA | Lachine | Amusement Places, Tout Commerces au détail |
| Mid-Day Squares | Lachine | Tout Commerces au détail, Tout Entreprises et services |
| MILLION TAPIS & TUILES Ceramiques | Lachine | Construction / Renovation |
| Moinifeh Mistapha | Lachine | Car Detailing |
| Montreal Limousine Select | Lachine | Tout Entreprises et services |
Publicité (Desktop) Publicité (Mobile) |
| Morin Assurances | Lachine | Car Insurance |
| Mr Darren Harney Savonnette Inc | Lachine | Commercial Kitchen Equipment |
| Mr. Tanguay & Fils | Lachine | Chemical & Pressure Cleaning Systems |
| MultiRecycle Inc. | Lachine | Tout Entreprises et services |
| Musée de Lachine | Lachine | Tout Arts et divertissement |
| Métaux Solutions | Lachine | Tout Entreprises et services |
| Métaux Solutions Inc | Lachine | Aluminum |
| Nellson Nutraceutique Canada Inc. | Lachine | Agri-food |
| NettoyageMTL | Lachine | Cleaning Services, Cleaning Service |
| Ninon Amesse Coiffure | Lachine | Beauty & Fitness, Hairdressers & Beauty Salons |
Publicité (Desktop) Publicité (Mobile) |
| Niska | Lachine | Art Galleries, Dealers & Consultants |
| NSK Canada Inc. | Lachine | Tout Entreprises et services |
| Nuance Bourdon Audiovisuel Inc. | Lachine | Tout Entreprises et services |
| Nutrisanté | Lachine | Tout Commerces au détail |
| Oakite Produits Can Ltee | Lachine | Chemicals |
| Ol Fr | Lachine | ol |
| Omron Canada Inc | Lachine | Automation Systems & Equipment |
| One Way Novelties | Lachine | Balloons |
| OneStop Parking | Montréal | Airport Parking |
| ouistitine | Lachine | Tout Commerces au détail |
Publicité (Desktop) Publicité (Mobile) |
| Pador Associations Management Group Ltée | Lachine | Association Management |
| Panache Markcomm | Lachine | Communications & Public Relations Consultants |
| Panasonic Canada Inc. | Lachine | Tout Entreprises et services |
| Papier Durabox Inc | Lachine | Cardboard |
| Paradoxe Déconstruction | Lachine | Tout Entreprises et services |
| Pareco Plus Inc | Lachine | Roofing |
| Park'n Fly | Dorval | Airport Parking |
| PASTA ANDREA | Lachine | Pizza & Pizzerias |
| PATTONAIR | Lachine | Aerospace |
| Paysagiste Bjr Landscaping | Lachine | Landscaping |
Publicité (Desktop) Publicité (Mobile) |
| Paysagiste Duwood Landscaping | Lachine | Landscaping |
| Paysagiste Lewis Landscaping Inc. | Lachine | Landscaping |
| PDQ 8 - SPVM (Lachine, Saint-Pierre - Poste de quartier 8 - Service de Police de la Ville de Montréal - SPVM) | Lachine | Emergency |
| Peintures Et Services PCT Inc | Lachine | Painters |
| Pelco | Lachine | Tout Entreprises et services |
| Perron D | Lachine | Balconies |
| Pharmacie Kira Azar inc. | Lachine | Pharmacy |
| Pierre Training | Lachine | Fitness Gyms |
| Pierre-Raymond Goyer | Lachine | Chartered Administrators |
| Pizza Hut | Lachine | Pizza & Pizzerias |
