| Les Technologies Polycontrôles Inc. | Tout Entreprises et services | polycontrols.com |
| Les Trois Mousquetaires | Brasseries, Brewers | lestroismousquetaires.ca |
| Les Vannes Famco Inc. | Tout Entreprises et services | famco.ca |
| Levie Performance Horses | Animal Breeders | — |
| Lexmark Canada Inc | Information Technologies (IT) | lexmark.ca |
| Lexus Gabriel Brossard | Car Leasing | lexusgabrielbrossard.com |
| Librairie Espanola | Book Stores | — |
| Librairie Moderne | Tout Commerces au détail | librairiemoderne.com |
| Ligne Et Détente Maison Santé Beauté | Massage Therapy | facebook.com |
| Lindt Chocolate Shop | Candy & Confectionery Stores, Chocolate | lindt.ca |
| Lindt Chocolates | Chocolate | — |
| Literie la libellule Inc | Bedding & Linens | literielalibellule.com |
| Location D'Outils Brossard | Compressors | equipementsbrossard.com |
| Logiciel Ogasys Inc | Business Centres | facebook.com |
| LOISIRS-CULTURE ET VIE COMMUNAUTAIRE | Not Profit, library, Library | — |
| Lord Construction ltd | Chemical & Pressure Cleaning Systems | facebook.com |
| Lugital | Tout Informatique et internet | notio.ca |
| Luminaires Gravel | Beds | facebook.com |
| Lusimat Inc. | Tout Entreprises et services | — |
| Luxme International Ltd. | Tout Entreprises et services | luxme.com |
| Luxobio Nhp | Health and Beauty | facebook.com |
| Lv Medical Spa - Facial, Médico Esthétique Bross ard | Health and Beauty | — |
| Lyon Styles | Men's Hairdressers & Barber Shops | facebook.com |
| M/2: Generation Y | Children's Clothing Stores | — |
| Madeleyne St-Laurent | Alternative Health | — |
| Maestrem Ninja Gym | Fitness Gyms | — |
| Magasin Eau Café | Coffee Wholesalers | eaucafe.ca |
| Magasin Vidéotron | Boutiques, Cable TV Providers | magasins.videotron.com |
| Magnolia Artiste Inc. | Baskets | magnoliafleuriste.com |
| Mail Champlain | Tout Commerces au détail | mailchamplain.ca |
| Mail Champlain | Shopping Malls, Shopping Mall | — |
| Maison Bon Entente | Associations | facebook.com |
| Maison Corbeil | Tout Commerces au détail, Furniture Stores | maisoncorbeil.com |
| Maison Corbeil | Furniture Stores | — |
| Maison Local | Clothing Manufacturers & Wholesalers | — |
| Maison Privee | Chemical & Pressure Cleaning Systems | — |
| Maison Privée | Men's Hairdressers & Barber Shops | facebook.com |
| Maison Privée | Men's Hairdressers & Barber Shops | — |
| Male&Girl4You | Adult Entertainment | — |
| Manheim Canada | Auctions | manheimcanada.com |
| Manon Leclerc Avocate | Business Lawyers | manonleclercavocate.com |
| Mantra Pharma | Pharmacy | mantrapharma.ca |
| Marc Lemay Huissier Rive Sud | Bailiffs | — |
| Marcel Doucet & Fils Ebénisterie Inc | Cabinet Makers | ebenisteriemarceldoucetetfils.com |
| Marché ADONIS – Rive-Sud | Food / Distributors, Supermarkets | groupeadonis.ca |
| Marco Entretien | Cleaning Services, Cleaning Service | marcoentretien.com |
| Marie Josee Breton Pharmacienn | Pharmacy | proxim.ca |
| Marie Morin | Agri-food | marie-morin.ca |
| Marie Morin Canada | Beverage Distributors & Bottlers | — |
| Marily | Bridal Shops | marily.net |
