| M A L'Allier | m | — |
| M Al Mostapha | zl | — |
| M Careau | m | — |
| M Cox | ox | — |
| M D Sanfacon | m | — |
| M Da-Silva-Cabral | da | — |
| M De Koninck | de | — |
| M Du | du | — |
| M et Y Desmarteau | et | — |
| M Ga | ga | — |
| M Girard | m | — |
| M La Roche | la | — |
| M M Dechesnes | m | — |
| M M Du Sablon | du | — |
| M M K Gaudreault | m | — |
| M Mc Comeau | xc | — |
| M Mc Nicoll | xc | — |
| M Nolet | m | — |
| M T Lacombe | t | — |
| M-H Lavoie | h | — |
| M-M Levesque | m | — |
| M-M Rossignol | m | — |
| Ma Al | zl | — |
| Ma Msh | ma | — |
| Mail Champlain | Shopping Malls | redflagdeals.com |
| Mail Champlain - Store Directory | Mall Store Directories | redflagdeals.com |
| Maluuba (Microsoft) | Information Technologies (IT) | maluuba.com |
| Manon Fortier- Courtier Immobilier | Real Estate Offices, Courtier immobilier | facebook.com |
| Manulift E.M.I. Ltée | Tout Entreprises et services | manulift.ca |
| Marc Bonenfant | Real Estate Offices, Courtier immobilier | marcbonenfant.com |
| Marc Lemay Courtier Immobilier Résidentiel | Real Estate Offices, Courtier immobilier | viacapitalevendu.com |
| Marc Turgeon & Samuel Labrecque - Engel & Völkers Québec | Real Estate Offices, Courtier immobilier | samuellabrecque.evrealestate.com |
| Marché de proximité de Québec | Tout Entreprises et services | marchequebec.org |
| Marianne De Bonville | qe | — |
| Marie-Claude Drapeau Courtier Immobilier | Real Estate Offices, Courtier immobilier | — |
| Marie-Claude Langis, Courtier Immobilier Sainte-Foy Sillery Cap-Rouge | Real Estate Offices, Courtier immobilier | — |
| Marie-Claude Truchon | Real Estate Offices, Courtier immobilier | — |
| Marie-Pier Gagnon - Courtier immobilier | Real Estate Offices, Courtier immobilier | viacapitalevendu.com |
| Marilyn Jr Dery | zr | — |
| Martin Comeau Remax | Real Estate Offices, Courtier immobilier | — |
| Masimo | Life Sciences and Health Technologies (LSHT) | masimo.com |
| Mathieu Fournier Courtier immobilier résidentiel | Real Estate Offices, Courtier immobilier | fournierimmobilier.com |
| Mathieu Gobeil Courtier Immobilier Inc | Real Estate Offices, Courtier immobilier | suttonquebec.com |
| Mathieu Roy - Mathieu Roy | Real Estate Offices, Courtier immobilier | — |
| Matthieu L'écuyer Real Estate | Real Estate Offices, Courtier immobilier | facebook.com |
| Maxim Lacombe - Courtier immobilier | Real Estate Offices, Courtier immobilier | — |
| Maxime Tremblay Immobilier | Real Estate Offices, Courtier immobilier | facebook.com |
| Maya | Life Sciences and Health Technologies (LSHT) | mayahtt.com |
| Mc Martineau | xc | — |
| MediSolution | Life Sciences and Health Technologies (LSHT) | medisolution.com |
