| Loof Alain Architecte Paysagiste | Montréal | Landscaping |
| Louis Houle Architecte | Longueuil | Architects |
| Lps Architecture&Gestion Inc. | Montréal | Architectural Technologists |
| Luc Plante Architecture design | Saint-Lambert | Architects |
| Lumay Design | Montréal | Architectural Technologists |
| Lupien Matteau Architectes Associés | Montréal | Landscaping |
| Lyne Legault Architecte Paysagiste/Landscape Arc hi | Montréal | Landscaping |
| M C Design Conception Architecturale | Montréal | Architectural & Construction Specifications |
| M G Design | Kirkland | Architectural & Construction Specifications |
| Mab Architecture | Candiac | Architects |
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| Mab3 | Montréal | Architects |
| MAC Metal Architectural | Saint-Hubert | Tout Entreprises et services |
| Madame Design Architecture | Montréal | Architects |
| Maia Peauchamp | Montréal | Architects |
| Maison De L'Architecture De L'Urbanisc | Montréal | Architects |
| Manic Image | Montréal | Architectural & Construction Specifications |
| Marc Jobin Architecte | Laval | Architects |
| Marie Verreault | Montréal | Architects |
| Marilou Champagne Architecte Paysagiste | Saint-Calixte | Landscaping |
| Martin Dufour Architecte | Montréal | Architects |
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| Maryse Leduc Architecture et Design | Montréal | Tout Entreprises et services |
| Matthieu Schleiss Architecte | Montréal | Home Improvement |
| Maurice Martel Architecte | Montréal | Architectural Technologists |
| Maurice Martel Architecte | Montréal | Architectural Technologists |
| MAVI Architectural Steel Ltd | Montréal | Balconies |
| Mc Architecture Canada | Montréal | Architectural & Construction Specifications |
| McLean Architecture | Saint-Lambert | Architects |
| McNicoll Jean Eudes | Saint-Hubert | Architects |
| Menkes Shooner Dagenais Le Tourneux | Centre-Ville | Tout Entreprises et services |
| Menkes Shooner Dagenais Létourneux | Montréal | Architectural Technologists |
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| Messaging Architech | Montréal | Architects |
| Michael McLean Architecte | Saint-Lambert | Architects |
| Michael Orsini Design | Pointe-Claire | Architectural Technologists |
| Michael Orsini Design | Montréal | Architectural Drawing, Architectural Technologists |
| Michel Lemaire Architecte | Verdun | Architects |
| Michelle Lafontaine Designer | Laval | Architectural Technologists |
| Mickael Architecte Paysager | Montréal | Landscaping |
| Mihajlovits Ivan | Mont-Royal | Architectural Technologists |
| Miniaci J Architectural Designs | Saint-Léonard | Architectural Technologists |
| ML services résidentiels + | Montréal | Architects |
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| Mobalpa | Brossard | Architects |
| MODERNO | Montréal | Tout Entreprises et services |
| Monument Architecture | Montréal | Architects |
| Moranelli, S Architecte | Montréal | Architects |
| MU Architecture | Montréal | Tout Entreprises et services |
| Mylène Ho Design | Montréal | Architectural Technologists |
| NAAD architecture | Montréal | Architects |
| Nadeau Blondin Lortie Architectes Inc | La Prairie | Architects |
| Nadon Félix Technologue ARCH | Saint-Ours | Architectural & Construction Specifications |
| Nantel Michel | Laval | Architects |
