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| Héloise Thibodeau Architecte | Montréal | Architects |
| Iancu Pruncut Architecte | Verdun | Architects |
| IBI Group | Montréal | Architects |
| Innotech - Execaire Aviation | Dorval | Tout Entreprises et services |
| Innovant | Longueuil | Architects |
| Inscape Le Studio | Montréal | Architects |
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| Jean Bluteau | Montréal | Architects |
| Jer Greene, Aia + Cphc | Verdun | Architects |
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| Jlp Architecture | Montréal | Architects |
| Jodoin Lamarre Pratte Architectes Inc | Montréal | Architects |
| Jodoin Lamarre Pratte Architectes Inc | Montréal | Architects |
| Julie Forbes Design | Longueuil | Architects |
| Julien Valade Architecte | Montréal | Architects |
| Jutras Architecture Inc | Brossard | Architects |
| Konik Studio | Montréal | Architects |
| L'Atelier Chaloub-Beaulieu Inc | Montréal | Architects |
| L'Oeuf Architects | Saint-Henri | Tout Entreprises et services |
| L. McComber Ltée | Montréal | Architects |
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| Lacombe J Acoustique Inc | Repentigny | Ceilings |
| Lafond Architecte | Saint-Léonard | Architects |
| Lambert Architecte Inc. | Montréal | Architects |
| Laser 2 D-3 D Inc | Anjou | Architects |
| Le Groupe Gelinas Architectes | Saint-Lambert | Architects |
| Lemay Michaud Architecture Design Inc | Montréal | Architects |
| Les Architectes Labonté | Montréal | Architects |
| Les Systèmes Intérieurs Michel Nadeau Inc | Laval | Ceilings |
| Lessard et Côté Architectes | Montréal | Architects |
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| Loaidieu | Montréal | Architects |
| Louis Houle Architecte | Longueuil | Architects |
| Luc Plante Architecture design | Saint-Lambert | Architects |
| Mab Architecture | Candiac | Architects |
| Mab3 | Montréal | Architects |
| Madame Design Architecture | Montréal | Architects |
| Maia Peauchamp | Montréal | Architects |
| Maison De L'Architecture De L'Urbanisc | Montréal | Architects |
| Marc Jobin Architecte | Laval | Architects |
| Marie Verreault | Montréal | Architects |
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| Martin Dufour Architecte | Montréal | Architects |
| McLean Architecture | Saint-Lambert | Architects |
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| Monument Architecture | Montréal | Architects |
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