| Alcan Inc | Montréal | Aluminum, Aluminum Fabricators | — |
| Alcoa Canada | Montréal | Aluminum | alcoa.com |
| Alcoa Canada Cie | Montréal | Aluminum, Aluminum Fabricators | — |
| Alumicor Limited | Montréal | Aluminum, Aluminum Products, Architects | alumicor.com |
| Alumilex | Montréal | Aluminum | alumilex.com |
| Aluminium Austria Metall Quebec Inc | Montréal | Aluminum | — |
| Aluminium Distinction | Montréal | Aluminum, Aluminum Fabricators | — |
| Aluminium Fenebel 1964 Inc | Montréal | Aluminum, Aluminum Products | fenebel.com |
| Aluminium Maurice Forest Inc | Montréal | Aluminum, Aluminum Products, Balconies | aluminiumforest.com |
| Alumould & Tool Ltd | Montréal | Aluminum | — |
| Bourgouin Aluminium | Montréal | Aluminum | — |
| Caruso Aluminium | Montréal | Aluminum, Aluminum Products | carusoaluminium.com |
| D.R. Design Inc | Montréal | Aluminum | — |
| Dr Design Inc - Faztek | Montréal | Aluminum, Aluminum Products | facebook.com |
| DV Aluminium | Montréal | Aluminum, Aluminum Products | — |
| DV Aluminium | Montréal | Aluminum, Aluminum Products | dvaluminium.com |
| Elysis | Montréal | Aluminum | — |
| Fabrications Rampes & Escaliers d'AluminiumPrestige Inc | Montréal | Aluminum | — |
| Gabrielli Aluminium Inc | Montréal | Aluminum, Balconies | facebook.com |
| Gamma Industries Inc | Montréal | Aluminum | ced.travel |
| Gamma Industries Inc | Montréal | Aluminum | technologypartnerz.com |
| Gamma Murs Et Fenêtres International | Montréal | Aluminum | facebook.com |
| Groupe Kemplus Inc | Montréal | Aluminum | gkemplus.com |
| Hydro Aluminium Canada Inc | Montréal | Aluminum | — |
| Les Aciers Formatech Inc | Montréal | Aluminum | acierformatech.com |
| Les Produits Aluminium | Montréal | Aluminum, Aluminum Products | — |
| Les Produits D'Aluminium C B C Inc | Montréal | Aluminum | — |
| Les Produits d'aluminium Mondi | Montréal | Aluminum, Aluminum Products | — |
| Oam Aluminium | Montréal | Aluminum | — |
| Plimetal Inc | Montréal | Aluminum | — |
| Rapido Métal Inc | Montréal | Aluminum | rapidometal.com |
| Rio Tinto Alcan | Montréal | Aluminum, Aluminum Products | riotintoalcan.com |
| Robert Mitchell Inc | Montréal | Aluminum, Tout Entreprises et services | robertmitchell.com |
| Rénovation Pro Métal Enr | Montréal | Aluminum | pro-metal.ca |
| Samuel Fils | Montréal | Aluminum | samuel.com |
| Soudure Absolue Inc | Montréal | Aluminum | soudureabsolue.com |
| Ste-Rose Industries | Montréal | Aluminum | steroseindustries.com |
| Trans Canada Aluminium | Montréal | Aluminum | — |
| Trans Canada Aluminum | Montréal | Aluminum | — |
| United Welding Processes | Montréal | Aluminum | uwp.ca |
| Wirth-Brand Inc | Montréal | Aluminum | wirthbrand.com |
