Groupo Vitro – Vitro America Parent Company
Vitro America

Architects
American Institute of Architects
Great Buildings Online – Master Architects List
Architects Online
USGBC

Contractors
ConstructionNet
Building.com - construction industry web directories
Contractors.com

Glass Fabricators
Alpen – Heat Mirror Insulating Glass
Standard Bent Glass Corp.
Viracon
Oldcastle

Finishers
Linetec

Extruded Aluminum Suppliers
Alcoa
Caradon Indalex