KINEX, Inc.Virginia, United States
JELD-WEN, Inc.Oregon, United States
Keylite Roof Windows Ltd.Derbyshire, United Kingdom
HEIM & HAUS Holding GmbH
The Metal Window Co. Ltd.Oxfordshire, United Kingdom
JOSKO Fenster & Türen GmbH
Reynaers Aluminium NVAntwerpen, Belgium
Inwido ABSkane Lan, Sweden
Tegola Canadese SpA
Internorm Kunststofftechnik GmbH
WERU GmbHBaden-Württemberg, Germany
NorDan AB