Yorglas - Turkish company Yorglas produces decorative glasses of the highest quality.

Roto - Joint Stock Company "Roto Frank" is a brand which operated in the European market in the field of production of door and window fittings.

Kurtoglu - The company producing the best quality aluminum raw materials made according to the German standards.

Rehau - The German company Rehau is a leading supplier of polymer systems in Europe. The company manufactures profiles for doors and windows, water and underfloor heating pipes, materials for furniture production.