Inoutic / Deceuninck GmbH - PVC systems for windows and doors, wall and roof cladding, and for designing and landscaping terrace.

Schüco International KG - The market leader for innovative building cladding, windows, doors and facades.

Mesan Metal Aluminium A. Ş. - supplier of building profiles, automatic lighting, ventilation, profiles for solar energy systems

Dorma Group - manufacture and installation of automatic sliding doors, soundproof partitions, security and access control systems, glass facade systems and glass fittings.

Etem Bulgaria - leading aluminium extrusion company

ETEM - Greece - design and manufacture of architectural systems and aluminium profiles for industrial applications.

Alkomet AD - Shumen, Bulgaria - rolling and pressing of aluminium products.

ALUMIL - Greece - design, manufacture and sale of aluminium extrusion products

LIEBHERR - Germany - manufacturer of construction machinery and accessories

LIEBHERR - Bulgaria - production of high quality refrigerators and freezers

ALUKÖNIGSTAHL - distribution of aluminium, steel and plastic profile systems for doors, windows and facades

Thrace Voice Bulgaria - manufacture of glass and glassware

A.G.C. Flat Glass Bulgaria Ltd. - glass production

Pilkington - production and sale of glass

GEZE Gmbh - one of the leading companies for the development and production of building systems for doors, windows and safety technology.