Donges SteelTec, the traditional steel construction company with headquarters in Darmstadt, is one of the leading steel bridge and steel building construction companies in Germany. The company currently employs 180 people and offers all services for steel construction projects – from project planning, static calculation and design to production and assembly – from a single source.
Donges SteelTec has a capacity of up to 20,000 tons per year at its Darmstadt site, with its own production facilities and technical office.
Kalzip is a leading international manufacturer of aluminium roof and façade systems based in Koblenz. The Kalzip Group employs approximately 170 people worldwide and has locations in Great Britain, France, Spain, Dubai and India.
The company produces on modern roll forming lines and thus can offer high-quality, customer-specific roof systems for stadiums, sports halls, traffic structures, industrial buildings, commercial buildings and residential areas.
Normek is one of the leading companies for steel structural engineering, steel bridges and facade solutions in Northern Europe. The company employs approximately 200 people and has four production sites in Finland and a project management- and sales office in Sweden.
Normek specializes in the design, engineering and construction of steel frame structures and steel bridges as well as the manufacturing of customized glass façade solutions.
FDT is an established supplier of flat roofing systems on the European market. The company employs approximately 230 people at the production sites in Mannheim and Hemsbach, at the sales sites in France and Belgium and at a further 30 locations worldwide.
With several product lines, including roofing membranes, lighting systems and acid protection, FDT defines a complete package for the ideal flat roof solution and waterproofing together with builders, architects, planners and fabricators.