Donges Group: Four strong brands
Leader in steel constructions and building envelopes
The Donges Group is the leading supplier of steel bridges and steel constructions as well as roof and façade systems in Europe. The company combines the strong brands Donges SteelTec GmbH, FDT Flachdach Technologie GmbH, Kalzip GmbH and SCW – Smart Curtain Wall S.A.
The product portfolio of the Donges Group includes steel bridges for road, rail and pavement construction, steel building construction, industrial steel construction and steel frame structures as well as roof and façade solutions made of aluminium, also innovative glass façades for unusual building shapes and an extensive range for flat roof design. The group is internationally positioned and has numerous manufacturing facilities and sales offices in over 30 countries. The Donges Group offers a comprehensive range of products in the field of steel construction and building envelopes for planners and architects, fabricators, property developers and the public sector.
The companies of the Donges Group benefit from an international network and offer extensive know-how and product solutions from a single source. For architects, fabricators and builders, this results in synergy effects that greatly optimise the cost-benefit ratio of a building project. The companies can point to international references that impressively document their many years of expertise.
If you would like to know more about the Donges Group or its members then visit our website donges-group.com.
Dr. Wolf Cornelius
CEO
Donges SteelTec GmbH, Darmstadt
2022 – today CEO Donges SteelTec GmbH
Mutares SE & Co. KGaA, Munich
2008 – today multiple functions
SIG HAMBA GmbH
2000 – 2007 Technical Manager
Other Activities
Dr.-Ing. Dasu Liu
Manager Building Construction Division
Donges SteelTec GmbH, Darmstadt
Studies and doctorate
2011 – 2016 Doctorate in Steel Construction, TU Darmstadt
2003 – 2008 Studies of Civil Engineering, TU Darmstadt
Dipl.-Ing. degree, specialization in steel construction, solid construction, statics
Stephan Langer (Dipl.-Ing.)
Head of Bridge Construction Division
Donges Stahlbau GmbH, Darmstadt
Donges Stahlbau GmbH, Darmstadt
Deputy Head of Bridge Construction
Stahlbau Lavis, Offenbach
Project Engineer Bridge Engineering, since 1999 Division Head of Sales Bridge Construction
Studies in Civil Engineering
Engineering construction – at the Darmstadt Technical University, degree Dipl.-Ing., specialization in steel construction
Facts + Figures
Founding:
1872 to 2007 Donges Stahlbau GmbH, family-run business; 2008 to 10/2017 Donges SteelTec GmbH, member of the Mitsubishi Hitachi Power Systems Group; since 11/2017 part of the Munich-based Mutares Group.
2018 and 2019 Expansion of the product portfolio through the strategic acquisition of the companies Kalzip, Normek OY and FDT.
Employees:
180
Operating performance:
EUR 55 million
Annual tonnage:
max. 20,000 tons
Monthly capacity:
max. 1,700 tons
Inventory of primary material:
max. 6,000 tons
Unit weight and dimensions:
max. 160 tons
Dimensions 50 x 5 x 3 meters
Plant premises:
Total area: 65,500 m²
Covered area: 34,900 m²
Certificates:
DIN EN ISO 9001:2015
DIN EN 1090-1:2009+A1:2011
DIN 18800-7:2008
DIN EN ISO 17660:2006
DBS 918005:2016
DIN EN ISO 3834-2:2006
SCC**Certificate, Version 2011
Transport connections:
Rail and road
Machinery and Equipment
Certifications
Approvals and Manufacturer Qualifications
The high standard of our quality and process management provides for a high degree of customer satisfaction, boosts our company’s competitiveness in the steel construction market and leads to the continuous improvement of our internal procedures and processes, in addition to optimizing the use of resources.