°Ä²Êͼ¿â stands for the planning and execution of complex customer requirements in construction. We have our own dedicated teams of experts in all key trades along the entire construction value chain and offer specialised expertise from a single source. °Ä²Êͼ¿â is the market leader in Germany in the fields of building materials, building construction, government-services, industrial construction, structural engineering, special civil engineering, tunnelling, environmental engineering and transport route engineering.