The core activity of Haag und Partner GmbH is civil engineering, particularly in the areas of: * Building construction (statics, reinforced concrete, timber construction, steel construction) * Municipal and urban infrastructure (settlement drainage, road construction, road space planning, pipeline construction, municipal engineering) * Specialized deep foundation engineering (trenchless construction methods, construction surveying and digital terrain models) * Consulting and planning services for municipalities and private clients in the fields of construction and infrastructure. The company also offers specialized services such as feasibility studies, static testing of existing buildings and earthquake retrofitting.