The core activity of Lörtscher AG primarily encompasses the following areas: General construction and civil engineering, Railway construction, Shotcrete, Rock and natural stone work, Hydraulic engineering. In addition, the company operates a quarry (Laubegg quarry), where various materials such as gravel, scree, planing material, riprap, rolled stones, blocks, boulders, bricks, recycled materials and milled materials are extracted and marketed.