KIBAG Bauleistungen AG is a major Swiss construction company based in Zürich. The company is part of the larger KIBAG Group, which has roots dating back to 1926 with the merger of two local gravel and dredging firms near Lake Zürich. Today, KIBAG Bauleistungen AG operates within the sectors of road, railway, and tunnel construction, and focuses specifically on executing civil engineering and roadworks of all types.
KIBAG employs around 2,000 people at over 60 locations in Switzerland, making it one of the country's largest construction and building materials enterprises. Its portfolio includes 14 gravel pits, 25 concrete plants, and multiple operating units in civil and specialty engineering. While its legal headquarters is Zürich, the organisation maintains branches in several Swiss regions—including Urdorf, Arnegg, and Winterthur—to support its broad geographic coverage.
Recent projects have included extensive renovation of major infrastructure, such as the Effretikon-Winterthur segment of the A1 motorway, showcasing the company’s expertise in large-scale transportation works. The company also runs operations in environmental services, recycling, and material transport via both land and water, including the use of specialized ships to move sand and gravel across Lake Zürich to urban concrete plants.
KIBAG is structured to allow acquisition and management of real estate related to its building activities, and is connected to several subsidiaries and associated companies in related industrial fields, underscoring its integrated approach to construction and resource management.