Implenia Schweiz AG, headquartered in Opfikon near Zurich, is one of Switzerland’s largest construction and real estate development companies. It was founded in 2006 following the merger of Batigroup Holding AG from Basel and Zschokke Holding SA from Geneva, consolidating around 150 years of Swiss construction tradition. This heritage is reflected in its capabilities across major infrastructure, building construction, and real estate management.
With more than 8,500 employees, Implenia posted revenues of CHF 3.6 billion in 2024. The company's organisational structure is divided into three main divisions: Buildings, Civil Engineering, and Service Solutions. In Switzerland and Germany, it operates as both a developer and manager of real estate and infrastructure, while its international presence especially focuses on complex tunnelling works in Austria, France, Sweden, Norway, and Italy.
Examples of high-profile projects include its substantial role in building the Gotthard Base Tunnel—Europe’s longest railway tunnel—as well as the Roxburgh Dam, Swissmill Tower, and the ongoing Grand Paris Express urban rail expansion. Recent acquisitions such as Wincasa, a leading Swiss real estate service provider, and BAM Swiss AG have further extended Implenia’s portfolio into property management and healthcare construction.
Company leadership comprises CEO Jens Vollmar and Chairman Hans-Ulrich Meister. Listed on the SIX Swiss Exchange, Implenia is a key player in shaping Switzerland’s built environment, balancing technical execution with a growing emphasis on property management and operational sustainability.