Implenia AG provides construction and real estate services primarily in Switzerland, Germany, Austria, Norway, Sweden, France, and internationally. It operates through four segments: Real Estate, Buildings, Civil Engineering, and Specialties. The company offers tunnel construction; civil engineering; structural engineering; construction maintenance; works yards; building construction logistics; and bar post-tensioning systems services, as well as solutions for excavations, retaining structures, deep foundations, and noise barriers. It also provides system solutions; ultra-high-performance fibre building material; and high-strength expanded polystyrene tunnel elements. In addition, the company offers building construction services, such as new construction, modernization, master builder, and timber construction; real estate development, management, investment, consulting, and planning services; and real estate products, as well as building technology planning, facade technology, and geotechnical engineering services. Further, it develops, sells, and rents homes. The company is headquartered in Opfikon, Switzerland.