Implenia AG engages in the provision of construction services. It operates through the following segments: Development, Switzerland, Infrastructure, and International. The Development segment involves activities such as, planning and construction of real estate projects. The Buildings segment offers planning, engineering, coordination, processing as general and total contractor, technical facility management, and execution of complex construction projects. The Switzerland segment includes the modernization, buildings, construction in German-speaking Switzerland, and construction in French-speaking Switzerland units. The Infrastructure segment concerns transnational activities in tunneling and foundation engineering. The International segment focuses on activities in the German, Austrian, Norwegian, and Swedish markets, as well as its foreign gravel plants. The company was founded on November 4, 2005 and is headquartered in Dietlikon, Switzerland.